
FISHERS TANKLESS WATER HEATER SPECIALISTS
Our shop is right here in Fishers, so tankless help is close by. We install, repair and descale Navien, Rinnai, Rheem and Noritz tankless water heaters, and you’ll get an upfront price before any work begins.
• Endless hot water on demand
• Same-day service available
• Yearly descaling for hard water
• 15-year manufacturer’s limited warranty on new units
BEFORE & AFTER
FROM TANK TO TANKLESS
Real photos from a tank-to-tankless conversion we completed in Westfield, Indiana. We removed a 50-gallon power vent water heater and installed a wall-mounted Navien NPE-240A2 tankless water heater, freeing up floor space.

BEFORE
50-gallon power vent water heater

AFTER
New Navien NPE-240A2
TANKLESS WATER HEATER SERVICES
WE INSTALL. WE SERVICE. WE GUARANTEE.
From installation to maintenance and repairs, we handle all your tankless water heater needs with honest pricing, expert workmanship, and the best brands in the industry.
Professional installation of tankless water heaters for maximum performance and efficiency.
Professional replacement of tankless water heaters for maximum performance and efficiency.
Fast diagnostics and expert repairs to keep your tankless water heater running like new.
Extend the life of your unit and maintain peak performance with professional tankless flushing and cleaning.

Tankless water heater installation in Fishers
Our shop is at 11 Municipal Drive in Fishers. Before any install, we check that your gas meter and line can supply the unit, plan PVC venting and a condensate drain for high-efficiency models, and size the unit for the number of showers and appliances you run at once.
Our standard tankless installed price is $4,499. Anything beyond the standard scope, like a bigger gas line, is quoted and approved first. See all installed prices.
Is tankless worth it for your Fishers home?
It’s a good fit if hot water runs out before everyone has showered, you want the space a tank takes up, or you’re staying long enough to benefit from the longer life. The units we install carry a 15-year manufacturer’s limited warranty.
Want to keep the upfront cost down? A new tank heater is cheaper to install. See Fishers water heater replacement.

WHY FISHERS HOMEOWNERS TRUST HOT WATER PROS FOR TANKLESS WATER HEATERS
TANKLESS EXPERTS YOU CAN COUNT ON.
We proudly provide tankless water heater services throughout Fishers, Hamilton County, and surrounding northeast Indianapolis communities.
✓ Specialists in tankless water heater systems
✓ NAVIEN certified
✓ Upfront pricing
✓ Same-day service available
✓ 15-year manufacturer’s limited warranty
Fishers water and tankless descaling
Fishers homes get water from either Citizens Energy Group or Indiana American Water, and your bill shows which. Indiana American’s Noblesville system, which also serves parts of Fishers, reported hardness of about 385 to 467 ppm at its three treatment plants in 2025, roughly 22 to 27 grains per gallon.
Water that hard coats a tankless heat exchanger with scale, which leads to error codes and shutdowns if it isn’t removed. Plan on a yearly descale. Our Tankless Carefree Plan includes it for $99 a year, and ScaleShot is our citric-acid descaler.
Tankless water heater repair in Fishers
Error code? Write it down and take a photo of the rating label so we bring the right parts.
Navien unit? See Navien tankless repair in Fishers.
Rinnai unit? Start with our Rinnai troubleshooting guides.
Tank heater? See Fishers water heater repair.

Fishers Tankless Water Heater FAQs
Are tankless water heaters worth it for Fishers homes?
For many Fishers homeowners, yes. Tankless water heaters provide endless hot water on demand, improved energy efficiency, a compact space-saving design, and a longer lifespan than traditional tank water heaters. With our shop in Fishers, help is close by when your unit needs a descale or repair. Read more: Are tankless water heaters worth it in Indiana?
Do you install tankless water heaters in Fishers?
Yes. Hot Water Pros provides professional tankless water heater installation, replacement, repair, and maintenance throughout Fishers, Hamilton County, and surrounding communities. We install and service Navien, Rinnai, Rheem, Noritz, and more.
How long do tankless water heaters last?
Tankless systems can often last 15–20 years with proper maintenance and annual servicing. Tankless water heaters we install come with a 15-year manufacturer’s limited warranty.
How often should a tankless water heater be flushed?
Most tankless systems should be professionally flushed once per year to prevent mineral buildup and maintain performance. Our annual tankless service includes descaling and rinsing the heat exchanger, cleaning the inlet filter, and checking operation.
Do you offer a tankless maintenance plan in Fishers?
Yes. Our Tankless Carefree Plan is $99 a year and includes your annual tankless service, yearly reminders, priority scheduling, a digital service report, and 10% off qualifying tankless repairs, up to $100 per repair visit.
How do I schedule tankless water heater service in Fishers?
Call or text 317-922-9043 or book online. Same-day service is available, and we give you upfront pricing before any work begins.
IN THE FISHERS COMMUNITY
Proud OneZone Chamber Member
Our shop is right here in Fishers at 11 Municipal Drive, and Hot Water Pros is a proud member of OneZone, the chamber of commerce for Fishers and Carmel businesses. It keeps us connected with the local businesses, contractors and neighbors we serve every day.
CUSTOMER REVIEWS
What Our Customers Say
“They are extremely professional experts who show up same / next day and provide top quality services.”
Jen W.
“Hot Water Pros did exceptional work for me; they will be my go-to for all future plumbing needs.”
Andrew S.
“They came out and replaced my hot water heater today, the same day that I called them to see if they could help me!”
Laura B.
SERVICE AREAS

