Conservatories North London
GIS Windows we are rightly proud to be double glazing suppliers and manufacturers. With 34 years of experience, we have strived to supply the highest quality double-glazed windows, doors and conservatories with the best customer service. Our team has built up an enviable reputation for honest, factual and friendly service, which extends far beyond the sales room Unlike many double glazing suppliers and manufacturers all of our products are produced in the groups own factory ensuring total control of the process.

G.I.S Home Improvements Ltd manufacture and install a wide range of windows, doors, conservatories and roof trim products. We have been in business for 34 years and have a large factory in Luton which caters for both the commercial sector and home owners. We also have a showroom in Enfield.ntpl0040
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