Get matched with top heating and air conditioning pros in Towson, MD
There are 54 highly-rated local heating and air conditioning pros.
TRUSTED BY TOWSON, MD HOMEOWNERS
4.5 
613 Verified Reviews for Heating And Air Conditioning Service pros in Towson, MD
*The Angi rating for Heating And Air Conditioning Service companies in Towson, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Towson, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
Last update on August 04, 2025
Heating and air conditioning pros in Towson
Our local and family owned and operated company at Farnen & Dermer has been a trusted name in HVAC for over 100 years. We offer expert heating, cooling, indoor air quality, and plumbing services to residential properties in Owings Mills and throughout Baltimore County. Our experienced, licensed, and factory-trained technicians will be there in a flash—proudly offering same-day appointments and 24/7 emergency repairs when you reach out to us by phone. If you need heater or AC replacement, we offer free estimates and flexible financing options, so a high-quality system doesn’t break the bank. From speedy AC repairs and heating maintenance to air filtration installation and boiler replacement, our team has you covered—backing up all our services with a 100% satisfaction guarantee.
"THIS COMPANY IS SCAMMING PEOPLE!!! -On 6/24/21, Farnen and Dermer installed a brand new YORK HVAC system in my home. Everything appeared to be fine, and there were no issues for 2 years. -On 8/28/23, I noticed an extremely loud buzzing coming from my outside unit, so I called them to come check on the problem. My unit was still cooling, but extremely loud. Glen A. showed up to diagnose the problem and seemed like a nice enough guy. After about an hour, he informed me that my entire indoor and outdoor unit need full replacement for a total of $10,900. (I paid $7,500 just 2 years earlier). I said, surely this was covered under warranty because the unit was only 2 years old? He then informed me that it was not because it was â struck by lightning and the warranty does not cover an act of god. -At this point in my head things were not adding up, especially since the unit was still cooling, both of my neighbors units were fine (townhouse) and he did not even check the inside unit. I told Glen I need to think about the replacement because that is a lot of money that I do not have at the time. Glen disconnected my outside unit completely before he left with the hottest week of the summer upcoming (95F-98F) and charged me $189 for the visit. -I am lucky enough to have a Fire Marshall as a good friend to ask him about the situation. This guy sees lightning strikes pretty frequently. He told me there is no way that my unit was struck by lightning based off of what I was seeing and also because it would have gotten to all of my neighbors units (townhouse). He informed me it is literally impossible. THE UNIT WAS STILL COOLING! -I decided to get a 2nd opinion from another company. The other company came out and told me that my compressor was bad and that there was no lightning strike to speak of. They also informed me that it was covered under the warranty and they could fix it. The technician said that he noticed the wiring on the outside unit was incorrect. There was a red wire crossed with a black wire. He said that is exactly why my 2 year old compressor went out. This company even put their findings in writing for me. They replaced my parts and got me up and running for 82% LESS THAN F and D! -I am not the only person this has happened to. It appears to be standard practice. You can see the attached pictures of reviews from other people in the same boat on the Better Business Bureau website. I will be submitting a complaint through BBB and demanding a full refund. This is pure predatory behavior and it is unacceptable!"
Dan W on September 2023
Our local and family owned and operated company at Farnen & Dermer has been a trusted name in HVAC for over 100 years. We offer expert heating, cooling, indoor air quality, and plumbing services to residential properties in Owings Mills and throughout Baltimore County. Our experienced, licensed, and factory-trained technicians will be there in a flash—proudly offering same-day appointments and 24/7 emergency repairs when you reach out to us by phone. If you need heater or AC replacement, we offer free estimates and flexible financing options, so a high-quality system doesn’t break the bank. From speedy AC repairs and heating maintenance to air filtration installation and boiler replacement, our team has you covered—backing up all our services with a 100% satisfaction guarantee.
