The Insulation Company helps homeowners arrange loft-insulation assessments, quotations and installation services across the UK.
South East · England
Stevenage was the first town designated under the New Towns Act of 1946, and its planned neighbourhoods still shape it — Bedwell, Broadwater, Shephall, Chells and Pin Green were built out from the 1950s, radiating from Britain's first purpose-built pedestrianised town centre. The older Stevenage survives in the Old Town along the High Street, with its Georgian and Victorian houses. That mix of post-war estates and older stock means loft work here spans everything from shallow-joisted new-town semis to steeper period roofs.
We help homeowners across Stevenage and the surrounding Hertfordshire area arrange loft assessments, quotations and installation. Depending on the service, work may be completed by The Insulation Company or an approved installation partner.
The new-town semis and terraces of Bedwell, Broadwater and Shephall were built to the standards of their time, so many carry thin, long-settled insulation that suits a top-up — commonly with storage boards laid straight onto shallow joists, leaving too little insulation beneath. Old Town properties tend to have more compact, steeply pitched period lofts with awkward access. Later private estates around Chells Manor and Great Ashby usually have some insulation already, so raised boarding or improved ventilation is often the more useful step than simply adding depth.
On Stevenage's post-war estates, the recurring issue is boarding fixed directly to shallow joists over insufficient insulation, so raising the deck above a proper depth is frequently the real improvement. Older Old Town roofs benefit more from keeping the eaves clear so they can breathe. Across all ages, we check that kitchen and bathroom extractors vent outside rather than into the loft, since that is a common and avoidable cause of condensation.
Condensation in Stevenage lofts is often caused by poor ventilation or an extractor discharging into the roof space rather than a leak. Insulation alone will not resolve a moisture problem, so we look for the actual cause before recommending work.
In Stevenage, cost is driven mainly by the age and layout of the roof, whether existing boarding or old insulation needs lifting or removing, the depth of top-up required, and any ventilation work.
Many Stevenage lofts already have some insulation. Where it is sound we can top it up to a suitable wool build-up; where it is damp, contaminated or compressed we remove and replace it. A short assessment tells you which applies.
These are examples of our work elsewhere, shown to illustrate what a project involves. They did not necessarily take place in Stevenage.
Emma's front and rear bedrooms, split by a central chimney breast, both cooled quickly. We insulated the 40m² floor on both sides of the chimney to a full 300mm depth.
Example from our project library
Tom noticed condensation on the bedroom windows and rapid overnight heat loss. We gave his compact 31m² loft a full 300mm Knauf glass mineral wool layer, fitted carefully around the hatch and low edge bays.
Example from our project library
Peter's upstairs ran consistently colder than the ground floor even after a heating service. The 46m² loft was almost completely uninsulated, so we installed a full 300mm Knauf glass mineral wool layer from hatch to gable.
Example from our project library
We help homeowners across Stevenage and nearby Hertfordshire, from Bedwell, Broadwater and Shephall to Chells, Pin Green and the Old Town, as well as Hitchin, Letchworth and Knebworth. Request an assessment and we'll confirm coverage for your postcode.
Usually, yes. Boards fixed straight to shallow joists tend to leave too little insulation underneath. Raised loft boarding lifts the deck above a proper depth of insulation, so you keep the storage and gain the warmth.
Condensation is often down to poor airflow or an extractor venting into the roof space. If you have noticed staining, we look at the cause first, because insulation alone will not fix a moisture problem.
Customer feedback
Feedback from customers who have used our insulation services.
Great service from start to finish. The team were friendly, professional and completed the work to a high standard…
Really happy with the service. The team were friendly, turned up on time and got the job done with no fuss. Everything was left clean and tidy, and we can already feel the difference.
Absolutely great work. Honestly, they were so easy to work with, there were no hassles and a great job was completed. Would highly recommend.
Quality service and great people as well. They also undercut all my other quotes. Would highly recommend.
Great service with great prices. I felt very comfortable letting them get on with the insulation. No mess was left behind, and it was definitely needed with the horrible weather.
Excellent experience from beginning to end. The team were approachable, knowledgeable and delivered work of an outstanding…
