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Best boiler installation pros near Allenton, WI

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TRUSTED BY ALLENTON, WI HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon221
    Verified boiler installation services reviews

Top-Rated Boiler installation pros in Allenton - Updated Nov 2026

Avatar for Guardian Heating and Cooling, LLC
Guardian Heating and Cooling, LLC
4.7(
82
)
Gas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For BusinessOil Boiler or Radiator Heating System - Install+1 more

Serving Allenton, WI and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"Guardian Heating and Cooling was very professional putting in our new boiler system. Steve was on time, explained everything that was going on, answered any questions about the project, was efficient professionally, and left the area as if there was no work that had happened there. In my opinion an A+ service."
Boilers
Boilers
Boilers
Garage infloor
Sun Room

+4

Response time7 hrs
14 neighbors recently requested a quote
Recommended by100%of homeowners
Sparky's Electical Service
4.7(
200
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Allenton, WI and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"Politely said, Sparky is the boss.  
We needed electricity and HDMI ran from a cabinet in our great room up above our fireplace so we could mount a TV.  Also needed cable and electricity ran to a wall in our master bedroom so we could mount our TV on the wall. 
Sparky showed up on a Friday afternoon, five minutes early.  Assessed the situation, and before he left, said he would look into how much parts/etc would cost, and he would call me with a bid.  Sunday night I received a text from him with a bid, we set up a time for him to come for the install on 8/22 at 9am.  
Sparky showed up at 8:59, and got to work.  I came home from lunch to outlets installed where I had asked, cable ran, everything was great.  He could not find the specific outlet cover for AC / Cable, but it will not be visible once the TV is mounted, so it is not of real concern.  
I was a little uncomfortable mounting the brackets for our TV on the walls, as the studs were located in odd places - and I didn't trust myself to mount a $1,000 60" plasma anywhere that wasn't on a small stand.  ha!  
I asked if he would mind installing the mounts if I kicked him some extra $$, and he gladly obliged to stay longer than he had originally intended.  He even went so far as to use his own screws/mounting bolts that were FAR superior to the ones that were provided in the kit.
Couldn't be happier.  Should we plan on doing any other electrical work / lighting in the future, Sparky will be our first call.  
"
Recommended by95%of homeowners
Avatar for Mr. Holland's Home Services LLC
Mr. Holland's Home Services LLC
4.3(
252
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install

Serving Allenton, WI and surrounding areas

In business since 1997

Emergency services offered

Credit card accepted

"Tech was punctual and friendly. Diagnosed the issue with the switches and outlets. Replaced half of the switches and the outlet repairing the problem. Unfortunately the new switches and outlet did not match the previous color leaving me with 2 white switches and two almond switches in the same bank of switches. Tech told me they could not make them all match because they don’t carry almond color switches. Completed after work survey and was contacted by customer service who stated that they would have a tech come back to the house and install the new white switch that i had purchased due to the inconvenience. New switch was installed without issue."
Additional Photos
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Additional Photos
Additional Photos

+3

Recommended by81%of homeowners
Avatar for Faithful Heating & Air
Faithful Heating & Air
4.5(
53
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Allenton, WI and surrounding areas

In business since 2016

Free estimates

Emergency services offered

"They came out and looked over the A/C unit. I told him it makes a very loud banging when it starts up and that the company who installed it told us that was normal and it was working fine. Once he was done cleaning the unit, he went to restart it and it tripped the breaker. So he took it apart and found that when it was installed, someone had pinched a wire, cutting the insulation and causing it to short out on the frame of the A/C unit. He fixed that, reassembled the unit and restarted it. It's still a loud start, but not nearly as loud as it was. He informed me that our A/C is a builder grade model and unfortunately it's not the best on the market so it's going to be louder than we would like. Once he was done working on the A/C, he came in and took a look at our furnace to make sure it wasn't hooked up wrong also. Definitely will be calling on Faithful again."
Recommended by89%of homeowners
Sears Heating and Cooling - Milwaukee
4.3(
23
)
Boiler or Radiator Heating System - Install or ReplaceGas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install

Serving Allenton, WI and surrounding areas

In business since 1893

Free estimates

Warranties offered

"Very prefessional and thorough. Left my place clean after the install, and even loaned me some goo-be-gone from their toolbox for a project that I was working on while they were installing my furnace. They reviewed what they did at the end, and gave me a card so that I could call with any issues. Would highly recommend Sears and their contractors."
Recommended by89%of homeowners
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Install Boiler FAQs, answered by experts

If your boiler is 20 years old, it’s time to get a new one. Although it may seem to be working fine, it’s likely eating up more fuel than it should. Also, compared to a brand-new boiler, one that’s 20 years old is probably not working as well. When you get your new unit, you’ll notice that your home is heating more quickly, and the heat is consistent throughout all the rooms.

If you want a new boiler that’s going to help lower your fuel bills, you should buy one that has a high energy-efficiency rating. For example, a boiler that is rated “A” uses at least 90% of the energy created by the boiler. And in order to enjoy the best performance, it’s important to have it installed properly by a highly-rated tech.

Depending on the size of your home and system, as well as any upgrades or add-ons you choose, it may take between three and five days to completely replace an existing HVAC system from start to finish. Your contractor should be able to give you an estimate before they begin the actual replacement.

Yes. Boilers need water to run without overheating, also known as dry firing. If you run it without a sufficient volume of water, either because of a burst pipe or a leak, you run the risk of damaging your machine or jeopardizing the safety of your home as a whole. When in doubt, shut off your boiler and repair any plumbing issues before turning it back on. Alternatively, consider installing a low-water cutoff (LWCO) before any issues arise. This gadget will protect your boiler by monitoring water levels and automatically shutting it off if it gets too low. 

The average lifespan of a boiler is typically between 15 and 20 years, though some may last for as little as 10 years while others can reach 30. A boiler's longevity is influenced by several factors, including the quality of the unit, proper installation, and consistent professional maintenance.

The material also plays a significant role. Older boilers made from durable cast iron can last for over 20 years, with some functioning for up to 50 years. However, it's important to consider their lower efficiency, which can lead to higher utility bills. Modern boilers, often made from steel alloys, are designed to withstand high pressure and temperatures and have an average lifespan of about 20 years.

To maximize your boiler's lifespan, ensure it is installed correctly, have it professionally maintained each year, and address any necessary repairs immediately.

The Allenton, WI homeowners’ guide to boiler installation services

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