VS
Venetia Shepherd
8 April 2021
✓ Recommends usSuch 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!
If you own rental properties across Cornwall — whether a single buy-to-let or a portfolio of homes — St Austell Bay Windows & Plastics is your local glazing partner for keeping your properties compliant, efficient and competitive in the rental market. Rising EPC requirements, tightening landlord regulations and increasing tenant expectations mean that the quality of windows and doors in your rental properties has never mattered more. Upgrading to A-rated double glazing is one of the most cost-effective ways to improve your property's energy rating, reduce tenant energy bills and add long-term value — making it both a compliance investment and a commercial one. We work with individual landlords and portfolio investors across St Austell, Truro, Bodmin, Falmouth, Newquay, Fowey, Lostwithiel, Liskeard, Padstow and St Mawes. Our own in-house fitting team works efficiently and cleanly in occupied and void properties alike — with minimal disruption, fast turnaround and full Certass certification on every installation.
Why Choose Us
Fast Turnaround — Minimal Void Time
We understand that every day your property sits empty between tenancies is a day of lost rental income. Our team works efficiently in void properties to complete installations quickly and to a high standard — so your property is compliant, presentable and back on the market as fast as possible.
EPC Rating Specialists
Upgrading to A-rated double glazing is one of the most effective ways to improve your property's EPC rating. Our team can advise during your free survey on which window and door upgrades will have the greatest impact on your EPC score — helping you achieve EPC C compliance cost-effectively.
Security Upgrades
Landlords with multiple properties benefit from our portfolio pricing structure. Open a trade account and access consistent, competitive pricing across your entire Cornwall portfolio — with a single point of contact for all your properties.
Certass Registered — Full Compliance
Every installation is Certass registered, giving you legal building regulation compliance and full documentation for your property file. Certass certificates are issued on completion — ready for your letting agent, mortgage lender or EPC assessor.
In-House Team — Occupied & Void Properties
Our own in-house fitting team works in both occupied and void properties — cleanly, professionally and with full respect for tenants and their belongings. No sub-contractors, no unknown third parties on your property — just our experienced, accountable local team.
HMO & Multi-Unit Properties
Every installation carries our 10-year insurance-backed guarantee — covering frames, glazing, locks and workmanship. Fully insured and transferable if you sell the property. A long-term investment in your rental portfolio that protects its value for years to come.
Covering St Austell & All Surrounding Towns
Honest advice, quality products and a finish you'll be proud of.
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 & Plastics is backed by a 10-year guarantee 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 FENSA 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 FENSA sign-off, we manage the entire process ourselves. Most installations are completed within a day or two, with minimal disruption to your household.
Yes. Upgrading single-glazed or inefficient windows to A-rated double glazing is one of the most effective interventions for improving an EPC rating. Our team can advise during your free survey on which products will have the greatest impact on your specific property's energy performance — helping you reach EPC C ahead of the 2025 minimum standard for new tenancies.
Yes. Our team is experienced at working in occupied properties — we work cleanly, professionally and with full consideration for tenants. We will agree installation dates directly with you and can liaise with your tenants or letting agent to arrange access. Installations are typically completed in a single day with minimal disruption.
Yes. Landlords with multiple properties across Cornwall can open a trade account with St Austell Bay Plastics and access portfolio pricing across our full product range. Whether you're upgrading one property now or planning a programme of upgrades across your portfolio, our team will work with you on a pricing structure that makes sense for your investment.
Yes. Every window and door installation we carry out is Certass registered, providing full building regulation compliance and legal documentation. This is a requirement under the Building Regulations 2010 for all window and door replacements — and our Certass registration means you receive the necessary certificates without needing to notify building control separately. Certificates are issued on the day of completion.
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