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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon237
    Verified water heater services reviews

Find Water heater pros in Hoffman Estates

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 Hoffman Estates, 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

+161

5 neighbors recently requested a quote
Recommended by31%of homeowners
Avatar for AMERICAN FAMILY HEATING AND AIR CONDITIONING
AMERICAN FAMILY HEATING AND AIR CONDITIONING
4.9(
72
)
Water Heater - Install or ReplaceSolar Water Heater System - InstallTankless Water Heater - Install+6 more

Serving Hoffman Estates, IL and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"We were very happy with American Family. Their bid was competitive and the installation of our new air conditioner went very smoothly. They removed the existing system and were great about not destroying our landscape. We had them install the new system in a new location, away from the back patio. So far everything seems to be running fine and I would happily recommend them to anyone."
Response time20 mins
Response rate100%
9 neighbors recently requested a quote
Avatar for Plumb It Best LLC
Plumb It Best LLC
4.8(
253
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessWater Heater - Install or Replace+1 more

Serving Hoffman Estates, IL and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"After buying a water heater at Menards and getting it home, I called Plumb-it Inc about 1:30 p.m on a Monday. I think it was Scott who answered (no recorder!) and he said he could have 2 guys out to our house within 45 minutes to install it. The job went so smooth. They did arrive within 45 minutes. The 2 guys were very knowledgeable about installing a heater. They were efficient, quiet, polite and cleaned up afterwards. They also took the old heater and the box the new heater came in. What more could we ask for? They did everything we expected."
Drain Cleaning
New Sump drain
Closet Bathroom
Response time1 day
Response rate93%
1 neighbors recently requested a quote
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 Hoffman Estates, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1993

Free estimates

Emergency services offered

"Very, very happy with the services Toptec provided. I used them for installing a new hot water heater, installing a new furnace, and some minor electrical work. First of all, very professional. Brian came out, talked to me about what I needed and wanted, and gave me some suggestions. He provided a quote that gave me a few options, with absolutely no pressure to upgrade or add on services. The quote was more than competitive with other contractors I talked to. After I agreed to the contract, Toptec had Brian and John out to perform the work the following day. Both were very professional, clean, and the work looks superior. Immediately following my good experience, I had a minor electrical problem. Called Toptec and they had Gary out to my house in 45 minutes. Again, top of the line professional who figured out a weird wiring situation. When I go to upgrade my electrical I will definitely use Toptec and request Gary. Highly recommend this company."
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%
7 neighbors recently requested a quote
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Showing 1-10 of 249
Water Heaters questions, answered by experts

Depending on the brand of water heater, you may need to install an expansion tank in order to meet the conditions for warranty coverage. It’s important for consumers to read the fine print of the warranty to see if an expansion tank is necessary. Even if an expansion tank isn’t required for the warranty, it’s usually mandated by building codes—although not for tankless water heaters.

No. Expansion tanks must be installed on the supply side (where heated water flows out) of the boiler. There’s also a list of other requirements for most boilers, including being above the pressure relief valves, being on the inner side of any circulator, and more. Your installation manual should have more information on expansion tank installation requirements and what sort of tank the system is made for.

If you are having trouble determining the right breaker size for your water heater, it is a great idea to contact an electrician near you to help. They can help you determine the best option for your home and install the circuit breaker for you, ensuring that you have all the proper permits and that your circuit breaker won’t overload, which could lead to fire and other damage.

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.

You can and should vent the gas from your hot water heater to the outside of your home. Traditionally, these gases were vented back to other gas appliances, like stoves or furnaces, but many jurisdictions have outlawed this practice due to the risks it provides. 

Most water heaters today use atmospheric venting that exhausts the gas out of the home through a pipe.

The Hoffman Estates, IL homeowners’ guide to water heater services

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