Looking for reliable air tightness testing? We provide comprehensive air tightness testing services across the UK, ensuring your building meets regulations and maximises energy efficiency. For fast and reliable pulse and blower door testing throughout Bristol and the surrounding areas, look no further.

Our air tightness testing service tells you exactly how airtight your building is. This can help you plan a decarbonisation strategy, identify ways to save energy and meet regulatory requirements. Our experienced local air tightness engineers work across new build, residential, commercial, retrofit, and passivhaus environments, so can provide whatever support you need to get the job done.

For new build projects, we can help you develop an air tightness strategy from the design stage through to completion. This will ensure that the air tightness barrier is monitored throughout the build phase and lead to the most energy-efficient outcome. It is important to keep air leakage as a priority throughout the build as some issues can be hidden as the build progresses, and are difficult to remedy.

For existing properties, our engineers can identify the causes of air leakage issues and advise on the best steps forward.

Find more detail on all assessment types here.

Book a Test

Our expert sustainability surveyors are a team of experienced, friendly, and knowledgeable professionals well-versed in building testing. Get in touch today for a free consultation or competitive quote.

Why work with us?

Experience

Our testing engineers have over 25 years of combined experience, with thousands of tests under our belts. There is not much we haven’t seen, meaning that we can provide on-site advice on every aspect of air tightness testing.

Quality

We consistently provide exceptional service to help clients pass their air test on the first visit, offering our knowledge to help them find leaks in their buildings and rectify any issues. If your property is unlikely to pass, we will advise on how to fix this.

Speed

Our Bristol office-based staff work hard to book all appointments as quickly as the delivery schedule allows. 95% of all tests take place within two weeks of the initial booking, with the majority of certificates provided within 24 hours of the site visit.

Pricing

Our rate card prices for all services are reviewed regularly, so we’re confident that you won’t find a better service for a better price anywhere else. If you think you’ve found one, we’ll either beat or match it.

Support

Navigating the complexity of energy efficiency, decarbonisation, and building regulation updates isn’t easy.

We’ve worked hard to explain a range of topics related to air testing in plain English to help non-experts get the information they need.

Get Your Air Tightness Testing Quote Today!

Get A Quote

Looking for a fast and reliable air tightness test in Bristol or nationwide?

Contact us today for a free quote and to discuss your specific project requirements. We offer competitive rates and prioritise fast turnaround times for all our clients.

We’ve worked with Building Energy Experts to support Part O compliance across our developments and have been consistently impressed with their service. Their team is proactive, knowledgeable, and always on hand to provide clear guidance throughout the design and compliance process. Their reports are thorough yet easy to digest, and their input has been instrumental in helping us meet regulatory requirements without compromising on design. The quality of their reporting and technical advice has made them a valuable partner to our team.

Sean Haplin, Technical Coordinator at Redrow Homes

We’ve been very impressed with Building Energy Experts on all of our developments. We have found them to be very responsive to our queries and always happy to accommodate any further requests. We recently had an instance of an Energy Consultant going AWOL and urgently required a replacement Energy Consultant. BEE were able to quickly provide a quotation and were appointed within the same day of our initial enquiry.

Their information is always clearly represented, whether that’s in their Sustainability & Energy Statements submitted for Planning or SAP Input Summaries supporting their Design SAPs.

I would without doubt, consider BEE, to be one of our preferred Energy Consultants.

Ryan Walker, Technical Manager at Woodstock Homes

Ambue work with Building Energy Experts across a number of clients across the South East. BEE’s assessors are capable and adaptable working across a range of homes and archetypes where they are thorough and diligent in their assessments. Stan’s easy and accommodating attitude puts Residents at ease to ensure they understand what he is doing to help improve the health and comfort of their home. Ambue will be working with BEE across a number of projects in 2025.

Rowley Maggs, Ambue

I had a very positive experience working with BEE from a site perspective very helpful and quick to respond when I asked a question, turn around of results was very good. All in all I would use them again, very good.

