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    Average homeowner rating
  • Verified reviews icon425
    Verified boiler repairs reviews

Find Boiler repair pros in Waunakee

Avatar for Cardinal Heating & Air Conditioning

Cardinal Heating & Air Conditioning

4.88(
140
)
Approved Pro

Cardinal Heating & Air Conditioning

4.88(
140
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
160 local quotes requested

Since 1984, Cardinal Heating, Cooling, Plumbing & Electric has provided the Sun Prairie, WI and the surrounding area with exceptional Heating, Air Conditioning, Electrical and Plumbing services. We offer professional technicians, same-day installations and 24-hour emergency service. We believe we are the right choice for any of your HVAC, Plumbing, or Electrical needs. Call today to schedule your next appointment!

"Had an old fixture above kitchen sink go kaput (fluorescent starter disintegrated), so Cardinal came out and offered LED alternatives (two provided, brought on-hand from supply warehouse). Also fixed a switched outlet that had shorted out. Great work done, nice alternatives for the LED light, and switched outlet was wired to be always-on for one socket and switched for the other -- better than it was before at no additional cost. Later I called to ask the exact serial and model number of the LED light because the papers left did not state it. Not only did I get an email a couple hours later with the model/serial, the tech included the detailed documentation for the fixture so if anything goes wrong I can likely fix it myself next time. The tech who did the work also applied a 10% off discount card for me with no extra hassle, saving me close to $100 on the work."

Joe K on November 2025

Since 1984, Cardinal Heating, Cooling, Plumbing & Electric has provided the Sun Prairie, WI and the surrounding area with exceptional Heating, Air Conditioning, Electrical and Plumbing services. We offer professional technicians, same-day installations and 24-hour emergency service. We believe we are the right choice for any of your HVAC, Plumbing, or Electrical needs. Call today to schedule your next appointment!

"Had an old fixture above kitchen sink go kaput (fluorescent starter disintegrated), so Cardinal came out and offered LED alternatives (two provided, brought on-hand from supply warehouse). Also fixed a switched outlet that had shorted out. Great work done, nice alternatives for the LED light, and switched outlet was wired to be always-on for one socket and switched for the other -- better than it was before at no additional cost. Later I called to ask the exact serial and model number of the LED light because the papers left did not state it. Not only did I get an email a couple hours later with the model/serial, the tech included the detailed documentation for the fixture so if anything goes wrong I can likely fix it myself next time. The tech who did the work also applied a 10% off discount card for me with no extra hassle, saving me close to $100 on the work."

Joe K on November 2025


Avatar for Aire Serv of Madison

Aire Serv of Madison

3.00(
2
)
Approved Pro

Aire Serv of Madison

3.00(
2
)
Approved Pro
18 years of experience
Free onsite estimate

Aire Serv is a full-service HVAC company dedicated to providing exceptional heating, ventilation, and air conditioning solutions for both residential and commercial clients. We specialize in a wide range of services, including regular maintenance, expert repairs, and same-day service for all types of HVAC systems. Whether you need a quick repair, a complete HVAC replacement, or are embarking on a new construction project, our team of highly trained professionals is here to ensure your systems run smoothly and efficiently. Our services also include comprehensive duct cleaning, dryer vent cleaning, and ductwork modifications to enhance air quality, system performance, and energy efficiency. We understand the importance of a comfortable indoor environment, and we are committed to delivering prompt, reliable, and affordable solutions tailored to meet your specific needs. We pride ourselves on customer satisfaction, ensuring that every job is completed to the highest standards.

"The technician did a great job when he came out to look at the unit. He fixed one and found a leak in the other one. I needed a quote for my home insurance company. Turns our Aire Serve Pro is in collaboration with the home warranty company to get as much of the repair as possible to not be covered by my home warranty. They would not give me a normal quote of time and materials. They would only give me a quote where all the costs are wrapped into a per pound of refrigerant cost. This drastically increases the cost per pound of refrigerant by 10x. You can literally buy 410a refrigerant for $10 per pound (see attached) but they wanted to charge $151 per pound with all the costs rolled in. The insurance company then says....we only pay the market rate of $10/pound for refrigerant and I have to pay the difference. Which means the insurance company only covers 10% of the repair. The woman said because I went thru insurance they had to do it this way and could give me a time/material quot"

Kevin P on July 2025

Aire Serv is a full-service HVAC company dedicated to providing exceptional heating, ventilation, and air conditioning solutions for both residential and commercial clients. We specialize in a wide range of services, including regular maintenance, expert repairs, and same-day service for all types of HVAC systems. Whether you need a quick repair, a complete HVAC replacement, or are embarking on a new construction project, our team of highly trained professionals is here to ensure your systems run smoothly and efficiently. Our services also include comprehensive duct cleaning, dryer vent cleaning, and ductwork modifications to enhance air quality, system performance, and energy efficiency. We understand the importance of a comfortable indoor environment, and we are committed to delivering prompt, reliable, and affordable solutions tailored to meet your specific needs. We pride ourselves on customer satisfaction, ensuring that every job is completed to the highest standards.

