One of the first questions every Ontario property owner asks after a flood or burst pipe is the same: how much does water damage restoration cost? The honest answer is that it depends on the category of water, the size of the affected area, and how quickly mitigation begins. This guide breaks down realistic 2026 pricing across Ontario so you know what to expect before you sign a scope of work.

Average water damage restoration cost in Ontario

Across Kingston and Eastern Ontario, a typical residential water damage restoration project falls between $2,500 and $25,000+. That is a wide range because it spans everything from a contained Category 1 supply-line leak to a multi-room Category 3 sewage backup with full structural reconstruction. Most claims we handle land in the $7,500–$15,000 band.

Loss type	Typical cost range (CAD)	Insurance coverage
Small contained leak (Cat 1, one room)	$1,500 – $3,500	Usually covered
Burst pipe, single floor	$4,000 – $9,000	Usually covered
Finished basement flood (Cat 2)	$8,000 – $20,000	Covered with endorsement
Sewer backup (Cat 3)	$12,000 – $35,000+	Sewer backup endorsement required
Whole-home flood + reconstruction	$30,000 – $100,000+	Depends on cause and endorsements

Water damage restoration cost per square foot

Industry pricing in Ontario typically runs $4–$7 per square foot for mitigation only (extraction, drying, antimicrobial) and $8–$15 per square foot when reconstruction is included (drywall, paint, flooring, trim). Sewage and contaminated-water work runs higher because of PPE, disposal, and disinfection requirements.

What drives the price up

Water category (IICRC S500). Clean water (Cat 1) is cheapest to remediate. Grey water (Cat 2) adds antimicrobial and porous-material disposal. Black water (Cat 3 — sewage, flooding from outside) requires full PPE, contained disposal, and replacement of all affected porous materials.
Time to mitigation. Every 24 hours of delay roughly doubles the secondary-damage risk (swollen subfloor, drywall wicking, mould activation). Insurers expect mitigation to begin within 24–48 hours.
Affected materials. Engineered hardwood and laminate are usually total losses when saturated. Solid hardwood can sometimes be saved with specialty drying mats. Carpet pad always goes; carpet sometimes survives.
Hidden cavities. Wall cavities, joist bays, and HVAC ducts hide moisture. Each cavity that needs to be opened, dried, and closed adds time and material cost.
Equipment time. LGR dehumidifiers and air movers are billed per-day. A 3-day dry costs less than a 7-day dry.
Reconstruction scope. Drywall, paint, baseboard, and flooring reinstall add cost on top of mitigation. A full kitchen or bathroom rebuild can exceed the mitigation cost by 2–3x.

Cost by room

Room	Typical mitigation cost	Typical full restoration cost
Bathroom	$1,500 – $4,000	$6,000 – $18,000
Kitchen	$3,000 – $7,000	$15,000 – $40,000+
Finished basement (1,000 sq ft)	$6,000 – $14,000	$20,000 – $50,000+
Living/dining room	$2,500 – $6,000	$8,000 – $20,000
Bedroom	$1,800 – $4,500	$5,500 – $14,000

What insurance typically covers in Ontario

Standard Ontario homeowner policies cover sudden and accidental water losses — burst pipes, appliance failures, ice-dam intrusion, and most plumbing escapes. They typically do not cover:

Sewer backup (requires a sewer-backup endorsement, often capped at $10K–$25K)
Overland flooding (requires an overland water endorsement)
Slow, long-term leaks the policyholder "should have noticed"
Damage caused by lack of maintenance (rotted pipe joints, failed grout)

We bill major Canadian carriers directly — Intact, Aviva, Co-operators, Wawanesa, Desjardins, TD, Economical, RSA — and our scopes are written in Xactimate, the same platform your adjuster uses.

How to read a restoration estimate

A professional water damage restoration estimate in Ontario should always include:

Line-item scope in Xactimate format — every drying day, every linear foot of baseboard, every sheet of drywall.
Equipment justification — number of air movers and dehumidifiers, sized to the cubic footage and material load.
Daily moisture logs showing the structure reaching dry standard.
Photographic documentation at every milestone.
Antimicrobial product datasheets for any treatment applied.

If an estimate is a lump-sum number with no scope breakdown, do not sign it. Insurers will not pay against it.

When to expect out-of-pocket costs

Even on covered claims, homeowners typically pay:

Their deductible ($500–$2,500 on most Ontario policies)
Any costs above coverage limits (especially on sewer-backup endorsements with $15K–$25K caps)
Upgrade/betterment costs if you want better materials than what was damaged
Code-compliance upgrades that exceed pre-loss condition (sometimes covered by a Code Upgrade endorsement)

Get a free written estimate

Every 24/7 Remedial Services dispatch includes a free on-site assessment with a written, Xactimate-aligned scope before any reconstruction work begins. We respond 24/7/365 across Kingston, Napanee, Brockville, Gananoque, Picton, Smiths Falls, Prescott, Perth, Carleton Place, Belleville, and New Tecumseth.

Call dispatch: (855) 3247-FLOOD — or request an online estimate.

About this guide & the team behind it

This article was written and reviewed by the IICRC-certified restoration technicians at 24/7 Remedial Services, a Kingston, Ontario property-restoration company with more than two decades of combined field and construction experience across Eastern Ontario. We respond 24 hours a day, 7 days a week, 365 days a year to water, fire, smoke, mould, storm, and impact losses across Kingston, Napanee, Brockville, Gananoque, Picton, Belleville, Smiths Falls, Perth, Prescott, Carleton Place, and the surrounding Frontenac, Lennox & Addington, Leeds & Grenville, Lanark, Hastings, and Prince Edward county townships.

Every guide on this blog is grounded in the same industry standards Canadian insurance carriers expect on a properly documented claim file: IICRC S500 for water damage restoration, IICRC S520 for professional mould remediation, and IICRC S700 for fire and smoke restoration. Where the article references a Category 1/2/3 water classification, a Class 1–4 drying environment, a Condition 1/2/3 indoor mould assessment, or a specific Xactimate line item, that terminology is used deliberately — it's the same vocabulary your adjuster uses and the same vocabulary that holds up in subrogation.

If you are dealing with an active loss as you read this, please do not wait. Most Kingston addresses see one of our restoration crews on-site within 60 minutes of dispatch — including overnight, on weekends, and during severe-weather events. Surrounding Eastern Ontario communities follow as quickly as travel allows. The cost of waiting on mitigation is almost always higher than the cost of acting immediately.

How our crews work

› 24/7/365 dispatch from a Kingston base
› Free written Xactimate scope before any work begins
› Daily timestamped moisture logs & photo documentation
› Direct billing to every major Canadian insurer
› Mitigation through reconstruction under one project lead

What we restore

› Water damage — burst pipes, floods, sewage backups
› Fire & smoke — soot removal, deodourization, rebuild
› Mould — IICRC S520 containment & clearance
› Storm & impact — emergency board-up and tarping
› Commercial, multi-unit, institutional & residential

Need restoration help right now?

24/7 Remedial Services dispatches IICRC-certified crews around the clock across Kingston and Eastern Ontario. Whether the damage is water, fire, smoke, mould, or storm-related, calling early in the first 24 hours dramatically reduces the eventual scope of work, the disruption to your property, and the size of your insurance claim. Our team handles the documentation, the insurer coordination, and the rebuild — so you only deal with one accountable contact from the first call to the final paint touch-up.

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