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Avatar for JB Mechanical, LLC
JB Mechanical, LLC
4.9(
30
)
Central A/C - Service or RepairAir Ducts & Vents - CleanCentral A/C - Install+4 more

Serving Sullivan, WI and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"I spoke with the owner at 2:30 in the afternoon and he was here for an estimate at 5pm. We booked an appointment for a new furnace that day. We had problems with the old furnace and the owner worked on it, attempting to replicate the problem. A Tech was sent out the next morning (free of charge) to get us through until the new furnace was installed 6 days later. Everyone we dealt with was VERY knowledgeable, explained each step to us, were expedient and very thorough. Pricing was excellent. This company will be the only company we call for ANY HVAC work. HIGHLY RECOMMEND!!!"
Response time2 days
16 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Capital Heating & Cooling
Capital Heating & Cooling
4.2(
201
)
Air Ducts & Vents - Clean

Serving Sullivan, WI and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"The company was quick to contact me to establish a time for an estimate. Do to weather conditions in our area the company had to reschedule. I could appreciate that. The tech was on time for his appointment. He was professional in his work and presentation of what he believed my needs were. The prices quoted for the work did not fit into my budget or what I would consider the going rates for my area."
Dirty furnace fliter
AC Repair in Brookfield
AC Replacement
Geothermal Heating System Installed
Capital HVAC Geothermal installer

+34

Response time10 mins
167 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Countryside Heating and Cooling, LLC
Countryside Heating and Cooling, LLC
5.0(
7
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+2 more

Serving Sullivan, WI and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"Shane was able to schedule a prompt appointment. He arrived on time and performed a thorough diagnostic on the furnace. He identified an issue I was unaware of and corrected the problem with the air conditioner using parts that were still under warranty. I will gladly use his services again."
Heating the Dream Barn
Heating the Dream Barn
Heating the Dream Barn
2024 Nextdoor Fave Award
2024 Nextdoor Fave Award

+2

Response time1 day
3 neighbors recently requested a quote
Avatar for Over the Moon Heating, Air & Electric
Over the Moon Heating, Air & Electric
3.6(
15
)
Central A/C - InstallAir Ducts & Vents - CleanCentral A/C - Service or Repair

Serving Sullivan, WI and surrounding areas

Approved

In business since 2009

Emergency services offered

Warranties offered

"I had the Team out to perform and AC service and Furnace tune up. With such great service and comparable pricing I ended up moving forward with duct cleaning services. The guys were friendly and professional they were also nice to my doberman."
Team & Job Photos
Team & Job Photos
Team & Job Photos
Team & Job Photos
Team & Job Photos

+51

Response time4 hrs
69 neighbors recently requested a quote
Recommended by54%of homeowners
Avatar for Ls industrial repair
Ls industrial repair
5.0(
2
)
Window A/C Unit - Service or Relocate

Serving Sullivan, WI and surrounding areas

Approved

Free estimates

Small jobs welcome

Credit card accepted

"He showed up in a timely manner. He did the job quickly. There was a shorted wire that he had to re-run and pull through the existing pipe. So far it's all working great and has not needed to return. So far everything working great."
Avatar for SEIDER HEATING & AIR CONDITIONING INC
SEIDER HEATING & AIR CONDITIONING INC
New to Angi
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+1 more

Serving Sullivan, 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

2 neighbors recently requested a quote
KC Cleaning Crew
New to Angi
Air Ducts & Vents - Clean

Serving Sullivan, WI and surrounding areas

Approved

Offers commercial services

At KC Cleaning Crew, we specialize in post construction cleaning and general cleaning that gets your space ready for the spotlight — whether it's a grand opening, new office launch, or a freshly renovated property. We know the final step before opening your doors is making sure everything is spotless, safe, and presentation-ready. That’s where we come in.\n\nAs a proud local business, we’re more than just a cleaning crew — we’re part of the community. We’re committed to supporting other local businesses by providing reliable, detailed cleaning services that help you shine from day one.\n\nFrom dust to debris, we handle the mess so you can focus. We work with you to ensure all your cleaning needs are met with quality and in a timely manner. \n\nClean space and Clean start\n

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Air Conditioning questions, answered by experts

Dirty filters are almost always the cause of poor airflow, so they should be regularly cleaned and then replaced as needed. The fan blades can also get dirty, so they should be cleaned when the unit is turned off. Make sure that the outdoor area around the back of the unit is unobstructed. Trees, shrubs, trash, and other objects could be too close to your unit.

It depends on the type of AC unit and the extent of the mold growth. For example, if you have a small amount of mold in your central air conditioner, it’s worth cleaning it to protect your HVAC system and your health. In situations like these, you can often remove the mold yourself in a couple of hours. On the other hand, if you have a portable AC unit with a severe mold problem, it makes more sense to buy a new one. On average, replacing a portable AC unit costs $100 to $500.

Choosing a unit with higher BTUs can use more electricity if the BTUs are more than what’s necessary for your room size. However, choosing an AC with BTUs that match the size of your room or house, your unit will cool your space efficiently. On the flip side, choosing a system with not enough BTUs can cause the system to work harder to try to cool the space, leading to more electricity consumption and higher energy bills.

While personal preferences widely vary, sleep experts say the best temperature for sleeping is between 60 and 67 degrees Fahrenheit rather than 78. If you do choose to sleep with your AC unit tuned to 78 degrees, you might want to use only a sheet or light blanket rather than a comforter. You might also consider installing a window unit in your bedroom so that you can be cooler in bed without wasting energy cooling the whole house.

An HVAC system typically lasts between 10 and 30 years, with an average lifespan of 15 to 25 years. The longevity of the system is influenced by factors such as the quality of the unit, usage frequency, local climate, and how well it is maintained. Regular maintenance, including cleaning, filter replacements, and professional inspections, can help maximize its lifespan. Different components within the system have varying life expectancies. For example:

  • Furnaces: 15 to 30 years

  • Boilers: 20 to 35 years

  • Air Conditioners (AC units): 12 to 20 years

  • Heat Pumps: 10 to 20 years

  • Ductless Mini-Splits: 10 to 30 years

The Sullivan, WI homeowners’ guide to air conditioning services

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