Sash window repair Primrose Hill NW1
Hartwell Sash Β· Primrose Hill Β· NW1

Sash Window
Repair in
Primrose Hill

NW1 Β· NW3 Β· NW8

Period property specialists serving Primrose Hill, Chalk Farm, Belsize Park and Camden β€” repair, restoration and glazing upgrades done properly.

Scroll down to see what we do
5.0 Google Rating β˜…β˜…β˜…β˜…β˜…
Up to 5yr Workmanship Guarantee
1 day Most Repairs Same Visit
Free Survey & No Obligation
About Primrose Hill

Victorian villas, stucco terraces β€”
windows worth preserving

Primrose Hill and the surrounding NW1 postcode is one of London's most sought-after residential areas. Wide streets of Victorian and Edwardian villas sit alongside elegant stucco terraces, many with tall original sash windows that define the character of the neighbourhood.

Around Fitzroy Road, Chalcot Square, Elsworthy Road and the streets running down towards Chalk Farm, original sash windows are a consistent feature β€” often in good structural condition but in need of careful restoration.

Much of Primrose Hill sits within Conservation Areas. The original sash windows found on Victorian and Edwardian properties here are considered integral to the architectural character of the area β€” and are worth maintaining rather than replacing.

What we do β€”
done properly

Every service carried out with care and precision

01

Draught Proofing

Cold draughts and outside noise reduced significantly β€” without changing the appearance of your windows. We replace staff bead and parting bead with precision brush pile seals and fit a brush seal at the meeting rail.

Inspection Sashes removed Brush pile beads fitted Meeting rail sealed Re-hung & tested
Draught proofing and careful like-for-like repairs are often possible without changing the appearance of the window. For listed buildings, flats or properties with specific restrictions, we recommend checking consent requirements before work begins.
02

Sash Cord Replacement

Windows that slam shut or won't stay open β€” fixed properly. We replace both sash cords on both sides and rebalance both sashes as standard. One visit, done properly.

Staff beads removed Both sashes out Pulleys oiled Re-hung & balanced
We replace both cords on both sides as standard β€” not just the broken one. Both wear at the same rate.
03

Glass Replacement

Cracked, broken or misted panes replaced carefully β€” preserving the original timber frame. Heritage glass available for Conservation Areas throughout Primrose Hill.

Free survey Glass sourced to spec Carefully removed New glass fitted Putty finished
04

Timber Repair & Repainting

Rotting timber repaired, not replaced wherever possible. Tall Victorian sash windows in Primrose Hill often suffer from years of paint build-up, seized hardware and failing cords β€” the result of deferred maintenance rather than structural failure. We work carefully to restore rather than replace.

Full inspection Damaged timber cut back Epoxy rebuild Primed & finished Ironmongery replaced
05

Slimline Double Glazing Upgrade

Upgrade single glazing to slimline double glaze units β€” fitted within the existing frame, preserving the original look entirely. Better insulation, less noise, no change to the character of your property.

Frame assessed Rebate cut Slimline units fitted Rebalanced Finished & painted
12mm slimline units with argon gas filling β€” designed to retain slim heritage-style sightlines, with significantly better thermal performance. Often considered for period properties and conservation areas where the original appearance must be retained. Suitability depends on the property and local restrictions.
06

Full Sash Replacement

When a window is genuinely beyond saving β€” we supply and fit heritage timber sash windows made to match the original design of your property. Not uPVC. Timber, made properly.

Free assessment Timber sashes to measure Box frame checked Fitted & balanced Glazed & painted
We always try to repair before we replace. Replacement is only recommended when genuinely necessary.
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"Nick replaced broken sash cords quickly and efficiently. Very tidy work β€” wouldn't hesitate to book again."

Janet Bohrer Β· Google Review
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"Outstanding craftsmanship. You can tell this is done by someone who really cares about the work."

Konstantin Prichodka Β· Google Review
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"Clear communication and fast work β€” exactly what you want. Arrived on time, left everything spotless."

AndrΓ© Gomes Β· Google Review
Conservation Areas & Listed Buildings

Working in
Primrose Hill's
protected streets

Much of Primrose Hill sits within Conservation Areas administered by the London Borough of Camden. The Victorian and Edwardian properties throughout NW1 and NW3 are among North London's most desirable β€” and their original sash windows are a key part of what makes them distinctive.

In many cases, draught proofing, cord replacement and careful like-for-like repairs can be carried out without changing the appearance of the window. For listed buildings, flats, replacement work or properties under specific restrictions, we always recommend checking the correct consent requirements before work begins.

✦ Grade II Listed Fitzroy Road Chalcot Square Elsworthy Road Chalk Farm Belsize Park Camden St John's Wood Regent's Park

Free survey
in Primrose Hill

We visit your property, assess every window and give you an honest quote β€” no call-out fee, no obligation, no pressure. We aim to respond the same day.