Top 5 Plumbers
in Thunder Bay
We compared 5 Plumbers serving Thunder Bay, Ontario using publicly available business information, including customer reputation, local presence and documented services. Across the businesses featured here, documented specialties include Furnace installation and repair, Air-conditioner installation and repair, and Heat-pump systems.
↘ Thunder Bay’s featured plumbers have a FiveBest Score below the Ontario benchmark.
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For Thunder Bay plumbing needs, the branch documents residential repairs, drain clearing, fixture work, sump-pump service and plumbing installations.
Furnace installation and repair · Air-conditioner installation and repair · Heat-pump systems
D.Peppard Mechanical Inc. documents plumbing-related water-heater work in Thunder Bay, including assessment and installation of gas or electric units, repairs to thermostats, heating elements and valves, and maintenance. The company also lists gas piping installation and gas leak detection for hot-water equipment and gas-line needs.
Water heater installation · Water heater repairs · Water heater maintenance
Robert’s Plumbing & Sheet Metal Co operates from Secord Street in Thunder Bay and documents drain unclogging, plumbing installations and repairs, and backflow prevention systems. Its listed plumbing work also includes renovation-related installations, making it relevant for both repair calls and planned plumbing updates.
Drain unclogging · Plumbing installation · Plumbing repairs
Clow Darling Limited operates a plumbing department from its Cameron Street address in Thunder Bay, handling commercial and residential plumbing work. Documented offerings include drain clearing and inspection, repairs to faucets, toilets and leaking pipes, frozen-pipe thawing, and water-heater repairs or replacement; the company also advertises 24/7 emergency response.
Drain clearing and inspection · Leaking pipe repairs · Frozen pipe thawing
A.Villeneuve Mechanical documents residential, commercial and industrial plumbing from its Thunder Bay location on Harold Crescent. Its residential offering includes pinhole water-pipe leak repair, hot-water heating and boiler maintenance, home water filtration, plumbing for renovations and new builds, plus 24-hour service and repair.
Pinhole water-pipe leak repair · Boiler maintenance · In-floor heating
Thunder Bay plumbers score below the Ontario benchmark
Featured plumbers in Thunder Bay have a median FiveBest Score™ of 67/100, compared with 80/100 for featured plumbers across Ontario.
Comparison based on profiles currently featured by FiveBest in this category with an available FiveBest Score™.
How we researched Plumbers in Thunder Bay
FiveBest reviews publicly available information for Plumbers serving Thunder Bay.
- Google rating and review history
- Documented services
- Years in business when available
- Thunder Bay and surrounding service coverage
- Business website and online presence
- Independent reputation signals when available
Research last updated: September 2026
Typical Service Price Ranges
Price ranges are based on typical industry averages. Actual costs may vary depending on the scope of work, materials, labour, property characteristics and local market conditions.
- Service call $120–$250
- Drain cleaning $180–$450
- Toilet install / replacement $250–$650
- Water heater installation $1,200–$3,500
- Emergency plumbing $180–$350/hr
Common Services
- Emergency plumber in Thunder Bay
- Drain cleaning in Thunder Bay
- Clogged drain repair in Thunder Bay
- Water heater repair in Thunder Bay
- Water heater installation in Thunder Bay
- Sewer line repair in Thunder Bay
How to Choose a plumber in Thunder Bay
Compare plumbers in Thunder Bay for emergency plumbing, clogged drain cleaning, sewer line repair, water heater installation and repair, leak detection, burst pipe repair, sump pump service, toilet repair and residential or commercial plumbing. FiveBest helps users compare selected local plumbing companies in one place.
Compare selected plumbers in Thunder Bay for emergency plumbing, drain cleaning, water heater repair, leak detection, sewer work, sump pumps and pipe repairs.
Ask what is causing the leak, blockage, pressure issue or equipment failure before approving major replacement.
Confirm the plumber or contractor meets licensing requirements that apply to the work and location.
Confirm labour, materials, fixtures, diagnostic charges and emergency or after-hours fees.
For larger alterations or replacements, ask whether permits or inspections are required and who handles them.
For fixtures, pumps or water heaters, confirm model, capacity, efficiency, warranty and installation requirements.
Confirm workmanship and product warranties plus what happens if the issue returns after service.
What Affects Plumbing Costs
- Type of plumbing problem
- Diagnostic time
- Accessibility
- Pipe or fixture materials
- Drain blockage severity
- Equipment or fixture replacement
- Permits and inspections
- Emergency or after-hours service
- Water damage or related repairs
Questions to Ask a Plumber
- What is causing the plumbing problem?
- Does the quote include labour, materials and diagnostic charges?
- Are permits or inspections required?
- What fixture, pipe or equipment specifications are included?
- Are there alternatives to full replacement?
- What workmanship and product warranties apply?
- Are emergency or after-hours fees different?
- How will the work area be protected and cleaned?
Frequently Asked Questions
Plumbing costs in Thunder Bay vary according to the service, urgency, labour time, required materials and accessibility of the problem. Emergency calls, sewer repairs and major pipe work generally cost more than routine fixture repairs.
Many plumbing companies offer emergency service for burst pipes, major leaks, sewer backups, overflowing fixtures and loss of water. Availability and after-hours rates should be confirmed directly.
Plumbers and drain-cleaning companies can inspect and clear clogged sinks, toilets, showers, floor drains and main sewer lines using tools appropriate to the location and severity of the blockage.
Many plumbers diagnose water-heater problems, replace components and install new tank or tankless systems. Ask whether the company services your fuel type and particular model.
Call promptly when a leak is active, recurring, hidden behind a wall, affecting water pressure or causing stains, mould, damage or unusually high water use.
Compare licensing where applicable, insurance, experience with the specific problem, written estimates, emergency availability, warranties, service area and recent customer reviews.