With a large choice of styles, colours and glazing options, you’ll find the ideal product for you, no matter what your specifications or budget. Over the last 50 years, Cliffside Windows has worked hard to establish its reputation as a trusted local double glazing business. We’re Lincolnshire’s longest trading manufacturers and installers of double glazed uPVC products. Through our unique, specialist experience we have identified the products our customers want – high performance, low maintenance, long-lasting and affordable uPVC windows, doors and conservatories. Whether you’re looking for a new front door, a stunning conservatory or a houseful of replacement windows, we can offer you a comprehensive quote which includes our supply, fit and aftercare service. We also supply and install for commercial projects, such as fitting new windows in schools and council buildings, in every sort of building across Lincolnshire.