Air Tightness Testing (ATT) in Manchester
Part L Compliant Air Tightness Testing for New Builds & Developments

Retrofit Right provides professional air tightness testing (ATT testing) for developers, builders and project managers across Manchester, Liverpool, Runcorn and North Wales.
We help ensure your building meets Part L building regulations, avoiding delays and helping you achieve compliance quickly and efficiently.
Fast turnaround appointments available to keep your project on schedule.
Air tightness testing (also known as an air permeability test) measures how much air leaks from a building.
It is a legal requirement under Part L Building Regulations for most new builds and some renovations.
The test:
Better air tightness = improved energy efficiency and lower energy costs.
We use industry-leading Pulse air testing equipment, which provides fast, accurate and non-invasive air permeability testing.
Unlike traditional methods, Pulse testing uses controlled air pulses to measure leakage, helping deliver reliable results with minimal disruption to your project.

You may need ATT testing in Manchster if you are:
We regularly work with:
Call RetroFit Right now or email richie@retrofitright.com.
To pass Part L, your building must meet specific air permeability targets.
We help you:
If your property fails, we can also:

We understand deadlines matter in construction.
Ideal for last-minute testing before building control inspections.

The cost of air tightness testing depends on:
We offer competitive pricing and discounts for:
Contact us today for a fast, tailored quote.