St Austell Bay Windows & Plastics

Conservatories in St Austell & All of Cornwall

Bespoke Conservatories Designed for St Austell Homes

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 & 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 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

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 & 10-Year Guarantee

Every conservatory installation is Certass registered for full building regulation compliance and backed by our 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 - Products Are Manufactured

Step 4 - 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

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St. Austell Bay Business Park, Par Moor Rd, Saint Austell PL25 3RF

Open from 9am to 11pm

Call us @

01726 816906

Send us an email

staustellbayplastics@rocketmail.com