Innovative coatings for smarter insulation and protection
TopThermltd offers a full range of Bloktherm thermal and anti-moisture coatings, designed for different surfaces, conditions and needs. All products use advanced ceramic microsphere technology – providing powerful insulation, moisture control, and durability in a thin, easy-to-apply layer.
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TopTherm UK
Bloktherm IN
Versatile insulation for interiors and exteriors
Bloktherm IN is a universal thermal coating suitable for both internal and external walls, ceilings and facades. It creates a reflective barrier that reduces heat loss and improves thermal comfort – all in just 1–3mm.
It’s breathable, safe, fire-resistant and ideal for residential, commercial and industrial buildings.
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TopTherm UK
Bloktherm +250
High-temperature protection for industrial surfaces
Bloktherm +250 is designed for applications where surfaces are exposed to high heat – such as pipes, tanks, boilers and metal structures. It provides thermal insulation and surface protection up to 250°C, reducing energy loss and protecting equipment.
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TopTherm UK
Warm Coating
Thermal and decorative interior finish
Warm Coating combines thermal insulation with an elegant decorative effect. Designed for internal walls and ceilings, it delivers a “warm-touch” feel and improves comfort, especially in cooler rooms or flats with cold external walls.
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TopTherm UK
Window Edge
Window edge and frame insulation
Okno is a highly specialised solution for insulating window edges, frames and reveals – areas often overlooked in traditional insulation. It reduces heat loss and condensation build-up around windows, without damaging appearance or function.
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Energy Generation
what I customers think of our products
Honesty, integrity & experience
“Outstanding”
I applied Bloktherm to the exterior walls of my house last autumn, and it’s made a huge difference. The walls used to feel cold and we had issues with damp patches during winter – now everything stays dry and the house holds heat much better. The coating went on easily and looks great too. TopThermltd were really helpful throughout the process.
Mark Smith – Bristol
“Superb”
I run a small construction company and we used Bloktherm IN on an older brick property where space was limited. The client was amazed at how much warmer the house felt without losing any room space. It’s now a go-to solution for us when we need quick, clean insulation upgrades.
Chris Johnson – Leeds
“Top Products”
We applied BlokDRY in our bathroom after struggling with damp spots for years. Since then, no mould, no condensation – just dry, clean walls. I was sceptical at first, but the result really speaks for itself. I’ll definitely be using it again in other parts of the house.
Tom Wood – Newquay
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