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  • Verified reviews icon323
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Oconomowoc

Avatar for Droegkamp Furnace Co

Droegkamp Furnace Co

4.90(
526
)
Approved Pro

Droegkamp Furnace Co

4.90(
526
)
Approved Pro
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
149 years of experience

At Droegkamp Furnace Company, Inc. customer satisfaction is our number one priority. Please contact us for all of your HVAC needs, no matter how big or small. 18 employees. Uses subs for electrical work. 24 hour service. Free estimates. Financing available. Sorry we do not work on oil furnaces or boilers. Also we are not a plumbing contractor.

"Went great"

Jessica F on July 2022

At Droegkamp Furnace Company, Inc. customer satisfaction is our number one priority. Please contact us for all of your HVAC needs, no matter how big or small. 18 employees. Uses subs for electrical work. 24 hour service. Free estimates. Financing available. Sorry we do not work on oil furnaces or boilers. Also we are not a plumbing contractor.

"Went great"

Jessica F on July 2022


Avatar for KETTLE MORAINE HEATING & AIR CONDITIONING LLC

KETTLE MORAINE HEATING & AIR CONDITIONING LLC

4.88(
119
)
Approved Pro

KETTLE MORAINE HEATING & AIR CONDITIONING LLC

4.88(
119
)
Approved Pro
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
39 years of experience

Kettle Moraine Heating & Air Conditioning, LLC is a third-generation family-owned business that has been serving Southeastern Wisconsin for over 35 years. Our mission is to provide our customers with peace of mind and 5-star service. We specialize in air conditioning, furnaces, boilers, ductless mini-splits, solar, backup generators, radon mitigation, plumbing and electrical services. Additionally, we are the region’s premier installer of Lennox energy-efficient heating and cooling systems and Mitsubishi ductless mini-split systems. With an unwavering commitment to our customers, you can count on us to deliver the personalized care you deserve. • 24/7 Emergency Service • Tune-Ups/Maintenance Plans • 0% Financing

"This company is amazing! I would recommend them 10times over. The job was gone quickly and with such precision. They care about their customers and will go to lengths that most companies, nowadays, have forgotten. The owner himself is not afraid to work hard and do what needs to be done. Sherry was beyond helpful and supportive throughout the process. If you want the job done right, this is your company."

Nichole S on November 2022

Kettle Moraine Heating & Air Conditioning, LLC is a third-generation family-owned business that has been serving Southeastern Wisconsin for over 35 years. Our mission is to provide our customers with peace of mind and 5-star service. We specialize in air conditioning, furnaces, boilers, ductless mini-splits, solar, backup generators, radon mitigation, plumbing and electrical services. Additionally, we are the region’s premier installer of Lennox energy-efficient heating and cooling systems and Mitsubishi ductless mini-split systems. With an unwavering commitment to our customers, you can count on us to deliver the personalized care you deserve. • 24/7 Emergency Service • Tune-Ups/Maintenance Plans • 0% Financing

"This company is amazing! I would recommend them 10times over. The job was gone quickly and with such precision. They care about their customers and will go to lengths that most companies, nowadays, have forgotten. The owner himself is not afraid to work hard and do what needs to be done. Sherry was beyond helpful and supportive throughout the process. If you want the job done right, this is your company."

Nichole S on November 2022


Avatar for Napravnik Construction, LLC

Napravnik Construction, LLC

4.92(
59
)
Approved Pro

Napravnik Construction, LLC

4.92(
59
)
Approved Pro
Super Service Award
Customers say: Quick response
28 years of experience
Free onsite estimate

Here, at Napravnik Construction, LLC, we have expanded our business service area from the Chicago Western Suburbs North to Milwaukee metro area and pride ourselves with reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"They responded quickly to the request. They were able to fit us in right away. The job turned out to be more difficult than expected but they resolved any hurdles and did great! Cleaned up after themselves. Highly recommend them "

Mike C on January 2026

Here, at Napravnik Construction, LLC, we have expanded our business service area from the Chicago Western Suburbs North to Milwaukee metro area and pride ourselves with reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"They responded quickly to the request. They were able to fit us in right away. The job turned out to be more difficult than expected but they resolved any hurdles and did great! Cleaned up after themselves. Highly recommend them "

