Double Glazing in Cheltenham
Here to help
Glevum Windows are one of the largest independent installers of windows, doors, and conservatories in the South West and has been a trusted name in Cheltenham since 1984.
While our heartland is Gloucestershire, we are also recognised for quality installations across Herefordshire, Worcestershire, Monmouthshire, Wiltshire, and nearby counties.
Cheltenham is an historic spa town, following the discovery of mineral springs in 1716. Located adjacent to the Cotswolds and northeast of Gloucester, it is world-famous for its Regency and Georgian townhouses with large sash windows, but it also has more modern detached and semi-detached family homes, ranging from 1930s builds to newly built and as such calls for a local expert like Glevum Windows when it comes to replacing windows, doors or adding a conservatory.
So, if you are thinking about upgrading your Cheltenham home with new replacement windows, doors, or a Conservatory, please contact us for your Free Home Visit or visit our comprehensive Window & Door Showroom and outdoor Conservatory Village.
Please browse our Customer Testimonials, Google and Trustpilot reviews.
Replacement uPVC and Aluminium Windows for your Cheltenham Home.
Every home has its own character. We offer custom solutions to fit your style and needs, whether you like classic sash windows or modern aluminium designs.
Upgrading your old uPVC or aluminium windows can improve your Cheltenham home’s kerb appeal, security, and energy efficiency. Pick from a range of colours and styles to give your home a fresh look and enjoy a safer, easier-to-care-for, and more comfortable space.
Aluminium, uPVC and Composite Doors in a finish ideally suited to Cheltenham Properties.
Your front door does more than let you in and out. It reflects your style, greets your guests, adds value to your property, helps save energy, and keeps your home secure. With so many choices, you can find the right door for your Cheltenham home.
Picking the right front door helps your home make a great first impression. Patio, French, and bi-fold doors also open your space to the garden, so you can enjoy more of the outdoors from inside.
Bespoke Conservatories to add additional space to your Cheltenham Home.
At Glevum, we design modern conservatories, orangeries, and home extensions tailored to your style and budget. Our clear pricing and payment plans make it easy to get the space you want. Enjoy a bright, energy-efficient area that links your indoor and outdoor spaces, ideal for relaxing, working, or entertaining.
Smart Windows & Doors for extra peace of mind.
Keeping your home secure is important. Our Smart Windows and Doors offer Cheltenham homeowners a modern way to protect what matters most.
Our Smart range does more than regular windows and doors. Each one includes built-in Kubu® Smart Security sensors that monitor your home in real time and send alerts when something needs your attention.
You get real-time alerts and can check your home from anywhere, giving you more control over your security.
In the UK, 35% of break-ins happen because windows or doors are left unsecured. Most burglaries are opportunistic, and sometimes just one unlocked door or open window is enough.
uPVC Casement Windows
A popular design is both attractive and durable. They provide security and energy efficiency. Plus, they come in many styles and finishes to improve your home's look.
Aluminium Casement Windows
Our custom-made aluminum windows work well for both old and new homes. They provide great heat and sound insulation.
uPVC Sliding Sash Windows
Combine the classic beauty of traditional windows with our sliding sash windows. They offer great energy efficiency, security, and sound performance.
Secondary Glazing
Our slimline secondary glazing is a secondary window that fits inside your current window frame. It is designed to be sleek and unobtrusive, so it won't change the look of your home's exterior.
Timber-Look Flush
Residence 9: an actual timber alternative flush uPVC window. Residence 7: flush external & internal windows, giving a modern appearance. Residence 2: an alternative aluminium flush window with a unique square interior.
Smart Windows
Innovative product range goes beyond standard windows and doors, with intelligent technology built in. Our Smart range of high-quality windows and doors gives you real-time alerts.
Finance Options
To help you take advantage of new double glazing now, we have teamed up with one of the UK’s leading financial services companies, so you’re in safe hands.
Appeal ULTRA® Smart Window Blinds
ULTRA® Smart Window Curtains Blinds are market leading, innovative shading solutions offered exclusively by Appeal.
Why you should feel confident in using Glevum Windows:
Out of 640 customers who took our Customer Survey, 92% said they would recommend Glevum Windows to others!
- We have been in business since 1984, bringing years of knowledge and experience to every project.
- We are a trusted FENSA-approved window and door installer based in Gloucestershire.
- We are an approved installer for Get Snug Windows & Doors.
- We are also a Kubu Pro Installer.
- All our windows and doors come with a 10-year INSTALLsure (formerly the GGFi) insurance-backed guarantee.
- If you need planning permission or building regulations, we will take care of it on your behalf.
- Our dedicated Service Department is always here to help you.
- Over 45,000 customers trust the security and quality of our windows and doors.
- Nearly half of our work comes from returning customers and referrals.
- Rated 'Excellent' on Trustpilot.
- We offer a range of Finance Options. Feel free to ask about them during your free home visit.
“Excellent. Turn key solution and Glevum took away my hassle, particularly that the location was not the easiest. Very good communication at all stages.”
M Julian-Jones (Newport)
September 2026
“Professional, timely, friendly and efficient.”
J Hardwick (Stonehouse)
August 2026
“A pleasure, as always. From start to finish, everything ran smoothly.”
G Delaney (Cheltenham)
July 2026
“Really lovely company. Have used in a previous home and would use again.”
S Price (Cheltenham)
June 2026
“Everyone we encountered from the company was very helpful, knowledgeable and friendly.”
G Day (Gloucester)
May 2026
“Really good, great throughout and great finished product.”
H Jenkins (Lydney)
April 2026
“Friendly, helpful staff from sales person to fitter, excellent service all round.”
J Holyhead (Gloucestershire)
March 2026
“Very helpful and reassuring. My window and door were fitted by 2 very nice men and its prefect, we are so pleased, thank you so much.”
K Smith (Gloucestershire)
February 2026
“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 (Gloucestershire)
January 2026
“Excellent. Turn key solution and Glevum took away my hassle, particularly that the location was not the easiest. Very good communication at all stages.”
M Julian-Jones (Newport)
September 2026
“Professional, timely, friendly and efficient.”
J Hardwick (Stonehouse)
August 2026
“A pleasure, as always. From start to finish, everything ran smoothly.”
G Delaney (Cheltenham)
July 2026
“Really lovely company. Have used in a previous home and would use again.”
S Price (Cheltenham)
June 2026
“Everyone we encountered from the company was very helpful, knowledgeable and friendly.”
G Day (Gloucester)
May 2026
“Really good, great throughout and great finished product.”
H Jenkins (Lydney)
April 2026
“Friendly, helpful staff from sales person to fitter, excellent service all round.”
J Holyhead (Gloucestershire)
March 2026
“Very helpful and reassuring. My window and door were fitted by 2 very nice men and its prefect, we are so pleased, thank you so much.”
K Smith (Gloucestershire)
February 2026
“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 (Gloucestershire)
January 2026
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