Offices Nationwide

Air Testing & Leakage
Air Pressure Testing is not just for new-builds, it can be used to find leakage areas in existing buildings, improve the air tightness and improve/stop drafts..more

Sound Absorption
The loss of sound energy when sound waves come into contact with an absorbent material such as ceilings, walls, floors and other objects...more
Our other services include:
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C4SH can also be known as:
Code Assessment, Code for Sustainable Homes Daylight Calculation, Sustainable Homes, CSH, Code for Sustainable Homes,
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Company No. 06728970