A cheap install that leaves gaps, compresses material or ignores moisture risk will cost you more in the long run. Here's what proper installation looks like.
Insulation only works when it's installed correctly. Compressed mineral wool loses up to half its thermal performance. Gaps around pipes and joists create thermal bridges that funnel heat straight out. And in solid-wall properties — common across Wales — installing vapour-impermeable materials on the wrong side of the wall traps moisture and causes mould.
We've been called in to fix too many botched jobs. Insulation pulled out because it was the wrong spec. Cavity wall work that bridged the damp-proof course. Loft installs that blocked ventilation and caused condensation in the rafters. In every case, the homeowner went with the cheapest quote and paid twice.
Proper installation means surveying first, specifying the right material for your construction type, and installing to manufacturer standards with documented compliance. It costs more upfront than a cowboy job, but it actually works — and it lasts.
Ready to improve your home? Our certified team brings 15+ years of retrofit experience and full PAS 2030 / 2035 compliance to every job across Wales.
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