The basis for the development of design estimates for the arrangement of engineering networks are the Technical Conditions issued by their owners and local authorities and arising from the results of geodetic surveys.

First of all, the need for each type of resource is calculated. Based on these data, the main technical decisions of the project are made.

When developing an estimate, it is necessary to take into account the region of location of the projected facility, climate features, the relative position of all communications, pressure in the system, and operating conditions. Distinguish between drawing up estimates for internal and external engineering networks. To calculate the estimated cost, information is needed on the length of engineering communications, the depth of their laying, the diameter of pipelines and the cross section of wires and cables, the material of manufacture and the method of laying (underground, air, canal, and others).

External engineering networks are communications laid to supply the facility with energy and other resources. These include:

• heating network;
  
• gas pipeline;
  
• plumbing and sewerage;
  
• electrical and other low current networks.

Projects of external engineering networks are developed taking into account the consumption load. To bring them to the object, special earth-moving equipment and materials are required, the costs of which are reflected in the estimates.

Trench and trenchless laying of engineering networks is possible, which is determined by the conditions of construction and the existing building.

The main difficulties and mistakes
with independent design:

1. Lack of an agreed project of the Sanitary Protection Zone (SZZ)
2. Lack of metering devices and objective (calculated) data on the required productivity.
3. Lack of title deeds to the land.
4. Inaccuracies in the preparation of the Terms of Reference: all the necessary studies were not taken into account, the documents listed above were not taken into account.
5. The justification of the price was performed incorrectly, on the basis of commercial proposals of non-specialized organizations, without taking into account the fulfillment of the requirements of technical conditions, the need for inspection of buildings and structures, etc.
6. Surveys, research, and design are performed by different companies, which causes delays and additional work.

 Decisions from
Company "Gutman Construction":

• We will analyze the existing situation, prepare the Terms of Reference for the SZZ project. If necessary, we will execute the project of SZZ and agree on it.
• We will collect all the necessary data, make calculations and submit it to the customer for consideration. If necessary, we will temporarily install metering devices.
• We will help in the preparation of documentation, if necessary, we will include it in the TOR for design.
• We will analyze the existing situation and prepare the correct technical task.
• We will prepare an estimate for design and exploration works and surveys, based on basic price guides.
• We have considerable experience and qualifications for the organization of a full range of design and search works. Company "Gutman Construction" has SRO permits for both design and exploration work. We are guaranteed to provide a positive conclusion of the examination and support during SMR.