Mike C on January 2026


Avatar for Guardian Heating and Cooling, LLC

Guardian Heating and Cooling, LLC

4.97(
62
)
Approved Pro

Guardian Heating and Cooling, LLC

4.97(
62
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
28 years of experience

At Guardian Heating and Cooling, LLC we offer a full range of heating and cooling installations, all under one roof. Including, Furnace, A/C, Boilers, Hydronic Systems, Snow Melt Driveways and Walkways. We offer you, our valued customers, expertise and genuine care. We value you as a customer and want to prove to you our skill, integrity, and compassion as a heating and cooling service provider. If you you’re operating an inefficient heating or cooling system that breaks down a lot, it’s likely that it’s going to break down again. Let us help you select the best Heating and Air Conditioning solution for your home. We are dedicated to getting the job done right at the lowest possible price. Best Regards, Guardian Heating and Cooling LLC

"He was very knowledgeable. Shared information on costs and explained process very clearly."

Mary K on May 2021

At Guardian Heating and Cooling, LLC we offer a full range of heating and cooling installations, all under one roof. Including, Furnace, A/C, Boilers, Hydronic Systems, Snow Melt Driveways and Walkways. We offer you, our valued customers, expertise and genuine care. We value you as a customer and want to prove to you our skill, integrity, and compassion as a heating and cooling service provider. If you you’re operating an inefficient heating or cooling system that breaks down a lot, it’s likely that it’s going to break down again. Let us help you select the best Heating and Air Conditioning solution for your home. We are dedicated to getting the job done right at the lowest possible price. Best Regards, Guardian Heating and Cooling LLC

"He was very knowledgeable. Shared information on costs and explained process very clearly."

Mary K on May 2021


Avatar for Due North Heating & Cooling, LLC

Due North Heating & Cooling, LLC

5.00(
14
)
Approved Pro

Due North Heating & Cooling, LLC

5.00(
14
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

We take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"Can't say enough about how good Josh and his company is. He gave me an estimate on a heat exchanger for my furnance and a complete system replacement. We went with the heat exchanger replacement. He came out and diagnosed a bad thermostat too for no charge, which he allowed me to replace which saved me some money. The estimate included the furnance tune-up and heat exchanger replacement. The estimate is what I ended up paying. Very nice, honest guy!"

Dale S on November 2021

We take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"Can't say enough about how good Josh and his company is. He gave me an estimate on a heat exchanger for my furnance and a complete system replacement. We went with the heat exchanger replacement. He came out and diagnosed a bad thermostat too for no charge, which he allowed me to replace which saved me some money. The estimate included the furnance tune-up and heat exchanger replacement. The estimate is what I ended up paying. Very nice, honest guy!"

Dale S on November 2021


Avatar for Mr. Holland's Home Services LLC

Mr. Holland's Home Services LLC

4.50(
212
)
Approved Pro

Mr. Holland's Home Services LLC

4.50(
212
)
Approved Pro
Customers say: Super punctual
29 years of experience
Emergency services offered

As the trusted neighborhood HVAC service team in Milwaukee, Mr. Holland’s Home Services is committed to running their business based on five important principles: care, empathy, and trust, being always available, outworking the competition, quality workmanship, and using their “find a way” method. By keeping these five principles in mind, the business is able to deliver nothing less than excellent work when it comes to heating, air conditioning, and indoor air quality services. The professional team at Mr. Holland’s Home Services always gets the job done right. They never cut corners and are respectful of a customer’s property. Additionally, Mr. Holland’s takes their community involvement seriously; that they have a personal responsibility to help the people in their community, not just through quality services but also through the endless support they give to organizations and charities throughout Milwaukee and even outside the country. To learn more about Mr. Holland’s Home Services, please visit the company website or call the office today.

"Holland’s inflated the prices of services after the flood in August. We have been loyal customers and the services we paid for through Holland’s are more than double their competitors. We brought this to their attention over a month ago and haven't been offered a satisfactory refund. Get other quotes before booking with Hollands."

