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St Austell Bay Windows and St Austell Bay Plastics

Casement Windows in St Austell & All of Cornwall

01726 816906
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    What Are Casement Windows?

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    Casement windows are the most popular window style in the UK — and it's easy to see why. Hinged at the side and opening outward, they offer maximum ventilation, excellent security and a clean, timeless look that suits virtually any property style across St Austell and all of Cornwall. Our uPVC and aluminium casement windows are A-rated as standard, available in a huge range of colours, finishes and configurations — from simple side-hung casements to top-hung and combination units with fixed panes. Every casement window we install is Certass registered and backed by our up to 10-year insurance-backed guarantee.

    Our uPVC casement windows combine A-rated thermal performance with low maintenance, excellent security and outstanding value. Available in white, cream and a wide range of woodgrain and solid colours, they suit period and modern homes across St Austell and all of Cornwall.
    For a slim-profile, high-performance alternative — our aluminium casement windows offer thermally broken frames with ultra-narrow sightlines and maximum glazed area. Available in any RAL colour and ideal for contemporary homes and renovations.
    We supply casement windows in side-hung, top-hung and combination configurations to suit any opening. Whether you need a simple single casement or a complex multi-pane unit with fixed lights, our team will design the right solution for your home.
    Every casement window is supplied with A-rated double glazed units featuring Low-E glass, argon gas filling and warm-edge spacer bars as standard. Triple glazing is available for maximum thermal and acoustic performance.

    Our Colour Options

    Explore our full range of REHAU uPVC window and door colours. Click any swatch to copy its colour reference.

    The Contemporary Collection

    Elephant Grey (Grained)
    Grained

    Elephant Grey

    Renolit 02.11.71.000047 – 116700

    Similar to RAL 7001

    Basalt Grey II (Smooth)
    Smooth

    Basalt Grey II

    Renolit 02.11.71.000039 – 809700

    Similar to RAL 7012

    Slate Grey (Grained)
    Grained

    Slate Grey

    Renolit 02.11.71.000040 – 101100

    Similar to RAL 7015

    Slate Grey (Smooth)
    Smooth

    Slate Grey

    Renolit 02.11.71.000040 – 801300

    Similar to RAL 7015

    Anthracite Grey (Grained)
    Grained

    Anthracite Grey

    Renolit 02.11.71.000041 – 116700

    Similar to RAL 7016

    Anthracite Grey (Smooth)
    Smooth

    Anthracite Grey

    Renolit 02.11.71.000041 – 808300

    Similar to RAL 7016

    Black Brown (Grained)
    Grained

    Black Brown

    Renolit 02.11.81.000101 – 116700

    Similar to RAL 8022

    Midnight Black (Matt)
    Matt

    Midnight Black

    Renolit 02.20.01.000002 – 504700

    Similar to RAL 9005

    Alux DB703
    Metallic

    Alux DB703

    Anodised aluminium finish

    DB703 Dark Grey

    The Timeless Collection

    Simply White (Grained)
    Grained

    Simply White

    Continental F456-5053

    Similar to RAL 9010

    Clotted Cream (Grained)
    Grained

    Clotted Cream

    Continental F456-5054

    Similar to RAL 9001

    Chartwell Green (Grained)
    Grained

    Chartwell Green

    Renolit 02.11.61.000029 – 101100

    Heritage green

    Pearl Grey (Grained)
    Grained

    Pearl Grey

    Renolit 02.20.71.000005 – 116700

    Similar to RAL 7038

    Sage (Grained)
    Grained

    Sage

    REHAU 2517L / Renolit 02.20.61.000003

    Soft sage green

    Pebble Grey (Grained)
    Grained

    Pebble Grey

    REHAU 2907L / Renolit 02.11.71.000056

    Similar to RAL 7032

    The Traditional Collection

    Turner Oak (Grained)
    Grained

    Turner Oak

    Continental F470-3001

    Woodgrain foil

    Irish Oak (Grained)
    Grained

    Irish Oak

    Renolit 9.3211 005 – 114800

    Woodgrain foil

    Golden Oak (Grained)
    Grained

    Golden Oak

    Renolit 9.2178 001 – 116700

    Woodgrain foil

    Walnut (Grained)
    Grained

    Walnut

    Renolit 9.2718 007 – 116700

    Woodgrain foil

    Rosewood (Grained)
    Grained

    Rosewood

    Renolit 9.3202 001 – 116700

    Woodgrain foil

    Dark Oak (Grained)
    Grained

    Dark Oak

    Renolit 9.2052 089 – 116700

    Woodgrain foil

    Mahogany (Grained)
    Grained

    Mahogany

    Renolit 9.2065 021 – 116700

    Woodgrain foil

    The Statement Collection

    Ruby Red (Grained)
    Grained

    Ruby Red

    Renolit 02.11.31.000013 – 116700

    Similar to RAL 3011

    Racing Green (Grained)
    Grained

    Racing Green

    Renolit 02.11.61.000009 – 116700

    Similar to RAL 6009

    Steel Blue (Grained)
    Grained

    Steel Blue

    Renolit 02.11.51.000033 – 116700

    Similar to RAL 5011

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    Frequently Asked Questions

    uPVC casement windows typically start from around £450 per window fully supplied and installed. Prices vary depending on size, glazing specification and colour. Contact us for a free no-obligation quote for your specific property.
    Our uPVC casement windows are available in a wide range of colours including white, cream, Chartwell green, anthracite grey, black, golden oak, rosewood and many more. Aluminium casements are available in any RAL colour.
    Yes — particularly in woodgrain uPVC or slim aluminium finishes. Flush casement windows are often the preferred choice for conservation areas as they replicate the appearance of traditional timber windows. Our team will advise you during your free survey.
    High-quality uPVC casement windows typically last 25 to 35 years with minimal maintenance. Our windows carry a up to 10-year insurance-backed guarantee as standard, and the frames require nothing more than an occasional wipe-down to keep them looking like new.
    Finance Available

    Finance Your New Windows

    Spread the cost of A-rated uPVC, casement, sash and aluminium windows with flexible monthly payments tailored to your budget.

    • Casement, sash & aluminium styles
    • Energy-efficient A-rated glazing
    • 10-year insurance-backed guarantee
    • Quick and easy online application
    Apply for Window Finance
    Finance available on windows and doors
    Why Choose Us

    Why St Austell Homeowners Choose Us

    The UK's Most Popular Window Style
    Casement windows offer the best balance of ventilation, security and affordability of any window style — which is why they remain the most fitted window in the UK and across St Austell.
    Wide Range of Colours & Finishes
    From classic white and cream to woodgrain golden oak, rosewood and contemporary anthracite grey — our casement windows are available in a huge range of finishes to suit any home.
    Side-Hung & Top-Hung Configurations
    We supply casement windows in side-hung, top-hung and combination configurations with fixed lights — so whatever your opening, we can design the right solution for your home.
    Certass Registered & up to 10-year guarantee
    Every casement window installation is Certass registered for full building regulation compliance and backed by our up to 10-year insurance-backed guarantee, fitted by our own in-house team.

    Our Process

    Step 1 - Free Home Survey
    Step 2 - Your Personal Quote
    Step 3 - Final Survey
    Step 4 - Products Are Manufactured
    Step 5 - Professional Installation
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    Areas We Cover

    Covering St Austell & All Surrounding Towns

    Truro
    Bodmin
    Lostwithiel
    Newquay
    Padstow
    Liskeard
    Falmouth
    St Mawes
    Fowey