Is it difficult to create an estimate for electrical work? The answer will be: more likely yes than no, because surveying electrical installation work is a separate and perhaps the most labor-intensive section of any repair or construction. Developing an electrical calculation requires the estimator to have extensive and versatile knowledge in the field of electrical installation: features of hidden and open wiring, installation of various types of cable products, as well as installation of complex electrical equipment. The electrical installation work section in the estimate file includes many prices, but all this variety can be schematically divided into at least two parts: “repair” and “construction”.

Collections of repair work (TERr (FERr), GESNr) contain part No. 67 called "Electrical installation work". It is clear that this estimate standard describes possible options for estimating electrical installations during a major overhaul if it is necessary to dismantle or replace elements of the building’s electrical system. This is the reason for the rather small composition of prices included in this collection:

FERR 67-1 (3) – removal of electrical wiring, cable on brackets;

FERR 67-2 – dismantling of vinyl plastic and steel pipes and wires;

FERR 67-4 – removal of lighting fixtures and other devices: sockets, switches, lamps, electricity meters, etc.;

FERR 67-5 – replacing a burnt-out lamp with a new fluorescent (or incandescent);

FERR 67-6 (-7, -8, -9) – replacement of magnetic starters, package switches, lamps, sockets);

FERR 67- (-12-15) – repair of electrical equipment.

A completely different scale and variety of choice is provided to the estimator by the collection of installation works in part No. 8: electrical installations. This collection contains 5 large sections related to electrical work, including:

Electrical distribution devices, substations;

Sewage of electricity and electrical networks;

Lighting and power electrical installations;

Cable lines and electrical installations for special electrical equipment;

Cable lines and electrical installations for the mining industries.

Let's take a closer look at each of these departments. The first section contains prices for the installation of open switchgears for 7-650 kV and their components: current and voltage transformers, air and oil switches, as well as grounding switches, fuses, etc. There is also a price GESNm 08-01-25 for the installation of complete transformer substations. The second and third sections describe the installation of enclosed switchgears for 35-220 kV and 3-20 kV. Here you can also find prices for the installation of prefabricated, round and branch busbars (see GESNm 08-01-68 - GESNm 08-01-76). The fourth section - “Converter devices” - contains prices for the installation of control cabinets, converters and heat exchangers for them.

One of the most important and extensive departments of technical installations and electrical work is the 2nd: electrical networks and electricity sewerage. If the first section mainly describes the laying of cable lines up to 500 kV along installed structures, in trenches, or pipes, then in the second, third and fourth, attention is paid to electrical installation work in urban and industrial transport networks. Section 5 describes methods for insulating outdoor lighting, and Part 6 describes wiring inside buildings. Thus, wiring can be installed in metal trays and boxes (GESNm 08-02-395 (396)), fastened with overhead brackets (GESNm 08-02-401), laid along installed structures (GESNm 08-02-402) or in pipes and sleeves (GESNm 08-02-412 (413)). Below are prices for installing busbars and grounding conductors.

It hardly makes sense to describe the contents of each department, since they can easily be found in the installation collections of the current edition of 2013 (2014) or in the Grand Estimate PC. The most important point when drawing up an estimate for electrical installation work is the competent selection of compatible prices from suitable parts and collections. Any calculation must reflect the actual costs of labor and other resources for the electrical installation performed.

To illustrate the example of preparing a calculation for electrical installation work, let’s take a calculation compiled using the Grand Estimate PC (2013 base).

A sample estimate for the technical re-equipment of a water intake station in terms of electrical equipment.

