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Find Boiler repair pros in Bethlehem

Avatar for Casteel Heating, Cooling, Plumbing & Electrical

Casteel Heating, Cooling, Plumbing & Electrical

4.74(
88
)
Approved Pro

Casteel Heating, Cooling, Plumbing & Electrical

4.74(
88
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
439 local quotes requested

At Casteel Heating, Cooling, Plumbing and Electrical, we provide world-class service to our customers, just as we have since 1987. Founded by Jan and Bob Casteel, our company was built on honesty and customer-focused care. To this day, we offer our Amazing Care Guarantee: We’ll take amazing care of you or we’ll refund your service call fee. Our expert team of plumbers, electricians, HVAC technicians, and system design managers performs top-quality repairs and installations while ensuring you are completely satisfied with your entire customer service. Because we offer so many services under one roof, you’ll save time and money by making one phone call to Casteel. Formerly: Knight Air Conditioning and Heating Company

"Thumbs up for the construction at my residence, a three story elevator shaft"

Diana D on October 2024

At Casteel Heating, Cooling, Plumbing and Electrical, we provide world-class service to our customers, just as we have since 1987. Founded by Jan and Bob Casteel, our company was built on honesty and customer-focused care. To this day, we offer our Amazing Care Guarantee: We’ll take amazing care of you or we’ll refund your service call fee. Our expert team of plumbers, electricians, HVAC technicians, and system design managers performs top-quality repairs and installations while ensuring you are completely satisfied with your entire customer service. Because we offer so many services under one roof, you’ll save time and money by making one phone call to Casteel. Formerly: Knight Air Conditioning and Heating Company

"Thumbs up for the construction at my residence, a three story elevator shaft"

Diana D on October 2024


Avatar for Keep Smiling Plumbing & Electric

Keep Smiling Plumbing & Electric

4.66(
133
)
Approved Pro

Keep Smiling Plumbing & Electric

4.66(
133
)
Approved Pro
Customers say: Super punctual
1542 local quotes requested
40 years of experience

Keep Smiling Plumbing Electric Heating and Cooling is a family-owned, family-operated, full-service plumbing electric and HVAC business, serving Gwinnett County, Georgia. We are Master Plumbers and members of the Plumbing & Mechanical Association of Georgia. Keep Smiling Plumbing & Electric is there when you need us, ready to take care of any problem that you may have with your plumbing or electrical systems. We also have available a full line of quality replacement products if you want to upgrade or update.

"When facing unexpected plumbing issues, Keep Smiling provided truly excellent service. Their Technician was punctual, transparent, and highly skilled."

Dorothea G on November 2025

Keep Smiling Plumbing Electric Heating and Cooling is a family-owned, family-operated, full-service plumbing electric and HVAC business, serving Gwinnett County, Georgia. We are Master Plumbers and members of the Plumbing & Mechanical Association of Georgia. Keep Smiling Plumbing & Electric is there when you need us, ready to take care of any problem that you may have with your plumbing or electrical systems. We also have available a full line of quality replacement products if you want to upgrade or update.

"When facing unexpected plumbing issues, Keep Smiling provided truly excellent service. Their Technician was punctual, transparent, and highly skilled."

Dorothea G on November 2025


Avatar for Bardi Heating, Cooling & Plumbing

Bardi Heating, Cooling & Plumbing

4.07(
85
)
Approved Pro

Bardi Heating, Cooling & Plumbing

4.07(
85
)
Approved Pro
Customers say: Super punctual
36 years of experience
Free onsite estimate

Family owned since 1989, Bardi is rated A+ by the Better Business Bureau, was awarded Business of the Year in 2013 by the Gwinnett Chamber and received Best Customer Service by the BBB. Bardi is heavily involved with the community and offers free electronics pick-up and recycling during service calls to benefit Nobis Works, a nonprofit that supports people with disabilities seeking to join the workforce.

