Derry · Northern Ireland
uPVC window & door repair in Londonderry, Derry
Damaged window, door or sill in Londonderry? We put it right where it is, mix the colour on the day and back it with a one-year guarantee.
- Repairs from £95
- Burns on sills
- Chips and dents
What we’re called out for in Londonderry
uPVC is hard-wearing, but it does get damaged: ladders, tools and building work scratch and chip it, candles and cigarettes burn sills, and old fittings leave holes.
Common reasons people in Londonderry contact us include:
- Scratches from ladders and furniture
- Damage during building work
- Burns on sills
- Chips and dents
Comparing quotes
- If travel is included in the price
- How your room will be protected
- What happens if the damage is worse than the photos show
- Who turns up on the day
uPVC repair in Londonderry without replacing anything
We also do snagging repairs for builders. The damage is filled and refinished to match the frame, including woodgrain finishes. We work on window frames & sills, conservatory frames and doors & door panels, and people most often call us about scratches from ladders and furniture and chips and dents.
The work is covered for a year after we finish. Just call us if there is a problem and we will come back. Clean with warm soapy water and a soft cloth. Avoid solvents and abrasive cleaners.
- Location
- Londonderry (BT48)
- County
- Derry
- Warranty
- One year on every repair
- Price
- From £95. Fixed and free, based on photos
- Phone
- 0345 017 0787
- Last updated
- 23 October 2026
What affects the price in Londonderry
Prices start from £95. We give every job a fixed quote from photos. This is what makes a difference:
- Whether old repairs or coatings need taking off
- What kind of damage it is
- How easy the damage is to reach
- How many areas need work
A few things move the price: access, material, the extent of the damage and whether we can do several items together. Send pictures and you’ll get a fixed figure.
Getting a price from pictures
You can normally get a fixed price without us visiting. To help us price it:
- Natural light rather than flash
- A close-up of the damage, in focus
- A coin or ruler next to the damage for scale
- The postcode, so we can plan the visit
Getting a price is easy: snap the damage close up and then the entire item, send them to us with your postcode, and we’ll reply with a fixed quote. Quotes are free and no obligation.
Our work in Londonderry
Londonderry is about 13 miles north of Strabane, in Derry. Our work suits any type of property, from flats and terraces to detached houses and new builds, plus businesses and rented homes.
Postcode districts we cover here: BT48. If you’re just outside Londonderry, we cover Strabane (13 miles south), Limavady (15 miles east), Portstewart (27 miles north-east), Coleraine (28 miles east) and Portrush (30 miles north-east). If you’re somewhere remote, ring us first and we’ll plan the trip.
Around Londonderry
Around Londonderry, we work in homes near St Mary's College, Derby Bar and St Cecilia's College, among other places. Also close by are Claremont Presbyterian Church (under half a mile south-east), St. Columb's Park (0.8 miles south-east) and St Anne's Primary School (under half a mile south-west). Nearby you’ll also find Aileach Castle (2.3 miles north-west) and Richmond Centre (1 mile south). The countryside around Londonderry includes Enagh Lough and Holywell Hill.
What we do, step by step
It’s a tidy, low-fuss visit. We confirm the time with you beforehand, cover and mask the work area, then carry out the work, which generally takes a few hours. If anything looks different from your pictures, we’ll talk to you before going ahead.
- We clean the frame or panel.
- We fill scratches, chips and holes.
- The repair is sanded smooth.
- We colour-match the finish, including woodgrain effects.
- The repair is blended into the surface around it.
Before we arrive
- Keep children and pets away from the room on the day
- Open a window if you can
- Mention any earlier repairs or resurfacing
Getting a price
No survey visit is needed: we price from pictures. Use the quote form, or ring 0345 017 0787 to talk it through, and we’ll come back with a fixed figure.
Related advice
Nearby places to Londonderry
What else we do in Londonderry
DIY kit or professional repair?
If you are set on a kit, follow its instructions closely and work on a clean, dry surface, and give it the full curing time. If it fails, we can still put it right.
The difference between a kit and a professional repair is mostly in the preparation and colour. We clean and key the area properly, mix the colour to your surface and finish it to the same sheen, then guarantee it for a year.
Repair or replace: which is better?
A new window, door or sill is a much bigger job, and new uPVC may not match the weathered frames around it. A repair keeps the original. Our uPVC repair starts from £95. Our prices are the same across the UK, so there is no premium for Londonderry. What changes the price is the job itself: the material, the amount of damage and how many items.
Why choose Surface Doctor in Londonderry
- Rooms protected and left tidy
- No extra charge for your area
- Work done at your home or business
- Nothing taken out or refitted
Read our pricing.
Honest limits
We would rather lose a job than do one that will not last, so these are the limits:
- Failed or misted double glazing units
- Broken locks, hinges or mechanisms
- Frames that are warped or out of square
Send us photos and we’ll tell you honestly.
Materials we work on in Londonderry
- White uPVC
- Conservatory frames
- Coloured and woodgrain uPVC
- Window frames & sills
- Doors & door panels
Common questions in Londonderry
Are you accredited?
Yes. Our accreditations include CHAS, Constructionline and SafeContractor. The full list is on our accreditations page.
How soon can you come?
It depends on the time of year and where you are. We’ll offer you dates when we send your quote.
I’m a tenant. Can you help?
Yes, though it’s best to check with your landlord first. Many landlords are happy for a repair to be arranged before the end of a tenancy.
Does someone need to be in?
We need someone to let us in. You do not need to watch us work.
Can you repair several things at once?
Yes. Combining jobs on one visit brings the cost down. Send pictures of everything you’d like done.
What happens if you find more damage?
We will show you and explain before doing anything extra. You will not be charged for anything you haven’t agreed.
Do you cover the entire of Derry?
We work UK-wide, and that includes Londonderry. Prices don’t change with location.
Can you match woodgrain uPVC?
Yes. We recreate the colour and grain by hand.
For landlords and businesses
Rented homes see more wear and tear, and replacing items every time a tenant leaves is expensive. A repair between tenancies is a cheaper way to keep the property in good order.
Hospitality businesses can’t afford rooms out of action for long, so we keep visits short and tidy. We can work around your bookings.
About our accreditations · Every repair comes with a one-year guarantee.
