The best plumbers in Hamilton in 2026 are Pro House Maintenance, Lakeview Plumbing Services and In-Out Plumbing, then five more top-rated local firms. We started with 120 plumbing businesses on Google Maps. Only 59 firms with 4.5 stars or higher from 10 or more reviews made the cut. A backwater valve costs $1,292 to $1,562 plus HST from the city's pre-qualified contractors.
- Only 59 of the 120 Hamilton plumbing businesses we found on Google Maps met our bar of 4.5 stars from 10 or more reviews.
- All 7 ranked Hamilton plumbers hold a 5.0 Google rating, from 133 to 287 reviews each.
- Hamilton's 5 pre-qualified contractors charge $1,292 to $1,562 plus HST to assess and install a backwater valve.
- The city's Protective Plumbing grant pays up to $2,000, but only $500 for a valve put in by a contractor off its list.
- Plumbers in the Hamilton and Niagara Peninsula region earn a median wage of $32.93 an hour, according to Job Bank.
| Rank | Company | Best for | Credentials | Google rating | Based in |
|---|---|---|---|---|---|
| 1 | Pro House Maintenance | Comparing vetted plumbers for free | Every pro: licences, WSIB, insurance, references, background | Not applicable (matching service) | Serves Hamilton |
| 2 | Lakeview Plumbing Services | A free 1-year warranty on its work | None stated on its website | 5.0 (287 reviews) | Stoney Creek |
| 3 | In-Out Plumbing Inc | Free assessments and as-quoted pricing | Founded 2022 (company-stated) | 5.0 (230 reviews) | Service area only |
| 4 | JM Plumbing Care | Trenchless pipe repair and camera inspections | None stated on its website | 5.0 (205 reviews) | Service area only |
| 5 | Drain Unit | 24/7 drain and backup calls | Founded 2020 (company-stated) | 5.0 (192 reviews) | Hamilton |
| 6 | Royal Work Waterproofing | Basement flood protection and sump pumps | None stated on its website | 5.0 (144 reviews) | Hamilton |
| 7 | MDM Mechanical | Boilers, gas lines and water heaters | None stated on its website | 5.0 (143 reviews) | Hamilton |
| 8 | Plumb Pros | Three generations of family plumbing | Journeyman-certified team (company-stated) | 5.0 (133 reviews) | Hamilton |
Who are the best plumbers in Hamilton in 2026?
The best plumbers in Hamilton in 2026 are Pro House Maintenance, Lakeview Plumbing Services and In-Out Plumbing. JM Plumbing Care, Drain Unit, Royal Work Waterproofing, MDM Mechanical and Plumb Pros fill out the top eight. Every ranked plumber holds a 5.0 Google rating, with 133 to 287 reviews each.
1. Pro House Maintenance: best for comparing vetted plumbers for free
Pro House Maintenance is a free matching service, and it sits at number one because the checks are done before you call. Each plumber we match in Hamilton has passed WSIB, insurance, reference and background checks. You compare several written quotes and choose. Our satisfaction guarantee backs work from the plumber you hire.
Hamilton’s field narrowed fast: 59 of 120 plumbing businesses met our bar, and only 1 of the top 15 matched a TSSA registration in our search. That matters for gas water heaters and boilers. When a job involves gas, we confirm the plumber’s TSSA registration first.
- Trade licences. We confirm the plumber holds Ontario trade certification, plus a TSSA registration when the job involves gas lines or gas water heaters.
- WSIB clearance and liability insurance. We confirm a current WSIB clearance and commercial general liability insurance before a pro joins our network.
- Reviews and references. We read public reviews and speak with past clients before a pro is accepted, looking for patterns, not one-off complaints.
- Background checks. We run background checks before a pro is matched with homeowners, because the people in your home matter as much as the work.
- Tell us about the job. Share the project and your address through the free quote form. It takes about a minute.
- Get matched with vetted pros. We match you with several pros who have already passed our checks and serve your area.
- Compare written quotes. Each pro gives you a written quote, so you can compare price, scope and timing side by side.
