Condensation forms when warm, humid air meets a cold surface — and a roof lantern is the coldest surface in many kitchens. Send photos from Pembroke Dock (SA72) and we'll tell you which it is — with the price agreed in writing before any work.
Signs you need condensation diagnosis and fixes
- Water on the inside of the glass on cold mornings, even without rain
- Black mould at the base of the lantern lining
- Wet window sills elsewhere in the house too
Why it happens
Cold surfaces
Older glass, uninsulated kerbs and un-thermally-broken frames stay cold and collect condensation.
Poor ventilation
Without trickle vents, extraction or an opening vent, moist air has nowhere to go.
Covering Pembroke Dock and nearby
Damp, mild winters keep moss and algae growing on flat roofs and lantern frames, which holds water against seals and blocks weep slots. Regular clearing makes a real difference in wetter areas.
Coastal wind drives rain hard against lanterns, so cappings and ridge seals on the seaward face take the most punishment.
Pembroke Dock is around 29 miles from Carmarthen, and both are within our Dyfed coverage.
Close by, we also cover Milford Haven (4 miles), Haverfordwest (8 miles), Carmarthen (29 miles).
Guide prices for condensation diagnosis and fixes in Pembroke Dock
Guide price for condensation diagnosis and fixes: £145–£495 ex VAT (£174–£594 inc VAT), per visit. Towers or scaffold, where needed, are priced into the quote. Your fixed price is confirmed in writing before any work starts.
Do you need permission in Wales?
Straightforward repairs — resealing, gaskets, cappings, eaves and like-for-like parts — don't normally need building regulations approval in Wales. Replacing the whole lantern or enlarging the opening is different and falls under the Building Regulations 2010 (as applied in Wales); we confirm in writing which route applies before any replacement. Listed buildings in Wales need listed building consent from the local planning authority for alterations, with Cadw guidance on historic buildings; check with the council before changing a lantern on a listed property.
How does it work?
- Send photosWhatsApp or upload a few photos and tell us when it leaks.
- Guide priceWe reply with a guide price and whether a visit is needed.
- Fixed price in writingYou approve the price and the date before anything starts.
- Repair and testWe fix what's failed, water-test where it matters, and send photos.
Condensation diagnosis and fixes in Pembroke Dock: questions
Do you cover Pembroke Dock?
Yes. We cover Pembroke Dock, including the SA72 postcode area, as part of Dyfed. Send photos by WhatsApp or the form for a free guide price, and we'll confirm the fixed price in writing before any work starts.
How do I get a price for condensation diagnosis and fixes in Pembroke Dock?
Send a few photos of the lantern and the problem, with your Pembroke Dock postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
Will new glass stop condensation?
Better glass raises the inner surface temperature and helps, but if the room is very humid, ventilation matters more. We'll tell you which will make the bigger difference.
Is condensation in a lantern normal?
Occasional light condensation on very cold mornings can be. Regular dripping isn't, and can damage linings and cause mould.
Other lantern repairs in Pembroke Dock
- Roof lantern leak repairs in Pembroke Dock
- Glazing bar and capping repairs in Pembroke Dock
- Upstand and kerb repairs in Pembroke Dock
- Misted glass unit replacement in Pembroke Dock
- Flat rooflight and skylight repairs in Pembroke Dock
- Leak investigation and inspection in Pembroke Dock
Condensation diagnosis and fixes near Pembroke Dock
More about condensation diagnosis and fixes · All roof lantern repairs in Pembroke Dock