Pitched roofs

Dormers & Roof Windows

Dormer roofs, roof lights and roof windows installed and weathered properly, so the extra light does not come with a leak underneath it.

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Light without leaks

Openings That Stay Weathertight

Any opening in a roof is a potential weak point, which is why the flashing detail matters more than the window itself. We install roof windows with the correct flashing kit for the covering they sit in, and re-cover dormer roofs so the cheeks, top and abutments all shed water properly.

The Correct Flashing Kit
Dormer Roofs Re-covered
Existing Windows Re-flashed

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Dormers & Roof Windows by A-List Roofing & Refurbishments in Surrey

Why choose us

What you get with A-List Roofing

The Correct Flashing Kit

Roof windows need a flashing kit matched to the covering — slate, plain tile or profiled tile all differ. The wrong kit leaks.
Dormer Roofs Re-covered

Flat or pitched dormer tops re-covered and tied into the main roof, including the cheeks and side abutments.
Existing Windows Re-flashed

If a roof window is sound but leaking, the flashing rather than the unit is usually at fault and can be replaced.
Tidy Internal Finish

We work carefully around finished interiors and sheet up inside where an installation opens up a ceiling.

Dormers & Roof Windows in progress by A-List Roofing & Refurbishments

Common problems

Why Roof Windows Start To Leak

Most leaking roof windows are not faulty units. The usual causes are a flashing kit intended for a different covering, lead or apron detail that has lifted, or a window fitted at too shallow a pitch for its design. Condensation is also frequently mistaken for a leak — worth ruling out before any work is quoted.

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Our process

How An Installation Runs

Whether it is a new opening or a leaking existing one, the sequence is the same: understand the roof first, then detail the opening to suit it.

Survey The Roof

We check the covering, pitch and structure to confirm what is possible and which flashing system the roof needs.
Quote & Specify

You get a written quote covering the unit, the flashing kit and the making-good, with the options explained.
Install & Weather

The opening is formed or the existing unit removed, then the window is fitted and flashed into the surrounding covering.
Check & Clear

We test the detail, make good around the opening and clear the site inside and out.

All you need to know

Dormer & Roof Window FAQs

Common questions about dormers & roof windows. If yours isn't here, just ask — we're happy to talk it through.

Still have questions?

Can you replace a leaking roof window?

Often the unit is fine and the flashing has failed. We will establish which it is before quoting, so you are not paying for a new window unnecessarily.

Do you re-cover dormer roofs?

Yes. Dormer tops, cheeks and abutments are re-covered and tied back into the main roof so the whole detail works as one.

Will I need planning permission?

Roof windows and dormers can fall under permitted development or need permission depending on the property, its position and any local restrictions. We will flag anything that looks like it needs checking, but the final confirmation comes from your local authority.

Is condensation the same as a leak?

No, though it is often mistaken for one. Condensation typically appears in cold weather and around the frame rather than after rain. Ventilation is usually the fix.

Do you provide free quotes?

Yes, we offer free, no-obligation quotes and honest advice, helping you make informed decisions about your roofing needs without any pressure.

Where we work