Servicing all of NSW. From Sydney CBD to regional NSW.

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A1 Unrestricted Certifiers Servicing Your Local Area

No.1 Building Services provides private certification services across all Sydney metropolitan suburbs and Greater NSW. As an Unrestricted Building Certifier (formerly A1), we service Greater Western Sydney, the Northern Beaches, Eastern Suburbs, Inner West, South Sydney, the Hills District, Sutherland Shire, the North Shore, Parramatta and surrounds, and the South West Growth Corridor. We are appointed as Principal Certifier on projects across every local government area (LGA) within the Greater Sydney region, including Canterbury-Bankstown, Cumberland, Fairfield, Georges River, Hawkesbury, Ku-ring-gai, Lane Cove, Mosman, Northern Beaches, North Sydney, Randwick, Ryde, Strathfield, Willoughby, and Wollondilly councils.