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About

Construction-led oversight, from the experts who've built strata properties for decades.

Sentinel is led by licensed BC builders and construction professionals who design, plan, and deliver multi-family buildings from acquisition through key turnover. The same people who put these properties together are the ones inspecting them, documenting conditions, and protecting the asset between depreciation reports. We are not an emergency repair service, and we do not carry out or manage repair work. When a finding needs an engineer or a trade, our report says so.

Headquartered in British Columbia. In person across the Lower Mainland, including Greater Vancouver, and the Fraser Valley. Elsewhere in British Columbia we work remotely: document review, and findings review with your council by video, with no Sentinel inspector on site.

Modern multi-storey apartment building with cantilevered balconies and glass railings
Leadership
Founder

James Stone

Holder of BC Housing residential builder licence 48282 in the general contractor class, with over 25 years of construction experience across the Fraser Valley and Lower Mainland. James has managed multi-family residential, commercial, and renovation projects, including new construction and strata-scale builds, and the licence covers new home construction and building envelope renovation.

Director of Operations

Andrew Sturgess

Andrew brings 12+ years across concrete high-rise, multi-family, and residential renovations, plus three years as a multi-family Superintendent overseeing inspections, trades, and deficiency resolution. As primary point of contact, Andrew coordinates inspections, reporting timelines, and stakeholder updates for every member building.

Co-Founder

Dan Hirai

Dan leads field inspections. A UBC business graduate and Red Seal carpenter, Dan has been a multi-family owner-operator since 2008, bringing hands-on experience in building systems.

Director of Technology & Marketing

Rachael DePatie

Rachael brings over a decade of experience in construction technology and data systems. She is responsible for the Sentinel app and Sentinel's marketing, and ensures every inspection is delivered as a clear, photo-documented report that council can act on.

Director of Sales

Julie Waterton

Julie brings an extensive background in sales, training, and client relations, including leading one of Western Canada's top service operations and serving as Regional Trainer. She most recently worked as a Customer Relations Coordinator in residential real estate, managing relationships between homeowners, developers, and building stakeholders across new multi-family projects.

Deterioration is inevitable. Surprise is not.

Your asset is only as sound as the envelope that surrounds it. Start with a short virtual presentation. We walk through what Sentinel does, answer questions, and let you decide if it fits. No proposal, no commitment, no pressure.

Aerial view of Victoria neighbourhood residential buildings
SENTiNEL

The independent technical record for BC multi-family buildings.

Sentinel provides independent technical oversight for multi-family buildings: structured inspections, written reports, and a continuous building record that keeps every stakeholder informed.

Quarterly email

Building maintenance, once a quarter

One email each quarter from Sentinel on building maintenance topics. We'll ask you to confirm by email first.

Sentinel is not an emergency service. For life-safety emergencies, call 911.

Business Name: Sentinel Property Services Inc.

SENTINEL IS NOT AN ENGINEERING OR ARCHITECTURAL FIRM. READ THE FULL SCOPE OF OUR SERVICES.

© 2026 Sentinel Property Services Inc. (BC1584498). All rights reserved.

SENTiNEL Property Group is an operating name of Sentinel Property Services Inc., incorporated in British Columbia.