Loft insulation, spray foam removal and damp proofing in Horsham
EcoTrust Roofing & Insulation Ltd covers Horsham, West Sussex, from our Sevenoaks office for loft insulation, loft boarding, spray foam removal and damp proofing. Surveys are free and you get a written price before any work starts.
Horsham
Spray foam, loft insulation and damp in Horsham homes
Horsham is an old market town, and the streets around the Carfax and the Causeway still have timber-framed houses, Georgian fronts and roofs of Horsham stone, the heavy sandstone slabs quarried locally. The Causeway and the town centre are conservation areas, and many of these buildings are listed.
Horsham stone roofs and old timber frames need a light touch. Lofts under stone slabs can be cramped, with old timbers carrying a lot of weight, so insulation has to be breathable and ventilation kept clear. Spray foam in a roof like this is a real worry, because it hides the timbers and can hold moisture against them.
The town grew with the railway in the Victorian era, so streets near the station have brick terraces and villas. Beyond them, Roffey, Littlehaven, Holbrook, Highwood and Broadbridge Heath are mostly 20th century and newer estates, with more recent homes still going up on the edges of town. Post-war semis and estate homes here often have thin, old loft insulation that is easy to top up.
Horsham sits inland on Wealden clay, so damp here is less about sea air and more about ground moisture, blocked gutters and walls that cannot breathe. We trace damp to its source before recommending anything. For lofts we lay Knauf mineral wool to 300mm and can fit raised boarding so you keep your storage space.
Most common jobs in Horsham
- Loft insulation top-ups in post-war and estate homes
- Spray foam removal before a sale or remortgage
- Breathable repairs in old timber-framed houses
- Raised loft boarding for storage
Recent EcoTrust jobs you can read in full
Real jobs, written up with photos. Each one is labelled with the town it was done in.
- Loft boarding in Lancing: 16.5m² Loft Stripped, Insulated to 300mm and Boarded on Raised Legs (West Sussex)
- Spray foam removal in Birmingham: 40m² of Closed Cell Foam Removed and Loft Reinsulated in 2 Days (West Midlands)
- Damp proofing in Doncaster: Damp Walls Stripped, Treated and Replastered in 4 Days (South Yorkshire)
Where we work around Horsham
We cover RH12 and RH13 and the villages around Horsham. Not on the list? Call 0800 870 8086, we almost certainly still reach you.
Questions we get in Horsham
Do you cover all of Horsham?
Yes. We cover Horsham across RH12 and RH13, including Roffey, Holbrook, Broadbridge Heath, Southwater and the villages around, from our Sevenoaks office. Surveys for spray foam removal and loft insulation are free, and you get a written price before any work is agreed, with no pressure and no obligation to go ahead.
Can you insulate under a Horsham stone roof?
Usually, yes, with care. Horsham stone slabs are heavy and the lofts beneath can be tight, with old timbers. We use breathable mineral wool, keep ventilation clear and check the timbers at the survey. If the house is listed, check with Horsham District Council before any work, and we will flag anything we spot.
Why is spray foam a worry in older Horsham houses?
Old roofs need air moving around the timbers. Spray foam stuck to the underside of the roof covers them, so nobody can inspect them and moisture can be trapped. Many lenders and surveyors are cautious about spray foam. We remove it by hand and give you a Certificate of Removal and 10-year guarantee.
What causes damp in Horsham homes?
Horsham sits on Wealden clay inland, so damp is mostly from ground moisture, blocked or leaking gutters, failed pointing and walls that cannot breathe. Older houses with cement render or modern plaster on solid walls are most affected. We trace the cause first, then fix it outside as well as in.
How much loft insulation should my Horsham home have?
Current guidance is around 270mm of mineral wool. Many post-war homes in Roffey, Holbrook and Littlehaven still have much less, or insulation squashed by boxes. We clear old material where needed and lay Knauf mineral wool to 300mm. Insulation comes with a 10-year guarantee and a written price first.
Can you board my loft without squashing the insulation?
Yes. We fit raised boarding on legs above the new insulation, so it keeps its full depth. We did this on a 16.5m² loft in Lancing, West Sussex, stripped and refilled to 300mm, then boarded. You can read that job in full, with photos, on our case studies page.
Free survey in Horsham, and a price in writing
EcoTrust Roofing & Insulation Ltd. Rated 9.97 on Checkatrade, 4.9 on Trustpilot and 5.0 on Google, with 500+ spray foam removals and 35+ years of combined experience.