TopTherm LTD

Smarter Insulation, Smaller Bills.

Trusted handyman services

We are exclusive distributor of Bloktherm in the UK.

Seals Bridges.
Saves Energy.

Bloktherm creates a seamless thermal barrier that seals gaps and weak spots in your walls. Just a thin 1–3mm layer helps retain warmth inside, reducing heat loss and cutting down your energy bills – without the need for bulky insulation.

Eliminate Damp
and Mould

Thanks to its moisture-resistant properties, Bloktherm protects your home from damp and mould. It’s the ideal solution for kitchens, bathrooms, and cold spots – helping you maintain a healthier living environment all year round.

Just 1–3mm Instead of 10cm of Foam

With Bloktherm, you don’t need 10cm of foam to stay warm. Our ultra-thin coating delivers outstanding thermal performance in just 1–3mm – saving space, time, and money while keeping your interiors comfortable.

Smarter Insulation. Smaller Bills.

Welcome to TopTherm ltd

We bring you the next generation of thermal protection: ultra-thin coatings that significantly reduce heat loss, prevent damp and mould, and lower your energy bills – all in just 1–3mm of material.

Forget bulky renovations. Bloktherm gives you a smarter, cleaner, and more efficient way to insulate your home or business – perfectly suited to the UK climate.

Our products

Thermal Insulation Coating for Window Recesses

BLOKTHERM WINDOW – Insulating Coating for Window Recesses


Thermal protection for cold window reveals. Prevents heat loss, condensation, and mould.

£51.97 – £259.85

Select options This product has multiple variants. The options may be chosen on the product page

WARM COAT – Thermal Shell Coating

BLOKTHERM Warm Coat – Thermoactive Insulating Paint


Energy-saving, breathable coating that warms up cold walls and protects against mould.

 

£51.97 – £1,039.40

Select options This product has multiple variants. The options may be chosen on the product page

BLOKTHERM +250 – High-Temperature Thermal Insulation Coating

BLOKTHERM +250 – High-Temperature Insulation Coating


Durable, breathable protection for surfaces up to +250°C. Ideal for pipes, tanks, steel, and walls.

£53.76 – £1,127.40

Select options This product has multiple variants. The options may be chosen on the product page

BLOKTHERM IN – Interior Thermal Insulation Coating

BLOKTHERM IN – Interior Thermal Insulation Coating


Smart, breathable protection against heat loss, condensation, and mould.

£40.97 – £819.40

Select options This product has multiple variants. The options may be chosen on the product page

UK Climate-Ready

Bloktherm improves thermal efficiency and protects against condensation, thermal bridges,
and mould – common issues in British buildings.

About the Bloktherm System

Advanced insulation. Ultra-thin. Powerful results.

Bloktherm is a revolutionary thermal insulation system based on advanced ceramic microsphere technology. Applied like a paint, it forms a thin, breathable coating that reflects heat, blocks moisture, and protects surfaces – all in just 1–3mm.

Whether you’re dealing with cold walls, condensation, or rising energy costs, Bloktherm provides an effective, modern solution that works with virtually any surface – from brick and plaster to metal, wood, and glass.

No bulky foam. No disruptive renovations. Just a smarter way to insulate.

Where Bloktherm
Works Best

Versatile. Reliable.
Ready for any surface.

Bloktherm adapts to a wide range of applications – from everyday home improvements to demanding commercial and industrial projects. Its thin, flexible coating bonds easily with many materials and surfaces, offering insulation and moisture protection exactly where you need it.

  • Interior & exterior walls

  • Ceilings and roofs

  • Metal, glass, wood, concrete

  • Pipes, radiators, tanks

  • Residential, commercial & industrial buildings

Why TopTherm ltd?

6 smart reasons to insulate with us.

Thinner, Smarter Insulation

Just 1–3mm replaces up to 10cm of foam.
Bloktherm offers powerful thermal protection in an ultra-thin layer. Say goodbye to bulky materials and reclaim valuable space – without sacrificing performance.

Reflects, Not Absorbs

Smarter technology that keeps heat inside.
Unlike traditional insulation, Bloktherm reflects heat back into your rooms. The result? Cosier interiors and less wasted energy – all year round.

Healthier Living Environment

Fights moisture, mould and bacteria.
Bloktherm helps prevent condensation and inhibits mould growth, supporting a cleaner and healthier home – ideal for allergy sufferers and families.

Kind to You and the Planet

Eco-friendly and non-toxic.
Our coatings are water-based, solvent-free and safe for your household. Plus, they reduce your carbon footprint by improving energy efficiency.

Easy, Fast Application

No need for messy renovation.
Bloktherm can be applied like paint, directly onto walls, ceilings or surfaces. It dries quickly and requires minimal disruption – perfect for retrofits.

Proven Across Europe

With a track record of success across Europe, Bloktherm is now available in the UK – bringing real-world results to British buildings.

We’re here to help

Got a question about Bloktherm?
Whether you’re planning a project, comparing insulation options, or just want honest advice – our team is here for you.


Let’s talk about the smartest way to protect your property.

Articles from the Insulation Experts

ARTICLES, NEWS, MANUALS

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Do you have any questions?

“Outstanding Work”

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 S. – Bristol