UPVC FLUSH SASH WINDOW APPEARANCE

uPVC Flush Sash Windows for Trade

Profile 22’s Optima flush casement window offers a classic timber-look appearance with all the practical benefits of uPVC. Built for performance and easy installation, this system replicates timber visuals while meeting modern energy, security, and efficiency demands.

  • Traditional flush sash styling with an authentic look
  • PAS 24 certified proves strong security
  • Ideal for heritage properties and conservation areas

A Classic Look with Modern Performance

The Optima flush sash system is designed to allow installers to confidently take on conservation and heritage projects. It combines long-lasting uPVC performance with careful aesthetic detailing, including deep bottom rails, optional mechanical joints, and a full palette of woodgrain finishes.

If you’re working on a listed/heritage/conservation property and need to match original timber frames, this flush system helps meet planning requirements without compromising on quality, thermal performance, or ease of installation.

Specifications

  • Achieves U-values as low as 1.8 W/m²K and a WER of A+
  • Available as top hung or side hung with multi-pane configurations
  • PAS 24 certified and multi-point locks
  • Optional second and third weather seals for added performance
  • 85mm to 225mm cill sizes to suit different properties
  • Couplers (3–29mm) and packers (15mm–50mm) available in different sizes
Wide Product Range
Friendly Experienced Team
Outstanding Quality
Manufacturing Expertise

Built for Heritage Projects and Conservation Areas

Flush casement windows are often the go-to choice for heritage and conservation-led projects, and the Optima system has been designed with that in mind. The flush sash design replicates traditional timber windows closely, with mechanical joints, equal sightlines, deep bottom rails, and optional Georgian bars to match original detailing.

With a 6-chambered frame and the option to use standard packers to account for older openings, this system makes replacing timber simpler while keeping the right proportions. It’s also been approved for use in many conservation areas and meets modern building regulations for energy efficiency and security, bridging the gap between traditional looks and today’s performance standards.

Contact Us
Flush Sash windows
Upvc flush sash windows

Styles, Sashes, and Configurations

Profile 22 flush casement windows are available in a wide range of layouts to suit your project. Choose between top-hung and side-hung sashes depending on ventilation, access, or cleaning needs. Both opening styles provide excellent functionality, clean visuals, and a smooth operation.

Larger multi-pane options are also available, from single-pane minimalist designs to traditional three- or four-pane layouts. All styles are available in a full suite of finishes, including timber-effect woodgrains and modern colours. Frames are also available in bevelled or ovolo styles.

Contact Us
  • Colours
  • Glazing
  • Colours

    White

    White

    Textured Anthracite Grey

    Textured Anthracite Grey

    Off White

    Off White

    Grey

    Grey

    Gloss White

    Gloss White

    Dark Red

    Dark Red

    Dark Grey

    Dark Grey

    Dark Green

    Dark Green

    Dark Blue

    Dark Blue

    Dark Brown

    Dark Brown

    Cream

    Cream

    Brown

    Brown

    Black

    Black

    Anthracite Grey

    Anthracite Grey

    Glazing

    Oak

    Oak

    Minster

    Minster

    Chantilly

    Chantilly

    Cassini

    Cassini

    Charcoal Sticks

    Charcoal Sticks

    Warwick

    Warwick

    Tribal

    Tribal

    Taffeta

    Taffeta

    Reeded

    Reeded

    Pelerine

    Pelerine

    Mayflower

    Mayflower

    Florielle

    Florielle

    Everglade

    Everglade

    Digital

    Digital

    Contora

    Contora

    How to Order from Trade Windows Bristol

    1. Browse

    Explore our full range of aluminium and uPVC products, with brochures and technical specifications available to help you find the right products for your business and current project.

    2. Quote

    Contact us to discuss your needs, and our team will provide a fast, competitive trade quote with clear lead times.

    3. Deliver

    We’ll manufacture your order in our Bristol facility and deliver it directly to you, ready for installation.

    FAQs

    Here are some of the most common questions we receive about our Spectus flush casement windows.

    What makes these windows suitable for conservation areas?

    Their flush sash design and authentic detailing replicate traditional timber windows, helping meet planning requirements.

    What sizes and accessories are available?

    Cills from 85mm–225mm, couplers from 3–29mm, and packers in 15mm–50mm sizes are available.

    Can these be installed into older, uneven openings?

    Yes, standard Optima outer frames and packers can be used to deal with variations in older properties, making installations quicker and easier.

    What sash styles are available?

    Both top-hung and side-hung options are available, with multiple sash sizes and configurations.

    Are these windows secure?

    Yes, they are PAS 24 certified and built with robust, secure hardware options.

    Customer Reviews

    Excellent customer service from start to finish. PVC windows and doors all of an excellent standard. Completed on time and would highly recommend to anybody.

    Read more

    Barry Pearce

    Via Facebook

    Facebook

    Good value for money.

    Read more

    Darren Stanley

    Via Google

    Google

    Very competitive prices and helpful staff.

    Read more

    Daniel Doherty

    Via Google

    Google

    Gr8 happy warm welcoming staff, Always willing to help, Nothing is never a problem.

    Read more

    Denziel Brown

    Via Google

    Google

    Really good company. They really know their stuff. Upvc or aluminium and composite doors I've bought off of them.

    Read more

    Verified Customer

    Via Google

    Google

    Very professional, clear concise quotations. Good prices and lead times. Highly recommend.

    Read more

    Nick Bailey

    Via Google

    Google

    Get in Touch for a Quote Today






      By submitting your details you confirm that you agree to the storing and processing of your personal data by New Trade Windows as described in the privacy statement.



      CE BFRC ERC Smart Aluminium Spectus Residence Collection Optima Patio Master

      Call us today

      Our team of technical advisors will be happy to help.

      0117 978 4444

      Send an email

      Get in touch today to discuss your needs.