Building Tests,
Calculations &
Compliance — done properly.
Air testing from £95. Same-day certificates. ATTMA-accredited engineers. 377+ five-star reviews. No obligation quote in 60 seconds.
15 yrs
& 10,000+ Tests Done
377+
Five-Star Reviews
£95
Air Tests From
Same Day
Certificate In Your Inbox
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Not sure which tests you need?
Find out in 30 seconds.
Answer three quick questions and we'll tell you exactly which assessments, tests and certifications apply to your project — in plain English.
Compliance services, end to end.
18 services across testing & inspection, energy & calculations, and design & planning — one provider for the whole building-regulations journey, nationwide.
Testing & Inspection
8 servicesAir Pressure Testing
Air tightness testing for dwellings and non-dwellings.
Sound Insulation Testing
Measure how much noise travels through the building fabric.
Ventilation Testing
Confirm air flow meets Part F of the Building Regulations.
Asbestos Surveys
Identify any Asbestos Containing Materials (ACMs) on site.
Retrofit Assessments
PAS 2035 assessments for funded domestic energy upgrades.
Smoke Shaft & AOV Testing
Air tightness testing for smoke ventilation shafts.
Borescope Inspections
Non-destructive inspection of cavities and wall voids.
Legionella Risk Assessments
Water system surveys for ACOP L8 compliance.
Energy & Calculations
7 servicesSAP Calculations
Energy performance for new dwellings and extensions.
SBEM Calculations
L2A and L2B SBEM for new builds and extensions.
U-Value Calculations
Thermal transmittance of walls, floors and roofs for Part L.
EPC
Energy Performance Certificates issued on completion.
Water Calculations
Predict water use in line with Part G of the Building Regulations.
Condensation Risk Analysis
Surface condensation (f-factor) risk assessed to BR 497.
Overheating Assessments
TM59 and Part O overheating risk analysis.
Design & Planning
3 services*Please note that this is a guide price only — prices may vary depending on project size. Please contact us for an accurate quote.
Every service comes with more.
Price is the start — not the finish. Each service includes advice, diagnostics and re-runs so you're never left stuck.
Air Testing
- Unlimited re-tests within specified timeframe
- Full diagnostics and sealing advice
- Video diagnostics if a test fails
SAP / SBEM
- Free Dashpivot app
- Unlimited specification revisions
Sound Testing
- Help you diagnose the issues if failed
- Help specify solutions if failed
Overheating (TM59)
- Advice on which method is best
- Multiple recommendations to pass — per TM59
- One free re-run of TM59
Common concerns, addressed
Cost
Clear value up front — advice, re-runs and diagnostics included. No hidden or extra fees.
Project deadline
Working to a deadline? Tell us — we'll prioritise your project.
Testing timing
If a cancellation opens up, we give you a call to fit you in sooner.
Do I actually need it?
Compliance is a legal requirement. The earlier in the project you start, the easier it is.
Three steps to compliance.
Our streamlined process removes the complexity from building regulations. Clear, predictable, and efficient.
Request a Free Quote
Tell us about your project and let us know how we can help.
Work In Progress
Leave our expert team to complete works and feedback to you accordingly.
Job Done
Receive your certification. Rate and review.
What our clients say.
See our 377+ reviews on Trustpilot. Here's what our clients say about working with UK Building Compliance.
“First class service from start to finish. Over the course of my two year build UK Building Compliance were always prompt with their response and made the whole process very smooth.”
Laurence Buck
Verified Review
“Absolutely amazing service provided!! We urgently needed a SAP assessment it was sorted within a week. I can't thank everyone enough for helping us... special thanks to Beth, Melissa and Will for a seamless hassle free service.”
Lisa Hickman
Verified Review
“Exceptional service at a fair price! Quick efficient communication, understood exactly what I needed to satisfy local building control and then made the process easy. I didn't have to chase them, was very clear about timescales and delivered ahead of time.”
Rich B
Verified Review
“After being repeatedly let down by other energy companies, we got in touch with UK Building Compliance to perform the calculations and energy ratings for our new build coffee shop. Throughout, they have been helpful, professional & efficient.”
Fleur Hall-Lyon
Verified Review
“Excellent service! The team were knowledgeable, efficient and easy to work with. Our air tightness test was booked quickly and the results came through the same day. Would highly recommend.”
Chris Tanner
Verified Review
“We use UKBC for all our SAP calculations and EPC ratings. Always reliable, always on time, and the team genuinely understand what builders need. Top marks.”
Martin Reid
Verified Review
Your questions, answered.
We know what you're thinking before you pick up the phone. Here are the answers.
"What if I fail?"
