top of page

​

Custom Box Sash Windows in London – Made to Measure by Barnsbury Joinery

​

Looking for where to get custom box sash windows made in London? At Barnsbury Joinery, we handcraft bespoke box sash windows in our London workshop, combining traditional joinery techniques with modern glazing options for energy efficiency, security, and timeless style. Whether you live in a Georgian townhouse in Islington, a Victorian terrace in Hackney, or a property within a conservation area, our team designs, builds, and installs sash windows to the highest standard.

​

Why Choose Custom Box Sash Windows?

​

  • Authentic craftsmanship tailored to period properties

  • Made-to-measure for a perfect fit every time

  • Choice of hardwood or softwood timber

  • Slimline double glazing options for conservation areas

  • Long-lasting, durable finishes

  • Enhances property value and kerb appeal​

​

Our Craftsmanship in London

​

Each sash window is designed and manufactured in our London workshop by experienced joiners. We carefully replicate original profiles and details while integrating discreet modern upgrades such as low-E glazing, draught-proofing, and high-performance hardware.

Our bespoke service means your new sash windows will blend seamlessly with your home’s architecture while delivering outstanding energy efficiency and security.

​

Materials & Options

We offer a full range of styles and finishes:

​

  • Timbers: Hardwood (oak, sapele), softwood (pine)

  • Glazing options: Single, slimline double glazing, acoustic glass, toughened safety glass

  • Finishes: Painted, primed, or natural wood finish

  • Hardware: Traditional pulleys & cords, modern balances, secure locks

 

Areas We Cover Across London

 

Our sash window joinery services are available throughout London and surrounding areas, including:

​

  • Islington

  • Camden

  • Hackney

  • Clerkenwell

  • Highbury

  • Westminster

  • Barnet

  • Enfield

  • Hertfordshire

 

Frequently Asked Questions

 

Q: Where can I get custom box sash windows made in London?
A: Barnsbury Joinery handcrafts bespoke box sash windows in London, designed to match your property’s original style while providing modern insulation.

 

Q: Do you supply slimline double glazing for conservation areas?
A: Yes. Our slimline double glazing looks like traditional single glazing but offers excellent thermal performance and is approved for use in many conservation areas.

 

Q: How long does it take to make custom sash windows?
A: Lead times vary, but most projects are completed within 8–12 weeks depending on size and complexity.

 

Q: Do you provide installation as well as manufacturing?
A: Yes — we offer both supply only for trade customers and supply & installation for homeowners across London.

 

Get a Free Quote for Custom Box Sash Windows

Ready to enhance your home with bespoke sash windows?

 

📞 Call us on +442071646305
📧 Email: info@thebarnsburygroup.com

bottom of page