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Made In Britain

You'll find the 'Made in Britain' marque on all our windows. This means they're made from start to finish in a British craftspeople so you can expect the highest standards of design and manufacture.

Make Energy Savings

At GSM Windows we have been providing superb quality products for years and they all meet exact standards for energy efficiency and durability, as well as ease of installation, operation and maintenance.

Feel Safe Inside Your Home

Every product carries our commitment to quality & durability. We control every aspect of the job ourselves from zero to manufacturing to final fitting, which will ensure your total peace of mind and make you feel safe inside your home.

Welcome to GSM Windows

At GSM Windows we have been providing superb quality in Double Glazing Windows, Doors and Conservatories for years and have gained an enviable reputation for quality, value for money and industry leading workmanship. Whether you need windows and doors for a new construction project or you are simply thinking about replacement windows for your home, we have the product to suit your needs. Every product from GSM Windows carries our commitment to quality design, timeless beauty and skilled craftsmanship. Our windows and doors meet exact standards for energy efficiency and durability, as well as ease of installation, operation and maintenance.

FAMILY RUN QUALITY DRIVEN!

Since 1993, GSM Windows has been one of the South Wests leading suppliers of windows, doors, porches, conservatories, double glazing and roofline products, made with the latest REHAU profiles.

  • Since 1993,we manufacture our own frames.
  • We are a family run company.
  • We are fully backed by 10 year experience.

From the moment you invite one of our consultants into your home, you will notice our friendly, honest and no-pressure approach. We want to do business with you for many years to come, so we concentrate all our efforts into building a relationship based on trust and understanding. We control every aspect of the job ourselves from initial consultation through to manufacture and fitting, with all our work backed by a full written 10 year guarantee which can be insurance backed for total peace of mind. Whether you are considering using us for the first time or coming back for further improvements to your home, we are confident you will be delighted at the range of our products, impressed by our quality, reassured by our level of customer care and pleasantly surprised at our prices.

OUR PROMISE TO YOU

Quality installations demand quality products. For our wide range of windows, doors, conservatories and Double Glazing, we only use the best materials, such as the very latest PVC-U profiles from REHAU, Europe’s leading profile manufacturer with over 40 years experience. REHAU systems are approved by the BBA and tested in accordance with BS6375 Part 1. REHAU also holds a BS7413 Kitemark licence, which incorporates BS5750 Part 2. All GSM Windows’ double glazing products are manufactured within BS5713 hermetically sealed flat double glazing units and are quality assessed against BS EN ISO 9002.