Top-rated boiler repair pros.

Get matched with top boiler repair pros in Randolph, WI

There are 5 highly-rated local boiler repair pros.

Need a pro for your boiler repair project in Randolph, WI?

Select your specific project to find the pro for you.

TRUSTED BY RANDOLPH, WI HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon37
    Verified boiler repairs reviews

Find Boiler repair pros in Randolph

Avatar for Arctic Air Heating, Cooling, & Refrigeration

Arctic Air Heating, Cooling, & Refrigeration

PO Box 86
4.90(
10
)
Approved Pro

Arctic Air Heating, Cooling, & Refrigeration

PO Box 86
4.90(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
121 local quotes requested

Kelchner’s Arctic Air has been the heating and cooling service Southeast Wisconsin 25 years. We service all makes and models of furnaces, air conditioners, and refrigeration systems. We offer 24 hr emergency services so whenever you need our services, we are there for you. Kelchner’s Arctic Air was founded on the philosophy of value, quality, performance, integrity, and safety. These principles are still followed today as we build long term relationships with our customers while being committed to their needs. We take a great deal of pride in every job that we preform and treat every job as if it were our own home. We do the job right the first time so there are no more annoying call backs for your system not working properly. That is why we offer a 100% satisfaction guarantee on any of the work we perform. Call us today for your refrigeration, duct cleaning, heating and cooling in southeast Wisconsin at 262-719-7508.

"earg ewe eegwe"

Jamis B on February 2025

Kelchner’s Arctic Air has been the heating and cooling service Southeast Wisconsin 25 years. We service all makes and models of furnaces, air conditioners, and refrigeration systems. We offer 24 hr emergency services so whenever you need our services, we are there for you. Kelchner’s Arctic Air was founded on the philosophy of value, quality, performance, integrity, and safety. These principles are still followed today as we build long term relationships with our customers while being committed to their needs. We take a great deal of pride in every job that we preform and treat every job as if it were our own home. We do the job right the first time so there are no more annoying call backs for your system not working properly. That is why we offer a 100% satisfaction guarantee on any of the work we perform. Call us today for your refrigeration, duct cleaning, heating and cooling in southeast Wisconsin at 262-719-7508.

"earg ewe eegwe"

Jamis B on February 2025


Avatar for Aqua Well & Pump Systems, Inc

Aqua Well & Pump Systems, Inc

124 Oakridge Dr
4.60(
70
)
Approved Pro

Aqua Well & Pump Systems, Inc

124 Oakridge Dr
4.60(
70
)
Approved Pro
Customers say: True professional
85 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 Southport Home Services

Southport Home Services

3304 Dairy Dr.
5.00(
5
)
Approved Pro

Southport Home Services

3304 Dairy Dr.
5.00(
5
)
Approved Pro
115 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.


Avatar for JB Mechanical, LLC

JB Mechanical, LLC

119 West Water Street
4.88(
30
)
Approved Pro

JB Mechanical, LLC

119 West Water Street
4.88(
30
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
54 local quotes requested

JB Mechanical, LLC, is your premier choice for all of your HVAC needs in Beaver Dam, Wisconsin and surrounding areas. No project is too big or too small, so call today and let us put our experience to work for you!

"Prompt service, courteous technucians"

Sandra G on March 2023

JB Mechanical, LLC, is your premier choice for all of your HVAC needs in Beaver Dam, Wisconsin and surrounding areas. No project is too big or too small, so call today and let us put our experience to work for you!

"Prompt service, courteous technucians"

Sandra G on March 2023


Rising Sun Comfort Solutions LLC

5.00(
3
)

Rising Sun Comfort Solutions LLC

5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Rising Sun Comfort Solutions LLC is newly formed and ready to tackle all of your HVAC needs. We are family owned and operated with a focus on honest service and quality work. With almost 25 years of HVAC employment, our small but experienced team can do it all! From tiny homes to high-rises and everything in between….Rising Sun Comfort Solutions LLC wants to be your heating and cooling professionals. “People over Profit…Always the Right Price!” This is our motto and we stand by it, test it out and give us a call. Thanks for your time!

"We recently noticed a gas leak coming from our furnace and called Rising Sun right away. They came out very promptly to take care of it. They were extremely professional and friendly throughout the whole process. Jamie is truly the best — knowledgeable, kind, and efficient. We felt safe and well taken care of thanks to their quick response and excellent service. We highly recommend Rising Sun!"

Ashley N on May 2025

Rising Sun Comfort Solutions LLC is newly formed and ready to tackle all of your HVAC needs. We are family owned and operated with a focus on honest service and quality work. With almost 25 years of HVAC employment, our small but experienced team can do it all! From tiny homes to high-rises and everything in between….Rising Sun Comfort Solutions LLC wants to be your heating and cooling professionals. “People over Profit…Always the Right Price!” This is our motto and we stand by it, test it out and give us a call. Thanks for your time!

