Save Valuable Space
Upgrade your insulation without bulky layers, so you keep more room space and avoid reducing usable floor area.

Upgrade your insulation without bulky layers, so you keep more room space and avoid reducing usable floor area.
Help make cold rooms warmer and more comfortable, especially in hard-to-treat areas like window reveals and lofts.
A smart choice for period and older homes where walls are difficult to insulate and every millimetre matters.
Improve insulation while keeping original details, finishes and character features in place.
Can be cut to fit tricky spaces and unusual details, making it easier to insulate awkward areas.
Helps support a warmer internal surface, which can reduce the chance of condensation in vulnerable areas.
Designed to deliver 50 year continued thermal performance, providing reliable thermal performance.
Get expert advice, sample requests and U-value support to help you choose the right Spacetherm solution for your home.
Architect Niall Hedderman of Real Life Architecture explains the benefits of using Spacetherm® and compares it to traditional insulation like PIR and Mineral Wool, highlighting its technical and cost advantages.
“Spacetherm® is made using aerogel. It is hydrophobic and vapour-open, so it can be fixed directly onto solid walls while allowing them to breathe, helping prevent dampness and mould behind the insulation. It is also likely one of the thinnest and most thermally efficient insulation options currently available in the UK, although at a higher cost.”
Upgrade your home’s comfort and efficiency with Spacetherm WRB, the ultra-thin insulation board designed specifically for window reveals.
Why choose Spacetherm WRB?

Our products are backed up by a dedicated team of technical experts, able to assist at every project stage from pre-planning to on site.
We offer CAD detail reviews, installation guidance, condensation risk analysis, WUFi calculations, U-Value calculations, ground gas system designs, telephone support & more. Our products also have a range of BIM Objects & Performance Specifications.

“The house has single-skin Bath stone walls and original lime finishes that need to breathe, so standard insulation was not suitable. Other options would have taken up too much room and meant altering door frames and window reveals. Spacetherm® Multi gave us a slim, breathable solution that improved thermal performance while helping protect the character of our historic family home.”

“Our living room has solid external walls and original features, including cornicing, fireplaces, radiators, and window surrounds, which standard insulation could have disrupted. Spacetherm® WL is super thin yet insulating, and easy enough to install by myself. It meant we could improve warmth without losing valuable space or damaging the features that make the house special.”

“The solid walls caused heat loss in winter and held too much heat in summer, but most insulation options were too thick for the property. At just 13mm, Spacetherm® WL fitted neatly within the cornices and worked well with the uneven walls. We were very pleased with the results, and the A. Proctor Group were extremely helpful with questions from us, our architect, and our builder.”

“Before the improvements, some rooms took a long time to heat and maintaining comfort was a real challenge and significantly increased our energy bills After installing Spacetherm® WL as part of the upgrade, the rooms warmed up much faster and stayed comfortable even in cold weather. Its slim 13mm profile was especially valuable in a London home where space is limited.”

“The existing concrete floors made the place cold, but breaking up the original slabs is costly and disruptive. Spacetherm® Multi improved thermal comfort without really raising floor height or removing existing features. Its slim, vapour-open design allowed the floor to breathe, helping reduce mould concerns. The A. Proctor Group team were also very engaged and supportive.”

“The bathroom was freezing, but traditional insulation reduced floor space and bathroom furniture choices. Its thinness, vapour-open performance, and simple installation made it a practical solution for an older home. The company’s technical and sales teams were responsive and helpful throughout. Every time I submitted a different U-value calculation, I got a prompt reply.”
Our team is here to assist and make things easy for you, whether you need technical support, sales support, or help with where to buy Spacetherm. You can also get in touch via the webchat below or send us an email, and we’ll help you take the next step with confidence.