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TRUSTED BY MOUNT PROSPECT, IL HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon218
    Verified water heater services reviews

Top-Rated Water heater pros in Mount Prospect - Updated Nov 2026

Avatar for Aqua Knight Plumbing Co.
Aqua Knight Plumbing Co.
5.0(
16
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair+5 more

Serving Mount Prospect, IL and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

With 24 years of experience we are dedicated to providing our clients with the very best in service, installation, and repairs for all phases of your plumbing needs. We specialize in a variety of residential and commercial services from water heater installations, sewer main installations, sump pump installations, repairs and so much more! We take pride in the attention to detail put into each of the projects \nwere involved with. Were known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction. \n \nAll Work Is Warrantied - Inquire Within \n \nMilitary Veteran and First Responders Discounts Available - Inquire Within \n \nDeposits May Be Required - Inquire Within \n \nAccepts Cash, Checks & Major Credit Cards \n \nFinancing Options Are Available - Inquire Within \n \n24/7 Emergency Services Available \n \naquaknightplumbing.com

New Sump Pit
Outside Clean Out
Outside Clean Out
March 2026
July Clog Log

+169

5 neighbors recently requested a quote
Recommended by31%of homeowners
Avatar for Habitat Heroes LLC
Habitat Heroes LLC
5.0(
17
)
Water Heater - Install or Replace

Serving Mount Prospect, IL and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Our water heater broke and my neighbor recommended Habitat Heroes. They came the same day, gave a great estimate and had a brand new water heater installed the next afternoon. Very nice work, cleaned up after themselves, didn't make a huge mess. Everything was perfect. Highly recommend. I also hired them for a new bathroom that should be happening spring 2026, will send updates with pics."
Whiting bathroom
Whiting bathroom
Whiting bathroom
Whiting bathroom
Whiting bathroom

+16

Avatar for Da Vinci Plumbing Design & Consulting, LLC
Da Vinci Plumbing Design & Consulting, LLC
4.7(
45
)
Water Heater - Install or Replace - For Business

Serving Mount Prospect, IL and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"They installed a water service for me. They did a great job in what was a somewhat difficult job. Mike is knowledgeable and reliable. Good communication and execution of work. The price was competitive and work was done on time. In short my experience was such that I hope to hire them again in the future. Keep up the good work!"
Medical Center
Medical Center
Water Service Install
Water Service
Chicago Daycare

+81

Response time12 hrs
20 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Toptec Heating, Cooling, Plumbing & Electrical, Inc.
Toptec Heating, Cooling, Plumbing & Electrical, Inc.
4.4(
614
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair+5 more

Serving Mount Prospect, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1993

Free estimates

Emergency services offered

"TopTec responded immediately, scheduled the appointment for 8AM the next business day. Jason the plumber arrived early, concisely explained his planned actions, coordinated with other trades, professionally executed the installation of the tankless heater with minimal disruptions, cleaned up and left a happy customer. Toptec did an excellent job, for my next plumbing issue I will call Jason at Toptec."
Duct Cleaning Before/After
Additional Photos
Additional Photos
Barrington Geothermal Lake Heat Exchangers
Barrington Geothermal - WaterFurnace Geothermal Heating/Cooling Systems with Desuperheaters

+48

Response time1 day
Response rate100%
10 neighbors recently requested a quote
Avatar for Four Seasons Heating & Air Conditioning
Four Seasons Heating & Air Conditioning
4.3(
3,298
)
Water Heater - Install or ReplaceSolar Water Heater System - InstallTankless Water Heater - Install+6 more

Serving Mount Prospect, IL and surrounding areas

Approved (Corporate)

In business since 1971

Free estimates

Emergency services offered

"On November 15th Chicago was hit with some extreme wind gusts that caused my water heater pilot light to extinguish. I thought this was a simple reset, but the problem was more complicated. I learned the electrode was defective. Had I undertaken this project as a DIY, I would have spent more time than I would have cared to try to figure out why I could not get a flame for my water heater. I was smart to call Four Seasons. My technician figured out the problem quickly. There are times when calling a professional makes sense. I am not an expert on water heaters outside of knowing how to turn it on, clean it periodically, and knowing when I need a new one. Thank you Four Seasons for responding quickly and bringing me hot water."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Response time9 hrs
44 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Kwik Serv Plumbing Heating and Cooling
Kwik Serv Plumbing Heating and Cooling
4.8(
20
)
Tankless Water Heater - InstallTankless Water Heater - RepairWater Heater - Install or Replace+1 more

Serving Mount Prospect, IL and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job

Logo
May Special
0% Financing
2 neighbors recently requested a quote
Recommended by52%of homeowners
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Water Heaters FAQs, answered by experts

Signs your electric water heater is failing include inconsistent water temperature, reduced hot water supply, longer heating times, or discolored water (rusty or cloudy). Unusual noises like popping or rumbling suggest sediment buildup, while leaks or corrosion around the tank signal structural damage. If your unit is over 10 to 15 years old and experiencing frequent issues, it may be time to replace it.

The time it takes to install or replace a water heater depends on the type of heater and the complexity of the job. A professional can typically replace a standard tank-style water heater in one to three hours. However, if the work area is tight, such as a small closet or crawl space, the job could take four to five hours. Replacing an existing tankless unit takes about two to three hours, while upgrading from a tank-style to a tankless water heater is more complex and can take four to six hours. The project will take longer if you are switching fuel sources, such as installing a gas heater which can add about an hour to the timeline, or if the unit needs to be relocated.

Tankless water heaters heat water as it passes through the unit instead of storing heated water in the tank. Their ability to produce hot water on an as-needed basis makes them more efficient. However, they are generally more expensive than traditional units. Is a tankless water heater worth it? Most homeowners will save money with a tankless unit in the long run by using less energy.

You should replace your gas water heater when it’s reached the end of its lifespan, which is a maximum of 12 years in most cases. If your unit is over a decade old and showing signs of inefficiency, leaks, or frequent malfunctions, it may be time to replace your water heater. Research how to best maintain your gas water heater to help extend its lifespan.

Most hot water heater manufacturers recommend replacing the anode rod about once every three to five years. Anode rods sacrifice themselves by collecting iron, limestone, and other minerals that would otherwise corrode your hot water heater tank. This abuse wears them out long before your water heater does. Check the rod when you remove it and replace it if more than 50% of the metal has been consumed. Check the rod more frequently if you have hard water or use a water softener. 

The Mount Prospect, IL homeowners’ guide to water heater services

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