Contact us for a free no obligation quote. Please remember that we offer a truly unique service with no sales people and no inflated prices with huge discounts. We will never bother you with phone calls or send you junk mail. You will always deal directly with Lindsey Windows from start to finish. We have built our business on the return of satisfied customers and their recommendation to family and friends. Lindsey Windows is a FENSA registered company. In the world of double glazing, a good measure of credibility and quality is if a company is FENSA registered. Standing for the Fenestration Self Assessment Scheme and set up by the glass and glazing federation (GGF). For the customer, the FENSA scheme will provide a certificate confirming that their windows comply with the new regulations. The regulations are in regards to the thermal performance, safety in relation to impact, structure, means of escape in case of fire, ventilation and access for the disabled.