Monmouthshire · Wales
uPVC window & door repair in Gwndy, Monmouthshire
Fixed-price uPVC repair in Gwndy and the surrounding area, typically in one visit.
- Repairs from £95
- Scratches from ladders and furniture
- Burns on sills
About our uPVC repair in Gwndy
We fill and refinish the damage so it blends into the frame, including woodgrain finishes. Builders and developers use us for snagging repairs too. Whether it’s holes from removed fittings and alarms and burns on sills, we can help, whatever the material.
All our work is covered by our one-year guarantee, wherever you are in Monmouthshire. Clean with warm soapy water and a soft cloth. Avoid solvents and abrasive cleaners.
- Area
- Gwndy (NP26)
- County
- Monmouthshire
- Guarantee
- 12 months on all our work
- Price
- From £95. Free and fixed, from your pictures
- Phone
- 0345 017 0787
- Last updated
- 23 October 2026
When to call us in Gwndy
uPVC is hard-wearing, but it does get damaged: ladders and building work leave scratches and chips, candles and cigarettes mark sills, and removed fittings leave holes.
Contact us if you’ve noticed any of these:
- Burns on sills
- Scratches from ladders and furniture
- Chips and dents
- Holes from removed fittings and alarms
Comparing quotes
- How soon you can use it again
- What happens if they find more damage
- A fixed quote, and whether VAT is included
- Whether cleaning and preparation are in the price
Where we work around Gwndy
Gwndy (Welsh: Undy) is about 7 miles north of Portishead, in Monmouthshire. Jobs in Gwndy are booked in like any other job: a fixed quote from your photos, and a technician at your door on the day. We work in 115 places across Monmouthshire. Our nearest city page is Birmingham, about 73 miles away.
Our visits in NP26 work the same way as everywhere else we cover. We regularly work on streets such as Church Road, Manor Chase and Tredegar Drive and the roads around them. Neighbouring places we cover include Knollbury (1 mile north-west), Whitewall Common (1 mile south-west), Magor (1 mile west), Summerleaze (2 miles south) and Redwick (2 miles south-west). Within a short drive, we also cover Chepstow (7 miles north-east), Cil-y-coed (3 miles east), Bulwark (7 miles north-east), Usk (9 miles north-west), Sedbury (8 miles north-east) and Llanbadoc (9 miles north-west). As one of the bigger places in Monmouthshire, Gwndy sees plenty of our work.
What’s near Gwndy
Our clients here include homes close to St Mary's Church, Undy C.P. School and The Wheatsheaf Inn, among other places. Gwndy’s nearest station is Severn Tunnel Junction station, about 1.7 miles east. Well-known places in the area include Caldicot Castle Museum (3.3 miles east) and Pencoed Castle (2.2 miles north-west). For a walk, there’s Magor Marsh and Wilcrick Hill.
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. Prices start from £95. It helps to know what pushes a price up or down: access, material, the extent of the damage and whether we can do several items together. Send photos and you’ll get a fixed figure.
Why choose Surface Doctor in Gwndy
- Straight answers about what a repair can do
- Colour mixed on the day to match
- One visit for most repairs
- CHAS, Constructionline and SafeContractor accredited
See our pricing.
Honest limits
Honesty matters more than a booking, so here’s what a repair can’t fix:
- Failed or misted double glazing units
- Broken locks, hinges or mechanisms
- Frames that are warped or out of square
Send us pictures and we’ll tell you honestly.
Materials we repair
- Doors & door panels
- Conservatory frames
- Coloured and woodgrain uPVC
- White uPVC
- Window frames & sills
What uPVC repair costs
Repairs from £95. Every quote is fixed and free. What we take into account:
- Doing more than one item at once
- Any earlier repairs that need removing first
- The size and number of damaged areas
- What the surface is made of
There are no surprise extras on the day. The price we quote from your photos is the price you pay, unless the damage turns out to be different, in which case we talk to you first.
Send pictures for a quote
Photographing the damage takes a minute, and it saves a visit. Please include:
- Any details about the material
- A photo taken from further back
- A coin or ruler next to the damage for scale
- A close-up of the damage, in focus
You don’t need a survey visit. Nearly every job can be priced from photos: we need a close-up, a wider picture and your postcode, and we’ll come back to you with a fixed figure.
Landlords, agents and businesses in Gwndy
We regularly price jobs from inventory or check-out photos. That means we can quote before you even visit the property, and we liaise with tenants about access if you’d like us to.
Rental properties take more wear, 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.
The process
Expect a friendly, tidy visit. We agree the arrival time in advance, protect the area, and get on with the job, which normally takes a few hours. If we find something your pictures didn’t show, we’ll explain it before carrying on.
- First the frame or panel is cleaned.
- We fill scratches, chips and holes.
- We smooth the repair.
- The finish is colour matched, woodgrain included.
- We blend the repair into the surrounding surface.
Getting ready for the visit
- Keep a parking space free if you can
- Tell us about parking, stairs or access
- Make sure the area is dry
Get a quote
Ring 0345 017 0787, or send us pictures through the quote form. With one close-up and one wider picture, we can price the job the same day in most cases.
Read more
Questions from Gwndy
Is a repair better than a new one?
Generally, yes. A repair skips the removal, fitting and redecorating. We’ll be honest if it’s not worth it.
Is my repair covered?
Yes: twelve months. If there is a problem with the work in that time, we come back and put it right.
Can I add another job to the visit?
Yes, and it’s often cheaper. Just add the extra items to your pictures and you will get one combined price.
Are you a vetted contractor?
We’re accredited with CHAS, Constructionline, SafeContractor, SMAS Worksafe and Builder’s Profile.
Do I have to be there?
Yes. We need access to the room while we work, at a time that suits you.
When can you do it?
That depends on our diary for your area. We’ll offer you dates when we send your quote.
Do you do work for letting agents?
Yes. We work for landlords, agents, builders and businesses as well as householders across Monmouthshire.
Will you leave a mess?
Dust sheets and masking go down before we start, and tidy up before we leave.
DIY kit or professional repair?
It’s tempting to reach for a kit, but many of the jobs we do start with putting right a DIY repair. Getting it right first time is normally cheaper.
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.
Towns and villages near Gwndy
Also in Gwndy
About our accreditations · Every repair comes with a one-year guarantee.
