New sashes are measured and made as exact replicas of the original sashes, or as a suitable window of your choice, using traditional mortice and tenon joints, and matching the inside moulding detail.

Using the latest technology and highest standard of materials, including toughened double glazed glass, that uses the very latest advancements in thermally insulating glass coating technology on the inside of the sashes, to reflect heat back into your home, thus saving you money on your energy bills, and reducing your carbon footprint. The actual timber frames of the sashes are made of Accoya®, an environmentally friendly alternative to hardwoods that has been thoroughly tested for dimensional stability, durability and paint retention to ensure optimal performance. Indeed, it is so reliable that for many years it has been – and continues to be – used by scientists as the benchmark against which other treatments and modifications are measured.

All Accoya timber is guaranteed to last 50 years unpainted above ground. It has Class 1 durability, surpassing even Teak. Virtually rot proof, with a 70 year minimum service life stated by TRADA. All new sashes are expertly spray painted with a nontoxic, extremely durable micro-porous paint, leaving a beautiful finish.

The majority of the time, the original boxes are in good enough condition to be refurbished. This involves removing the old paint, carrying out any repairs on the old timber and then redecorating with high-quality acrylic primer, undercoats and finally a durable satin top coat that matches the new double glazed sashes. The pulleys are also replaced with new brass or chrome pulleys, these not only provide better function but improve the appearance of the finished window. The new sashes are installed into the refurbished boxes, with extra lead weights added to balance the new, heavier sashes. new cords are used, as well as new beading with integrated draught proofing brush pile. Any gaps and pin holes are caulked and filled and all of the box and beading are finish painted to give a seamless, high-quality finish. New fasteners and security locks can now be added to improve the security of your home. All of our double glazed units come with a 10-year guarantee as standard.