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Heating and air conditioning pros in Williams Bay

Avatar for Vincent Plumbing & Heating
Vincent Plumbing & Heating
W304 S 3925 Brookhill Road
4.74(
352
)
Approved Pro
Vincent Plumbing & Heating
W304 S 3925 Brookhill Road
4.74(
352
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
29 years of experience

Need hot water fast? Vincent Plumbing has been the trusted name in plumbing for over 30 years, providing top-quality water heater installation, repair, and maintenance for homeowners like you. ✔ Licensed, Insured & Bonded – Quality You Can Trust ✔ Expert Installation & Repairs for All Water Heater Brands ✔ Traditional & Tankless Water Heater Specialists ✔ Same-Day & Emergency Service Available ✔ Upfront Pricing – No Hidden Fees, No Surprises

"Excellent service, extremely responsive, much better price than others we called, great installation, took extra time to answer questions when purchasing and when installing. Vincent Plumbing has been our plumbing/heating company for years. We highly recommend them!"

Tom T on April 2024

Need hot water fast? Vincent Plumbing has been the trusted name in plumbing for over 30 years, providing top-quality water heater installation, repair, and maintenance for homeowners like you. ✔ Licensed, Insured & Bonded – Quality You Can Trust ✔ Expert Installation & Repairs for All Water Heater Brands ✔ Traditional & Tankless Water Heater Specialists ✔ Same-Day & Emergency Service Available ✔ Upfront Pricing – No Hidden Fees, No Surprises

"Excellent service, extremely responsive, much better price than others we called, great installation, took extra time to answer questions when purchasing and when installing. Vincent Plumbing has been our plumbing/heating company for years. We highly recommend them!"

Tom T on April 2024


Avatar for One Hour Heating & Air Conditioning of Southeastern Wisconsin
One Hour Heating & Air Conditioning of Southeastern Wisconsin
13205 GLOBE DR STE 210
5.00(
10
)
Approved Pro
One Hour Heating & Air Conditioning of Southeastern Wisconsin
13205 GLOBE DR STE 210
5.00(
10
)
Approved Pro
Customers say: Quick response
158 local quotes requested
23 years of experience

Our team at One Hour Heating & Air Conditioning is proud to be recognized in Southeastern Wisconsin for our excellent customer service and high-quality work. We've developed strong relationships with our customers because we put their needs first. Whether you need to repair your air conditioner, improve the air quality in your home, install a new heater, we are here to help. We provide more than promises to our customers'we back up our work with a 100% satisfaction guarantee. If you contact our team, you can trust that we will get the job done right the first time.

"Helpful"

Mary M on February 2025

Our team at One Hour Heating & Air Conditioning is proud to be recognized in Southeastern Wisconsin for our excellent customer service and high-quality work. We've developed strong relationships with our customers because we put their needs first. Whether you need to repair your air conditioner, improve the air quality in your home, install a new heater, we are here to help. We provide more than promises to our customers'we back up our work with a 100% satisfaction guarantee. If you contact our team, you can trust that we will get the job done right the first time.

"Helpful"

Mary M on February 2025


Avatar for 24 Hour Home Comfort Services, Inc.
24 Hour Home Comfort Services, Inc.
9209 S. Route 31
4.83(
194
)
Approved Pro
24 Hour Home Comfort Services, Inc.
9209 S. Route 31
4.83(
194
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
63 years of experience

Welcome to 24 Hour Home Comfort Services, Inc.! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you! Check out our website at www.24hrhcsIL.com!

"nothing"

Henry B on February 2023

Welcome to 24 Hour Home Comfort Services, Inc.! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you! Check out our website at www.24hrhcsIL.com!

"nothing"

Henry B on February 2023


Avatar for Master Services, Inc.
Master Services, Inc.
N3481 County Rd H
4.59(
229
)
Approved Pro
Master Services, Inc.
N3481 County Rd H
4.59(
229
)
Approved Pro
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
120 local quotes requested

Master Services Inc. has been in business since 1990 serving Walworth, Jefferson, Kenosha, Racine, Waukesha counties with ELITE Plumbing, Heating, Air Conditioning and Indoor Air Quality service. We pride ourselves with our 100% money back guarantee. We are only 1 in 4 companies in Wisconsin that are certified to wear the Technician Seal of Safety patch. This means you can trust that each one of our technicians are drug tested, background checked and professionally trained. We have one of our office staff answering the phone 24 hours a day 7 days a week." We Think You're Kind of a Big Deal"

"Customer service was great! Respectful and polite."

