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North London’s sash window restoration experts. Revitalize your North London home’s sash windows with professional restoration services.
Are you experiencing any of these sash window issues at home? Problems like sticking sashes, drafts, or rattling windows are common in older homes. Our expert restoration services in North London can solve these issues, ensuring your sash windows function smoothly and maintain their period charm.
Rotten window frames
Heat loss through single glazing
Draughts and rattling
External noise
Condensation on windows
Your home’s wooden windows are a key feature of its period charm. If they’re struggling with rot, drafts, or poor insulation, our North London team can restore them to their original beauty and function, enhancing both your home’s appearance and energy efficiency.
Our draught-proofing service addresses worn or missing window seals, loose frames, and faulty sashes.
We install high-quality weatherstrips, seal gaps, and lubricate pulleys to ensure smooth movement while keeping your home free from unwanted drafts.
Repairing areas of rot in window frames and sills to restore appearance and functionality.
Fixing or replacing broken window balance springs to ensure smooth window operation and stability.
Single-glazed sash windows in North London homes often result in drafts, condensation, and increased energy bills.
Our sash window double glazing service upgrades your windows with energy-efficient glass, improving insulation and noise reduction while preserving their classic style. Enjoy a quieter, more energy-efficient home.
Vacuum double glazing sits between single and triple glazing in terms of performance.
Compared to single glazing, vacuum double glazing dramatically improves insulation and noise reduction, while being much thinner than traditional double glazing.
Triple glazing provides even greater insulation, but its thickness makes it less suitable for period homes or properties with limited rebate depth.
Vacuum glazing offers a balance of modern efficiency and slim design, making it a perfect fit for heritage or listed properties.
Sash window restoration and double glazing in Lincolnshire
We recently completed a fascinating sash window restoration and vacuum double glazing project in Lincolnshire, despite this location being a […]
Bishop’s Stortford sash window reglazing with vacuum double glazing
At this charming period property in Bishop’s Stortford, Herts, we successfully completed the retrofitting of original wooden sash windows with […]
Double glazing of sash windows in a period property in Suffolk
This double glazing and refurbishment project took place in a beautiful period property located in Suffolk, featuring a classic brick […]
Sash windows double glazing Barnet
This project involved the retrofitting of vacuum double glazing into the original sash windows of a charming Edwardian-style property located […]
Cottage windows double glazing retrofit
Window frames before restoration and reglazing The cottage windows in this restoration and reglazing project were weathered and deteriorated, needing […]
Double glazing existing sash windows in Harpenden
The project in Harpenden, Hertfordshire involved upgrading original sash windows by replacing single glazing with vacuum insulated glass (VIG) units […]
Replacement of double-glazing units and refurbishment of wooden frames
The project involved the refurbishment and replacement of double-glazing units in a traditional residential bay window. Traditional bay window with […]
Sash windows restoration & reglazing in Northamptonshire
Restoration of sash box frames and sashes, followed by upgrading existing sashes with double glazing Preparation steps Wooden window restoration […]
Sash windows double glazing Bedfordshire
Earlier this year in Bedfordshire, we completed a delightful sash window double glazing retrofit project. Our team successfully preserved the […]
Sash window renovation Cambridge
This Georgian property located in Cambridge exhibits elegant proportions characteristic of its period, as well as window units, which are […]
Hotel Sash window restoration in st. Ives
A tasteful property near St. Ives is currently in use as a hotel. The building has a range of sash’s […]
Georgian sash windows restoration St Albans
Six over Six windows specialists undertook this large-scale job in St. Albans tasked with fully restoring and redecorating all sash […]
Grade 2 Listed Sash window restoration Cambridgeshire
This truly stunning Grade II listed property located in Cambridgeshire is really a great exhibit of Georgian architecture. It is […]
Wooden windows restoration Luton
This attractive building located near Luton embodies styles from a few different periods, including Stuart and Tudor, with its small […]
Sash window refurbishment Hertfordshire
The owners got in touch with us directly to carry out all renovation and redecoration of the timber windows at […]
Six Over Six Windows has been a pleasure to work with from the moment I contacted them until the project was completed. Chris in the office responded to all of my questions promptly, and the team was accommodating when I had to reschedule due to personal reasons. The work began a day ahead of schedule and was finished even sooner than expected. The joiners and painters were professional and respectful and made sure to leave the area clean at the end of each day. After receiving multiple quotes, I found Six Over Six Windows to be both more professional and more reasonably priced than other companies. I couldn’t be happier enjoying the beautiful result.
Accoya wood is a premium, sustainably sourced timber renowned for its durability and resistance to rot. We use Accoya for window restorations and replacements to ensure your windows last longer while being environmentally friendly.
We offer discreet ventilation systems that integrate seamlessly with your windows and doors, improving air circulation, reducing condensation, and promoting a healthier indoor environment without affecting the appearance of your home.
We offer bespoke glazing bars and mouldings tailored to your windows’ original design, allowing you to preserve the period detail while upgrading to modern glazing solutions.
Whether you need traditional profiles or unique custom designs, we craft these elements with precision to seamlessly blend old-world craftsmanship with modern efficiency.
Wooden window restoration brings improved energy efficiency, maintains the original charm of your property, and promotes environmental sustainability by avoiding replacements.
Save on redoing the interior and exterior after fitting new windows
Reduce external noise
Save on energy bills and heating
Fix draughts
Meet new energy efficiency standards
Improve comfort and value of your property
Save on complete window replacement
How does the U-value of vacuum glazing compare to single glazing?
Vacuum glazing has a much lower U-value compared to single glazing, meaning it provides far better insulation. While single glazing has a U-value of around 5.0 W/m²K, vacuum glazing can achieve values as low as 0.7 W/m²K, providing excellent thermal efficiency.
Is retrofitting double glazing suitable for listed buildings?
Retrofitting double glazing can be suitable for listed buildings, but it typically requires listed building consent. We use slimline or vacuum glazing options that meet conservation standards and ensure that the building’s historical appearance is preserved.
Can retrofitting affect the appearance of my windows?
Retrofitting is done carefully to preserve the original appearance of your windows. Slimline or vacuum glazing options ensure that the original aesthetics are maintained, especially important for period or listed properties.
