SuperQuilt multifoil insulation
A/A+ fire ratedAt roughly 40mm, multifoil delivers serious performance without stealing headroom — which is why it is the answer for Muswell Hill homes with a room in the roof or a sloping ceiling.
North London loft specialists
Loft insulation in Muswell Hill
A loft that is warm at the ceiling and cold above it, with storage you can reach safely and a light you can switch on: that is what we do for Muswell Hill homeowners. One survey, one visit, one fixed price.
Free survey in Muswell Hill
Fixed written price
No call-out charge
Why it matters
The case for insulating your Muswell Hill 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
Put against current energy prices, a Muswell Hill loft still carrying 100mm of settled wool is costing its owner money every single winter it stays that way.
Muswell Hill's homes
Muswell Hill: what a survey usually turns up
Housing across Muswell Hill and the surrounding North London area is largely Victorian and Edwardian terraces, generous interwar semis and a scattering of post-war infill, built through the 1870s through the 1930s. 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 — many of the larger houses were divided into flats decades ago, so the loft often sits above a top-floor conversion with its own separate access — and you have most of what a Muswell Hill survey is checking for.
Our services in Muswell Hill
Five ways we keep Muswell Hill 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 depthThe standard job, done to standard: two layers, the second laid across the joists to kill the cold bridge, eaves left clear. Most Muswell Hill lofts are finished in half a day.
Loft boarding
Storage-readyTongue-and-groove panels, screwed rather than nailed so they lift again if a cable needs reaching — raised clear of the insulation throughout.
Loft ladders
Fitted in a dayFixed, stable access instead of a stepladder on the landing. Timber, aluminium or concertina, chosen to suit the space your Muswell Hill home actually has.
Loft makeovers
All-in-oneInsulation, boarding, lighting and a ladder handled together in one visit — cheaper and better sequenced than buying the four separately.
Not sure what your Muswell Hill 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 Muswell Hill and the surrounding area
Muswell Hill sits within North London, and our teams regularly work in neighbouring areas including Highgate and Crouch End. If you are just outside Muswell Hill itself, we almost certainly already cover your street.
In the loft
Loft work in and around Muswell Hill
Examples of the work we carry out across the area — insulation, boarding, access and full makeovers.
Questions & answers
Muswell Hill loft insulation — common questions
Do I need planning permission in Muswell Hill?
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.
Can I still use my Muswell Hill loft for storage afterwards?
Yes, provided the boarding is raised. Screwing boards straight onto 100mm joists over 270mm of wool compresses it to a third of its depth and throws away most of what you paid for. We fit raised boarding on battens so the insulation stays at full depth underneath.
What insulation depth do you fit?
Full recommended depth of 270mm as standard. Going deeper gives sharply diminishing returns; stopping short leaves money on the table every winter. For sloping ceilings in Muswell Hill loft rooms, multifoil at around 40mm is the practical alternative.
Do you offer free surveys in Muswell Hill?
Yes. Every enquiry from Muswell Hill and the surrounding area starts with a free, no-obligation visit. We measure the loft, check the joists and ventilation, and write a fixed price afterwards. There is no call-out charge whether you proceed or not.
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.
Do you remove the old insulation?
Where it can stay, it stays and we top over it. Where it cannot, it goes and the disposal is included in the fixed price. You will never find out about removal costs mid-job — that is decided at survey.
What homeowners say
Reviews from Muswell Hill customers
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Worth reading before you book
SuperQuilt vs mineral wool — one of our guides, written by the surveyors who assess lofts across Muswell Hill 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 Muswell Hill home?
We will look at your Muswell Hill loft, measure what is there and tell you honestly whether it needs work. No charge either way.