French Casement Windows in Winslow, Buckinghamshire
We install french casement windows across Winslow (MK18) week in, week out — matched sightlines, planning-ready detailing and finish standards suited to Buckinghamshire homes from Great Horwood through Swanbourne.
French Casement Windows designed around Chilterns AONB properties, painted flush profiles and conservation-friendly detailing.
Winslow's Georgian High Street and Market Square, plus the surrounding Aylesbury Vale villages across MK18, combine market-town character with expanding new-build. We install throughout with planning-ready drawings.
SpecificationSix-chamber uPVC or thermally-broken aluminium profile · shoot-bolted centre meeting stile · argon-filled A+ glazing · Yale multi-point locking
Why Winslow homeowners choose South East Windows & Doors.
Winslow surveys, Buckinghamshire experience
A senior surveyor visits every Winslow project in person — no call-centre, no sub-contracted quoting. We understand Chilterns AONB properties, painted flush profiles and conservation-friendly detailing because we install across Buckinghamshire every week.
Made-to-measure french casement windows
Every french casement windows we install in Winslow is manufactured to the survey — not selected from a stock list. That's why the finish, sightlines and thresholds match the property.
Postcode-covered: MK18
Weekly installs across MK18 and the surrounding Buckinghamshire area, with parking, protection and clean-down handled by our own crews. Insurance-backed 10-year guarantee on every french casement windows project.
What sets our french casement windows apart in Winslow.
No Central Mullion
Both sashes meet on a shoot-bolted centre stile that opens with them — the aperture is completely clear when both are open, unlike a standard 2-light casement.
Widest Clear Opening
Up to 1.6m of clear width on a standard aperture — the widest opening on any hinged window we supply, and a compliant Doc B fire escape on habitable first-floor rooms.
Kitchen & Dining Room Favourite
The natural choice above a sink or over a garden view — throw both sides open and the view is uninterrupted.
Available in All Three Ranges
In uPVC, thermally-broken aluminium or heritage flush-casement — same principle, three material finishes to suit the property.
PAS 24 Secured Locking
Multi-point espagnolette locking on both sashes with shoot-bolts top and bottom — as secure as any single-sash casement, tested to PAS 24:2016.
Astragal & Georgian Bar Options
Full bar and glazing options — a French casement can carry the same period detailing as a fixed light of the same size.
What Winslow homeowners tell us.
"The orangery has become the heart of the house. Warm in January, cool in July. Every trade on site was courteous and clean."
"We spoke with three installers. They were by a mile the most professional. The composite front door still looks showroom two winters on."
"Heritage flush casements across the whole cottage. From the road you'd swear they were painted timber — but with modern thermal performance."
Common questions from Winslow homeowners.
- Do you install french casement windows in Winslow?
- Yes — South East Windows & Doors installs french casement windows across Winslow (MK18) and the wider Buckinghamshire area every week. Every project is surveyed, manufactured and installed by our own teams.
- How long does french casement windows installation take in Winslow?
- Most Winslow projects run to a two-to-eight week lead time from signed quote to install, depending on manufacture. Once on site, a typical french casement windows install completes in one to five working days with full dust-sheet protection and clean-down.
- Do you handle conservation-area planning in Winslow?
- Many of our Buckinghamshire projects sit within the Chilterns AONB or conservation areas. Our heritage flush casements and timber-effect finishes are frequently accepted where UPVC once wasn't. We prepare planning-ready drawings with matched sightlines, glazing-bar depths and hardware for Winslow projects that require them.
- What guarantee covers french casement windows in Winslow?
- Every french casement windows installation in Winslow is covered by our insurance-backed 10-year guarantee — parts, labour and finish. Aftercare is direct with the installing team, not a call centre.
- Can I see recent french casement windows work near Winslow?
- Yes — we can share recent french casement windows case studies from across Buckinghamshire, including projects in Great Horwood, Swanbourne and neighbouring towns. Ask your surveyor at the on-site visit.
- What thermal performance does french casement windows achieve in Winslow?
- Energy-efficient french casement windows installed across Winslow, Buckinghamshire achieve whole-window U-values of 0.9–1.4 W/m²K, with the exact frame and glazing specification confirmed after survey.
- How is a French casement different from a normal 2-light casement?
- A normal 2-light casement has a fixed mullion between the two sashes — you always see the vertical bar. A French casement has no mullion; the two sashes meet on a movable centre stile that opens with them, so when both are open the aperture is completely clear.
- Are they secure without a central mullion?
- Yes — the meeting stile has shoot-bolts at the top and bottom that engage into the outer frame, and the active sash has multi-point espag locking. The whole assembly is tested to PAS 24 and provides the same security as a standard casement.
- Can I have Georgian bars on a French casement?
- Yes — astragal and Georgian bars in 18mm or 25mm, applied or through-frame, are available on both sashes and any fixed lights above. Popular on flush-casement French windows in period properties.
Also serving french casement windows near Winslow.
Same french casement windows, same team — installed across neighbouring towns in Buckinghamshire and beyond.
Related windows for Winslow homes.
Book your Winslow survey.
Tell us about your Winslow project. A senior surveyor will call within one working day to arrange a free on-site visit and fixed quote for your french casement windows.