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10 Best Plumbers in Hamilton, ON

The best plumbers in Hamilton for 2026 are John The Plumber, Birnie Plumbing and Drains, Superior Plumbing & Heating, Lakeview Plumbing Services, Flow Plumbing, Hamilton Plumbing Solutions, Greg's Plumbing and Heating, PlumbWize, Guest Plumbing & HVAC and MDM Mechanical. Birnie has the deepest history, family owned since 1922, and the most reviews at 1,365. John The Plumber offers a 2-year warranty and same-day visits. Lakeview holds a perfect 5.0 across 285 reviews. Every company here has a working website, a real Hamilton address and at least 60 Google reviews.

  • Last reviewed September 2026
  • 10 companies reviewed · How We Rank

Our top 10 plumbing companies in Hamilton

Hamilton is a tough city on plumbing. Many houses in the lower city and on the older parts of the Mountain still have cast iron drains, clay or aging sewer laterals and, in some cases, lead water service lines, while newer homes and condos across the region were plumbed with Kitec or poly-B that insurers now ask about. Heavy rain can push the sewer system past capacity, which is why basement flooding and backwater valves come up so often here. We started from two Google Maps searches for plumbers in Hamilton and worked through the results in order. A large share of the listings were keyword-named pages such as Plumber Hamilton or Plumbing Services Hamilton with generic template websites, shortened links or no identifiable company behind them, and we left those out. We also skipped Toronto-based lead-generation networks with a Hamilton pin but no local presence. The ten that remain include century-old firms, owner-run shops and two larger regional companies with Hamilton branches, and the list covers the whole amalgamated city, including Stoney Creek, Ancaster and Dundas. Before hiring, check the plumber's licence. Plumbing is a compulsory trade in Ontario, so anyone doing plumbing work must hold a certificate of qualification or be a registered apprentice, and you can confirm a name through the Skilled Trades Ontario public register. Gas lines, gas water heaters and appliance hookups also require a TSSA-registered contractor and a licensed gas technician. Many jobs, including new drains, water heater relocations, backwater valves and sewer lateral work, need a plumbing permit from the City of Hamilton Building Division, so ask who will take it out. If you are adding a backwater valve or sump pump, ask about the City of Hamilton's Protective Plumbing Program before the work starts.

  1. John The Plumber

    Best warranty on everyday repairs4.7(527 Google reviews)38 Gledhill CrescentBest for Same-day repairs backed by a longer warranty    Rank01

    Why we picked them

    John The Plumber pairs 527 reviews at 4.7 with same-day service, sewer and drain equipment and a 2-year warranty on its plumbing work.

    What we like

    • 2-year plumbing warranty
    • Same-day visits
    • Full drain and sewer equipment

    Things to consider

    • Small jobs can feel pricey

    Services

    • Emergency plumbing
    • Drain cleaning
    • Water heater repair
    • Sewer line repair
    • Leak detection
    • Fixture installation

    Key details

    Best for
    Same-day repairs backed by a longer warranty
    Service area
    Hamilton
    Years in business
    20 years
    Warranty
    2-year plumbing warranty, per the company.
    Emergency service
    Available
    Financing
    Available
    Credentials
    Licensed and insured plumbers, per the company

  2. Birnie Plumbing and Drains

    Best for sewer and trenchless work4.6(1365 Google reviews)390 Lake Ave N Unit 1Best for Sewer lines, trenchless repair and big drain jobs    Rank02

    Why we picked them

    Birnie has served Hamilton since 1922, carries the most reviews here and offers trenchless sewer repair, pipe bursting and 24/7 emergency service.

    What we like

    • Family owned since 1922
    • Trenchless and sewer lining options
    • 1,365 reviews at 4.6

    Things to consider

    • Reports of missed appointments

    Services

    • Emergency plumbing
    • Drain cleaning
    • Water heater repair
    • Sewer line repair
    • Leak detection
    • Fixture installation

    Key details

    Best for
    Sewer lines, trenchless repair and big drain jobs
    Service area
    Hamilton
    Years in business
    104 years
    Warranty
    Written warranty on every job and a workmanship guarantee on installations, per the company.
    Emergency service
    Available
    Financing
    Available
    Credentials
    Licensed and insured plumbers, per the company

  3. Superior Plumbing & Heating of Hamilton

    Best for same-day water heater swaps4.9(89 Google reviews)337 Gage Ave N #12Best for Fast water heater swaps and well pump calls    Rank03

    Why we picked them

    Superior's Hamilton branch scores 4.9 on recent reviews, answers 24/7 and handles water heaters, well pumps and septic systems same day.