Dominic Kevill, Site Manager at Woodstock Homes – Air Tightness Testing

Building Energy Experts produced a Sustainability & Energy Statement to support our planning application for 20 homes in Engine Common. They worked with our technical team to identify measures that would help energy savings across the development reduce residual carbon emissions. Despite the technical nature of the topic, the report was clear and concise and well received by the Council’s climate officers. I would happily recommend the team to other developers.

Ashley Grant, Planning Manager at Cotswold Homes – Sustainability & Energy Statement

My house is drafty and hard to heat, it is difficult to get it above 17-18 degrees on cold days even if the central heating has been on for quite awhile. The team at Building Energy Experts were very professional, explained what they were doing as they went along. The assessment was very useful, they have identified areas of air leakage etc and quick wins I can make. It has helped me prioritise my budget. I would definitely recommend using Building Experts.

David Butler, Homeowner – Retrofit West Advanced Air Tightness Test & Thermal Imaging

Our Air Tightness Testing Case Studies:

home energy assessment survey air tightness test & thermography
Building Testing Thermographic Surveys Air Tightness Testing Ventilation Testing

Home Energy Assessment: Retrofit West, Bristol

View Case Study
Inside of a warehouse - commercial epc with air test case study / commercial air test bristol / commercial epc bristol
Commercial Decarbonisation Commercial EPCs Air Tightness Testing

Commercial EPCs & Air Tests: Avonmouth & Yate Warehouses, Bristol

View Case Study
Retrofit assessment case study
Retrofit PAS 2035 Retrofit Assessments

Building Testing & Retrofit Assessments: Value Optimised Retrofit

View Case Study
get IN TOUCH

Air testing plays a vital part in many building projects. Here’s a brief introduction to the most common variations: 

New Build Air Testing:

Residential Air Tightness Testing

All new dwellings need an air tightness test in order to calculate the dwelling emission rate (DER) as part of the mandatory SAP calculation process. This is normally done just before practical completion, with the result determining, in large part, what the final EPC rating of the building will be.

We also offer preliminary air tightness tests. Ensuring that all plots pass their final air tests on the first attempt can seem like a challenge, but it doesn’t have to be. An early test can provide valuable data on potential leakage points, enabling site-wide improvements before final testing ans so avoiding costly retests, schedule delays, and construction friction.

Building Testing Air Tightness Testing

Residential Air Tightness Checklist

Read Article

Commercial Air Tightness Testing

All new commercial buildings have needed an air leakage test in order to comply with building regulations since 2003. Beyond compliance, however, conducting air test throughout the construction process will help keep air leakage through the building fabric to a minimum. 

Our engineers are experienced in testing a wide variety of commercial properties (office blocks, accommodation blocks, schools, hospitals, industrial units, laboratories, etc.) and have a great understanding of finding any air leakage or heat loss areas of the building.

Existing Property Air Testing:

Retrofit Air Tightness Testing

Retrofit projects following the PAS 2035 framework with a risk pathway C require an air tightness test. Most retrofit assessors in the UK are not qualified air testers, meaning that air tightness testing has to be done by an additional supplier. We cross-train our staff so that they can undertake both assessments and air tests in a single visit, creating less disturbance for residents and reducing the overall cost of the project.

Passivhaus Air Tightness Testing

Also referred to as Passive House air tightness testing, or low energy air testing, these tests are designed to ensure the stringent standards set by the Passivhaus Institute are met.

The testing process is more complex, with multiple stages, and each project requires at least three tests along the design and build phases. 

Passive House blower door Air Test
Service

Passive House Air Tightness Testing

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Isolation Room Air Tightness Testing

This type of testing is undertaken in line with the technical standard BTS 03: Air permeability of isolation rooms which enables isolation facilities’ air permeability levels to be validated. Achieving low levels of Air Tightness is vital in controlling airborne infections. It helps rooms achieve the design pressurisation levels and flowrate levels during the commissioning process and reduces the risk of infection between the room and adjacent areas during normal operation and in the event of fan failure.

get IN TOUCH

For more information, take a look at our other specialist testing services, or contact our experienced team directly who can advise on the best approach.

Who We Work With

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