James M on January 2025

Master Services Inc. has been in business since 1990 serving Walworth, Jefferson, Kenosha, Racine, Waukesha counties with ELITE Plumbing, Heating, Air Conditioning and Indoor Air Quality service. We pride ourselves with our 100% money back guarantee. We are only 1 in 4 companies in Wisconsin that are certified to wear the Technician Seal of Safety patch. This means you can trust that each one of our technicians are drug tested, background checked and professionally trained. We have one of our office staff answering the phone 24 hours a day 7 days a week." We Think You're Kind of a Big Deal"

"Customer service was great! Respectful and polite."

James M on January 2025


Master Services, Inc.
N3481 County Rd H
4.22(
46
)
Approved Pro
Master Services, Inc.
N3481 County Rd H
4.22(
46
)
Approved Pro
Customers say: Super punctual
360 local quotes requested
35 years of experience

Master Services is a world-class provider of residential home services such as: Plumbing, Heating, Air Conditioning, Indoor Air Quality and Drain Cleaning. These Products and services are for improving comfort, reliability, peace of mind, plus cleaner, fresher, and healthier homes. In addition to scheduled service checks, repairing of existing equipment, and installation of new equipment, we can help you find ways to reduce your energy bills through a thorough cost-benefits analysis. We have an extensive history of repair service on all brands of plumbing, central air conditioning and heating systems. Master Services, Inc provides quality workmanship with professional, dependable, and courteous service with our "Fixed Right or It's FREE!"™ We offer 24-hour emergency service so that you can count on us to be there when you need us the most. Our certified technicians use state-of-the-art technology to diagnose and repair existing systems and always use the finest new equipment for installations in the industry. Furthermore, we have a patented Straight Forward Pricing Guide™ so you know what the price is before we do the work and you are never charged by the hour. How many companies are willing to show you their price books? You can count on Master Services to do the job right. We service all brands of plumbing, heating and air conditioning equipment.

"Wonderful. They installers and service techs were very courteous, professional and knowledgeable. Would absolutely recommend to anyone looking for a great company to start a relationship with"

Daniel G on February 2023

Master Services is a world-class provider of residential home services such as: Plumbing, Heating, Air Conditioning, Indoor Air Quality and Drain Cleaning. These Products and services are for improving comfort, reliability, peace of mind, plus cleaner, fresher, and healthier homes. In addition to scheduled service checks, repairing of existing equipment, and installation of new equipment, we can help you find ways to reduce your energy bills through a thorough cost-benefits analysis. We have an extensive history of repair service on all brands of plumbing, central air conditioning and heating systems. Master Services, Inc provides quality workmanship with professional, dependable, and courteous service with our "Fixed Right or It's FREE!"™ We offer 24-hour emergency service so that you can count on us to be there when you need us the most. Our certified technicians use state-of-the-art technology to diagnose and repair existing systems and always use the finest new equipment for installations in the industry. Furthermore, we have a patented Straight Forward Pricing Guide™ so you know what the price is before we do the work and you are never charged by the hour. How many companies are willing to show you their price books? You can count on Master Services to do the job right. We service all brands of plumbing, heating and air conditioning equipment.

"Wonderful. They installers and service techs were very courteous, professional and knowledgeable. Would absolutely recommend to anyone looking for a great company to start a relationship with"

Daniel G on February 2023


Nordic Air Heating and Cooling
Based In
5.00(
7
)
Approved Pro
Nordic Air Heating and Cooling
Based In
5.00(
7
)
Approved Pro
Customers say: Quick response
744 local quotes requested

We are a growing fast paced southeastern WI locally owned HVAC company that provides skilled and professional work with over 20 years experience in the Heating and Cooling industry we do it all from Furnace and AC tune ups to complete new home HVAC system designs! Not only is the quality of work guaranteed to exceed expectations but the cost of our work is also guaranteed to be the best in the industry with our unique pricing structure that under cuts the competition!