"I requested a HVAC tech come out to my home as my AC was not working properly. The tech recommended that I get a new AC. He told me he would have his sales rep come out to talk to me about the options I would have as far as replacing it. Their sales rep showed up. His name is Jimmy, and he told me all these great things about Bardi and their products. We came to an agreement of my buying a cheap HVAC system as I was trying to save money. It would cost me 12,000 dollars for the system. The next day April 5th, 2025 their install tech came out and installed the equipment. I was at work at the time, but I had a family member there. I returned home to find out the lower level of my home was not being cooled, and they had left part of my old HVAC system connected to the new system. It was a burnt up disconnect that should have been replaced and was a major part of what was wrong with my old system. Also they used a panel cover from my old system instead of new. I asked Jimmy to come and pick up the equipment which it states I have three days to reject the equipment in the contract. He expressed that I couldn't reject the equipment after it was installed. They had a tech come out the next day April 6, 2025 to fix the downstairs not working, and he fixed it. The next day it happened to be cold outside so I turned on the heat. No heat was coming out of the vents just cool air and the fan unit was running extremely loud outside. It was so loud it sounded like the fan unit was in my room on the second floor, so I turned it off. When I did turn off the fan unit made a horrible exploding noise. Once again I called Bardi and asked them to come get their HVAC system, they refused. Crystal the customer care rep is who I spoke with. She scheduled another repair tech to come out on April 12th to look at the HVAC system. I waited the entire day and no one showed up. I finally called and the receptionist told me it was their employee appreciation day no one would be coming. Monday I received a call from Crystal their customer care rep stating she text me and told me no one would be coming, but I never received that text. She scheduled another appointment for Easter Sunday. I stayed home Easter Sunday instead of going to church, and no one showed up again. I've stated each and every time I've spoken with someone from Bardi that I don't want to do business with them but they are basically trying to force me to keep their equipment at this point. This is by far the worst customer service experience I've ever had. These people are trying to rip their customers off basically. This should be illegal. I've reach out to get a lawyer to force them to remove their equipment from my home. Stay away from these people at all cost."

Sean S on April 2025

Family owned since 1989, Bardi is rated A+ by the Better Business Bureau, was awarded Business of the Year in 2013 by the Gwinnett Chamber and received Best Customer Service by the BBB. Bardi is heavily involved with the community and offers free electronics pick-up and recycling during service calls to benefit Nobis Works, a nonprofit that supports people with disabilities seeking to join the workforce.

"I requested a HVAC tech come out to my home as my AC was not working properly. The tech recommended that I get a new AC. He told me he would have his sales rep come out to talk to me about the options I would have as far as replacing it. Their sales rep showed up. His name is Jimmy, and he told me all these great things about Bardi and their products. We came to an agreement of my buying a cheap HVAC system as I was trying to save money. It would cost me 12,000 dollars for the system. The next day April 5th, 2025 their install tech came out and installed the equipment. I was at work at the time, but I had a family member there. I returned home to find out the lower level of my home was not being cooled, and they had left part of my old HVAC system connected to the new system. It was a burnt up disconnect that should have been replaced and was a major part of what was wrong with my old system. Also they used a panel cover from my old system instead of new. I asked Jimmy to come and pick up the equipment which it states I have three days to reject the equipment in the contract. He expressed that I couldn't reject the equipment after it was installed. They had a tech come out the next day April 6, 2025 to fix the downstairs not working, and he fixed it. The next day it happened to be cold outside so I turned on the heat. No heat was coming out of the vents just cool air and the fan unit was running extremely loud outside. It was so loud it sounded like the fan unit was in my room on the second floor, so I turned it off. When I did turn off the fan unit made a horrible exploding noise. Once again I called Bardi and asked them to come get their HVAC system, they refused. Crystal the customer care rep is who I spoke with. She scheduled another repair tech to come out on April 12th to look at the HVAC system. I waited the entire day and no one showed up. I finally called and the receptionist told me it was their employee appreciation day no one would be coming. Monday I received a call from Crystal their customer care rep stating she text me and told me no one would be coming, but I never received that text. She scheduled another appointment for Easter Sunday. I stayed home Easter Sunday instead of going to church, and no one showed up again. I've stated each and every time I've spoken with someone from Bardi that I don't want to do business with them but they are basically trying to force me to keep their equipment at this point. This is by far the worst customer service experience I've ever had. These people are trying to rip their customers off basically. This should be illegal. I've reach out to get a lawyer to force them to remove their equipment from my home. Stay away from these people at all cost."

Sean S on April 2025


Franklin's Septic

5.00(
16
)
Approved Pro

Franklin's Septic

5.00(
16
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
38 local quotes requested

Franklin's Septic has been in business since 1979. We offer complete septic care. Check us out on the bbb.org website today. Call us today for a great deal!

"I contacted Mr. Franklin for what I thought was regular maintenance. I had never had the septic pumped before and was unsure where the tank was located as there were no visible indication of the piping. Mr. Franklin poked around but could not locate the piping so he contacted the County Health Department and obtained a copy of the blue print outlining the location of the septic tank. Turns out the line was inactive and the tank did not need to be pumped. After all the trouble Mr. Franklin went through between the drive out here, the hour he spent poking around trying to find the septic tank and waiting for the county to call back, he refused to accept any money from me. He would not even accept a trip charge. In a world were honesty just doesn't seem to exist anymore, it is so good to know that there are still trustworthy businesses out there! Mr. Franklin's knowledge of what to look for toppled with the time he took just to educate me is just priceless! I wish all businesses was like Franklin Septic!"

