Discover the benefits of double glazed flush sash windows for your home
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Consider upgrading your home with double-glazed replacement flush sash windows to enhance both appearance and security. Explore their key advantages below.
Smart as Standard: These windows include Kubu® Smart Security Sensors. The Kubu® Smart Alerting System lets you check whether your window is open, closed, or being tampered with via a smartphone app. T&Cs apply.
- Modern, clean appearance.
- Slim sight lines for enhanced views.
- Exceptional energy efficiency.
- Excellent value for money.
This window range has achieved a top-tier BFRC energy rating of A++ for select configurations, with other options rated A+.
With over 40 years of experience and a strong reputation in Gloucestershire, Glevum ensures a smooth window replacement process. Our windows include a 10-year insurance-backed guarantee for quality and durability. Financing is available, allowing you to upgrade to energy-efficient windows without delay. To get started, book a free home visit and discover why many homeowners choose Glevum.
What are the main benefits of double-glazed flush sash windows for my home?
Double-glazed flush sash windows enhance your home's appearance and security while providing excellent weather protection and energy efficiency, helping to reduce heating costs.
How do smart features like Kubu® Smart Security Sensors improve the safety of flush sash windows?
Kubu® Smart Security Sensors enable you to check whether your windows are open, closed, or being tampered with via a smartphone app, adding an extra layer of security.
Are these windows suitable for both modern and traditional homes?
Yes, these windows feature a sleek, modern design with a flush fit that complements both traditional and contemporary homes, enhancing their aesthetic appeal.
What kind of energy efficiency can I expect from these windows?
These windows can achieve a top-tier BFRC energy rating of A++, with some configurations rated A+, significantly improving energy efficiency and lowering heating bills.
Why should I choose Glevum for my window replacement project?
Glevum has over 40 years of experience, is FENSA-approved, offers a 10-year guarantee, and has served over 45,000 customers, providing reliable, high-quality service and products.
Looking for replacement flush sash windows in Cheltenham, Gloucester, Hereford or Monmouth? Then here’s why you can feel good about working with Glevum:
- We have been in business since 1984 and bring a wealth of knowledge and experience.
- We are a leading FENSA-approved window and door installer based in Gloucestershire.
- We are a Kubu Pro Installer.
- All our windows and doors include a 10-year GGFi-backed guarantee.
- Our dedicated Service Department is here to support you.
- More than 45,000 customers enjoy the security and quality of our windows and doors.
- About half of our work comes from returning customers and recommendations.
- We offer a range of Finance Options. Just ask for details during your free home visit or quote.
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We have used Glevum many times over the last 25 years and have never been disappointed with the quality of workmanship, timely service and friendly approachable people.
M. Tattersall (Gloucester)
Very good, excellent communication, highly recommended.
M. Thomas (Lydney)
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)
We have used Glevum many times over the last 25 years and have never been disappointed with the quality of workmanship, timely service and friendly approachable people.
M. Tattersall (Gloucester)
Very good, excellent communication, highly recommended.
M. Thomas (Lydney)
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)