About Sash Restoration London

Family‑run sash window specialists serving London & Hertfordshire

For over 35 years, Sash Restoration London has repaired, restored and handcrafted traditional timber sash windows for period homes across London and Hertfordshire. Our team of specialist joiners and fitters combine time‑honoured craftsmanship with sensitive, conservation‑friendly techniques so you can enjoy warmer, quieter rooms without losing the character that makes your home special.

What we do:

Sash window restoration & repair – overhaul, cord and weight balancing, timber splices and sill replacements
Draught‑proofing – discreet seals to stop rattles, reduce noise and heat loss (with a 5‑year guarantee on our draught‑proofing service)
Slimline double glazing – heritage‑appropriate units fitted to existing sashes where approved
Bespoke replacement sashes & complete windows – like‑for‑like profiles to match your originals
Sash window painting – thorough preparation and durable hand‑painted finishes
Victorian shutters & panel work – restore originals or commission faithful replicas

Looking for details? See: Draught Proofing, Slimline Double Glazing, Replacement Timber Sashes, Sash Window Painting, Shutters & Panel Work.

Why homeowners choose us:

Period‑correct results – we preserve original joinery wherever possible and match mouldings precisely where replacement is required
Conservation expertise – experienced working in Article 4 streets and listed buildings, liaising with local conservation officers
In‑house workshop – complex repairs and bespoke joinery are made in our Harringay N4 workshop for quality control
Clean, careful working – dust‑control, surface protection and tidy handover as standard
Clear, honest pricing – itemised surveys and written quotations with no surprises
Local, responsive team – a dedicated point of contact from first survey to aftercare

Our process:

Free survey & advice – we inspect your windows, discuss options and answer questions
Itemised quotation – transparent scope covering repairs, glazing, finishes and access
Craft & manufacture – repairs and any new components are made in‑house to match your profiles
Installation – carried out from the inside in most cases, minimising external access needs
Finishing & sign‑off – smooth operation, neat finish and clear maintenance guidance
Aftercare – we’re on hand for adjustments and future upkeep

Conservation & heritage approach:

We take a repair‑first stance and only replace where timber is beyond economical repair. Where double glazing is requested, we assess frames for suitability and, if appropriate and approved, install slimline units that retain traditional sightlines. For listed buildings, we support you with drawings, specifications and photos to aid applications.

Where we work:

We serve homeowners, landlords and professional teams throughout Inner & North London (Islington, Hackney, Camden, Haringey, Westminster, Kensington & Chelsea, and surrounding areas) and Hertfordshire (including St Albans and nearby towns).

Workshops & offices:

London Head Office:

Ripplevale Grove, Islington, London N1 1HT

Tel: 0207 609 3012

Email: info@sashrestorationlondon.com

Hertfordshire Head Office:

Blacksmiths Lane, St Albans AL3 4SQ

Tel: 0207 164 6305

Workshop:

94 Vale Road, Harringay Warehouse District, London N4 1PZ

Mob: 07913 372 092 | 07399 779 872

Please use the contact form or call to book a free survey.

Meet the team:

We’re a close‑knit group of specialist sash window joiners, glaziers and painters. Many of our craftspeople trained in traditional methods and have decades on Victorian and Edwardian housing stock. Every project has a named supervisor to keep communication clear and the work on schedule.

Sustainability:

Extending the life of original windows is inherently sustainable. Our repair‑first approach retains historic timber, reduces waste and helps improve energy performance through draught‑proofing, brush seals and appropriate glazing upgrades.

Frequently asked questions:

Do you work on listed buildings and in conservation areas?

Yes. We regularly work in Article 4 streets and on listed properties. We advise on what’s typically accepted and can provide drawings, specs and photographs to support approvals.

What areas do you cover?

All London postcodes with a focus on North and Central London, plus Hertfordshire including St Albans. If you’re nearby, ask and we’ll confirm.

Do you guarantee your work?

Yes. Our draught‑proofing service carries a 5‑year guarantee. Other works are covered by our workmanship guarantees – details are set out in your quotation.

Will there be much mess?

We protect floors and surfaces, work mainly from the inside, and tidy thoroughly before we leave.

Call to action:

Ready to restore your sash windows? Book a free survey today.
Tel: 0207 609 3012
Email: info@sashrestorationlondon.com
Or use our Contact Us form.