Sash Windows in Hampstead

Hampstead's Timber Window Specialists

Hampstead represents the pinnacle of London's period architecture. From the grand Georgian mansions overlooking the Heath to the elegant Victorian villas along Flask Walk, these prestigious properties demand windows of the highest quality. At Prime Sash Windows, we manufacture bespoke timber sash windows that honour Hampstead's heritage while delivering modern thermal and acoustic performance.

Much of Hampstead falls within strictly protected Conservation Areas, with many properties holding Listed Building status. Our craftsmen have extensive experience navigating the stringent planning requirements of Hampstead, Camden Council, and Historic England, ensuring your windows are both authentically designed and fully compliant.

Why Hampstead Homeowners Choose Us

Every window is manufactured in our workshop near London from engineered Accoya or premium hardwood. Accoya is guaranteed for 50 years against rot and fungal decay — far outlasting uPVC, which typically degrades within 20 to 25 years.

• Slimline double glazing — 4/16/4 sealed units with warm-edge spacer bars. U-value 1.4 W/m²K. Part L compliant.
• PAS24 security — multi-point espagnolette locking on all opening sashes.
• Traditional lead weights — we never use spring balances. Smoother operation, longer lifespan.
• Any colour — over 2,000 RAL colours and the full Farrow & Ball range. Dual colour available.
• FENSA registered — Building Regulations self-certification and certificate on completion.

Every window is spray-finished with premium Sikkens coatings — a multi-coat system including primer, undercoat, and topcoat for a flawless, lasting finish.

What We Offer

• Box sash windows — traditional double-hung sash windows with cords and lead weights.
• Casement windows — flush casement and stormproof designs.
• Slim Georgian bars — authentic planted or run-through glazing bars.
• Arched and shaped windows — gothic, segmental, and true-arch heads.
• Doors — French doors, bifold doors, sliding doors in matching timber.

How It Works

• 1. Design online — Use our 3D configurator to design and price your windows instantly.
• 2. Free survey — We visit your Hampstead property, measure precisely, and confirm the specification.
• 3. Manufacture — Your windows are built in our workshop. Typical lead time 6–8 weeks.
• 4. Installation — Our FENSA-certified fitting team installs your windows with minimal disruption.

Areas We Cover in Hampstead

We serve all areas of Hampstead including Hampstead Village, Hampstead Heath, South Hampstead, West Hampstead, Fortune Green, Frognal, and Belsize Park. Our workshop location allows prompt service throughout the NW3, NW6, NW11 and surrounding postcodes.