Tankless Water Heater Services

Upgrade to a Tankless Water Heater for Endless Hot Water on Demand

Are you tired of running out of hot water? A tankless water heater provides endless, energy-efficient hot water on demand, making it a great alternative to traditional water heaters. At Dor-Mart, we specialize in tankless water heater installation, repair, and maintenance, helping homeowners switch to modern, energy-saving solutions.

 

How Do Tankless Water Heaters Work?

Unlike traditional hot water tanks that store and constantly heat water, tankless water heaters work on demand. This means they only heat water when needed, reducing standby energy loss and cutting utility bills. Here’s how they operate:

  1. Water enters the unit when a hot water tap is turned on.
  2. A gas burner or electric heating element instantly heats the water as it flows through the unit.
  3. Hot water is delivered directly to your faucets or appliances, without the need for a storage tank.

 

Benefits of a Tankless Water Heater

1. Endless Hot Water

Since a tankless system heats water on demand, you’ll never run out of hot water, even during back-to-back showers or while running multiple appliances.

2. Lower Energy Bills

Tankless water heaters use up to 30% less energy than traditional storage tanks because they don’t keep heating unused water. This can result in significant savings on your utility bills.

3. Longer Lifespan

A traditional water heater lasts 10-15 years, while a tankless water heater can last 20+ years with proper maintenance, making it a long-term investment.

4. Space-Saving Design

Tankless units are compact and wall-mounted, freeing up valuable space in your utility room, basement, or even outdoors.

5. Eco-Friendly Solution

By using less energy and reducing carbon emissions, a tankless water heater is a more sustainable option for homeowners looking to lower their environmental footprint.

 

Tankless Water Heater Installation Services

Upgrading to a tankless water heater requires expert installation to ensure optimal performance. Our professional installation process includes:

  1. System Evaluation – We assess your home’s water usage needs and recommend the right-sized unit.
  2. Professional Installation – Our certified plumbers safely install your tankless system, ensuring all gas, electrical, and plumbing connections are secure.
  3. Performance Testing – We verify that your unit is functioning efficiently and providing hot water on demand.
  4. Customer Education – We walk you through how to operate and maintain your new tankless water heater.

 

Tankless Water Heater Repair Services

Even the best tankless water heaters may experience issues over time. Common problems include:

  • Fluctuating water temperature – Often caused by mineral buildup or improper gas flow.
  • Ignition failure – Could be due to a faulty burner, gas supply issue, or dirty sensors.
  • Low water pressure – May be related to clogged filters or plumbing restrictions.
  • Error codes on display – Tankless units have digital displays that indicate problems; our technicians can diagnose and fix any error codes.

If your system isn’t working as expected, our experienced plumbers can troubleshoot and repair your tankless water heater quickly and efficiently.

Routine Maintenance for Tankless Water Heaters

Regular maintenance ensures your tankless unit operates efficiently and lasts for years to come. Our Home Comfort Membership includes:

  • Annual system flushing to remove mineral buildup
  • Inspection of heating elements and gas connections
  • Filter cleaning and replacement as needed
  • Performance testing to ensure efficiency

 

Is a Tankless Water Heater Right for Your Home?

While tankless systems offer many advantages, they may not be ideal for every household. Here are some factors to consider:

  • Household Size – Larger families with high water usage may need a higher-capacity unit or multiple units.
  • Upfront Cost – While tankless systems cost more upfront, they offer long-term savings in energy efficiency.
  • Existing Gas & Electrical Connections – Some homes may require upgrades to accommodate a tankless system.

Our experts will help you determine if a tankless water heater is the right fit for your home based on your specific needs.

 

Why Choose Dor-Mar for Tankless Water Heater Services?

  • Certified & Experienced Plumbers – We specialize in tankless installations and repairs.
  • Fast & Reliable Service – Get same-day installation and emergency repairs.
  • Upfront Pricing – No hidden fees—just honest service and transparent estimates.
  • Energy-Efficient Solutions – We help homeowners reduce energy costs and improve efficiency.
  • Trusted Since 1962 – Over 60 years of professional plumbing experience.

 

Frequently Asked Questions About Tankless Water Heaters

How long do tankless water heaters last?

