High-Quality Aluminium Replacement Windows for a sophisticated, modern look
Here to help
Our made-to-measure aluminium windows feature a modern aesthetic that complements traditional and contemporary properties.
The traditional casement window is our best-selling style due to its ease of use and range of finishes. These custom-made-to-measure aluminium windows can be hinged from the side or top with an easy-open outward mechanism.
- Modern aesthetics.
- 70mm frame to allow light to flood into your home.
- Side or top hung opening.
- Secure (British security certification PAS 24).
- Excellent energy-efficiency
- Acoustic insulation to help reduce outside noise.
- A long-lasting, durable profile with the strength to last a lifetime.
Here’s why you can feel good about working with Glevum for your replacement aluminium casement 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.
Unlimited colour range:
The whole RAL colour chart is available in powder coating, metallic, textured, wood effect, over 100 anodised finishes, and even two-coloured finishes.
Alternative Configurations:
Tilt and Turn (two-way opening): Tilt-and-Turn windows benefit from a hinge mechanism that allows you to tilt the window inwards (from the bottom) for ventilation and easy cleaning. This makes them ideal window configurations for balconies and terraced houses, as they can fully open inwards to help you better use outdoor space (especially for balconies).
Bay Style Window: Designed to create a sense of space, depth, and light. Using our casement windows, they can be individually tailor-made to your exact requirements.
Bay with Tilt and Turn: You can also incorporate Tilt and Turn within a Bay-style window.
Related Blog(s)
- Replacement Windows: Your Essential Guide
- What is Closed Loop Recycling, and what are the benefits?
- 7 Signs You Need to Replace the Windows in Your Home.
- Property Trends: A Look Back at 2024 & What to Expect in 2025.
- 10 Reasons Why Regional Installers Are Better Than National Ones.
- What factors will influence your windows and doors quote?
- Why cheapest may not always be best when it comes to doors and windows.
- Pitfalls to avoid when buying new windows and doors and how to avoid them.
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)