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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon522
    Verified boiler repairs reviews

Find Boiler repair pros in Alton

Avatar for Cytech Heating & Cooling L C

Cytech Heating & Cooling L C

6840 N Interstate 69C
4.75(
93
)
Approved Pro

Cytech Heating & Cooling L C

6840 N Interstate 69C
4.75(
93
)
Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
84 local quotes requested

Comfort, Quality, and Value ... Every Time! At Cytech Heating & Cooling, your home comfort is our highest concern. That’s why we supply lasting HVAC equipment and do outstanding work in the Rio Grande Valley. Our professionals are educated in a complete range of services, so you can feel confident in the results you have. They’ll offer the assistance you are looking for, whether it’s putting in a new HVAC system or servicing and inspecting your current unit. We’re available to provide support for all of your needs, so ring us at (956) 804-5921 to get an appointment today.

"Professional and answered my questions."

Marilyn R on April 2025

Comfort, Quality, and Value ... Every Time! At Cytech Heating & Cooling, your home comfort is our highest concern. That’s why we supply lasting HVAC equipment and do outstanding work in the Rio Grande Valley. Our professionals are educated in a complete range of services, so you can feel confident in the results you have. They’ll offer the assistance you are looking for, whether it’s putting in a new HVAC system or servicing and inspecting your current unit. We’re available to provide support for all of your needs, so ring us at (956) 804-5921 to get an appointment today.

"Professional and answered my questions."

Marilyn R on April 2025


Avatar for Dr Cool and Mr Heat LLC

Dr Cool and Mr Heat LLC

516 North Los Ebanos Rd
4.60(
5
)
Approved Pro

Dr Cool and Mr Heat LLC

516 North Los Ebanos Rd
4.60(
5
)
Approved Pro
Customers say: Quality work
2 years of experience
Free onsite estimate

30+ years of combined experience We are 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.

"AC was fixed quick, on a warm Sunday, and for a reasonable price. Dr. Cool and Mr Heat get it back to normal quick."

Eric Z on March 2025

30+ years of combined experience We are 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.

"AC was fixed quick, on a warm Sunday, and for a reasonable price. Dr. Cool and Mr Heat get it back to normal quick."

Eric Z on March 2025


Avatar for Frank's Construction

Frank's Construction

PO Box 905
5.00(
2
)
Approved Pro

Frank's Construction

PO Box 905
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
23 years of experience

Frank's Construction 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 customer's interests, and make their concerns the basis of our business.

"The work has been great and no complaints at all."

Policarpio C on August 2022

Frank's Construction 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 customer's interests, and make their concerns the basis of our business.

"The work has been great and no complaints at all."

Policarpio C on August 2022


Avatar for DHE Fratti Construction

DHE Fratti Construction

408 East Kuhn Street
5.00(
5
)
Approved Pro

DHE Fratti Construction

408 East Kuhn Street
5.00(
5
)
Approved Pro
Customers say: Quality work
15 local quotes requested
45 years of experience

THE FRATTI, LLC Construction, 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.

"I am very happy with the job done by DHE Fratti Const. They did an awesome job from start to finish. The team was professional, respectful and very attentive. I highly recommend them for anyone needing a cement slab for their future porch. Thanks for the job well done. "

Mari S on August 2025

THE FRATTI, LLC Construction, 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.

"I am very happy with the job done by DHE Fratti Const. They did an awesome job from start to finish. The team was professional, respectful and very attentive. I highly recommend them for anyone needing a cement slab for their future porch. Thanks for the job well done. "

Mari S on August 2025


Avatar for Trio Empire Heating & Cooling

Trio Empire Heating & Cooling

131 South 10th Street
5.00(
4
)
Approved Pro

Trio Empire Heating & Cooling

131 South 10th Street
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

We're dedicated to providing our clients with the very best in service, and repair for your heating and cooling needs. Our company is built on honesty and integrity with over 15 years of experience. We specialize in central A/C and cooling systems as well as heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Tito and Venessa did an excellent job on our central air, blower and even replaced a breaker that needed fixing. Arrived as scheduled and highly recommended. AC working awesome and cold air. Thank you Trio Empire Heating and Cooling for your awesome professional service."