"We recently noticed a gas leak coming from our furnace and called Rising Sun right away. They came out very promptly to take care of it. They were extremely professional and friendly throughout the whole process. Jamie is truly the best — knowledgeable, kind, and efficient. We felt safe and well taken care of thanks to their quick response and excellent service. We highly recommend Rising Sun!"

Ashley N on May 2025



Cu handyman services

7439 Latham Road
5.00(
14
)

Cu handyman services

7439 Latham Road
5.00(
14
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Hi my name is Craig I own cu handyman services LLC I am fully insured and have been in the maintenance field for 42 years. I repair appliance, light electrical, plumbing, storm door instillations and some light carpentry I also repair lawn mowers. Hire me and it will be done right the first time.

"Great! The sink was installed"

Cory M on April 2025

Hi my name is Craig I own cu handyman services LLC I am fully insured and have been in the maintenance field for 42 years. I repair appliance, light electrical, plumbing, storm door instillations and some light carpentry I also repair lawn mowers. Hire me and it will be done right the first time.

"Great! The sink was installed"

Cory M on April 2025




Custom Electric & HVAC

5.00(
1
)

Custom Electric & HVAC

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Custom Electric & HVAC serves its customers with pride, integrity and attention to the details that matter most to you. I have over 25 years of quality experience in all forms of home HVAC and Electrical services. We go beyond the call of duty to give our clients the results they deserve. We are locally owned and operated and look forward to working with you. Give us a call or click for an estimate today!

"Dave was very prompt about scheduling an appointment to meet with us about our electrical work. We had to run 240V out to a detached garage and then install an EV charger. He was very good about following up with us at every step and even told us when he was running late so that we didn't have to be concerned about when he was going to arrive. The electrical work was of excellent quality and the price was definitely reasonable. We will call Dave again when we have electrical work to be done and have already recommended him to neighbors."

James C on May 2023

Custom Electric & HVAC serves its customers with pride, integrity and attention to the details that matter most to you. I have over 25 years of quality experience in all forms of home HVAC and Electrical services. We go beyond the call of duty to give our clients the results they deserve. We are locally owned and operated and look forward to working with you. Give us a call or click for an estimate today!

"Dave was very prompt about scheduling an appointment to meet with us about our electrical work. We had to run 240V out to a detached garage and then install an EV charger. He was very good about following up with us at every step and even told us when he was running late so that we didn't have to be concerned about when he was going to arrive. The electrical work was of excellent quality and the price was definitely reasonable. We will call Dave again when we have electrical work to be done and have already recommended him to neighbors."

James C on May 2023

...
Showing 1-10 of 153
Boiler Repair questions, answered by experts

If you're often struggling with radiator issues like chilly spots, leaks, or annoying noises, those are common indications that your radiator may need to be replaced. Corrosion, uneven heating, and persistent hissing sounds are common issues as well. When repairs become a regular chore and your home’s energy bills start to rise, a new radiator will bring the comfort and savings you need.

Although boilers can last 15 to 20 years when maintained properly, you may run into some common problems like oil burners and transformers malfunctioning; cracks in the heat exchanger; clogs in the heating oil pump, burner nozzles, or fuel pipes; loose wiring connections; and damaged valves. Many of these problems can be caught early on during annual maintenance services. You might also have an issue with your fuel source if you have a gas or oil boiler. Make sure your other gas appliances are working or that you have oil in your tank.

If you don't clean a boiler, you may have higher energy bills or no heat. A dirty boiler is inefficient and can't properly maintain a heating system. It may break down more often due to corrosion or clogs from soot and oil buildup. Cleaning a boiler improves its performance. The cost to replace a boiler can be expensive, so keeping it clean is a cost-effective practice.

Once you know where your bleed valves are and how to use them, bleeding out heaters is a quick process. Expect it to take around 10 to 20 minutes, possibly longer if you have a lot of heaters or are still learning how they work. If you have a central bleed valve on your boiler, the process still takes the same amount of time. Make sure you have any keys necessary to turn the bleed valves on. Without bleed valves, the process should take around three hours.

Some of the signs of HVAC issues include rising energy bills, rooms not cooling or heating properly, loud noises when in operation, and signs of condensation. To illustrate, if you’re wondering how to stop condensation on air vents, you’ll need to have your HVAC inspected. 

By submitting this question, I acknowledge and agree that Angi may publicly display my name, city, state, and question on the website for professionals and others to see.

The Randolph, WI homeowners’ guide to boiler repairs

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