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Building and Construction

Energy conservation


​Commercial, public and industrial buildings account for nearly 20% of carbon emissions in the UK. Sealing the gaps around doors is one of the most cost effective ways to save energy in your building. Direct from the UK’s largest brush strip manufacturer, SUPERSEAL closes gaps around doors and openings on all commercial, industrial and residential buildings.


Uncontrolled airflow through gaps around entrance doors, windows, access floors, elevator entrances causes loss of heating and cooling energy and significantly reduces a building’s thermal performance. Sealing with Superseal helps to maintain air conditioned environments, keep foyer areas clean and prevent discomfort for staff, customers and residents alike.

Case Study

Superseal Air Leakage Tests

Independent tests undertaken by BSRIA showed Superseal brush strip to be up to 99% effective in blocking air leakage. The tests measured the sealing efficiency of Superseal brush strip across various gap sizes at static pressures ranging from 10 Pa up to 100 Pa.

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On the inside, SUPERSEAL is an effective cold smoke and acoustic seal for internal doors, operable walls and partitions. For residential and domestic use, our draught proofing products are approved BS7386:1990.

What do you want to seal?

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SUPERSEAL brush strip maintains an effective flexible seal around all types of roller doors, hinged, sliding and aircraft hanger doors, sealing irregular surfaces without impairing door movement.

The flexible and hardwearing filaments reduce draughts, save energy and seal against the intrusion of rodents, dust and dirt.

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Brush strip seals form an integral part of data cabinet and computer room air manganagement. By closing the gaps around cable entry in cabinets and raised access flooring, brush strip seals reduce wasted cooling energy and improve equipment efficiency whilst maintaining free access to cabling.

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BBA approved cavity wall brushes divide the wall between terrace and semi-detached properties to prevent spillage of fibre and bead cavity wall insulation material into adjoining properties.

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Not all openings in the fabric of your building are immediately obvious, but can be just as significant. SUPERSEAL closes gaps around sliding roofs, eaves and ducting to protect against uncontrolled airflow, debris and pest intrusion. Don’t forget about those letterboxes and loft hatches as these are also a source of valuable heat loss.

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Oh and did we mention? SUPERSEAL is durable, simple to install and available from stock for next day delivery. If you need something slightly different, we can quickly tailor it with custom lengths, brush heights, fixing holes and carrier finishes, making it easier for you to get the job done.

If you can’t find what you need from our standard range, we’ll design something for you. Simply ask and we’re happy to help.