Get matched with top boiler repair pros in Knoxville, MD
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TRUSTED BY KNOXVILLE, MD HOMEOWNERS
4.4 Average homeowner rating
4.3k+ Verified boiler repairs reviews
Verified Reviews for Boiler Repair pros in Knoxville, MD
*The Angi rating for Boiler Repair companies in Knoxville, 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 Knoxville, 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 November 13, 2025
Find Boiler repair pros in Knoxville
Presidential Heating & Air Conditioning
Presidential Heating & Air Conditioning
Customers say: Super punctual
172 local quotes requested
43 years of experience
You and your family deserve to receive the best care and the best service. Not every heating & A/C company gives you the quality people and care that Presidential does. We offer 40 Years of Award-Winning Quality People, Quality Installation, and Quality Service. Delivering this quality service and care for your home is our commitment to you! Family-owned and operated, Presidential specializes in residential and light commercial service and installation throughout MD, VA & DC. Ask us about our system replacement specials and The Advantage Maintenance Plan for preferred VIP service. Presidential has been awarded the Carrier Factory Authorized Dealer Award and is a member of the ACCA (Air Conditioning Contractors of America) and the Quality One service network.
"Excellent service! I had a 26yr old A/C and Propane furnace that I wanted to update to an ALL ELECTRIC high efficiency heat pump. The price in the estimate was much higher than I was expecting, but they worked with me and brought it down considerably, provided I could accept an install slot in a couple of days due to a cancellation. Go for it, I thought! Unfortunately, it turned out that the estimator/salesman (who shall remain nameless) apparently got a bit confused and set up the equipment as a hybrid propane system - not the all-electric system that I wanted. Ugh. I only realized this when the installers had the indoor unit in place, and I saw the propane burners. Doh! So, I explained the situation to them, and they pulled the unwanted unit out and jumped through the hoops to order the correct unit and its accessories (wiring, breakers etc.), with no change to the price. They were very friendly and polite through all of this even though it meant the wasted work and that they had to come back the next day with the new IDU. Anyway, the final install all went well, and they were very friendly and respectful of the property and explained all the install details as they went (sorry Melvin, for all the pestering!) I'm very happy with the company and the installer's knowledge and professionalism. RECOMMENDED!"
Mark Q on October 2025
You and your family deserve to receive the best care and the best service. Not every heating & A/C company gives you the quality people and care that Presidential does. We offer 40 Years of Award-Winning Quality People, Quality Installation, and Quality Service. Delivering this quality service and care for your home is our commitment to you! Family-owned and operated, Presidential specializes in residential and light commercial service and installation throughout MD, VA & DC. Ask us about our system replacement specials and The Advantage Maintenance Plan for preferred VIP service. Presidential has been awarded the Carrier Factory Authorized Dealer Award and is a member of the ACCA (Air Conditioning Contractors of America) and the Quality One service network.
"Excellent service! I had a 26yr old A/C and Propane furnace that I wanted to update to an ALL ELECTRIC high efficiency heat pump. The price in the estimate was much higher than I was expecting, but they worked with me and brought it down considerably, provided I could accept an install slot in a couple of days due to a cancellation. Go for it, I thought! Unfortunately, it turned out that the estimator/salesman (who shall remain nameless) apparently got a bit confused and set up the equipment as a hybrid propane system - not the all-electric system that I wanted. Ugh. I only realized this when the installers had the indoor unit in place, and I saw the propane burners. Doh! So, I explained the situation to them, and they pulled the unwanted unit out and jumped through the hoops to order the correct unit and its accessories (wiring, breakers etc.), with no change to the price. They were very friendly and polite through all of this even though it meant the wasted work and that they had to come back the next day with the new IDU. Anyway, the final install all went well, and they were very friendly and respectful of the property and explained all the install details as they went (sorry Melvin, for all the pestering!) I'm very happy with the company and the installer's knowledge and professionalism. RECOMMENDED!"