Rationale	Name	Col.	Basic Salary	EkMash	Salary Fur	Total
TERm08-03-572-04	Installation of a control unit in a cabinet version / distribution cabinet with dimensions of 1200x1000 mm, mounted on the wall	pcs.	27.78	77.62	3.01	405.80
TERm08-02-146-7	Laying 35 kV cable weighing up to 13 kg: with fastening with brackets	100 m cable	374.42	2717.77	285.27	3758.40
TERm07-04-030-10		pcs.	703.70	2246.820	169.55	4019.36
TERm08-02-146-10		100 m cable	700.20	4857.59	524.05	6230.51
TERm08-02-146-09		100 m cable	569.74	4039.99	430.95	5279.84
TERm08-03-591-09		100 pcs.	303.28	9.85	0.41	412.51
TERm08-03-591-02		100 pcs.	256.31	9.85	0.41	303.64
TERm08-02-420-01		100 pcs.	1766.70	1341.57	56.52	4523.66
TERm08-03-545-02 Krasnodar		pcs.	39.45	1.84	0.00	158.08
TERm08-03-594-07 Krasnodar	Luminaires with fluorescent lamps, separately installed on rods with two lamps	100 pcs.	1178.08	2352.94	547.53	5355.53
TERm07-04-030-10	Artesian pump with submersible motor 1ETsV 8-25	pcs.	703.70	2246.820	169.55	4019.36
TERm08-02-146-10	Laying 35 kV cable weighing up to 30 kg: with fastening with brackets	100 m cable	700.20	4857.59	524.05	6230.51
TERm08-02-146-09	Laying 35 kV cable weighing up to 23 kg: with fastening with brackets	100 m cable	569.74	4039.99	430.95	5279.84
TERm08-03-591-09	Plug socket with hidden wiring	100 pcs.	303.28	9.85	0.41	412.51
TERm08-03-591-02	Single-key switch for hidden wiring	100 pcs.	256.31	9.85	0.41	303.64
TERm08-02-420-01	Installation of a branch box with a fuse	100 pcs.	1766.70	1341.57	56.52	4523.66
TERm08-03-545-02 Krasnodar	Box with clamps for wires and cables with a cross-section of 6 mm2, mounted on a wall with the number of clamps 20	pcs.	39.45	1.84	0.00	158.08

The estimate does not indicate the materials and equipment included in the prices, which are taken from the TSSC directory (database of the Krasnodar Territory 2013). Also some materials and equipment, incl. ECV pump of the required power, fluorescent lamps and control cabinet are purchased at supplier prices (excluding VAT). This sample cannot be directly used in another estimate, since it is nothing more than an example of selecting prices for estimating electrical installation work.

Before proceeding with the installation of electricity in the house, you need an estimate for materials. This is necessary in order to calculate approximate (or even exact) costs and during electrical installation do not encounter a situation where there is not enough money for sockets or switches. Based on the prepared cost table, you can understand whether there are enough materials or whether it is better to purchase cheaper materials in order to certainly avoid problems with shortages. Next, we will tell you how to create an estimate for electrical installation work, providing step-by-step instructions with a video, as well as a sample.

Step 1 – Prepare documents

The first step is to prepare documentation on the basis of which an estimate for electrical installation will be drawn up. For calculations you need to collect the following documents:

1. A floor plan showing the electrical wiring diagram.
2. Electrical equipment placement project.
3. Technical conditions that need to be obtained from the electricity supplier (if necessary). We talked about this in a separate article.
4. Permission to connect to the electrical network (if necessary).

In addition, depending on the situation and characteristics of the facility, you may need a statement of balance sheet ownership, a document on the limitation of operational liability, as well as a work order for the supply of electrical equipment. All these documents are mostly used in enterprises. As a rule, in order to draw up an estimate for electrical installation work in a residential building, it is enough to prepare the first 2 documents from the list, as well as a permit for electrical installation.

Step 2 – Perform the calculation

Calculating the cost of installing electrical wiring is not too difficult, but you will have to take this procedure quite seriously. The more points are indicated in the estimate, the less chance that after the electrical installation is completed, situations will arise that will require you to overpay. So, drawing up an estimate for electrical installation work consists of the following steps:

1. Obtaining a floor plan linked to electrical appliances. You can take it to the BTI.
2. Registration of permission to connect to the electrical network.
3. Bringing all technical conditions to the standards.
4. Quantity calculation based on the wiring diagram.
5. Search for the best deals on materials.
6. Cost calculation.

If, after you have drawn up an estimate for the project, it turns out that there is not enough money, you will have to reconsider the project and, if possible, either remove some electrical points or purchase cheaper materials.

This instruction is suitable for those who want to independently calculate the cost of electrical installation. If you doubt that you can correctly draw up an estimate for electrical installation work, it is better to entrust this matter to specialists, but they, of course, will take money for it. Another important point is who will do the electrical installation. Would you like to do your own electrical wiring in your own home? Then you miss this moment. If it is assumed that the electrical work will be carried out by a company or a private electrician, it is necessary to find out what the cost of electrical installation will be, as well as dismantling the old network (if the apartment is not a new building) and be sure to include this figure in the estimate.

