French Casement Windows in Islington, London
French Casement Windows designed, surveyed and installed across Islington (N1, N5, N7). From Barnsbury to Canonbury, we bring the same measured, made-to-fit approach to every London installation — engineered around sash-heavy period stock, communal-window agreements and RBKC / Camden conservation planning.
French Casement Windows designed around sash-heavy period stock, communal-window agreements and RBKC / Camden conservation planning.
Islington's Georgian terraces around Barnsbury, Canonbury and Highbury Fields need windows that read as painted timber. We install throughout N1, N5 and N7 with a senior surveyor covering the borough weekly.
SpecificationSix-chamber uPVC or thermally-broken aluminium profile · shoot-bolted centre meeting stile · argon-filled A+ glazing · Yale multi-point locking
Why Islington homeowners choose South East Windows & Doors.
Islington surveys, London experience
A senior surveyor visits every Islington project in person — no call-centre, no sub-contracted quoting. We understand sash-heavy period stock, communal-window agreements and RBKC / Camden conservation planning because we install across London every week.
Made-to-measure french casement windows
Every french casement windows we install in Islington is manufactured to the survey — not selected from a stock list. That's why the finish, sightlines and thresholds match the property.
Postcode-covered: N1, N5, N7
Weekly installs across N1, N5, N7 and the surrounding London 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 Islington.
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 Islington homeowners tell us.
"A 6.4m aluminium bifold set across the rear of our garden flat. Slim sightlines, perfect thresholds, and the team left the house cleaner than they found it."
"Sprayed a bespoke Farrow & Ball green on our composite front door. The finish is glass-smooth and the security spec exceeds our insurer's PAS 24 requirements."
"They liaised directly with our managing agent and the freeholder — a huge relief. The block now has matched sightlines and a proper 10-year guarantee."
Common questions from Islington homeowners.
- Do you install french casement windows in Islington?
- Yes — South East Windows & Doors installs french casement windows across Islington (N1, N5, N7) and the wider London area every week. Every project is surveyed, manufactured and installed by our own teams.
- How long does french casement windows installation take in Islington?
- Most Islington 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 Islington?
- Working across London means understanding period detail, party-wall etiquette and permit parking as well as we understand glass. We schedule dust sheets, protection and clean-down like a good building firm should. We prepare planning-ready drawings with matched sightlines, glazing-bar depths and hardware for Islington projects that require them.
- What guarantee covers french casement windows in Islington?
- Every french casement windows installation in Islington 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 Islington?
- Yes — we can share recent french casement windows case studies from across London, including projects in Barnsbury, Canonbury and neighbouring towns. Ask your surveyor at the on-site visit.
- What thermal performance does french casement windows achieve in Islington?
- Energy-efficient french casement windows installed across Islington, London 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 Islington.
Same french casement windows, same team — installed across neighbouring towns in London and beyond.
Related windows for Islington homes.
Book your Islington survey.
Tell us about your Islington 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.