SuperQuilt multifoil insulation
A/A+ fire ratedA/A+ fire rated and around 40mm thick. For Westminster properties where deepening the rafters is impractical, this is what makes the numbers work.
Central London loft specialists
Loft insulation in Westminster
Our installers work in Westminster and across the wider Central London area every week, which means we know what is behind the hatch before we open it. That familiarity is why our quotes hold and why the job usually takes a day rather than three.
Free survey in Westminster
Fixed written price
No call-out charge
Why it matters
The case for insulating your Westminster loft
25%of a home's heat is lost through an uninsulated roof
1 in 5UK lofts are under-insulated or have the wrong material
270mmthe depth current building regulations recommend
90%less radiant heat loss with SuperQuilt multifoil
For a Westminster homeowner the practical upshot is simple — the loft is the first upgrade worth making and the one most likely to have been done to an outdated standard.
Westminster's homes
Westminster: what a survey usually turns up
Housing across Westminster and the surrounding Central London area is largely Georgian and early Victorian terraces, mansion blocks and converted commercial buildings, much of it listed or in a conservation area, built through the late eighteenth and nineteenth centuries. When we open a hatch here, the most common finding is not an absence of insulation but an insufficiency of it — a layer that was correct when fitted and has since been overtaken by both the guidance and the price of energy.
The second most common finding is a ventilation problem. Insulating a loft floor makes the roof space colder, and a colder roof space condenses more readily. Where a previous installer packed material tight into the eaves, the roof has lost the airflow it depends on and the homeowner has a damp loft they blame on the insulation rather than on the installation.
Add to that the local factor — roof spaces here are frequently tiny, awkwardly shaped and shared across a terrace, which makes access rather than area the limiting factor — and you have most of what a Westminster survey is checking for.
Our services in Westminster
Five ways we keep Westminster homes warm
Every one of these begins with the same free survey and ends with a fixed price agreed before anything starts.
Loft insulation installation
270mm depthTopping up from the 100mm many Westminster houses still have to a full 270mm is the cheapest meaningful energy improvement available to a UK homeowner.
Loft boarding
Storage-readyBoards laid straight onto joists crush 270mm into 100mm. We batten out instead, so Westminster homeowners get usable storage and keep the insulation they paid for.
Loft ladders
Fitted in a dayFitted in a day, finished to match your landing, with the hatch insulated and draught-sealed as part of the same job.
Loft makeovers
All-in-oneOne team, one survey, one sequence of work. The insulation depth sets the batten height, the batten height sets the ladder landing — which is why doing it piecemeal costs more.
Not sure what your Westminster loft needs?
Describe the property and what is bothering you about it, and we will recommend the right combination — or tell you that nothing needs doing.
Where we work
Covering Westminster and the surrounding area
Our Westminster coverage extends naturally into Pimlico and Bloomsbury and the surrounding streets. There is no travel surcharge and no minimum job size within the area.
In the loft
Loft work in and around Westminster
Examples of the work we carry out across the area — insulation, boarding, access and full makeovers.
Questions & answers
Westminster loft insulation — common questions
What happens to the water tank and pipes?
Pipes get lagged and the tank gets insulated on the sides and top only. Leaving the base open is deliberate — it is the only thing preventing a frozen tank in a hard winter.
How much does loft insulation cost in Westminster?
Price depends on the loft's floor area, the depth and condition of anything already up there, how easy the space is to move around in, and whether old material has to be removed. That is why every Westminster quote follows a free survey rather than a phone call. Once given, the price is fixed. Our cost guide sets out each variable.
Do I need planning permission in Westminster?
Not for insulation, boarding or a ladder. The line falls at conversion — turning the loft into a habitable room — which is a structural job requiring building control sign-off and a different trade entirely.
What insulation depth do you fit?
270mm of mineral wool, cross-laid — the depth current building regulations guidance points to for a cold loft. Where a Westminster property has a room in the roof and depth is constrained, we use 40mm multifoil at rafter level instead.
Will insulating my loft cause damp?
Correctly installed, no. The risk comes from packing material hard into the eaves and sealing off the airflow the roof depends on. We stop the insulation short and use eaves trays where the pitch requires them.
Will this improve my EPC rating?
Usually, and often noticeably. Loft insulation depth is recorded directly by the assessor, so increasing it from 100mm to 270mm generally moves the rating. We hand over product documentation and declared performance figures so your assessor records what is actually there.
What homeowners say
Reviews from Westminster customers
★★★★★
Placeholder review 1 — paste a real customer quote about your work in Westminster here.Customer nameWestminster · replace with the review date
★★★★★
Placeholder review 2 — paste a real customer quote about your work in Westminster here.Customer nameWestminster · replace with the review date
★★★★★
Placeholder review 3 — paste a real customer quote about your work in Westminster here.Customer nameWestminster · replace with the review date
★★★★★
Placeholder review 4 — paste a real customer quote about your work in Westminster here.Customer nameWestminster · replace with the review date
Note for the site owner: these four review cards are placeholders. Replace the quotes and names below with real reviews from your Google Business Profile, Checkatrade or Trustpilot before you launch. Review schema has deliberately been left out until the reviews are genuine — marking up invented reviews breaches Google's guidelines.
Worth reading before you book
SuperQuilt vs mineral wool — one of our guides, written by the surveyors who assess lofts across Westminster and the rest of the capital every week. You can also browse all of our advice guides or read the general FAQ.
Written and fact-checked by the Loft Insulation London survey team, who assess loft spaces across the capital every working week. Last reviewed .
Ready for a warmer Westminster home?
A free survey, an itemised fixed quote, and a loft that stops costing you money every winter. That is the Westminster offer.