Tankless Water Heater Installation & Repair in Little Rock, AR
We make tankless water heater installation and repair simple, safe, and stress-free.
- Family-Owned & Local
- Straightforward Pricing
- Fast, Expert Service
- Family-Owned & Local
- Straightforward Pricing
- Fast, Expert Service
ON CALL, ON POINT







Endless Hot Water, Zero Bulk
Unlike old-style tank systems, tankless water heaters heat water only when you need it. That means:
- More space in your home
- Lower energy bills
- Hot water that never runs out
- Less wear from constant heating
We are the trusted tankless water heater installers for both gas and electric models for homeowners across Little Rock, Cabot, Jacksonville, and nearby towns. Whether you’re building, remodeling, or just ready for an upgrade, we’ll help you switch to a tankless system that fits your needs.
When a Tankless Heater Makes Sense
A tankless water heater upgrade is ideal if:
- You’re tight on space
- Your family uses lots of hot water
- You want to cut energy costs
- You want hot water on demand all day
- You’re planning for long-term savings
How We Install Tankless Water Heaters
Here’s what our tankless water heater installer takes care of:
- Removing the old water heater if needed
- Mounting the new unit on the wall
- Upgrading gas or electric supply (if required)
- Installing pressure relief and drainage
- Testing temperature, flow, and safety
- Ensuring full code compliance
We work with trusted brands like Rinnai, Navien, and Noritz, and we’ll help you choose the right size for your home so it works perfectly from day one.
Tankless Water Heater Repair Services
If your system isn’t working right, our repair service can help. We handle:
- Flushing and descaling
- Fixing flow errors
- Replacing sensors or igniters
- Adjusting valves or gas pressure
Not every problem means replacement. We’ll repair tankless water heater units if they are still safe and efficient to run.
- Fast Fixes, Honest Service—Every Time
Our Credentials
- Master Plumber License #10390
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Preferred installer for Delta,
Navien, and State Water Heaters
- Bonded and insured for your protection
What Our Customers Say About Us
This guy does not quit, he’s a real problem solver. He’s an easy man to work with and he has a genuine passion for the plumbing trade.
100% recommended
Brennen Spangler
100% recommended
Linda Nesmith
Great experience with Harris Plumbing Co. super competitive prices and great quality work.10/10 would recommend.
100% recommended
Jacob Cagle
Did a full house swap from copper to pex. They did an excellent job. Were here for 2 and a half days, went above and beyond fixing the leaks and swapping everything. No longer have to worry about the water causing pinhole leaks in the copper piping!
100% recommended
David Musto
Ready for Endless Hot Water?
That cold shock in the middle of your shower or the wait for the tank to refill is a thing of the past. You don’t have to live with a system that’s always running out or wasting energy. A professional tankless water heater installation gives you endless hot water, saves you money on your utility bills, and frees up valuable space in your home. It’s time for a simple upgrade with a huge impact on your comfort.
Whether you need a tankless water heater installer or an expert repair, Harris Plumbing Co is here to help, quickly and cleanly.
Tips Straight From the Toolbox
Helpful advice, maintenance ideas, and plumbing know-how written for homeowners.
- Emergency Know-How
- Water Heater Wisdom
FAQs for Tankless Water Heater Install/Repair Little Rock, AR
How long does a tankless system last?
Usually 15–20 years with proper care.
How is it different from a tank water heater?
Tankless systems heat water on demand instead of storing it, saving space and energy.
Is a tankless water heater more expensive to install than a traditional one?
Yes. Upfront costs are higher, but energy savings and longevity make it a strong investment. Take advantage of our $250 off tankless installation special.
How to keep water heater running well?
Annual flushing and descaling prevent mineral buildup and keep it efficient.
How do you determine if my tankless water heater needs a repair or a replacement?
We perform a full diagnosis first. If a simple repair keeps it safe and efficient, we’ll recommend that before suggesting replacement.