Please note that many companies offering electricity installation services have their own online calculators on their websites, with which you can quickly calculate the cost of electrical installation. There, as a rule, you can also find prices for the installation of certain electrical points (sockets, switches, meters), laying cables and gating walls for wiring. This information will allow you to easily calculate the cost of electrical installation work at new prices.

It should also be noted that estimates can be comprehensive (for the entire facility) or local (for a separate room/premises).

The best way to create a cost plan is in Microsoft Excel. All you need to do is download this program to your computer, install it and create a table in it. Next, enter all the values ​​into the table, and then make calculations based on the formulas. How to prepare an estimate for electrical installation work in Excel is clearly explained in the video example:

Sample of calculation works

Prices for 2019

Well, the last thing I would like to provide is estimated prices for electrical installation in residential premises. So, in 2019 the cost of electrical installation is as follows:

• installation of a cable channel (1 m.p.) – 120-180 rub. (depending on the material of the walls and the size of the product);
• Open cable laying costs about 60 rubles. per linear meter, 60 for hidden electrical installation;
• installation of a circuit breaker – 300-600 rubles;
• installation of a shield - from 1500 to 5000 rubles;
• connecting a wall sconce – 700 RUR;
• installation of socket – 300 rub.

These are the basic prices for electricians, which we recommend using as a guide when drawing up an estimate for electrical wiring work. In general, excluding the price of materials, the cost of electrical installation in 2018-2019 will be (in rubles):

• one-room apartment: from 18 thousand if the walls are made of brick, from 25 thousand if they are concrete;
• two-room apartment: from 25 thousand (brick), 35 (concrete);
• three-room apartment: 40 thousand (brick), 45 (concrete);
• wooden cottage: up to 100 sq.m. 65 thousand, over – from 95 thousand;
• brick house: up to 100 sq.m. 75 thousand, over – from 110.

Price list example:

That's all I wanted to tell you about how to draw up an estimate for electrical work in an apartment or house. We hope our instructions were useful and understandable for you.

To find the right approach to drawing up an estimate for electrical installation, you should start with the order of work. When electrical work is carried out in an apartment, all work is divided into two stages:

• marking;
• assembly

The markup, in turn, includes:

• preliminary marking of the location of wires on the walls and ceiling;
• pipe laying;
• installation of switches, insulators and connectors;
• electrical wiring device;
• installation of socket boxes, branch boxes, distribution cabinets, etc.;
• electrical wiring connection and testing.

The installation itself includes the following steps:

• installation of sockets;
• connecting lamps, chandeliers and other lighting fixtures;
• installation of power electrical appliances.

Estimate for electrical installation work in the apartment

In general, all electrical installation in the apartment can be divided into:

• dismantling old wiring;
• initial marking;
• mechanical work - making grooves in the walls;
• laying cables and wires;
• installation of power supply points - sockets, switches, as well as lighting devices;
• connecting cables and wires to the electrical panel;
• launch and testing.

The estimate for electrical installation of an apartment consists of two parts - the cost of the work of electricians and the cost of basic and consumable materials. Includes the following items: electrical appliances for various purposes, cables and wires, fastening elements, switchboard equipment, lighting electrical appliances, consumables, etc.

Another important point . Unlike general construction estimates, the electrical estimate does not provide for a certain supply of necessary materials. It is assumed that everything will be purchased as needed directly during installation.

You can consider marking each stage separately.

Dismantling . It includes disassembling old sockets and switches, and, if necessary, removing old or faulty wiring.

When preparing estimates for items related to dismantling, estimators use prices from the collections GESNr-67-(01-05), FERr-67-(01-05) and TERr-67-(01-05), although many also use prices for installation, multiplying them by coefficient K=0.3.

Wall chipping . To estimate these works, prices from the collections ENiR 46-03-012 or from the repair collections GESNr-69, FERr-69 and TERr-69 in positions regarding cutting holes in the walls manually or using mechanisms are suitable.

Laying cables and wiring . Cables are laid either openly - in boxes, or hidden - under plaster or above suspended ceilings. For apartments, the second method is considered the most aesthetic and safe. But it has one significant drawback - if the electrical wiring is damaged, it will be difficult to quickly replace it; you will have to lay a new one.

For positions on laying cables and wires in apartments, prices from the collections GESNm-08-02-(395-422), FERm-08-02-(395-422), TERm-08-02-(395-422) are used.

Installation of electrical equipment . This section includes the installation of sockets and switches, as well as the connection of lighting fixtures, branch boxes, meters, and replacement of group panels.

