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Keystone Building

Keystone Building specialises in second storey additions in Sydney’s outer western suburbs. With over 20 years of experience, they create stylish, space-saving home extensions tailored to each client’s lifestyle and budget.

Unit 1, 29 Coombes Drive Penrith NSW 2750

Australia

Phone: 02 4722 5466

Opening Hours: Monday to Friday, 8 am–5:30 pm Saturday, Sunday, Closed

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Zenbu ID 1356879, since 13/07/2025
Last edited 13/07/2025 by Keystoneau97
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