uPVC Flush Casement Windows

Double glazed uPVC flush casement windows are certified and rated A as standard for energy efficiency. For even better energy performance, they can be upgraded to A++ with triple glazing. This makes them some of the most energy-efficient windows you can get.

Upgrading from pre-2002 uPVC double glazing to A rated windows from Anglian could save you £184.25 off your annual energy bills*. That’s more than £1800 over 10 years.

Flush uPVC windows have some of the best measurements for heat retention and excluding draughts. Losing less heat through your windows means you won't need to use your heating as much, which can lead to lower energy use and lower bills.

Our uPVC flush windows are a solid choice to increase home security and have a range of features to help protect your home from unwanted visitors.

• Multi-point locking mechanisms secure the flush window to the frame at the top, bottom and sides. This makes it very difficult for an intruder to force the door open.
• Lockable handles come as standard, so the window can’t be opened from the outside.
• uPVC flush casement windows are Secured by Design accredited, a Police initiative to ‘design-out’ crime. All hinges are fixed to the frame with steel claws to protect that side of the window during an attempted break-in.
• Glass is fitted from the inside of the frame when we make the window. Internal glazing means it is harder to remove glass from the outside.
• The uPVC in our flush windows has a strong multi-chambered construction with welded joints for added strength.
• Where required by building regulations, laminated shatter-resistant safety glass is fitted to provide extra protection against break-ins.

Your flush uPVC casement windows have a guarantee which covers the frames, glass, hardware and labour. Under the terms of a guarantee the cost of a partial or complete repair of your windows is covered. They’re also insurance-backed, so if we stopped trading during the life of a guarantee, it would still be valid.

• 10-year guarantee on frames, parts and labour.
• 15-year guarantee on all our sealed glass units. It is also covered if the unit “blows out”, meaning the airtight seal “blows” allowing condensation to form between the panes of glass.
• 10-year guarantee on hardware, including locks, handles and hinges.

Accreditations

• Secured by Design approved: this Police accreditation means our flush uPVC casement windows help keep buildings more secure from crime.
• The PLC Scheme from ER Certification Ltd. was established to assist window and door manufacturers in demonstrating compliance with Building Regulations. Our double-glazed uPVC flush casement windows are rated A and A++ with triple glazing.
• FENSA and Glass and Glazing Federation (GGF) accredited, which ensures our flush uPVC casement windows are installed to the latest building regulations.

Flush uPVC casement windows come in a large range of configurations to suit different size rooms. Because no home is the same, we don’t believe in a one-size-fits-all approach. So your windows are made to measure for your home and each one is priced individually.

Min height 385mm

Min width 385mm

Max height overall frame 3000mm

Max width overall frame 3000mm

Start your project today and enjoy it for longer. Spread the cost of your new flush casement windows with a low deposit of just £249 (11.9% APR) subject to affordability, status and lending criteria.

Buy uPVC Flush Casement Windows from as little as £92.95 per month spread over 96 months:

Interest is charged from the date the account is opened. Current rate as of August 2025.

Anglian Home Improvements is a trading name of the ASHI Group Limited and is a credit broker, not a lender. Registered office: Liberator Road, Norwich, NR6 6EU. Registered in England No. 2540020. Authorised and regulated by the Financial Conduct Authority for consumer credit activities.