You're not left stuck. Every test includes full on-site diagnostics to show you exactly where the leakage is, sealing advice before we leave, and unlimited re-tests within the specified timeframe. If a test fails, we run video diagnostics to track down harder-to-find leaks.
"How fast can you come out?"
We have ATTMA-accredited engineers based across the UK. Most tests are booked within the same week. You get your certificate the same working day you pass.
"Are you actually qualified?"
ATTMA-accredited, 15 years in business, 10,000+ tests completed, and 377+ five-star reviews. We work with Lidl, Bupa, KFC, M&S, and hundreds of independent developers.
"How much will it cost?"
Air testing from £95, SAP calcs from £75, water calcs from £10. We quote fixed prices upfront — no hidden fees. Send us your project details and get an exact price in 48 hours.
Insights & guidance.
Practical advice on building regulations, compliance and testing — straight from our team of experts.
Part O – Important Factors to Consider
Key considerations for applying Approved Document O (overheating) — when the Simplified Method falls short and a CIBSE TM59 Dynamic Thermal Model is required.
Thermal Bridging & SAP
How thermal bridging and PSI values affect SAP calculations, why default y-values often push buildings out of Part L compliance, and when bespoke calculations are required.
Air Tightness & Air Pressure Testing in accordance with the Passivhaus Standard
What the Passivhaus airtightness standard (n50 ≤ 0.6 ach @ 50 Pa) requires, how to achieve it, and the three-stage test programme that gives the best chance of certification.
The site readiness brochure.
Everything you need to prep for your building compliance tests — packed into one free guide. Used by 2,000+ builders and developers across the UK.
- Air testing preparation checklist
- Common fail points & how to fix them
- Building Regulations quick-reference
- Cost-saving tips from 15+ years in the field
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UKBC Site Readiness Brochure
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Every question you're thinking.
We've heard them all — 10,000+ tests and 15 years in the game. Here's the straight answer to each one.
Still Got a Question? Ask Us Why can't I just use the cheapest tester I find on Google?
You can. About 1 in 5 of our clients come to us after doing exactly that — because the cheap tester didn't prep them, didn't flag issues before the test, and they failed. A failed test costs you contractor downtime, rebooking delays, and a builder chasing you for standing time. Our test starts at £95 and comes with a site-readiness checklist, on-site diagnostics, and sealing advice so you know what to do next — whether you pass or not.
What if we fail the air test?
You're not left guessing. Our tester carries out full on-site diagnostics, points out exactly where the leakage is, and gives you sealing advice before they leave. Often a five-minute fix is enough. If a re-test is needed, you get unlimited re-tests within the specified timeframe — and if the first test failed, we'll run video diagnostics to track down trickier leaks.
We've never needed building compliance help before — do we really need it now?
Building Regs have changed more in the last 3 years than the previous 15. Part L alone got a major overhaul. What passed in 2021 won't pass today. We see experienced builders get caught out every week — not because they're bad at their job, but because the goalposts moved. One phone call with us before you start saves you from finding out the hard way at sign-off.
How quickly can you get to site?
Typically within 48 hours across the UK. We've done same-day emergency tests when a client's completion was on the line. When you fill in the quote form, we'll confirm your earliest available slot straight away — no chasing, no waiting a week for a callback. Your project timeline matters more to us than filling a diary.
Can't our architect or builder just handle the SAP calcs and energy stuff?
Some can. Most can't — and the ones who try usually submit something that Building Control kicks back, costing you 2-4 weeks. We've processed thousands of SAP, SBEM, and energy calculations. We know exactly what each local authority wants to see and in what format. Your architect designs the building. Your builder builds it. We make sure it gets signed off — cleanly, and with unlimited spec revisions if tweaks are needed.
How much is this actually going to cost me?
Air tests from £95. SAP calcs from £75. Water calcs from £10. We publish our starting prices because we've got nothing to hide. Fill in the 60-second quote form and you'll get an exact price for your project — no ballpark, no 'it depends' waffle. Compare that to the cost of a failed test (easily £1,000+ in delays) or a rejected SAP submission (weeks of back-and-forth). The compliance is the cheap part. The mistakes are expensive.
We're mid-build — is it too late to bring you in?
No. In fact, most clients call us mid-build. But here's the thing: the earlier you call, the less it costs. If we review your plans before the plaster goes on, we can flag air-tightness issues that take 10 minutes to fix. After plastering? That same fix takes a day and costs 10x more. Wherever you are in your build, call us today. We'll tell you exactly what needs doing and when.
Get your quote & earliest test date
60 seconds to fill in. No obligation. We'll get back to you within 48 hours with your exact price and earliest available slot.