Mark Q on October 2025
F.H. Furr Plumbing Heating & Air Conditioning Inc
F.H. Furr Plumbing Heating & Air Conditioning Inc
Customers say: Super punctual
187 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
GAC Services
GAC Services
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
623 local quotes requested
GAC Services is a residential cooling, heating, and electrical contractor setting new standards in the Maryland HVAC and electric market. Since 1970, we’ve developed a strong reputation for providing the Montgomery County and Frederick County areas with reliable cooling and heating services. In 2014, we expanded our service offerings to include electrical services—allowing us to offer our customers the same great service in a new area of business. Additional DBA: Gaithersburg Heating & Cooling
"Highly professional, knowledgeable and well behaved technician. Prices offered were good too. I definitely recommend the company."
Deepak K on February 2025
GAC Services is a residential cooling, heating, and electrical contractor setting new standards in the Maryland HVAC and electric market. Since 1970, we’ve developed a strong reputation for providing the Montgomery County and Frederick County areas with reliable cooling and heating services. In 2014, we expanded our service offerings to include electrical services—allowing us to offer our customers the same great service in a new area of business. Additional DBA: Gaithersburg Heating & Cooling
"Highly professional, knowledgeable and well behaved technician. Prices offered were good too. I definitely recommend the company."
Deepak K on February 2025
TriState Home Services
TriState Home Services
Customers say: Super punctual
242 local quotes requested
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
R & G Water Systems Inc
R & G Water Systems Inc
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
20 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
Petro Home Services
Petro Home Services
Customers say: True professional
587 local quotes requested
122 years of experience
With over 100 years experience, we know how to keep you comfortable, safe and help you save on energy costs. Our local 24/7 customer service and support means automatic heating oil deliveries and our service response is always fast. We never run out of heating oil plus our pricing and payment plans are designed to help you manage your costs all year round. Experience the Petro difference today!
"Worst service I’ve ever have experienced. They wanted to sell me the product, never told me that there was an early termination fee and another penalty for an initial offer they gave me. Had double charges every month, once for the oil they provided (which they never told me they were going to provide before coming. They just came without my knowledge and then I find a high amount bill) and another for an “automatic payment” for 500 that they never could explain. The didn’t even fix this issue and it kept happening every month even after I cancelled the service. Then having to call them is a hastié for the refund of the 500. Stay away of this company"
Axel R on January 2023
With over 100 years experience, we know how to keep you comfortable, safe and help you save on energy costs. Our local 24/7 customer service and support means automatic heating oil deliveries and our service response is always fast. We never run out of heating oil plus our pricing and payment plans are designed to help you manage your costs all year round. Experience the Petro difference today!
"Worst service I’ve ever have experienced. They wanted to sell me the product, never told me that there was an early termination fee and another penalty for an initial offer they gave me. Had double charges every month, once for the oil they provided (which they never told me they were going to provide before coming. They just came without my knowledge and then I find a high amount bill) and another for an “automatic payment” for 500 that they never could explain. The didn’t even fix this issue and it kept happening every month even after I cancelled the service. Then having to call them is a hastié for the refund of the 500. Stay away of this company"
Axel R on January 2023
RT Services
RT Services
Customers say: Quick response
49 local quotes requested
42 years of experience
At RT Services, we specialize in high-quality plumbing installations and upgrades tailored to your construction or remodeling project. With years of hands-on experience and a commitment to precision, our licensed plumbers expertly handle everything from new pipe installations to modern plumbing fixture upgrades. We ensure every plumbing system is built for long-term reliability, efficiency, and code compliance delivering results that add value and peace of mind to your home or business.
"Professional service, very nice technicians! "
Carly N on October 2025
At RT Services, we specialize in high-quality plumbing installations and upgrades tailored to your construction or remodeling project. With years of hands-on experience and a commitment to precision, our licensed plumbers expertly handle everything from new pipe installations to modern plumbing fixture upgrades. We ensure every plumbing system is built for long-term reliability, efficiency, and code compliance delivering results that add value and peace of mind to your home or business.
