Cardiff flush sash windows — survey, supply & install
Three things shape every flush sash windows install in Cardiff: the age of the brick, the prevailing weather off the A48 ring, and what your neighbours have already done. Our spec uses 70mm flush-fit uPVC profile and cream, chartwell green, painswick, anthracite, black or white, with single window in under 2 hours, full house 2–3 days on site. Crews work out of vans serving CF10/CF11/CF14/CF23/CF24/CF5 weekly.
10/10 on Checkatrade across Cardiff and Penarth
Over 50 verified reviews from South Glamorgan homeowners. 10-year product, 10-year foil colour, 2-year fitting.
Cardiff at a glance
- Council
- Cardiff
- Postcodes
- CF10, CF11, CF14, CF23, CF24, CF5
- Main route
- A48
- Nearest town
- Penarth (4 mi)
Capital city — everything from Edwardian conservation-area bays to glass-fronted Bay apartments.
Recent work near Cardiff
CF83 · May 2026New front door fittedRosac fitted our new composite door — beautiful finish, friendly lads and tidy from start to finish. House already feels warmer. Highly recommended.
CF37 · April 2026Full house of windowsHad every window in the house replaced. The team were punctual, polite and the quality is brilliant. Genuinely couldn't be happier.
CF63 · March 2026Back door & patio doorsReplaced our back door and patio doors. Great communication, fair price and excellent workmanship. Will be using them again for the windows.
How we build flush sash windows
Old timber or uPVC frames removed with care to protect the reveal, flush frames sat proud of the brick line to sit level with render or cladding, drainage slots angled below the cill.
- • 70mm flush-fit uPVC profile
- • concealed friction hinges
- • 28mm A+ rated argon-filled unit
- • mechanical joints for a crisp square corner
Guarantee: 10-year product, 10-year foil colour, 2-year fitting.
Why Cardiff homeowners choose us
FAQs — flush sash windows in Cardiff
What guarantee do I get when you fit flush sash windows in Cardiff?+
10-year product, 10-year foil colour, 2-year fitting. We're insured to work right across Cardiff Council's area, and you have one named contact from quote to snag.
Do you do commercial flush sash windows for sites near Cardiff Bay, Capital Business Park?+
Yes. We've worked across Cardiff Bay, Capital Business Park and the Llanishen industrial belt, supplying the same 70mm flush-fit uPVC profile build we use on residential. Commercial quotes include site access notes and out-of-hours options.
Do you cover Penarth and Caerphilly as well?+
Yes — Penarth is roughly 4 miles from Cardiff, Caerphilly about 7. Same team, same prices, same guarantee.
What colours and finishes are available for flush sash windows?+
cream, chartwell green, painswick, anthracite, black or white; period-look Georgian bar, monkey-tail handles and butt hinges; matching flush-fit doors available. We bring physical samples to the quote so you can see them against your Edwardian and Victorian bay-fronted houses in Cathays and Roath in real light.
How long does a flush sash windows install take in a Cardiff property?+
Single window in under 2 hours, full house 2–3 days. Most of the Edwardian and Victorian bay-fronted houses in Cathays and Roath we see in Cardiff fit our standard schedule with no surprises.
Summary — flush sash windows in Cardiff
From Cyncoed to Roath, our patch is small enough that we'll see your finished install ten times a year. That keeps us honest. Get in touch when you're ready.
Let's make your house feel more like home.
Fill in a few details and we'll come back within 24 hours with a clear quote — no callout fee, no pressure.