SuperQuilt multifoil insulation
A/A+ fire ratedWhere a Sutton loft has already been converted, insulation has to follow the rafters rather than the floor. SuperQuilt does that in 40mm instead of the 200mm-plus a wool build-up would need.
South London loft specialists
Loft insulation in Sutton
If your Sutton loft has 100mm of flattened wool and a boarded patch balanced on the joists, you are not alone and you are losing money every winter. We fit insulation to the recommended 270mm depth, and raise any boarding clear so it keeps working.
Free survey in Sutton
Fixed written price
No call-out charge
Why it matters
The case for insulating your Sutton 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 Sutton property it is the largest single heat loss and the smallest single bill to fix it.
Sutton's homes
Why Sutton lofts need attention
Sutton forms part of South London, an area whose housing is characterised by dense Victorian terraces and villas, interwar semis and a substantial amount of purpose-built and converted flats. The bulk of it went up during the 1860s 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 Sutton 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'.
Subdivision into flats is very common, so ownership of the roof space is worth establishing before work is booked. It is the sort of thing a survey establishes in ten minutes and a phone quote never can.
Our services in Sutton
Five ways we keep Sutton 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 Sutton lofts are finished in half a day.
Loft boarding
Storage-readyStorage that does not flatten your insulation. We raise the deck on battens so the full depth survives underneath — the version most Sutton lofts should have had first time.
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-oneInsulation, boarding, lighting and a ladder handled together in one visit — cheaper and better sequenced than buying the four separately.
Not sure what your Sutton 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 Sutton and the surrounding area
Our Sutton coverage extends naturally into Morden and Mitcham 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 Sutton
Examples of the work we carry out across the area — insulation, boarding, access and full makeovers.
Questions & answers
Sutton loft insulation — common questions
What happens to the water tank and pipes?
Insulating the loft floor makes everything above it colder, including your tank and pipework. Lagging is therefore part of the work rather than an optional extra, and we will point out anything that looks like it will need attention.
Do you remove the old insulation?
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 Sutton loft is established at survey and priced separately.
What insulation depth do you fit?
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.
How long does the work take in a typical Sutton home?
Half a day for insulation alone; a full day for a combined job with boarding, lighting and a ladder. Very large Sutton lofts or heavy strip-outs occasionally run into a second morning, and we tell you that in advance.
What homeowners say
Reviews from Sutton 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 Sutton 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 Sutton home?
Book a free, no-obligation survey of your Sutton loft and get a fixed price in writing before you decide anything.