Sunderland · England
uPVC window & door repair in Castletown, Sunderland
Problem with your window, door or sill in Castletown? We repair it in place, mix the colour on the day and back it with a one-year guarantee.
- Repairs from £95
- Chips and dents
- Damage during building work

uPVC repair at your home in Castletown
We also do snagging repairs for builders. The damage is filled and refinished to match the frame, including woodgrain finishes. Our repair technicians work on coloured and woodgrain uPVC, window frames & sills and conservatory frames, and the jobs we see most are chips and dents and holes from removed fittings and alarms.
We guarantee the work for a year. If there is a problem with the repair within the year, we return and sort it. Warm soapy water and a soft cloth are all it needs. Don’t use solvents or scourers.
- Location
- Castletown (SR5, SR4)
- County
- Sunderland
- Cover
- A year, on every repair
- Quotes
- From £95. Free and fixed, from your photos
- Call
- 0345 017 0787
- Updated
- 23 October 2026

How it works
We begin by going over the job with you. Next, we cover and mask everything nearby and we start. It normally takes a morning or an afternoon, and we’ll tell you if anything changes.
- We clean the frame or panel.
- We fill scratches, chips and holes.
- We sand the repair smooth.
- The finish is colour matched, woodgrain included.
- We blend the repair into the surrounding surface.
How to prepare
- Plan for the room to be out of bounds to pets and children
- Let the surface dry out before the visit
- Keep a parking space free if you can
Get a quote
Getting a price is easy: take a close-up of the damage and a photo from further back, send them over with your postcode, and we’ll reply with a fixed quote. There is no charge for the quote and no obligation.
Advice
DIY repairs versus a professional job
A kit can be fine for a tiny mark out of sight. For damage in plain view, cracks, holes or rust, or coloured finishes, it’s worth having it done properly.
You can buy a DIY kit for most repairs, and they can tidy up a tiny mark. The trouble is colour and preparation: they come in a handful of shades, and if the surface isn’t prepared the repair will not last.
Castletown and nearby
Castletown is about 2 miles north-west of Sunderland, in Sunderland. We agree a date that works for you, and we’ll give you an arrival time in advance, so you are not left waiting in all day. Castletown is one of 75 places in Sunderland where we work. We work right across the region, from Castletown to Newcastle upon Tyne (about 9 miles away).
Here we cover the SR5 and SR4 postcode area. From Dene Road, Cheam Road and Aydon Road or anywhere nearby, a technician can come to you. If you’re just outside Castletown, we cover North Hylton (1 mile north-west), Hylton Castle (1 mile north), South Hylton (1 mile south), Hylton Red House (1 mile north-east) and Ford (1 mile south-east). We also work in nearby towns such as Washington (3 miles west), Houghton-le-Spring (5 miles south), Sunniside (3 miles east), Fulwell (3 miles east), Hendon (3 miles east) and Hetton-le-Hole (6 miles south).
Landmarks near Castletown
Typical jobs here are in homes near Barnes Park, Church of St Mary and The Shipwrights Public House. Other local landmarks include Grindon Hall Christian School (1.4 miles south), Castle View Enterprise Academy (under half a mile north) and Castletown Primary School (under half a mile east). Castletown’s nearest station is East Boldon station, roughly 2.4 miles north-east. Other landmarks nearby include Hylton Castle (0.5 miles north) and Grindon Museum (2 miles south). For a walk, there is Cleadon Hills and WWT Washington.
Repair or replace: which is better?
A new window, door or sill is a much bigger job, and it may not match the rest after years of weathering. A repair keeps the original. Prices start from £95. A few things move the price: the amount of damage, the material, access to the area, and how many jobs we do in one trip. Send pictures and you’ll get a fixed figure.
Why book with us
- Accredited with CHAS, Constructionline and SafeContractor
- Every repair guaranteed for a year
- Fixed prices from your pictures
- No extra charge for your area
Take a look at our full price list.
Common problems we fix in Castletown
uPVC is tough but not indestructible: ladders and building work leave scratches and chips, candles and cigarettes burn sills, and old fittings leave holes.
It’s worth getting a quote if you see:
- Chips and dents
- Holes from removed fittings and alarms
- Burns on sills
- Scratches from ladders and furniture
What your quote should include
- How the colour is matched
- How long the guarantee is and what it covers
- Whether cleaning and preparation are in the price
- How to care for the finish
For landlords and businesses
For developers and builders, we fix damage before handover, so there’s no need to replace a damaged item at the last minute. We can visit several plots in one trip to keep costs down.
Rental properties take more wear, and replacing things at every changeover adds up. Repairing between tenants keeps the property presentable for less.
Nearby places to Castletown
More services for Castletown
Questions from Castletown
Is there a call-out fee?
Travel is included in the price, and we charge the same wherever you are.
Will you leave a mess?
Very little mess: we sheet and mask everything nearby, and we take our waste away with us.
Is there a guarantee?
Every repair comes with a one-year guarantee. Ask us what it covers when you get your quote.
Can tenants book a repair?
We are happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
Can pets and children be at home?
Keep pets and children away from the work area on the day, so the repair isn’t disturbed while it cures.
What happens if you find more damage?
We’ll show you and explain before doing anything extra. You will not be charged for anything you haven’t agreed.
It’s been repaired before. Can you still fix it?
Most of the time. Tell us what was done before.
Can you repair a burn on a uPVC sill?
Yes. The burn is filled and refinished to match.
When we would advise against a repair
A repair isn’t always the answer, and we will tell you before we start. We can’t fix:
- Failed or misted double glazing units
- Broken locks, hinges or mechanisms
- Frames that are warped or out of square
If in doubt, send pictures and we’ll say what we think.
Materials we work on in Castletown
- Conservatory frames
- Doors & door panels
- Coloured and woodgrain uPVC
- White uPVC
- Window frames & sills
Prices and what affects them
Prices start from £95. Quotes are free and the price is fixed. What we look at:
- What the surface is made of
- What kind of damage it is
- Unusual colours or finishes
- How much damage there is
Rather than charging by the hour, we price the entire job up front. It depends on the damage, the material and access.
Getting a price from pictures
When you take your pictures, a few simple things make all the difference:
- One picture of the whole window, door or sill
- Daylight if possible, and no flash reflection
- Where you are, by postcode
- A coin or ruler next to the damage for scale
Most clients in Castletown get their price from photos. Tell us what happened and where you are, and we’ll send back a fixed quote and some dates.
About our accreditations · Every repair comes with a one-year guarantee.

