Subtext: Don't let budget hold back your home improvement. St Austell Bay Windows & Plastics offers flexible finance options on all our products — so you can get the windows, doors or conservatory you want now and spread the cost with manageable monthly payments.
Quality windows, doors and conservatories are one of the most valuable improvements you can make to your home — improving warmth, security, kerb appeal and resale value all at once. We believe every homeowner in St Austell and across Cornwall deserves access to quality products regardless of budget. That's why we've partnered with a leading home improvement finance provider to offer flexible payment plans on all our products — from a single replacement window to a full conservatory installation. Whether you'd prefer to spread the cost over 12 months interest-free or take a longer-term plan at a competitive rate, our team will help you find the right option for your circumstances.
Based in St Austell
10-Year Insurance-Backed Guarantee
In-House Fitters
FENSA Registered
Flexible Finance Available
A-Rated Energy Efficient Products
Covering St Austell & All Surrounding Towns
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 insurance-backed guarantee as standard.
That means your frames, glazing units, locks and workmanship are all covered long after our vans have left your driveway. Your guarantee is fully insured, transferable if you sell your home, and registered with FENSA for building regulation compliance.
Every installation is carried out by our own in-house team of experienced local fitters — 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, with minimal disruption to your household.
Prices for uPVC casement windows typically start from around £450 per window supplied and installed, depending on size, glazing specification and colour. For an accurate quote tailored to your home, contact us for a free survey.
In most cases, replacing like-for-like windows does not require planning permission. However, if your property is in a conservation area, an AONB or is a listed building, restrictions may apply. Our team can advise you on this during your free survey.
Yes. All our window and door installations are registered with FENSA, ensuring they comply with current building regulations. You receive your FENSA certificate on completion of every installation.
We cover St Austell and a wide range of surrounding towns including Truro, Bodmin, Newquay, Falmouth, Fowey, Lostwithiel, Padstow, Liskeard and St Mawes — and many villages in between.