Cardiff · Wales
uPVC window & door repair in Old St Mellons, Cardiff
Problem with your window, door or sill in Old St Mellons? We repair it in place, mix the colour on the day and back it with a one-year guarantee.
- Repairs from £95
- Holes from removed fittings and alarms
- Damage during building work
What a repair can’t fix
It helps to know what we cannot do too:
- 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 before booking.
Materials we work on in Old St Mellons
- Conservatory frames
- White uPVC
- Doors & door panels
- Coloured and woodgrain uPVC
- Window frames & sills
How we handle uPVC repair in Old St Mellons
We also do snagging repairs for builders. The damage is filled and refinished to match the frame, including woodgrain finishes. We work on white uPVC, window frames & sills and doors & door panels, and common reasons people get in touch are holes from removed fittings and alarms and damage during building work.
The work is covered for a year after we finish. If anything is not right, ring us and we’ll sort it. Clean with warm soapy water and a soft cloth. Do not use solvents or scourers.
- Location
- Old St Mellons (CF3, CF23)
- County
- Cardiff
- Cover
- A year, on every repair
- Price
- From £95. Free, fixed price from pictures
- Phone
- 0345 017 0787
- Updated
- 23 October 2026
The process
On the day itself, there is little for you to do. Show us the job, point us to the room, and we will take it from there. The job generally runs to a morning or an afternoon.
- We clean the frame or panel.
- We fill scratches, chips and holes.
- We smooth the repair.
- The finish is colour-matched, woodgrain included.
- Finally we blend it into the rest of the frame.
Before we arrive
- Clear the area around the damage
- Tell us about any previous repairs or coatings
- Keep pets and children out of the room while we work
Ask for a price
If you are in Old St Mellons and want a price, photos are the quickest way: one close up, one from further back, plus your postcode. We reply with a fixed quote and our next available dates.
Advice
For landlords and businesses
We are used to working with agents and managing companies. Just send pictures, the address and how to get access.
Housing associations and facilities teams use us for planned and reactive repairs. Repairing in place avoids the disruption of a replacement, which is easier on the people living there.
DIY repairs versus a professional job
A kit can be fine for a tiny mark out of sight. For damage in plain view, cracks, holes or rust, or coloured finishes, a professional repair is worth it.
If you’ve already tried a DIY fix, that is fine. We take the old repair out and do it properly, so it will not stop us repairing it. Just mention it when you send pictures, as it can add time.
FAQs for Old St Mellons
Do you cover the whole of Cardiff?
Across the UK. Prices do not change with location.
Will there be a smell?
There may be a mild smell during the work that clears as it cures.
What happens if you find more damage?
We will show you and explain before doing anything extra. Nothing extra is done without your say-so.
Can pets and children be at home?
Keep pets and children away from the work area on the day.
What happens after I send photos?
We check the damage, the material and your postcode, then reply with a quote.
Is repairing better than replacing?
Normally, when the rest is in good condition. A repair avoids removal and making good. If replacing would be better, we will say so.
Can you redo someone else’s repair?
Most of the time. Let us know what was used before.
Do you work in Old St Mellons?
Yes. We cover the entire UK and travel to Old St Mellons. Send photos and we’ll quote, or call 0345 017 0787.
Where we work around Old St Mellons
Old St Mellons is about 4 miles north-east of Cardiff, in Cardiff. We agree a date that works for you, and we will give you an arrival time in advance, so there is no waiting around. Our repair technicians cover all 91 towns and villages in Cardiff.
Jobs in CF3 and CF23 are booked in the same way as anywhere else. We regularly work on streets such as Mill Lane, Began Road and Church Road and the roads around them. We also travel to Llanedeyrn Village (1 mile west), St Mellons (1 mile south-east), Began (1 mile north), Llanrumney (1 mile south-west) and Pentwyn (1 mile south-west). We also work in nearby towns such as Cardiff (4 miles south-west), Ely (7 miles south-west), Castle (4 miles south-west), Adamsdown (4 miles south-west), Roath (4 miles south-west) and Splott (4 miles south-west).
Local landmarks in Old St Mellons
In Old St Mellons, that means homes near Bishop Childs C.I.W. Primary School, St Mellon's Church and Rumney High School. Other local landmarks include St Edeyrn's Church (0.5 miles west) and The Unicorn pub (0.5 miles west). The closest station to Old St Mellons is Llanishen station, about 2.9 miles west. A little further out are University Dental Hospital on Cardiff University (3.9 miles south-west) and Regimental Museum of 1st The Queens Dragoon Guards (3.9 miles south-west). Green spaces nearby include Roath Park Lake and The Mount.
Nearby places to Old St Mellons
What else we do in Old St Mellons
What affects the price in Old St Mellons
Prices start from £95. Quotes are free and the price is fixed. What we look at:
- What kind of damage it is
- The material
- How many items we do on one visit
- Where the damage is and how we get to it
It helps to know what pushes a price up or down: the amount of damage, the material, access to the area, and how many jobs we do in one trip. Send pictures and you will get a fixed figure.
Getting a price from pictures
Almost every job we do is priced from pictures. This is what we need:
- A close-up of the damage, in focus
- Where you are, by postcode
- One picture of the whole window, door or sill
- Any earlier repairs or coatings
A quote takes minutes to ask for: 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.
Do you need uPVC repair in Old St Mellons?
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.
Send us a photo if you notice any of these:
- Scratches from ladders and furniture
- Holes from removed fittings and alarms
- Burns on sills
- Chips and dents
Questions to ask before you book
- Whether they match the colour on site
- How to care for the finish
- How your room will be protected
- Who will actually do the work
Repair or replace in Old St Mellons?
Replacing the frame 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. No two jobs are quite the same, so we price each one individually. The size and type of damage, the material and access all make a difference, and combining jobs on one visit brings the cost down.
Why choose Surface Doctor in Old St Mellons
- Most jobs done in one visit
- Repair technicians who travel to you, UK-wide
- Accredited with CHAS, Constructionline and SafeContractor
- Everything repaired in place
See our prices page.
About our accreditations · Every repair comes with a one-year guarantee.
