Business Details
23 Years
experience
Expert Sash Window Restoration & Joinery Services in Kent
Established two decades ago, Box Sash Windows has built a reputation for excellence in timber joinery and sash window restoration across the southeast of England. Our Fensa-registered team, affiliated with The Guild of Master Craftsmen and Quality Assured through QA, specialises in preserving the architectural integrity of period properties while enhancing energy efficiency. With a dedicated workshop in Herne Bay, we combine traditional craftsmanship with modern techniques to deliver draught-proofing, double-glazed sash windows, and bespoke joinery solutions.Our commitment to quality is evidenced by our use of Planitherm High-Performance Double Glazing and Timbercare products, alongside a 30% cost advantage over competitors. We serve Kent, Sussex, South London, and surrounding areas, offering free site surveys and guaranteed customer satisfaction for every project.
Services
Draught Proofing
Double Glazed Window Repairs
Timber Repairs
Window Furniture
Joinery Services
Sash Window Restoration
Resin Repairs
Glazing Replacement
Casement Window Installation
Hardwood Door Restoration
Details
- Year established: 2003
Highlights and features
- 20 years of specialist experience in sash window restoration
- FENSA-registered with Quality Assured insurance-backed guarantees
- 30% lower pricing compared to industry competitors
- Free site surveys conducted by owner Louis Brett personally
- Energy-efficient double-glazing solutions with Planitherm technology
Associations and certifications
- FENSA
- The Guild of Master Craftsmen
- QA (Quality Assured)
What people say
100% customer satisfaction
Professional service
Reliable team
Expert craftsmanship
Competitive pricing
Services
Draught Proofing
Our draught-proofing system involves dismantling windows, installing brush strips, and re-cording sashes to eliminate heat loss. This process improves energy efficiency by reducing heat loss through windows by up to 20%. We use professional-grade materials and techniques to ensure long-lasting results.
Timber Repairs
Specialist restoration of decayed timber windows using Dry Flex Resin and Timbercare products. We repair sash weights, pulleys, and rotten frames while maintaining original architectural features. Our methods preserve historical integrity while improving thermal performance for modern energy standards.
Double Glazed Sash Windows
Manufacture and installation of slim double-glazed sash windows using Planitherm Total+ glass. These units maintain period aesthetics while achieving significant noise reduction and thermal efficiency. Argon gas-filled units provide optimal insulation without altering original window designs.
Window Furniture
Supply and installation of high-quality window hardware including brass, chrome, and satin black finishes. We offer antique brass, polished chrome, and custom finishes to complement period properties. All fittings enhance functionality while maintaining traditional aesthetics.
Joinery Services
Bespoke manufacturing of sash windows, casement windows, and hardwood doors in traditional Victorian, Georgian, and period-specific designs. Our workshop creates exact replicas or modified designs to meet planning requirements while preserving architectural symmetry.
People
Louis Brett
Owner & Lead Surveyor
With 20 years' experience in heritage window restoration, Louis Brett personally conducts all site surveys and oversees major projects. His expertise ensures compliance with conservation area requirements while delivering modern energy efficiency solutions.
Questions
What areas do you cover for sash window services?
We operate across Kent, Sussex, South London, and the southeast of England. Free quotes are available for all these areas.
How much do your sash window repairs cost?
Our prices are 30% lower than most competitors, with exact costs determined after free site surveys conducted by our owner.
Can you restore listed building windows?
Yes, we specialise in Grade 2 listed property window replacements and period-appropriate restorations while maintaining original architectural features.
Do you offer double glazing for sash windows?
We install slim double-glazed units using Planitherm technology that maintain period aesthetics while improving energy efficiency.
What accreditations do you hold?
We are FENSA-registered, members of The Guild of Master Craftsmen, and Quality Assured with insurance-backed guarantees.
How long does sash window restoration take?
Typical projects handle 2-4 windows daily, with full restorations taking longer depending on repair extent and property requirements.
Reviews (7)
Pamela Jordan
Nov 16, 2021
Report
We had some new hardwood double glazed sash windows made and fitted by Louis to replace our old draughty rotting sashes. Louis was very professional from initial quote to the day of fitting. Louis and Adam were prompt on the day and not only did an amazing job fitting the new sashes but also cleaned up really well. The windows are an absolute joy! No more windows dripping in condensation and much quieter and warmer. Just need to save up to get the rest of the house done! Highly recommended.
Simon
Jul 28, 2021
Report
Meridian Box Sash Windows is by far the most unprofessional and unreliable company I have ever dealt with. Three times over a 10 week period, I spoke to them regarding a quotation for window refurbishment and I was let down every time. They never once showed up and never replied to my emails or text messages. A complete waste of my time. I wouldn't recommend this company to anybody
Sylvia Mait
Apr 14, 2021
Report
FANTASTIC JOB Victorian House Bay windows up stairs and down plus side window to front of house completed in one day. Professional polite and very clean used dust sheets everywhere and cleaned up leaving no mess at all. I WOULD RECOMEND TO ANYONE WITHOUT DOUBT.
Michael Bassett
Mar 01, 2021
Report
About two years ago, Meridian Sash replaced our old single pane windows with double glazed sash versions (filled with argon gas and with draft proofing). The new units were created to fit the old frames, and to reflect the original design of the house. They look fantastic, and perform extremely well. We've had only positive feedback from visitors and neighbours alike. And, the house now performs much better in terms of energy costs for heating. Our experience of Louis and his team of installers was great, and we really appreciated having them in to do the work. We recommend them to anyone looking
Belinda Berg
Feb 17, 2021
Report
Luis was excellent from first quote to updates and installation. Our windows look brilliant and we now have the same look as our original
Windows without the drafts ! Very pleased with the whole job and cant recommend highly enough.
Windows without the drafts ! Very pleased with the whole job and cant recommend highly enough.
Chris Bennell
Feb 04, 2021
Report
I got on well with Louis straight from the start, and it was very easy to come to an agreement on what we needed. Louis and His team at Meridian completed the job on time and to a high standard. We have recommended him to some of our friends too!
Sara Pennington
Jan 19, 2021
Report
Highly recommend Meridian Box Sash Windows. Superb craftsmanship and professional service. Also a competitive price.
