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Business Details
36 Years
experience
Premium Double Glazing & Home Improvement Solutions in Sussex
Established in 1990, Keymer Double Glazing has built a reputation as a trusted provider of high-quality uPVC, Composite, and Aluminium double glazing solutions across Mid-Sussex. Our expertise spans windows, doors, conservatories, and roofline products, with a dedicated team committed to delivering installations that combine durability, energy efficiency, and aesthetic appeal. With over three decades of industry experience, we prioritise customer satisfaction, treating every home as if it were our own while minimising disruption during installations. Our commitment to sustainability is evident in our recycling of 80-85% of replaced materials, aligning environmental responsibility with modern home improvement needs. The Burgess Hill showroom offers a hands-on experience, allowing customers to explore our full product range in a welcoming environment, supported by knowledgeable advisors.

Recognised by Which? Trusted Trader and Checkatrade with a 9.7 rating from over 500 reviews, we combine technical proficiency with transparent communication to ensure informed decision-making. From initial consultation to final installation, our process is designed to be seamless, with free, no-obligation quotes tailored to individual requirements. As a family-run business, we maintain a personal approach, ensuring every client receives bespoke solutions backed by industry-leading standards. Our on-site manufacturing facility and integrated trade counter streamline operations, enabling efficient service delivery for both residential and trade clients. This enduring focus on quality, innovation, and customer care has solidified our position as a leading double glazing specialist in the region.
Services
Double Glazing Doors Conservatories Roofline Products Bi-fold Doors Windows Roof Lanterns Garden Rooms Maintenance Orangeries
Details
  • Year established: 1990
Highlights and features
  • We have over 30 years of experience in double glazing installations.
  • Our Burgess Hill showroom showcases the full product range in person.
  • We recycle 80-85% of replaced materials for environmental sustainability.
  • We offer free, no-obligation quotes with expert advisor support.
  • Proud members of Which? Trusted Trader with a 9.7 Checkatrade rating.
Associations and certifications
  • Which? Trusted Trader
  • Checkatrade
What people say
Excellent customer service High-quality installations Eco-friendly practices Knowledgeable advisors Prompt response
Services
Double Glazing
Our double glazing solutions enhance energy efficiency, reduce noise, and improve security. Using uPVC, Composite, and Aluminium materials, we provide tailored installations for windows and doors. Each project adheres to industry standards, ensuring long-term performance and thermal insulation.
Conservatories
Custom-built conservatories transform living spaces with light-filled designs. We offer dwarf walls, tiled roofs, and modern glazing options, combining functionality with aesthetic appeal. Installations are completed by skilled fitters to meet individual lifestyle needs.
Roofline Products
Durable roofline systems include fascias, soffits, and guttering in low-maintenance uPVC. Designed to protect properties from weather damage, these products enhance exterior aesthetics while ensuring structural longevity through precise fitting.
Bi-fold Doors
Contemporary bi-fold doors create seamless indoor-outdoor transitions. Available in Aluminium or uPVC, they feature slim frames and secure locking mechanisms. Ideal for modernising homes while maximising natural light entry.
Maintenance
We offer comprehensive maintenance for existing installations, including seal replacements, hinge adjustments, and lock upgrades. Our proactive approach extends product lifespan while maintaining optimal functionality and security standards.
Questions
What products does Keymer Double Glazing offer?
We supply and install uPVC, Composite, and Aluminium double glazing, doors, conservatories, bi-fold doors, roofline products, and roof lanterns.
Do you provide free quotes?
Yes, we offer free, no-obligation quotes with expert advice from our Burgess Hill showroom or via phone.
Are your products environmentally friendly?
We recycle 80-85% of replaced materials and use energy-efficient glazing to reduce carbon footprints.
What are your showroom hours?
Our Burgess Hill showroom is open Monday-Friday 9:00-17:00 and Saturday 8:00-12:00.
Do you offer maintenance services?
Yes, we provide repair and servicing options for existing installations to ensure long-term performance.
Reviews (3)
Russell Bickle
Dec 01, 2021 Report
The initial ordering of the door was good but it did take longer than quoted to arrive and I had to keep chasing. Once fitted the door did not close properly, once it was looked at again the manufacturer was called. It took 4 months from this visit until our door was actually finished.
Carolyn Tibbs
Nov 24, 2021 Report
Very poor customer service. I had an engineer come to see the faulty fitting of my bi-fold doors in June and the problem with my double glazing which are still under guarantee. Since then despite leaving countless messages, being reassured that someone would contact me to update me I have not had one phonecall or update. We are now nearly in November! If I could leave zero stars I would
Marksbizgroup
Jan 03, 2019 Report
Best double glazing firm in the area. Competitive prices and professional installations. Don't try anywhere else! Conservatory installer Mark is the best xxx