
SuperQuilt multifoil insulation
A/A+ fire ratedA/A+ fire rated and around 40mm thick. For Kew properties where deepening the rafters is impractical, this is what makes the numbers work.
South West London loft specialists
Loft insulation, boarding, ladders and complete makeovers for homes throughout Kew. Free survey, fixed written quote, no call-out charge — and an honest answer if your loft turns out not to need anything.

Why it matters
Which is why a free survey is worth half an hour of your time — the measurement itself usually settles whether a Kew loft is worth spending anything on.
Kew's homes
Kew is a good illustration of how South West London was built. The stock here runs to substantial Victorian and Edwardian houses, interwar semis and detached homes, and a large number of period conversions, and the roofs are predominantly well-proportioned pitched roofs with good head height, frequently already converted or part-converted. Within a single street you can find a loft you can stand up and walk around in, and one three doors along where the only sensible approach is to work on your knees.
That variation is exactly why we survey before quoting. Two lofts of identical floor area can differ by a substantial margin in price because one has 150mm joists and a wide hatch, and the other has shallow, irregular timbers, a 400mm opening and a cold water tank sitting in the middle of the run.
Locally, a high proportion of lofts here have already been converted or partly converted, which moves the insulation from the floor to the rafters — worth knowing before you compare quotes.
Our services in Kew
Every one of these begins with the same free survey and ends with a fixed price agreed before anything starts.

A/A+ fire rated and around 40mm thick. For Kew properties where deepening the rafters is impractical, this is what makes the numbers work.

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

Storage that does not flatten your insulation. We raise the deck on battens so the full depth survives underneath — the version most Kew lofts should have had first time.

Many older Kew 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.

Insulation, boarding, lighting and a ladder handled together in one visit — cheaper and better sequenced than buying the four separately.
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
Our Kew coverage extends naturally into Richmond and Isleworth and the surrounding streets. There is no travel surcharge and no minimum job size within the area.
In the loft
Examples of the work we carry out across the area — insulation, boarding, access and full makeovers.



Questions & answers
We do. Coverage extends across Kew and the neighbouring areas, and we are happy to confirm your specific postcode over the phone before booking anything.
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.
Certainly. Doing the ladder in the same visit means the boarding is planned around where the ladder lands, which is considerably better than retrofitting one to a deck that was not designed for it.
Not if it is done properly. Insulating the floor makes the roof space colder, so moisture condenses more readily — the defence is the ventilation path at the eaves. Blocking it with insulation is what creates damp lofts. We keep it clear on every job. Our ventilation guide explains the mechanism.
Half a day for insulation alone; a full day for a combined job with boarding, lighting and a ladder. Very large Kew lofts or heavy strip-outs occasionally run into a second morning, and we tell you that in advance.
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
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How much does loft insulation cost in London? — one of our guides, written by the surveyors who assess lofts across Kew 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 Kew loft, measure what is there and tell you honestly whether it needs work. No charge either way.