Backwater Valve & Sump Pump Bundle in Milton

The City of Milton raised the maximum to $6,650 effective May 2026 (up from $3,400). Per-device caps: backwater valve 80% up to $1,600 each (two devices allowed = $3,200), sump pump with battery backup 80% up to $2,250, plumbing assessment 80% up to $500. Eligible work retroactive to November 12, 2025. Milton residential properties only. RenoHouse prepares all subsidy paperwork on your behalf.

Yes — Milton Plumbing Permit required, work performed under Milton Plumbing Bylaw 681 (Sewers). Inspection by Milton Building required. RenoHouse pulls the permit and coordinates inspection. The permit is also a subsidy requirement — work without a permit is not reimbursable.

Bundle (one backwater valve + sump pump + battery backup + plumbing assessment) gross cost: $5,000–$11,000. After full Milton subsidy reimbursement: $3,000–$6,500 net out-of-pocket. Pricing depends on basement-floor access (concrete coring difficulty), pit size, and discharge-line routing. Free on-site assessment quotes the exact number.

Homeowner pays the contractor in full at project completion. RenoHouse submits the application package (City form, itemized invoice, before/after photos, contractor declaration, permit number) to Milton Water on the customer's behalf. The City reimburses the homeowner directly by cheque or direct deposit, currently 8–14 weeks after submission. The subsidy is NOT a credit at signing.

Yes — and the backwater valve alone is subsidy-eligible up to $1,600 per device. But for most Milton homes the bundle is the correct answer: backwater valve handles sewer back-up, sump pump handles groundwater. Skipping the sump leaves groundwater unmanaged. We assess at the site visit and recommend the right scope.

Backwater valves: Mainline Backflow MLE-4F (full-port, removable flapper, MMCD-approved), Mainline MAR-3, IPEX, or Backwater Valve Inc. — all CSA B181.1/B181.2 certified and Bylaw 681 compliant. Sump pumps: Liberty Pumps 257 (1/3 HP) or 287 (1/2 HP) cast iron, Zoeller M53 or M98 — all with vertical float switches. Battery backup: Basement Watchdog BWE or Liberty SJ10 with 7-hour minimum runtime AGM batteries. We do not install plastic-housing pumps or tethered-float units in Milton applications.

No — illegal under Milton Bylaw 681 and not subsidy-eligible. Sump pump must discharge to grade (lawn or garden), to a splash pad away from foundation, or to a separate storm-water connection. We route the discharge line during install — typically through a foundation core to an exterior splash pad 2 m+ from foundation.

Typical bundle install: 1–2 days. Day 1: backwater valve trench, concrete cut, pipe install, valve set. Day 2: sump pit excavation (if new pit needed), pump install, battery backup, discharge line, electrical connection (sump must be on a dedicated GFCI circuit per Milton Plumbing Bylaw). Concrete patch cures 24–48 hours before re-flooring. Inspection scheduled 2–5 business days after final install.

Yes — most Canadian insurers (Aviva, Intact, TD, Co-operators, RSA) offer water-damage premium discounts after backwater valve installation, typically 5–15% off the water peril. The discount is in addition to the City subsidy. Provide your installer's permit number and inspection sign-off to your insurer to claim. We furnish all documentation.

Eligible work back to November 12, 2025 qualifies for the expanded $6,650 subsidy. Work completed before Nov 12, 2025 falls under the previous $3,400 program (still claimable if not previously submitted). Permit, paid invoice, and before/after photos are required regardless. Call us — we audit retroactive eligibility on the phone.

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