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TRUSTED BY HYDES, MD HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon441
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Hydes

"Very responsive. Expected a much higher bill"

Ronald L on November 2020

We are not happy unless you are happy! We look forward to bringing you our quality of work and excellence to your homes. Why would you look anywhere else?

"Very responsive. Expected a much higher bill"

Ronald L on November 2020


"Our Water Furnace was just 5 years old. Has worked flawlessly, we are warm in Winter and cool in the Summer. Best is our Yearly total electric bill was $1450!!!"

Jay M on April 2021

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!

"Our Water Furnace was just 5 years old. Has worked flawlessly, we are warm in Winter and cool in the Summer. Best is our Yearly total electric bill was $1450!!!"

Jay M on April 2021


Avatar for Innovative Air, LLC

Innovative Air, LLC

5.00(
3
)
Approved Pro

Innovative Air, LLC

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
27 years of 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.

"A great team, very professional and respectful!! Thank you!"

Troy M on January 2023

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.

"A great team, very professional and respectful!! Thank you!"

Troy M on January 2023


Avatar for SPECS Heating & Cooling

SPECS Heating & Cooling

5.00(
14
)
Approved Pro

SPECS Heating & Cooling

5.00(
14
)
Approved Pro
Super Service Award
Customers say: Quick response
119 local quotes requested
1 years of experience

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Service was fast and courteous. Both techs, Jermaine and Raoul, were great!"

Karen J on September 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Service was fast and courteous. Both techs, Jermaine and Raoul, were great!"

Karen J on September 2025


Avatar for Farnen & Dermer, Inc.

Farnen & Dermer, Inc.

3.67(
20
)
Approved Pro

Farnen & Dermer, Inc.

3.67(
20
)
Approved Pro
123 years of experience
Free onsite estimate

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


Avatar for Smart Energy Systems, Inc.

Smart Energy Systems, Inc.

4.91(
11
)
Approved Pro

Smart Energy Systems, Inc.

4.91(
11
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
29 local quotes requested

Welcome to Smart ENERGY SYSTEMS — where we provide intelligent solutions that work to keep you in your comfort zone. We are locally owned and operated as a licensed and insured heating and cooling systems contractor in the northern Maryland area, and service Bel Air, Maryland, and the surrounding areas, including Harford, Baltimore, and Cecil Counties. We have been in business for almost 10 years. When you want fast, professional-grade installations and repairs at an affordable price, call us. You will be comfortable in knowing that you are working with tenured professionals, all with over 25 years of experience. We are trained, certified, and experienced in installing or repairing high-quality heating and air conditioning systems at prices you’ll appreciate and quality that can’t be beaten. Our new construction division specializes in installing heating and air conditioning systems in new residential and commercial construction.

"Great service all around! I needed a full swap, both a/c and furnace. They were great right from scheduling! They worked with me on financing which was a blessing. You can tell they care about the quality of their work and went above and beyond in every way!"

Alayna S on August 2024

Welcome to Smart ENERGY SYSTEMS — where we provide intelligent solutions that work to keep you in your comfort zone. We are locally owned and operated as a licensed and insured heating and cooling systems contractor in the northern Maryland area, and service Bel Air, Maryland, and the surrounding areas, including Harford, Baltimore, and Cecil Counties. We have been in business for almost 10 years. When you want fast, professional-grade installations and repairs at an affordable price, call us. You will be comfortable in knowing that you are working with tenured professionals, all with over 25 years of experience. We are trained, certified, and experienced in installing or repairing high-quality heating and air conditioning systems at prices you’ll appreciate and quality that can’t be beaten. Our new construction division specializes in installing heating and air conditioning systems in new residential and commercial construction.

"Great service all around! I needed a full swap, both a/c and furnace. They were great right from scheduling! They worked with me on financing which was a blessing. You can tell they care about the quality of their work and went above and beyond in every way!"

