Built around planning, development and compliance decisions.
Use this page to understand when the service is usually needed, what evidence is reviewed and what information helps us quote accurately.
- Planning and regulator context
- Clear deliverables and next steps
- Linked services considered early
Air Tightness Testing supports building control and Part L compliance by checking building envelope performance.
When this service is used
Used for Building Regulations, Part L compliance, completion evidence and projects where building-envelope performance must be verified.
What the report normally includes
- Air tightness test scope confirmation
- On-site test and result evidence
- Diagnostic advice where a test fails
- Completion-ready reporting
- Recommendations for remedial sealing if required
What we need from you
Providing the right information at the start helps us confirm the scope, quote accurately and avoid back-and-forth once the work is underway.
- Site address and access details
- Dwelling or building type
- Target air permeability if known
- Build stage and readiness
- Required completion date
Useful to know before you enquire
Common questions
Do I need this for planning?
It depends on the site, proposal and local authority requirements. Send the planning wording or reference and we can advise.
Can I request this with other services?
Yes. Use the enquiry builder to add multiple services in one submission.
Related services
These services are often reviewed alongside Air Tightness Testing depending on the site, planning context and proposed development.
Send the right information first time.
Our custom enquiry builder asks service-specific questions so we can confirm the correct scope, identify linked services and avoid unnecessary delays.
Build one enquiry for this and any related services.
Submit site information, planning references and supporting documents once. We’ll review the scope and confirm what is required.