Kathy M on October 2025

As the trusted neighborhood HVAC service team in Milwaukee, Mr. Holland’s Home Services is committed to running their business based on five important principles: care, empathy, and trust, being always available, outworking the competition, quality workmanship, and using their “find a way” method. By keeping these five principles in mind, the business is able to deliver nothing less than excellent work when it comes to heating, air conditioning, and indoor air quality services. The professional team at Mr. Holland’s Home Services always gets the job done right. They never cut corners and are respectful of a customer’s property. Additionally, Mr. Holland’s takes their community involvement seriously; that they have a personal responsibility to help the people in their community, not just through quality services but also through the endless support they give to organizations and charities throughout Milwaukee and even outside the country. To learn more about Mr. Holland’s Home Services, please visit the company website or call the office today.

"Holland’s inflated the prices of services after the flood in August. We have been loyal customers and the services we paid for through Holland’s are more than double their competitors. We brought this to their attention over a month ago and haven't been offered a satisfactory refund. Get other quotes before booking with Hollands."

Kathy M on October 2025


Avatar for 1st Choice Heating & Cooling

1st Choice Heating & Cooling

4.53(
45
)
Approved Pro

1st Choice Heating & Cooling

4.53(
45
)
Approved Pro
Customers say: Super punctual
34 years of experience
Free onsite estimate

With more than 29 years experience as your indoor comfort specialists, 1st Choice Heating & Cooling is dedicated to providing the best possible solution for you and your home. Providing 24-hour service, you can count on us to provide you with a system that fits your family's unique needs. We've installed thousands of systems in Southeastern Wisconsin and our quality service, trust and integrity have earned us a reputation for doing the job right. Additional DBA - First Choice Heating & Cooling LLC

"I was a customer of 1st Choice Heating a Cooling for 10 years or more. They installed a furnace in my prior home and just under 3 years ago installed an a/c unit in my current home. Had great service from them up until my most recent interaction. My a/c unit has a 10 year parts warranty and a 1 year labor warranty. The condenser fan motor went out. The part is 100% covered but the labor is not covered. I was charged $160 for a trip/diagnostics fee, then the quote for labor was just over $900. I was able to negotiate the labor down to $650 which is still extremely high given the repair took less than an hour to complete. Price gouging their customers by including filing fees and processing fees in with the labor fee for repairs where the parts are covered and labor is not. The owner was rude and condescending in his communications through the BBB. Claimed I was the problem since maintenance wasn’t done on my 2 year 10 month old a/c unit. I would not recommend 1st Choice Heating & Cooling."

Heidi M on June 2024

With more than 29 years experience as your indoor comfort specialists, 1st Choice Heating & Cooling is dedicated to providing the best possible solution for you and your home. Providing 24-hour service, you can count on us to provide you with a system that fits your family's unique needs. We've installed thousands of systems in Southeastern Wisconsin and our quality service, trust and integrity have earned us a reputation for doing the job right. Additional DBA - First Choice Heating & Cooling LLC

"I was a customer of 1st Choice Heating a Cooling for 10 years or more. They installed a furnace in my prior home and just under 3 years ago installed an a/c unit in my current home. Had great service from them up until my most recent interaction. My a/c unit has a 10 year parts warranty and a 1 year labor warranty. The condenser fan motor went out. The part is 100% covered but the labor is not covered. I was charged $160 for a trip/diagnostics fee, then the quote for labor was just over $900. I was able to negotiate the labor down to $650 which is still extremely high given the repair took less than an hour to complete. Price gouging their customers by including filing fees and processing fees in with the labor fee for repairs where the parts are covered and labor is not. The owner was rude and condescending in his communications through the BBB. Claimed I was the problem since maintenance wasn’t done on my 2 year 10 month old a/c unit. I would not recommend 1st Choice Heating & Cooling."

Heidi M on June 2024


Avatar for Capital Heating & Cooling

Capital Heating & Cooling

4.61(
148
)
Approved Pro

Capital Heating & Cooling

4.61(
148
)
Approved Pro
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
25 years of experience

Capital Heating, Cooling, Electric & Plumbing is a trusted home service provider in Menomonee Falls, WI. We offer expert HVAC, electrical, and plumbing solutions with a commitment to quality, reliability, and customer satisfaction. Our team is available 24/7, ensuring fast and professional service whenever you need it. With top-rated technicians, upfront pricing, and industry-leading warranties, we guarantee comfort and peace of mind for every customer. Whether you need repairs, installations, or maintenance, we’re here to help!

