If you are looking to replace your windows and doors for cosmetic purposes or for saving money through heat loss look no further that North Lanarkshire's oldest established double glazing company, Fortress Doors and Windows Ltd. We don't employ salesman and don't use hard sell in any shape or form therefore requesting a quote from us is completely stress free. You only deal with one person (Peter Murray the owner of the company) and a visit to your house usually only takes around 15 - 20 minutes, we just give you advice, take some quick sizes and call you soon after with a cost. All our frames are manufactured under strict British Standard Kite mark BS 7950 and are made from REHAU Profiles, which is well known in the double glazing replacement industry as the very best in strength and quality. Combine these attributes to our competitive prices and you won't have to look any further for a more robust and energy saving product. The majority of our work comes from recomendations.