Offices Nationwide
Good Hearing?
A typical person with good hearing can hear from about 20Hz to 20kHz (the audio bandwidth). A person's voice will usually range from 500Hz to 2kHz...more
Point of Reference
10 dBA is the sound level of normal human breathing. To put it into perspective, thunder is a whopping 120 dBA...more
Part L2B
Conservation of fuel and power
Applies to existing buildings other than dwellings including alterations, conversions and extensions.
Our other services include:
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Display Energy Certificate can also be known as:
DEC,
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Company No. 06728970
In Area N
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