«Ukrtonnelstroy» Company has been formed in 2000.
The collective consists of professionals having higher or special education in construction, as well as long experience in construction of underground facilities.

The Company specializes in the following activities:

• construction and refurbishment of viewing chambers of sewer collectors;
  
• restoration and refurbishment of operating engineering networks;
  
• refurbishment of sewer collectors by a method of relining;
  
• anticorrosive protection of metal and reinforced-concrete surfaces.

Refurbishment of operating pipelines is done by a method of polyethylene pipe drawing-in that allows replacing the pipelines in diameter from 200 to 1000 mm. Readjustment is made with reduction of collector’s diameter.
For renovation of pipelines of a big diameter (from 1000 to 2500 mm) the restoration technique is used with the application of SPIRO polyethylene pipes manufactured by KWH Pipe Co. (Poland).
Restoration of walls and coverings of viewing chambers is made using PEЭ80 high-pressure polyethylene ribbed sheet.
The chamber warranty lifetime is then increased to 50 years.

The following are among Enterprise’s Projects:

• refurbishment of a sewer collectors along Lesnoy Ave.,  Kyiv City (D700-800-900 mm, 1940 m long);
  
• refurbishment of a sewer collector along Kyoto Str. in Darnitsky Rayon of Kyiv City (D 800-1000-1500 mm, 1400 m long)
  
• construction of a sewer collector along Rossyiskaya Str., Kyiv City (D 1200 mm, over 1500 m long).