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Best boiler installation pros near Greendale, WI

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TRUSTED BY GREENDALE, WI HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.9k+
    Verified boiler installation services reviews

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

Avatar for KETTLE MORAINE HEATING & AIR CONDITIONING LLC
KETTLE MORAINE HEATING & AIR CONDITIONING LLC
4.8(
228
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Greendale, WI and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"Wonderful experience having Kettle Moraine H&AC service our central air conditioner. Matt arrived on time, explained service needed so we could easily understand what needed to be done, and was an absolute joy to have as our technician. Highly recommended and will be a long time customer of KM H&AC!"
Radiant In floor Heating
Furnace Replacement with Humidifier
Additional Photos
Additional Photos
Additional Photos

+8

Response time2 days
Response rate100%
3 neighbors recently requested a quote
Avatar for Droegkamp Furnace Co
Droegkamp Furnace Co
4.8(
575
)
Boiler or Radiator Heating System - Install or ReplaceGas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business

Serving Greendale, WI and surrounding areas

Approved

In business since 1877

Free estimates

Emergency services offered

"very impressed----joe the estimator was very knowledgeable and not pushy-----gary the installer was super and very careful to clean up every little bit of dirt---mike who did the furnace tune was super ------------how often do you have a company so honest that when you ask to have a 20 year old furnace checked out----they do a very detailed check and show the details and they don't try to ram all sorts of repairs at you--they actually said everything is fine for now ( guess who I'll call when I need one }--they were right on par with 2 other companies I called for estimates----awesome job"
Response time1 day
Response rate99%
14 neighbors recently requested a quote
Burant Heating And Air Conditioning
4.5(
15
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Greendale, WI and surrounding areas

Approved

In business since 1997

Free estimates

Emergency services offered

"Swimmingly. I interviewed quite a number of HVAC companies for this job by sending out an RPF (Request for Proposal), and Bob Mamayek was unquestionably the most thorough in his on-site evaluation. Installation crew was fantastic. This is a small shop, and it was a true pleasure to have a team of regular guys just getting the job done. I recommend them without reservation. I almost gave them a B for responsiveness because Bob doesn't do a lot of email, but I realized while typing that this would be completely unfair, for two reasons. A) Bob might not respond to email with email, but he did always respond with a phone call. Frankly, that is better on many counts. B) This ignores the amazing response to my RPF, which was both timely and thorough. So, really, this says more about my email-centric life than Mamayek's responsiveness."
Response time1 day
Response rate100%
4 neighbors recently requested a quote
Avatar for Southport Plumbing, Heating & Cooling
Southport Plumbing, Heating & Cooling
5.0(
13
)
Gas Boiler or Radiator Heating System - Install - For Business

Serving Greendale, WI and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"Very pleased with our new air conditioner installation. The salesman was very nice and explained everything to my satisfaction. The installers were efficient and knowledgeable as well. They showed up exactly on time and were finished earlier than I expected. Work areas were cleaned up, inside and out. Not even any metal shavings in the grass where the new ducting was cut. One of the nice gentlemen even explained the new thermostat they installed. I highly recommend Southport Home Services."
Air Conditioner
Furnace System
Outdoor Heat Pump
Garage Heat Pump
Furnace Install

+2

18 neighbors recently requested a quote
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 Greendale, 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
13 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for SEIDER HEATING & AIR CONDITIONING INC
SEIDER HEATING & AIR CONDITIONING INC
New to Angi
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business

Serving Greendale, WI and surrounding areas

Approved

In business since 1912

Free estimates

Emergency services offered

Seider Heating, Plumbing & Electrical is a family-owned, Wisconsin company with more than a century of experience keeping local homes and businesses comfortable. Our HVAC team provides dependable heating and cooling services, including furnace and air conditioner repair, replacement, installation, and preventative maintenance.\n\nWe work with homeowners and businesses throughout Southeastern Wisconsin to keep their systems running efficiently and reliably through every season. From routine tune-ups to complete system installations, our experienced team is committed to quality workmanship, honest service, and lasting comfort.\n\nAs a company that has served generations of Wisconsin families, we take pride in treating every customer like a neighbor.

AC Move
AC Check
AC Maintenance
Furnace Tune-Up
Furnace Tune-Up

+1

10 neighbors recently requested a quote
Avatar for A Better Way Heating and Cooling LLC
A Better Way Heating and Cooling LLC
5.0(
31
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Greendale, WI and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"Better Way was on time and explained what they needed to do. I needed to have a new wire installed from thermostat to furnace. They moved my ceiling tiles in the basement, ran the wire, replaced my tiles and hooked up my new thermostat. They programed the new thermostat and walked me through registering it online. I never had a wifi thermostat before. Process was smooth and everything works great. Will use them again."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+7

Recommended by100%of homeowners
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Install Boiler FAQs, answered by experts

You can save money on heating oil through a combination of improving home efficiency and smart purchasing strategies.

Home Efficiency and Usage:

  • Improve Insulation: Ensure your home, especially the basement and attic, is well-insulated and sealed against drafts to prevent heat leakage.

  • Manage Your Thermostat: Use a properly calibrated and programmable thermostat. Lower the temperature by a few degrees, particularly when you are away from home or asleep.

Purchasing Strategies:

  • Buy in the Off-Season: Order heating oil during the summer months when prices are generally at their lowest. This strategy is most effective if you have a large primary tank or a separate storage tank to accommodate bulk deliveries.

  • Consider a Delivery Contract: Some companies offer contracts with a set price for the term. This can lead to savings if market prices for oil increase, but you might pay more if prices drop.

One of the easiest ways to determine which type of furnace will work best for your home is to contact a professional in your area. Many HVAC companies offer free consultations to help potential customers determine if they need a new system and which type would work best for their home and the community’s climate.

Unless they are connected to the same system, boilers and water heaters will both need their own expansion tanks. The only case they wouldn’t have separate expansion tanks is if the boiler is pulling double duty and managing a heating system while also supplying hot water for a home. In which case, you may not need a hot water heater.

Yes, most municipalities require a permit for propane boiler installation to ensure safety and code compliance. Permit fees vary by location and are often included in your installer’s quote, as they’ll handle the permitting process. Ensure that you always check local regulations before starting your project to avoid fines or delays.

The right type of HVAC system will depend on several factors, including your climate, budget, preferences, and existing HVAC setup. For example, if you live in an area that experiences extreme weather, then a split system would likely be the best option. Or, if budget is a concern, consider installing a ductless system in just one room.

The Greendale, WI homeowners’ guide to boiler installation services

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