At Hampstead Sash Window Repairs & Emergency Glazing, we specialise in the repair, restoration and emergency replacement of traditional timber sash windows. We’re based in NW3 and proudly serve Hampstead, Highgate, Belsize Park and surrounding areas. Our team specialises in preserving the character of London’s period homes while enhancing insulation, security and everyday comfort. From discreet draught-proofing to urgent glass replacements, we provide precise, respectful service for properties, flats and listed buildings alike.
We earn our clients’ trust through dedication to quality, honest service and proven results. Here’s how we stand apart:
Our team brings in-depth knowledge of period architecture and traditional carpentry, allowing us to restore original timber sash windows with precision. Whether it's repairing rotten frames, re-cording sashes or retrofitting slimline double glazing, we use a balance of historic techniques and modern engineering. Clients trust us because we don’t just repair windows, we preserve heritage while improving comfort and performance.
We’ve worked across NW3 for more than two decades, restoring homes from Hampstead to Highgate. Our experience includes everything from minor draught issues to full heritage-grade sash window rebuilds. Each project has sharpened our attention to detail and reinforced our understanding of London’s conservation expectations. This depth of experience allows us to tackle even the most complex restorations with confidence, efficiency and care.
We operate under full public liability insurance and comply with all relevant UK building regulations. As FENSA-registered installers and TrustMark-accredited contractors, we meet quality and safety standards. These accreditations give our clients peace of mind, knowing that their sash window or glazing project will be completed to the highest standard, with correct documentation provided where applicable, especially important for landlords and property managers.
Our reputation is built on word-of-mouth referrals, loyal repeat clients and long-standing trust within the local community. From estate agents to architects, residents to facilities managers, many of our customers come to us based on trusted recommendations. With consistent five-star Google reviews and praise for our respectful on-site conduct and tidy workmanship, we’ve become a go-to choice for sash window repair and emergency glazing across Hampstead and neighbouring NW London communities.
We offer specialist sash window repairs, timber restoration and emergency glazing services across Hampstead and nearby areas. Whether it’s fixing stuck sashes, replacing broken glass or upgrading period windows with discreet double glazing, our team delivers trusted craftsmanship with full respect for your home’s original features.
We fix jammed, rattling or broken sash windows using time-tested methods. From rebalancing cords to adjusting sashes, we ensure smooth and silent operation.
We restore original timber frames by removing rot, splicing in new hardwood and repainting to match heritage finishes, preserving beauty while adding years of life.
Discreet brush-seal systems eliminate cold draughts, dust and outside noise. Ideal for improving comfort without altering the appearance of original sashes.
Broken glass or unsafe panes? We offer fast-response glazing repairs, including boarding up and next-day replacement across NW3 and surrounding postcodes.
We replace cracked, misted or shattered panes with single or double-glazed glass to match your frame type and energy efficiency needs.
Retain your period charm while improving insulation. We fit slimline double-glazed units into existing sash frames without compromising aesthetics.
When repair isn't viable, we offer made-to-match timber windows approved for listed buildings and conservation areas.
We repair or recreate damaged timber sections to match the original profile, using durable, rot-resistant wood that blends the old with the new.
A full tune-up for your sash windows: we inspect, clean, lubricate and reseal for years of smooth, efficient use.
Based in Hampstead NW3, we serve a wide range of surrounding areas known for their period homes and rich architectural character. Homeowners, landlords and architects trust our services for precise restorations and prompt glazing support.
From a Victorian flat in Belsize Park to a listed property in Highgate or a modern home in Swiss Cottage, our team provides reliable service that respects conservation needs.
We currently operate across:
If you're unsure whether we cover your area, give us a call. We often extend services across NW and North London on request
We’re a small, hands-on team of sash window specialists, joiners and glazing engineers. Based locally in NW3, we bring decades of combined experience to every project. Our founder personally oversees each job to ensure the highest quality with no shortcuts and no subcontracting.
What matters to us is restoring period windows with care, preserving character and offering a service you can truly rely on.
Restore, Don’t Replace
We save original features wherever possible; it’s better for heritage and more cost-effective for clients.
Work With Pride
We treat each project as if it were our own home. Precision and craftsmanship are at the core of everything we do.
Respect Your Space
We arrive on time, work with care and precision and keep you informed every step of the way from the initial contact to the finishing touches.
"I started this company to bring honest, heritage-respecting window care to the homes I’ve grown up around. Every sash we repair is a part of someone’s history and we treat it that way."
— Founder, Hampstead Sash Window Repairs
Client: Rachel Thompson
Property Type: 1906 Edwardian townhouse
Location: Chalcot Gardens, Primrose Hill
The Challenge
Rachel contacted us after noticing condensation and a draught in her front living room bay window. One pane had cracked from an old impact and the sashes were no longer sliding. The original timber frames were intact but needed careful repair without damaging the home’s architectural integrity.
Our Step-by-Step Solution
Step 1: Assessed the frames and discovered minor rot and sash cord failure.
Step 2: Carefully remove the lower sash and strip back paint layers.
Step 3: Spliced in new timber sections to replace the rot using Accoya wood.
Step 4: Re-glazed with slimline double-glazed units and installed brush seals.
Step 5: Re-recorded, balanced and reinstalled sashes for smooth operation.
Step 6: Applied heritage colour match paint, ensuring a conservation-friendly finish.
The Result
Rachel’s window is now energy-efficient, operates smoothly and retains its original Edwardian style. She noticed a 30% drop in heat loss in that room as a result of the repair..
“I was dreading the idea of full replacements but Hampstead Sash Repairs worked magic. They respected my home’s heritage and delivered on time, with no fuss. Every detail was considered. The difference is amazing, my living room feels warmer and the windows are working perfectly. Genuinely professional and caring team.”
— Rachel Thompson, NW1
“Our investment property in St John’s Wood had multiple windows painted shut and fogged glazing. These guys sorted it all out without disturbing the tenants. Clean, quiet and extremely precise with details.”
“I was concerned about keeping the character of our sash windows during a reno in Gospel Oak. The draught-proofing and reweighting service made a real difference. Professional advice, competitive quote, no surprises.”
“After a storm cracked our front bay glass in Swiss Cottage, they arrived the same evening. Temporary board-up, then a perfect double-glazed replacement the next morning. That’s what I call proper emergency response.”
Our certified team is ready to restore, repair or replace your sash windows with expert care. We serve all of NW3 and nearby areas. Whether it’s a minor draught or a major emergency, we offer reliable service, tailored quotes and same-day appointments for urgent glazing needs.
We recommend ‘Hampstead Glass & Glazing’ at 45 Hampstead High St, NW3.
Yes! We secure properties with professional boarding-up solutions
Yes! We work with insurers to assist with claims.