Cavity Wall Insulation has been surveying and installing in Swindon for years — cavity-wall fill, loft top-ups, internal and external wall systems, and underfloor work. The bulk of properties we survey in Swindon are post-war cavity-wall homes — three-bed semis, ex-council terraces and modest detached builds.
The bulk of properties we survey in Swindon are post-war cavity-wall homes — three-bed semis, ex-council terraces and modest detached builds. We see a steady minority of stone-built and brick-faced solid-wall houses, particularly in the older conservation pockets, which need a different approach entirely.
Swindon sees its share of cold snaps each winter, and uninsulated rooms drop temperature rapidly overnight. Customers typically report bedrooms holding warmth two to three hours longer the first night after a cavity fill — a small thing, but a noticeable one.
Whatever your property type, we'll specify the right system. These are the services we install across Swindon and the surrounding area.
Top-up or full re-lay to current depth standards, with hatch draught-proofing.
Bonded bead or blown fibre, drilled and pumped with a written 25-year guarantee.
Render-finish system for solid-wall homes — warmth and weatherproofing in one.
Slim breathable boards for listed and conservation properties.
Mineral wool or rigid board between joists; stops cold from below.
Safe foam removal from awkward voids, surveyed and extracted to current standards.
For 1970s–1990s detached homes in Swindon, the original cavity bead has often partially slumped. A borescope inspection tells us within ten minutes whether a top-up or a full extract-and-refill is needed.
Surveys in Swindon are free, written quotes are itemised, and we don't take deposits for jobs under £3,000. Pay on completion, after you've walked the site with the install lead.
Four steps, no surprises. We follow the same process on every property in Swindon.
A local surveyor visits, inspects the loft, walls and any exposed floor voids, and asks about damp history, ventilation and any planned building work.
Itemised by measure — loft top-up, cavity fill, EWI per elevation — with materials, guarantee scope and labour broken out separately. No surprise extras.
Two or three-person team, dust sheets down, all access points (loft hatch, drilled holes) reinstated and made good before we leave site.
Walk-through with the lead installer. You get the guarantee paperwork the same day and a follow-up call after the first heating month.
A few representative jobs from our recent work in and around Swindon.
Solid-wall mid-terrace with damp staining on the north wall. Specified breathable internal wood-fibre boards on two external walls and re-laid the loft. The damp resolved within six weeks as the wall fabric began to dry, with no chemical treatment needed.
External wall insulation applied to the exposed gable only, finished in a silicone render matched to the existing brick tones. The bedroom that shares the gable wall went from being the coldest room in the house to the warmest.
Borescope showed the original cavity bead had compacted at the base of every wall. Full extract-and-refill with new bonded bead, plus draught-stripping around the suspended ground floor. Reported gas use dropped by roughly a quarter over the following winter.
Insulation done badly is worse than no insulation. These are the issues we're called out to remediate most often in Swindon.
Someone over 18 needs to be on site at the start of the day to grant access and at the end for sign-off. You don't need to be present during the install itself — most cavity work happens externally and most loft work is contained to the loft space.
Yes. Cavity extraction is a service we offer across Swindon as a standalone job or as part of a refill. We use specialist whirling-chain equipment to remove slumped or damp material before refilling with bonded bead.
Minimal. Cavity wall is mostly external — neighbours rarely realise it's happening. Loft work creates a couple of hours of activity in the access room below the hatch. We use dust sheets, leave the property clean, and put the loft hatch back as we found it.
A standard 3-bed semi in Swindon is normally drilled, filled and reinstated within a single working day. The team arrives between 8:00 and 8:30, the install itself usually takes four to six hours, and the drill holes are colour-matched to the existing mortar before we leave.
For a typical 3-bed semi in Swindon, expect £600–£1,200 for cavity wall insulation, depending on wall area, gable exposure and whether existing material needs extracting first. We'll always give a written, itemised quote after the free survey — never a phone estimate.
Every installer working in Swindon holds the relevant industry accreditations (CIGA, NIA or BBA-equivalent depending on the system). Every cavity-wall install carries a 25-year guarantee, which only certified installers can issue.