SuperQuilt multifoil insulation
A/A+ fire ratedMultifoil earns its place in New Cross roofs where depth is the binding constraint — period timbers, low headroom, or a conversion already boarded out.
South East London loft specialists
Loft insulation in New Cross
We insulate lofts across New Cross — topping up thin or ageing material to the depth current building regulations recommend, boarding the space so it earns its keep, and fitting proper access so you can actually get to it. Every job starts with a free survey, and every price is fixed before work begins.
Free survey in New Cross
Fixed written price
No call-out charge
Why it matters
The case for insulating your New Cross 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 New Cross 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practical upshot is simple — the loft is the first upgrade worth making and the one most likely to have been done to an outdated standard.
New Cross's homes
Heat loss in New Cross: where it goes
In a typical New Cross property built during the 1880s through the 1930s, the roof accounts for the largest single share of heat loss of any element in the building envelope. Warm air rises, the ceiling is thin, and above it sits a ventilated void at close to outdoor temperature for most of the winter.
The good news is that this is the cheapest part of the fabric to improve, by a long way. Wall insulation is disruptive and expensive. Window replacement is a major capital cost. Loft insulation is a day's work with materials that cost very little relative to what they save, and it needs no permissions of any kind.
The one local caveat: hipped roofs on 1930s semis cut the usable loft area down sharply at the corners, which changes how much of it is worth boarding. We factor that in at survey stage.
Our services in New Cross
Five ways we keep New Cross 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 New Cross lofts are finished in half a day.
Loft boarding
Storage-readyA squared, edged deck reached from the hatch, with the eaves left open so the roof keeps breathing. Sized to what you will actually use rather than the whole New Cross footprint.
Loft ladders
Fitted in a dayThe thing that turns a loft you avoid into one you use. Grab rails and a boarded landing area where the design allows.
Loft makeovers
All-in-oneFor New Cross homeowners who want the roof space to stop being a problem and start being storage: everything, in a day.
Not sure what your New Cross 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 New Cross and the surrounding area
Deptford and Lewisham are all covered by the team that works New Cross, which is why we can usually offer a survey slot within the same week rather than the same month.
In the loft
Loft work in and around New Cross
Examples of the work we carry out across the area — insulation, boarding, access and full makeovers.
Questions & answers
New Cross 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 New Cross loft is established at survey and priced separately.
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 New Cross property has a room in the roof and depth is constrained, we use 40mm multifoil at rafter level instead.
How long does the work take in a typical New Cross home?
A straightforward insulation job in a three-bedroom New Cross property is a half-day. Larger, cluttered or awkward-access lofts take longer, and stripping out failed material adds time — all of which is established at survey and reflected in the quote.
What homeowners say
Reviews from New Cross 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 New Cross 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 New Cross home?
Tell us about your New Cross loft and we will arrange a survey, usually within the same week.