GTG Double Glazing is a FENSA-certified, family-run business specializing in high-performance windows, doors, and glazing solutions across United Kingdom. Registered at Balfour Business Centre, Ilford, we combine British craftsmanship with energy-efficient technology to transform homes. We’re committed to transparent service, backed by a 10-year guarantee and compliance with all UK building regulations.
From energy-saving windows to stunning conservatories – explore upgrades designed for Essex homes.
At GTG Double Glazing, we don’t just meet expectations – we exceed them. From your first quote to the final clean-up, our FENSA-certified team combines precision craftsmanship with old-fashioned reliability. No blind texts, no empty promises – just quality you can see and feel.
Bespoke Solutions – Windows and doors tailored to your home
Stress-Free Process – On-time installations with zero hidden costs
Decades of Trust – Backed by 10-year guarantees
Complimentary design, consultation and quick, FREE, no-obligation quote.
Precise measurements and planning ensures perfection everytime.
Ensure you make the very best right decision for you.
Your new windows and doors will be expertly crafted in Britain.
Professional insallation within 3 weeks, leaving your home clean and tidy.
Explore our gallery of premium door installations across Essex – from sleek composite front doors to seamless bi-folds, all crafted with precision and backed by 10-year guarantees.
View Door Projects
Browse our gallery of premium window installations across UK – from elegant casements to modern sliding sash, all engineered for energy savings and backed by 10-year guarantees.
View Window Projects
Discover our expert roofline installations across UK – durable uPVC fascias, soffits, and guttering designed to protect and enhance your home for decades.
See Rooftrim Projects
Explore our gallery of bespoke conservatory installations across UK – from elegant Victorian designs to modern lean-tos, all crafted with thermal-efficient glass for comfort in every season.
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At GTG Group, we are dedicated to transforming homes with our expert craftsmanship and high-quality products. Specializing in doors, windows, garage doors, rooftrim, and conservatories, we provide solutions that enhance security, energy efficiency, and curb appeal.