McHenry Heating has been our go to company for over 15 years, and we have always been happy with their work and products! They installed our furnace and air, and we used the plumbing service when the gas company found a small leak. Same day service.<br>Jeremy is our Heating and air technician, and he also services our on demand Water Heater. Great guy and excellent at his job!! Love this Company!
Home comfort, handled
Water Heater Repair & Installation
Hot-water trouble may come from controls, heating components, venting, scale, leakage or system sizing. Diagnosis keeps the solution focused.

637 reviews
What we handle
Service built around the cause—not just the symptom.
Tank and tankless water-heater service for reliable hot water and safe operation.
Tank water-heater repair
Tankless service and installation
Replacement sizing and options
Venting, piping and startup checks
The McHenry method
Diagnose carefully. Explain clearly. Verify completely.
Measure before recommendingPerformance, safety and system conditions establish what is actually happening.
Make the tradeoffs visibleWhen more than one path makes sense, you should understand the cost, life and comfort implications.
Test the completed workThe repair or installation is checked in operation, then reviewed with the homeowner.
Straight answers
Common questions about water heater repair & installation.
Every home and system is different. These answers help you prepare; an on-site diagnosis confirms the right next step.
Ask another questionDo you work on tankless water heaters?
Yes. Tankless water-heater service and installation are among the company’s verified plumbing capabilities.
Should a leaking tank be repaired?
A leaking tank itself usually requires replacement, while leaks at connected valves or piping may be repairable.
What size water heater do I need?
Household demand, fixture use, fuel source and recovery rate all matter. Tankless sizing also depends on temperature rise and simultaneous flow.
Verified Google reviews
What local homeowners say about water heater repair & installation
Twenty real, non-repeating Google reviews selected for this plumbing slider.
We called McHenry Plumbing on Friday to get an estimate to repair the hot water heater issue and discussed the situation with them. Based on the quote we received and age of the unit we decided to replace it. They scheduled us on Monday. The two plumbers arrived when scheduled and were professional and pleasant and were finished in about 2.5-3 hours. I would recommend this company and will use them in the future if we need their services.
Excellent service! Our sump pump went out and we had water in the basement, McHenry Plumbing (Heating & Air) sent Butch over asap. I can't say enough about Butch, he was excellent! He took the time to explain everything to me, such a nice guy, very professional and great to work with! Thanks so much!
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