SuperQuilt multifoil insulation
A/A+ fire ratedAt roughly 40mm, multifoil delivers serious performance without stealing headroom — which is why it is the answer for Coulsdon homes with a room in the roof or a sloping ceiling.
South London loft specialists
Loft insulation in Coulsdon
We insulate lofts across Coulsdon — 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 Coulsdon
Fixed written price
No call-out charge
Why it matters
The case for insulating your Coulsdon 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
None of this requires permissions, scaffolding or structural work. In Coulsdon, as anywhere, it is a day's work with materials that cost little relative to what they save.
Coulsdon's homes
Coulsdon: what a survey usually turns up
Housing across Coulsdon and the surrounding South London area is largely dense Victorian terraces and villas, interwar semis and a substantial amount of purpose-built and converted flats, built through the 1860s 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 — subdivision into flats is very common, so ownership of the roof space is worth establishing before work is booked — and you have most of what a Coulsdon survey is checking for.
Our services in Coulsdon
Five ways we keep Coulsdon 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 Coulsdon 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 Coulsdon lofts should have had first time.
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 Coulsdon home actually has.
Loft makeovers
All-in-oneOne team, one survey, one sequence of work. The insulation depth sets the batten height, the batten height sets the ladder landing — which is why doing it piecemeal costs more.
Not sure what your Coulsdon 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 Coulsdon and the surrounding area
Coulsdon sits within South London, and our teams regularly work in neighbouring areas including South Croydon and Croydon. If you are just outside Coulsdon itself, we almost certainly already cover your street.
In the loft
Loft work in and around Coulsdon
Examples of the work we carry out across the area — insulation, boarding, access and full makeovers.
Questions & answers
Coulsdon loft insulation — common questions
Can I still use my Coulsdon loft for storage afterwards?
You can, and most Coulsdon customers do — but the deck has to sit above the insulation, not on it. That is the whole reason raised boarding exists. Tell us at survey stage if storage matters to you, because it changes how the insulation is planned.
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.
Do you offer free surveys in Coulsdon?
Yes. Every enquiry from Coulsdon 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?
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 Coulsdon loft, we deal with the cause first rather than insulating over it.
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 Coulsdon loft is established at survey and priced separately.
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.
What homeowners say
Reviews from Coulsdon 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 Coulsdon 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 Coulsdon home?
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