The Window Doctor has years of experience in Double Glazing Repair & Replacement. For all your double glazing needs in Huntingdon contact The Window Doctor. Whether it's a new conservatory or a full house of replacement windows & doors we can assist. The Window Doctor’s expertise in the design and construction of new conservatories and orangeries is outstanding This popular way to create more space and enjoy a relaxing, light area attached to the home will make you wonder why you did not have one installed before.