For these works, prices from the following repair collections GESNr-67-(05-15), FERr-67-(05-15) and TERr-67-(05-15) are used. Or GESNm-08-03-(591-594), FERm-08-03-(591-594), TERM-08-03-(591-594).

Connecting cables . The layout and connection of cable cores or wires can be found in the collections GESNm-08-03-574-(01-09), FERm-08-03-574-(01-09), TERm-08-03-574-(01- 09).

Commissioning works. All types of commissioning work carried out in residential buildings, such as measuring resistance or voltage, checking grounding, monitoring insulation, etc., can be found in collections of prices for commissioning and commissioning GESNp-01, FERp-01 and TERp-01.

Electrician in one-, two- and three-room apartments

Depending on the number of rooms in the apartment, the cost of electrical installation varies only in the volume of work, as well as in the amount of materials used during installation.

The standard requires the following number of electrical appliances installed in a one-room apartment:

• in the kitchen - 5 sockets for a refrigerator, electric stove and other equipment;
• in each room - 5 sockets;
• 5 switches with junction boxes;
• one socket for a washing machine;
• one socket for TV antenna and telephone.

Prices for types of electrical installation work differ depending on the material of the walls - for concrete they are higher than for brick. Standard volumes for some work for a one-room apartment are as follows:

• wall gating – 80 m;
• shield bulkhead – 1 piece;
• installation of power supply points – 17 pcs;
• installation of junction boxes – 5 pcs;
• laying of power cable – 160 m;
• telephone cable laying – 40 m.

Some other types of additional prices are added to the estimate, for example, for dismantling, electric lighting, connecting fans, meters, bells, etc.

For a two-room apartment, the number of sockets for rooms is already taken to be 10, instead of 5, and the number of switches and junction boxes becomes equal to 6. The approximate volume of electrical work for a two-room apartment will be as follows:

• wall gating – 85 m;
• installation of power supply devices – 23 pcs;
• junction boxes – 6 pcs;
• laying of power cable – 200 m;
• installation of telephone wire – 50 m.

When drawing up an estimate for the electrical installation of a three-room apartment, the required number of sockets for the rooms will be 15, and the number of mounted switches with boxes will be 7. The following volumes are already taken for electrical installation:

• wall gating – 90 m;
• installation of power supply points – 29 pcs;
• number of junction boxes – 7 pcs;
• installation of power cable – 250 m;
• telephone line laying – 60 m.

Prices can be taken from the above collections. The panel bulkhead on the staircase is the same for different numbers of rooms. It should be remembered that when estimating the costs of electrical installation in an apartment, you must first divide it into four blocks:

• kitchen sockets and switches;
• room sockets and switches;
• socket for washing machine;
• lighting fixtures throughout the apartment.

Prices for the materials used are taken from the collections of SCM, TSC and FSNB or according to price lists.

An example of an estimate for electrical installation work in an apartment

Download an example of an estimate for electrical work in an apartment -

When creating any project, the estimate is an important document, the purpose of which is to determine all the required costs, taking into account the labor resources and materials expended. Electrical installation work plays a very important role in construction, so in this case, saving money at the expense of quality is unacceptable. In this regard, a serious approach to drawing up estimates for electrical installation work is required.

Required Documentation

To compile estimated costs, you need a floor plan of the BTI, linked to the electrical equipment, and a design project for the electrical section. The following documents will also be required:

• permission to connect power;
• Specifications for electrical installation work;
• document on limitation of operational liability;
• statement of balance sheet ownership;
• electrical equipment project.

An explanatory note (calculation), a plan for group networks (lighting and electrical equipment), a diagram of additional potential equalization and approval of the plan by Rostechnadzor should also be included.

Among other things, an order for electrical installation equipment is drawn up, which includes information about the length of all wires, their manufacturer and auxiliary materials. The work order is drawn up with the same accuracy as the estimate.

Type of estimates

Estimates for electrical installation work are divided into two categories: summary (comprehensive), compiled for the entire building, and local (object-based), performed separately for the premises. Before you start writing them, you need to complete the investment justification. At the same time, the estimated cost of all work is determined. Documents can be presented in two types:

• estimate calculation (contains detailed cost with an overestimation of the cost level);
• estimate (calculation is carried out according to design drawings).

The second type allows you to create a better estimate for electrical installation work.

