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St Austell Bay Windows and St Austell Bay Plastics

Windows, Doors & Conservatories in Mevagissey, Cornwall

01726 816906
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    Window & Door Installers for Mevagissey & the Surrounding Coast

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    Your windows and doors make a big difference to how a property looks, feels and performs – particularly in a coastal village such as Mevagissey. St Austell Bay Plastics supplies and installs made-to-measure windows, doors and home improvements for properties throughout Mevagissey and the surrounding South Cornwall coast. From the traditional streets surrounding Mevagissey Harbour to homes towards Portmellon, Pentewan, Gorran Haven, Gorran Churchtown and St Ewe, properties in this part of Cornwall come in a huge variety of styles. Mevagissey itself is particularly known for its historic narrow streets and terraced properties running towards its twin harbour. That's why we offer considerably more choice than a single standard window or door. Our range includes uPVC and aluminium windows, composite entrance doors, French and patio doors, bifolds, conservatories and glass balustrading, with different colours, configurations and finishes available. Whether you're renovating an older property, replacing failed double glazing or modernising a home overlooking the Cornish coast, our team can help you find products that complement the building while improving security, insulation and everyday usability. St Austell Bay Plastics is a family-run Cornish company established in 2005, supplying made-to-measure products with free, no-obligation quotations and a 10-year workmanship guarantee on most installations

    Windows, Doors & Home Improvements in Mevagissey

    uPVC Window Installers, Mevagissey.

    From compact cottages to larger family homes, our made-to-measure uPVC windows offer a practical way to replace ageing glazing while improving warmth, security and ease of maintenance.

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    Aluminium Window Installers, Mevagissey.

    Where the outlook matters, slim aluminium frames can help maximise the glazed area. They're an excellent option for contemporary renovations, extensions and properties designed to make the most of natural light.

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    Door Installers, Mevagissey.

    Create a welcoming entrance or a better connection to your outside space with our range of uPVC, aluminium, French, patio and bifold doors, professionally fitted throughout Mevagissey and nearby villages.

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    Composite Door Installers, Mevagissey.

    Keep the character of your entrance while benefiting from modern performance. Our composite doors combine a traditional appearance with enhanced security and energy efficiency, with an extensive choice of styles and colours.

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    Conservatory Installers, Mevagissey.

    Turn unused outdoor space into somewhere you can enjoy throughout more of the year. We supply new and replacement conservatories individually planned around your home and how you want to use the additional room.

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    Balustrading Installers, Mevagissey.

    For balconies, terraces and raised outdoor areas, glass balustrading provides safety while keeping spaces feeling open – particularly useful where a property benefits from a garden, countryside or coastal outlook.

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    Flexible Finance

    Spread the Cost of Your Home Improvements

    Make windows, doors and conservatories more affordable with monthly payment options — including no-deposit deals for qualifying customers.

    • Flexible monthly payments
    • No-deposit options available
    • Quick online application
    • Subject to status and credit checks
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    Flexible finance available on home improvements

    Frequently Asked Questions

    Yes. Mevagissey has a large number of older and traditional properties, particularly around its historic streets and harbour. We offer different window materials, colours and styles, including options designed to achieve a more traditional appearance. Where a property is listed or subject to planning or conservation restrictions, you should check the relevant requirements before replacement work begins.
    Yes. Our Mevagissey coverage extends into surrounding communities including Portmellon, Pentewan, Gorran Haven, Gorran Churchtown, St Ewe and nearby areas. Portmellon is immediately south of Mevagissey, while Gorran Haven and Pentewan are both only a few miles away.
    If maximising glass and natural light is important, aluminium windows can be worth considering because their strength allows for comparatively slim frames. The best solution will ultimately depend on the size and construction of your existing openings, the character of the property and the appearance you're trying to achieve.
    You don't necessarily need to be replacing every window in the house. Contact us about your project and we can provide a quotation based on what your property actually requires, whether you're considering a new entrance door, replacement glazing or a larger window and door upgrade.
    Why Choose Us

    Why St Austell Homeowners Choose Us

    20+ Years in Cornwall
    St Austell Bay Plastics was established in 2005. More than two decades later, we remain a family-run Cornish company working with homeowners throughout the county.
    Close to Mevagissey
    We're based in the St Austell area, with Mevagissey only a few miles south. We also cover neighbouring communities including Portmellon, Pentewan, Gorran Haven, Gorran Churchtown and St Ewe.
    10-Year Peace of Mind
    We stand behind our work with a 10-year guarantee on most installations, alongside glass and hardware warranty coverage and ongoing support.
    Traditional & Contemporary Choices
    A harbour-side cottage doesn't necessarily need the same solution as a modern extension. Our range gives you the freedom to choose between uPVC, aluminium, composite and different glazing and door configurations.
    Made to Measure for Your Property
    Older and individual properties aren't always suited to standard sizes. Every product we offer is made to measure, allowing your new windows and doors to be specified around your particular property.
    Free, No-Obligation Quotations
    Tell us what you're planning and we'll provide a free quotation without pressure sales tactics, giving you the opportunity to consider the options available for your home.

