Great Lakes Mechanical

Great
Lakes Mechanical

Plumbing • Heating • Air Conditioning

Providing reliable plumbing, heating, and AC solutions and exceptional service for homes and businesses in Southwestern Ontario for over 30 years. Contact our team of professionals today.

519-525-6080

Proudly Serving Southwestern Ontario Residence And Businesses Since 1993

A Trusted Name For 30 years

Choose the experienced professionals at Great Lakes Mechanical to handle all your plumbing, heating, and air conditioning requirements. Previously John Herman Plumbing And Heating, we’ve kept the standard you’ve come to trust and bolstered the business with a fresh new look, new name, and an enhanced service offering.

With over 30 years of experience in plumbing and heating and cooling services, our team of experts are here to help. Whether it’s a complex issue or one that just needs a quick fix, we’ll help provide reliable solutions at a great price.

Plumbing Services

Drain Cleaning
& Repairs

Drain Cleaning & Repairs

01

Our plumbers can assist you with water drainage problems, whether you are having difficulty getting your shower to drain, have a stubborn clogged toilet, or dealing with an obstructed sink.

Plumbing
Inspections

Plumbing Inspections

02

We inspect every element of your plumbing system to analyze installation errors with your piping, water meter, or other plumbing equipment.

Residential
Plumbing

Residential Plumbing

03

We service any issues you could experience in your home, including gas line repair and install, ventilation, storm drainage, and water distribution piping systems and more.

04

From minor maintenance or repairs or complete equipment replacements, we work quickly to resolve the issue to minimize disruptions to your business.

Industrial
Plumbing

Industrial Plumbing

05

We upgrade plumbing systems and equipment, add new line installations, and perform emergency repairs to minimize damage and limit downtime.

Farm & Agricultural Plumbing

Farm & Agricultural Plumbing

06

We are experienced with the unique challenges of agricultural plumbing and can help with well and water pumps, water filtration, livestock watering systems and more.

Water Treatment
Systems

Water Treatment Systems

07

We offer a variety of water treatment options including water softeners and water purification and filtration systems.

Have An Emergency?

If you need help with a toilet, clogged drain, or broken water heater, we offer affordable emergency services that are just a call away!

Heating & Air Conditioning Services

Furnaces

Furnaces

01

The majority of Canadian homes rely on a central air furnace to provide them with heat. We perform repairs and maintenance as well as new installs. Don’t get caught out in the cold – call us today.

Air Conditioners

Air Conditioners

02

Escape the heat and experience true comfort this summer with an air conditioning unit that performs consistently while costing you as little as possible. Call us for more details.

Boilers, Water Heaters
& Gas Lines

Boilers, Water Heaters & Gas Lines

03

Whether you need new boiler, hot water heater, an emergency repair or you are upgrading your home and looking for new line installations, we can help.

In-Floor Heating

In-Floor Heating

04

We install hydronic floor heating systems, which uses a water boiler connected to a series of tubes that run beneath your floor to heat your home.

Can’t say enough about this crew. Great guys – really got the sense they were giving me the same information they would use to make decisions for their own homes. On top of that, got the job done well and quickly, and everything is great. Will definitely be using them for future work (already had Roddy back to advise on the next project.) In short, highly recommend!

Have A Job Request For us?

Can’t say enough about this crew. Great guys – really got the sense they were giving me the same information they would use to make decisions for their own homes. On top of that, got the job done well and quickly, and everything is great. Will definitely be using them for future work (already had Roddy back to advise on the next project.) In short, highly recommend!

After contacting them for an on-demand heater issue at our Bayfield cottage, Roddy got back to my appointment request very quickly. He gave us a next day service call and offered two quotes for the purchase and installation of a new water heater. Originally scheduled in two weeks, but called us with news that he was able to get us in earlier. We trusted him with the key to our cottage, as we live in London. Roddy did a great job installing and did clean work. He went above and beyond replacing a shower control valve of our bathtub and sealing gaps in our chimney well and pipe joint from our roof. I got to meet him while at my cottage and he was very nice, polite, respectful and I recommend his work and this company 100%. He’s our new go to guy for plumbing.

I contacted John Herman Plumbing about installing a sump pump at our cottage. We live a couple of hours away so couldn’t be there to discuss the logistics after an initial meeting to confirm what was needed. Despite that the service appt was easy to setup and coordinate. Work was done on the day agreed to. Photos and video were provided of the work in progress and of the completed project. I was very impressed with the whole process. More contractors need to work this way.