Tankless water heaters typically last 20 years or more, compared to 10-15 years for traditional tank water heaters. Regular maintenance can help extend their lifespan.

Do tankless water heaters provide instant hot water?

Tankless water heaters heat water on demand, but they do not necessarily provide instant hot water. The time it takes to get hot water depends on the distance from the unit to the tap. However, adding a recirculation pump can speed up delivery time.

Can a tankless water heater run out of hot water?

No, a tankless water heater provides endless hot water as long as there is a sufficient water supply and heating capacity. However, multiple high-demand uses at the same time may require a larger unit or multiple units.

Are tankless water heaters more expensive to install?

Yes, the upfront cost of a tankless water heater is higher than a traditional unit due to installation requirements. However, the long-term energy savings and longevity often offset the initial investment.

What maintenance does a tankless water heater require?

To keep a tankless water heater running efficiently, we recommend annual maintenance, including:

  • Flushing the unit to remove mineral buildup
  • Checking the filters and gas lines for blockages
  • Inspecting heating elements and sensors for wear

Can I replace my traditional water heater with a tankless one?

Yes, but converting from a traditional hot water tank to a tankless system may require modifications to your gas line, water line, and venting system. Our experts can assess your home and determine the best installation approach.

 

Schedule Your Tankless Water Heater Consultation & Estimate Today!

Ready to upgrade to a tankless water heater or need repairs for your existing unit? Contact Dor-Mar today for expert tankless water heater services. Enjoy endless hot water, lower energy bills, and a space-saving design!