"The technician did a great job when he came out to look at the unit. He fixed one and found a leak in the other one. I needed a quote for my home insurance company. Turns our Aire Serve Pro is in collaboration with the home warranty company to get as much of the repair as possible to not be covered by my home warranty. They would not give me a normal quote of time and materials. They would only give me a quote where all the costs are wrapped into a per pound of refrigerant cost. This drastically increases the cost per pound of refrigerant by 10x. You can literally buy 410a refrigerant for $10 per pound (see attached) but they wanted to charge $151 per pound with all the costs rolled in. The insurance company then says....we only pay the market rate of $10/pound for refrigerant and I have to pay the difference. Which means the insurance company only covers 10% of the repair. The woman said because I went thru insurance they had to do it this way and could give me a time/material quot"

Kevin P on July 2025


Avatar for KJM Plumbing

KJM Plumbing

4.90(
275
)
Approved Pro

KJM Plumbing

4.90(
275
)
Approved Pro
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
39 local quotes requested

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. 7 days a week. Call us today to learn more about how we can help you.

"great"

Jem H on June 2025

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. 7 days a week. Call us today to learn more about how we can help you.

"great"

Jem H on June 2025


Avatar for WireOne

WireOne

4.43(
195
)
Approved Pro

WireOne

4.43(
195
)
Approved Pro
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
188 local quotes requested

WIREONE is working to become the leading electrical contractor in the region through a customer-centric approach that provides our clients with the absolute best electrical services available. Our journeyman electricians are some of the most positively reviewed electricians in the industry. They consistently receive five-star reviews on sites such as Facebook and Google. We begin each residential service call with a client conference during which we’ll sit down with you to discuss your project and any related electrical needs. After gaining a complete understanding of your goals, we’ll perform our complimentary 57-point “Keep it Safe Inspection” to ensure that the electrical system in your home is performing safely and in conformance with local building codes. Then, before any work begins, we’ll provide you with Our Best Price. Our Best Price will be the most cost-effective way to complete your project quickly and safely. We also include a 5 year warranty on all work performed!

"It took 1hr & 15min"

Christen C on October 2025

WIREONE is working to become the leading electrical contractor in the region through a customer-centric approach that provides our clients with the absolute best electrical services available. Our journeyman electricians are some of the most positively reviewed electricians in the industry. They consistently receive five-star reviews on sites such as Facebook and Google. We begin each residential service call with a client conference during which we’ll sit down with you to discuss your project and any related electrical needs. After gaining a complete understanding of your goals, we’ll perform our complimentary 57-point “Keep it Safe Inspection” to ensure that the electrical system in your home is performing safely and in conformance with local building codes. Then, before any work begins, we’ll provide you with Our Best Price. Our Best Price will be the most cost-effective way to complete your project quickly and safely. We also include a 5 year warranty on all work performed!

"It took 1hr & 15min"

Christen C on October 2025


Avatar for Southport Home Services

Southport Home Services

5.00(
5
)
Approved Pro

Southport Home Services

5.00(
5
)
Approved Pro
117 local quotes requested
20 years of experience

At Southport Home Services, we're A+ rated by the BBB. Our technicians are NATE certified to meet national standards of excellence, and we're a Carrier® Factory Authorized Dealer, recently cited as the top medium-sized business to work for by the Milwaukee Journal Sentinel. We treat our team well and hold them to high professional standards. Our up front, transparent pricing, great customer service, and honesty in our business practices make us the plumbing and HVAC company that you'll feel good working with on a regular basis, with 100% satisfaction guaranteed.

At Southport Home Services, we're A+ rated by the BBB. Our technicians are NATE certified to meet national standards of excellence, and we're a Carrier® Factory Authorized Dealer, recently cited as the top medium-sized business to work for by the Milwaukee Journal Sentinel. We treat our team well and hold them to high professional standards. Our up front, transparent pricing, great customer service, and honesty in our business practices make us the plumbing and HVAC company that you'll feel good working with on a regular basis, with 100% satisfaction guaranteed.


Adler Plumbing, LLC

New on AngiNew on Angi
Approved Pro

Adler Plumbing, LLC

New on AngiNew on Angi
Approved Pro
2 years of experience
Free onsite estimate

Welcome to Adler Plumbing, LLC! In business since 2023, we are a full service plumbing company who takes great pride in the quality of our work and guarantees customer satisfaction. We specialize in all service and repair for both residential and commercial properties, and no job is too big or too small. Serving Cross Plains and its surrounding areas, be sure to give us a call today!

Welcome to Adler Plumbing, LLC! In business since 2023, we are a full service plumbing company who takes great pride in the quality of our work and guarantees customer satisfaction. We specialize in all service and repair for both residential and commercial properties, and no job is too big or too small. Serving Cross Plains and its surrounding areas, be sure to give us a call today!


Avatar for KJM Plumbing

KJM Plumbing

5.00(
21
)
Approved Pro

KJM Plumbing

5.00(
21
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
71 local quotes requested

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. 7 days a week. Call us today to learn more about how we can help you.

