Air Pressure Testing

Air Pressure Testing Services for New Build Completion

Air tightness testing tends to land at the worst possible moment, right when a plot is close to completion and every other compliance task is queuing up behind it. We book it as part of the wider programme, not as an isolated appointment.

✓ SAP-linked reporting
✓ Multi-plot scheduling
✓ Elmhurst-approved testers
✓ Nationwide site coverage

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Air pressure testing services for new build completion

Where Air Tightness Testing Fits into Your Build Programme

Air pressure testing services rarely sit in isolation on a build programme. The result usually needs to slot into a SAP calculation, a final EPC, and a completion certificate all at once.

The timing matters because the test can identify air leakage that needs attention before a dwelling is ready for handover. Left too late, air leakage testing becomes the thing holding up plot completion rather than a routine step in the process. Booked with the right lead time, it gives the site team an opportunity to address issues without disrupting the wider programme.

The test also needs to happen at the right stage of construction. The building fabric should be sufficiently complete for the result to reflect the finished dwelling, while there should still be scope to investigate and address significant leakage if required.

EPC Experts treats air permeability testing as part of the wider handover route, not a standalone appointment, so the result gets used properly once it's issued to the site team. This approach helps keep testing aligned with the information needed for SAP, EPC and completion requirements, rather than leaving the result disconnected from the rest of the compliance process.

What Proper Air Leakage Testing Protects You From

A test booked at the right stage does more than produce a number. It protects the completion timeline that sits around it.

Fewer surprises near practical completion

Testing early enough in the programme leaves room to fix an issue before it threatens a handover date already agreed with a buyer.

Evidence that supports SAP alignment

The result feeds directly into final SAP calculations, so airtightness and energy performance figures match rather than conflicting later on.

Remedial work costs less when caught early

Addressing an airtightness issue before finishes go in is far cheaper than reopening completed work after the fact.

A clearer picture for multi-plot sites

Phased developments get a consistent testing schedule across plots, rather than each unit being treated as a separate, disconnected job.

One less unknown for site management

Contractors get a definite answer on build quality rather than an assumption carried through to completion week.

A result that connects to the final EPC

Once testing is done, the outcome feeds directly into the new-build EPC rather than sitting as an unconnected certificate on file.

Air Permeability Testing Cover by Project Type

New build air testing varies from a single plot to a large phased site, and the testing schedule reflects that difference rather than a fixed template.

Single plot new builds

One-off dwellings get a straightforward booking, timed against the individual build programme rather than a wider site schedule.

Phased and multi-plot developments

Larger sites get a coordinated testing schedule across plots, reducing the number of separate site visits contractors need to arrange.

Self-build projects

Self-build clients get the same airtightness testing process as a developer, adjusted for a single-property timeline and site access.

Conversion and change-of-use projects

Residential conversions typically need testing as part of the same compliance route as new build, confirmed during scoping before booking.

Sites needing SAP coordination

Where SAP Calculations are already booked with EPC Experts, testing timing gets coordinated so results feed straight into the same file.

Why Developers and Contractors Choose EPC Experts

New build compliance has more moving parts than most other instructions. Here's what keeps this one from becoming another thing to chase.

Testing scheduled around the build, not the diary

We confirm project stage and readiness before booking, rather than turning up before the site is actually ready for testing.

Results connected to SAP and EPC work

Where relevant, the outcome feeds straight into SAP alignment and final EPC issue, rather than sitting as a disconnected report.

Multi-plot coordination that actually works

Phased sites get one point of contact managing the schedule across plots, instead of separate bookings for every unit.

Elmhurst-accredited testing you can rely on

Accreditation behind every test supports air tightness compliance when building control or a warranty provider queries the evidence.

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How Building Air Testing Gets Booked and Delivered

The process runs the same whether it's a single plot or a larger phased development requiring building regulations testing across several units.

Confirm the project stage

We check whether the instruction covers a one-off dwelling, a phased site or a broader completion programme before booking anything in.

Check site readiness

Timing matters more than almost anything else here, so readiness and practical site access get reviewed before the visit is confirmed.

Test, report and connect onward

The result is issued alongside guidance on how it feeds into SAP alignment, final EPC issue or wider completion planning.

Book Your Air Pressure Testing Before Completion Gets Tight

The closer a plot gets to handover, the less room there is to fix a problem the test uncovers. Share the dwelling type, project stage and deadline, and we'll help position the testing correctly within your compliance route.

Multi-plot sites get the same clear scheduling as a single dwelling.