The Insulation Company helps homeowners arrange loft-insulation assessments, quotations and installation services across the UK.
London · England
Central London — the EC and WC postcodes around the City, Holborn, Clerkenwell and Bloomsbury — is dominated by Georgian and Victorian townhouses, mansion blocks and converted warehouses and offices rather than the suburban semis found further out. Much of the residential stock is flats within larger buildings, so loft and roof-space work here often turns on who owns and is responsible for the space rather than on the age of a single house. A careful look at the building's arrangement matters more than any standard approach.
We help homeowners and flat owners across central London — the EC and WC 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.
The Georgian and Victorian townhouses of Bloomsbury, Clerkenwell and the Inns of Court often have complex multi-pitch roofs, mansard storeys and top-floor spaces that were long ago converted to habitable rooms, so a straightforward loft-floor installation is the exception rather than the rule. Mansion blocks and warehouse conversions typically have shared or communal roof structures, raising questions of freeholder responsibility and leaseholder consent. Where a genuine loft void exists above a top-floor flat, insulation at ceiling level can still help, but the arrangement needs establishing first. Many period roofs also carry original detailing worth preserving.
Central London's period buildings were not designed around modern ventilation, so any roof-level insulation has to keep airflow in mind to avoid condensation, particularly in mansard and room-in-roof spaces. In shared buildings, we help you understand whether the roof space is yours to insulate at all, and whether the job is a floor to insulate at joist level or a converted room needing rafter-level work. Freeholder and managing-agent consent often comes into it.
Condensation is a common complaint in poorly ventilated central-London flats and converted top floors. We identify the cause — airflow, a building-wide issue or an extractor venting into the roof — before recommending work rather than assuming insulation alone will resolve it.
In central London, access, parking and loading restrictions, the complexity of period and converted roofs, and questions of building responsibility affect the work as much as the insulation itself. Removal of old material and any ventilation work also feature in the quotation.
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 Central 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 and flat owners across the EC and WC postcode areas — from the City, Holborn and Clerkenwell to Bloomsbury and Covent Garden. Request an assessment and we'll confirm coverage for your postcode.
Sometimes, but it depends on who owns the roof space and how the building is arranged. In mansion blocks and conversions the roof is often shared, so freeholder or managing-agent consent may be needed. We help you understand the options first.
No. A converted or mansard top floor needs insulation at rafter level rather than across a floor, which is a different job. We assess which applies to your space and keep airflow in mind to avoid condensation.
Customer feedback
Feedback from customers who have used our insulation services.
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…
These guys did a good job and were super efficient. They were on the ball and got the job done, so I would definitely use them again.
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.
