Glevum Windows Doors Conservatories

Traditional and elegant Sliding Sash Windows for that period charm

Vertical Sliding Sash uPVC Windows
Glevum Sliding Sash Vertical Sliding Windows uPVC

Combine the elegance and historic charm of traditional windows with the best in high-performance double-glazing window technology.

Our vertical sliding uPVC Sash Windows combine the elegance and historic charm of traditional windows with the best in high-performance double-glazing window technology. Inspired by classic design, our sliding sash windows provide the best in energy, security, and acoustic performance, helping to keep your home cosy and secure.

They can be single-hung or double-hung, depending on if you want a single sliding panel, or to be able to slide both window panels.

Our sliding sash windows will not rattle, jam, or let draughts in; instead, they will reduce home fuel bills and unlike timber windows, are virtually maintenance-free.

Suitable for both replacing existing timber sliders in period 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 a variety of 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.

Add a splash of colour.

Our Sliding Sash Windows are available in a variety of colour finishes from classic white, to woodgrain effect rosewood, and golden oak as well as a wide selection of contemporary solid colours. Although white is an extremely popular, clean fresh look for your home, one of our other finishes may also suit your property. You do not even have to have the coloured effect on both sides of your windows, you can decide to have a woodgrain or coloured effect window on the external frame whilst keeping a white frame on the inside, the choice is yours!

Opting for coloured window frames, you get the great look of traditional painted timber windows but with all the benefits of modern uPVC windows, including enhanced security and energy efficiency; not only that, 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 the authentic look and feel of traditional timber window frames at a fraction of the cost.

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0800 332255

Glevum Windows Doors Conservatories. Leading AWARD-WINNING Gloucestershire supplier and installer of Aluminium and uPVC.

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Glevum Windows Doors Conservatories. Leading AWARD-WINNING Gloucestershire supplier and installer of Aluminium and uPVC.

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)

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