Alayna S on August 2024


Avatar for Heating & Cooling Certified Mechanic

Heating & Cooling Certified Mechanic

4.97(
31
)
Approved Pro

Heating & Cooling Certified Mechanic

4.97(
31
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
157 local quotes requested

With over a decade of experience, Heating & Cooling Certified Mechanic is professionally licensed and dedicated to ensure your HVAC service/install exceeds your expectations! We specialize in HVAC services, repairs and we guarantee your satisfaction! We will not leave until the job is done right! We pride ourselves on the quality of work we provide, while delivering great customer service! Call or click for your FREE estimate today! HVAC, Water Heater, Air Quality System Installations, Repairs & More Need repair? Call Today, Need Installation or a 2nd Opinion? Call Today. 24 Hour Service CALL TODAY! CALL TONIGHT!

"The estimate process went very smoothly. The proposal was well written & allowed electronic signature. Communication leading up to the install date was timely and professional. The work was completed on time and correctly. The installation team was friendly and competent."

Stanley R on July 2025

With over a decade of experience, Heating & Cooling Certified Mechanic is professionally licensed and dedicated to ensure your HVAC service/install exceeds your expectations! We specialize in HVAC services, repairs and we guarantee your satisfaction! We will not leave until the job is done right! We pride ourselves on the quality of work we provide, while delivering great customer service! Call or click for your FREE estimate today! HVAC, Water Heater, Air Quality System Installations, Repairs & More Need repair? Call Today, Need Installation or a 2nd Opinion? Call Today. 24 Hour Service CALL TODAY! CALL TONIGHT!

"The estimate process went very smoothly. The proposal was well written & allowed electronic signature. Communication leading up to the install date was timely and professional. The work was completed on time and correctly. The installation team was friendly and competent."

Stanley R on July 2025


"Deceptive. Installed defective equipment then disappeared"

Elam K on November 2025

Hamilton Plumbing and Heating Co is a family owned and operated business serving the community since 1978! Offering superior quality work and excellent customer service. We are licensed and trained professionals in Plumbing, Heating and Air Conditioning. Specializing in Water Heaters.

"Deceptive. Installed defective equipment then disappeared"

Elam K on November 2025


Avatar for Mr. Handyman of Northern Baltimore County

Mr. Handyman of Northern Baltimore County

4.72(
427
)
Approved Pro

Mr. Handyman of Northern Baltimore County

4.72(
427
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
969 local quotes requested

***ASK ABOUT OUR BATHROOM REMODEL ANGI COUPON*** Angies List Super Service Award Winner for 10+ years (since 2009). Voted "Baltimore's Best Handyman" - 2018 Readers Choice Baltimore Sun One call does it all! At Mr. Handyman, we complete jobs faster and better because you don’t need to make multiple phone calls to multiple contractors. Our insured technicians can take care of all of the projects on your "to-do list" saving you time from the first phone call all the way through to project completion. We promise to offer you peace of mind knowing Mr. Handyman's professionals are company employees who will arrive on time in Mr. Handyman vans and will also clean up when they’re done. Busy schedules can make home repairs hard to get to. Now your growing "To Do" list just looks overwhelming and unmanageable. Where do you start? It takes just one call to hire your local Mr. Handyman to solve all your home repair headaches. Professional, safe, reliable handyman services on-time, every time, that's our guarantee.

"Everything was completed to satisfaction."

Tiffani L on October 2025

***ASK ABOUT OUR BATHROOM REMODEL ANGI COUPON*** Angies List Super Service Award Winner for 10+ years (since 2009). Voted "Baltimore's Best Handyman" - 2018 Readers Choice Baltimore Sun One call does it all! At Mr. Handyman, we complete jobs faster and better because you don’t need to make multiple phone calls to multiple contractors. Our insured technicians can take care of all of the projects on your "to-do list" saving you time from the first phone call all the way through to project completion. We promise to offer you peace of mind knowing Mr. Handyman's professionals are company employees who will arrive on time in Mr. Handyman vans and will also clean up when they’re done. Busy schedules can make home repairs hard to get to. Now your growing "To Do" list just looks overwhelming and unmanageable. Where do you start? It takes just one call to hire your local Mr. Handyman to solve all your home repair headaches. Professional, safe, reliable handyman services on-time, every time, that's our guarantee.

