A quarter of your home's heat escapes through an uninsulated loft. Our certified team covers Cardiff, Bristol & Swansea — sorted fast, often the same week.
"Professional, tidy and done in one morning. Our heating bills dropped noticeably that same winter."
"Brilliant team, fast job, spotless finish. Wish I'd done it years ago."
We're not a national call centre. We're a local team that lives and works in the same communities as our customers — and we treat every home as if it were our own.
No pressure, no upselling. One of our surveyors visits, assesses your loft, and leaves you with a clear, honest quote — whether you go ahead or not.
We only fit Knauf glass wool insulation — the industry standard for thermal performance, fire resistance, and long-term durability.
We check your eligibility for every available scheme. Many homeowners qualify for grants that dramatically reduce — or even eliminate — the cost.
Got old, damaged or contaminated insulation? We handle the full removal and replacement, leaving your loft clean, safe and properly insulated.
Every installation is backed by a comprehensive 10-year workmanship guarantee. It's our promise that the work will last — and if it doesn't, we come back.
Our Cardiff, Bristol and Swansea teams know these areas inside out. Most jobs are completed in a single morning — and we always leave the place spotless.
Tell us about your property using the form above. It takes under 60 seconds and helps us prepare before we visit.
A local surveyor visits at a time that suits you, assesses your loft in full, and gives you a transparent, no-obligation quote.
If you're happy to proceed, our team installs your insulation quickly and cleanly. Most jobs take just a few hours.
Real reviews from real customers across Cardiff, Bristol and Swansea.
"The whole thing was painless. They came out the next day, gave us a clear quote, and had the job done by the end of the week. The difference in our hallway temperature alone was noticeable. Brilliant."
"I'd been putting it off for years. Shouldn't have — best money I've spent on the house. The team were polite, worked fast, and the energy bill comparison is already showing. Wish I'd done it sooner."
"Very professional from start to finish. They explained everything clearly, didn't try to upsell me anything I didn't need, and left the loft tidier than they found it. Absolutely recommend."
Join hundreds of homeowners across Cardiff, Bristol and Swansea who've cut their bills and improved their homes with The Insulation Company.