Cardiff · Wales

uPVC window & door repair in Nantgarw, Cardiff

Problem with your window, door or sill in Nantgarw? We repair it in place, match it on site and back it with a one-year guarantee.

  • Repairs from £95
  • Holes from removed fittings and alarms
  • Damage during building work
Surface Doctor technician repairing a wooden kitchen worktop

Need uPVC repair in Nantgarw?

When a repair is not the answer

Before booking, it’s worth knowing the limits too:

  • Failed or misted double glazing units
  • Broken locks, hinges or mechanisms
  • Frames that are warped or out of square

Send us photos and we will tell you honestly.

Materials we repair

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

uPVC repair in Nantgarw, done in place

We also do snagging repairs for builders. We fill and refinish the damage to match the frame, including woodgrain finishes. We are frequently asked to fix holes from removed fittings and alarms and burns on sills, in window frames & sills, white uPVC and doors & door panels.

You are covered for a year from the day of the repair. If anything isn’t right, ring us and we’ll sort it. Clean with warm soapy water and a soft cloth. Do not use solvents or scourers.

White panel with a damaged edge, shown before and after repair
Location
Nantgarw (CF15)
Area hub
Cardiff
Guarantee
A year, on every repair
Price
From £95. Free, fixed price from pictures
Call
0345 017 0787
Last updated
23 October 2026

Common questions in Nantgarw

Do I need to be at home?

Someone needs to let us in and show us the job. After that, you can carry on with your day.

Are you accredited?

We hold CHAS, Constructionline, SafeContractor, SMAS Worksafe and Builder’s Profile accreditations.

Which areas do you work in?

All of Cardiff, and the rest of the UK. Travel is included in the price.

When can you do it?

We’ll give you dates with your quote. Tell us if you need it done quickly.

Will the price change on the day?

Your quote covers the damage in the pictures. Anything extra is discussed before we begin.

Is the work guaranteed?

Every repair comes with our one-year guarantee. Ask us what it covers when you get your quote.

Do you charge for travel?

No. Our quotes include travel, with the same prices everywhere we work.

It’s been repaired before. Can you still fix it?

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

Prices and what affects them

Prices start from £95. We price every job individually, from your photos. The main factors are:

  • How many items we do on one visit
  • The material
  • How easy the damage is to reach
  • Any earlier repairs that need removing first

No two jobs are quite the same, so we price each one individually. What’s damaged, how badly and how easy it is to reach all make a difference, and doing several things on one visit costs less than separate visits.

Quotes from your photos

Almost every job we do is priced from pictures. This is what to send:

  • Daylight if possible, and no flash reflection
  • Any details about the material
  • Details of any past repairs
  • A coin or ruler next to the damage for scale

Upload pictures of the damage and a wider shot of the whole item, and tell us you’re in Nantgarw, and we will come back with a fixed quote.

How the visit works

There’s not much you need to do on the day. Let us in and show us the room, and we’ll get on with it. The job generally runs to a morning or an afternoon, including clearing up.

  1. We start by cleaning the frame.
  2. Scratches, chips and holes are filled.
  3. We smooth the repair.
  4. We colour-match the finish, including woodgrain effects.
  5. We blend the repair into the surrounding surface.

Preparing for the visit

  • Keep pets and children out of the room while we work
  • Open a window if you can
  • Mention if the room is upstairs or in a flat

Getting a price

For a price in Nantgarw, photos are the quickest way: a close-up, a wider shot and your postcode. We reply with a fixed quote and our next available dates.

Send pictures for a quote

Advice

Our work in Nantgarw

Nantgarw is about 2 miles south-west of Caerphilly, in Cardiff. Whether you’re in the middle of Nantgarw or on the outskirts, the service is the same: fixed prices, tidy work and a one-year guarantee. Our technicians cover all 91 towns and villages in Cardiff.

Every address in CF15 is covered. From Queensway, Tai Duffryn and Parc-y-Nant or anywhere nearby, a technician can come to you. Other places close to Nantgarw include Glan-llyn (1 mile south), Groes-wen (1 mile north), Watford Park (1 mile north-east), Tŷ-rhiw (1 mile south) and Ffynnon Taf (1 mile south). Within a short drive, we also cover Cardiff (6 miles south-east), Ely (6 miles south), Castle (6 miles south-east), Adamsdown (7 miles south-east), Roath (7 miles south-east) and Splott (7 miles south-east).

Around Nantgarw

Typical jobs here are in homes near Ffynnon Taf Primary School, St. Cenydd Community School and Cross Keys pub and the streets around them. The closest station to Nantgarw is Trefforest Estate station, about 1 mile west of the centre. A little further out are University of South Wales Art Collection Museum (3.1 miles north-west) and St Martins (2 miles east). For a walk, there’s Craig yr Allt and Glamorgan Canal / Long Wood.

Map of Nantgarw © OpenStreetMap contributors

What we’re called out for in Nantgarw

uPVC is tough but not indestructible: ladders, tools and building work scratch and chip it, candles and cigarettes mark sills, and old fittings leave holes.

The most common problems we are called about are:

  • Damage during building work
  • Scratches from ladders and furniture
  • Chips and dents
  • Burns on sills

Questions to ask before you book

  • Whether the price covers travel
  • What happens if they find more damage
  • Whether cleaning and preparation are in the price
  • What the guarantee covers, and for how long

10 questions to ask before you book

Landlords, agents and businesses in Nantgarw

Rental properties take more wear, and replacing things at every changeover adds up. A repair between tenancies is a cheaper way to keep the property in good order.

Hospitality businesses can’t afford rooms out of action for long, so we keep visits short and tidy. We will fit around changeovers where we can.

Should you replace it?

Replacing the frame 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. We charge the same wherever you are, with no extra for Nantgarw. What changes the price is the job itself: how much damage, what it’s made of and how many items.

Why book with us

  • No need to remove anything
  • Same prices wherever you are
  • Honest advice, even when it means no job
  • Every repair guaranteed for a year

Read our prices page.

Should I try a DIY kit first?

If you do try a kit, read the instructions carefully, ensure the area is clean and completely dry, and give it the full curing time. If it does not work out, we can still repair it properly.

We understand the appeal of fixing it yourself. The risk is that a kit repair hides the damage for a while, then fails, and then the old filler has to be removed first.

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.