The Insulation Company helps homeowners arrange loft-insulation assessments, quotations and installation services across the UK.
London · England
North London spans grand Victorian terraces in Islington and Highgate, the leafy interwar suburbs of Barnet and Enfield, and dense mixed housing through Haringey and Camden. Lofts here are frequently altered — boarded for storage, part-converted, or insulated years ago to standards well below today's — so the useful starting point is always what is genuinely up there now.
We help homeowners across north London — the N and NW postcode areas — arrange loft assessments, quotations and installation. Depending on the service, work may be completed by The Insulation Company or an approved installation partner.
Period terraces around Islington, Crouch End and Muswell Hill often have compact lofts with steep, awkward access and original insulation that has settled over decades. The 1930s semis of Finchley, Southgate and Enfield typically carry thin original wool that suits a top-up, and many have boards laid straight on the joists. Ex-local-authority and post-war homes vary widely and are best judged individually.
The older north-London roofs were not designed around modern ventilation, so we keep the eaves clear and look at airflow alongside insulation. In part-converted lofts — common where families have added storage rooms — we check whether the job is a loft floor to insulate at joist level or a room-in-roof needing rafter-level work.
Condensation shows up in poorly ventilated north-London lofts, especially where an extractor fan has been run into the roof space. We find the cause first rather than assuming insulation will cure it.
Access on terraced streets, parking, removal of old insulation and any boarding or ventilation work are the main cost factors across north London.
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 North London.
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 the N and NW postcode areas — from Islington, Camden and Haringey to Barnet, Finchley, Southgate and Enfield. Request an assessment and we'll confirm coverage for your postcode.
Boards laid straight onto the joists usually compress the insulation beneath and reduce its performance. We can lift and reinstate storage on a raised boarding system so the build-up is preserved.
Customer feedback
Feedback from customers who have used our insulation services.
Very good, prompt and friendly service with an excellent result. Very pleased with the outcome. Well done lads.
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.