"They didn`t do anything they came out ,they supposed to come next week after the order apart. I never heard back from the guy. I am a hundred dollars down deposit. He claimed that was supposed to be for they was going to wave the diagnostic fee that was for the parts in the service, never came back out. I haven`t heard from him."

Glenn G on January 2025

We are a growing fast paced southeastern WI locally owned HVAC company that provides skilled and professional work with over 20 years experience in the Heating and Cooling industry we do it all from Furnace and AC tune ups to complete new home HVAC system designs! Not only is the quality of work guaranteed to exceed expectations but the cost of our work is also guaranteed to be the best in the industry with our unique pricing structure that under cuts the competition!

"They didn`t do anything they came out ,they supposed to come next week after the order apart. I never heard back from the guy. I am a hundred dollars down deposit. He claimed that was supposed to be for they was going to wave the diagnostic fee that was for the parts in the service, never came back out. I haven`t heard from him."

Glenn G on January 2025


Avatar for KETTLE MORAINE HEATING & AIR CONDITIONING LLC
KETTLE MORAINE HEATING & AIR CONDITIONING LLC
W325S1767 Mickle Rd
4.78(
129
)
Approved Pro
KETTLE MORAINE HEATING & AIR CONDITIONING LLC
W325S1767 Mickle Rd
4.78(
129
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
649 local quotes requested

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

"Technician Jim was not impressive. Was not confident when answering the questions I asked. Very contradicting.. Tried to sell product for items that were not even in need of repair. Spoke negatively about the company and made excuses as to why he could not perform his job due to lack of information from dispatch or technician manager. Said he would follow up, I never heard from him. Blessing to me, I decided to go with another HVAC company. I typically would not put names out there, but please be careful if you get this gentleman as a technician."

Lindsey M on December 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

"Technician Jim was not impressive. Was not confident when answering the questions I asked. Very contradicting.. Tried to sell product for items that were not even in need of repair. Spoke negatively about the company and made excuses as to why he could not perform his job due to lack of information from dispatch or technician manager. Said he would follow up, I never heard from him. Blessing to me, I decided to go with another HVAC company. I typically would not put names out there, but please be careful if you get this gentleman as a technician."

Lindsey M on December 2022



Komfort Heating & Cooling
5384 State Rd 11
4.67(
15
)
Komfort Heating & Cooling
5384 State Rd 11
4.67(
15
)
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

Additional email - robin@komfortheating.com and nick.m@komfortheating.com. Additional DBA - Komfort Heating & Cooling Inc, Komfort Sales & Service.

Additional email - robin@komfortheating.com and nick.m@komfortheating.com. Additional DBA - Komfort Heating & Cooling Inc, Komfort Sales & Service.


Adams Electric Inc
504A Nathan Ln
4.46(
24
)
Adams Electric Inc
504A Nathan Ln
4.46(
24
)
Customers say: Quality work
38 years of experience

Since 1987 Adams Electric has been creating electrical solutions for every need in southeastern Wisconsin and Northern Illinois. We are a family owned and operated business that knows the value of integrity, quality and hard work. Our professional and friendly staff makes it their aim to exceed your expectations and do so with maximum safety practices. We are a full-service electrical contractor specializing in complex industrial, commercial, farm and residential applications as well as standby power solutions. We are southeastern Wisconsin's premier standby power providers, specializing in the sale, installation and maintenance of Generac generators-the world's leading standby power company. With a fleet of 22 vehicles, our highly skilled crew is available and willing to provide 24-hour emergency service. With Adams Electric you are provided not only with excellent workmanship, but pricing that is fair. Our warranty support services provide you a safe and easy way to make sure you are getting the best product and service you possibly can. At Adams Electric we are passionate about providing power solutions for you and your business. Experience for yourself why customers call Adams Electric "the best".

