Gwynedd · Wales
uPVC window & door repair in Caernarfon, Gwynedd
Problem with your window, door or sill in Caernarfon? We put it right where it is, match it on site and guarantee the work for a year.
- Repairs from £95
- Damage during building work
- Chips and dents
uPVC repair in Caernarfon without replacing anything
Builders and developers use us for snagging repairs too. We fill and refinish the damage so it blends into the frame, woodgrain finishes included. Common call-outs are for holes from removed fittings and alarms and burns on sills, on white uPVC, window frames & sills and doors & door panels.
You get a one-year guarantee, the same in Caernarfon as everywhere else we work. Warm soapy water and a soft cloth are all it needs. Avoid solvents and abrasive cleaners.
- Location
- Caernarfon (LL55)
- Region
- Gwynedd
- Warranty
- A year, on every repair
- Price
- From £95. Free, fixed quote from pictures
- Phone
- 0345 017 0787
- Updated
- 23 October 2026
Why repair rather than replace?
Replacing the frame or sill costs far more, and it may not match the rest after years of weathering. A repair keeps the original. Repairs from £95, with every job priced individually. A few things move the price: access, material, the extent of the damage and whether we can do several items together. Photos let us give you a fixed figure.
Why Caernarfon clients choose us
- CHAS, Constructionline and SafeContractor accredited
- One-year guarantee on every repair
- No need to remove anything
- Honest advice, even when it means no job
See our pricing.
Also near Caernarfon
More services for Caernarfon
What uPVC repair costs
Prices start from £95. Each job gets its own fixed quote. This is what makes a difference:
- Doing more than one item at once
- The material and finish
- Unusual colours or finishes
- Whether it’s a chip, crack, burn or wear
The price reflects the work involved, not your postcode. You’ll see the full price before you book, with nothing added on the day.
Quotes from your photos
When you take your pictures, these tips help us give you a firm price:
- Details of any past repairs
- A coin or ruler next to the damage for scale
- Good light, ideally daylight, without flash glare
- Where you are, by postcode
There is no need for us to visit first. Photos are enough for us to price nearly every job: we need a close-up, a wider picture and your postcode, and we will reply with a fixed price.
When to call us in Caernarfon
uPVC is tough but not indestructible: ladders and building work leave scratches and chips, candles and cigarettes burn sills, and old fittings leave holes.
Get in touch if you’ve noticed any of these:
- Holes from removed fittings and alarms
- Chips and dents
- Damage during building work
- Burns on sills
What to look for in a quote
- How long it needs to cure
- What aftercare is recommended
- Who will actually do the work
- How your room will be protected
About Caernarfon
Caernarfon is about 25 miles south-west of Bae Colwyn, in Gwynedd. Customers in Caernarfon get the same service as everywhere else we cover: a fixed price from your photos, then a visit to do the work. We cover all 165 towns and villages across Gwynedd, from the larger towns to small villages. Our jobs stretch from Caernarfon to Liverpool (58 miles away).
All of LL55 is covered. Local streets include Castle Square, Cefn Talar and Lon Ysgol Rad, and we cover them all. Being close to the A4085 and A4086, Caernarfon is easy for our technicians to reach. Close by, we cover Llanbeblig (1 mile south-east), Waterloo Port (1 mile north), Caeathro (1 mile south-east), Bontnewydd (2 miles south) and Dinas (3 miles south). Larger places within reach include Bangor (8 miles north-east), Bethesda (9 miles east), Hirael (9 miles north-east), Upper Bangor (8 miles north-east), Glanadda (8 miles north-east) and Gerlan (9 miles east). Caernarfon is one of the larger places we cover in Gwynedd.
Local landmarks in Caernarfon
In Caernarfon, that means homes near Castle Square English Presbyterian Church, Caernarvon National School and Ysgol Y Gelli. Well-known places in the area include Seiont (0.7 miles south-west) and Twthill (less than half a mile north-west). For a walk, there’s Llyn Rhos-ddu and Twthill.
Caernarfon questions
Will there be a smell?
Some materials have a smell while they’re applied, which is why we ventilate. It fades as everything cures.
Is there a call-out fee?
No. Our quotes include travel, with the same prices everywhere we work.
Is a repair better than a new one?
Normally, when the rest is in good condition. A repair avoids removal and making good. If replacing would be better, we’ll say so.
Is it messy?
No. The work area is masked and covered, and we take our waste away with us.
What happens if you find more damage?
If we find something the photos didn’t show, we explain it first. You decide whether to go ahead.
Can you repair a burn on a uPVC sill?
Yes. We fill and refinish the burnt area to match.
Is my repair covered?
All our work carries our one-year guarantee. Ask us what it covers when you get your quote.
How do I get a price for uPVC repair in Caernarfon?
Prices start from £95. Because every job differs, we price from pictures. You will get a fixed figure before you book.
Should I try a DIY kit first?
For a hairline mark somewhere you’ll never see, a kit may be enough. For anything you look at every day, anything that has rusted, cracked or holed, or anything on a coloured surface, a professional repair is worth it.
It’s tempting to reach for a kit, but the repairs we redo most often are DIY ones that have discoloured or lifted. Getting it right first time is generally cheaper.
Landlord and trade work in Caernarfon
Landlords, letting agents and housing providers in Caernarfon use us as well as homeowners. A repair between tenants keeps the property empty for less time, and it costs much less than replacing.
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.
What we can’t put right
Honesty matters more than a booking, so here’s what a repair won’t do:
- Failed or misted double glazing units
- Broken locks, hinges or mechanisms
- Frames that are warped or out of square
Not sure? Send photos and we will give you a straight answer.
Surfaces we repair
- Coloured and woodgrain uPVC
- Doors & door panels
- Conservatory frames
- Window frames & sills
- White uPVC
How it works
On the day itself, there is little for you to do. Let us in and show us the room, and we will get on with it. Most visits take a few hours, including clearing up.
- We start by cleaning the frame.
- We fill scratches, chips and holes.
- We sand the repair smooth.
- We match the colour, including woodgrain finishes.
- We blend the repair into the surrounding surface.
How to prepare
- Keep pets and children out of the room while we work
- Clear toiletries, mats and anything else from around the area
- Keep a parking space free if you can
How to get a price
For a price in Caernarfon, photos are the quickest way: a close-up, a wider shot and your postcode. You’ll get a fixed quote with dates to choose from.
Related advice
About our accreditations · Every repair comes with a one-year guarantee.
