Water Heater Repair in Ontario, California
Accurate Repairs Begin with the Right Diagnosis
Similar symptoms can stem from different component failures. At Scott McLeod Plumbing, we inspect the unit and explain what needs attention before beginning the repair.
We service electric, gas, tankless, and hybrid heat pump water heaters. We also install and repair traditional tank and tankless units throughout Ontario, California.
Our repair capabilities include:
- Electric components: Heating elements and thermostats
- Gas components: Gas control valves and thermocouples
- Tankless components: Heat exchangers and related controls
- Tank components: Anode rods and temperature and pressure relief valves, also called T&P valves
Call (909) 346-2737 to request service and arrange an inspection.
Licensed, Factory-Trained Technicians Serving Ontario, California
We have served the region since 1980 as a family-owned plumbing business with residential and commercial plumbers. Our factory-trained technicians are licensed and insured, with the technical knowledge to diagnose and repair each system.
We hold an A+ rating with the Better Business Bureau, and completed repairs come with our one-year craftsmanship guarantee.
When to Repair or Replace Your Water Heater
Water heater repairs are often worthwhile when the unit is relatively new and the problem involves a single component. Common issues include:
- Electric water heaters: A failed heating element that prevents the unit from heating water.
- Gas water heaters: A faulty thermocouple that prevents the pilot light from staying lit.
Traditional tank water heaters typically last 8–12 years, depending on maintenance and overall condition.
Replacement may be the better option when:
- The tank is leaking.
- The unit is nearing the end of its service life.
- Repairs are becoming frequent or costly.
A leaking tank generally requires replacement rather than a component repair.
Choosing a Replacement Water Heater
If replacement is necessary, we can help you compare traditional tank and tankless water heaters. Tank models store heated water, while tankless systems heat water on demand as it flows through the unit. The right choice depends on your household's hot water needs, budget, and installation requirements.
Protecting Ontario, California Systems from Scale & Seismic Movement
Mineral-heavy water in the Ontario, California area can leave scale inside hot water systems. In a tankless heat exchanger, that buildup can restrict flow and interfere with heat transfer. We address these conditions through routine flushing and descaling, including descaling tankless heat exchangers when needed.
Residential water heaters in California are also subject to earthquake strapping rules. California Health and Safety Code Section 19211 requires new, replacement, and existing residential units to be braced, anchored, or strapped against falling or horizontal movement during an earthquake.
When a California property with a water heater is sold, the seller must certify in writing that the unit has been strapped, anchored, or braced as required. We account for visible earthquake strapping when evaluating a residential system.
Join our growing plumbing team and be part of a company that values teamwork, craftsmanship, and community.
5-Star Service, Proven Every Day
See why our commitment to quality earns lasting relationships.
-
“Heads-up Rancho Cuc residents! I was a first-time customer of Scott McLeod Plumbing this week, and had the good fortune of being assigned to Joseph Alarcon. What a blessing he is....very professional, kind, efficient, and knows what he is doing. He even cleaned up the work area after completion! I was extremely satisfied with the services.”Judy M.
-
“Glad I reached out to these guys when a family friend needed help with plumbing issues that had them shutting off their water and heating water just to shower. These guys were prompt and thorough, and about $1K cheaper than another local shop (not naming names, but shame on you, we thought you’d be better). Funny enough, this company is also family-owned, just more modernized and organized, which is a huge plus!”Monica G.
-
“Dylan and Michael, two plumbers of McLeod plumbing came to my house and redid the plumbing in my shower bathtub. They were polite. They were efficient. They were very very tidy and I enjoyed meeting them both and I was extremely pleased with their work.”Jean D.
-
“Contacted Scott McLeod after my Insurance sent out some bozos who quoted me $6000 to include jackhammering my floor and my shower. Scott McLeod plumbers came out, found the problem which was minimal and required no jackhammering. They were clean and professional, and I would use them again in a heartbeat Thank you for an honest job well done. I appreciate the service and would recommend to anyone. Very friendly from the time of a phone call till the service was completed. Definitely will use again. Eli was awesome.”Marlene S.
