How quickly can you test a plot in Trafford?

Most Trafford bookings are tested within 3 working days; the ATTMA certificate is issued within 24 hours of a passing test.

What is the Part L target?

8 m³/(h·m²) at 50Pa is the absolute legal limit; SAP often demands 5 or lower for Trafford new-builds.

Do you test single plots in Trafford?

Yes — single plots and full developments across Trafford. Volume rates available for sites of 5+ plots.

Can I retest if a Trafford plot fails?

Yes — failed plots can be retested at a discounted rate after remedial works.

What's the Part L target?

8 m³/(h·m²) at 50Pa is the absolute legal limit; SAP often demands 5 or lower.

Can I retest if I fail?

Yes — we provide a remedial report and a discounted retest.

Air Tightness Testing Trafford From £250

What is air tightness testing in Trafford?

Air tightness testing — also called air permeability testing — measures uncontrolled air leakage through the envelope of a new dwelling. A blower door fan pressurises the building and the leakage rate is calculated in m³/(h·m²) at 50Pa. The result is mandatory under Part L of the Building Regulations and feeds directly into the SAP calculation. Trafford has seen significant new-build activity, particularly across modern apartments around Altrincham town centre, so our UKAS-traceable testers cover Trafford sites with rapid mobilisation.

Who needs air tightness testing in Trafford?

Air tightness testing is mandatory for new dwellings in Trafford under Part L. Typical bookings include:

New-build developers across Trafford (every plot)
Self-builders pre-completion in Altrincham, Sale, Stretford, Urmston, Hale, Bowdon and Old Trafford
Passivhaus and EnerPHit projects in Trafford
Commercial premises sub-500m² in M16–M17, M31–M33, M41, WA14–WA15

What's included

Blower door fan and pressure rig set-up
Pressurisation and depressurisation test
Leakage rate calculation in m³/(h·m²) at 50Pa
Smoke pencil leak detection
ATTMA Lodged certificate within 24 hours

How much does air tightness testing cost in Trafford?

Air tightness testing in Trafford starts at £250 per plot. Volume rates apply for sites of 5+ plots — common on Trafford new-build developments. Failed tests can be retested at a discounted rate, accompanied by a remedial report identifying the leakage paths.

How fast can you test in Trafford?

Most Trafford sites are tested within 3 working days of booking. Each plot takes 1–2 hours once the building is sealed and ready. The ATTMA Lodged certificate is issued within 24 hours of a passing test.

Trafford sites we cover

We test new-build sites across every Trafford postcode — M16, M17, M31, M32, M33, M41, WA14 and WA15 — and the wider Greater Manchester area (Manchester, Salford, Stockport, Wigan).