5.051 Google reviews5.0 on Yell from 213 ratings
Roof insulation in Brighton, fitted while the roof is open
The cheapest time to add roof insulation in Brighton is while the roof is already open for a re-roof or a new flat roof. Ask for a free quote that prices both together, with no deposit to pay.
Insulate while it's open
Pick the job. It takes about 30 seconds.
Or call 01273 115938. No deposit, no call-out charge.
5.0 on Google51 reviews, all 5 stars
5.0 on Yellfrom 213 ratings
Expert Roofer VerifiedEvery check passed, see our profileClues your roof is losing heat
Poor roof insulation shows up in the house, in the loft and even on the roof itself.
Frost melts first on your roof
On a frosty morning, if your roof is clear while the neighbours' roofs are still white, heat from your house is melting it.
A thin or patchy loft
Loft insulation that's squashed flat, patchy or barely covering the joists does little to stop the heat you pay for from escaping.
Condensation on the rafters
Damp timbers, drips on the underside of the felt or black mould in the loft point to warm air meeting a cold roof without the right ventilation.
Cold rooms under flat roofs
Bedrooms and extensions under old flat roofs are often the coldest rooms in the house, because the deck was never insulated.
A re-roof on the cards
If the roof is due to be stripped anyway, adding insulation now costs far less than coming back to it later.
Warm deck, rafters or loft side
On a flat roof, we build it as a warm deck. The insulation boards go on top of the deck, under the waterproof layer, so the whole structure stays warm and dry and the condensation problems of old cold deck roofs go away. A vapour control layer sits underneath, the boards are fixed down, and then the GRP, EPDM or felt goes on top. Nothing changes inside the room, and the ceiling stays exactly where it is.
On a pitched roof being re-covered, we fit insulation between or over the rafters while they're exposed, with a breathable membrane and the right ventilation gaps so the timbers stay dry. If the roof covering is sound, we insulate from the loft side instead: topping up between and over the joists, keeping the eaves clear for airflow and boarding walkways so the insulation isn't crushed. Either way, the old, compressed material goes away with us.
- Warm deck flat roofs
- Rafter insulation during re-roofs
- Loft insulation topped up
- Eaves ventilation kept clear
- Old insulation taken away
- Priced with your roofing work
Insulating Brighton's older roofs
Brighton's Victorian and Regency houses were built with no roof insulation at all, and many of their attic bedrooms sit directly under the slates. Those rooms are freezing in winter and stifling in summer. Add the rear extensions and dormers with flat roofs that went up across the city in the 1970s and 80s, and there's a lot of cold roof to put right. The damp sea air makes getting the ventilation right as important as the insulation itself.
Recent roof insulation jobs
Straight from our Google reviews
Great service for flat & tiled roof repair. Professional and knowledgeable advice on works required. Good management which gave quick response and completion of works required.
We had an issue with a leak coming from our chimney and on getting up there realised our flat roof had been installed poorly. Brendan was so professional throughout, talking us through everything and not pressuring us to make quick decisions regarding the repair. His team were very efficient and got the job done in 2 days. Brendan kept me updated throughout the job, sending photos of the work. His team left the place spotless, even washing down the roof on completion. Having had a few quotes from some rather suspect companies, these guys are so genuine and clearly take pride in doing the job well. Would recommend and call again if needed.
If you have any roofing work or repairs to be done, then look no further than Sureseal Roofing & Guttering. I have found William and his team to be responsive & professional. They were able to address all my queries and advise wherever necessary. Most importantly their standard of finished work measured upto what had been committed, as well as my expectations of high quality. I whole-heartedly recommend their work.
I am extremely satisfied with the service provided by SURESEAL ROOFING AND GUTTERING LTD. From the initial consultation to the completion of the project, the team was professional, efficient, and thorough. I highly recommend them to anyone in need of roofing services.
Brilliant service from start to finish. The team was friendly, professional, and did a great job on our roof and gutters. Everything was completed on time and to a high standard. Highly recommend Sure Seal Roofing & Guttering!
I recently was looking to fix my roof and I couldn’t be more happy this guys were so professional from the beginning and the job was done at set time and well done! I will 100 % recommended!!!
Pricing roof insulation: what matters
The biggest factor is when you do it. Insulating a flat or pitched roof while it's being replaced adds the materials and a little labour, with no extra scaffold. Doing it on its own from the loft side is a smaller job again. After that it's the area, the type and thickness of insulation, and how easy the loft or roof space is to get into and work in.
What sets the price
- During a re-roof or on its own
- Roof or loft area
- Insulation type and thickness
- Warm deck boards on flat roofs
- Loft access and boarding
- Ventilation work needed
No surprises: the price on your written quote is the price you pay. No deposit.
From your call to a finished job
Tell us what's wrong
Tap the problem, fill in the short form or call Jamie. We respond fast, and emergencies get a call-out 24/7.
Free drone survey
We put a drone over the roof and show you the photos, so you see exactly what we see.
Fixed written quote
One price for the job that's actually needed. No deposit and no call-out charge.
Done and cleared
We do the work, take every bit of waste away and leave the place spotless.
Roof insulation questions
Do building regulations require insulation when I re-roof?
Yes, once the job is big enough. Renewing more than half of a roof's area counts as renovating a thermal element, and the insulation then has to be brought up to the current standard where that is technically and financially sensible. Building control will expect it. That's another reason to insulate while the roof is open.
What is a warm deck flat roof?
It's a flat roof with the insulation on top of the timber deck rather than between the joists underneath. The boards sit under the waterproof membrane, which keeps the deck and joists warm and dry. That stops the condensation that rots old cold deck roofs, and it's the standard way to build a new flat roof now.
Can you insulate a roof without taking the tiles off?
Yes, from the inside. In an ordinary loft, we lay insulation between and over the ceiling joists. In a loft room, rigid boards go between and under the rafters, leaving a ventilation gap behind them. Stripping the roof is only needed if you're re-roofing anyway, and then it's the ideal time.
Will insulating my loft cause condensation?
Not if it's done right. Condensation happens when warm, damp air reaches a cold roof space with no way out. We keep the eaves clear so air can move, fit vents where the roof needs them and use a breathable membrane on re-roofs. Stuffing insulation into the eaves is the mistake that causes trouble.
Is it worth insulating a flat roof extension?
Yes, and it's one of the most noticeable upgrades in a house. Rooms under uninsulated flat roofs lose heat fast in winter and overheat in summer. If your flat roof is due for replacement, building it as a warm deck costs little extra and makes the room below comfortable all year.
Re-roofing soon? Insulate while it's open.
We'll price the insulation alongside the roofing so you see both on one quote.