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OAKWELL Roofing Contractors
Finished dormer with composite cladding and a tiled main roof

Services

Dormer and loft-conversion roofs

The roofing side of loft conversions. Flat GRP dormer tops, tiled or clad cheeks, and the new roof tied back into the old one so it never leaks at the join.

A loft conversion puts a new roof inside an old one, and the join between the two is where leaks happen. We handle the roofing side of dormers and loft conversions across West Yorkshire: the flat or pitched roof on top, the cladding or tiling on the cheeks and face, the leadwork where new meets old, and the re-tiling of the main roof around the dormer.

What we do on a dormer

  • GRP flat roof on the dormer top, built as a warm roof with proper falls, drips and upstands.
  • Pitched dormer roofs tiled or slated to match the main roof.
  • Cheeks and face in composite cladding, tile-hanging or slate-hanging.
  • Lead soakers, flashings and aprons where the dormer meets the main roof.
  • Re-tiling the main roof around the dormer, with new membrane and battens where the old roof has been opened up.
  • Gutters and downpipes to the dormer, run into the existing rainwater system.
  • Roof windows in the main roof slope where the design has them. See roof lanterns and Velux windows.

Working with your builder

Most of our dormer work is for builders and loft companies who want a roofer they can trust to turn up when the structure is ready and leave it weathertight. We fit in with the programme, keep the site tidy and sort any detail that the drawings did not quite cover. Homeowners managing their own conversion can book us directly.

Full re-roof with a dormer

If your roof is due for replacement anyway, doing the dormer and the re-roof together is cheaper than doing them separately, because the scaffold, skip and labour are shared, and the finished roof is one guaranteed job rather than two.

Examples

Dormer and loft-conversion roofs we've done

Good to know

Dormer and loft-conversion roofs: questions people ask

If yours isn't here, call or message and we'll give you a straight answer.

Do you build the dormer or just roof it?

We do the roofing and external cladding. The structural work (steel, floor, stud walls) is done by your builder or loft company, and we come in to make it weathertight and finished outside. We regularly work alongside builders on this and can recommend one if you need it.

What goes on top of a dormer?

Usually a GRP fibreglass flat roof with a slight fall, built as a warm roof. It is seamless, light and guaranteed for 25 years. On pitched dormers we tile or slate to match the main roof.

What are the options for the dormer cheeks and face?

Composite cladding (such as Cedral) in a range of colours, tile-hanging to match the roof, or slate-hanging on period property. We will show you samples and photos of each.

Should I re-roof the rest of the roof at the same time?

If the main roof is near the end of its life, yes: the scaffold is already up and the new dormer will outlast the old roof around it. If the roof is sound, we tie the new work into it carefully and leave it alone.

Get a quote

Ask us about dormers and loft conversions

A few details and a photo if you have one, and Lewis will call you back.

How urgent?

Want someone to look at your roof?

Call, send a photo on WhatsApp, or request a written quote. We come out, have a proper look, and put the price in writing.

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