Arlington Service Entrance & Mast

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About this category

Arlington service entrance and mast products weatherproof and support the overhead service drop and entrance, covering entrance caps, sill plates, roof flashing and service-entrance wire holders. Maple Electric Supply is an authorized Canadian Arlington Industries dealer, so stock is genuine and carries the full manufacturer warranty, priced in CAD with no cross-border duty. Shipping is fast across Ontario and Quebec, and counter pickup at our Vaughan warehouse is available Monday to Friday. Install to your local requirements and the Canadian Electrical Code.

Arlington service entrance and mast fittings — SEU/SER connectors, entrance caps, mast flashings, sill plates, and wire holders — assemble the overhead service drop from the mast down to the meter socket. Stocked in Canada by Maple Electric — priced in CAD, ships Canada-wide, will-call pickup available.
Common questions
What size mast flashing do I need for a 2" service mast?
Match the flashing bore to the actual mast OD (a 2" rigid mast has roughly 2.375" OD). Arlington flashings are sized to the mast trade size printed on the product — pick by trade size, not conduit ID.
Are SEU connectors interchangeable with SER connectors?
Some Arlington SEU/SER connectors are dual-listed for both flat SEU and round SER; others are cable-specific. The listed cable range is on the spec sheet — the wrong connector on the wrong cable type is not CEC-compliant.
Is service-entrance work something I can DIY?
Service-entrance work is live-line work in most Canadian jurisdictions and must be done by a licensed electrician coordinated with the utility. Maple supplies the fittings; installation and code compliance are the licensed electrician's responsibility per the CEC.

Maple Electric Supply ships electrical materials across Canada from our Vaughan, Ontario warehouse. Free shipping on orders over $150 in Ontario and Quebec, 10% off orders everywhere else in Canada, and counter pickup in Vaughan. Lighting, wire, breakers, controls, heating, EV charging and tools for electricians, builders and facility teams.