Loft insulation, spray foam removal and damp proofing in Dorchester
EcoTrust Roofing & Insulation Ltd covers Dorchester, the county town of Dorset, for loft insulation, loft boarding, spray foam removal and damp proofing. Loft and spray foam surveys are free, with a written price before any work starts.
Dorchester
Spray foam, loft insulation and damp in Dorchester homes
Dorchester has been a town since Roman times and the centre still shows it. High West Street and High East Street are lined with Georgian and Victorian frontages, many of them listed, and the core of the town is a conservation area. Brick, local stone and render sit side by side, and plenty of these buildings have solid walls with no cavity at all.
Solid walls and old roofs need to breathe. Damp in central Dorchester is often caused by modern cement render or pointing trapping moisture, or by pavements and gardens raised above the old damp course. We look for those causes first. Where a loft needs insulating, breathable mineral wool suits old timbers and lime far better than foam sprayed onto the rafters.
Fordington, on the slope down to the River Frome, has older terraces and cottages, while Victoria Park and the streets west of the centre are largely Victorian and Edwardian. The Frome water meadows north of the town flood in wet winters, and homes on the lower ground can suffer from rising and penetrating damp in the same wall.
Poundbury, on the western edge, is very different. It is a planned extension built from the 1990s onwards in traditional styles but with modern construction, so lofts there tend to need boarding for storage rather than a full insulation upgrade. In the villages around Dorchester we see more spray foam in older roofs, and we remove it by hand and lay Knauf mineral wool to 300mm.
Most common jobs in Dorchester
- Damp in solid-walled Georgian and Victorian homes
- Loft insulation top-ups in older terraces
- Raised loft boarding in newer Poundbury homes
- Spray foam removal in village cottages
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 insulation in Southam: 30m² Loft Upgraded From 50mm to 300mm in One Day (Warwickshire)
- Loft boarding in Lancing: 16.5m² Loft Stripped, Insulated to 300mm and Boarded on Raised Legs (West Sussex)
- Spray foam removal in Shrewsbury: 64m² of Open Cell Spray Foam Removed From Bitumen Felt in 2 Days (Shropshire)
Where we work around Dorchester
We cover DT1 and DT2 and the villages around Dorchester. Not on the list? Call 0800 870 8086, we almost certainly still reach you.
Questions we get in Dorchester
Do you cover Dorchester and the villages around it?
Yes. We cover Dorchester across DT1 and DT2, including Fordington, Poundbury and the surrounding villages, as well as Weymouth to the south. Surveys for spray foam removal and loft insulation are free, and you get a written price before any work is agreed.
Why are old Dorchester homes prone to damp?
Many have solid walls with no cavity, and they were built to let moisture escape. Cement render, modern pointing or raised ground outside can trap water in the wall. We check those causes first and use breathable fixes, so we do not seal in the problem we are trying to solve.
Do Poundbury homes need loft insulation?
Usually not as urgently as older homes, as they are recent builds. What owners often want is storage. We fit raised loft boarding that sits above the insulation, so it is not squashed flat and keeps working. We check the depth while we are up there and tell you honestly.
Can you insulate a listed building in Dorchester?
Often, yes. Loft insulation goes inside the roof and does not change how the house looks, but listed homes may need consent, so check with Dorset Council first. We use breathable mineral wool that suits old timbers, stone and lime, and flag anything we spot at the survey.
Is spray foam a problem in Dorset cottages?
It can be. Foam sprayed onto old rafters hides the timbers and can trap moisture against them, which old roofs do not like. Many lenders and surveyors are cautious about spray foam. We remove it by hand, clean the timbers back and give you a Certificate of Removal and a 10-year guarantee.
What guarantee do I get in Dorchester?
Loft insulation comes with a 10-year guarantee, using Knauf mineral wool laid to 300mm. Spray foam removal comes with a Certificate of Removal and a 10-year guarantee. Damp proofing comes with a 25-year insurance-backed guarantee. Everything is set out in your written price before you agree.
Free survey in Dorchester, 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.