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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon3.6k+
    Verified boiler repairs reviews

Verified Reviews for Boiler Repair pros in Gaithersburg, MD

*The Angi rating for Boiler Repair companies in Gaithersburg, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Repair needs.

*The HomeAdvisor rating for Boiler Repair companies in Gaithersburg, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Repair needs.

Last update on December 01, 2025

Find Boiler repair pros in Gaithersburg

Avatar for Fred and Son Plumbing

Fred and Son Plumbing

4.82(
66
)
•Approved Pro

Fred and Son Plumbing

4.82(
66
)
•Approved Pro
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
18 local quotes requested

About Us: Fred & Son Plumbing is a dedicated business that works diligently and efficiently to ensure that your plumbing needs are taken care of within one visit so that your home can be in its best shape. Fred & Son Plumbing is available for your multiple plumbing needs, whether these needs are required for your home, or for your residential needs. Therefore, you can trust Fred & Son Plumbing for lasting results, this is our promise! Our Business: We understand that plumbing is an essential part of everyone's life, thus we ensure that any plumbing device that you require installed into your home is in stock. For these reasons we promise to give you the best price around and also promise a one year warrenty on any plumbing job performed by one of our trained technicians. Our estimate is free and your satisfaction is guaranteed. Who We Are: Fred & Son Plumbing has over 20 years of expertise. When it comes to quality service you can count on us. We are known for being on time and keeping your home as clean as it was before our service(s). We provide a full array of Residential services for your convenience. We are locally available! Special Discounts: -Senior Citizen Discounts -Military Discounts -Teacher Discounts -New Customer Discounts *FREE ESTIMATES

"We have depended on Fred and Son for expert plumbing help for years now. Today it was Joe who did the installation, and we couldn't be happier with his work. Equally important, we appreciate how friendly, considerate, and professional he was throughout his visit. We will continue to have Fred and Joe on speed dial!"

SUSAN B on November 2022

About Us: Fred & Son Plumbing is a dedicated business that works diligently and efficiently to ensure that your plumbing needs are taken care of within one visit so that your home can be in its best shape. Fred & Son Plumbing is available for your multiple plumbing needs, whether these needs are required for your home, or for your residential needs. Therefore, you can trust Fred & Son Plumbing for lasting results, this is our promise! Our Business: We understand that plumbing is an essential part of everyone's life, thus we ensure that any plumbing device that you require installed into your home is in stock. For these reasons we promise to give you the best price around and also promise a one year warrenty on any plumbing job performed by one of our trained technicians. Our estimate is free and your satisfaction is guaranteed. Who We Are: Fred & Son Plumbing has over 20 years of expertise. When it comes to quality service you can count on us. We are known for being on time and keeping your home as clean as it was before our service(s). We provide a full array of Residential services for your convenience. We are locally available! Special Discounts: -Senior Citizen Discounts -Military Discounts -Teacher Discounts -New Customer Discounts *FREE ESTIMATES

"We have depended on Fred and Son for expert plumbing help for years now. Today it was Joe who did the installation, and we couldn't be happier with his work. Equally important, we appreciate how friendly, considerate, and professional he was throughout his visit. We will continue to have Fred and Joe on speed dial!"

SUSAN B on November 2022

Avatar for R & G Water Systems Inc

R & G Water Systems Inc

4.96(
55
)
•Approved Pro

R & G Water Systems Inc

4.96(
55
)
•Approved Pro
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
19 local quotes requested

R & G Water Systems carries, installs, services and repairs well pumps and water treatment and conditioning systems for residential and light commercial application. We also deal with acid neutralizers.

"Great! I called after hours and Rick was pleasant. He asked to text a picture of the leaking. Brad was here in the morning. One hour later he was finished The price was reasonable. Would definitely hire again"

Thomas S on December 2021

R & G Water Systems carries, installs, services and repairs well pumps and water treatment and conditioning systems for residential and light commercial application. We also deal with acid neutralizers.

"Great! I called after hours and Rick was pleasant. He asked to text a picture of the leaking. Brad was here in the morning. One hour later he was finished The price was reasonable. Would definitely hire again"

Thomas S on December 2021

Avatar for TriState Home Services

TriState Home Services

4.73(
181
)
•Approved Pro

TriState Home Services

4.73(
181
)
•Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
76 years of experience

If you are looking for a HVAC Contractor, a Plumbing Contractor, or an Electrical Contractor to provide you with great service, you've come to the right place. We provide heating services, air conditioning services, plumbing services, and electrical services to our customers in Frederick and the surrounding Counties, the Pan Handle of West Virginia, and Northern Virginia, from our offices located in Frederick MD. With 3 generations of experience in providing heating, air conditioning, plumbing, and electrical services, we are dedicated to providing the best possible products and services for you, and your family.

"Great service very prompt and easy to work with."

