
SuperQuilt multifoil insulation
A/A+ fire ratedMultifoil earns its place in Willesden roofs where depth is the binding constraint — period timbers, low headroom, or a conversion already boarded out.
North West London loft specialists
Roughly a quarter of an uninsulated home's heat escapes through the roof. For Willesden homeowners that is the cheapest problem in the house to fix, and the one most likely to have been fixed badly the first time. We do it properly.

Why it matters
Which is why a free survey is worth half an hour of your time — the measurement itself usually settles whether a Willesden loft is worth spending anything on.
Willesden's homes
Willesden forms part of North West London, an area whose housing is characterised by Victorian and Edwardian terraces close in, and mile after mile of interwar semi-detached and detached suburbia further out. The bulk of it went up during the 1890s through the 1930s, decades before insulation was a design consideration at all, and what sits above the ceilings today is usually a retrofit added at some point in the last fifty years to whatever standard was current at the time.
That matters because the standard has moved repeatedly. Lofts insulated in the 1980s typically received 100mm; earlier work was often 50mm or nothing. Current guidance is 270mm. A great many Willesden houses therefore contain insulation that was entirely adequate when it was fitted and is now doing roughly a third of the work it should be — while the homeowner reasonably assumes the loft is 'done'.
The interwar semis typically have large, square, walkable lofts — the best candidates in london for boarding as proper storage. It is the sort of thing a survey establishes in ten minutes and a phone quote never can.
Our services in Willesden
Every one of these begins with the same free survey and ends with a fixed price agreed before anything starts.

Multifoil earns its place in Willesden roofs where depth is the binding constraint — period timbers, low headroom, or a conversion already boarded out.

Full-depth mineral wool, fitted with the ventilation path protected and the hatch sealed — the details that decide whether a Willesden loft actually performs.

Boards laid straight onto joists crush 270mm into 100mm. We batten out instead, so Willesden homeowners get usable storage and keep the insulation they paid for.

Many older Willesden hatches are too small for a ladder to swing through safely. We measure at survey and price any enlargement up front rather than on the day.

For Willesden homeowners who want the roof space to stop being a problem and start being storage: everything, in a day.
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
Kilburn and Brondesbury are all covered by the team that works Willesden, which is why we can usually offer a survey slot within the same week rather than the same month.
In the loft
Examples of the work we carry out across the area — insulation, boarding, access and full makeovers.



Questions & answers
Only when it needs to go. Sound, dry wool can be topped over, which saves you the removal cost. Material that is damp, vermin-fouled or collapsed does come out, and we bag it and take it away. Which applies to your Willesden loft is established at survey and priced separately.
It can if the ventilation is ignored, which is why we check it before anything comes off the van. If we find an existing condensation problem in a Willesden loft, we deal with the cause first rather than insulating over it.
Always, and there is no charge or obligation attached. A survey takes around half an hour. We would rather spend it establishing what your Willesden loft actually needs than quote blind and revise the price later.
The recommended 270mm, achieved in two layers: the first between the joists, the second laid across them to eliminate the cold bridge through the timber. Skipping that second cross-lay is one of the most common shortcuts in the trade.
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.
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 homeowners say
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Loft condensation and ventilation — one of our guides, written by the surveyors who assess lofts across Willesden 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 .
We will look at your Willesden loft, measure what is there and tell you honestly whether it needs work. No charge either way.