"THIS COMPANY IS SCAMMING PEOPLE!!! -On 6/24/21, Farnen and Dermer installed a brand new YORK HVAC system in my home. Everything appeared to be fine, and there were no issues for 2 years. -On 8/28/23, I noticed an extremely loud buzzing coming from my outside unit, so I called them to come check on the problem. My unit was still cooling, but extremely loud. Glen A. showed up to diagnose the problem and seemed like a nice enough guy. After about an hour, he informed me that my entire indoor and outdoor unit need full replacement for a total of $10,900. (I paid $7,500 just 2 years earlier). I said, surely this was covered under warranty because the unit was only 2 years old? He then informed me that it was not because it was â struck by lightning and the warranty does not cover an act of god. -At this point in my head things were not adding up, especially since the unit was still cooling, both of my neighbors units were fine (townhouse) and he did not even check the inside unit. I told Glen I need to think about the replacement because that is a lot of money that I do not have at the time. Glen disconnected my outside unit completely before he left with the hottest week of the summer upcoming (95F-98F) and charged me $189 for the visit. -I am lucky enough to have a Fire Marshall as a good friend to ask him about the situation. This guy sees lightning strikes pretty frequently. He told me there is no way that my unit was struck by lightning based off of what I was seeing and also because it would have gotten to all of my neighbors units (townhouse). He informed me it is literally impossible. THE UNIT WAS STILL COOLING! -I decided to get a 2nd opinion from another company. The other company came out and told me that my compressor was bad and that there was no lightning strike to speak of. They also informed me that it was covered under the warranty and they could fix it. The technician said that he noticed the wiring on the outside unit was incorrect. There was a red wire crossed with a black wire. He said that is exactly why my 2 year old compressor went out. This company even put their findings in writing for me. They replaced my parts and got me up and running for 82% LESS THAN F and D! -I am not the only person this has happened to. It appears to be standard practice. You can see the attached pictures of reviews from other people in the same boat on the Better Business Bureau website. I will be submitting a complaint through BBB and demanding a full refund. This is pure predatory behavior and it is unacceptable!"
Dan W on September 2023
SM Mechanical, LLC brings an unmatched commitment to excellence to your HVAC or plumbing project. We deliver unsurpassed professionalism, expertise and value. Call today.
"Best price, great customer service"
Ed V on January 2022
SM Mechanical, LLC brings an unmatched commitment to excellence to your HVAC or plumbing project. We deliver unsurpassed professionalism, expertise and value. Call today.
"Best price, great customer service"
Ed V on January 2022
I specialize in service and installation of HVAC equipment as well as appliance repair dryer ,fridge ,washing machine and stove
I specialize in service and installation of HVAC equipment as well as appliance repair dryer ,fridge ,washing machine and stove
Hauling
We have minimum overhang offering the best pricing possibly. With S&D you not only get 100% work craftsmanship guaranteed with no corners cut but a Very reliable, honest team ready to help customers. We offer and specialize in HVAC/plumbing/Handyman/electrical up to 240v circuits and more.
We have minimum overhang offering the best pricing possibly. With S&D you not only get 100% work craftsmanship guaranteed with no corners cut but a Very reliable, honest team ready to help customers. We offer and specialize in HVAC/plumbing/Handyman/electrical up to 240v circuits and more.
"I am a certified HVAC technician with 2 years of experience, specializing in the installation, repair, and maintenance of heating, ventilation, and air conditioning systems. I pride myself on offering a professional, reliable and efficient service to all my clients. My goal is to make sure that every home and business has an HVAC system that works optimally, providing comfort and energy savings. Whether it's troubleshooting or optimizing your system's performance.
"I am a certified HVAC technician with 2 years of experience, specializing in the installation, repair, and maintenance of heating, ventilation, and air conditioning systems. I pride myself on offering a professional, reliable and efficient service to all my clients. My goal is to make sure that every home and business has an HVAC system that works optimally, providing comfort and energy savings. Whether it's troubleshooting or optimizing your system's performance.
We have more than 15 years of experience in complete remodeling, from changing the color of your room to completely remodeling your house. We give new life to your home. Painting interior and exterior, bathroom remodeling, Laminate flooring installation, kitchen remodeling, remodeling our work comes with 100% guarantee and we also offer free in person estimates and competitive pricing. We make sure we beat our competitors line of work and prices. we also strive in making sure all of our customers are happy and satisfied with our work is completed in a timely manner and we keep all our customers informed of our work and progress.
"They were the first service to come to the house to look at the job and provide an estimate, and two days later they came and did the work. They were fast, clean, and their work was excellent quality."
Jan S on March 2025
We have more than 15 years of experience in complete remodeling, from changing the color of your room to completely remodeling your house. We give new life to your home. Painting interior and exterior, bathroom remodeling, Laminate flooring installation, kitchen remodeling, remodeling our work comes with 100% guarantee and we also offer free in person estimates and competitive pricing. We make sure we beat our competitors line of work and prices. we also strive in making sure all of our customers are happy and satisfied with our work is completed in a timely manner and we keep all our customers informed of our work and progress.