"KJM Plumbing was GREAT! Recommended a person to repair the sink and adjusted the schedule so that they could promptly reconnect the plumbing when the job was done. I am very happy with their service and will use them again in the future."

Sue F on August 2025

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. 7 days a week. Call us today to learn more about how we can help you.

"KJM Plumbing was GREAT! Recommended a person to repair the sink and adjusted the schedule so that they could promptly reconnect the plumbing when the job was done. I am very happy with their service and will use them again in the future."

Sue F on August 2025


Affordable Quality Heating & Air Conditioning, LLC

5.00(
6
)
Approved Pro

Affordable Quality Heating & Air Conditioning, LLC

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

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Professional, efficient, friendly, and thorough. Highly recommend Ben and Affordable Quality Heating and AC."

Mike S on October 2024

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Professional, efficient, friendly, and thorough. Highly recommend Ben and Affordable Quality Heating and AC."

Mike S on October 2024


Avatar for Aqua Well & Pump Systems Inc

Aqua Well & Pump Systems Inc

4.60(
70
)
Approved Pro

Aqua Well & Pump Systems Inc

4.60(
70
)
Approved Pro
Customers say: True professional
52 local quotes requested
38 years of experience

Aqua Well & Pump Systems, Inc., is a 3rd generation; family owned & operated, well and pump service company, serving all of Southeastern Wisconsin. Our mission at Aqua is to provide our customers with a safe, reliable water supply, while safe guarding & promoting the protection of our most precious resource. To accomplish this mission, Aqua is dedicated to investing in promotion, equipment, & most of all people who share the same core values of knowledge, integrity, hard work, & honesty. Aqua provides pump & well drilling service for residential, industrial, commercial, & farm applications. services.

"They were quick and efficient"

Carol F on September 2025

Aqua Well & Pump Systems, Inc., is a 3rd generation; family owned & operated, well and pump service company, serving all of Southeastern Wisconsin. Our mission at Aqua is to provide our customers with a safe, reliable water supply, while safe guarding & promoting the protection of our most precious resource. To accomplish this mission, Aqua is dedicated to investing in promotion, equipment, & most of all people who share the same core values of knowledge, integrity, hard work, & honesty. Aqua provides pump & well drilling service for residential, industrial, commercial, & farm applications. services.

"They were quick and efficient"

Carol F on September 2025


Avatar for Catalyst Custom Construction

Catalyst Custom Construction

5.00(
8
)
Approved Pro

Catalyst Custom Construction

5.00(
8
)
Approved Pro
Customers say: Quality work
45 local quotes requested
10 years of experience

Established in 2015, Catalyst Custom Construction is the local leader in home construction, home additions, kitchen remodels, bathroom remodels, and basement finishing. We spec in homes that you can live in forever. We build new executive homes for you and your whole family with your families touches. We know Madison homes and understand when you want to keep the character in your old home with new flair. We are a building contractor that is ready to make your vision into a reality. We pride ourselves on the quality, integrity and craftsmanship that goes into every job. Give us a call or send us an email to set up a consultation about your next project!

"It went outstanding! They weren't any inconveiniece, great communication, had everything ready to go."

Scott B on March 2019

Established in 2015, Catalyst Custom Construction is the local leader in home construction, home additions, kitchen remodels, bathroom remodels, and basement finishing. We spec in homes that you can live in forever. We build new executive homes for you and your whole family with your families touches. We know Madison homes and understand when you want to keep the character in your old home with new flair. We are a building contractor that is ready to make your vision into a reality. We pride ourselves on the quality, integrity and craftsmanship that goes into every job. Give us a call or send us an email to set up a consultation about your next project!

"It went outstanding! They weren't any inconveiniece, great communication, had everything ready to go."

Scott B on March 2019

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Boiler Repair questions, answered by experts

A home radiator lasts anywhere from 15 to 20 years with proper maintenance. If your unit is approaching the 15-year mark, it’s a good idea to inspect your system and consider upgrading the radiator to a new one. Older models are less efficient over time compared to newer, energy-efficient radiators.

It can be difficult to determine the cause of a coolant leak unless you have the unit inspected by a certified professional. Most coolant leaks are caused by wear and tear on seals and joints. This typically happens five years after a unit is installed. Additionally, faulty or worn compressors, evaporator coils, and condenser coils can also cause leaks.

After you receive your audit and report, review the findings and determine which of the prescribed changes you want to make to improve your home’s energy efficiency. Start by contacting the type of professionals recommended by the auditor who can help you remedy the issues discovered during the audit. Prioritize the projects by urgency, importance, and budget. Then, gather estimates from several professionals, remembering to verify any necessary licensing and experience information.

Oil boilers provide reliable heating, efficiency, and long-term cost savings compared to electric options.

Scale from hard water is hard to diagnose until it starts causing problems. If your area has particularly hard water, that’s most likely what your boiler is using. If scale build-up becomes a problem, it starts to cause decreased flow and heating, and eventually, valve failures as valves become blocked. Let boiler professionals know if you’re worried about scale and they can offer advice or implement a solution.

The Waunakee, WI homeowners’ guide to boiler repairs

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

What do you need done? We’ll find top pros.
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