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Below-Slab Plumbing · Tottenham, ON · Updated October 2026

Concrete scanning and slab cutting for plumbing in Tottenham.

Before a drain goes under a commercial floor, the slab is scanned for rebar, conduit and cables, then cut and chipped cleanly along the planned route. One crew, one quote, from scan to backfill.

Underground drain trench in a commercial unit by Seal Plumbing

Why scan the concrete before cutting a slab for plumbing?

Scanning shows what is inside the slab before the saw touches it: rebar, electrical conduit, post-tension cables and existing pipes. Cutting blind risks a severed service, a structural repair or an injury. Seal Plumbing scans first, marks the route, then cuts and chips only what the new drain needs.

Adding washrooms, a commercial kitchen or floor drains to an existing Tottenham unit usually means opening the slab. Older buildings on Queen Street and newer tilt-up units on Industrial Parkway hide different things in the concrete, so we scan every cut line before the saw starts and mark conduit, rebar and existing drains on the floor.

The cut follows the drain route from the mechanical drawings, with the trench sized for the pipe, the bedding and the slope. We chip out the concrete, excavate to the invert elevation, set the drains and have the underground inspection passed before backfill and the slab patch. See commercial drain, vent and water line installation for what goes into the trench.

Because the same crew scans, cuts and installs, there is no hand-off between a cutting contractor and the plumber, and the quote covers the whole sequence. Dust control and site protection are part of the job on occupied buildings.

Concrete work we handle for plumbing

  • GPR concrete scanning for rebar, conduit & cables
  • Layout and marking of the drain route
  • Slab cutting with dust control
  • Chipping, excavation & bedding
  • Underground drain installation & inspection
  • Backfill, compaction & slab patch

How does concrete scanning & slab cutting work in Tottenham?

Scan, mark, cut, install, inspect, patch. Each step is done before the next so nothing is cut twice.

1

Scan and mark

The slab is scanned along the planned route and any rebar, conduit, cables or existing pipes are marked on the floor.

2

Cut and chip

The slab is cut to the trench width with dust control, chipped out and excavated to the drain depth.

3

Install and inspect

Drains are set to slope on proper bedding and the underground inspection is passed before anything is covered.

4

Backfill and patch

The trench is backfilled and compacted and the slab is patched flush, ready for flooring.

Underground drain trench in a commercial unit by Seal Plumbing
Trench cut for underground drains
Commercial drain stacks installed by Seal Plumbing
Stacks set above the new drains

What does concrete scanning & slab cutting cost in Tottenham?

Concrete scanning and slab cutting in Tottenham is quoted in writing with the underground plumbing it serves, within 24 to 48 hours of receiving the drawings. The price depends on the length of trench, the slab thickness, what the scan finds in the way and the condition of the subgrade.

Trench length and depthLonger runs and deeper inverts mean more cutting, chipping and excavation.
Slab thicknessThicker or reinforced slabs take longer to cut and chip.
ObstructionsConduit, cables or existing drains in the route change the plan and the price.

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.

Our Work

What does your recent commercial work look like?

Underground drainage and commercial rough-ins from recent projects. Tap a photo for a closer look.

See the full project gallery →

Which Tottenham areas do you serve?

Commercial and industrial units along Industrial Parkway and the Highway 9 corridor, the Queen Street and Mill Street storefronts, and projects across New Tecumseth, Bradford, Newmarket and the north GTA.

Industrial ParkwayQueen StreetHighway 9 corridorTottenham RoadMill StreetBeetonAllistonSchombergBradfordNewmarket

Commercial work across the GTA: see the main commercial plumbing page or all service areas →

Residential job instead? See our Tottenham plumber page.

Concrete Scanning & Slab Cutting questions Tottenham businesses ask

Yes. We schedule the cutting for the hours you set, contain dust and protect the surrounding finishes and equipment.
We stop and reroute. Cutting a post-tension cable is a structural problem, so the drain route is adjusted with the engineer before any cutting.
Yes. The trench is backfilled, compacted and patched flush so flooring can go down over it.
Yes. The underground plumbing inspection is booked and passed before the trench is backfilled.
Both. The same crew scans, cuts, installs the drains and patches, under one quote.

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.