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    Average homeowner rating
  • Verified reviews icon614
    Verified boiler repairs reviews

Find Boiler repair pros in Harlingen

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 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 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


"Matthew and his co worker were second to none in terms of professionalism,quality of service and affability.You have a plumbing problem…Mr.Rooter of Brownsville,TX is your answer."

Ramona R on May 2025

Mr. Rooter Plumbing of Brownsville is the best choice for all of plumbing needs. With over 10 years combined experience we can do it all. We take pride in our customer satisfaction. Call us today! We look forward in working with you, for years to come.

"Matthew and his co worker were second to none in terms of professionalism,quality of service and affability.You have a plumbing problem…Mr.Rooter of Brownsville,TX is your answer."

Ramona R on May 2025




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Boiler Repair questions, answered by experts

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.

Steam boilers require flushing at least every six to 12 months to keep them operating effectively for as long as possible. Depending on your water quality and frequency of use, you might need to do this more frequently. The flushing process helps to remove problematic buildup of sediments. While a boiler contractor near you can perform a thorough annual flush, learning how to drain the system yourself means you can do this monthly if you experience speedy mineral accumulation because of hard water. 

A home radiator works by using radiation and convection to transfer heat throughout your home. Electric radiators use metal to conduct heat and warm the air, which then rises to warm the room. Steam and hot water radiators work with a boiler and piping system to pump thermal energy throughout the home. Hot water radiators use a boiler to heat the water before circulating it to the radiator, while steam heating radiator systems convert the heated water to steam before circulating it out. When the water or steam cools, it travels back to the boiler to be heated again.

No, there isn’t always water in radiators. In a one-pipe system, water is constantly circulating from the boiler to the radiators and back. In a two-pipe system, water travels through two separate channels: one that goes to your radiators and one that returns back to the boiler so it can heat up again.

The best time to buy home heating oil is in the summer when the demand is lowest, as the prices are usually lower. However, waiting until the summer to buy is often unavoidable unless you install a separate storage tank. If you have the space for a second tank, you can expect to pay between $1,000 and $4,000 for the oil tank replacement or installation, depending on the capacity and location. You could quickly recuperate these costs, though, by stocking up on heating oil in the summer and avoiding deliveries in the winter when prices are highest.

The Harlingen, TX homeowners’ guide to boiler repairs

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