Sash Windows

ECOSlide PVC-U vertical sliding sash windows supplied with A+ Rated Window Energy Rating as standard

Window Energy Rating

ECOSlide windows have been subjected to Window Energy Rating simulation calculations by an approved British Fenestration Ratings Council (BFRC) simulator.

Thermal Inserts manufactured from 100% recycled PVC-U are inserted in the factory to enhance the thermal performance of the windows. These multi-chambered extruded inserts are much more thermally efficient than traditional steel bars, whilst also being lighter and providing better fixing screw retention during window installation.

Rigorously tested sash windows

Independently tested at a UKAS test house the ECOSlide window has been evaluated in accordance with BS.6375 Part 1 “Performance of Windows: The figures achieved indicate that the tested Weather Performance Rating for the ECOSlide vertical sliding uPVC sash windows will meet “Severe” weather conditions.

Trickle Vents

Architects, housebuilders and the government are paying increasing attention to ventilation – which is vital to reducing the likelihood of mould and condensation.

To comply with the requirements of Part F of Building Regulations, which governs ventilation, ECOSlide comes with the maximum number of trickle vents as standard.

If implemented poorly, trickle vents can ruin the appearance of a window. However, thanks to an ingenious design, ECOSlide’s trickle vents are concealed, allowing the product to achieve Part F standards without spoiling its heritage aesthetics.

What do our customers say?

"I recently had all the windows in my home replaced by Dawn Glazing, and I couldn’t be happier with the results. The team was professional, efficient, and paid great attention to detail. My home looks fantastic, and I’ve noticed a significant reduction in my energy bills. Highly recommend!"

"From start to finish, Dawn Glazing provided exceptional service. They helped me choose the perfect front door for my home, and the installation was flawless. The door is not only beautiful but also adds an extra layer of security. I’ll definitely be using their services again in the future."

"We had a glazed roof installed in our conservatory, and it has completely transformed the space. It’s bright, airy, and perfect for year-round use. The team at Dawn Glazing was fantastic to work with – they listened to our needs and delivered beyond our expectations."

"I’ve worked with several glazing companies over the years, but Dawn Glazing stands out for their professionalism and reliability. Their products are top-quality, and their customer service is excellent. They kept me informed throughout the process and delivered on time. I couldn’t ask for more."

"Dawn Glazing replaced all our patio doors, and the difference is incredible. The new doors are stylish, secure, and easy to operate. The installation team was courteous and cleaned up thoroughly after the job was done. I highly recommend them to anyone in need of glazing services."

Nationwide Distribution throughout the UK & Ireland

We have 6 depots spread across the UK and Ireland, meaning we can offer a reliable delivery service to tradespeople nationwide. In addition to our West Wales HQ, we have depots in Weston-super-Mare, Essex, Warrington, Scotland and Ireland.