"The technicians that did the actual work did a great job but the tech that did the paperwork and his supervisor whose names are both Tyler are very dishonest. I would not recommend this company to anyone. First off they tried to charge me $17,000 for a furnace and water heater and the removal of a second basement furnace which included the duct work and duct cleaning. When I asked about the cost being so high and I had an estimate from another company for $7417 for an efficiency furnace which included the duct work the supervisor Tyler tried to make it an issue of me having the money to pay. No the issue is why are you charging double what another company is charging. So I took the removal of the second furnace off the estimate and the price dropped to rounded off to $11,000. So I went with this company for the installation of the furnace and water heater. When I called today to let them know my kitchen duct had not been cleaned, which was full of garbage due to no vent cap being on I"

Sandra P on January 2026

Capital Heating, Cooling, Electric & Plumbing is a trusted home service provider in Menomonee Falls, WI. We offer expert HVAC, electrical, and plumbing solutions with a commitment to quality, reliability, and customer satisfaction. Our team is available 24/7, ensuring fast and professional service whenever you need it. With top-rated technicians, upfront pricing, and industry-leading warranties, we guarantee comfort and peace of mind for every customer. Whether you need repairs, installations, or maintenance, we’re here to help!

"The technicians that did the actual work did a great job but the tech that did the paperwork and his supervisor whose names are both Tyler are very dishonest. I would not recommend this company to anyone. First off they tried to charge me $17,000 for a furnace and water heater and the removal of a second basement furnace which included the duct work and duct cleaning. When I asked about the cost being so high and I had an estimate from another company for $7417 for an efficiency furnace which included the duct work the supervisor Tyler tried to make it an issue of me having the money to pay. No the issue is why are you charging double what another company is charging. So I took the removal of the second furnace off the estimate and the price dropped to rounded off to $11,000. So I went with this company for the installation of the furnace and water heater. When I called today to let them know my kitchen duct had not been cleaned, which was full of garbage due to no vent cap being on I"

Sandra P on January 2026


Avatar for Mister Sparky of Brew City

Mister Sparky of Brew City

4.86(
7
)
Approved Pro

Mister Sparky of Brew City

4.86(
7
)
Approved Pro
Super Service Award
Customers say: Quick response
30 years of experience
Free onsite estimate

At Mister Sparky, we know how much you depend on electricity to power your daily life. Luckily, we’re experts when it comes to safeguarding against its inherent dangers and are ready to do the reliable work needed to ensure your home’s electrical systems work for years to come. Our highly trained, licensed electricians are professional troubleshooters who hunt potential hazards and fix them before they cause serious damage. We show up on time, guaranteed, and deliver 100% satisfaction guaranteed with every service call. And because we’re locally operated, our electricians are familiar with the challenges you might face.

"Needed to hook up my portable generator to the house. Mr Sparky was the first to call from angi so I asked for a quote. They came over very quickly and gave my wife and I a very good quote we thought. We didn't even get another, Slept on it, they called back the next day and we set set up a date. Mario showed up (very nice guy) . Said it would be a couple hours, and it was. They didn't need to turn off the whole house which was good and wired in a new electrical panel and plug on the outside. We tested it, and it worked perfectly. We are very happy. Thanks guys....!"

SCOTT & Debbie C on October 2025

At Mister Sparky, we know how much you depend on electricity to power your daily life. Luckily, we’re experts when it comes to safeguarding against its inherent dangers and are ready to do the reliable work needed to ensure your home’s electrical systems work for years to come. Our highly trained, licensed electricians are professional troubleshooters who hunt potential hazards and fix them before they cause serious damage. We show up on time, guaranteed, and deliver 100% satisfaction guaranteed with every service call. And because we’re locally operated, our electricians are familiar with the challenges you might face.

"Needed to hook up my portable generator to the house. Mr Sparky was the first to call from angi so I asked for a quote. They came over very quickly and gave my wife and I a very good quote we thought. We didn't even get another, Slept on it, they called back the next day and we set set up a date. Mario showed up (very nice guy) . Said it would be a couple hours, and it was. They didn't need to turn off the whole house which was good and wired in a new electrical panel and plug on the outside. We tested it, and it worked perfectly. We are very happy. Thanks guys....!"

