First UK-based closed loop recycling scheme
Here to help
At Glevum we believe in A Brighter Future for our customers, both in product and environmental sustainability
What is closed-loop recycling?
Closed-loop recycling is the process of using recycled material to manufacture new products in the same category.
We’re working with leading manufacturers to reduce waste, avoid landfills, and recycle your old windows, doors, and glass in closed-loop recycling programmes.
Our primary supplier, Emplas Window Systems, in association with the Epwin Group and Poly-Pure, is at the forefront of the closed-loop recycling process for uPVC window frames.
You can be reassured that when we remove your old windows and doors, we will ensure that every piece of the material collected is evaluated and processed as part of a closed-loop recycling programme.
Every step of the process, from recovering and recycling material to manufacturing new products, takes place in the UK.
The Process in six easy steps:
- Removal: When installing your new replacement windows and/or doors, our fitting team will carefully remove your old windows and/or doors and bring them back to our headquarters in Newnham on Severn.
- Collection: Materials are then collected and transported to specialist UK-based recycling facilities.
- Processing: Advanced techniques are used to separate and refine the uPVC and glass.
- Remanufacture: Recycled uPVC is re-moulded, and glass waste is used in new glass sheets.
- Fabrication: The remoulded uPVC and Glass sheets are used to manufacture new windows and doors.
- Installation: These new windows and doors are installed in a customer's home, thus giving your old windows and doors a new home and us all A Brighter Future!
Why choose Glevum for your replacement windows and doors (or Conservatory) 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.
Replacement Windows
From traditional white windows to windows with coloured frames and timber-look windows, our windows come in a wide range of colours, styles, and designs.
Front & Back Doors
The right front door can create and maintain a great first impression. A pair of French Doors, a set of Sliding Patio Doors, or bifold doors can better connect your home to your garden.
Conservatories
For many homes, space is at a premium, so a tailor-made Conservatory from Glevum will give you more space and act as the perfect link between your home and garden.
Related Blog(s)
- Glevum Smart Windows and Doors: Enhance Home Safety Now
- Benefits of Financing your windows and doors purchase
- 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.
“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
“Very professional service from the quote to the fitting. Very pleased.”
J Ochiltree (Gloucestershire)
January 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 service and workmanship. Highly recommend."
M Tomlin (Gloucestershire)
November 2025
"Glevum were very professional throughout the purchase and installation and I am happy with the finished result. Installation team were courteous, neat and tidy throughout the process."
R Elliott (Gloucestershire)
November 2025
“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
“Very professional service from the quote to the fitting. Very pleased.”
J Ochiltree (Gloucestershire)
January 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 service and workmanship. Highly recommend."
M Tomlin (Gloucestershire)
November 2025
"Glevum were very professional throughout the purchase and installation and I am happy with the finished result. Installation team were courteous, neat and tidy throughout the process."
R Elliott (Gloucestershire)
November 2025