- Hire with a guarantee behind you. You choose who to hire. Work from a pro we matched you with is backed by our satisfaction guarantee; ask us for the terms before you sign.
2. Lakeview Plumbing Services: best for a free 1-year warranty on its work
- Google rating 5.0 from 287 reviews checked Oct 2, 2026
- Warranty 1-year warranty, free of charge company website
- Based in Stoney Creek
- Visit the Lakeview Plumbing Services website
Lakeview Plumbing Services is a family-owned Stoney Creek plumber with a 5.0 Google rating from 287 reviews, the most on this list. Its website offers a free 1-year warranty on its work and 24/7 help with leaks. It serves Hamilton, Burlington, Ancaster, Grimsby and Waterdown.
- Watch-outs: Its FAQ says in-person quotes carry a basic fee, so ask the amount or start with a free phone quote.
- Best for: Stoney Creek homeowners who want the warranty term set in writing.
3. In-Out Plumbing Inc: best for free assessments and as-quoted pricing
- Google rating 5.0 from 230 reviews checked Oct 2, 2026
- Founded 2022 company website
- Based in Service-area business (no public street address)
- Visit the In-Out Plumbing Inc website
In-Out Plumbing Inc. is a Hamilton plumber founded in 2022, its website says. It holds a 5.0 Google rating from 230 reviews. The site offers free first assessments and says every job is completed as quoted, with no surprise fees. It works mostly on homes, plus some small commercial jobs.
- Watch-outs: Its FAQ says it does small pipe snaking only, so ask before you book a main sewer clog.
- Best for: Small home jobs where you want the quoted price to hold.
4. JM Plumbing Care: best for trenchless pipe repair and camera inspections
- Google rating 5.0 from 205 reviews checked Oct 2, 2026
- Warranty Warranty on parts and labour (terms not posted) company website
- Based in Service-area business (no public street address)
- Visit the JM Plumbing Care website
JM Plumbing Care is a Hamilton plumber with a 5.0 Google rating from 205 reviews. Its website cites over 10 years in the plumbing business. It lists emergency repairs, video camera inspections and trenchless pipe repair, which fixes pipes without digging up the ground.
- Watch-outs: The site mentions a parts and labour warranty but posts no terms, so ask for them in writing.
- Best for: Sewer pipe repairs where you want to save the lawn or driveway.
5. Drain Unit: best for 24/7 drain and backup calls
- Google rating 5.0 from 192 reviews checked Oct 2, 2026
- Founded 2020 company website
- Based in Hamilton
- Visit the Drain Unit website
Drain Unit is a Hamilton drain and plumbing company that has served customers since 2020, its website says. It holds a 5.0 Google rating from 192 reviews. The site offers 24/7 emergency help and free estimates on repairs, and states that the company is licensed and insured.
- Watch-outs: Its site says it serves Toronto as well as Hamilton, so confirm a local crew and arrival time.
- Best for: Blocked drains and late-night backups.
6. Royal Work Waterproofing: best for basement flood protection and sump pumps
- Google rating 5.0 from 144 reviews checked Oct 2, 2026
- Based in Hamilton
- Visit the Royal Work Waterproofing website
Royal Work Waterproofing is a basement waterproofing company with a Hamilton location and a 5.0 Google rating from 144 reviews. Its website lists sump pump installs, exterior waterproofing and foundation repairs, with free estimates. The site says its own licensed technicians complete every project and that it guides customers on city rebates.
- Watch-outs: It is mainly a waterproofing firm, so confirm it takes on everyday jobs such as faucets or toilets.
- Best for: Wet basements that need a sump pump and drainage plan.
7. MDM Mechanical: best for boilers, gas lines and water heaters
- Google rating 5.0 from 143 reviews checked Oct 2, 2026
- Warranty Warranty on part replacements and maintenance work (terms not posted) company website
- Based in Hamilton
- Visit the MDM Mechanical website
MDM Mechanical is a family-owned heating and plumbing contractor with a Hamilton address and a 5.0 Google rating from 143 reviews. Its website covers boilers, new or moved gas lines, and tank or tankless water heaters. It serves Hamilton, Brantford, Stoney Creek, Dundas, Ancaster and nearby towns.
