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Business ProfileVerifiedPlumbers in Nanaimo, British Columbia

JWN Mechanical Inc.

Listed in Nanaimo 57 reviews(250) 797-4273

JWN Mechanical is a Nanaimo plumbing company led by Jost, its owner and operator. It serves residential and light commercial properties, with Poly-B replacement and repiping among its core services.

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Business Highlights
  • Jost is a Red Seal-certified plumber and a fourth-generation craftsman.
  • The company describes its technicians as licensed and insured.

Service Area

Nanaimo, Lantzville, Ladysmith, Nanoose Bay and Parksville.

Public local listing. JWN Mechanical Inc. is one of 11 plumbers ProsGrade lists in Nanaimo, British Columbia.

Listing details

6 services listed, including Emergency plumbing, Poly-B replacement and repiping and Water main repair and replacement. Open 24 hours, 7 days a week. 57 reviews.

  • Verified listing details
  • Service information
  • Customer review signals
  • Photo gallery
  • Public contact information
  • Published local profile

How This Business Compares

How JWN Mechanical Inc. compares with the other 10 plumbers on ProsGrade in Nanaimo, using public Google ratings and review counts.

  • Ranks in the top half of the 11 Nanaimo plumbers on ProsGrade by Google rating and review volume.

Services Covered

6 services
  • Emergency plumbingBurst pipes, major water leaks, sewer backups, no running water and overflowing fixtures.
  • Poly-B replacement and repipingPEX replacement using efficient routing methods.
  • Water main repair and replacementDiagnostics, repairs and full system replacement.
  • Boiler installation and upgradesNew systems, replacements and high-efficiency upgrades.
  • In-floor heating installation and serviceHydronic water-based and electric radiant systems.
  • Leak detection and pipe repairs

Reviews

What customers say

Customers praise Jost's responsiveness. One customer says he completed the work within the quoted amount and cleaned up afterward; another appreciated his creative planning during a challenging Poly-B replacement and ensuite replumb.

Customer Reviews

Joanne Galloway

We were fortunate to have hired Jost, of JWN Mechanical, to carry out the challenging job of replacing all the Poly-B pipes in our home. In addition he has now replumbed our ensuite bathroom, to accommodate a complete renovation. Jost was not only creative in his planning of the many tasks involved, but he was also professional and responsive to our needs. It was a pleasure to have him do the work. We most definitely would recommend Jost & JWN Mechanical to any homeowner who is requiring plumbing work.
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Carla McBeth

We are extremely happy with Jost's work. He replaced the PolyB in our newly purchased rancher in Parksville. He was efficient, detailed, and very responsive. He's also very supportive of his industry colleagues. We are new to the area and he was quick to recommend other businesses that would assist us with our renovations. I would happily recommend him as your "go-to" plumber!
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Kim Johnson

January 3, 2026 ??Fast Arrival and installation ??Quality Craftmanship ??Fair Pricing Our bathrooms are really tiny, so having the right size toilet really matters. We had a toilet in our furnace room that finally we decided to have installed. It was down there for years, as we called another plumber and he told us how to install it ourselves. Well, my husband finally decided to get it out, and we called Jost at JWM Mechanical, and he set a date for the next week, days before Christmas to get it done. Within an afternoon, a few hours because the flange was broken, it took longer but it was really a good job he did. It works perfectly, and it was a dual flusher we found out. So we also decided to replace our other 2 toilets which are in really tiny bathrooms, and I was really so glad Jost recommended to me to go to EMCO, and look at their selection of toilets, as I looked in Home Depot and Reno and didn’t find what I wanted. I chose the elongated compact one piece, which is so compact and really fits well in those tiny bathrooms, where we had the round front style before. They both were perfect. Jost also gave us a discount on the 2 toilets from EMCO. It actually gives us more space, we can actually open the cabinet drawers now for both bathrooms. And they both look really great. The downstairs toilet is really awesome, and elongated is especially needed, as well as the flushing is whisper quiet, and a different flushing system altogether. The old one ran on and on. So thanks for all your work you did, especially getting the one pieces fitting nicely around the hose line coming out of the floor and adjusting one of the hose lines out of the way slightly so I could install these type of toilets. Kim
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Frequently Asked Questions

How does JWN Mechanical handle Poly-B replacement?

The replacement plan is developed to minimize wall openings and disruption, and the system is pressure-tested. The company can also coordinate or advise on drywall and finishing restoration if required.

How long do JWN Mechanical's Poly-B replacement projects take?

Most residential projects are completed within 2–5 days, depending on size and complexity.

Does JWN Mechanical repair boilers?

No. It focuses on boiler installation, not repair.