When windows and doors are fabricated at your location, measurements can be checked and matched in real time, helping reduce the risk of sizing issues that can cause delays. Each unit is produced around the specific opening and project requirements.
This can be particularly useful on complex builds, refurbishments and projects working to tight programmes where standard sizing may not be suitable. Fabricating on site provides greater flexibility when requirements change during the installation process.
We support builders, contractors and developers across Surrey, London and West Sussex with fabrication services designed around individual project requirements. Our experienced team works with your schedule and site conditions to help keep projects moving.
Whether you’re managing a single residential plot or a multi-unit development, our on-site fabrication service can provide greater flexibility around your programme, product requirements and installation schedule.
We fabricate across uPVC, aluminium and timber systems, giving you flexibility to specify the right products for each project. From casement and sash windows to composite doors and aluminium bifolds, our on-site fabrication capability covers a wide product range.
Our team works to the relevant building regulations and performance specifications for each project, helping you achieve the required thermal, acoustic and security performance from installation.
On-site fabrication can reduce the lead-time challenges associated with factory-only supply chains. Our team arrives ready to measure, cut and assemble, helping keep your glazing schedule on track when changes arise on site.
We work cleanly and professionally alongside other trades, respecting your clients, your site and your programme. Our experienced team works efficiently on site while maintaining the quality and finish expected from every project.
Every product we install is made to measure and finished with careful attention to detail. From a single room divider to a full interior glazing scheme, we bring the same care and craftsmanship to every project.
About Us
Find answers to common questions about our on-site window and door fabrication service, including how it works, what we fabricate and where we operate.
Contact UsIt means our team comes to your project location to measure, cut and assemble windows or doors on site, allowing products to be fabricated to suit the exact opening rather than relying solely on pre-factory sizing.
We work across uPVC, aluminium and timber systems including casement windows, sash windows, composite doors, bifold doors and patio doors, covering both residential and commercial specifications.
Yes. Our team is experienced working on multi-unit residential developments, commercial refurbishments and new-build projects, adapting to programme requirements and coordinating with other trades on site.
Lead times vary depending on project size and material specification. We recommend getting in touch as early as possible in your programme so we can allocate the right team and resources for your job.
Yes. Genesis Glass provides on-site fabrication services across Surrey, London and West Sussex. Contact our team to discuss your project requirements and the service available for your location.
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