Air Tightness Testing

Improving the air tightness of a building by eliminating draughts is one of the most cost effective ways of improving energy efficiency, resulting in better BER, reduced heating bills and improved comfort level. We provide fast, accurate Air Tightness Testing at market leading prices, offering real value and expert service.

Call today on (086) 605 4736 or contact us online.

Fully Accredited Air Tightness Testing Service

Casey Energy Services is one of Ireland's leading Air Tightness Testing service providers. Our experienced and highly trained assessors will guide you smoothly through the process of Part L compliance, and provide expert advice. We offer a nationwide, fully accredited service.

Value And Expertise!

Our goal is to provide an cost effective, expert and efficient Air Tightness Testing service.

  • Fast, accurate assessment
  • Nationwide service
  • Expert advice
  • Market leading prices
  • Experienced, courteous and highly trained assessors

What Is Air Tightness Testing And What Are The Benefits?

An Air Tightness Test, also commonly known as an Air Leakage Test or an Air Permeability Test, is a test to determine the level of uncontrolled air flow, or air leakage, in a building. Air leakage can occur through gaps, holes and cracks in the fabric of the building, which are not always visible.

Reduced heating bills and a lower carbon footprint

Research shows that up to 50% of all heat loss in buildings can be due to air leakage and uncontrolled ventilation. Even with adequate insulation, air leakage can still be significant source of heat loss, resulting in higher heating bills and an increased carbon footprint.

Even though the Irish climate does not experience extremes in low temperature, we are exposed to to extremes in wind pressure, making Air Tightness Testing central to building energy efficiency. Just a few hours of air sealing with inexpensive sealants, can often reduce air leakage by 50% or more. This can result in a saving of 20% on heating bills.

Increased comfort level and a healthier work and living environment

Air Tightness Testing can help improve the acoustic and environmental comfort of a building. It can also reduce the volume of harmful pollutants and irritants entering a building, particles such as pollen, dust, insulation fibers, mildew and mould, that are typically drawn from under floor boards, the attic or directly from the outside.

Typical Areas And Causes Of Air Leakage In Your Home

The diagram below shows some the common causes and areas of uncontrolled air leakage in to and out of a typical home.

For users using a screen reader or text browser, the following is a list of typical areas and causes of air leakage.

Air leaking in to the house

  • Electrical outlets
  • Utility room vent
  • Outdoor water tap
  • Kitchen fan vent
  • Windows and doors
  • Chimney

Air leaking out of the house

  • Plumbing stack vent
  • Bathroom stack vent
  • Recessed lighting
  • Attic hatch
  • Chase

Frequently Asked Questions

Do I Need An Air Tightness Test?
Part L of the Buildings Regulations requires that an Air Tightness Test be carried out for all new buildings. The purpose of the test is to ensure that the Air Permeability Rating for the building meets the latest Building Regulation standards. The building cannot be handed over for occupancy without a valid Air Leakage Test Certificate.
How long does an Air Tightness Test take?
One of our assessors will visit the premises to carry out the test at a time best suited to you, and, depending on the size and complexity of the assessment, each visit should last no more than four hours.
How much does an Air Tightness Test cost?
The cost of an Air Tightness Test will vary depending on the size of the premises and the complexity of the test.
What happens if my building fails an Air Tightness Test?
We will be happy to provide a free consultancy service, advising you on all necessary remedial work.

Useful Air Tightness Tips

For improved air tightness and reduced heating bills, apply the following measures:

  • Seal gaps around windows and doors
  • Fill holes in external walls
  • Seal gaps where service pipes and cables pass through the building fabric
  • Ensuring there is good seal around the boiler flue pipes where they pass through the external wall and ceiling
  • Apply draught stripping between the attic hatch and frame
  • Seal around the edges of rooms and make good any gaps in the floor around service pipes