SGK are proud of the work we do and the majority of our work comes from referrals, recommendation and from our many satisfied customers.

From a window to a complete bifolding door, please take advantage of our gift vouchers and referral scheme.
We like to reward our loyal customers by offering them an incentive to spread the word about our great work.
We offer a range of vouchers for anyone interested in:
- Windows
- Roofline Products
- Entrance or Composite Doors
- Bifolding Doors
- Canopies and Porches.
Simply contact us for your unique code and you can use your vouchers either for money off your purchase or we will reward you with a gift voucher should you refer somebody to us.
Please click on any of the vouchers below.