Traditional and elegant Sliding Sash Windows for that period charm
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Combine the elegance and historic charm of traditional windows with the advanced technology of high-performance double-glazing.
Our vertical sliding uPVC sash windows blend the elegant appearance of traditional windows with the latest high-performance double-glazing technology. Inspired by classic designs, they offer superior energy efficiency, security, and acoustic performance, keeping your home cosy and secure.
They can be single-hung or double-hung, depending on whether you want a single sliding panel or the ability to slide both window panels.
Our sliding sash windows won’t rattle, jam, or let draughts in. Instead, they will help reduce home fuel bills and, unlike timber windows, are virtually maintenance-free.
Ideal for replacing timber sliders in historic buildings and adding character to any development.
- Individually tailor-made to your exact requirements.
- Energy efficient.
- Reduce unwanted external noise.
- Minimal maintenance.
- Secure.
- Extensive choice of designs.
- Available in various foiled finishes, both woodgrain and solid colour.
- Range of handle colours to compliment the finish of your windows.
- Wide range of glass designs, from leaded to Georgian bar.
Why choose Glevum for your replacement sliding sash windows in Cheltenham, Gloucester, Hereford and Monmouth?
- Established in 1984, so have a wealth of knowledge and experience.
- We are a leading Gloucestershire-based FENSA-approved window and door installer.
- Our windows and doors are covered by a 10-year insurance-backed guarantee (backed by the GGFi).
- Dedicated Service Department.
- 45,000+ customers benefit from the security and quality of our windows and doors.
- Typically, 50% of our work comes from existing customers and recommendations.
- A range of Finance Options available.
Add a splash of colour.
Our Sliding Sash Windows come in various colour finishes, including classic white, woodgrain options like rosewood and golden oak, and a range of modern solid colours. While white offers a popular, clean, and refreshing appearance for your home, you might find that one of our other finishes complements your property better. Moreover, you don't have to use the same colour on both sides of your windows; you can choose a woodgrain or a coloured finish for the external frame while opting for a white frame on the interior. The decision is entirely yours!
Opting for coloured window frames gives you the great look of traditional painted timber windows but with all the benefits of modern uPVC windows, including enhanced security and energy efficiency. Also, coloured uPVC windows from Glevum will look fantastic year after year with virtually no maintenance! Our coloured windows feature a fine wood grain effect, which maintains traditional timber window frames' authentic look and feel at a fraction of the cost.
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A truly professional company, who respected our home, were courteous and helpful when dealing with us.
M. Wear (Gloucester)
Every member of staff we have dealt with provided excellent customer service they were friendly and professional. We are happy to recommend the company.
S. Groves (Swindon)
Excellent service from start to finish. Well explained on the initial home visit and questions answered fully. Easy to make payments and such a professional and pleasant experience. I would recommend to others and would definitely use the company again.
B Rollins (Gloucester)
Glevum Windows and doors are of excellent quality and the fitters, Matt and Dean were both quick, efficient and tidy workers. We found them both friendly and polite. We would not hesitate to recommend the Company and the service they provided.
N Harris (Pershore)
A very personal service; I felt valued as a customer and they listened to what I wanted. Excellent quality of product and service. I decided not to go with a larger well-known brand as they did not provide the same personal service in the quotation stage.
J. Miller (Symonds Yat)
Excellent everyone was professional and yet friendly. I felt all were giving me good service and I felt a valued customer.
D. Morse (Lydney)
Always helpful and courteous whichever department one is speaking with.
Fitters are skilled and careful. Products are not the cheapest on the market but they are of the best quality and extremely good value for money.
R. Savage (Worcester)
Excellent service from start to finish, we had secondary Glazing fitted into our dental practice. Glevum attended when they said they would, completed the job with minimum disturbance to the daily running of the practice, and left their work place clean and tidy. The glazing has made such a difference, staff are much warmer and the radiators have been turned to low.
H. Pugh (Gloucester)
Glevum were prompt in quoting for the work. The order was placed and doors and windows far more quickly than other companies were able. The fitting was completed to a high standard. I'm very happy with the work and product!!
K. Smit (Bristol)
So happy with installation, can really feel the difference in room temperature. Fitters were excellent, very pleasant and left everywhere clean and tidy. Very professional job. Would certainly recommend. Thankyou Glevum.
L. Hollis (Ross-on-Wye)
A truly professional company, who respected our home, were courteous and helpful when dealing with us.
M. Wear (Gloucester)
Excellent service from start to finish. Well explained on the initial home visit and questions answered fully. Easy to make payments and such a professional and pleasant experience. I would recommend to others and would definitely use the company again.
B Rollins (Gloucester)
Every member of staff we have dealt with provided excellent customer service they were friendly and professional. We are happy to recommend the company.
S. Groves (Swindon)
Glevum Windows and doors are of excellent quality and the fitters, Matt and Dean were both quick, efficient and tidy workers. We found them both friendly and polite. We would not hesitate to recommend the Company and the service they provided.
N Harris (Pershore)
A very personal service; I felt valued as a customer and they listened to what I wanted. Excellent quality of product and service. I decided not to go with a larger well-known brand as they did not provide the same personal service in the quotation stage.
J. Miller (Symonds Yat)
Excellent everyone was professional and yet friendly. I felt all were giving me good service and I felt a valued customer.
D. Morse (Lydney)
Always helpful and courteous whichever department one is speaking with.
Fitters are skilled and careful. Products are not the cheapest on the market but they are of the best quality and extremely good value for money.
R. Savage (Worcester)
Excellent service from start to finish, we had secondary Glazing fitted into our dental practice. Glevum attended when they said they would, completed the job with minimum disturbance to the daily running of the practice, and left their work place clean and tidy. The glazing has made such a difference, staff are much warmer and the radiators have been turned to low.
H. Pugh (Gloucester)
Glevum were prompt in quoting for the work. The order was placed and doors and windows far more quickly than other companies were able. The fitting was completed to a high standard. I'm very happy with the work and product!!
K. Smit (Bristol)
So happy with installation, can really feel the difference in room temperature. Fitters were excellent, very pleasant and left everywhere clean and tidy. Very professional job. Would certainly recommend. Thankyou Glevum.
L. Hollis (Ross-on-Wye)