    What we like

    • 4.9 across 89 reviews
    • 24/7 service
    • Well pumps and septic

    Things to consider

    • Warranty of up to 90 days only

    Services

    • Emergency plumbing
    • Drain cleaning
    • Water heater repair
    • Leak detection
    • Fixture installation

    Key details

    Best for
    Fast water heater swaps and well pump calls
    Service area
    Hamilton
    Warranty
    Warranty of up to 90 days on services, per the company. Products carry the manufacturer's warranty.
    Emergency service
    Available
    Credentials
    Licensed plumbers, per the company

  4. Lakeview Plumbing Services

    Best rated by homeowners5.0(285 Google reviews)241 Fruitland Rd, Stoney CreekBest for Owner-level service on repairs and bathroom work    Rank04

    Why we picked them

    Lakeview holds a perfect 5.0 across 285 reviews that praise Mike's speed and fair pricing, and it includes a 1-year warranty at no charge.

    What we like

    • 5.0 across 285 reviews
    • 1-year warranty
    • Free phone quotes

    Things to consider

    • Built for repairs, not big sewer jobs

    Services

    • Emergency plumbing
    • Drain cleaning
    • Fixture installation

    Key details

    Best for
    Owner-level service on repairs and bathroom work
    Service area
    Hamilton
    Warranty
    1-year warranty free of charge, per the company.
    Emergency service
    Available
    Credentials
    Fully licensed and insured plumbers, per the company

  5. Flow Plumbing

    Best for renovations in older homes5.0(60 Google reviews)36 Albert StBest for Renovations, older homes and lead water services    Rank05

    Why we picked them

    Flow holds a perfect 5.0 across 60 reviews and brings renovation, sewer lateral and lead service experience suited to Hamilton's older homes.

    What we like

    • 5.0 across 60 reviews
    • Lead service removal
    • Renovation and custom home work

    Things to consider

    • No published warranty terms

    Services

    • Emergency plumbing
    • Repiping
    • Sewer line repair
    • Fixture installation

    Key details

    Best for
    Renovations, older homes and lead water services
    Service area
    Hamilton
    Emergency service
    Available
    Credentials
    Member, Hamilton-Halton Construction Association, per the company

  6. Hamilton Plumbing Solutions Inc

    Best for Kitec and poly-B replacement5.0(61 Google reviews)283 E 32nd StBest for Kitec replacement and landlord repairs    Rank06

    Why we picked them

    Hamilton Plumbing Solutions has a perfect 5.0 across 61 reviews, an experienced owner and a focus on Kitec and poly-B replacement.

    What we like

    • 5.0 across 61 reviews
    • Owner with 23 years in the trade
    • Kitec remediation

    Things to consider

    • Weekday hours only on Google

    Services

    • Emergency plumbing
    • Drain cleaning
    • Repiping
    • Sewer line repair
    • Leak detection
    • Fixture installation

    Key details

    Best for
    Kitec replacement and landlord repairs
    Service area
    Hamilton
    Years in business
    7 years
    Emergency service
    Available
    Credentials
    A+ rating with the Better Business Bureau, per the company

  7. Greg's Plumbing and Heating Inc.

    Best for plumbing plus gas and heating4.7(291 Google reviews)69 Bigwin Rd #1Best for Gas lines, commercial work and plumbing plus HVAC    Rank07

    Why we picked them

    Greg's handles plumbing, gas lines and heating under one roof, serves commercial clients, and earns 4.7 across 291 reviews for clear, upfront pricing.

