Carmarthenshire · Wales
uPVC Repair in Cwm-mawr
Our repair technicians come to Cwm-mawr for scratch, chip, burn and hole repairs to uPVC windows, doors and sills. Nothing is taken out, with a one-year guarantee.
- Repairs from £95
- Burns on sills
- Chips and dents

uPVC repair at your home in Cwm-mawr
We fill and refinish the damage so it blends into the frame, including woodgrain finishes. Builders and developers use us for snagging repairs too. If you are dealing with chips and dents and damage during building work, we can help, on conservatory frames, coloured and woodgrain uPVC and white uPVC alike.
We guarantee the work for a year. If there’s a problem with the repair within the year, we return and sort it. Clean with warm soapy water and a soft cloth. Do not use solvents or scourers.
- Area
- Cwm-mawr (SA14, SA15)
- Area hub
- Carmarthenshire
- Warranty
- One year on every repair
- Quotes
- From £95. Free, fixed price from pictures
- Call
- 0345 017 0787
- Last updated
- 23 October 2026

What uPVC repair costs
Repairs from £95. There are no hourly rates or hidden extras. The price depends on:
- What the surface is made of
- Whether it’s a chip, crack, burn or wear
- Doing more than one item at once
- How hard the colour is to match
A repair is priced on what needs doing, not your postcode. You’ll see the full price before booking, with nothing added on the day.
Getting a price from pictures
Most quotes are done from photos alone. To make it quick:
- Your postcode, so we can check dates
- A coin or ruler next to the damage for scale
- A picture taken from further back
- Details of any past repairs
Getting a quote takes a couple of minutes: take one close-up and one wider shot of the window, door or sill, add your postcode and send them over. You will get a fixed quote, not an estimate.
Work for landlords and builders
We’re used to working with agents and managing companies. Send the address, pictures and access details.
We also carry out snagging repairs for builders and developers, fixing chips and scratches before handover. We’re CHAS, Constructionline and SafeContractor accredited.
Can I fix it myself?
If you do try a kit, read the instructions carefully and work on a clean, dry surface, and give it the full curing time. If it fails, we can still put it right.
It’s natural to want to try a repair yourself. The trouble is that kit repairs often look fine at first and then fail, and then the old filler has to be removed first.
Questions from Cwm-mawr
Do you cover Cwm-mawr?
Yes. We cover the whole UK and come to Cwm-mawr. Send us photos for a fixed quote, or call 0345 017 0787.
What information do you need?
Some photos, your postcode and how to reach you. On the day, access to the room.
Will it make a mess?
No. The work area is masked and covered, and we take our waste away with us.
Which areas do you work in?
All of Carmarthenshire, and the rest of the UK. There’s no extra charge for travel.
How much does uPVC repair cost in Cwm-mawr?
Repairs from £95. Every job gets a fixed quote from your photos. Send a close-up and a picture of the entire item with your SA14 postcode.
Can you do more than one item on the same visit?
Yes, and it’s often cheaper. Send pictures of everything together and we’ll quote them together.
Will the price change on the day?
It’s rare, but if it happens we talk to you first. The price only changes if you agree.
Can landlords book you?
Yes. We work for landlords, agents, builders and businesses as well as householders across Carmarthenshire.
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. Repairing the damage keeps the original. Repairs from £95, with every job priced individually. Most people are surprised how affordable a repair is, especially compared with replacing and refitting. Photos let us give you the exact figure.
Why choose Surface Doctor in Cwm-mawr
- Free fixed quotes from pictures
- One price list for the entire UK
- Most jobs done in one visit
- CHAS, Constructionline and SafeContractor accredited
See our prices page.
Nearby places to Cwm-mawr
What else we do in Cwm-mawr
What we can’t put right
Some problems need a builder, plumber or fitter rather than us:
- Failed or misted double glazing units
- Broken locks, hinges or mechanisms
- Frames that are warped or out of square
Not sure? Send pictures and we will give you a straight answer.
What we work on
- Window frames & sills
- White uPVC
- Coloured and woodgrain uPVC
- Doors & door panels
- Conservatory frames
The process
From the moment we arrive, we keep the work contained to the one room. Surfaces nearby are masked off, the job takes a morning or an afternoon, depending on what we find, and we finish by cleaning up and talking you through the result.
- We start by cleaning the frame.
- Next we fill the damage.
- We sand the repair smooth.
- We match the colour, including woodgrain finishes.
- Finally we blend it into the rest of the frame.
Before we arrive
- Clear the area around the damage
- Mention any parking restrictions or tricky access
- Keep a parking space free if you can
How to get a price
Ring 0345 017 0787, or send us pictures through the quote form. With one close-up and one wider picture, we can give you a fixed price.
Advice
Do you need uPVC repair in Cwm-mawr?
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.
If you can see any of these, send us a picture:
- Damage during building work
- Scratches from ladders and furniture
- Burns on sills
- Holes from removed fittings and alarms
Before you book anyone
- How to look after the finish
- Who will actually do the work
- Whether the price is fixed and includes VAT
- How soon you can use it again
Covering Cwm-mawr
Cwm-mawr is about 6 miles west of Ammanford, in Carmarthenshire. Whether you’re in the middle of Cwm-mawr or on the outskirts, we offer exactly the same service: fixed prices, tidy work and a one-year guarantee. Cwm-mawr is one of 195 towns and villages in Carmarthenshire we cover.
Here we cover the SA14 and SA15 postcode area. Jobs here include addresses on Derwen Road, Bethesda Road and Gwendraeth Road. Close by, we cover Drefach (1 mile north-west), Y Tymbl (1 mile south-east), Capel Seion (1 mile west), Pontyberem (2 miles south-west) and Bancffosfelen (3 miles west). Further out, we also cover Llanelli (8 miles south), Carmarthen (9 miles north-west), Llanelli Rural (8 miles south), Bigyn (8 miles south), Wern (8 miles south) and Ammanford (6 miles east).
Landmarks near Cwm-mawr
Our clients here include homes close to Gwendraeth Arms and Ysgol y Gwendraeth, among other places. Further afield, we also cover the area around Mynydd Mawr Hospital (1.7 miles south-east) and Castell y Rhingyll (3.2 miles north-east). Green spaces nearby include Llyn Llech Owain and Pen y Tymbl.
About our accreditations · Every repair comes with a one-year guarantee.

