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Find Water heater repair or service pros in O Fallon

Avatar for Anton's Plumbing, Heating/Cooling & Energy Experts
Anton's Plumbing, Heating/Cooling & Energy Experts
4.8(
460
)

Serving O Fallon, MO and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1979

Free estimates

Emergency services offered

"Steve arrived on time, quickly diagnosed the problem with the water heater, gave me options to fix/replace without trying to steer me to one option or the other, and answered my questions. I opted for replacement and he got the appointment set up for the next day so we wouldn't be without hot water any longer than necessary."
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+18

Response time1 day
Response rate86%
12 neighbors recently requested a quote
Avatar for Hosack Plumbing Heating & Cooling
Hosack Plumbing Heating & Cooling
4.9(
320
)

Serving O Fallon, MO and surrounding areas

Approved

In business since 2009

Warranties offered

Credit card accepted

"It started off bad because I had the water heater installed, submitted my paperwork for my rebate for the installation and then my rebate ended up not getting honored because the water heater that was installed didn't qualify for Spire's rebate. Turn's out that the water heater that would fit my location as well as satisfy Spire's rebate, I would have had to wait 5 to 6 weeks for that specific water heater so, the owner of Hosack's Plumbing cut me a check for the amount of the rebate and the amount over time that the new water heater would have saved me. Not the perfect situation but, that was a win win for me as well as Hosack's Plumbing because a good water heater was installed just not one that would quite fit the Spire requirements for the rebate! Hence we didn't need to take a brand new water heater out and replace it with another water heater that was just .05 UEF Higher!"
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+2

Response time6 days
12 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Dunn Plumbing, Heating and Air Conditioning / Dunn One Hour Heating and Air Cond
Dunn Plumbing, Heating and Air Conditioning / Dunn One Hour Heating and Air Cond
4.7(
256
)

Serving O Fallon, MO and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"I needed to replace my parents' 40 year old AC Condenser and coil, and replace it with something that worked with the new furnace my father got installed four years prior. They were able to do the work requested, and also offered to redo the furance installation as the previous company installed it right on the basement floor where any backup/water could possibly get into the system. They were very prompt and showed up on time/on schedule. They were very upfront about costs and pricing and there were no last-minute price changes or hidden fees, which I appreciate. Work was done well and they ensured that everything worked before leaving the job site. The gentlemen working were very professional and understanding. I highly recommend them for anyone looking to replace their HVAC or to correct work that was previously poorly done. "
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Response time2 days
27 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Ambassador Plumbing L.L.C
Ambassador Plumbing L.L.C
5.0(
36
)

Serving O Fallon, MO and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Gave a bid at 8 AM and came back with a 40 Gal. water heater 2 hrs. later. Did the work and my renter had hot water in about 35 minutes. Good job. They have got my business. Thanks."
Response time1 day
Response rate99%
Recommended by100%of homeowners
Avatar for Roto-Rooter Plumbing & Water Cleanup
Roto-Rooter Plumbing & Water Cleanup
4.5(
965
)

Serving O Fallon, MO and surrounding areas

Approved (Corporate)

In business since 1935

Free estimates

Emergency services offered

"well the person Antoine the person that gave us the estimate was very pushy to get us to have them do the work and promised us a number of things that roto rooter does not do, such as promise plastic bins for storing goods in the basement, that our insurance company would include the cost of clearing the line to go toward our deductible which is not covered. that the cleaners would put things back after the clean up and that any items that the insurance company need to see for property damage they would dispose of the items after the adjuster came and they do not take and dispose. the person Terry that cleared the line was professional and did a great job. The restoration men mike and ahmed were nice but on Jan 4th Mike told us he was in a meeting and would be here about 10am and did not show so I called him at or about 1130a for him to be aggravated that I was following up and said would be here by 12p only to show up about 1-130p and when they left they didn't tell us goodbye or when they would return and left the basement a mess sorry but no photos. On sunday 6Jan Mike came by to review job and get moisture readings and when I told him the experience we had with the restoration team told me he was embarrassed by the way they left the job and the condition it was in. I mentioned to Mike that I did not like that no supervisor was available for me to talk with and even Mike didn't want to take responsibility for being their supervisor until I pointed out to him that he had told me he was the supervisor. I was ready to plug my dehumidifier back in only to find that they broke a hose that was attached to the water reservoir so that it could drain so now I have to replace it. Overall I would say I will never use them again for restoration work as they have been very unsatisfactory to me and my wife. VERY UNSATISFACTORY!!!!!"
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+4

Response time11 hrs
8 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Roto-Rooter Plumbing & Water Cleanup - St. Louis
Roto-Rooter Plumbing & Water Cleanup - St. Louis
4.6(
1,785
)

Serving O Fallon, MO and surrounding areas

Approved (Corporate)

In business since 1935

Free estimates

Emergency services offered

When you need an emergency plumber in St. Louis, or a drain cleaner, call Roto-Rooter Plumbing & Water Cleanup. Your fast & reliable plumber can fix any plumbing problem, including sump pumps, toilet repair, faucet repair, faucet replacement, garbage disposals, water heaters, bathtubs, showers, and outside faucets. Roto-Rooter is best known for drain cleaning & sewer cleaning. We fix drain clogs, clogged toilets or sinks, blockage of main sewer lines, slow draining shower and bathtub drains, sewer lines and leaking or burst pipes. We also specialize in water damage restoration & water cleanup services. We can fix and clean up your flooded basement too. Roto-Rooter is a 24-hour plumber near you and provides emergency service.

Roto Rooter- St. Louis
Roto Rooter- St. Louis
Roto Rooter- St. Louis
Roto Rooter- St. Louis
Roto Rooter- St. Louis

+1

36 neighbors recently requested a quote
Recommended by87%of homeowners
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FAQs for water heater repair or service projects in O Fallon, MO

Warning signs include fluctuating water temperatures, a pilot light that repeatedly goes out, unusual noises from the tank, or complete heating failure. You might also detect a rotten egg smell, indicating a potential gas leak, or notice water that never reaches the proper temperature. If your water heater is over eight years old and displaying these symptoms, the gas valve is a likely culprit. Professional inspection is recommended, especially if gas odors are present.

Water heater gas valves are not universally interchangeable. Each valve must match your specific water heater's make, model, and specifications. Important compatibility factors include gas type (natural gas vs. propane), BTU rating, connection types, and physical dimensions. Using an incorrect valve can result in poor performance, premature failure, or dangerous gas leaks. Always consult your water heater's documentation or a professional plumber to identify the appropriate replacement valve for your unit.

The O Fallon, MO homeowners’ guide to water heater repair or services

From average costs to expert advice, get all the answers you need to get your job done.