Why homeowners choose Novells for sash cord repairs in London
Worn or broken sash cords are more than a nuisance; they can make even the most beautiful window a daily frustration.
At Novells, we specialise in sash cord replacement for period properties across London, combining craftsmanship with care to restore your windows’ function.
Whether you live in a Victorian villa in Chelsea, a Georgian townhouse in Richmond, a Semi in Surbiton or a flat in Wandsworth, we’ll replace your sash cords with the minimum fuss, treating your home as if it were our own.
We pride ourselves on being respectful, clean installers who turn up on time, protect your floors and treat your home with real care. Our team never leaves a mess and always works with the courtesy you would expect from a specialist sash cord replacement company serving London residents. That level of care runs right through to our technical expertise. We have repaired and restored thousands of period sash windows over the years, balancing weights, renewing cords and carrying out detailed craftsmanship without ever rushing the job.
As a FENSA-registered company, every installation is completed to our own rigorous standards and supported with full aftercare and solid workmanship guarantees. Novells has earned the trust of homeowners across South London, including prestigious projects at the V&A Museum and many beautiful homes throughout London. Our results speak for themselves, as do the five-star reviews that continue to reinforce the quality of our sash window installations.
WHAT OUR CLIENTS SAY ABOUT NOVELLS SASH WINDOWS
“The team made the process so easy and the results are beautiful!“
Professional cord repairs in London
Keeping your sash windows working as they should
Most homeowners first realise their sash cords need replacing when the window refuses to stay open, drops unexpectedly or begins to feel unusually heavy. Sometimes the warning sign is more dramatic, such as a cord snapping and the weight thudding inside the frame. Even if only one cord appears to have failed, it is usually wise to replace both on that sash so everything stays balanced and operates smoothly for years to come. Many older windows also show signs of paint build up or worn pulleys that affect movement, so a full check during cord replacement is always worthwhile.
Replacing a sash cord is a precise job that involves removing the sash and trims, fitting new cord through the pulleys, reconnecting the weights and testing the balance so the window glides freely. Depending on the window condition, this can take from half an hour to a couple of hours per sash. The choice of cord also matters. Traditional waxed cotton remains a favourite for heritage work, while modern nylon cords offer added strength and durability, particularly for heavier sashes or upgraded glazing.
Homeowners in South London and Surrey often ask which option is best for their property. At Novells, we guide you through every step, ensuring each sash is balanced, smooth and secure, using the right materials for longevity and period authenticity. With thoughtful workmanship and a tidy approach, sash cord replacement becomes a simple, stress-free improvement that restores comfort, safety and the ease of everyday use.
We cover Putney, Wandsworth, Southfields, Earlsfield, Battersea, Clapham, Balham, Tooting, Roehampton, Fulham, Wimbledon, Chelsea, Kensington, Stockwell, Brixton, Streatham, West Norwood, Herne Hill, Kingston, Surbiton, New Malden, Richmond, Barnes, Twickenham and Teddington.
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Frequently Asked Questions (FAQs)
People often notice that a sash won’t stay open, drops or slams down, lifts unevenly, feels unusually heavy, or may even see a frayed cord or hear a thud inside the frame (the counterweight dropping). Our sash repair service in London, will happilly advise you in whether your cords need replacing.
Many professionals recommend replacing cords in pairs on a single sash to ensure balanced, smooth operation and to avoid future failures on the ‘weaker’ side.
The process typically involves removing the sash and trims, re-threading new cord through the pulleys, re-attaching weights and checking balance. This is a job that for one window often takes between 30 minutes and 2 hours, depending on paint build-up, access and condition of hardware.
Historically, sash cords were waxed cotton; nowadays, nylon (or other modern materials) is often preferred for heavier or upgraded windows, because they’re more durable and stretch less under load.