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RooflightInstallers.co.uk
Dorking · RH4 · Surrey

Rooflight leak repairs in Dorking

Leaks and misting around a rooflight tend to come from a short list of causes. Sealant that has cracked or pulled away. Flashing or membrane that has perished at the edges. Condensation channels blocked with dirt, so water backs up inside the frame. Ponding water lying against the kerb because the roof falls the wrong way. Or a sealed glass unit that has failed and misted between the panes. Our rooflight leak repairs visits in Dorking work through these in turn, with the visit priced before booking.

Guide price from £145 · Charged visit, then repair priced before any work

Guide prices

Diagnostic visit

£145 – £195including VAT at 20%

Roof and inside inspected, cause found, written repair price

Reseal and re-flash

£295 – £645including VAT at 20%

Failed sealant and flashing taken out, joints cleaned, resealed and taped

Upstand or membrane repair

£645 – £1,445including VAT at 20%

Rotten kerb section or roof membrane at the upstand repaired

Guide ranges. The first visit is charged and priced before booking; any repair is priced in writing before work starts. Scaffold, access towers or a crane are priced separately if the job needs them, and building control fees, where a job needs them, are shown as their own line.

Areas around Dorking we cover

Jobs across RH4, RH3 and RH5 are part of our normal cover for Dorking. We are not an office on the high street. Our fitting teams come out to the property from wherever they are working that week. Neighbouring places such as Leatherhead and Reigate are covered on the same terms, so a house on the edge of town is no harder to book than one in the centre.

Included in the work

  • Membrane splits at the upstand cut back and patched
  • Outside inspection of glass, frame, sealant, flashing and roof covering
  • Failed sealant cut out, joints cleaned, dried and resealed
  • Leak or condensation — We work out whether the water is coming from outside or forming inside on cold glass.
  • Upstand height and condition — We measure the kerb and probe the timber for softness.

How a repair visit goes

Most of the effort on a repair visit goes into finding the cause. We start with your account of when it leaks: heavy rain, wind from one direction, or cold mornings, which points towards condensation. That shapes where we look first. Findings are photographed so you can see them for yourself. You then get a clear explanation and, where needed, a written repair quote, fixed before anything further is booked.

Do you need permission in Dorking?

Replacing a rooflight in an English home is a controlled fitting: it has to be self-certified by a scheme-registered installer or notified to building control. We are not registered with a competent person scheme, so replacements we fit are notified with a building notice, and the new unit has to meet current energy limits. Adding a new one usually means a building regulations application, because joists or rafters are trimmed. On the planning side, most house rooflights are permitted development if they project 0.15 m or less; on a side slope the glass must be obscured and fixed unless the opening part is over 1.7 m above the floor.

What to send us

Before booking a visit, send what you can: a photo of the ceiling or reveal where water shows, a photo of the rooflight from outside, the roof covering if you know it, and whether it is one rooflight or several. We use that to price the visit and to bring the right materials.

Common questions in Dorking

Is it condensation or a leak?

Condensation tends to appear on cold mornings, on the inner face of the glass, and runs down the frame. A leak usually follows rain or wind from a particular direction and often stains the ceiling around the opening. Blocked condensation channels can make the two look alike. Photos and a note of when it happens help us narrow it down before the visit.

Do you charge for a leak investigation in Dorking?

Yes. Tracing a leak properly takes time on the roof, a close look at the frame and sometimes a water test, so the visit is charged. We confirm the price before you book, so there are no surprises. If a repair is needed beyond what can be done during the visit, it is quoted separately in writing and you decide whether to go ahead.

Can you replace just the misted glass?

Often, yes. Misting between the panes means the sealed unit has failed, but the frame around it may be perfectly sound. Where the maker's design allows the glass to be changed, we measure the unit and fit a replacement, which costs less than a whole new rooflight. Where it does not, or the frame is also worn out, we explain why replacement is the better option.

Send photos of the problem in Dorking and we will price the visit before you book it.

Rear extension at dusk with lit rooflights and a roof lantern
Ready when you are

Leak repairs in Dorking

Send photos of the problem and we will tell you what a visit costs before booking.

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