"I had an incredibly disappointing experience with Adams Electric, and I feel compelled to share my story so others can be aware. Over the past few months, Adams Electric has failed to complete electrical work that was promised, left my home in disarray, and charged outrageous fees for unresolved issues—including a $540 bill for a toilet that still doesn’t work after three visits. I personally went to their office in tears, asking for help, and my concerns were completely ignored. I have sent multiple requests for resolution, yet I have received no accountability or action from their leadership. As a company that claims to be faith-based and community-driven, their lack of integrity is deeply disappointing. I will be pursuing every possible avenue to get the resolution I deserve, including reporting them to consumer protection agencies and escalating this issue publicly if needed. I sincerely hope Adams Electric chooses to do the right thing and take responsibility for their actions."

Sarah H on February 2025

Since 1987 Adams Electric has been creating electrical solutions for every need in southeastern Wisconsin and Northern Illinois. We are a family owned and operated business that knows the value of integrity, quality and hard work. Our professional and friendly staff makes it their aim to exceed your expectations and do so with maximum safety practices. We are a full-service electrical contractor specializing in complex industrial, commercial, farm and residential applications as well as standby power solutions. We are southeastern Wisconsin's premier standby power providers, specializing in the sale, installation and maintenance of Generac generators-the world's leading standby power company. With a fleet of 22 vehicles, our highly skilled crew is available and willing to provide 24-hour emergency service. With Adams Electric you are provided not only with excellent workmanship, but pricing that is fair. Our warranty support services provide you a safe and easy way to make sure you are getting the best product and service you possibly can. At Adams Electric we are passionate about providing power solutions for you and your business. Experience for yourself why customers call Adams Electric "the best".

"I had an incredibly disappointing experience with Adams Electric, and I feel compelled to share my story so others can be aware. Over the past few months, Adams Electric has failed to complete electrical work that was promised, left my home in disarray, and charged outrageous fees for unresolved issues—including a $540 bill for a toilet that still doesn’t work after three visits. I personally went to their office in tears, asking for help, and my concerns were completely ignored. I have sent multiple requests for resolution, yet I have received no accountability or action from their leadership. As a company that claims to be faith-based and community-driven, their lack of integrity is deeply disappointing. I will be pursuing every possible avenue to get the resolution I deserve, including reporting them to consumer protection agencies and escalating this issue publicly if needed. I sincerely hope Adams Electric chooses to do the right thing and take responsibility for their actions."

Sarah H on February 2025

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Heating and air conditioning services FAQs

Yes, most states require HVAC technicians to be certified, and for good reason. Hiring an uncertified HVAC pro could lead to poor quality work, costly future expenses, and potential code violations. A certified HVAC technician tackling your home projects protects you as a homeowner.

As you browse our pro listings, take note of the “Angi Certified” badge. Angi Certified businesses meet our standards for certification which include: 

  • The owner, principal, or relevant manager passed a criminal background check

  • Required to have applicable state and local licenses

  • Maintain an average star rating of 3.0 or better on our network, if they have at least one review

  • Paying to advertise their services

  • Meeting any other eligibility criteria required by Angi

Knowing how long your existing HVAC units can last is essential to determine if you need a repair or replacement. Typically, most modern air conditioning units can last between 15 to 20 years, and most furnaces can work properly for 15 to 30 years. If your HVAC system is on the older side and you decide to replace one unit, it might make sense to replace both simultaneously to save on costs and future hassle.

While different HVAC contractors might offer higher or lower prices than competitors, the best time to replace your HVAC system is when customer demand is low. The beginning of summer and the beginning of winter bring the most demand for HVAC systems, so if you can, consider replacing your HVAC units in the early spring or fall. Many HVAC companies offer special off-season coupons that help lower the overall cost.  

The average cost to hire an HVAC contractor is between $50 and $150 per hour if charging hourly. However, some HVAC contractors will charge a flat fee by the type of service they are performing—for example, an inspection can cost between $150 to $500. Keep in mind that emergency repairs—which are made after business hours or around major holidays—generally cost more than scheduled repairs.

The average cost of HVAC repairs is around $350. However, that price can be as low as $100 or as high as $2,000 or more, depending on the repair. For example, replacing a capacitor is a relatively inexpensive repair, ranging from $100 to $500. However, a compressor repair is a more expensive repair, ranging from $750 to $2,000.  

The homeowners guide to heating and air conditioning services
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