Drawing an estimate for the installation of the pipeline

The estimate is a document that contains all calculations regarding upcoming work. This document is drawn up during construction and any type of repair or interior decoration. The estimate is necessary in order to approve all expenses and the total amount of upcoming work. Its formation is based on projects, statements regarding defects, the total work, the general technical characteristics of buildings and the cost of the material.

Compilation of estimates is a necessary step during the installation or replacement of water, sewer or heating pipes. It allows you to pre -determine the final cost of the process, thus, overhead costs are excluded. If the laying is carried out independently, the estimate of the pipeline will help to immediately purchase everything you need and relieve the troubles that are associated with the lack of material or tool. If the repairs are carried out by workers, then a document with calculations will help get rid of unnecessary expenses.

Table of contents:

1. The rules for compiling an estimate for the installation of the pipeline and the total estimate for construction work
2. Calculation of estimates directly for the installation of the pipeline
3. Calculation of estimates for the installation of the heating pipeline

The rules for compiling an estimate for the installation of the pipeline and the total estimate for construction work

When compiling an estimate for the pipeline or other types of work, they take into account the following factors:

• Characteristics and parameters of buildings, their individual parts and various design features that are included in the project. Simply put, it is easier to calculate all parts of the structure that are included in the volume of work, take into account their features of the protrusions of the room, the need to lay the pipeline in the wall, which will require additional drilling, adding elements that were not part of the old project.
• The total size of all works that arise from the statements and volume of mounted elements, this factor is determined by design materials. Based on the parameters of the structure and the type of work, the amount of the necessary material is calculated, its preferred type and cost is determined. For example, if an estimate for laying the water supply in the bathroom is calculated, then it is necessary to calculate not only the meter of the pipes, but also take into account the number of mixers, fasteners, couplings, cranes.

• The total number of tools and utility materials that will be needed in the process of dismantling and installation. This amount is determined using custom -made specifications, statements and various documents that are included in the project. With independent compilation of estimates, it is necessary to make a list of tools and improvised means that will be necessary in the work.
• Given the market price for the selected materials, as well as the cost of work, using calculation, calculate the total amount of the estimate. For summing up the price for work, applicable standards and indicators are used. To accurately determine the amount that will spent on materials, it is necessary to find out their average market price.

For competent compilation of estimates, it is necessary to know some factors that classify them into different types. So for buildings and structures, estimates are compiled for such work:

• General construction.
• Construction work of a narrow specification.
• Sanitary and technical measures.
• Laying electrical wiring, lighting.
• Installation of electrical installations.
• Installation and purchase of technological equipment, devices for monitoring and measuring various indicators in residential and industrial buildings, devices with weak alarm voltage, communications, automatic devices.
• Laying the communications of the pipeline of drinking water, sewage and heating.

Given the total area of \u200b\u200bthe building or the repair room, the calculation of the estimate is divided into the following types:

• Layout of vertical work.
• Installation of engineering communications.
• Laying roads and ways.
• Work on the general improvement of the house territory, landscape design.
• Calculation of small architectural forms.

All these classifications must be taken into account in order to calculate the procedure for performing all the work and avoid unnecessary expenses during the estimate. Some types of construction have their own specifics, which is not comparable with other works. If you plan not only the estimate of the technological pipelines, but also other related construction and repair work, then all possible sections are taken into account. The following are distinguished from them:

• Construction processes:
  • earthen;
  • on the construction and repair of the foundation and walls in their underground part;
  • Bill construction and repair;
  • installation of the frame;
  • floors;
  • floors and the basis of coatings, bases, roofs;
  • installation of structures in the openings;
  • installation of stairs and sites;
  • decor and finishing work;
  • work on the installation of additional designs.

• Specialized construction work:
  • foundation for various equipment;
  • specialized grounds;
  • equipment of channels and pits;
  • Equipment of chemical, protective and other coatings.
• Work on the arrangement of internal, sanitary communications:
  • drinking water pipeline;
  • Dispenser sewage;
  • heating pipes;
  • ventilation and air conditioning systems.
• Installation of various equipment:
  • purchase and installation of technological equipment;
  • laying of technological pipes;
  • Installation of metal structures for installing equipment.

Calculating the total amount of estimates, it is necessary to take into account the following points:

• The main costs, they include the costs of all the resources that will be needed in the process:
  • material materials, products, structures, equipment, furniture, inventory;
  • technical hire of techniques and mechanisms;
  • Labor costs for the work of workers, they are often included in the cost of renting equipment. If the estimate is calculated on the technological pipelines, then the lifting technique and the digging equipment are most often required.
• Additional costs take into account the price of maintenance of the construction site, the organization of the process and its management.
• Estimated profit is the total figure of funds that will cover all expenses for the development of production, social sphere and financial incentives.