"Professional service, very nice technicians! "
Carly N on October 2025
Weir Stein
Weir Stein
4 years of experience
Free onsite estimate
We are a locally owned and operated company that values honesty and integrity in all aspects of our business. We offer a variety of handyman services that are customizable to each individual project. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!
We are a locally owned and operated company that values honesty and integrity in all aspects of our business. We offer a variety of handyman services that are customizable to each individual project. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!
West Shore Home Baltimore
West Shore Home Baltimore
Super Service Award
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
869 local quotes requested
To accomplish our mission, we have implemented a simple approach that will restore the beauty of your home while significantly reducing your energy bills - and we get it done in just one day! From start to finish, the West Shore Window & Door, Inc., experience is engineered to bring happiness to every home. The health and safety of our customers and employees is a top priority. Our team is following all CDC guidelines so we can provide you with the fast and convenient home improvements. We are also offering free virtual design consultations! Schedule your free consultation today.
"Excellent customer service. Excellent finished product. West Shore Home came to install a shower in one bathroom and bathtub/shower in another bathroom. Their customer service is top tier! They took extra caution to ensure they didn’t damage or disrupt my home or other furniture as they carried their equipment in and out of the house. They encouraged me to see the progress as they worked. (Nothing to hide is always a good thing.) When I expressed surprise and disappointment with one aspect of the design, they immediately began solutioning the issue."
Isiah T on January 2025
To accomplish our mission, we have implemented a simple approach that will restore the beauty of your home while significantly reducing your energy bills - and we get it done in just one day! From start to finish, the West Shore Window & Door, Inc., experience is engineered to bring happiness to every home. The health and safety of our customers and employees is a top priority. Our team is following all CDC guidelines so we can provide you with the fast and convenient home improvements. We are also offering free virtual design consultations! Schedule your free consultation today.
"Excellent customer service. Excellent finished product. West Shore Home came to install a shower in one bathroom and bathtub/shower in another bathroom. Their customer service is top tier! They took extra caution to ensure they didn’t damage or disrupt my home or other furniture as they carried their equipment in and out of the house. They encouraged me to see the progress as they worked. (Nothing to hide is always a good thing.) When I expressed surprise and disappointment with one aspect of the design, they immediately began solutioning the issue."
Isiah T on January 2025
O'Donnell Plumbing
O'Donnell Plumbing
Customers say: Quality work
26 years of experience
Free onsite estimate
O'Donnell Plumbing has been in business since 1999. Our staff of qualified plumbers bring dedication to our customers with over 40 years of combined experience in the residential and commercial plumbing fields. You will find that our experience and expertise will satisfy your plumbing needs in the Frederick and Montgomery County, MD areas as well as in the South central Pennsylvania area.
"."
Jerry J on May 2023
O'Donnell Plumbing has been in business since 1999. Our staff of qualified plumbers bring dedication to our customers with over 40 years of combined experience in the residential and commercial plumbing fields. You will find that our experience and expertise will satisfy your plumbing needs in the Frederick and Montgomery County, MD areas as well as in the South central Pennsylvania area.
"."
Jerry J on May 2023
Boiler Repair questions, answered by experts
The Knoxville, MD homeowners’ guide to boiler repairs
From average costs to expert advice, get all the answers you need to get your job done.
A mini-split allows for zoned cooling, helpful for cooling spaces like garages. Learn the cost to install a mini-split unit in a garage with this guide.
Whole-house humidifier costs vary based on the type and size of the unit, along with other factors. The price might be worth it for people living in dry regions.
If you’re having problems with your air conditioner’s condenser, it may be time for an upgrade. Learn about the cost to replace an AC condenser in this guide.
Need to purchase a new gas furnace but aren’t sure which type is right for your home and needs? Taking a little bit of time to research furnaces to see which option is right for you can save you money over time. Here’s a look at five furnace types.
Take several factors into consideration when upgrading your HVAC system. Our guide will help you choose the right HVAC upgrade.
When the furnace stops working, you may ask yourself: repair or replace? Find out whether to replace a blower motor or buy a new furnace with this guide.
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