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About Polycastle Ltd, uPVC Specialists in Lowestoft

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uPVC Window Installations • uPVC Window Repairs • Window Upgrades • Replacement Fittings • Lock Services • Energy Efficient Windows • Improved Home Security • Composite Doors • French Doors • Sliding Patio Doors • Conservatories • Warm Roofs • Year-Round Conservatory Use • Lower Energy Bills • More Natural Light • Extra Living Space • Free Quotes & Consultations

About Us

Founded in 1989, Polycastle Ltd has established itself as Lowestoft’s leading supplier, manufacturer and installer of uPVC home improvement products. We do it all, including doors, windows and conservatories. Get in touch for a free quote and consultation.
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Be energy efficient and stay warm indoors with our bespoke windows in Lowestoft.

Call 01502 501 036
uPVC Window Installations • uPVC Window Repairs • Window Upgrades • Replacement Fittings • Lock Services • Energy Efficient Windows • Improved Home Security • Composite Doors • French Doors • Sliding Patio Doors • Conservatories • Warm Roofs • Year-Round Conservatory Use • Lower Energy Bills • More Natural Light • Extra Living Space • Free Quotes & Consultations