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Top-Rated Boiler repair pros in Prentice - Updated Nov 2026

Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+13 more

Serving Prentice, WI and surrounding areas

In business since 1971

Credit card accepted

"AHS is ok. They cover repairs of most everything under the roof of your house. The companies that contract with them are not always the best. You call AHS with the issue, they send a fax to the repair company and give you the contact info. If they don't contact you within 24 hours, you call them. Sometimes they answer, sometimes they don't. When they arrive (usually three days or so later), they service the item. if it has issues within the 90 days, you call AHS again, they are sent out with no charge. If the serviceman decides the unit is unrepairable, AHS will allow you to choose a replacement from their listing (usually not as good as what you have) they will install and remove your old item, or give you wholesale amount to buy and install your own. Prices vary on what you want covered and what you want the copay to be, plus where you live. For me it is 49.99 per month with a 75.00 time of service order. You can have more than one item serviced at the same time under the same fee. If you have a SEAR product the repair guys are great. Not that wild about the other ones they send out. But it is a big savings compared to calling someone on your own. The cost of service is only the 75.00 copay."
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+2

Recommended by65%of homeowners
K & N Services
3.6(
16
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+13 more

Serving Prentice, WI and surrounding areas

In business since 2006

Free estimates

Emergency services offered

Owner operated. I am Jack of all trades. No job to big or small. We do everything from hauling to painting , Plumbing electrical , rental unit turnovers , trash outs roofing , windows and doors. My contact information has been outdated on here for a while. sorry to any customers who tried to reach me. And as always a 20% VETERANS & senior discount.

Recommended by90%of homeowners
Sears Heating and Cooling - Wausau
4.5(
4
)
Boiler or Radiator Heating System - Install or ReplaceGas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install

Serving Prentice, WI and surrounding areas

In business since 1893

Free estimates

Warranties offered

Sears Home Improvement Products � Heating and Cooling \n \nSears can provide the right solution to your home improvement needs. We offer a full line of exclusive Kenmore� and Carrier� heating and cooling systems. Get the brands you trust from the name you recognize � Sears. Schedule your FREE In-Home Consultation today! \n

Recommended by100%of homeowners
Retreat Home Heating & Cooling, LLC
4.7(
3
)
Gas Boiler or Radiator Heating System - Install

Serving Prentice, WI and surrounding areas

In business since 2000

Free estimates

"Brian is a great guy and one of the best contractors I have ever hired. I own two old houses, so that is saying a lot! He is honest, knowledgeable, offers alternatives, is willing to explain everything and answer questions, and was cheaper than every other HVAC firm I contracted. I had great difficulty finding anyone who would listen to my concerns and find solutions for system, and was living in fear of the next expensive boiler failure. By a long shot, Brian was the most detailed in answering my questions and explaining his proposed solutions. Super nice guy too. I have never had such great customer service. He was the only one who took the trouble to measure my existing heat needs, plus he offered two alternatives (high efficiency and conventional) and estimates. I decided to go high-efficiency, and he then refined his plan, and even met with the suppliers representative at my home to remeasure, discuss the configuration, and make sure the new boiler would be covered by the warranty. Boilers are not cheap, so that was much appreciated! Once installation day came, he was willing to adjust as we discovered additional issues and was committed to staying until the job was done. Old houses can be a real pain, and this one threw a few curve balls his way, but he was always cheerful and the final result is so worth it. It is truly a work of art; I feel like I need to give people tours to see how beautiful and easy to maintain it is. Despite living farther away than my previous HVAC contractor, he charges 1/3 less on annual service and any service calls as well. Win-Win on all counts."
High-efficiency furnace
High-efficiency furnace
High-efficiency furnace
High-efficiency air conditioner
High-efficiency furnace

+8

Response time1 day
Response rate96%
Recommended by100%of homeowners
Boiler Repair FAQs, answered by experts

One of the most common signs you’re dealing with a bad thermocouple is the pilot light for the water heater will continuously go out. For example, you may light the pilot light and then have to re-light it a few days later. You can also look at the thermocouple for a visual inspection. If you notice discoloration, cracks, holes, or other damage, then you know it needs replacing.

Boilers provide even heating, energy efficiency, and a quiet operation compared to forced air systems.

Most HVAC service calls include diagnostic fees, which could include checking on a specific issue you’re experiencing or running through a routine inspection checklist. If you called for a particular problem, the service call will also include an estimate to fix the issue, including materials and labor. Depending on your HVAC technician and the service you requested, you might also get a general inspection of your system components to ensure everything is working as intended.

Steam boilers require flushing at least every six to 12 months to keep them operating effectively for as long as possible. Depending on your water quality and frequency of use, you might need to do this more frequently. The flushing process helps to remove problematic buildup of sediments. While a boiler contractor near you can perform a thorough annual flush, learning how to drain the system yourself means you can do this monthly if you experience speedy mineral accumulation because of hard water. 

It’s not customary to tip HVAC technicians, and most professionals won’t expect it. However, it’s a nice way of showing your appreciation for the work they do, especially if they come out in inclement weather or on a weekend or holiday to fix an emergency issue if your heat or AC goes out in extreme temperatures. A good tip would be between 10% to 20% of the total bill, depending on how above and beyond the tech goes for your repair and on the total cost of your HVAC repair or service. For something like a routine tune-up or scheduled maintenance, tips aren’t expected.

The Prentice, WI homeowners’ guide to boiler repairs

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