    What we like

    • Plumbing, gas and HVAC together
    • Commercial backflow and grease traps
    • Upfront quotes

    Things to consider

    • No published warranty terms

    Services

    • Emergency plumbing
    • Drain cleaning
    • Water heater repair
    • Sewer line repair
    • Leak detection
    • Gas line work
    • Fixture installation

    Key details

    Best for
    Gas lines, commercial work and plumbing plus HVAC
    Service area
    Hamilton
    Years in business
    8 years
    Emergency service
    Available
    Credentials
    Licensed and insured plumbing and HVAC company, per the company

  8. PlumbWize

    Best for older-home leaks and drains4.8(129 Google reviews)46 Jackson St EBest for Kitec replacement and older-home leak repairs    Rank08

    Why we picked them

    PlumbWize is brother-owned, answers 24/7 and earns 4.8 across 129 reviews for leak, drain and Kitec work in older Hamilton homes.

    What we like

    • Brother-owned for 20+ years
    • 24/7 including holidays
    • Kitec replacement

    Things to consider

    • Large jobs billed hourly

    Services

    • Emergency plumbing
    • Drain cleaning
    • Repiping
    • Sewer line repair
    • Leak detection
    • Fixture installation

    Key details

    Best for
    Kitec replacement and older-home leak repairs
    Service area
    Hamilton
    Emergency service
    Available
    Credentials
    Licensed and insured plumbers, per the company

  9. Guest Plumbing & HVAC

    Best for tankless heaters and new builds4.8(503 Google reviews)50 Bittern St #8, AncasterBest for Tankless water heaters and new construction    Rank09

    Why we picked them

    Guest has 503 reviews at 4.8, a design-build focus with local builders and a strong record on tankless water heaters and gas hookups.

    What we like

    • 503 reviews at 4.8
    • Tankless heater installs
    • Financing available

    Things to consider

    • No published warranty terms

    Services

    • Emergency plumbing
    • Drain cleaning
    • Water heater repair
    • Gas line work
    • Fixture installation

    Key details

    Best for
    Tankless water heaters and new construction
    Service area
    Hamilton
    Emergency service
    Available
    Financing
    Available
    Credentials
    2016 Young Entrepreneur of the Year award, per the company

  10. MDM Mechanical

    Best for water heaters tied to boilers5.0(142 Google reviews)209 E 13th StBest for Tankless and indirect water heaters, boilers and gas    Rank10

    Why we picked them

    MDM holds a perfect 5.0 across 142 reviews for water heater, gas piping and boiler work led by Michael Mead.

    What we like

    • 5.0 across 142 reviews
    • Tankless and indirect heaters
    • Michael quotes and does the work

    Things to consider

    • Leans to heating over drains

    Services

    • Water heater repair
    • Gas line work
    • Fixture installation

    Key details

    Best for
    Tankless and indirect water heaters, boilers and gas
    Service area
    Hamilton
    Warranty
    100% satisfaction guarantee on all work, per the company.
    Financing
    Available
    Credentials
    Licensed and insured, per the company

Compare the top plumbing companies in Hamilton

Ranking position reflects our editorial review, not customer ratings.

Editorial comparison of the 10 ranked companies. Customer ratings, where shown, come from the source named on each company profile.
RankCompanyBest forKey servicesService areaGoogle ratingEmergencyProfile
01John The PlumberSame-day repairs backed by a longer warrantyEmergency plumbing, Drain cleaning, Water heater repairHamilton4.7 (527)YesView →
02Birnie Plumbing and DrainsSewer lines, trenchless repair and big drain jobsEmergency plumbing, Drain cleaning, Water heater repairHamilton4.6 (1365)YesView →
03Superior Plumbing & Heating of HamiltonFast water heater swaps and well pump callsEmergency plumbing, Drain cleaning, Water heater repairHamilton4.9 (89)YesView →
04Lakeview Plumbing ServicesOwner-level service on repairs and bathroom workEmergency plumbing, Drain cleaning, Fixture installationHamilton5.0 (285)YesView →
05Flow PlumbingRenovations, older homes and lead water servicesEmergency plumbing, Repiping, Sewer line repairHamilton5.0 (60)YesView →
06Hamilton Plumbing Solutions IncKitec replacement and landlord repairsEmergency plumbing, Drain cleaning, RepipingHamilton5.0 (61)YesView →
07Greg's Plumbing and Heating Inc.Gas lines, commercial work and plumbing plus HVACEmergency plumbing, Drain cleaning, Water heater repairHamilton4.7 (291)YesView →
08PlumbWizeKitec replacement and older-home leak repairsEmergency plumbing, Drain cleaning, RepipingHamilton4.8 (129)YesView →
09Guest Plumbing & HVACTankless water heaters and new constructionEmergency plumbing, Drain cleaning, Water heater repairHamilton4.8 (503)YesView →
10MDM MechanicalTankless and indirect water heaters, boilers and gasWater heater repair, Gas line work, Fixture installationHamilton5.0 (142)Not listedView →

Plumbing companies serving Hamilton and nearby areas

Most companies in this ranking work across Ontario and the surrounding suburbs. Coverage and travel fees vary, so confirm your address is inside the service area before scheduling.

