Industrial plumbing contractor in Newmarket.
Plants, warehouses and shops along Harry Walker Parkway, Leslie Street and across Newmarket: process and wash-down water, trench and floor drains, washroom groups and backflow prevention, installed from the drawings by a WHMIS and working-at-heights certified crew.

What does industrial plumbing cover?
Beyond the washrooms and lunchroom, industrial plumbing means process water and wash-down lines, trench drains and floor drains sized for the floor area, oil and sediment interception where the use requires it, backflow prevention to protect the municipal supply, and water heating for the fixture load. We install it from the mechanical drawings and pass the inspections.
Industrial units in Newmarket, from the shops off Harry Walker Parkway to the larger plants along Leslie Street and the Highway 404 corridor, have plumbing that works harder than a storefront: wash-down stations, trench drains across a production floor, process water with backflow protection, and washroom groups sized for shift changes. Seal Plumbing installs it from the drawings and quotes within 24 to 48 hours.
Below-slab work is common on industrial projects, so our concrete scanning and slab cutting service is part of the same crew and the same quote. Above ground, water distribution is run in copper, sized and valved so a line can be isolated without shutting the plant down.
The crew is WHMIS and working-at-heights certified, which matters on a site with mezzanines, racking and lift work, and the company is licensed and insured. Inspections and permits run through our code compliance process.
Industrial plumbing we deliver
- Process & wash-down water lines
- Trench drains, floor drains & hub drains
- Oil & sediment interceptors where required
- Backflow prevention on the service
- Washroom groups, lunchrooms & emergency eyewash connections
- Water heaters sized to the fixture load
How does industrial plumbing work in Newmarket?
Underground first, then distribution, with isolation valves so the plant keeps running.
Quote from the drawings
Itemized quote within 24 to 48 hours, with the underground and above-ground phases separated.
Scan, cut and underground
Slab scanned and cut for trench and floor drains, drains set and inspected before backfill.
Distribution and equipment
Water distribution, backflow prevention, wash-down and process connections installed and isolated by zone.
Test and sign-off
System tested, final inspection passed and valve locations documented for your maintenance team.


What does industrial plumbing cost in Newmarket?
Industrial plumbing in Newmarket is quoted in writing from the mechanical drawings, within 24 to 48 hours. The price depends on the floor area to be drained, the length of trench and slab work, the process water scope and the backflow and interception equipment required.
Commercial quotes are itemized by phase and submitted in writing within 24 to 48 hours of receiving the drawings. The written quote is the number that counts; changes to the drawings or scope are priced as change orders, also in writing.
What other commercial plumbing services do you offer in Newmarket?
The same licensed crew, across every commercial service and sector in Newmarket.
What does your recent commercial work look like?
Underground drains, risers and distribution from recent commercial and industrial projects. Tap a photo for a closer look.
Which Newmarket areas do you serve?
Commercial and industrial units along Harry Walker Parkway, Leslie Street and the Highway 404 corridor, the Main Street, Davis Drive and Yonge Street storefronts, and projects across Newmarket, Aurora, Bradford and the north GTA.
Commercial work across the GTA: see the main commercial plumbing page or all service areas →
Residential job instead? See our Newmarket plumber page.
Industrial Plumbing questions Newmarket businesses ask
How do I get started?
Call 647-402-4825 or send your drawings through the contact page. Quotes on commercial work are submitted within 24 to 48 hours, in writing, from the mechanical and architectural drawings.