Offices Nationwide

Air Testing & Leakage
Our engineers use Thermal camera and extensive knowledge of buildings to help find leakage areas within the building and can advice of these.

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
Part E
Resistance of the Passage of Sound

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Company No. 06728970
In Area D
SAP Calculation in Dagenham, Building Thermal Imaging Survey in Dalbeattie, Sustainable Homes in Dalkeith, Part G in Dalry, Commercial Building Thermal Imaging Survey in Dalton in Furness, Energy Statement in Danbury, Domestic Heat Loss Survey in Darlington, BS4142 in Dartford, Ventilation Testing Equipment in Dartmouth, Commercial Building and Room Acoustics in Darwen, Commercial Code Air Infiltration Survey in Datchet, CEPC in Daventry, BREEAM in Dawlish, FRA in Deal, Domestic House Leakage Testing in Defford, Part F Ventilation Certificate in Denbigh, TER DER Calculations in Denny, Commercial Fan Pressure Testing in Denstone, Air Tightness Testing in Denton, Commercial Thermal Imaging Inspections in Deptford, Sustainability Statements in Derby, Sound Testing HMO in Dereham, Commercial P402 Asbestos Survey in Devizes, Part E in Dewsbury, SAP Extension Assessments in Didcot, Commercial Sustainability Statements in Dinas Powys, Domestic Part E Sound Testing in Dingle, Sound Testing Part E in Dingwall, Domestic BS4142 in Dinnington, New Build EPCs in Diss, SAP Extension Calculation in Dobwalls, Air Integrity Testing in Dolgellau, Commercial Party Wall Sound Insulation Testing in Dolla, Sustainability Statement in Donaghadee, Thermal in Doncaster, Domestic Thermal in Dorchester, Air Tightness Testing in Dorchester, Sound Testing HMOs in Dorking, Acoustic Insulation Testing in Dornoch, BB93 Acoustic Design of Schools in Douglas, New Build EPC in Douglas, Domestic Air Tightness Testing in Dover, Air Pressure Testing in Downham Market, Industrial Noise Surveys in Downpatrick, Water Calculation in Downton, Fire Risk Assessment in Drayton, Commercial BS8233 Noise Assessment and Noise Survey in Driffield, Commercial Noise Impact Assessments in Droitwich, Domestic Carbon Emission Calculations in Dromore, Domestic Part E Sound Insulation Testing in Dronfield, BREEAM HEA03 Thermal Comfort in Droylsden, Energy Audits in Drymen, Commercial Asbestos Management Survey in Dudley, Energy Audits in Dudley, Building EPC in Dufftown, SBEM Calculation in Dukinfield, Domestic Sound Testing Environmental Noise in Dulverton, Commercial Energy Audit in Dulwich, Heat Loss Surveys in Dumbarton, Commercial Sound Testing Environmental Noise in Dumfries, Commercial Sound Testing Part E in Dunbar, Domestic Part E in Dunblane, SBEM Calc in Dunchurch, Party Floor Sound Insulation Testing in Dundee, Part G Water Calculations in Dunfermline, Domestic BB93 Acoustic Design of Schools in Dungannon, Room Integrity Testing in Dungeness, Code Air Infiltration Survey in Dunhampton, Sound Testing Part E in Dunkeld, Thermal Imaging Inspections in Dunmow, BREEAM Credit Report in Dunoon, SBEM Calculations in Duns, Commercial Sound Testing Part E in Dunsfold, New Build Domestic EPC in Dunstable, Commercial Thermal in Dunster, Thermography Surveys in Dunwich, Non Domestic EPCs in Durham, Sound Testing in Dursley, SAP Calculations in Duxford, Commercial Air Tightness Testing in Dyce, SBEM Calculations in Dymchurch,