  Calculation of estimates directly for the installation of the pipeline

Moving directly to the project for the installation of the pipeline and the preparation of its estimate, it should be noted that this process has its own specification. Based on the general rules given above, it is necessary to have knowledge and understanding of the process of laying and dismantling pipes. First you should decide on the type of pipeline, which there are several:

• Heat supply network.
• Heating.
• Drinking water.

• Distribution of drains.
• Ventilation.
• Oil products.
• Technological pumping of various liquids.
• Transportations of various raw materials.

On the household scale, the most often necessary estimate of the dismantling of the pipeline and its subsequent installation is necessary, or only the laying of the pipes. When calculating the project, it is necessary to take into account the type of pipeline, which is internal and external. Laying pipes outside the building is the most difficult process than internal work. The most important factor that affects the simplicity, speed and lower cost of internal work is the simplicity of creating the necessary conditions. The building does not play a big role, the presence of various atmospheric phenomena, the effect of soil.

If we are talking about laying an external heating network, then it is necessary to take measures to increase the life of the pipes and reduce the loss of heat to a minimum. These operations also have additional costs. During the calculation of estimates for the installation of the pipeline, it is necessary to pay special attention to the following factors:

• Type of pipes and material from which they are made.
• General Memo pipes.
• Type of installation and number of fasteners, supports.
• The need to install compensators and their number.
• Protective agents protecting pipes from corrosion.
• Thermal protection of pipes.

If the pipes are mounted in the ground, then it is necessary to equip the trays, impenetrable, passable and semi -transmitted. Also, this is done if there are branches, switching chambers in the heat supply network. Laying pipes underground provides for earthwork this is the development of soil and loading it into equipment. During planning for the arrangement of impassable channels, the preparation of estimates includes the following works:

• Development of soil into a dump or excretion of soil on automotive equipment.
• Arrangement of the base.
• Strengthening the trench with concrete slabs or trays.

• Equipment of waterproofing protection of walls and bottom of the trays.
• Installation of supports and compensators for laying the pipeline.
• Pipe priming.
• Pipe processing with paintwork.
• The arrangement of the thermal insulation layer.
• Laying plates.
• Waterproofing protection of the entire structure.
• Filling the trench with soil.

During the compilation of the estimate, it is necessary to leave as many notes as possible in defective statements. This will help the estimate make the most accurate costing. For example, one of the most common errors is the application of one type of anti -corrosion protection to the pipes of the water supply and thermal network. Often in this capacity, 1 layer of primer GF-021 and 2 layers of the enamel PF-115 acts, while these materials are not applied to the surface with elevated temperature.

Calculation of estimates for the installation of the heating pipeline

The laying of the pipeline of the heating network begins only after the implementation of all capital elements of the building, at this stage, the compilation of the estimate begins. First, a network project is compiled, which includes all pipelines that need to be mounted, as well as heating devices and equipment. When compiling an estimate, the following points must be approved:

• The total power of all heating devices that will support the necessary temperature in the structure. Counting their number, take into account the quality of thermal insulation of the building and the climate of this region.
• The type of equipment used is gas heaters, electric or hard fuel operating.
• Type and total number of all equipment that gives heat.
• Accommodation, total meter and a variety of chosen pipes.

After the approval of all components of the system, axonometric drawings of the gaskets of all contours are performed. Also, at this stage, a schematic drawing of the location of the equipment giving heat in structure is constituted.

Further, on the basis of all obtained from the estimates and drawings of data, they form an investor estimate, which is a preliminary calculation of the cost of work. This calculation contains:

• Costs of all materials.

• The duration and type of all work on the installation and launch of the system.
• Labor costs for work.

To facilitate independent calculation of estimates, it is necessary to use special programs that are available online. Most often, these programs have video and text instructions that help to deal with the algorithm of their work. If the work is performed by a contracting organization, then it needs to provide the following data:

• Assignment for the installation of engineering systems.
• The desired project design and the type of finish.
• Drawings and accompanying documents containing the project.

The most costly estimate is material and equipment. In detail on this paragraph, you must have the following data:

• Heat generator boiler, stove or fireplace.
• Heating radiators.
• Pumps that maintain pressure in the system.
• Equipment for automatic control of the system.
• The type of pipeline is polypropylene, metal and so on.
• Fitings for this type of pipeline.
• Court reinforcement.
• Thermal insulation and soundproofing materials.

Next, it is necessary to accurately determine and paint the order of the necessary work, which includes:

• Installation, connection and configuration of heating equipment.
• Equipment of systems that allocate ventilation equipment and/or connection to the chimney.
• Installation and connection of heating contours, often in the data, the item is also included in the manufacture of holes in the walls for the pipeline.
• Installation of the system warm floor.
• Installation and connection of radiators.
• Installation of automatic control of the heating system.
• Transport and related costs.