JWS (Jones Window Systems) are a St Helens UPVC Window Manufacturer and install bespoke home improvements throughout the North of England and further afield. We offer the best Quotes for UPVC Windows, UPVC Doors, UPVC Vertical Sliding Sash, UPVC Conservatories and UPVC Orangeries. All of our products are manufactured by expert craftsman to rigorous British Standards and certified with Kitemarks to ensure that we have confidence when we offer as standard our "Insurance Backed" 10 year Guarantee. We are Fensa registered and as well as our "A Rated" energy efficient windows we also supply our superior Triple Glazed windows for a little more. AFFORDABILITY | ||
PLANITHERM Energy saving Planitherm glass is the most energy efficient available. Its advanced coating technology reflects radiated heat back into your home, instead of letting it escape through your windows. Planitherm also allows the free heat and light from the sun to pass through the glass to the inside your home. Resulting in a Lighter, brighter, warmer and more energy efficient home. ENERGY SAVING (Energy Saving Trust) ~ "Research has shown that many homeowners assume that all double glazing is equally energy efficient. In fact, there are huge differences in performance and it is the glass that makes the difference" | All our windows are installed with Planitherm Glass and Pilkington patterened glass ![]() | |
Planitherm helps to virtually eliminate internal condensation and reduce cold spots in and around windows | ||







