Top-rated tankless water heater installers.

Get matched with top tankless water heater installers in Warrenton, VA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Top-Rated Tankless water heater installers in Warrenton - Updated Nov 2026

Avatar for Mermaid Water II
Mermaid Water II
4.9(
93
)
Tankless Water Heater - Install

Serving Warrenton, VA and surrounding areas

Approved

In business since 1997

Free estimates

Emergency services offered

"We purchased our house that has a water treatment & purification system and water heater that was installed by Mermaid Water. We have had them out for system check and to help us understand how to use the system. They also helped correct an item from house inspection regarding the water heater. They have been extremely helpful and responsive. Brent does an excellent job of making sure that the customer is happy."
Kinetico Non-Electric Water Softener
Kinetico Non Electric softener / filter
Kinetico Reverse Osmosis
Commercial Kinetico
Water Softener Install

+1

Response time7 hrs
Response rate86%
8 neighbors recently requested a quote
Avatar for Appleton Campbell
Appleton Campbell
4.6(
339
)
Tankless Water Heater - Install

Serving Warrenton, VA and surrounding areas

Approved

In business since 1976

Free estimates

Emergency services offered

"The technicians were friendly and knowledgeable. The end product was excellent. The office was professional (mostly). The price seemed fair, but I would venture a guess that I could find cheaper, but I wanted a quality installation. I can confirm I found competition that was much more expensive. The only issue I had was scheduling both the quote and the work. In this case we needed both an electrician and plumbers complicating the situation. We scheduled both disciplines to quote on the same day. The electrician missed the window and had to come the next day. For the work to be performed, we again scheduled for a single day process but due to illness apparently had to reschedule for the following day. At that point, I complained to the office due to the inconvenience of taking 4 days out of the office for a 2 day job, looking for a little price reduction. The office manager I spoke to was more interested in defending their position than seeing my side. In the end he granted me a $50 online coupon, reduction yes, but I'm not sure why I wouldn't have been entitled to that regardless. Honestly, in the end I was happy and would hire again due to the quality of work, reasonable price and professionalism in general. They would have received high marks across the board if it wasn't for the scheduling issues. I hope that was just bad coincidence."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

Response time11 hrs
Response rate100%
5 neighbors recently requested a quote
Avatar for Jimmy Gusky Heating & Air LLC
Jimmy Gusky Heating & Air LLC
4.3(
374
)
Tankless Water Heater - Install

Serving Warrenton, VA and surrounding areas

Approved

In business since 1996

Emergency services offered

Credit card accepted

"Excellent. Two separate teams came; one for AC and Furnace; second for Tankless hot water heater; Minor toilet repair also done at no extra charge, including a follow up service call to install new toilet flush handle, also at no charge."
Additional Photos
Additional Photos
Additional Photos
Response time9 hrs
4 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for DB's Plumbing & Drain
DB's Plumbing & Drain
4.8(
194
)
Tankless Water Heater - Install

Serving Warrenton, VA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Fine. I had no issues. They got out to the house very quickly, within several hours of request, they were quick with no added charges or time, and the estimates that were requested (replacement of water heater) were explained thoroughly."
Sewer replacement Inside and out
Team at our new locations ribbon cutting
Expansion tank with new venting
New pipe continued
Whole house re pipe

+212

Response time12 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for Appleton Campbell, Inc.
Appleton Campbell, Inc.
4.3(
61
)
Tankless Water Heater - Install

Serving Warrenton, VA and surrounding areas

Approved

In business since 1976

Free estimates

Emergency services offered

"WT was great! Diagnosed the problem pretty quickly and fixed the issue of water pressure. Went an extra step and took samples of water. Great to have an experienced friendly person come out on a Friday afternoon which was less than 24 hours from my call."
Happy HVAC Technician
Electrician gathering parts
Checking in the equipment needed for the day
Happy Electricians
We make our own sheet metal!

+9

Response time9 hrs
Response rate94%
194 neighbors recently requested a quote
Avatar for First Choice Plumbing & Remodeling
First Choice Plumbing & Remodeling
4.8(
128
)
Tankless Water Heater - Install

Serving Warrenton, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"If I could give 10 stars I would! Our 2 year old hot water heater went out in the middle of the night due to an electrical issue. Tommy came the next morning, identified the problem and explained everything to me. He returned later that afternoon with a brand new hot water heater and installed it. We had hot water less than 24 hours after our heater went out! Installation was professional and I can tell he takes pride in doing things the right way. He was also up front, fair and honest about pricing. Thank you so much!"
Response time5 hrs
Response rate92%
10 neighbors recently requested a quote
Avatar for Air Force One Heating & Cooling
Air Force One Heating & Cooling
5.0(
11
)
Tankless Water Heater - Install

Serving Warrenton, VA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Myself and my parents have both used air force one for new hvac system installations and have been very happy with the quality of the service we received and the materials they used. Jimmy the owner was very easy to work with and paid attention to all my needs surrounding budget and areas we wanted to improve. I highly recommend them!"
A/C Maintenance
New AC Installation
Ductwork Replacement
Water Heater Install
HVAC Maintenance

+1

Recommended by9%of homeowners
...
Showing 1-10 of 120

The Warrenton, VA homeowners’ guide to tankless water heater installations

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