SCOTT & Debbie C on October 2025


Burant Heating And Air Conditioning

4.46(
13
)
Approved Pro

Burant Heating And Air Conditioning

4.46(
13
)
Approved Pro
Customers say: Terrific value
29 years of experience
Free onsite estimate

At Mamayek Heating & Cooling, Inc., we’ve specialized in comprehensive HVAC services, including installations and repairs, catering to the residential sector of Colgate, WI since 1995. Over a span of 25 years, our hands-on approach has refined our expertise, allowing us to manage projects meticulously from inception to culmination. Our commitment to overseeing every detail and embracing challenges distinguishes us from the rest. We devise solutions others might shy away from, viewing them as too intricate. This tenacity, bolstered by our immense experience, has cemented our position as the primary choice for heating and cooling needs in the region. When we’re on the job, your family’s comfort is our topmost priority. Our dedication to maintaining the highest standards of indoor air quality means we’re always striving for perfection. Simply put, we’re not comfortable until you are. Each service visit reaffirms our pledge to provide quality, underscoring our ceaseless commitment to the communities we cherish. Our enduring legacy, deeply rooted in dedication and a passion for excellence, serves as a testament to our unwavering promise to the families that rely on us.

"Very professional. They arrived and went right to work, keeping me posted along the way. Years of experience and they provided maintenanance updates to take the best care."

Pam P on March 2024

At Mamayek Heating & Cooling, Inc., we’ve specialized in comprehensive HVAC services, including installations and repairs, catering to the residential sector of Colgate, WI since 1995. Over a span of 25 years, our hands-on approach has refined our expertise, allowing us to manage projects meticulously from inception to culmination. Our commitment to overseeing every detail and embracing challenges distinguishes us from the rest. We devise solutions others might shy away from, viewing them as too intricate. This tenacity, bolstered by our immense experience, has cemented our position as the primary choice for heating and cooling needs in the region. When we’re on the job, your family’s comfort is our topmost priority. Our dedication to maintaining the highest standards of indoor air quality means we’re always striving for perfection. Simply put, we’re not comfortable until you are. Each service visit reaffirms our pledge to provide quality, underscoring our ceaseless commitment to the communities we cherish. Our enduring legacy, deeply rooted in dedication and a passion for excellence, serves as a testament to our unwavering promise to the families that rely on us.

"Very professional. They arrived and went right to work, keeping me posted along the way. Years of experience and they provided maintenanance updates to take the best care."

Pam P on March 2024

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Heating and Air Conditioning questions, answered by experts

After a while, dust, dirt, and other debris accumulates on an AC unit's coils and filters, making it less efficient and spreading allergens and other air pollutants throughout your home. Cleaning your AC unit will keep it running efficiently, minimizing future breakdowns and improving your indoor air quality.

If you don’t clean your AC coils, dirt and debris build up inside your unit, making transferring heat more difficult. As a result, your HVAC system will work harder to run, potentially increasing your energy usage and utility bills. Neglected coils may also become corroded, which can lead to refrigerant leaks and mold growth—both of which can cause a slew of negative health impacts.

You should get anywhere from three to five quotes for HVAC replacement to get an idea of the average cost of a new unit. Although this quote-collecting process can be time consuming, it allows you to compare what work is required, what type of unit you should install, and how much you should expect to pay for the service.

If your AC runs constantly, it could be due to a number of things, including a faulty thermostat, incorrect temperature settings, or broken equipment. Alternatively, you might have an airflow problem (for example, blocked vents or leaky ductwork). Either way, an HVAC pro can identify the specific problem and fix it for you.

You should service your AC at least once per year, in the spring, and twice per year if your unit is 10 years or older. As your unit ages, more maintenance can catch problems early and help the system reach its full lifespan potential, usually 15 years.

Get on your HVAC technician’s schedule in early spring so your unit is ready to go for the season. If you’re doing two inspections per year, aim for one in the spring and one in the fall. You should also service your furnace once per year in the fall.

The Oconomowoc, WI homeowners’ guide to heating and air conditioning services

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

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