- Watch-outs: It did not match in our TSSA search and lists a Brantford office, so ask for the TSSA number and which office does the work.
- Best for: Homes heated by a boiler, or a gas line that needs to move.
8. Plumb Pros: best for three generations of family plumbing
- Google rating 5.0 from 133 reviews checked Oct 2, 2026
- Certification Journeyman-certified team company website
- Based in Hamilton
- Visit the Plumb Pros website
Plumb Pros is a family-owned Hamilton company with over 40 years of experience passed down through three generations, its website says. It was formerly Albion Plumbing, Heating, and Cooling. It holds a 5.0 Google rating from 133 reviews. The site says every team member is a certified journeyman.
- Strengths: The site offers 10% off a first service booked online.
- Watch-outs: We found no warranty terms on its website, so ask for them in writing.
- Best for: Homeowners who want a long family track record.
How much does a backwater valve cost in Hamilton?
A backwater valve with an assessment costs $1,292 to $1,562 plus HST from Hamilton’s 5 pre-qualified contractors, according to the city. The building permit adds $291. Hamilton’s Protective Plumbing grant then covers up to $2,000, but only $500 for a valve if you hire a contractor off the list.
| Job | Typical cost (CAD) | Source |
|---|---|---|
| Backwater valve, assessment and install (pre-qualified contractors) | $1,292 to $1,562 plus HST | City of Hamilton |
| Building permit for a backwater valve | $291 | City of Hamilton |
| Downspout disconnection | $75 plus HST each | City of Hamilton |
| City grant with a pre-qualified contractor | Up to $2,000 | City of Hamilton |
| City grant for a valve, any other contractor | Up to $500 | City of Hamilton |
| Plumber wage, Hamilton and Niagara region (median) | $32.93 an hour | Job Bank, 2025 |
To qualify, you must own a single-family home with a basement, built before January 1, 2012, and hooked up to city sewers. If the work costs more than the grant, the city also lends up to $2,000. None of the 7 picks on this page appear on the city’s pre-qualified list.
For everyday repairs, Job Bank lists a median plumber wage of $32.93 an hour in the Hamilton and Niagara Peninsula region. For national leak and repair data, see our plumbing statistics for 2026. To price your own job, get free plumbing repair quotes in Hamilton.
How do you choose a plumber in Hamilton?
Choose a Hamilton plumber by checking the plumber’s certificate on the Skilled Trades Ontario register, WSIB clearance and insurance, then get a written contract. Ask the city whether your job needs a permit. Gas work needs a TSSA registered contractor, and an estimate can only rise 10% unless you agree.
- Check the licence. Ask for the plumber’s Ontario Certificate of Qualification. For gas lines or a gas water heater, also check the company in TSSA's contractor directory.
- Confirm WSIB clearance. Ask for the company’s WSIB account number and confirm a current clearance on WSIB’s free eClearance lookup.
- Ask for proof of liability insurance. A certificate of commercial general liability insurance should name the company that will do the work.
- Check the city licence. Hamilton says all contractors must hold a valid Trade and Contractor Licence, including roofers and other building repair, plumbing, drain and HVAC contractors. Search the City of Hamilton licensed contractors list.
- Get it in writing. Under Ontario law, any home renovation contract worth more than $50 must be in writing, and the final price cannot exceed an estimate by more than 10% unless you agree (Ontario consumer protection rules).
- Keep the deposit small. Ontario recommends a down payment of no more than 10%, and never paying in full before the work is done.
The grant rule is strict: “Property owners who choose a contractor outside of the list will only be eligible for a maximum of $500 for the installation of a backwater valve.” So ask any plumber whether they are on the city’s list before you book valve work.
Pro House Maintenance runs the WSIB, insurance, reference and background checks before a plumber is matched with you. If your tank is leaking or past its prime, you can also compare water heater installation in Hamilton too.
How did we rank these Hamilton plumbers?
