From loft rolls and pipe lagging to radiator reflectors and window film, insulation products slow the heat escaping your home. They range from quick DIY wins to bigger projects with strong long-term payback.
Why home insulation matter
A poorly insulated home leaks heat continuously, so the boiler runs longer for the same comfort. Targeted insulation is one of the most durable ways to cut heating demand for good.
Recommended products
Filter our reviews to match your home and priorities.
BLOSTM
BLOSTM Foil Insulation Roll 1m x 10m - Radiator Reflector Panels
A versatile double-sided aluminium bubble wrap designed to reflect heat back into living spaces and reduce thermal loss through external walls.
Simple DIY way to bounce radiant heat back into your rooms rather than losing it through cold exterior walls.
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BLOSTM / Rivero Products
Radiator Foil Reflector Roll (25m x 60cm)
A high-coverage, double-layered bubble foil insulation designed to reduce heat loss through walls behind radiators. At 25 metres long, this roll offers enough material for a whole-house retrofit to boost thermal efficiency.
Reduces heat absorption into cold external walls
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SuperFOIL
SuperFOIL SF19+ Multifoil Insulation
A high-performance 3-in-1 multifoil insulation roll designed for roofs, walls, and floors, acting as a thermal barrier, radiant foil, and vapour control layer.
High-density thermal performance in a slim, flexible profile that simplifies retrofitting in tight UK loft and wall spaces.
Read ReviewBuying advice
Start with the loft and pipes
Loft insulation and hot-water pipe lagging are cheap DIY jobs with fast payback.
Radiator reflectors for external walls
Foil panels behind radiators on outside walls bounce heat back into the room.
Know when to call a professional
Cavity and solid-wall insulation need proper installation — DIY only where it's genuinely DIY-safe.
Frequently asked questions
Do home insulation products actually save money on energy bills?
They can, when they solve a real problem in your home. Our reviews focus on the products that make a measurable difference rather than novelty gadgets, and each one explains when the savings justify the cost — and when they don't.
Does PowerGuardian sell home insulation products?
No. PowerGuardian is an independent UK energy information service. Some links are Amazon affiliate links and we may earn a small commission at no extra cost to you, but our reviews and ratings always stay advice-led and independent.
How does PowerGuardian rate home insulation products?
Every review is scored across six dimensions — Energy Saving, Ease of Use, Value, Features, Installation and Reliability — which combine into an overall PowerGuardian Rating out of 5. See our methodology for full detail.