Air Tightness Testing for Self-Build Homes
Get your self-build over the line with accredited testing and clear, jargon-free guidance from enquiry through to certification.
Whether it’s your first self-build or you’ve done this before, Air Tightness Solutions provides dependable testing, practical preparation advice and fast certification to help you meet Building Control requirements with confidence.
Why self-builders choose Air Tightness Solutions
- Over 50 years of combined experience
- 10+ years delivering industry training
- ATTMA accredited engineers
- Short lead times and a responsive, reactive service
- Practical help preparing your property before the test
- Clear guidance if remedial work is needed before a retest
Air Tightness Testing That Works Around Your Build
Self-building is different from managing a construction site — it’s personal, it’s often your only project, and by the time you reach air testing, there’s usually a lot riding on the result. If you’re not from a construction background, the process can feel unfamiliar, especially towards the end of a busy build.
At Air Tightness Solutions, we take the time to explain what’s being tested, what result you need to achieve, and how to prepare beforehand. Our dedicated team works around your build schedule to help keep things on track.
From a straightforward detached home to a more complex eco-build, we provide a service designed around the way self-builders actually work.
Supporting Self-Builders Across the UK
We work with self-builders delivering a wide range of projects, including:
- Individual detached and semi-detached homes
- Timber frame builds
- ICF (insulated concrete formwork) homes
- SIPs (structural insulated panel) builds
- Passivhaus and other eco-build projects
- Barn and agricultural building conversions
Whether you’re testing a single plot or need support across a longer build programme, we can provide a consistent, reassuring service throughout.
Why Air Tightness Testing Matters
Air tightness testing is required to demonstrate compliance with Approved Document Part L of the Building Regulations. It’s typically one of the final steps before project completion or handover.
The test measures how much uncontrolled air escapes through the building fabric. A successful result helps confirm your home performs as designed in relation to:
- Energy efficiency
- Heat loss reduction
- Building performance
- Compliance requirements
- Long-term running costs
Because testing usually comes late in the build, a delayed or failed test can hold up your completion — so preparation matters.
Why Self-Builders Choose Air Tightness Solutions
01. We Understand Self-Build Timelines
Self-build project timelines shift constantly, often around trades, funds release or your own availability. We work with you to find testing dates that suit your build, with minimal disruption.
02. Reliable Nationwide Coverage
Wherever in the UK you're building, our nationwide service means you'll have one trusted testing provider from start to finish.
03. Fast Certification
As soon as your test is successfully completed, your certificate is with you quickly — nothing left hanging over your next milestone.
04. Clear, Jargon-Free Communication
We explain your results in plain terms, so you always understand what's happening and why.
05. Experienced, Approachable Engineers
Our engineers are used to working directly with homeowners as well as contractors, and take the time to talk you through the process on site.
Our Process
01. Initial Enquiry
Send us your project details, drawings or site information and we'll review your requirements.
02. Review & Quotation
We confirm your testing requirements, pricing and our availability.
03. Booking Confirmation
We arrange with you a suitable date and time for your test.
04. Site Attendance & Testing
One of our specialist engineers attends your site and carries out the air pressure test using calibrated equipment.
05. Results & Certification
Following a successful test, we issue your results and certification documentation promptly.
Who We Commonly Support
Our team regularly works with:
- Self-builders and individual homeowners
- Architects and designers
- Self-build project managers
- Timber frame and package build companies
- Renovators undertaking major extensions
- Passivhaus and eco-build clients
Whether this is your first project or you’ve self-built before, we have the experience to guide you through it.
Frequently asked questions
Looking for a Reliable Air Tightness Testing Partner?
Whether you’re just planning ahead or approaching completion on your self-build, Air Tightness Solutions can provide dependable testing, practical support and fast certification to help keep your project moving.
Request a quotation today and speak with our specialist team about your project.