Keep Your Home Air Tight and Start Saving on Energy Bills Today
Our certified air-tightness testing quickly finds where heat is escaping, helping you cut waste, lower bills, and stay compliant with building regulations.
What Our Customers Are Saying About Us
EXCELLENT Based on 75 reviews Posted on Cal Lloyd-GriffithTrustindex verifies that the original source of the review is Google. BER assessment done by Mark, who was fantastic - extremely knowledgeable and very professional. Highly recommendedPosted on Tuhye GillanTrustindex verifies that the original source of the review is Google. Great communication, on time, friendly and nice to deal with.Posted on Enda TrenchTrustindex verifies that the original source of the review is Google. Very straightforward, stress free service. Keith came out to assess the house with minimal fuss and was always available to answer any questions. I would recommend this company.Posted on Patricia FarrellTrustindex verifies that the original source of the review is Google. Great service, very prompt, helpful and easy to deal with.Posted on Michele RidgwayTrustindex verifies that the original source of the review is Google. I was able to schedule an appointment quickly. The assessor arrived on time and did what he had to do efficiently. He was a nice guy who was able to answer my questions easily. The price for the job was fair.Posted on colin mullenTrustindex verifies that the original source of the review is Google. Very professional. Arrived on time, checked every room, doors, windows thoroughly.checked house exterior, Water and heating systems. Received BER in time frame advise by Kyle.Also happy with detail report of our BER rating .Overall very professional experience . From Lorna, Kyle highly recommend MD survey



Why Air Tightness Testing is Essential

Meet Irish Building Regulations
Under Part L of the Building Regulations, most new homes and commercial units must undergo air permeability testing to prove they meet strict airtightness standards. Without it, you risk costly delays in getting sign-off or securing your BER.

Lower Your Energy Bills
A leaky building envelope means your heating system works harder - and your energy costs climb. Improving airtightness keeps the warmth in, the cold out, and your bills down.

Achieve a Better BER
A tighter building directly improves your BER rating, increasing your property’s value, sustainability appeal, and long-term marketability.

Enjoy Greater Comfort & Air Quality
Good airtightness cuts out cold drafts, keeps temperatures stable, and supports healthy ventilation systems that improve indoor air quality.
What We Do
Our experienced technicians use calibrated blower door equipment to measure how airtight your building is, pinpointing exactly where heat is being lost.
For added insight, we can visually highlight leakage points, making it easy for you to target improvements.
You’ll get a clear, easy-to-read report showing your building’s air permeability and if it meets the standards for compliance and BER.
If improvements are needed, we’ll give you straightforward, practical advice so you can fix the issues and retest quickly.
We work around your build or fit-out timelines to avoid hold-ups.
How the Test Works

Preparation
We’ll advise exactly how to get your property ready, such as closing windows and sealing ventilation.

Blower Door Setup
We install a specialised fan system in an external doorway. This pressurises (or depressurises) the building so we can measure how much air is leaking through the envelope.

Identifying Problem Areas
We may use smoke pencils or thermal imaging to show you precisely where air is escaping.

The Results
You’ll receive a detailed report, typically on the same day, outlining your building’s air permeability figure in m³/h/m² and how it stacks up against Irish standards.
Who We Work With
- Homeowners & Self-Builders ensuring new houses or deep retrofits pass regulations and perform efficiently.
- Builders & Developers needing timely, compliant certification to keep projects on schedule.
- Architects & Engineers requiring verified data to back up their energy-efficient design
- Property Managers & BER Assessors who want accurate test results to support BER improvements.
FAQs
Yes. Under Part L, most new builds need to prove they meet air permeability standards. It’s also vital for achieving your BER.
For dwellings, it’s generally 5 m³/h/m² at 50 Pa. Many aim even lower for better BER scores and future-proofed energy bills.
Most tests take around 1-2 hours on site, depending on your building’s size and complexity.
No stress – we’ll pinpoint exactly where the leaks are, give you practical advice to fix them, and come back for a swift retest.