Building compliance,
handled end to end.
27 services across testing, calculations and planning — delivered by one accredited team, with fixed prices quoted upfront and nationwide coverage. Not sure what you need? Try the Services Finder.
Testing & Inspection
On-site testing and inspection that proves your build performs — air tightness, sound, ventilation and the specialist surveys Building Control asks for.
Air Pressure Testing
Air tightness testing for dwellings & non-dwellings
From £95Sound Insulation Testing
Measure noise transfer through building fabric
From £375Ventilation Testing
Air flow compliance with Part F regulations
From £45Asbestos Surveys
Check for Asbestos Containing Materials (ACM)
From £175Retrofit Assessments
PAS 2035 assessments for funded energy upgrades
On RequestSmoke Shaft & AOV Testing
Air tightness testing for smoke ventilation shafts
On RequestBorescope Inspections
Non-destructive cavity & wall void inspections
On RequestLegionella Risk Assessments
Water system surveys for ACOP L8 compliance
On RequestMVHR Commissioning
Airflow measurement & balancing for Part F
On RequestFire Risk Assessments
Fire Safety Order compliance for commercial & communal areas
On RequestEnergy & Calculations
The calculations that demonstrate Part L compliance and produce your EPC — SAP, SBEM, water, thermal bridging and the Home Energy Model.
SAP Calculations
Energy performance for new dwellings & extensions
From £75SBEM Calculations
L2A & L2B SBEM for new builds & extensions
From £150U-Value Calculations
Thermal transmittance of walls, floors & roofs for Part L
On RequestEPC
Energy Performance Certificates on completion
On RequestWater Calculations
Part G water consumption predictions
From £10Condensation Risk Analysis
Surface condensation (f-factor) risk to BR 497
On RequestHome Energy Model (HEM)
New-build energy assessment for the Future Homes Standard
On RequestThermal Bridging Calculations
Psi-value junction calculations to BR 497
On RequestBackground Ventilation Calculations
Part F trickle vent equivalent-area sizing
On RequestOverheating Assessments
TM59 & Part O overheating risk analysis
On RequestDesign & Planning
Reports and design work that get you through planning and Part O — energy and sustainability statements, the London Plan, acoustic design and overheating.
Energy Statements
Meet local planning authority energy standards
From £350London Plan
Follow the London Plan's three-point strategy
From £495Acoustic Design
Pre-completion acoustic design & consultancy
On RequestCIBSE TM59 & TM52 Assessments
Dynamic overheating modelling for Part O & planning
On RequestSustainability Statements
Policy-compliant statements to validate planning
On RequestNoise Surveys
Environmental noise surveys for planning (BS 4142 / BS 8233)
On RequestRegulation 25A Reports
High-efficiency alternative systems analysis
On RequestMore ways we can help
Specialist surveys, acoustic design and certificates that sit alongside our core services.
Energy & Calculations
Energy Assessments
Building Surveys
Not sure what you need?
Answer a few questions and the Services Finder will tell you exactly which tests and calculations your project requires.
Want a price first?
See guide pricing for every service in one place, then send your drawings for an exact fixed-price quote.
See the work
Hundreds of completed projects across the UK — air tests, SAPs, sound testing and full compliance packages.
Tell us about your project.
Send your drawings and we'll confirm exactly which services you need, the price, and the earliest date we can start.