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Specialists in the application of mastic sealants

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Part L1A Regulations:

Topseal Sealants specialises in the testing of new buildings to meet Building Regulations (Parts L1A and L2A).

 

We also can test homes which are lived in to test where air loss is occurring.

Air Tight Testing

The 2010 Part L1A Building Regulations requires new dwellings to be tested for air-tightness to confirm the energy performance of new dwellings. From October 2010 it became clear that more properties are likely to need testing because untested plots will incur a 2 point penalty for non testing.

 

Importantly air tightness testing can prove that a dwelling meets specific standards in air permeability, providing an incentive for builders to ensure that the design is well considered and the build is of a high standard.

 

This means, amongst other things, reduced carbon emissions, reduced fuel bills and increased occupant comfort. This can be extremely beneficial to all houses and not just new builds and helps reduce household bills.

 

Our Promise:

Deliver a comprehensive air tightness testing service with no hidden extras with a focus to reduce the carbon footprint for all our clients.

 

To offer a professional service in which our air testers are BINDT registered. We aim to provide support and guidance to all our clients throughout our service.

 

We also pride ourselves in helping our clients to achieve ongoing improvement within the home through practical guidance and advice before during and after air tightness testing.

 

 

How it works:

  • Consultation is available before during and after testing

  • We calculate building envelope areas from architectural drawings

  • Air tightness testing to check compliance with Building Regulations Part L

  • Employing diagnostic testing methods to accurately pin point problem areas

  • An air tightness report is issued upon test completion for all our clients

  • A pass certificate will then be issued upon successful completion of the test

What if a test fails?

We will perform a smoke audit to determine the leakage areas and offer a re-test at a discounted price.

 

 

BINDT-L1-0450-2 BINDT-L1-0449-2

Maidenhead

Oxford

Areas Covered

Wotton

Watford

Luton

Hitchin

Welwyn Gardern City

Hemel Hempstead

Stevenage

Buckingham

Aylesbury

High Wycombe

Waddeston

Kempston

Clapham

Flitwick

Dunstable

Leighton Buzzard

Letchworth

Milton Keynes

Bedford

Beaconsfield

London