"They were the first service to come to the house to look at the job and provide an estimate, and two days later they came and did the work. They were fast, clean, and their work was excellent quality."
Jan S on March 2025
Custom Home Construction Description: From the ground up, we build custom homes tailored to your vision and lifestyle. Our team works closely with you to design and construct a home that meets your exact specifications, ensuring quality, durability, and beauty in every detail. 2. Home Renovations & Remodeling Description: Whether it's a kitchen upgrade, bathroom remodel, or whole-house renovation, we transform your existing spaces into modern, functional, and stylish environments. Our renovation services are designed to enhance your home's comfort and value. Exterior Improvements Description: Boost your home's curb appeal with our exterior improvement services, including siding replacement, roofing, window installations, and deck construction. We use high-quality materials to protect and beautify your home’s exterior. 4. Additions & Extensions Description: Expand your living space with our expertly crafted home additions and extensions. Whether you need a new room, a garage, or a larger living area, we ensure that the addition blends seamlessly with your existing structure.
"Abbas was very professional and patient. I would highly recommend him."
Elisha M on December 2024
Custom Home Construction Description: From the ground up, we build custom homes tailored to your vision and lifestyle. Our team works closely with you to design and construct a home that meets your exact specifications, ensuring quality, durability, and beauty in every detail. 2. Home Renovations & Remodeling Description: Whether it's a kitchen upgrade, bathroom remodel, or whole-house renovation, we transform your existing spaces into modern, functional, and stylish environments. Our renovation services are designed to enhance your home's comfort and value. Exterior Improvements Description: Boost your home's curb appeal with our exterior improvement services, including siding replacement, roofing, window installations, and deck construction. We use high-quality materials to protect and beautify your home’s exterior. 4. Additions & Extensions Description: Expand your living space with our expertly crafted home additions and extensions. Whether you need a new room, a garage, or a larger living area, we ensure that the addition blends seamlessly with your existing structure.
"Abbas was very professional and patient. I would highly recommend him."
Elisha M on December 2024
Garbage Disposal Replacement, Kitchen Faucet Replacement, Water Heater Install, Ceiling Fan Install, GFI / Outlet Receptacle Replacement, AC Thermostat Install, Toilet Install, Bathroom Vanity Replacement, Floor & Shower Tile Replacement, Shut off valve Replacement, Interior & Exterior Painting, Ceiling Fan Installation, Sump Pump Replacement, Cabinet Installation, HVAC Repair Service
Garbage Disposal Replacement, Kitchen Faucet Replacement, Water Heater Install, Ceiling Fan Install, GFI / Outlet Receptacle Replacement, AC Thermostat Install, Toilet Install, Bathroom Vanity Replacement, Floor & Shower Tile Replacement, Shut off valve Replacement, Interior & Exterior Painting, Ceiling Fan Installation, Sump Pump Replacement, Cabinet Installation, HVAC Repair Service
FAQs for heating and air conditioning service projects in Towson, MD
Knowing how long your existing HVAC units can last is essential to determine if you need a repair or replacement. Typically, most modern air conditioning units can last between 15 to 20 years, and most furnaces can work properly for 15 to 30 years. If your HVAC system is on the older side and you decide to replace one unit, it might make sense to replace both simultaneously to save on costs and future hassle.
While different HVAC contractors might offer higher or lower prices than competitors, the best time to replace your HVAC system is when customer demand is low. The beginning of summer and the beginning of winter bring the most demand for HVAC systems, so if you can, consider replacing your HVAC units in the early spring or fall. Many HVAC companies offer special off-season coupons that help lower the overall cost.
The average cost to hire an HVAC contractor is between $50 and $150 per hour if charging hourly. However, some HVAC contractors will charge a flat fee by the type of service they are performing—for example, an inspection can cost between $150 to $500. Keep in mind that emergency repairs—which are made after business hours or around major holidays—generally cost more than scheduled repairs.
Yes, most states require HVAC technicians to be certified, and for good reason. Hiring an unlicensed HVAC technician could lead to poor quality work, costly future expenses, and potential code violations.
As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include:
The owner, principal, or relevant manager passed a criminal background check
Required to have applicable state and local licenses
Maintain an average star rating of 3.0 or better on our network, if they have at least one review
Paying to advertise their services
Meeting any other eligibility criteria required by Angi
Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.
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.
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