Pembrokeshire · Wales

uPVC window & door repair in Thornton, Pembrokeshire

uPVC repair in Thornton without the cost of replacing. Get a fixed quote from your photos, then we come to you.

  • Repairs from £95
  • Burns on sills
  • Scratches from ladders and furniture
Surface Doctor technician repairing a wooden kitchen worktop

Trusted uPVC repair in Thornton

How the visit works

Your technician turns up at the time we agreed with you and looks over the damage before anything else. Dust sheets and masking tape go down before we open a single tin. Most visits take a few hours, and we leave the room as we found it.

  1. We start by cleaning the frame.
  2. Next we fill the damage.
  3. We sand the repair smooth.
  4. The finish is colour matched, woodgrain included.
  5. The repair is blended into the surface around it.

Getting ready for the visit

  • Keep pets and children out of the room while we work
  • Let the surface dry out before the visit
  • Have somewhere for us to park nearby if possible

Get a quote

Most customers in Thornton get their price from photos. Tell us what happened and where you are, and we will send back a fixed quote and some dates.

Get a fixed price

Related advice

How we handle uPVC repair in Thornton

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 scratches from ladders and furniture and chips and dents, we can generally put it right.

You get a one-year guarantee, the same in Thornton as everywhere else we work. Warm soapy water and a soft cloth are all it needs. Don’t use solvents or scourers.

Area
Thornton (SA73)
Area hub
Pembrokeshire
Guarantee
12 months on all our work
Quotes
From £95. Free and fixed, from your pictures
Call
0345 017 0787
Updated
23 October 2026
Before and after: a chipped white edge filled and refinished

Should you replace it?

A new window, door or sill is a much bigger job, and it may not match the rest after years of weathering. Repairing the damage keeps the original. Prices start from £95. Rather than charging by the hour, we price the entire job up front. It depends on the damage, the material and access, and doing several items at once reduces it.

Why choose Surface Doctor in Thornton

  • Every repair guaranteed for a year
  • Honest advice, even when it means no job
  • No extra charge for your area
  • Free fixed quotes from pictures

Take a look at our full price list.

What affects the price in Thornton

Repairs from £95. We price every job individually. The main factors are:

  • Where the damage is and how we get to it
  • How many items we do on one visit
  • Whether old repairs or coatings need taking off
  • What the surface is made of

Set against the cost of replacement, repairing normally costs far less, because there is no removal, plumbing or making good. Your fixed quote shows exactly what’s included.

How to get a fixed price

We price nearly every job from photos. This is what to send:

  • Your postcode, so we can check dates
  • One sharp close-up of the damage
  • Daylight if possible, and no flash reflection
  • Any details about the material

Call 0345 017 0787 or use the quote form. With a clear picture of the damage and one of the entire window, door or sill, we can price the job without visiting.

Do you need uPVC repair in Thornton?

uPVC is hard-wearing, but it does get damaged: ladders, tools and building work scratch and chip it, candles and cigarettes mark sills, and old fittings leave holes.

Customers normally contact us about:

  • Chips and dents
  • Damage during building work
  • Holes from removed fittings and alarms
  • Scratches from ladders and furniture

Before you book anyone

  • If travel is included in the price
  • What happens if the damage is worse than the pictures show
  • What aftercare is recommended
  • Whether a trained technician does the job

Choosing a repair company

Landlord and trade work in Thornton

For developers and builders, we fix damage before handover, so there is 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 items every time a tenant leaves is expensive. A repair between tenancies is a cheaper way to keep the property in good order.

Thornton questions

When can you do it?

It depends on the time of year and where you are. Send photos with your postcode and we will reply with the earliest dates.

Do I have to be there?

Yes. We need access to the room while we work, at a time that suits you.

Can you redo someone else’s repair?

Yes, we often do. Removing the old work can add time, and that’s in the quote.

Is there any odour?

A little, depending on the job. Open windows and an extractor fan help.

Can I add another job to the visit?

Yes. Combining jobs on one visit brings the cost down. Send pictures of everything you’d like done.

Are you a vetted contractor?

Yes. Our accreditations include CHAS, Constructionline and SafeContractor. The full list is on our accreditations page.

Is it messy?

We protect the room with dust sheets and masking first, and we clean up when we’ve finished.

What happens if you find more damage?

Your quote covers the damage in the photos. If there is more, we’ll tell you before starting.

When we’d advise against a repair

In fairness, there are a few things a repair won’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 photos and we will say what we think before booking.

What we work on

  • Conservatory frames
  • Doors & door panels
  • Window frames & sills
  • White uPVC
  • Coloured and woodgrain uPVC

Where we work around Thornton

Thornton is about 1 mile north of Milford Haven, in Pembrokeshire. We agree a date that works for you, and we will give you an arrival time in advance, so there is no waiting around. We work in 223 places across Pembrokeshire.

Jobs in SA73 are booked in the same way as anywhere else. We also cover the places around Thornton: Priory (1 mile south), Liddeston (1 mile south-west), Steynton (1 mile east), Haven's Head (1 mile south) and Milford Haven (1 mile south). Further out, we also cover Haverfordwest (6 miles north-east), Pembroke (7 miles south-east), Pembroke Dock (5 miles south-east), The Marsh (6 miles north-east), Dinbych-y-Pysgod (15 miles east) and The Green (15 miles east).

Local landmarks in Thornton

In Thornton, that means homes near St Francis V.R.C. School, Church Of St Peter & St Cewydd and The Priory Inn. The closest station to Thornton is Milford Haven station, about 1 mile south. A little further out are South Pembrokeshire Hospital (4.4 miles south-east) and Castle Pill (1.4 miles south-east). The countryside around Thornton includes Hubberstown Pill and Boltonhill.

Map of Thornton © OpenStreetMap contributors

DIY kit or professional repair?

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.

If you are set on a kit, follow its instructions closely, and give it the full curing time. If it doesn’t work out, we can still repair it properly.

CHAS accredited contractor and Constructionline logos SafeContractor, SMAS Worksafe and Builder’s Profile logos

About our accreditations · Every repair comes with a one-year guarantee.

Read what customers say about us on Trustpilot.