  • Hamilton
  • Toronto
  • Mississauga
  • Etobicoke
  • Oakville
  • Burlington
  • Ancaster
  • Downtown Toronto
  • Dundas
  • Milton

Nearby rankings

Hamilton, Ontario

Service coverage across Hamilton. Individual company areas are listed on each profile.

How we chose the best plumbing companies in Hamilton

Read our full ranking methodology →

This list follows the order of the companies in two Google Maps searches for plumbers in Hamilton, Ontario, run September 24, 2026, after removing listings that failed our checks. We skipped keyword-named listings with template or placeholder websites, companies based outside Hamilton with no local presence, sites with inconsistent claims, and listings below a 4.5 rating. Each company kept had a working website, a Hamilton address and at least 60 Google reviews. Ratings and review counts were read the same day. Company claims such as founding years, warranties and awards come from their own websites and are marked as reported, not verified. No company paid to be included.

How to choose a plumber in Hamilton

  • Verify insurance and credentials

    Ask for a current certificate of insurance and confirm registration or licensing with the authority that issues it, not with the company.

  • Ask for a written estimate

    Scope, materials, removal, disposal and who pulls the permit should all be named on the page rather than agreed on the doorstep.

  • Compare multiple quotes

    Two or three bids on the same scope. A number far below the others usually means something has been left out of it.

  • Understand the warranty

    Separate the manufacturer's warranty on materials from the company's own warranty on the work, and get both in writing.

  • Ask who performs the work

    Find out whether the crew are employees or subcontractors, and who supervises them on the day.

  • Check recent local projects

    Ask for addresses or photographs of comparable jobs finished nearby in the last year or two.

  • Avoid high-pressure sales

    A discount that expires today, or a knock on the door after a storm, is a reason to slow down rather than sign.

  • Get everything in writing

    Change orders, timeline and payment schedule included, before the first payment changes hands.

Questions to ask before hiring

  • Are you insured, and can you send the certificate?
  • How long have you worked in this area?
  • Will you provide a written estimate with materials listed?
  • What warranty do you offer on the work itself?
  • Do you use subcontractors for this job?
  • Who handles permits and inspection?
  • What would you recommend here, and why?
  • How are unexpected costs handled once work starts?
  • What is the estimated timeline from start to finish?
  • Can you provide recent local references?

Red flags

  • No verifiable local business address or registration
  • Pressure to sign on the first visit
  • A demand for full payment up front
  • An offer to cover or waive your insurance deductible
  • Refusal to put warranty terms in writing
  • A quote that will not itemize scope

Related home services in Hamilton

Plumbing guides for Hamilton homeowners

Plumbing companies in Hamilton FAQs

  • How do I check that a Hamilton plumber is licensed?

    Plumbing is a compulsory trade in Ontario, so the person doing the work needs a certificate of qualification or must be a registered apprentice. You can search a name on the Skilled Trades Ontario public register. For gas lines and gas water heaters, also ask for the company's TSSA registration.

  • Do I need a permit for plumbing work in Hamilton?

    Often, yes. New drains, relocated fixtures, backwater valves and sewer lateral work usually need a plumbing permit from the City of Hamilton Building Division. Ask your plumber who will take it out before the job starts.

  • Which Hamilton plumbers offer the longest warranty?

    On this list, John The Plumber publishes a 2-year plumbing warranty and Lakeview Plumbing Services includes a 1-year warranty at no charge. Birnie says every job carries a written warranty but does not publish its length. Superior offers up to 90 days. Several others do not publish terms, so ask in writing.

About this ranking

Originally published
September 2026
Last reviewed
September 2026
Companies evaluated
10

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