SuperQuilt multifoil insulation
A/A+ fire ratedAt roughly 40mm, multifoil delivers serious performance without stealing headroom — which is why it is the answer for Hornsey homes with a room in the roof or a sloping ceiling.
North London loft specialists
Loft insulation in Hornsey
Our installers work in Hornsey and across the wider North 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 Hornsey
Fixed written price
No call-out charge
Why it matters
The case for insulating your Hornsey 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
The reason we lead with the roof rather than the walls or the windows is arithmetic: in a typical Hornsey property it is the largest single heat loss and the smallest single bill to fix it.
Hornsey's homes
Why Hornsey houses lose more heat than they should
Most of Hornsey was built during the 1870s through the 1930s, and its roofs are typically steeply pitched slate and clay tile roofs with usable, walkable voids above the top floor. Nothing about that construction is defective — these are, for the most part, sound, well-built houses. They were simply designed for a world where heating was cheap and thermal performance was not something anyone measured.
Bolting modern expectations onto that fabric is largely a matter of doing a few things properly rather than doing many things at all. Full-depth insulation at ceiling level, a ventilation path that has not been blocked, a hatch that is sealed rather than left as a hole, and boarding that sits above the wool instead of on top of it. Get those four right and the loft stops being the weak point.
Bear in mind too that 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.
Our services in Hornsey
Five ways we keep Hornsey 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 depthFull-depth mineral wool, fitted with the ventilation path protected and the hatch sealed — the details that decide whether a Hornsey loft actually performs.
Loft boarding
Storage-readyBoards laid straight onto joists crush 270mm into 100mm. We batten out instead, so Hornsey 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-oneThe whole loft dealt with at once, for one fixed price. Most Hornsey properties are finished within a day.
Not sure what your Hornsey 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 Hornsey and the surrounding area
Hornsey sits within North London, and our teams regularly work in neighbouring areas including Crouch End and Haringey. If you are just outside Hornsey itself, we almost certainly already cover your street.
In the loft
Loft work in and around Hornsey
Examples of the work we carry out across the area — insulation, boarding, access and full makeovers.
Questions & answers
Hornsey loft insulation — common questions
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 Hornsey property has a room in the roof and depth is constrained, we use 40mm multifoil at rafter level instead.
Do you offer free surveys in Hornsey?
Always, and there is no charge or obligation attached. A survey takes around half an hour. We would rather spend it establishing what your Hornsey loft actually needs than quote blind and revise the price later.
Will insulating my loft cause damp?
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 Hornsey loft, we deal with the cause first rather than insulating over it.
Do you remove the old insulation?
It depends what is up there. Cross-laying a new layer over sound existing material is both cheaper and perfectly correct. Failed, contaminated or loose-fill material is stripped, bagged and disposed of — slow work, and we show it as its own line on the quote.
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.
Do you work in the streets around Hornsey?
Yes — we cover Hornsey and the whole surrounding area, and our teams are usually working somewhere nearby on any given week. If your street is not obviously listed on our coverage page, ring us anyway; the list is not exhaustive.
What homeowners say
Reviews from Hornsey customers
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Worth reading before you book
Loft condensation and ventilation — one of our guides, written by the surveyors who assess lofts across Hornsey 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 Hornsey home?
Get a fixed written price for your Hornsey property. No call-out fee, no obligation, and no chasing afterwards.