(+44) 7900 515 552Velux loft conversion
Roof windows are fitted into the existing roof slope. The roof shape does not change, which usually keeps cost down and can avoid planning permission. It suits lofts that already have enough headroom.
Loft Conversion Offer
Loft conversion specialists
Loft conversions by a roofing specialist.
Convert your roof space into a bedroom, home office or guest suite. One team handles the structure, the dormer roof, Velux windows, electrics, plumbing and decorating, through to the correct building sign-off.
Loft conversions from£20K
- Confederation of Roofing Contractors approved member
- Insurance-backed guarantee
- Free survey and written quote
Get your free loft survey
Tell us about your roof space. We reply with a time for a survey and a written quote.
CORC approved
Verified Confederation of Roofing Contractors membership.
Guaranteed work
An insurance-backed guarantee on our roofing work.
One team
Roof, structure, services and finish under one contract.
Why use a roofer
Can your roofer do a loft conversion? This one can.
A loft conversion changes your roof. The part most likely to fail is the part a roofer builds every day.
Many loft conversion firms are builders who sub the roof out. We are roofers first. We build the structure, the dormer, the flat roof and the Velux openings ourselves, so the weatherproofing is designed in from the first beam and not patched on at the end.
You get one point of contact, one programme and one team on site, from the first build stage to the correct building sign-off.
Loft conversion costGet my fixed quote
Loft conversions from £20K
The price depends on the size of your roof space, the type of conversion and whether you want a bathroom. We survey first and give you a fixed written quote, so you know the number before any work starts.
Velux conversionRooflights in the existing roof, the simplest route
Flat roof dormerExtra headroom and floor space, torch-on flat roof
With en suitePlumbing, tiling and fit-out included in the quote
Loft conversion types
Convert your roof space the right way for your roof
The best way to convert a roof depends on its pitch, height and shape. We survey the loft, then tell you which route gives the most usable room for the money.
Flat roof dormer loft conversion
A dormer pushes the roof slope out to create a box of full-height space with vertical windows. Our dormers are finished with a torch-on flat roof, built and signed off by roofers.
Loft and attic conversion advice
Every house is different. We check head height, roof structure, stair position and your budget, then give you a plain recommendation, even if that means a smaller job than you expected.
How a loft conversion works
From the first build stage to the correct sign-off
The order matters. Here is the real sequence on a typical loft conversion, so you know what happens and when.
Survey, design and drawings
We measure the loft, check head height and roof structure, agree the layout and prepare drawings for building control.
Structure
New floor joists, steel where needed and the stair opening. This is the load-bearing work, done before anything else.
Dormer and roof
The dormer is framed and the roof is made watertight, including the torch-on flat roof, fascias and guttering.
Velux and window installation
Roof windows and dormer windows are fitted and flashed in, so the room is dry and light before the interior starts.
Electrics, plumbing and insulation
First fix wiring and pipework, then insulation to meet building regulations for warmth and sound.
Plastering, decorating and finish
Boarding, plaster, decorating, flooring and the final fixtures.
Building control sign-off
Inspections along the way and the final sign-off, so your conversion is legally a bedroom or living space.
What is included
One quote covers the full loft conversion
You are not chasing a roofer, an electrician, a plumber and a decorator. We manage the whole conversion.
- Structural worksFloor strengthening, steelwork and the new staircase opening.
- Velux and dormer window installationFitted and weatherproofed by the roofing team.
- Flat roof dormer, torch-on finishBuilt by roofers who fit flat roofs every week.
- ElectricsLighting, sockets and consumer unit work.
- PlumbingRadiators, and en suite pipework where included.
- DecoratingPlaster, paint and finishing, so the room is ready to use.
Before you convert your roof
Can my loft be converted?
Most lofts can. These are the checks we make on every survey.
| Check | What we look for |
|---|---|
| Head height | Around 2.2m from floor joist to ridge is the usual starting point. A dormer can add headroom where there is not enough. |
| Roof structure | Traditional cut roofs are simpler to convert than modern trussed roofs, which need extra steelwork. |
| Stairs | The loft needs a safe stair with enough headroom, and a fire-protected route down. |
| Planning | Many loft conversions fall under permitted development. Limits apply to volume, roof height and front slopes, and flats and conservation areas have stricter rules. |
| Building regulations | Always required. Covers structure, fire safety, insulation and stairs, with inspections and a final sign-off. |
| Party wall | If you share a wall with a neighbour, a party wall notice is usually needed before work starts. |
Built by roofers
The roof is where a loft conversion is won or lost
Leaks around dormers and roof windows are the most common problem in poorly built loft conversions. Because we are roofing specialists and CORC approved members, the flat roof, the flashings and the Velux openings are built to the standard we put our name and our guarantee on.
Talk to a roofer about your loftLoft conversion questions
Answers before you ask
How much does a loft conversion cost?
Our loft conversions start from £20K. The final price depends on the size of the loft, whether you choose a Velux or dormer conversion, and whether it includes an en suite. We give a fixed written quote after a free survey.
Do I need planning permission to convert my loft?
Often not. Many loft conversions are permitted development, but there are limits on added volume, roof height and changes to the front roof slope, and flats and conservation areas have tighter rules. We check this at survey and tell you before you commit. Building regulations approval is always needed.
Can you convert a roof space into a bedroom?
Yes. A bedroom needs enough head height, a safe staircase, a protected fire escape route and an escape window or roof window. Building control checks all of this before sign-off, and we build to those requirements.
What is the difference between a Velux and a dormer loft conversion?
A Velux conversion fits roof windows into the existing roof slope and keeps the roof shape. A dormer extends the roof outwards to add headroom and floor space, with vertical windows. We will recommend whichever suits your roof and budget.
How long does a loft conversion take?
A typical dormer loft conversion takes around 8 to 12 weeks on site, once drawings and approvals are in place. We give you a firm programme after the survey.
Why choose a roofer for my loft conversion?
The roof is the most technical, weather-exposed part of the job. A roofing specialist builds and waterproofs the dormer, flat roof and window openings directly, so there is no subcontractor gap between the structure and the roof.
Will you handle building control sign-off?
Yes. We work to the approved drawings, arrange the inspections and take the job through to the correct building sign-off.
Areas we cover
Loft conversions across Surrey, Berkshire and Buckinghamshire.
We survey and build loft conversions in the same areas we cover for roofing, including:
- Amersham
- Addlestone
- Chertsey
- Datchet
- Egham
- High Wycombe
- Maidenhead
- Ottershaw
- Rickmansworth
- Slough
- Staines
- Windsor
- Woking
- Wraysbury
Not on the list? Call us on 07900 515 552 and we will tell you whether we can get to you.
Free loft survey
Ready to convert your roof space?
Send your details and we will arrange a free survey, then post you a fixed written quote. Prefer to talk? Call us.
Book your free survey
Loft conversions from £20K. No obligation.