The Insulation Company helps homeowners arrange loft-insulation assessments, quotations and installation services across the UK.
South East · England
St Albans layers history on history, from Roman Verulamium and its medieval abbey to the Georgian and Tudor buildings around the cathedral and George Street. Much of the centre sits within conservation areas, and the city is rich in listed and period stock. Beyond the core, the Victorian and Edwardian terraces of Fleetville, interwar semis in Marshalswick and later estates fill out the picture. That depth of history means loft work here often has to combine real energy savings with genuine care for older, characterful roofs.
We help homeowners across St Albans 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 city-centre and conservation-area properties frequently have steep, irregular period roofs, sometimes listed, where access is tight and materials and methods must be chosen carefully. The Victorian and Edwardian terraces of Fleetville and Camp tend to have compact lofts with thin or settled original insulation. Interwar semis around Marshalswick and Fleetville usually carry older wool that suits a top-up, often with boards laid straight onto the joists. Newer homes toward London Colney and the city's edge generally have insulation in place, so boarding or ventilation becomes the more relevant question.
With so much period and conservation-area stock, St Albans loft work is not simply about piling in depth. Older roofs need to breathe, so we keep the eaves clear and favour breathable materials on traditional and listed buildings rather than sealing the roof tight. Where original slate or tile coverings and ageing felt are present, we assess how the roof handles moisture first, and we work carefully around historic timbers and fragile ceilings.
In older St Albans roofs, condensation is often down to blocked airflow rather than a leak. Insulation alone will not cure a moisture problem, so we identify the real cause — poor ventilation, a slipped tile or an extractor venting into the loft — before recommending work.
In St Albans, cost is shaped mainly by access to steep period roofs, the extra care needed on listed and conservation-area properties, whether old insulation must be removed, and any boarding or ventilation work.
Many St Albans 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 St Albans.
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 St Albans and nearby Hertfordshire, from the city centre and Fleetville to Marshalswick, Camp and London Colney, as well as Harpenden, Radlett and Wheathampstead. Request an assessment and we'll confirm coverage for your postcode.
Usually, yes, but older and listed roofs need a careful approach. We keep the eaves clear for airflow, favour breathable materials where appropriate and work carefully around historic timbers rather than applying a standard build-up.
Blocked ventilation is a common cause of condensation in older roofs. If you have noticed staining or damp, we look at the cause — airflow, a slipped tile or an extractor venting into the loft — because insulation alone will not fix a moisture problem.
Customer feedback
Feedback from customers who have used our insulation services.
Recommended. Friendly, efficient and did a great job in two very dirty loft spaces. All the waste shifted quickly. Top job. Thanks.
These guys are the best! Rory and Leo were very kind to me and got it all done in just a day. Thank you.
Jake and Rory supplied and fitted the insulation in our loft. They did an excellent job and I would recommend them.
It was refreshing to have two young lads who came in and worked incredibly hard on my loft. They came early and left late to get the job done. The best workers I’ve had in a long time, and I would recommend them 100%.
Good lads. They were professional throughout, took extra care and left the place spotless. We can already feel the difference with the fresh insulation.
Top man Leonardo with the insulation. Did the insulation in a day.