We ranked Hamilton plumbers with data, not ads. Three Google Maps searches across Hamilton and Stoney Creek found 120 plumbing businesses. We kept 59 that are based in Hamilton, list a website and hold 4.5 stars from 10 or more reviews, then ranked them by review-weighted rating.
| Step | Businesses remaining |
|---|---|
| Found on Google Maps | 120 |
| Primary Google category is a plumber | 109 |
| Open, with a website of its own | 94 |
| In Hamilton (by address or Google map pin) | 89 |
| 4.5+ stars from 10+ Google reviews | 59 |
| Listed on this page (top ranked) | 7 |
The score blends each rating with its review count, so a 5.0 from 287 reviews beats a 5.0 from 11. All 7 picks hold a 5.0, so review volume set the order. On October 2, 2026, we also searched TSSA’s directory for the top 15 Hamilton plumbers.
We recheck every rating every 90 days. Facts marked “company website” come from each plumber’s own pages, and we keep the exact quotes in our research files. Found something wrong? Tell our editors about the error and we will review it.
What do Hamilton homeowners ask before hiring a plumber?
Hamilton homeowners ask about flood grants, valve prices, licences and gas safety before they hire a plumber. These answers draw on the City of Hamilton, Skilled Trades Ontario, TSSA and Ontario consumer rules. Each one stands alone, so go straight to the question you need.
How much does a backwater valve cost in Hamilton?
The City of Hamilton lists prices from its 5 pre-qualified contractors: $1,292 to $1,562 plus HST to assess and install a mainline backwater valve. The building permit adds $291. The city grant then covers up to $2,000 of eligible work when you use one of those contractors.
Does Hamilton offer a grant for basement flood plumbing?
Yes. The Protective Plumbing Program pays up to $2,000 for a backwater valve, downspout disconnection and a sump pump installed with a valve. Your single-family home must have a basement, use city sewers and date from before January 1, 2012. A city loan of up to $2,000 covers costs above the grant.
Do plumbers need a licence in Hamilton?
Yes, from the province. Skilled Trades Ontario says plumbing is a compulsory trade, so anyone doing the work must hold a certificate or a training agreement and appear on its Public Register. Ask the City of Hamilton whether your job needs a building permit; backwater valves do.
Who can work on a gas water heater or boiler in Hamilton?
Only a TSSA registered fuels contractor can do fuels work in Ontario, according to TSSA. MDM Mechanical lists boilers and gas lines, but none of the seven picks matched a registration in our search. Look up the company in TSSA's directory before any gas work starts.
Can I cancel a plumbing contract in Ontario?
Yes, if you signed it at home. Ontario gives you a 10 calendar-day cooling-off period to cancel a contract signed in your home. Any home renovation contract worth more than $50 must also be in writing, so keep a copy and note the date you signed.
Is Pro House Maintenance free to use?
Yes, it is free for homeowners. Pro House Maintenance matches you with several Hamilton plumbers who have passed WSIB, insurance, reference and background checks. Each one sends a written quote, so you can compare price and scope. You pick who to hire, and our satisfaction guarantee backs the work.
Where can you find plumbers near Hamilton?
The closest plumbers lists to Hamilton cover Milton (29 km away), Mississauga (41 km away) and Guelph (44 km away). Each list follows the same method: 4.5-star Google ratings from 10 or more reviews, official registry checks where Ontario requires a licence, and free vetted matching from Pro House Maintenance at number one.
- Best plumbers in Milton (29 km from Hamilton)
- Best plumbers in Mississauga (41 km from Hamilton)
- Best plumbers in Guelph (44 km from Hamilton)
- Best roofing companies in Hamilton
- Best electricians in Hamilton
- Best HVAC companies in Hamilton
- Best kitchen renovation companies in Hamilton
- Best gutter companies in Hamilton
- Best handymen in Hamilton
- Compare free plumbing repair quotes in Hamilton from vetted local pros
- Best plumbers across Ontario, city by city
- Plumbing Repair statistics and cost data from our research team
- City of Hamilton, Protective Plumbing Program
- Job Bank (Government of Canada), Plumber wages in Ontario (updated November 19, 2025)
- Skilled Trades Ontario, Plumber trade information
- TSSA, Authorized Heating Fuel Contractors directory
- Government of Ontario, Your rights when starting home renovations or repairs