Sash Window Restoration Harrow

Q: What warranty do you provide?

We provide a 10-year warranty, provided the windows are repainted externally every five years.

Sash Window Restoration & Replacement in Harrow

Harrow is one of London’s most characterful boroughs, with 30 conservation areas and a wealth of Victorian, Edwardian, and Georgian homes. From the period villas of Harrow-on-the-Hill to Edwardian terraces in Pinner, timber sash windows define the area’s heritage.

At Barnsbury Joinery, we specialise in restoring, repairing, and replacing sash windows across Harrow. Our goal is simple: protect your home’s historic character while improving energy efficiency, comfort, and security.

Why Harrow Homeowners Choose Barnsbury Joinery:

🏛 Heritage expertise – fully conservation-aware and listed-building compliant
🪵 Traditional craftsmanship – repairs using timber splicing, sill renewal, cords & weights, reglazing
🌬 Modern performance – discreet draught-proofing and slimline double glazing where permitted
✅ 10-year warranty – covering joinery and workmanship, provided windows are repainted externally every five years
📍 Local coverage – trusted by homeowners across Harrow, Pinner, Stanmore, and Northwood

Our Timber Window Services in Harrow

Sash Window Restoration

Decay repairs and splicing
Sill and meeting-rail renewal
Cord & weight replacement
Reglazing and putty repairs
Draught-proofing and weather seals

Like-for-Like Timber Replacement

Bespoke timber sashes, replicating original profiles
Conservation-compliant joinery for listed buildings
Slimline heritage double glazing options

Serving Harrow’s Conservation Areas

We are familiar with Harrow Council’s requirements for homes in Harrow-on-the-Hill, Pinner Village, Roxeth Green, and Stanmore, ensuring our work protects your property’s character.

Recent Harrow Projects

While we don’t yet have photos from Harrow-specific projects, our team has delivered sash window restorations across London in:

Victorian terraces similar to those in Harrow-on-the-Hill
Edwardian bays like those in Pinner
Conservation area homes requiring heritage-compliant glazing upgrades

FAQs

Do you work on listed buildings in Harrow?
Yes. We regularly restore and replicate sash windows for Grade II listed properties, always in line with Harrow Council’s conservation requirements.

Can you install double glazing in conservation areas?
Where permitted, we fit slimline heritage double glazing that preserves the original look.

Do you replace entire windows or just repair?
Both. We always prioritise repair but offer bespoke, like-for-like replacements if repair isn’t possible.

What warranty do you provide?
We offer a 10-year warranty, provided the windows are repainted externally every five years.

How much does restoration cost?
Pricing depends on condition and scope. We provide a free on-site survey and fixed quotation.