South East London loft specialists

Loft insulation in Plumstead

A loft that is warm at the ceiling and cold above it, with storage you can reach safely and a light you can switch on: that is what we do for Plumstead homeowners. One survey, one visit, one fixed price.

Free survey in Plumstead Fixed written price No call-out charge
A fitted loft ladder giving safe access to a Plumstead loft

Why it matters

The case for insulating your Plumstead 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 Plumstead property it is the largest single heat loss and the smallest single bill to fix it.

Plumstead's homes

What we find in Plumstead roof spaces

The roofs over Plumstead 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 Plumstead

Five ways we keep Plumstead homes warm

Every one of these begins with the same free survey and ends with a fixed price agreed before anything starts.

Rolls and stacked sheets of SuperFOIL multifoil insulation in a converted London loft

Multifoil earns its place in Plumstead roofs where depth is the binding constraint — period timbers, low headroom, or a conversion already boarded out.

Installer laying timber battens over mineral wool loft insulation ready for boarding

Mineral wool cross-laid to the 270mm depth current regulations recommend. For most Plumstead homes this is the single highest-value thing you can do to the building.

Loft boarding part-laid over insulation with storage boxes and tools beside the hatch

Loft boarding

Storage-ready

Boards laid straight onto joists crush 270mm into 100mm. We batten out instead, so Plumstead homeowners get usable storage and keep the insulation they paid for.

Timber loft ladder lowered onto a landing in a British home

Loft ladders

Fitted in a day

Fitted in a day, finished to match your landing, with the hatch insulated and draught-sealed as part of the same job.

Finished loft makeover used as a bright living room with roof windows

Loft makeovers

All-in-one

One 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 Plumstead 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 Plumstead and the surrounding area

Working across South East London means Plumstead rarely stands alone on the schedule — Greenwich and Welling are all within the same round. If your address sits between them, ring and we will confirm.

See every area we cover →

In the loft

Loft work in and around Plumstead

Examples of the work we carry out across the area — insulation, boarding, access and full makeovers.

Questions & answers

Plumstead loft insulation — common questions

What happens to the water tank and pipes?

Pipes get lagged and the tank gets insulated on the sides and top only. Leaving the base open is deliberate — it is the only thing preventing a frozen tank in a hard winter.

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.

What homeowners say

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Worth reading before you book

SuperQuilt vs mineral wool — one of our guides, written by the surveyors who assess lofts across Plumstead 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 Plumstead home?

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