T2026-211 - New Hamburg WWTP - Aeration Diffuser & Header Replacement

Region of Waterloobuyer
Sep 09, 2026 closes in 15 days
Heavy civil / bonded GCcrew scale · GROUND's inference
Open on the buyer's portal ↗ Bid documents, addenda and submission live on the portal — free after registration.
Concrete & sidewalks Water & wastewater plants posted Jul 30, 2026
Scope

What the buyer describes

The scope of work for this project involves the rehabilitation and upgrade of the aerobic digester basin aeration systems. Key activities include cleaning the existing basins, demolishing existing aeration equipment, modifying concrete support infrastructure, and installing a new coarse bubble diffuser system. The work also includes modifications to the process air system, including installation of new twin air headers, removal or abandonment of existing piping, and reconfiguration of blower piping and valving including installation of a valve chamber, and installation of overflow piping between basins.

GROUND estimate · inference, not a quote

Most likely final-price range

$320,124 – $4,148,214 middle half of 4 past jobs whose scope reads like this one
$733,562median of those jobs
Most similar past jobBuyerPriceWho
T2025-217 - Hespeler WWTP Aeration Controls Implementation Region of Waterloo $320,124 low bid H2Ontario Inc.
2025-395T - Clarkson WRRF Outfall Cleaning, Diffuser Replacement and Micro Turbine... Region of Peel $19,448,000 low bid W.A. Stephenson Mechanical Contractors Limited
2024-466T - Clarkson Wastewater Resource Recovery Facility (WRRF) Plant 1 Diffuser and... Region of Peel $4,148,214 low bid Glover-Hill Inc.
S-3419A-25 - Mid Halton WWTP – Main Admin Building Window Replacement, Town of Oakville Halton Region $277,229 low bid 2231836 Ontario Limited o/a BB Building Solutions
D2025-44 - Uxbridge Water Pollution Control Plant (WPCP) aeration blowers replacement... Durham Region $1,147,000 low bid Modern Niagara Toronto Inc

Built from keyword-matched historical jobs: "awarded" rows are executed contract values, "low bid" rows are unofficial bid-opening totals. Similar scope is not identical scope — treat this as the bracket to sanity-check your own takeoff against, never as the estimate itself. Trade-wide, concrete & sidewalks low bids run $856,074 median across 550 openings — full history on the board.

Competition

28 companies have registered

ACG-Envirocan Inc. · ASCO Construction (Toronto) Ltd. · BGL Contractors Corp · BMI Industrial Inc · Baseline Constructors Inc. · Conval Process Solutions Inc · East Elgin Concrete Forming Limited · Entec Waste Management Inc. · Finnbilt General Contracting Limited · Floval Equipment Ltd · GFL Environmental Services Inc. · Glover-Hill Inc. · H2Flow Equipment Inc. · H2Ontario Inc. · Kingdom Construction Limited · McRae Integration Ltd. · and 12 more

Public plan-taker registrations from the portal — registering ≠ bidding.

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