Our Accreditations


Liniar are one of the UK’s leading uPVC fabricators offering the revolutionary 6-chambered profile. They are recognised as the most technically advanced and most innovative company in the double glazing industry. We only want to provide our customers with the very best, which is why we chose Liniar’s multi-chambered profile compared to the standard 3-chambered profile that is nowhere near as thermally efficient, sound proof or secure.


FENSA ensures all our customers are confident with their new double glazing. They are a government authorised Competent Persons Scheme for the replacement of windows and doors throughout England. You will receive first rate protection on your double glazing installation and offer our customers an insurance backed guarantee and deposit protection for your peace of mind.


Being part of the Double Glazing Network means all our installations are complete with Yale’s high security locking systems for complete protection against any unwanted intruders. They also offer an aftercare package so you can be rest assured for many years even after your completed installation. Follow the simple online guarantee process to receive Yale’s comprehensive 10 year £1000 security guarantee.

Double Glazing Network

Spire Glass are proud members of the Double Glazing Network providing the very best Liniar window systems for our valued customers in Wiltshire. Offering maximum security locking systems for Yale you know you’re receiving the very best money can buy. Always ensuring high levels of workmanship and customer service, we follow the guidelines of the Double Glazing Network dealership charter for exceptional double glazing companies.