How quickly can you test a plot in Oldham?

Most Oldham 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 Oldham new-builds.

Do you test single plots in Oldham?

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

Can I retest if a Oldham 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 Oldham From £250

What is air tightness testing in Oldham?

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. Oldham has seen significant new-build activity, particularly across 1950s semis in Chadderton and Royton, so our UKAS-traceable testers cover Oldham sites with rapid mobilisation.

Who needs air tightness testing in Oldham?

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

New-build developers across Oldham (every plot)
Self-builders pre-completion in town centre, Chadderton, Royton, Shaw, Failsworth and the Saddleworth villages
Passivhaus and EnerPHit projects in Oldham
Commercial premises sub-500m² in OL1–OL9

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 Oldham?

Air tightness testing in Oldham starts at £250 per plot. Volume rates apply for sites of 5+ plots — common on Oldham 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 Oldham?

Most Oldham 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.

Oldham sites we cover

We test new-build sites across every Oldham postcode — OL1, OL2, OL3, OL4, OL8 and OL9 — and the wider Greater Manchester area (Rochdale, Tameside, Manchester, Bury).