Airtightness Testing in Essex
.jpeg)
Clear communication
Fast leak detection
Practical site experience
Fast Testing. Reliable Certification
Air tightness, air permeability, blower door or air pressure testing — whatever you call it, we’ve got you covered.
Specialists in failed tests & leak investigations
Next-day certificates
Practical construction experience
Local Testers
LOCAL ENGINEERS WORKING ACROSS ESSEX
Testing Services
Who We Help
From one-off self-builds to multi-plot developments and complex retrofit projects, we provide practical testing and clear certificates to keep projects moving.
Architects
Builders
Retrofit Contractors
Self Builders
Developers & Main Contractors
Building Consultants
Why Choose Us?
Built by people who have worked on site.
Before testing buildings, we worked as carpenters, bricklayers, builders and site managers. We understand how sites work, find issues quickly and explain practical fixes in plain language.
We know how sites work — and how to keep them moving.
We cover all of Essex
With engineers based in Essex, we provide air tightness, Part F ventilation, sound testing and thermal imaging across the county.
We regularly support projects in:
Colchester
Southend On Sea
Chelmsford
Basildon
Harlow
Rayleigh
Brentwood
Braintree
Clacton-on-Sea
Witham
Wickford
Grays
Billericay
From one-off self-builds to multi-plot developments, we provide practical testing support, clear advice and fast certificates to help keep your project moving.
Not sure whether we cover your site?
What Our Customers Say
N Blatch, Builder
Can't recommend John and his team more, super helpful. Explained everything clearly and then worked with me. Great service.
Impressed with the engineers attention to detail. I shall have no hesitation in recommending.
Real reviews from builders, self builders and retrofit tenants
Frequently Asked Questions
Where in Essex do you cover?
Whether you are in Chelmsford, Southend, Brentwood, Ugley, Fingringhoe or Steeple Bumpstead we cover the whole county.
What happens if my airtightness test fails?
We quickly find likely air-leakage issues and explain the fixes clearly. If your team can sort them while we’re on site, we’ll retest and aim to get the property passed that day
Can you help with other building tests?
Sound testing, Part F Ventilation and extraction fan testing. Equipped for ventilation airflow testing in line with applicable 2027 Part F guidance.
Can you work around our site programme and test multiple plots?
Of course. We have worked on building sites our whole working lives, so we understand programmes, site pressures and how to keep work moving.
Professional Schemes, Equipment & Trusted By
Ventilation competence: NAPIT Competent Person Scheme (CPS).
Testing equipment: FlowFinder MK2 powered-flow measurement, The Energy Conservatory, Retrotec and FLIR.
Trusted by builders, developers and contractors including Ardmore, Bouygues UK and Total Renovation.
Say Hello
Social Media
Get in touch to book a test, talk through your plans or ask a question. Need preparation tips or want to know how testing works? We’re always happy to help and pleased to hear from you.
0330 043 8801