    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

    Trusted by Homeowners Across St Austell & the Surrounding Area

    Covering St Austell & All Surrounding Towns

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    VS

    Venetia Shepherd

    8 April 2021

    ✓ Recommends us

    Such a brilliant and professional company. So good to deal with and the windows are really special — they have transformed our seaside cottage. Thank you so much!

    KP

    Karen Penrose

    31 July 2020

    ✓ Recommends us
    ★★★★★

    Absolutely thrilled with our new windows, bi-folds and composite front door. Has completely transformed our home. Lovely personal service with high quality products and installation. Wouldn't hesitate to recommend Paul, Christa, Simon and the team.

    LS

    Laura Swailes

    Recommends us

    ✓ Recommends us
    ★★★★★

    Great service and communication when replacing our old back door. Very professional, friendly and high standard of workmanship. Will definitely be using again for front door replacement. Highly recommend.

    SR

    Stephen Rickard

    Recommends us

    ✓ Recommends us
    ★★★★★

    St Austell Bay Plastics have supplied and fitted windows and doors for 2 properties — 28 units. Their work and service has been first class.

    VM

    Victoria Martin

    Recommends us

    ✓ Recommends us
    ★★★★★

    I had french doors installed and am so happy with the service from start to finish. Excellent quality, service and finish. Very professional and quality workmanship — highly recommended!

    JH

    Jo Hello

    Recommends us

    ✓ Recommends us
    ★★★★★

    St Austell Bay Plastics replaced 6 of my wooden windows with uPVC double glazing. They did a fantastic job — clean, tidy and took great care. The windows have transformed the house inside and out. Highly recommend them.

    CB

    Christina Brooks

    Recommends us

    ✓ Recommends us
    ★★★★★

    We had a new door and two conservatory panels refitted. I cannot praise Mike and Connor the fitting team enough — calm, hard working and treating our home as if it was theirs. The results were outstanding. Thank you.

    SL

    Sarah Lee

    Recommends us

    ✓ Recommends us
    ★★★★★

    Absolutely brilliant. Value for money, excellent, fast, efficient, tidy service and quality product. Courteous, knowledgeable, professional staff from consultation to installation. Used them twice for windows and sunroom — would recommend to anyone.

    WS

    Wayne Sewell

    Recommends us

    ✓ Recommends us
    ★★★★★

    After shopping around the big window companies, I came across St Austell Plastics. Friendly greeting, no pressure sales, fantastic price and the fitter was great. The finished item is awesome — no obligation and I will use them again.

    CM

    Chris Maggs

    Recommends us

    ✓ Recommends us
    ★★★★★

    From start to the end of the installation the work was first class. Thank you very much St Austell Bay Plastics.

    1/10

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    AO

    Alan Orme

    2 weeks ago

    ★★★★★

    No pressure sales, good price, great job & I would use them again.

    SP

    Ste Pye

    2 months ago

    ★★★★★

    Team arrived when they said they would and fitted a new front door which looks great. Hassle free from design to installation — will be using again for future planned works.

    LB

    Lynda Baldelli

    4 months ago

    ★★★★★

    Paul, Christa and their team were fantastic from the start. The fitters were meticulous, tidy and have done a wonderful job of everything. We couldn't be happier and thoroughly recommend.

    LK

    Linda Kershaw

    10 months ago

    ★★★★★

    Absolutely fantastic job fitting our windows. Conner did a really lovely job — very clean, respectful and professional. A total credit to the company. Well done. Thank you.

    JH

    Jane Hunkin

    1 year ago

    ★★★★★

    An amazing service from start to finish. Our conservatory roof was replaced expertly by two very hard working, thoughtful and considerate team members. Excellent service, brilliant job well done.

    AA

    Alison Avery

    11 months ago

    ★★★★★

    Nice pleasant guys who worked tidy and well. The price was fair, job looks good. We had a big sash window, double patio door and large square window fitted with no mess. Highly recommended.

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    Why Hundreds of Local Homeowners Trust Us

    Honest advice, quality products and a finish you'll be proud of.

    Our Guarantee
    Our Installations

    When you invest in new windows or doors, you want complete peace of mind — and that's exactly what we deliver. Every installation carried out by St Austell Bay Windows and St Austell Bay Plastics is backed by an insurance-backed guarantee of up to 10 years as standard.

    That means your frames, glazing units, locks and workmanship are all covered long after our vans have left your driveway. Your installation is also registered with CERTASS for building regulation compliance.

    Every installation is carried out by our own in-house team of experienced local fitters - and we never sub-contract. That means consistent quality, full accountability and a clean, tidy finish every single time.

    From your free home survey through to the final fit and CERTASS sign-off, we manage the entire process ourselves. Most installations are completed within a day or two, with minimal disruption to your household.

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