Randy W on May 2025

If you are looking for a HVAC Contractor, a Plumbing Contractor, or an Electrical Contractor to provide you with great service, you've come to the right place. We provide heating services, air conditioning services, plumbing services, and electrical services to our customers in Frederick and the surrounding Counties, the Pan Handle of West Virginia, and Northern Virginia, from our offices located in Frederick MD. With 3 generations of experience in providing heating, air conditioning, plumbing, and electrical services, we are dedicated to providing the best possible products and services for you, and your family.

"Great service very prompt and easy to work with."

Randy W on May 2025

F.H. Furr Plumbing Heating & Air Conditioning Inc

4.33(
15
)
•Approved Pro

F.H. Furr Plumbing Heating & Air Conditioning Inc

4.33(
15
)
•Approved Pro
Customers say: Super punctual
184 local quotes requested
44 years of experience

Whether you need a repair, preventive maintenance, or replacement, we are your plumbing, heating, and air conditioning service provider in the northern Virginia and surrounding areas. We invite you to give us a call!

"Nice, reliable, and responded immediately."

Ethan Q on January 2025

Whether you need a repair, preventive maintenance, or replacement, we are your plumbing, heating, and air conditioning service provider in the northern Virginia and surrounding areas. We invite you to give us a call!

"Nice, reliable, and responded immediately."

Ethan Q on January 2025

Avatar for Sila Heating, Cooling and Plumbing

Sila Heating, Cooling and Plumbing

4.64(
2,119
)
•Approved Pro

Sila Heating, Cooling and Plumbing

4.64(
2,119
)
•Approved Pro
Customers say: Super punctual
614 local quotes requested
36 years of experience

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"They charged $98 to come give me an estimate for swapping our a shower valve cartridge, which was fine, but the pricing they provided was completely unreasonable, $1,000. They were unwilling to provide any detail for the price. I ended up buy the part myself for $30 and replaced it in 30 minutes."

Tom A on October 2024

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"They charged $98 to come give me an estimate for swapping our a shower valve cartridge, which was fine, but the pricing they provided was completely unreasonable, $1,000. They were unwilling to provide any detail for the price. I ended up buy the part myself for $30 and replaced it in 30 minutes."

Tom A on October 2024

Avatar for JW Home Improvement

JW Home Improvement

4.39(
5,504
)
•Approved Pro

JW Home Improvement

4.39(
5,504
)
•Approved Pro
Customers say: Quality work
1744 local quotes requested
24 years of experience

JWHI provides world-class customer service with consistent and superior workmanship. We strive to be the trusted market leader in the home improvement industry. Proudly, we are Super Service Award Winner for over a decade, and we plan to keep that streak going! Contact us today to discuss your next handyman or remodeling project. Our mission is to provide you with a happy home improvement experience!

"Made appointment for them to come over for an estimate (which they charge for) between 9-12 today. They are a no show. I wasted the whole morning on them. DO NOT recommend."

Jeff H on October 2025

JWHI provides world-class customer service with consistent and superior workmanship. We strive to be the trusted market leader in the home improvement industry. Proudly, we are Super Service Award Winner for over a decade, and we plan to keep that streak going! Contact us today to discuss your next handyman or remodeling project. Our mission is to provide you with a happy home improvement experience!

"Made appointment for them to come over for an estimate (which they charge for) between 9-12 today. They are a no show. I wasted the whole morning on them. DO NOT recommend."

Jeff H on October 2025

Avatar for Glenmont Heating & A/C

Glenmont Heating & A/C

4.66(
61
)
•Approved Pro

Glenmont Heating & A/C

4.66(
61
)
•Approved Pro
Customers say: Super punctual
37 local quotes requested
41 years of experience

When Glenmont Heating & Air Conditioning was founded 28 years ago, we had one goal in mind; providing area families, and businesses with solutions that fit their lifestyles and needs, as well as their wallets. If you have any questions about heating and air conditioning maintenance, a new HVAC system, or are looking into installing a more energy efficient system, Glenmont Heating and Air is the solution to your needs.

"Not Recommended for Thermostat Replacement — Unreasonable and Unfair $700 Charge I do not recommend Glenmont Air Conditioning & Heating for thermostat replacement work. I was charged $700 for a simple thermostat replacement, which I believe was unreasonably high and unfair. I was under the impression that the quoted estimate represented the maximum expected cost only if the technician had to perform additional wiring or complex installation work. If you want to install an Ecobee or any other type of thermostat, you can simply YouTube the installation, which provides step-by-step instructions on how to unwire, label, and rewire to the new thermostat. For my installation, I was under the impression that additional wiring might be needed, but it turned out to be a straightforward swap of the old thermostat with a new Ecobee unit, a process that took only about 15 minutes. Despite that, I was still charged the full amount. The Ecobee Premium thermostat itself costs around $250, meaning they charged nearly $500 just for labor, regardless of how simple or quick the installation is. To make matters worse, the installation only comes with a 30-day warranty, which hardly justifies such a high price. I tried to communicate and explain that this charge was unreasonably high and unfair, but they simply said, “It is what it is.” If you’re considering a thermostat installation, I strongly suggest hiring a professional through Thumbtack, where qualified experts can do the same job for under $150 with transparent pricing and good service. I expected fairness, honesty, and reasonable pricing from Glenmont, but unfortunately, that was not my experience."

