Our Guarantees

At A1, we know you'll love your new windows and doors, each product is manufactured using the finest quality materials and components and installed by our highly experienced team of installers. We're so proud of our double and triple glazing products that we offer a free, comprehensive 10-year guarantee, giving our customers complete peace of mind.


Because A1 Windows and Doors are proud members of the double glazing industry regulatory body FENSA and are also members of IPWFI you can be confident that our guarantee is supported by these leading organisations and safe in the knowledge that your planned home improvements are in safe hands with A1. A double glazing guarantee helps to give you peace of mind and reassurance that the company you have purchased from will be there in years to come. In the unlikely event that anything might go wrong, you've got the backing of your double glazing guarantee and can be assured that your issue will be rectified.


Our accreditations


Comprehensive Double Glazing Guarantees - designed to give you total peace of mind 

To further compliment our guarantee package we also offer the 'HomePro' Guarantee. We understand that having work done to your home can be stressful and choosing the right company to undertake the work can be even more stressful, that's why we're proud members of Homepro - an organisation that was established to make that decision easier and to make the process of home improvement an enjoyable experience! Homepro has one of the UK's largest directories of home improvement companies, all independently vetted by homeowners who have used their services, and what's more they also offer an independent, insurance-backed guarantee solution.


A1 Windows Taunton Customer Reviews


A HomePro insurance backed guarantee, or IBG for short, covers deposits (where level of cover is Value Plus or TrustMark Value Plus), workmanship and materials. Deposit Protection Cover lasts for 90 days from date of payment to the contractor and the Warranty Insurance Policy is valid for a period of up to 10 years. The period of cover is determined by the category of work and mirrors the contractor’s written guarantee, subject to the terms of the insurance policy. The cover is usually provided for the following types of home improvement jobs. 


Rated 9/10 on independent review site IPWFI Homepro 

If you are looking to upgrade your windows and doors and would like some advice on our range of double glazing products, get in touch today and discuss our guarantees with one of our friendly team.


Just some of our valued customers:

Our Valued Customers



"I would readily recommend your company to anybody considering replacement windows"