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Top-Rated Water heater installers and replacers in Monrovia - Updated Nov 2026

Markool Heating & Cooling, LLC
4.7(
18
)
Water Heater - Install or Replace

Serving Monrovia, MD and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"Markool was super professional, kind, and skillful. A few things really stood out. 1) He did a furnace flue piper install that he could have charged us much more for if he had wanted to take advantage of us - but he was honest and we paid less than we feared. He also went the extra mile helping my wife and I through a warranty claim with the furnace company so that we did not have to pay extra part costs. It was an unexpected need, but he was prepared with the part and worked with the manufacturer to get us covered. He was even able to better a previous repair. 2) On a home humidifier install, he made himself available on short notice, took time to answer our questions, and then showed us how to maintain the equipment ourselves so we wouldn't need to shelve out more for additional contracting work - even from him. Grateful!"
Response time1 day
15 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Atlantic Blue Water Services
Atlantic Blue Water Services
4.8(
124
)
Water Heater - Install or Replace

Serving Monrovia, MD and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"On time, in fact earlier than expected. Courteous technicians. Provided options for repair or replacement and was forthcoming about what he saw. Recommended a highly reviewed water heater. All around excellent."
The Fleet
The Building on Rt. 140
Main water line replacement!
Well Pump Replacement
Training Session!

+22

Response time10 hrs
Response rate88%
79 neighbors recently requested a quote
Avatar for Dave the Plumber, LLC
Dave the Plumber, LLC
4.2(
188
)
Water Heater - Install or Replace

Serving Monrovia, MD and surrounding areas

Approved

In business since 2000

Warranties offered

Small jobs welcome

"This was a low complexity modification to a existing gas line connecting to a gas range. It took approximately an hour with two staff. One thing I was concerned about was the usage of a lighter to check for gas leaks. Typically this type of checking is done using soapy water as using fire to check for gas leaks can be hazardous."
Our work
Our work
Our work
Our work
Our work

+11

Response time6 hrs
26 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for TriState Home Services
TriState Home Services
4.6(
204
)
Water Heater - Install or Replace

Serving Monrovia, MD and surrounding areas

In business since 1949

Free estimates

Emergency services offered

"Darren, the Salesman, was extremely knowledgeable and helpful. Very low pressure sale tactics, but laid out all of the options for you. The crew came and finished installing a new heat pump and heat exchanger in a half day and then another individual returned the next day to install a new water heater. Great communication and attention to detail every step of the way! Would highly recommend!"
Furnace Tune Up
Floor Heating System
Additional Photos
Additional Photos
Additional Photos

+2

Response time1 day
Recommended by91%of homeowners
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