Soheil R on October 2025

When Glenmont Heating & Air Conditioning was founded 28 years ago, we had one goal in mind; providing area families, and businesses with solutions that fit their lifestyles and needs, as well as their wallets. If you have any questions about heating and air conditioning maintenance, a new HVAC system, or are looking into installing a more energy efficient system, Glenmont Heating and Air is the solution to your needs.

"Not Recommended for Thermostat Replacement — Unreasonable and Unfair $700 Charge I do not recommend Glenmont Air Conditioning & Heating for thermostat replacement work. I was charged $700 for a simple thermostat replacement, which I believe was unreasonably high and unfair. I was under the impression that the quoted estimate represented the maximum expected cost only if the technician had to perform additional wiring or complex installation work. If you want to install an Ecobee or any other type of thermostat, you can simply YouTube the installation, which provides step-by-step instructions on how to unwire, label, and rewire to the new thermostat. For my installation, I was under the impression that additional wiring might be needed, but it turned out to be a straightforward swap of the old thermostat with a new Ecobee unit, a process that took only about 15 minutes. Despite that, I was still charged the full amount. The Ecobee Premium thermostat itself costs around $250, meaning they charged nearly $500 just for labor, regardless of how simple or quick the installation is. To make matters worse, the installation only comes with a 30-day warranty, which hardly justifies such a high price. I tried to communicate and explain that this charge was unreasonably high and unfair, but they simply said, “It is what it is.” If you’re considering a thermostat installation, I strongly suggest hiring a professional through Thumbtack, where qualified experts can do the same job for under $150 with transparent pricing and good service. I expected fairness, honesty, and reasonable pricing from Glenmont, but unfortunately, that was not my experience."

Soheil R on October 2025

Avatar for Buric Heating and Air Conditioning

Buric Heating and Air Conditioning

4.65(
20
)
•Approved Pro

Buric Heating and Air Conditioning

4.65(
20
)
•Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
31 local quotes requested

**Call us today for a FREE ESTIMATE on Heating or AC system replacements!** With over 19 years of experience, Buric Heating and Air Conditioning is a full service residential heating and cooling company that has offered Ellicott City, MD and its surrounding areas with plenty of jobs well done. By offering straight forward pricing and free estimates on equipment installations or replacements, you can trust that they are the right HVAC professionals for you. Call today for your next appointment!

"They installed our AC system; that went fine. But several years later, when it needed repair. They came out and looked at the problem, and then ghosted me. They didn't return my multiple calls. When I finally got somebody else to come out to look at the problem, they told me that the warranty had just expired on the part that needed replacing. Putting 2 +2 together, Buric ghosted me to run out the clock on my warranty for the repair of the product they installed. Would you ever hire anybody who behaves like that???"

Noam S on June 2022

**Call us today for a FREE ESTIMATE on Heating or AC system replacements!** With over 19 years of experience, Buric Heating and Air Conditioning is a full service residential heating and cooling company that has offered Ellicott City, MD and its surrounding areas with plenty of jobs well done. By offering straight forward pricing and free estimates on equipment installations or replacements, you can trust that they are the right HVAC professionals for you. Call today for your next appointment!

"They installed our AC system; that went fine. But several years later, when it needed repair. They came out and looked at the problem, and then ghosted me. They didn't return my multiple calls. When I finally got somebody else to come out to look at the problem, they told me that the warranty had just expired on the part that needed replacing. Putting 2 +2 together, Buric ghosted me to run out the clock on my warranty for the repair of the product they installed. Would you ever hire anybody who behaves like that???"

Noam S on June 2022

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Boiler Repair questions, answered by experts

In general, it’s a good idea to bleed air from your heaters at the start of every cold season, before you move your boiler system back into active mode. Early fall is a common time for this task. However, some heating systems don’t need much manual bleeding because of automatic bleed vents and other components.

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.

Addressing gaps and cracks reduces heat loss and improves energy use.

The difference between a heat pump and a boiler is simple. A boiler often works with a furnace as part of a heating system. Some HVAC systems also have an AC to cool the home in addition to a boiler. A heat pump is unique as it works as both a heating and cooling system, altering ambient air to a comfortable indoor temperature.

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 Gaithersburg, MD homeowners’ guide to boiler repairs

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

See all articles