Amal E on June 2024

We're dedicated to providing our clients with the very best in service, and repair for your heating and cooling needs. Our company is built on honesty and integrity with over 15 years of experience. We specialize in central A/C and cooling systems as well as heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Tito and Venessa did an excellent job on our central air, blower and even replaced a breaker that needed fixing. Arrived as scheduled and highly recommended. AC working awesome and cold air. Thank you Trio Empire Heating and Cooling for your awesome professional service."

Amal E on June 2024


AJs Heating & Cooling

4301 E Ingle Rd
5.00(
3
)
Approved Pro

AJs Heating & Cooling

4301 E Ingle Rd
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

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!

"Our AC was not working and it was extremely hot out. This amazing company showed up same day and fixed the issue. Customer service was the best I have experienced in the valley. We will be using this company every time and referring it to others!"

Dustin K on May 2023

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!

"Our AC was not working and it was extremely hot out. This amazing company showed up same day and fixed the issue. Customer service was the best I have experienced in the valley. We will be using this company every time and referring it to others!"

Dustin K on May 2023


Avatar for Farrell Plumbing & Cooling, Inc.

Farrell Plumbing & Cooling, Inc.

412 Professional Dr
4.44(
84
)
Approved Pro

Farrell Plumbing & Cooling, Inc.

412 Professional Dr
4.44(
84
)
Approved Pro
Customers say: Quality work
21 local quotes requested
47 years of experience

Farrell Plumbing & Cooling, Inc., has been in business since 1979 performing top quality plumbing and mechanical services to Southern Texas. We service the Rio Grande Valley areas for all types of plumbing and HVAC project needs. We offer air conditioning, furnaces, pipes, gas piping, water heating, and all other types of plumbing and mechanical services. Call us today for a consultation on what we can do to solve your problem quickly and affordably.

"Pat was awesome and had my new water heater was installed and working in no time!"

Christal M on February 2025

Farrell Plumbing & Cooling, Inc., has been in business since 1979 performing top quality plumbing and mechanical services to Southern Texas. We service the Rio Grande Valley areas for all types of plumbing and HVAC project needs. We offer air conditioning, furnaces, pipes, gas piping, water heating, and all other types of plumbing and mechanical services. Call us today for a consultation on what we can do to solve your problem quickly and affordably.

"Pat was awesome and had my new water heater was installed and working in no time!"

Christal M on February 2025



EPA certified HVAC technician Honest and fair pricing for my services Repairs Maintain AC units Change out thermostat Charge unit with refrigerants


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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.

Addressing banging, clanging, and hissing radiators involves several steps. Start by bleeding the radiator to release trapped air, a common source of noise. Next, ensure all valves, brackets, and pipes are securely tightened to prevent the components from rattling. You can also consider installing radiator insulation to dampen heat expansion sounds. If you perform all of these fixes and the noise persists, explore the use of radiator additives that can mitigate water-related noises. If all else fails, you should consult an HVAC professional.

The absence of heating or hot water, unusual noises like banging or gurgling, and visible water leakage are key signs. Abnormal boiler pressure, flame irregularities (for gas boilers), or pilot light issues may also signal trouble. Frequent cycling, soot or staining, and unusual odors, particularly gas-like smells, should not be ignored. Modern boilers often display error codes or lockout mode upon detecting issues. Uneven heating across radiators and rising energy bills without increased usage can further point to problems. Prompt attention to these signs is essential to prevent further damage and ensure safety.

Boilers are equipped with multiple safety features to ensure safe operation. These include pressure relief valves to prevent overpressure, temperature high-limit switches to avoid overheating, and flame failure safety devices in gas boilers to cut off the gas supply if the flame goes out unexpectedly. Low water cutoffs prevent operation with insufficient water levels, and pressure gauges help monitor pressure levels. Ventilation and flue systems prevent the buildup of harmful gasses. Boilers often feature error code systems for automatic shutdown during malfunctions and gas leak detection for safety. Regular maintenance is crucial to ensure these safety features function correctly.

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 Alton, TX homeowners’ guide to boiler repairs

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

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