List of works

First of all, labor costs must be described. This will help avoid price increases in the future. The list of works is presented below.

1. Installation of wiring (exposed) on brackets on concrete surfaces and on plaster walls.
2. Laying corrugated (open) wiring.
3. Placement of the electrical box on concrete, brick pad and plaster.
4. Installation of overhead junction box.
5. Installation of a switch, socket and decorative insert.
6. Installation of a junction box in plaster, brick wall and concrete.
7. Changing the triple electric unit.
8. Installation of socket box.
9. Installation of a button for an electric bell.
10. Electric bell assembly.
11. Creating a hole in a plaster wall (brick or concrete wall) for a socket box.

Writing algorithm: stage 1

When drawing up an estimate for electrical installation work, it is necessary to determine the exact amount that is intended for the event in question. The operating principle is described below.

1. Get a floor plan with reference to electrical appliances. BTI or a studio that compiles electrical projects can help with this.
2. Purchase permission to connect capacities. This should be done in the DEZ or HOA. From these same organizations you should obtain a document on the division of operational responsibilities between the balance holder and the owner.
3. Bring all technical conditions to the standards, since they are strictly checked, and any deviation entails refusal.

Writing algorithm: stage 2

After completing the previous operations, you need to perform a number of important actions.

1. Contact good specialists who are drafting electrical appliances. At this stage, it is important to turn to experts, because only professionally performed work can guarantee safe and constant operation for a long time.
2. Choose the best company providing installation services. To do this, you should ask for information about it, find out customer reviews about the quality. Estimates for electrical installation work must include these costs.
3. Select suitable electrical appliances and include their cost in the estimate.
4. Calculate the ratio of costs and balances. If funds are tight, you should make the project simpler by choosing less expensive equipment.

Example of an estimate for electrical work

The object is written in the title of the document in question. The front page indicates the total cost, installation costs, notes the calculated labor intensity and estimated wages. More detailed information is presented in the form of a table divided into several columns. A sample estimate for electrical installation work is presented below.

LOCAL ESTIMATE CALCULATION No. XXX
(type of estimate)
Name of work
Estimated cost:
Labor intensity according to standards:			thousand people/hour
Estimated salary:

	Item no.	Code and position number of the standard, name of work and expenses, unit of measurement	Quantity	Cost (per unit, rub.)		Total cost (RUB)			Labor costs, not required. obs. cars (person-hour)
					ex. cars		wages for main workers	ex. cars	service cars
				wages for main workers	incl. wages fur.			wages fur.

The first column is the serial number, the second is the position. The third indicates the code and the work itself. The fourth column should indicate the quantity. This is followed by columns with the cost of work and labor costs. At the end of the table, the results are summed up, and the person who compiled the estimate and the one who checked (position, signature, full name) sign.

Electrical installation work is a rather troublesome and time-consuming process. Currently, different calculation methods allow you to calculate its cost: mixed, index, compensation, resource. The use of specialized software will significantly simplify the task and avoid errors, because the cost of electrical installation work depends on the estimate, and this affects the quality and service life of the equipment. To do everything at a high level, you can contact the estimate department of an electrical design company. Our specialists will do all the work efficiently in the shortest possible time.

An estimate is a calculation plan that displays all upcoming expenses for the implementation of a specific project. Preparation of estimates for electrical installation work- a very labor-intensive process that requires a professional approach on the part of the performer. Without this document, it will not be possible to find out the exact amount of expenses for the implementation of certain works. The entire process of drawing up estimates can be divided into several main stages.

First stage. Determining the type of estimate

There are two types of estimates for electrical installation of wiring and equipment:

1. Comprehensive estimate. The document specifies the costs of carrying out work throughout the entire facility (in all premises of a particular enterprise, office, etc.);
2. Local estimate. The cost of work in a separate room is taken into account.

In simple words, if you need to calculate the costs of laying, for example, wires in one office or workshop, look for a sample of drawing up a local estimate. But complex calculations will be needed, for example, during the construction of a new facility or during its comprehensive renovation.

Second stage. Collection of documentation

So, before starting any calculations, it is necessary to collect a certain package of documentation, which includes:

• a plan of the room in which installation work will be carried out (the location of electrical equipment should be marked on the diagram);
• information from the electricity supplier about the technical features of servicing the facility;
• permission to connect the facility to the electrical network and the corresponding act on its service zones (documents must be obtained from the Homeowners Association and the Economic Development Authority);
• the design of electrical equipment and networks itself;
• a contract and at the same time a technical specification for a company providing labor. The document should calculate the cost of purchasing electrical equipment (such a document-contract is usually called a work order). The paper must include information about the technical characteristics, features of the composition of the purchased products, as well as information about the manufacturer of the goods.

