Loft insulation advice for Cardiff homeowners
Plain-English guides on costs, how much insulation you need, boarding, spray foam, damp, rodents, loft ladders and grants, based on the questions we get asked most.
How Much Does Loft Insulation Cost in Cardiff?
Our installed prices start from £600 for Knauf Earthwool loft insulation. Here is what changes the price, and what each of our loft services costs.
How Much Loft Insulation Do I Need?
The recommended depth for mineral wool loft insulation is 270mm. Here is how to measure what you have, and what to do if it falls short.
SuperFOIL vs Mineral Wool: Which Is Right for Your Loft?
Mineral wool on the loft floor is the best value for most homes. SuperFOIL earns its place where you need the loft space, have a low pitch or awkward roof. Here is how to choose.
How to Board a Loft Without Crushing the Insulation
Laying boards straight onto loft insulation squashes it and cuts its performance. Raised loft legs fix that. Here is how to get storage and a warm house.
Spray Foam Insulation Removal: What Homeowners Need to Know
Why spray foam on the underside of a roof can cause problems with surveys and lenders, what the guidance actually says, and how removal works if you decide to go ahead.
Loft Condensation and Mould: Why It Happens and How to Fix It
Wet felt, dripping nails and black spots on the rafters are usually condensation, not a leak. Here's what causes it in South Wales lofts and how to put it right.
Signs of Rodents in Your Loft: Mice, Rats and What to Do Next
Scratching overhead at night is the classic sign, but droppings, tunnels in the insulation and chewed cables tell you more. Here's how to read the signs and stop them getting back in.
Choosing a Loft Ladder: Which Type Fits Your Home?
The right loft ladder depends on your ceiling height, hatch size and how often you go up. Here's how to compare folding, sliding and timber ladders and measure up properly.
Loft Insulation Grants in Wales: What's Available in 2026
The Welsh Government's Nest scheme is the main route to free loft insulation in Wales. Here's who it's for, how to apply, what's happened to ECO4 and GBIS, and what to do if you don't qualify.
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