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St Austell Bay Windows and St Austell Bay Plastics

Conservatories in St Austell & All of Cornwall

01726 816906
Design Your Conservatory

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    Bespoke Conservatories Designed for St Austell Homes

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    A conservatory is one of the most popular ways to extend your living space without the cost and disruption of a full extension. St Austell Bay Windows and St Austell Bay Plastics designs and builds bespoke uPVC conservatories across St Austell and all of Cornwall — from classic Victorian and Edwardian styles to contemporary lean-to and gable-end designs. Every conservatory is built to complement your home's existing architecture while creating a bright, versatile new room you'll use all year round. Our conservatories are fully insulated, double glazed and built using high-quality uPVC profiles for excellent thermal performance and minimal maintenance. Every installation is carried out by our own in-house team — no sub-contractors — and backed by our up to 10-year insurance-backed guarantee. If you'd like to upgrade an existing conservatory rather than build a new one, our SupaLite warm roof replacement can transform it into a comfortable, usable room in any season.

    The timeless classic — a multi-faceted bay front with an elegant curved or ornate roofline. Victorian conservatories suit period and traditional Cornish properties beautifully, adding a striking and characterful extension to your home.
    Clean square or rectangular lines maximise usable floor space, making the Edwardian style one of the most practical and popular conservatory shapes. A versatile choice that suits a wide range of property styles across St Austell and all of Cornwall.
    A simple, sleek design with a single-pitch roof — ideal for properties with limited height under windows or eaves, or for a more understated, contemporary look. A cost-effective and space-efficient option.
    For larger spaces, a P-shaped conservatory combines a Victorian bay with a lean-to section for maximum versatility, while a gable-end design creates a full-height front elevation with a dramatic, vaulted roofline — a striking statement extension.

    Frequently Asked Questions

    Most conservatories fall within permitted development rights and do not require planning permission, provided they meet certain size and placement criteria. If your property is listed or in a conservation area, additional restrictions may apply. Our team will advise you fully during your free home survey.
    A standard conservatory installation typically takes three to five days depending on the size and style chosen. More complex builds or those requiring groundwork may take longer. We will give you a clear timeline during your free survey.
    A standard conservatory with a glazed roof can get too hot in summer and too cold in winter. Adding a SupaLite tiled warm roof — either at the time of build or as a later upgrade — fully insulates the room and makes it usable in complete comfort all year round.
    Conservatory prices vary significantly depending on size, style and specification. A standard lean-to conservatory starts from around £8,000 fully fitted. Contact us for a free no-obligation quote tailored to your home and requirements.
    Finance Available

    Finance Your Conservatory

    New conservatories and warm roof replacements — make your dream extension affordable with flexible finance options.

    • New builds & warm roof upgrades
    • Fully insulated, built to last
    • Free home survey & quote
    • Family-run Cornwall installers
    Apply for Conservatory Finance
    Finance available on conservatories
    Why Choose Us

    Why St Austell Homeowners Choose Us

    Bespoke Design for Your Home
    Every conservatory we build is designed around your property — not a one-size-fits-all template. Our team will advise on the style, size and orientation that works best for your home and garden during your free survey.
    Fully Insulated uPVC Construction
    Our conservatories use high-quality, fully insulated uPVC profiles with A-rated double glazing — keeping your new room warmer, quieter and more energy efficient than older conservatory designs.
    Upgrade with a SupaLite Warm Roof
    Want year-round comfort from day one? Add a SupaLite tiled warm roof to your new conservatory build for a fully insulated room that performs more like an extension than a traditional conservatory.
    Certass Registered & up to 10-year guarantee
    Every conservatory 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
    Request a Quote

    Areas We Cover

    Covering St Austell & All Surrounding Towns

    Truro
    Bodmin
    Lostwithiel
    Newquay
    Padstow
    Liskeard
    Falmouth
    St Mawes
    Fowey