"Everything was completed to satisfaction."

Tiffani L on October 2025


Avatar for Bamford Plumbing and Heating

Bamford Plumbing and Heating

4.92(
17
)
Approved Pro

Bamford Plumbing and Heating

4.92(
17
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
19 local quotes requested

Bamford Plumbing & Heating has been providing excellent customer service since 2009. We have over ten years of experience in the plumbing and heating industry. We are licensed and insured in the State of Maryland. We offer 24 hour emergency service and free estimates on new work. We accept all major credit cards and checksBamford Plumbing & heating is a full service and repair plumbing and heating company. We are also proud to be an authorized Goulds pump dealer. Water well systems is our speciality we have well pump pulling equipment that allows us to be able to remove and install well pumps up to 600 feet deep. Also since we are an authorized dealer for Goulds we can offer a 5 year warranty on Goulds pumps we sell. We also have our own excavation equipment this enables us to continue our services to the repair or replacement of well service lines and well pump electrical lines these are the lines from the house to well .We also provide service to the components in your home.

"Doug was extremely friendly, and actually diagnosed my exact problem on the phone. He came out the very next day and got it taken care of with no trouble at all. I'd go back to Bamford in a heartbeat."

David M on May 2012

Bamford Plumbing & Heating has been providing excellent customer service since 2009. We have over ten years of experience in the plumbing and heating industry. We are licensed and insured in the State of Maryland. We offer 24 hour emergency service and free estimates on new work. We accept all major credit cards and checksBamford Plumbing & heating is a full service and repair plumbing and heating company. We are also proud to be an authorized Goulds pump dealer. Water well systems is our speciality we have well pump pulling equipment that allows us to be able to remove and install well pumps up to 600 feet deep. Also since we are an authorized dealer for Goulds we can offer a 5 year warranty on Goulds pumps we sell. We also have our own excavation equipment this enables us to continue our services to the repair or replacement of well service lines and well pump electrical lines these are the lines from the house to well .We also provide service to the components in your home.

"Doug was extremely friendly, and actually diagnosed my exact problem on the phone. He came out the very next day and got it taken care of with no trouble at all. I'd go back to Bamford in a heartbeat."

David M on May 2012

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Heating and Air Conditioning questions, answered by experts

While all portable AC units will collect moisture as part of their cooling and dehumidifying process, whether and how often you need to drain them depends on what kind of unit you have and the natural humidity levels where you live. For example, if you live in a very dry area and have a self-evaporating unit, you may not need to drain your portable AC very often at all. Some units may automatically drain collected moisture out the window through their exhaust vent.

Air filters with a high MERV rating, 11 or above, shouldn't cause airflow problems in most residential systems. However, the airflow can be restricted in some HVAC systems if they aren't designed for high MERV ratings. If in doubt, a local duct installer should inspect your ductwork so that you know what your system can handle.

AC leaks are common, and an HVAC pro can usually fix them. You may be able to resolve some leaks on your own, but a professional HVAC technician should handle most AC leak repair. If left ignored, an AC leak could cause serious damage to your system or leave you with expensive water damage, usually leading to more costly repairs or replacements.

It depends on the specifics of your warranty. The motor is likely not covered if you’re working with a limited warranty. The same goes for other components like the compressor and evaporator coil. Some extended warranties will cover the blower and fan motor, so read the fine print before signing up. Additionally, the manufacturer may offer a warranty for the parts, including the motor, though there’s likely to be a strict time limit for this coverage.

The outdoor portions of air conditioners are designed to weather the rain, so you don’t need to worry about it. An awning or roof will help protect them from snow or falling debris, which can do more damage. This is true of both window AC and outdoor units for larger systems.

The Hydes, MD homeowners’ guide to heating and air conditioning services

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