-
“I needed my mom’s garbage disposal fixed for the holidays. Peter and his associate came, and really did their due diligence. They examined everything, helped me look at prices, and overall were just kind and helpful.”Wyatt L.
-
“After completing service they made themselves available to answer other plumbing issues I had throughout the house. They spent time walking to other issues and helped troubleshoot those issues.”Ivan C.
-
“We had an issue with the plumbing in our master bathroom develop over the weekend. This had a sudden onset and very odd pattern. On Monday AM we called Scott McLeod Plumbing and to my surprise, they were able to send out a team a few hours later. Based on our description of what was happening, and his inspection of a few things, Teddy deduced immediately what the most likely problem was and explained to us the sequence of events that caused our problem. It was so logical and was communicated to us so clearly that we immediately felt complete trust in the solution he proposed. He was very obviously a complete expert. The cost proposal for all the work was very reasonable. He and his assistant spent the rest of the day solving our problems. It was such a pleasure having two such lovely people take care of our issues. I have used another top-rated local plumbing company in the past and although they did good work, I felt like their pricing was very high.”Happy Customer
-
“Scott McLeod Plumbing showed up in my time of need and truly saved the day. They were helpful, reassuring, and professional during a very challenging situation. I had previously worked with another plumbing company that left me uncomfortable with some questionable accounting practices, but Scott McLeod Plumbing completely restored my faith in both honest and quality service. From start to finish, everyone who worked on our project—Teddy, Peter, and Michael—was pleasant, professional, and respectful of our home, including our landscaping. They completed the job quickly, which was especially important since it was a time-sensitive repair, and their attention to detail and care were exceptional. I am so grateful for their expertise and kindness. Thank you, Scott McLeod Plumbing, for turning a stressful experience into a positive one.”Vera N.
-
“We are very pleased with the work that Brandon did replacing our toilet. The entire process of working with him was easy and pleasant. He was prompt, informative, polite, and respectful. Their pricing was also more reasonable than the other quote we got.”Pat N.
What to Expect During a Repair Visit
We begin with a thorough inspection of the components responsible for heating and safe operation. We then explain the problem in plain English so you understand the recommended work.
A typical service visit includes:
- Inspecting thermostats, electrical heating components, gas valves, and safety relief systems
- Protecting flooring and walls around the work area
- Completing repairs with manufacturer-approved parts
- Testing the system after the repair
Our service trucks carry a wide range of parts to support same-visit completion. Many common repairs, including thermocouple or electric element replacement, can be completed within a few hours, depending on the unit and the problem.
Get Prompt Water Heater Service in Ontario, California
We offer same-day service and accept free estimate requests for water heater work. For critical failures, our team is available 24/7 and promises a response within one hour for urgent emergency calls.
Competitive pricing, financing options, and payment plans are available, and we provide service in Spanish. Estimate requests submitted through our contact form can include details about your system and the problem you’re experiencing.
Call (909) 346-2737 for Ontario, CA water heater repair and a clear diagnosis.
Our FAQs walk you through our process, services, and what makes working with our team stress-free.
Your Local Plumbing Experts Across Southern California
Delivering dependable residential and commercial plumbing throughout the Inland Empire and surrounding areas.
- Azusa
- Bloomington
- Chino
- Chino Hills
- City of Industry
- Claremont
- Colton
- Corona
- Covina
- Diamond Bar
- Eastvale
- El Monte
- Fontana
- Glendora
- Hacienda Heights
- Jurupa Valley
- La Habra
- La Puente
- La Verne
- Montclair
- Norco
- Ontario
- Pomona
- Rancho Cucamonga
- Redlands
- Rialto
- Riverside
- Rowland Heights
- San Bernadino
- San Dimas
- Upland
- Walnut
- West Covina
- Yorba Linda