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Tankless Water Heater Services in Waukesha

Name: Roman Home Services
Address: 2220 S. 114th St,, West Allis, WI, 53227
Telephone: (262) 558-5611

Licensed Plumbers Handling Installation & Repair

Never run out of hot water again, even on the coldest Southeastern Wisconsin mornings. While traditional storage-tank water heaters continuously burn energy to heat standing water, high-efficiency tankless water heaters generate an endless supply of hot water only when you need it, drastically cutting monthly utility costs and reclaiming valuable basement floor space.

Whether you need a high-output unit for a busy Waukesha household or rapid 24/7 repairs on your existing system, Roman Home Services delivers expert tankless water heater installation, maintenance, and repair.

Call (262) 558-5611 or contact us online for tankless water heater services in Waukesha. We also serve Greater Milwaukee.

Tankless Water Heater Solutions We Offer

Upgrading to on-demand hot water requires precise gas sizing, electrical capacity, and venting tailored to Wisconsin’s extreme climate. Roman Home Services provides complete end-to-end tankless solutions designed to maximize energy efficiency and deliver endless hot water across your entire Waukesha home.

Our tankless water heater services include:

Custom water heater installation - Expert sizing and professional mounting of top-tier gas and electric tankless units configured to overcome Southeastern Wisconsin’s freezing incoming ground temperatures.
24/7 water heater repairs - Fast diagnostic and repair services for error codes, ignition failures, temperature fluctuations, and unexpected hot water outages.
Annual descaling and system flushing - Specialized maintenance to flush mineral scale and hard water deposits out of heat exchangers, extending system lifespan and protecting your factory warranty.
Gas line and electrical upgrades - Seamless gas line sizing adjustments and electrical panel connections required to support high-output, whole-home tankless conversions.
Tank-to-tankless conversions - Complete retrofitting service including removal and eco-friendly disposal of your old tank unit, re-routing supply pipes, and installing direct-vent exhaust lines.

You rely heavily on your water heater year-round; make sure it’s in good working order by signing up for our Home Protection Plan.

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Service That Leaves an Impression

I will be using their services for my future needs.
“Scheduling was easy and efficient. Wesley was very friendly and knowledgeable. He was able to cap off our plumbing pipes quickly.”

- Kelly T.
I would definitely call Roman again for further service.
“We had an outlet go bad for our dryer, made a call for service and got a next day appointment. Our electrician Katie was on time, very friendly and got us back up and running.”

- Mike L.
100% will use Roman again.
“Kevin O. was great. He was thorough, showed me what the problem was with my AC and had it fixed right away.”

- Alex R.
Excellent service. Very skilled.
“Technicians work very well with each other. Explained work to be performed. Answered questions. Got the jobs done. Appreciate their professionalism and hard work replacing and installing air-conditioning unit and electrical work. Was good experience. I recommend Roman to family and friends.”

- Deborah M.
Seriously you guys are the best, thank you so much!!
“Wow, who knew that electrical repairs could be so life changing?! Ricky and Brady made my very long overdue repairs looks like an easy breeze to fix! I had already price conditioned myself thinking it would be thousands and thousands to fix and not possible to do right now, but nothing is too hard for these guys and repairs only came out to a couple hundred. Whaaat?!”

- Sam W.
I'm very happy.
“We had some miscellaneous plumbing done and a new water heater installed. The guys were excellent.”

- Kathleen C.
They were very thorough!
“This was a detailed and complicated job and they made it look easy! They were very thorough and cleaned everything up!”

- Jean K.
We've used their service before and will again.
“They arrived within the 4 hour window and made a courtesy call saying they would arrive in 25 minutes. After entering the house they put covers on their shoes. Really appreciate their respect for my time and my home. Upon completion of their work I felt assurance that the problem was fixed.”

- Roxanne A.
Overall I would highly recommend!
“Connor and his apprentice Alex were very friendly, professional and helpful. The whole thing from start to finish was very easy and painless.”

- Justin F.

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Tankless Water Heater FAQs

Can a tankless water heater keep up with Southeastern Wisconsin’s harsh winters?

Yes, but proper sizing is critical. During peak winter, incoming groundwater temperatures in Waukesha can drop as low as 35 to 40°F, requiring a high temperature rise to hit comfortable shower speeds (120°F). A properly rated high-BTU gas unit compensates for this cold incoming water, ensuring you never suffer from lukewarm showers during a January deep freeze.

How does Waukesha’s hard water affect tankless performance?

Whether your home relies on a private well (often 20+ grains per gallon of hard water) or city water, heavy calcium and magnesium deposits will form scale inside the narrow copper heat exchanger over time. Unchecked scale acts as an insulator, forcing the unit to run hotter, lose efficiency, and eventually fail prematurely. We strongly recommend an annual descaling flush and operating with a water softener to keep your factory warranty valid.

Do I need to upgrade my gas lines or electrical panel to go tankless?

In most cases, yes. Whole-home tankless water heaters generate massive amounts of heat instantly, requiring a 3/4-inch gas line rather than the standard 1/2-inch line used by old storage tanks. If you opt for an electric tankless model, your electrical service panel may require an upgrade to accommodate the high-amp breakers. Because we handle plumbing, gas, and electrical under one roof, we take care of all necessary line upgrades seamlessly without needing second-party contractors.

Will switching to a tankless water heater lower my utility bills in Wisconsin?

Because traditional tank heaters continuously burn gas or electricity to keep 40 to 50 gallons of water hot 24 hours a day, even when you're sleeping or at work, a tankless model saves money by operating strictly on demand. Waukesha homeowners typically see a 20% to 30% reduction in water heating energy costs, making tankless units a high-ROI upgrade over their 20-year operational lifespan.

Call (262) 558-5611 for tankless water heater services in Waukesha. We offer free estimates for new systems and same-day service.

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$25 OFF Any service when you need a second opinion Valid Sep 1, 2026 - Dec 31, 2026

The Care Behind the Work

Because How We Serve You Matters Just as Much as What We Do

Know the Cost Before We Start
We believe good service should come with transparency. Our upfront, flat-rate pricing means you’ll know the total cost before work begins.
No Mess. No Stress.
Your home deserves as much care as the work itself. Our Red Carpet Treatment means protecting your space and leaving it clean when the job is complete.
Service With a Personal Touch
From our call center to your home, we believe great service starts with treating people well. Our team is friendly, knowledgeable, and ready to answer your questions.
Nearly a Century of Know-How
For almost 100 years, Roman has combined generations of experience with ongoing training and modern expertise to deliver work you can count on.

Generations of Service, Right in Your Neighborhood

Call Us Today! 262-558-5611

Located in West Allis, WI

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