A family trade.
Practised for a lifetime.
For over 20 years, South East Windows & Doors has designed, made and installed windows, doors, conservatories and garden rooms across London and the Home Counties — with our own hands, on our own vans, and never through a subcontractor.
Built in a workshop.
Not in a call centre.
South East Windows & Doors was founded in 1950 on a stubborn idea: that a window fitter should measure the aperture, specify the job, and come back to install it. That the person who shakes your hand on day one should still be there on the day the last piece of trim is silicone-sealed.
We started small — two vans, a lock-up, and a slowly-growing book of clients who'd been let down by national chains. Two decades on, we've never taken outside investment, never subcontracted an installation, and never advertised on daytime television. Referrals still make up more than half our work.
We remain family-run because we like it that way. It means we can turn down jobs that don't suit us. It means we can focus on fit and finish instead of chasing volume. And it means every apprentice we train is trained by someone who's been in the trade for a lifetime.
Six principles. Not negotiable.
Craft over volume
We take on fewer jobs than we could — because every installation is fitted by the same hands that measured it.
One team, start to finish
The surveyor who specifies your job is on site the day it's installed. No hand-offs. No lost detail.
Made in Britain
Every profile, frame and pane is manufactured in UK factories we've worked with for over a decade.
Clear specification
A detailed written quotation, measured to the millimetre, with the agreed scope clearly documented.
Quiet on site
Dust sheeted daily, tools packed by 5pm, driveway swept before we leave. Your home stays a home.
Aftercare as standard
A named point of contact for life of the guarantee. Reachable within 48 hours, always.
British-made, to the millimetre.
Every frame we install is manufactured in UK factories we've partnered with for over a decade. We specify Grade-A toughened glass, PAS 24 hardware, and marine-grade stainless fixings as standard — never as an upgrade.
UK-manufactured
Every profile extruded, welded and glazed in Britain. Short supply chain, real accountability.
Grade-A glass
Low-E, argon-filled, warm-edge spacer. Better than the minimum U-value — every unit, every time.
PAS 24 hardware
Enhanced security locking on every door and every ground-floor window. Insurer approved.
One team. On your job.
Every role from first phone call to ten-year aftercare visit is filled by someone on our payroll. No brokers. No lead-generators. No white-labelling.
Founder & Director
Sets the standard on every job. Personally reviews every major quotation and signs off every completion.
Senior Surveyors
20+ years each. Measure, spec and detail every aperture — from Georgian sashes to structural bifold openings.
Lead Installers
In-house, on payroll, on our vans. Master glaziers, joiners and fitters who've been with us for a decade or more.
Aftercare Manager
Coordinates warranty visits, seasonal adjustments and any question you have from year one to year ten.
Independently audited. Independently guaranteed.
We don't ask you to take our word for it. Every credential below is verifiable, third-party, and covers the work we deliver in your home.
Insurance-Backed Guarantee
Your 10-year guarantee is underwritten independently, so it holds whatever happens to us.
CERTASS Approved
Independently audited installations, notified to your Local Authority automatically.
PAS 24 Security
Every door and ground-floor window tested to the enhanced security standard required by Approved Document Q.
Building Regs Part L
Thermal performance certified to current U-value requirements — better than minimum, as standard.
10-Year Insurance Guarantee
Underwritten independently. Protected even in the unlikely event we're no longer trading.
Deposit Protection
Every deposit safeguarded through our industry deposit-protection scheme. No exposure to you.
Six ways we work that others won't.
In-house installers
Never subcontracted. Every hand on your job is ours, employed, trained and insured.
Detailed written quotation
Specified to the millimetre after survey, with every agreed detail clearly documented.
Senior surveyor on site
The person who specified the job is the person who supervises the install. Detail doesn't get lost in translation.
Dust-sheeted, daily
Floors covered, tools packed, driveway swept. Every evening. Non-negotiable.
Single point of contact
One name, one number, from first sketch to final walk-round. And through the guarantee.
48-hour aftercare
Any question — a seal, an adjustment, a hinge — answered within two working days for a decade.
We've had four sets of installers over the years — none came close. Windows are flawless, three years on.
Six counties. One standard.
Bring the outside in.
Request your free survey.
Speak with our design team, book a home survey, and receive a fixed written quotation — all with no obligation.
Call · 020 3633 0405