See What Our Many Satisfied Customers Say…

Dor Mar Heating & Air ConditioningExcellentDor Mar Heating & Air Conditioning4.6 Based on 1423 reviews fromSee all reviews review us onLewis MillinerLewis Milliner ★★★★★ The DorMar technician, Wes Frasure, was very professional, knowledgeable, kind and respectful.Ashley WarnerAshley Warner ★★★★★ Jordan was great and addressed my concerns today with plumbing issues. I appreciated him taking the time to explain the issues and what needed to be done to fix it. He was knowledgeable and friendly. I will definitely be requesting to use him next time!Response from the ownerWe appreciate you taking the time to leave such a thoughtful review for your technician Ashley! Fred HabenschussFred Habenschuss ★★★★★ Derrick did a great job repairing my HVAC. He was very efficient and explained everything that he was doing.Mike BookerMike Booker ★★★★★ Anthony came by today to replace my water heater I recently had install by Dormar. He was professional, courteous, prompt and very knowledgeable. I'm always thoroughly impressed at the level of professionalism by Dormar.Vern JewettVern Jewett ★★★★★ The repair was successful. Zach was friendly and professional.nicholas frostnicholas frost ★★★★☆ Said it would be 2 hours but tech was delayed. Canceled after no response for 4 hours. Customer service called me later tonight to apologize and offer to schedule service.Response from the ownerWe guarantee same day service and if someone told you an approximate time I apologize. We strive to be the fastest HVAC company and I can guarantee I’ll have a tech at your house tonight if you try me. Jamie TifftJamie Tifft ★★★★★ Jordan is amazing! Super friendly and knowledgeable, solved my issue within seconds and gave me all kinds of info and recommendationsPaula ParkerPaula Parker ★★★★★ Response from the ownerThank you for leaving us 5-stars Paula! Brenda CorbettBrenda Corbett ★★★★★ Very prompt and professional,addressed the problem and resolved it.Response from the ownerThank you Brenda for taking the time to leave a great review about your expirience! JANET OGILBEEJANET OGILBEE ★★★★★ Response from the ownerWe appreciate the 5-stars Janet, glad we could provide you with great service! Jason WinterhalterJason Winterhalter ★★★★★ Response from the ownerThank you Jason, we appreciate the 5-star rating! Chris CChris C ★★★★★ Highly recommend , showed up next day for a minor repair on my air conditioning unit. Receptionist answered the phone " no leave me a message I'll call you back crap like other places" I will definitely be using them again. Also look at there website they do numerous other things. Thanks againResponse from the ownerWe truly appreciate you taking the time to leave a great review Chris! Shani CahillShani Cahill ★★★★★ Preston called me and went over everything with me. He was great.Response from the ownerWe appreciate the great review for our tech Shani! JANICE PIERPOINTJANICE PIERPOINT ★★★★★ Prompt and very professionalResponse from the ownerThank you for the great review Janice! Dan FaheyDan Fahey ★★★★★ Tech was thorough and explained all that he was doing. Appreciate his patience and willingness to explain everythingResponse from the ownerWe appreciate you taking the time to leave a great review about your expirience with our technician Dan! Jerry GoodmanJerry Goodman ★★★★★ Prompt, knowledgeable, and efficient. Cleared our clogged drain in short order. Highly recommend.Response from the ownerThank you for choosing Dor-Mar Home Services Jerry! We appreciate the recommendation! Bob KlemmBob Klemm ★★★★★ Response from the ownerThank you for the great rating Bob! Robert WilsonRobert Wilson ★★★★★ Very professional and efficient.Response from the ownerThank you Robert for the good review! H. EckertH. Eckert ★★★★★ Very goodResponse from the ownerWe appreciate the great review! Matt KeenerMatt Keener ★★★★★ Response from the ownerThank you Matt for the 5-star rating! Pam GroomesPam Groomes ★★★★★ Our service man Wes was on time, gave us a call he was coming, very courteous and did a great job. We continue to use Dor Mar for all our heating and cooling needs. I would recommend Dor Mar to anyone needed heating and cooling expertise.Response from the ownerWe appreciate the great review Pam! Stanley HortzStanley Hortz ★★★★★ DJ did a great job. Been using Dor Mar since 1986.Response from the ownerWe appreciate you taking the time to leave a great review Stanley! Karen KelleyKaren Kelley ★★★★☆ Calob Brewer was polite & was thorough in servicing my A/C. First time in 4 years that a DorMar Tech washed my A/C unit.Response from the ownerThank you for the good review of your technician Karen, if there is anything that'd help us to improve to a 5-star rating in the future please be sure to let us know! Marquita MooreMarquita Moore ★★★★★ I had my annual AC service check performed by Jayden today. He arrived at the beginning of my window of time which was great. He was informative all around, he told me what he was doing, he answered my questions, he was respectful and overall quick & efficient. Thank you Jayden for yet another great AC/HVAC check! I appreciate you!!Response from the ownerThank you so much Marquita for continuing to choose Dor-Mar and always taking the time to leave such a thoughtful review about your appointment with our technician! Ralph GilesRalph Giles ★★★★★ Technician arrived on time and did a great job. Very professional !!Response from the ownerThank you Ralph for the great review! Connie SteedConnie Steed ★☆☆☆☆ Waited all day the first appointment you gave me. No call from your office saying it was canceled. Then when called to see why no one showed up. You said wasn't on any appointment list. So I got on appointment a month later just to be charged 215.00. For your tech to tell me I need a new ac unit. Your company is a rip off. No star but you have to put 1 star to post.Response from the ownerUnfortunetly Connie, we are unable to locate you in oiur system