SuperQuilt multifoil insulation
A/A+ fire ratedAt roughly 40mm, multifoil delivers serious performance without stealing headroom — which is why it is the answer for Barnehurst homes with a room in the roof or a sloping ceiling.
South East London loft specialists
Loft insulation in Barnehurst
Loft insulation, boarding, ladders and complete makeovers for homes throughout Barnehurst. Free survey, fixed written quote, no call-out charge — and an honest answer if your loft turns out not to need anything.
Free survey in Barnehurst
Fixed written price
No call-out charge
Why it matters
The case for insulating your Barnehurst 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
Those figures are national, but the logic is entirely local: the roof over a Barnehurst house is the cheapest part of it to improve, and the part losing the most.
Barnehurst's homes
What we find in Barnehurst roof spaces
The roofs over Barnehurst are mostly pitched tile and slate roofs with reasonable head height, and hipped ends on the interwar semis that reduce the usable void, and they were built during the 1880s through the 1930s for a housing market with no expectation of thermal performance. Insulation arrived later, retrofitted into spaces never designed to accommodate it, and the results vary enormously from street to street.
On survey we routinely find the same handful of problems: material compressed to a fraction of its depth by boards laid straight onto the joists, insulation packed hard into the eaves and sealing off the roof's only ventilation path, hatches left as bare uninsulated panels, and recessed downlighters buried under wool. None of these are exotic and all of them are fixable — but they need finding first.
Hipped roofs on 1930s semis cut the usable loft area down sharply at the corners, which changes how much of it is worth boarding, which is one more reason we measure rather than assume.
Our services in Barnehurst
Five ways we keep Barnehurst 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 depthMineral wool cross-laid to the 270mm depth current regulations recommend. For most Barnehurst homes this is the single highest-value thing you can do to the building.
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 Barnehurst 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-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 Barnehurst 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 Barnehurst and the surrounding area
We are in and around Barnehurst most weeks, and the same teams cover Bexleyheath and Welling. Coverage across South East London is continuous rather than patchy, so a postcode on the boundary is not a problem.
In the loft
Loft work in and around Barnehurst
Examples of the work we carry out across the area — insulation, boarding, access and full makeovers.
Questions & answers
Barnehurst loft insulation — common questions
Will insulating my loft cause damp?
Correctly installed, no. The risk comes from packing material hard into the eaves and sealing off the airflow the roof depends on. We stop the insulation short and use eaves trays where the pitch requires them.
Will this improve my EPC rating?
Very likely. Without documentation an assessor will often default to a pessimistic assumption about what is in the loft, so we make sure you have the paperwork to show them.
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.
How much does loft insulation cost in Barnehurst?
There is no single figure, and anyone offering one for Barnehurst without seeing the loft is guessing. The largest swing factor is almost always whether the existing material can be topped over or has to be stripped out and disposed of. We survey free of charge and quote a fixed price afterwards.
Do I need planning permission in Barnehurst?
Not for insulation, boarding or a ladder. The line falls at conversion — turning the loft into a habitable room — which is a structural job requiring building control sign-off and a different trade entirely.
What insulation depth do you fit?
Full recommended depth of 270mm as standard. Going deeper gives sharply diminishing returns; stopping short leaves money on the table every winter. For sloping ceilings in Barnehurst loft rooms, multifoil at around 40mm is the practical alternative.
What homeowners say
Reviews from Barnehurst 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 Barnehurst 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 Barnehurst home?
We will look at your Barnehurst loft, measure what is there and tell you honestly whether it needs work. No charge either way.