S & K Windows | Standard Way Industrial Estate | 9 Barkers Court | Northallerton | DL6 2BF

We are an installer of quality Windows, Doors, Conservatories and Roofline products to the North Yorkshire, Durham, and Cleveland areas. A successful, friendly, family run business specialising in high-quality installations with hundreds of satisfied customers.

We pride ourselves on excellent customer service; all quotations are free of charge and are carried out by Stephen Darby the owner. With over 35 experience in the industry, you can be assured of excellent service with friendly advice. No Deposit, payment only on completion and satisfaction. S & K Windows has built an outstanding reputation for the installation of great quality windows and conservatories in a manner that has left their customers, literally, wanting more.

S & K windows have a reputation earned over the last 16 years for a thoroughly professional approach and pride themselves on the friendly and knowledgeable guidance they are able to offer. The service is complete, from helping you plan and choose the style of windows that most compliment your property to obtaining planning permission if required. S & K Windows offer the most energy efficient windows from A rated windows to triple glazing. The choice is yours.



Our glazing supplier operates from a 26,000 ft. sq factory at York. It’s modern factory is filled with the latest automated equipment to ensure it can meet the demands of it’s customers requirements now and meet the future requirements of Document “L”. Twinseal has teamed up with the major suppliers in the industry such as Pilkington, Saint-Gobain, Guardian and Edgetech (Super Spacer) to enable it to offer the very best that today’s modern customer is demanding such as “Softcoat IG Units”, “In House Toughened Glass” and “Super Spacer High Performance Warm Edge IG Units”