SuperQuilt multifoil insulation
A/A+ fire ratedWhere a Blackheath loft has already been converted, insulation has to follow the rafters rather than the floor. SuperQuilt does that in 40mm instead of the 200mm-plus a wool build-up would need.
South East London loft specialists
Loft insulation in Blackheath
Our installers work in Blackheath and across the wider South East London area every week, which means we know what is behind the hatch before we open it. That familiarity is why our quotes hold and why the job usually takes a day rather than three.
Free survey in Blackheath
Fixed written price
No call-out charge
Why it matters
The case for insulating your Blackheath 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
Put against current energy prices, a Blackheath loft still carrying 100mm of settled wool is costing its owner money every single winter it stays that way.
Blackheath's homes
The character of Blackheath roofs
Blackheath is a good illustration of how South East London was built. The stock here runs to Victorian and Edwardian terraces on the older high ground, extensive interwar semi-detached suburbs, and post-war estates, and the roofs are predominantly pitched tile and slate roofs with reasonable head height, and hipped ends on the interwar semis that reduce the usable void. 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, hipped roofs on 1930s semis cut the usable loft area down sharply at the corners, which changes how much of it is worth boarding — worth knowing before you compare quotes.
Our services in Blackheath
Five ways we keep Blackheath 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 Blackheath homes this is the single highest-value thing you can do to the building.
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 Blackheath 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 Blackheath home actually has.
Loft makeovers
All-in-oneThe whole loft dealt with at once, for one fixed price. Most Blackheath properties are finished within a day.
Not sure what your Blackheath 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 Blackheath and the surrounding area
Our Blackheath coverage extends naturally into Greenwich and Brockley and the surrounding streets. There is no travel surcharge and no minimum job size within the area.
In the loft
Loft work in and around Blackheath
Examples of the work we carry out across the area — insulation, boarding, access and full makeovers.
Questions & answers
Blackheath loft insulation — common questions
Can I still use my Blackheath loft for storage afterwards?
Absolutely. The only wrong way to do it is to board flat onto the joists. We raise the deck on battens or loft legs, board it in tongue-and-groove panels and leave the eaves clear so the roof keeps ventilating.
Can you fit a loft ladder at the same time?
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.
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 Blackheath loft is established at survey and priced separately.
What homeowners say
Reviews from Blackheath customers
★★★★★
Placeholder review 1 — paste a real customer quote about your work in Blackheath here.Customer nameBlackheath · replace with the review date
★★★★★
Placeholder review 2 — paste a real customer quote about your work in Blackheath here.Customer nameBlackheath · replace with the review date
★★★★★
Placeholder review 3 — paste a real customer quote about your work in Blackheath here.Customer nameBlackheath · replace with the review date
★★★★★
Placeholder review 4 — paste a real customer quote about your work in Blackheath here.Customer nameBlackheath · replace with the review date
Note for the site owner: these four review cards are placeholders. Replace the quotes and names below with real reviews from your Google Business Profile, Checkatrade or Trustpilot before you launch. Review schema has deliberately been left out until the reviews are genuine — marking up invented reviews breaches Google's guidelines.
Worth reading before you book
SuperQuilt vs mineral wool — one of our guides, written by the surveyors who assess lofts across Blackheath 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 Blackheath home?
A free survey, an itemised fixed quote, and a loft that stops costing you money every winter. That is the Blackheath offer.