Gail H on August 2022

Franklin's Septic has been in business since 1979. We offer complete septic care. Check us out on the bbb.org website today. Call us today for a great deal!

"I contacted Mr. Franklin for what I thought was regular maintenance. I had never had the septic pumped before and was unsure where the tank was located as there were no visible indication of the piping. Mr. Franklin poked around but could not locate the piping so he contacted the County Health Department and obtained a copy of the blue print outlining the location of the septic tank. Turns out the line was inactive and the tank did not need to be pumped. After all the trouble Mr. Franklin went through between the drive out here, the hour he spent poking around trying to find the septic tank and waiting for the county to call back, he refused to accept any money from me. He would not even accept a trip charge. In a world were honesty just doesn't seem to exist anymore, it is so good to know that there are still trustworthy businesses out there! Mr. Franklin's knowledge of what to look for toppled with the time he took just to educate me is just priceless! I wish all businesses was like Franklin Septic!"

Gail H on August 2022


Pendley and Sons Plumbing - Home Facebook

5.00(
2
)
Approved Pro

Pendley and Sons Plumbing - Home Facebook

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

Pendley & Sons Plumbing our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote.

"He was very thorough with the work that he did for me. He explained everything to the best of his knowledge. He was very down to earth."

Marcus on May 2021

Pendley & Sons Plumbing our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote.

"He was very thorough with the work that he did for me. He explained everything to the best of his knowledge. He was very down to earth."

Marcus on May 2021


Avatar for ALLY Air & Refrigeration, LLC

ALLY Air & Refrigeration, LLC

5.00(
3
)
Approved Pro

ALLY Air & Refrigeration, LLC

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

ALLY Air & Refrigeration, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"You can't go wrong with their level of integrity to fix your unit right. I've used their team more than once and each time it was an honest repair, no hidden agendas. Like a great mechanic/doctor they become your GO TO when you need one every time!"

GABRIEL R on August 2023

ALLY Air & Refrigeration, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"You can't go wrong with their level of integrity to fix your unit right. I've used their team more than once and each time it was an honest repair, no hidden agendas. Like a great mechanic/doctor they become your GO TO when you need one every time!"

GABRIEL R on August 2023


Avatar for SunDry Waterproofing, Inc.

SunDry Waterproofing, Inc.

4.38(
236
)
Approved Pro

SunDry Waterproofing, Inc.

4.38(
236
)
Approved Pro
Customers say: True professional
142 local quotes requested
19 years of experience

With business starting in 1995, SunDry Waterproofing, has been setting the standard for great customer service and top-notch workmanship. We take pride in our work and it shows. Our attention to detail is unmatched. You will see what separates us from our competition with every project we complete. Our clients love that we are fast and efficient without ever compromising quality. We take the time to listen to you in order to give you the best options available for your project. With experience and an attitude of our clients first, your experience with us will be great every time. Why not work with the best? Feel free to contact us at 678-969-9080 for a no cost, no obligation, evaluation and estimate.

"."

David W on September 2025

With business starting in 1995, SunDry Waterproofing, has been setting the standard for great customer service and top-notch workmanship. We take pride in our work and it shows. Our attention to detail is unmatched. You will see what separates us from our competition with every project we complete. Our clients love that we are fast and efficient without ever compromising quality. We take the time to listen to you in order to give you the best options available for your project. With experience and an attitude of our clients first, your experience with us will be great every time. Why not work with the best? Feel free to contact us at 678-969-9080 for a no cost, no obligation, evaluation and estimate.

"."

David W on September 2025


Avatar for SunDry Waterproofing, Inc.

SunDry Waterproofing, Inc.

4.38(
236
)
Approved Pro

SunDry Waterproofing, Inc.

4.38(
236
)
Approved Pro
Customers say: True professional
19 years of experience
Free onsite estimate

With business starting in 1995, SunDry Waterproofing, has been setting the standard for great customer service and top-notch workmanship. We take pride in our work and it shows. Our attention to detail is unmatched. You will see what separates us from our competition with every project we complete. Our clients love that we are fast and efficient without ever compromising quality. We take the time to listen to you in order to give you the best options available for your project. With experience and an attitude of our clients first, your experience with us will be great every time. Why not work with the best? Feel free to contact us at 678-969-9080 for a no cost, no obligation, evaluation and estimate.