It is necessary not only to collect the listed documents, but also to carefully study the information presented in them. Particular attention should be paid to the explanatory note and the power supply design diagram.

After collecting and processing all official information about the property, the estimator must determine whether the upcoming costs are justified. A specialist will be able to answer this question only after familiarizing himself with the current tariffs for each type of upcoming work. It is also necessary to compare the actual conditions in which the electrical installation will be carried out with the information provided on the papers.

Once equipment costs have been calculated, compare them with the amount budgeted for the project. If expenses exceed those planned, start looking for similar equipment options at a lower price.

An important stage in drawing up an estimate is the selection of a contractor company providing electrical installation services. Your opinion about the organization should be formed not only by dry calculations of the cost of services, but also by reviews of previous clients. The costs of finding a contractor and formalizing an agreement with workers are also included in the estimate.

The last stage. Drawing up estimates for electrical installation work: program

After collecting and processing all the information, the time comes to draw up a final estimate, which can be of two types:

• cost estimate (all costs are considered and checked down to the smallest detail, all kinds of expenses unforeseen by the project are taken into account);
• brief estimate (the report is based solely on existing design diagrams and drawings).

It’s easy to guess that a better, more complete and useful estimate will be one compiled on the basis of a larger number of documents and taking into account all the nuances of specific electrical installation work.

The range of work that should not be missed in the estimate

Be sure to include labor costs for installers in your estimate. Without this data, information about project costs will be considered incomplete. In addition, do not forget to include the following work in the official document:

• laying wires in an open way (the cable is attached to surfaces with staples) and closed (the electrical wiring is laid in a box or corrugation);
• installation of plastic boxes on various surfaces (on concrete, brick or gypsum block walls);
• equipment of openings for junction boxes and socket boxes;
• cutting through walls;
• laying cables along grooves (grooves) and sealing holes;
• installation of all kinds of switches, sockets, electric bells, etc.;
• pulling wires through channels;
• installation of all components of the distribution board;
• organization of grounding (external type) and connection of the installation to electricity;
• activities to test laid wires and installed electrical equipment.

Drawing up estimates for electrical installation work: examples

Let's take a closer look at the structure of the local estimate for cable laying. On the title page of the document you must indicate the date of its preparation, as well as the initials of those officials with whom it was agreed upon and approved. In addition, you should indicate the name of the construction site where electrical installation work will be carried out.

• estimated cost;
• costs for construction and installation work;
• the cost of the necessary equipment;
• additional expenses;
• standard labor intensity;
• the total amount of funds to pay wages to workers.

The above information should be placed in two columns, one of which indicates the base price, and the other the current one.

You also need to indicate the date on which the prices of work and equipment were calculated. This information can be indicated, for example, with the following phrase: “The estimate is compiled in prices for June 2017.” All other information in the document will be presented in schematic form. In the so-called “header” of the table, the following columns should be indicated:

1. Serial number of each type of work.
2. Pricing code and resource codes.
3. Name of work and costs.
4. Units of measurement (pieces - if about equipment, people - if about labor).
5. The number of these units.
6. Price per unit (you must indicate the currency in which the calculations were made).
7. Correction factors.
8. Cost in prices for the current year.
9. Item coefficient recount.
10. Conversion factors.
11. Cost in current prices (works or equipment).
12. ZTR total person-hour.

Such an estimate may consist of several sections (categories), into which all electrical installation work can be roughly “sorted”. For example, manipulations for dismantling old devices will be placed in the first section, and work on wiring and connecting the cores of new wires will be placed in the second.

At the end of the document, you must indicate the total amount of costs for the implementation of electrical installation work, indicate the full name of the contractor and the person checking the estimate, and then certify the document with their signatures.

As you can easily see, budgeting is a complex and multifaceted process. It is important not only to have financial calculation skills, but also to know the basics of electrical installation, otherwise the estimator will not be able to understand the entire list of works and the features of professional equipment. That is why specially trained personnel are in demand, professional estimators, whom enterprises hire to carry out various types of calculations and prepare financial statements for upcoming electrical installation work.