to be able to look into your issue. If you could please reach out to kayden@dormarhvac.com or our main office @ 740-345-6639 so we may address these issues; it'd be greatly appreciated! T HartmanT Hartman ★★★★★ Response from the ownerWe appreciate the 5-star review! Valerie CoeValerie Coe ★★★★★ Response from the ownerThank you for the 5-star rating Valerie! American JusticeAmerican Justice ★★★★★ Response from the ownerThank you for the 5-star review! John HansonJohn Hanson ★★★★★ Response from the ownerWer appreciate you leaving us a 5-star review John! Swen A Hunt Sr.Swen A Hunt Sr. ★★★★★ Response from the ownerWe appreciate the 5-star rating! Joel GardnerJoel Gardner ★★★★★ We just had our yearly furnace check. Our technician Brian was courteous, efficient, and friendly. Dor-Mar has been keeping our furnace, AC, and water heater in top shape for over six years now.J.GardnerResponse from the ownerWe truly appreciate you leaving a great review about your expirience with us Joel! Ryan KnightonRyan Knighton ★★★★★ Mack and Jayden are the best technicians I’ve ever met. They will go way out of their way to help you make sure the job is done right. I can’t stress enough how awesome they are. Highly highly recommend. They’re the best. Mack and Jayden rule the world!! Thanks again from 116 s 32nd st. God bless you guys!Response from the ownerThank you Ryan for leaving your technicians a great review! John MorganJohn Morgan ★★★★★ Zack is an amazing technician. He is very good at what he does. Highly skilled. And quite honestly one of the most genuinely kindest repairmen I've ever had at my house. This was an exceptional experience from start to finish. Once again Dor Mar came through with a kind professional repairman that knew exactly what he was doing!Response from the ownerWe truly appreciate you taking the time out of your day to leave such a thoughtful review for your technician John! Cindy MitchellCindy Mitchell ★★★★★ Response from the ownerThank you Cindy, for the 5-star rating! Dee Ann NilgesDee Ann Nilges ★★★★★ Seth did a great job. I was so frazzled because we discovered out water heater leaking last nite. It was late, but I got the phone service for Dor Mar and they said they could schedule us for Wednesday. it was Monday nite. I said yes, but I didn't know how to stop the water. We finally figured out to stop the pump to the well. Then I got news that Dor Mar could send someone today, and I was so excited!! Seth got here looked at everything, gave us a very reasonable quote and we agreed. He found a second leak and fixed that. I am very happy with his work, and have calmed down from the nite before. Thank you SethResponse from the ownerThank you so much Dee for taking the time to leave such a detailed review about your expirience with us and your technician! Russell SmithRussell Smith ★★★★☆ Response from the ownerWe appreciate the good rating, if there is anything that will help us imrove to a 5-star rating next time wed appreciate the feedback! leslie hueyleslie huey ★★★★★ Steve, at Dor-Mar H&C did a great job, friendly, explain to me about my maintenance on my air conditioner. Put my air conditioner unit back on the slab of concrete better. Definitely would recommend them.Response from the ownerWe appreciate you taking the time to leave such a thoughtful review for your technician! Nancy RadebaughNancy Radebaugh ★★☆☆☆ Nice guy but he never got back to me about an estimate for the actual repair. He did zip tie one duct and I was charged way too much for just that.Response from the ownerNancy, it doesn’t seem that we charged you anything. Looks like Trevon was there yesterday to give an estimate on poor airflow. But we havnt charged you anything since your duct cleaning in March Christine JonesChristine Jones ★★★★★ Response from the ownerWe appreciate you leaving us a 5-star rating Christine! Scott RichmondScott Richmond ★★★★★ Response from the ownerWe appreciate the 5-star rating Scott! Betsy RussoBetsy Russo ★★★★★ Doug Snow and his coworker Tyler were absolutely wonderful professional and knew what needed to be done. Even though they ran into some unexpected problems all was taken care of and I am very happy with the entire process. I have absolute confidence in their work.Response from the ownerThank you so much Betsy for taking the time to leave such a great review for your technicians. We truly appreciate the customers like you! Andrew FagerstormAndrew Fagerstorm ★★★★☆ As far as I know, ac is operating as it shouldMail the (2) service call invoice copies to401 McIntosh DrHoward, OH 43028ThanksResponse from the ownerWe appreciate the good rating and we will be sure to mail you your invoices! Bess BrownBess Brown ★★★★★ Steve was very professional, detail and informative with the care of our air conditioner unit. We gave our units under a maintenance agreement and totally love this process.Response from the ownerWe appreciate you taking the time to leave your technician a great review about your expirience with us! Dakota HackerDakota Hacker ★★★★★ Trevon came out and inspected my ac unit. Knowledgeable individual with a great attitude despite the heat and muggy weather. 10/10 would recommend this company for your HVAC needs.Response from the ownerWe truly appreciate you taking the time to leave your technician a great review Dakota! Chip SantosChip Santos ★★★★★ Response from the ownerThank you for the 5-star rating Chip! Christine BurkampChristine Burkamp ★★★★★ Quick and friendly!Response from the ownerThank you for the great review Christine! Derek SannerDerek Sanner ★★★★★ Response from the ownerWe appreciate the 5-star rating Derek! Dan BarnettDan Barnett ★★★★★ Punctual and polite. Very knowledgeable. Respectful and answered any and all questions. Highly recommend.Response from the ownerWe appreciate bthe great review Dan! Darren HallDarren Hall ★★★★★ Response from the ownerThank you for the 5-star rating Darren! js_loader

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