"."

David W on September 2025

With business starting in 1995, SunDry Waterproofing, has been setting the standard for great customer service and top-notch workmanship. We take pride in our work and it shows. Our attention to detail is unmatched. You will see what separates us from our competition with every project we complete. Our clients love that we are fast and efficient without ever compromising quality. We take the time to listen to you in order to give you the best options available for your project. With experience and an attitude of our clients first, your experience with us will be great every time. Why not work with the best? Feel free to contact us at 678-969-9080 for a no cost, no obligation, evaluation and estimate.

"."

David W on September 2025


"We have just moved into a rental property and someone had put the oven racks in backwards, which makes it impossible to remove them. They advised me on what to try. No charge, just generous professional advice. We will use All My Appliance Repsir whenever we have a problem. We encourage everyone to do so."

Denise S on October 2025

We are local to Metro Atlanta and have highly trained technicians who specialize in appliance repair for all your home appliances. Our goal is to provide top-notch customer service along with quality warranted parts and labor.

"We have just moved into a rental property and someone had put the oven racks in backwards, which makes it impossible to remove them. They advised me on what to try. No charge, just generous professional advice. We will use All My Appliance Repsir whenever we have a problem. We encourage everyone to do so."

Denise S on October 2025


Avatar for Trend Mechanical LLC

Trend Mechanical LLC

4.90(
10
)
Approved Pro

Trend Mechanical LLC

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

Trend mechanical LLC heating &A/C has provided owners in the Walton & Gwinnett area with high quality, professionals repair for years. We are licensed, insured ventilation, heating and air conditioning contractor with years of experience working with all types, brands and models heating and air conditioners.we can handle the installation, repairs, service and maintenance work for any HVAC system.

"Trend Mechanical did an amazing job. They were very transparent, and communication throughout the whole process was great. They were affordable and timely compared to the competition. I highly recommend them."

J H on August 2024

Trend mechanical LLC heating &A/C has provided owners in the Walton & Gwinnett area with high quality, professionals repair for years. We are licensed, insured ventilation, heating and air conditioning contractor with years of experience working with all types, brands and models heating and air conditioners.we can handle the installation, repairs, service and maintenance work for any HVAC system.

"Trend Mechanical did an amazing job. They were very transparent, and communication throughout the whole process was great. They were affordable and timely compared to the competition. I highly recommend them."

J H on August 2024

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Boiler Repair questions, answered by experts

Generally speaking, yes, turning one radiator off does save some money, especially if the system is a little older—so long as you’re not cranking up the dial on the ones you leave on. But some HVAC specialists argue that keeping your entire system on ensures that your boiler stays efficient. After all, it’s rated to fit your home and heats the amount of water your heating system needs. This could be the case if you have a new system. However, turning radiators off in unused rooms lowers the amount of hot water you need.

There are many signs and symptoms to look out for that can indicate that your HVAC system needs repair, including the following:

  • Your indoor air is uncomfortably hot or cold.

  • Your energy bills suddenly increase without explanation.

  • Your AC is blowing warm air or not blowing air at all.

  • You notice leaks around your HVAC equipment.

  • Your equipment makes unusual noises during operation.

  • You notice strange odors coming from your equipment.

  • You notice that the humidity in your home is higher than normal.

  • The thermostat no longer seems to match the actual temperature.

Yes, cleaning a boiler is essential for its efficient and safe operation. Over time, boilers can accumulate dirt, rust, sediment, and mineral deposits, reducing efficiency, increasing energy consumption, and causing potential breakdowns. Cleaning involves removing these deposits from various components like heat exchangers, burners, and pipes. Neglecting cleaning can also lead to corrosion and decreased life span. Regular, yearly maintenance, including cleaning, ensures optimal performance, lower energy bills, and a safer heating system. It's best to consult the boiler's manual or hire a professional technician for cleaning to ensure the job is done right.

Yes, it is OK to turn off some radiators, and you’ll save money on heating costs if you make it a regular habit to turn your radiators off in unused rooms that don’t need heat. That said, turn them back on when you need to heat your whole home instead of cranking up the dial on the ones you haven’t closed to compensate. The latter will result in higher heating costs and more wear and tear on your system.

To maintain a boiler and ensure it works optimally, regularly read the temperature and pressure gauges on the unit to ensure they're within the limits described in your owner's manual. Lubricate the circulating pump according to the manufacturer's instructions. Check the water level in the expansion tank and open the tank valve to drain it if it's more than half full.

The Bethlehem, GA homeowners’ guide to boiler repairs

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