Cheltenham & Gloucestershire
Sash Window Repair & Restoration Specialists in Cheltenham
We repair, draught proof and upgrade original timber sash windows across Cheltenham and Gloucestershire. Most jobs take one to three days per property, cost far less than replacement, and are carried out in conservation-grade timber — Accoya, Sapele or matched slow-grown softwood — with a 10-year guarantee.
Request a Free Restoration Survey
Tell us about your windows and we will arrange a no-obligation survey, usually within five working days.
- Conservation Area Compliant
- 10-Year Guarantee
- Traditional Joinery Specialists
- Dual Workshop & On-Site Expertise (Master Carpenters & Joiners)
Specialist Sash Windows in Cheltenham & The Cotswolds
From the Regency terraces of Montpellier and Lansdown to the Victorian villas of Pittville and stone cottages across the Cotswolds, original timber sash windows define the character of our area. We provide full repair, restoration, draught-proofing and heritage timber sash window services for homes across Cheltenham, including listed buildings and properties in conservation areas — keeping original fabric wherever possible and restoring smooth, quiet, draught-free operation.
Repairing original timber sashes is almost always the better choice than uPVC replacement. Bulky plastic profiles spoil the slender glazing bars of period frontages and are routinely resisted by Cheltenham Borough Council in conservation areas. Properly maintained slow-grown timber lasts well over a century; by splicing in Accoya or Sapele, renewing cords and pulleys and fitting concealed brush seals, we bring your windows up to modern comfort standards while protecting authenticity and value.
Sash window services in Cheltenham
We offer four core services: timber rot and sill repair, brush-pile draught proofing, slimline heritage double glazing and full restoration. All work is carried out by master carpenters and joiners using Accoya or Sapele splices, linseed putty and microporous heritage paint, from a single sticking sash to a whole Montpellier terrace.
Our combined workshop joinery and on-site carpentry capability allows us to custom-craft bespoke timber sections off-site while completing seamless, clean installations at your property.
Sash Window & Timber Rot Repair
Spliced timber repairs, new sills, renewed cords, weights and pulleys for sticking or rattling sashes.
Explore sash window repairDraught Proofing
Discreet brush pile seals routed into the sash to stop draughts, rattles and heat loss.
Explore draught proofingHeritage Double Glazing
Slimline double-glazed units fitted into your original frames, compliant with conservation rules.
Explore heritage double glazingFull Restoration
Complete overhaul: strip, repair, reglaze, draught proof, rebalance and repaint to a heritage finish.
Arrange a restoration survey
Complementary heritage timber services
Beyond sash windows, our master carpenters and joiners are equipped for both precision on-site repairs and off-site workshop fabrication across the rest of your period property’s timber joinery. See them all on our heritage joinery services page.
Period Front Door Restoration & Porticos
Specialist repair, timber splicing, and weather-sealing for Georgian, Victorian, and Edwardian solid timber entrance doors, fanlights, and surrounding timber porticos.
Timber Casement Window Repairs
Draught-proofing, rot removal, hinge servicing, and frame alignment for traditional wooden casement and cottage windows in conservation areas.
Timber Bifold & French Door Rot Splicing
Surgical removal of decayed bottom rails and stiles on glazed patio doors. We splice in durable Accoya or Sapele timber and seal with marine-grade epoxies, saving the existing door set.
Heritage Shutters & Interior Window Joinery
Precision repair and restoration of original internal timber folding shutters, architraves, window sills, and internal timber linings.
Compare our sash window services
Draught proofing is the quickest and cheapest comfort upgrade, timber rot repair saves a failing sash outright, and slimline heritage double glazing gives the largest thermal gain. Most Cheltenham homes benefit from combining repair with perimeter sealing first.
| Service | Typical Timeline | Thermal Gain | Ideal Property Type |
|---|---|---|---|
| Draught Proofing | 1–3 days for a whole house | Cuts window air leakage by up to 80% | Any original sash — Montpellier and Lansdown terraces especially |
| Sill & Timber Rot Repair | 1–2 days per sash or sill | Restores the seal line and stops damp-driven heat loss | Victorian and Edwardian homes in Charlton Kings and Leckhampton |
| Heritage Double Glazing | 2–4 weeks including unit manufacture | Glass U-value from about 5.0 down to 1.6 W/m²K | Regency and Victorian houses in Pittville and the town centre |
Where we work across Cheltenham
We cover Montpellier, Pittville, Charlton Kings, Lansdown, Leckhampton and the town centre, plus Gloucester, Stroud, Cirencester and the Cotswolds. Surveys are free and usually booked within a week, so we know the sash types, conservation constraints and Article 4 rules street by street.
Montpellier
Tall Regency six-over-six sashes with fine glazing bars and stucco reveals.
Pittville
Grand villas where box frames and original crown glass are usually worth saving.
Charlton Kings
Victorian and Edwardian homes with rot at the sill and cill horns.
Leckhampton
Stone-built period properties needing sensitive draught proofing.
Lansdown
Conservation-area terraces where consent and profile matching matter.
Cheltenham Town Centre
Listed frontages and flats above commercial units, worked around access.
We also work further afield across Gloucestershire and the Cotswolds — see our dedicated pages for Gloucester, Stroud and the Five Valleys, the Cotswolds and Cirencester.
Cheltenham Sash Window FAQs
Planning rules, running costs and what can realistically be saved on a period property.