Enjoy better design with our brand new fully integrated, 70mm depth Optima Chamfered system. Not only is it easy to install, but it offers incredible thermal performance. The slim, chamfered shape is clean, contemporary and attractive, making it suitable for a wide range of projects.

Better insulated

With more chambers, Optima offers excellent thermal performance. The 6-chambered outer frame and 5-chambered sash can also be used with RCM thermal inserts to increase the number of insulating chambers, delivering optimal thermal performance and structural rigidity.

Better protection

Our revolutionary additional centre seals to the outer frame and sash give outstanding insulation and weather protection. This unique feature ensures you get the very best performance from our window systems for the future.

Lowest U-values

Double glazed units made from Optima systems achieve a 1.2 U-value, which guarantees that you meet building standards. U-values as low as 0.8 W/m2K can be achieved when using a triple-glazed unit filled with Argon gas. This means you can compete in the market, with 1.2 W/m2K being easily achievable.

Higher energy ratings

When combined with soft coat glass, low iron, warm edge spacer bar and Argon gas fill, an Optima double glazed unit achieves an A+ rating. With triple-glazing, the possibilities are endless. When used with Argon gas, achieving A++ is simple.

10mm cover for improved weather protection

Our window sashes now benefit from a 10mm cover that not only offers exceptional weathering protection, but also achieves an improved Window Energy Rating due to the increased size of the glass area. This is a cost effective solution to reducing draughts and achieving thermal standards.

Superior security and strength

Optima window systems combine a host of features to maximise security and strength. A central Eurogroove gives our sashes greater rigidity. We have also implemented strategic local wall thickening for 35% better screw and hardware retention. Our secure bead system passes security tests without glazing clips and is ready for proposed enhancements to PAS24.

Our services

Family owned and operated, we perform all levels of building and remodelling. We offer start-to-finish solutions for every project. We also offer full design services from porches to conservatory's choose Ainsworth windows and you wont be disappointed.

We guarantee high-quality construction for each and every project. Check out samples of our recent work, and you'll agree that we're the best choice for your home renovation project.

The glass units we use are from PLANITHERM , it is Europe's leading energy saving window glass and is the most efficient glass available. It uses advanced coating technology to reflect radiated heat back into the room, rather than allowing it to escape through the windows. At the same time, PLANITHERM captures warmth from natural daylight by allowing it to pass through the glass.

The result? – A more comfortable, lighter, brighter, warmer and more energy efficient home that s...aves you money on costly energy bills. Thanks to PLANITHERM advanced thermal insulation which is 3 times more efficient than single glazed windows and at least 25% more efficient than most double glazed windows.

Eliminate Condensation
PLANITHERM helps to virtually eliminate internal condensation and reduce draughts and cold spots in and around windows.