The Insulation Company helps homeowners arrange loft-insulation assessments, quotations and installation services across the UK.
South Wales · Wales
Caerphilly grew as a valleys town in the shadow of its great castle, and much of its housing dates from the coalfield era. Rows of stone and brick terraces line the older streets and the surrounding communities of Bedwas, Abertridwr and Senghenydd, climbing the hillsides in tight ranks. Interwar and post-war semis fill the more level ground, and modern estates have spread toward the town's edge and the commuter routes to Cardiff. That range of ages means loft work here is rarely standard — a hillside terrace and a newer estate home ask for different things.
We help homeowners across Caerphilly and the surrounding South Wales valleys arrange loft assessments, quotations and installation. Depending on the service, work may be completed by The Insulation Company or an approved installation partner.
The coalfield terraces around Caerphilly and up the valleys often have compact, steeply pitched lofts, solid walls and insulation laid decades ago that has settled and thinned. Interwar and post-war semis across the town typically carry thin original wool that suits a top-up, and many already have storage boards laid straight onto the joists. Hillside cottages in the surrounding villages can have irregular roof structures worth a close look. The newer commuter-belt estates generally have some insulation already, so the useful question becomes boarding, ventilation or whether more depth is worthwhile.
The valleys are wet and, being higher and more sheltered from the sea, can be colder than coastal South Wales, so both heat loss and moisture matter. Cramming insulation into the eaves of a hillside terrace can block airflow and encourage condensation, so we keep the eaves clear and look at ventilation and insulation together. In older cottages we check that the roof can still breathe before recommending a build-up.
Wet valley conditions make condensation common in poorly ventilated Caerphilly lofts, particularly where warm air rises into an unventilated roof. Insulation alone will not resolve a moisture problem, so we find the real cause — airflow, a leak or an extractor venting into the loft — before recommending work.
In Caerphilly, cost is driven mainly by hillside loft access, whether old insulation needs removing, the roof structure in older homes, and any boarding or ventilation work. Steep terraced streets can also make access and parking a factor.
You tell us about your property and what you have noticed in the loft. Nothing is committed at this stage.
We review the property age, roof type, loft access and any existing insulation, moisture or ventilation concerns.
Where required, a survey or assessment is arranged so measurements and conditions can be checked in person.
You receive a clear written recommendation and quotation setting out the scope, materials, price and any guarantee.
Work is completed by The Insulation Company or an approved installation partner, with access protected throughout.
Final checks are carried out, the loft is left clean, and relevant documentation and any guarantee are supplied.
These are examples of our work elsewhere, shown to illustrate what a project involves. They did not necessarily take place in Caerphilly.
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 Caerphilly and the surrounding valleys, from the town centre to Bedwas, Abertridwr, Senghenydd and Ystrad Mynach, as well as Cardiff and Newport. Request an assessment and we'll confirm coverage for your postcode.
Usually, yes. A tight, steeply pitched loft changes the method and material rather than ruling the job out. We assess the space, keep the eaves clear for airflow and recommend a sensible build-up.
They can. Wet, cooler valley winters make both heat loss and condensation more of an issue, so we look at ventilation alongside insulation. If there is any sign of damp, we find the cause before recommending work.
Customer feedback
Feedback from customers who have used our insulation services.
An incredibly professional and efficient service. I can’t fault them in the slightest and would recommend them to anyone looking for this kind of service.
The crew showed up on time, explained everything clearly, finished faster than expected, and we noticed the house felt more comfortable almost immediately.
I was looking at getting my roof insulated but was shocked by the price of some of the quotes I received. I stumbled across these guys and could not be more pleased. Great quality work for a fantastic price.
Smooth and stress-free process. The team were polite, efficient and did a great job. Really pleased with the results. Thanks guys!
These guys were the nicest and provided the best service. They did the job much quicker than expected. Very happy with the job and the price. Highly recommend.
The boys were very kind and well advised. They got the job done quickly and smoothly. My loft was in pretty bad shape, as I have a slight hoarding problem, and they passed no judgement. Thank you for your service.
