D. Johnstone & Sons | Home Improvements Glasgow We are specialists in all forms of residential refurbishment and home improvements work in Scotland. We have over 30 years experience in the plumbing, heating and home improvements industry.Established for over 30 years, we are a family run business, based in Glasgow, specialising in every aspect of home improvement i.e. Conservatories, Double Glazing, Loft Conversions, Fitted Kitchens, Bathrooms, Refurbishment and Renovations - the list is endless.D Johnstone & Sons are specialists in home extensions, garage or loft conversions | Kirkintilloch | GlasgowDon't move - Improve! No matter what size of house extension your after we can handle your project. House Extensions are a popular way of adding further bedrooms to your house, or creating extra space for a home. D Johnstone & Sons are specialists in single storey or double storey conversions, a garage or loft conversion or home enhancing Conservatory. D Johnstone & Sons will advise you to the design and build of your ideal extension to your house. All home extensions are built to our customers specifications, and are custom designed to fit the dimensions of your site. We always follow your architectural drawings which meet local planning permission and building regulations. We take particular care to make sure that the foundations of your extension meets or exceeds the required depth, in order to prevent any future problems from subsidence. We're finding in todays current housing climate that home owners are getting a house extension to either add value to their property to sell on for greater profit or to create extra comfort for their own and their family's enjoyment. At D Johnstone & Sons we work to a highly professional standard of craftsmanship using the finest materials, but at affordable prices. Our friendly team are on hand to offer advice and to make sure that every aspect of your project meets with your requirements.