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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

+171

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

At Da Vinci Plumbing , we have been proudly servicing Chicago and the surrounding communities since 1988. Whether you need an installation for a new home, or you need your water heater replaced, we're here to help! Call us today to get the best possible service!

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 J&S Plumbing, Inc.
J&S Plumbing, Inc.
4.6(
890
)
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 1991

Free estimates

Emergency services offered

"In general J&S Plumbing is very responsive, they went out of their way to install a new water heater for us, in a tight space, within just a couple days of my first call. As for plumbing services, they mentioned that they do not charge extra for work in the evenings or on weekends, which many other companies do. The first power-vented water heater they put in had an issue with condensation drip-back, which caused the burner to have intermittent problems keeping the pilot light going. J&S was very professional and responsive to the problem. A month after the initial install, they ended up replacing with another brand new water heater, quickly and at no cost to us."
Response time10 hrs
3 neighbors recently requested a quote
Recommended by89%of homeowners
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
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Water Heaters FAQs, answered by experts

Heat pump water heaters, also known as hybrid water heaters, are the most efficient types of water heaters—both in terms of carbon emission and energy efficiency. This type of water heater utilizes as little as half of the energy of a traditional water heater while releasing no direct emissions. Tankless water heaters are also extremely efficient, although slightly less so than hybrid heaters.

Venting a gas water heater out of the roof is preferable in most cases. Heated exhaust gases naturally rise, so a vertical vent pipe is efficient. If you’re trying to vent through a pipe exiting a wall, the angle of the pipe may be more horizontal than vertical, making the venting system less effective. If you go through a wall, you may need to add a fan to ensure a successful expulsion of the gases outdoors.

If your water heater is about to celebrate the big 2-0, you may want to consider sending it off to greener pastures. While the water heater may seem to be working well, any conventional, tanked water heater over 10 years of age is at risk of failure. If your water heater is 20 years or older, your best move is to replace your aging heater before it completely breaks down.

A larger heater requires a larger breaker—unless there’s one already installed. The longer answer to this question is more nuanced. Do you place demands on the heater at the same time as running other heavy-duty appliances like ovens and washing machines? Do you live in an older home that may not have considered the higher electrical demands we have now? Breakers need to be sized at 125% of the load. To find that load, you should call a local electrical pro.

When replacing an old unit, you might want to switch from a gas water heater to an electric water heater or vice versa. To do this, you will likely need to add infrastructure to the area. For example, you likely don’t have a gas line that served your old electric water heater. You’d have to call a plumber to put in a new gas line. If you’re replacing a gas unit with an electric one, the plumber will need to safely cap the old gas line. You will then need an electrician to add wiring for the new electric unit.

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.