Top-rated heating and air conditioning pros.

Get matched with top heating and air conditioning pros in Crownsville, MD

There are 26 highly-rated local heating and air conditioning pros.

TRUSTED BY CROWNSVILLE, MD HOMEOWNERS

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    Average homeowner rating
  • Verified reviews icon506
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Crownsville

"We had a great experience with them! Super communicative, great price and super quick. Highly recommend"

Lucie B on December 2024

Duke's Electrical Services is a small, family owned and operated business. The owner, a master electrician, preformes all the work personally to ensure the highest quality workmanship.

"We had a great experience with them! Super communicative, great price and super quick. Highly recommend"

Lucie B on December 2024


Avatar for GAC Services

GAC Services

4.86(
268
)
Approved Pro

GAC Services

4.86(
268
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
1970 years of experience

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 U 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 U on February 2025


Avatar for Sila Heating, Cooling and Plumbing

Sila Heating, Cooling and Plumbing

4.75(
1,971
)
Approved Pro

Sila Heating, Cooling and Plumbing

4.75(
1,971
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
1989 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 Haas & Sons Electric, Inc.

Haas & Sons Electric, Inc.

4.80(
147
)
Approved Pro

Haas & Sons Electric, Inc.

4.80(
147
)
Approved Pro
Customers say: Quick response
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers
2014 years of experience

We are performing work as normal so feel free to reach out about your project or repair! During these times are following safe practices for both your family and our workers. We specialize in home repairs and projects, providing you solutions from basic to long-lasting so that we can ensure that we not only fit the budget but provide safety and comfort for your family. Haas & Sons is a small, family-operated business based out of Pasadena Maryland, serving Anne Arundel, Howard, and surrounding counties. Our certified Electricians go through constant training to be able to provide you with quality work, great warranties, and amazing service. What to expect with Haas & Sons- A company you can trust, Marked Vehicles, Uniformed and trained Techs, Constant communication, Upfront pricing, all with a friendly smile.

"Very good job."

Fred D on May 2024

We are performing work as normal so feel free to reach out about your project or repair! During these times are following safe practices for both your family and our workers. We specialize in home repairs and projects, providing you solutions from basic to long-lasting so that we can ensure that we not only fit the budget but provide safety and comfort for your family. Haas & Sons is a small, family-operated business based out of Pasadena Maryland, serving Anne Arundel, Howard, and surrounding counties. Our certified Electricians go through constant training to be able to provide you with quality work, great warranties, and amazing service. What to expect with Haas & Sons- A company you can trust, Marked Vehicles, Uniformed and trained Techs, Constant communication, Upfront pricing, all with a friendly smile.

"Very good job."

Fred D on May 2024


Avatar for Grove Heating and Cooling Inc

Grove Heating and Cooling Inc

4.80(
142
)
Approved Pro

Grove Heating and Cooling Inc

4.80(
142
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
2004 years of experience

Family Owned & Operated, Grove Heating and Cooling, Inc. specializes in designing, engineering and installing complete comfort systems for homeowners and commercial property owners. Gary, his sons and a team of trained professionals bring over 50 years of experience in the HVAC industry, offering unmatched quality, exceptional customer service and family-like treatment to all our customers.

"Great fast and professional"

Lyndon A on November 2024

Family Owned & Operated, Grove Heating and Cooling, Inc. specializes in designing, engineering and installing complete comfort systems for homeowners and commercial property owners. Gary, his sons and a team of trained professionals bring over 50 years of experience in the HVAC industry, offering unmatched quality, exceptional customer service and family-like treatment to all our customers.

"Great fast and professional"

Lyndon A on November 2024


Avatar for L&V HANDYMAN AND REMODELING

L&V HANDYMAN AND REMODELING

5.00(
28
)
Approved Pro

L&V HANDYMAN AND REMODELING

5.00(
28
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2014 years of experience

We have the experience and dedication to get the job done right! Specializing in handyman services; We guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today!

"I have hired this company for a number of things, including doors, floors, backsplash, etc. he is very fair with his prices and very good with his work. I would hire him again if I need anything done, and I totally approve of everything he has done for me and encourage others to hire him."

Bernie M on August 2025

We have the experience and dedication to get the job done right! Specializing in handyman services; We guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today!

"I have hired this company for a number of things, including doors, floors, backsplash, etc. he is very fair with his prices and very good with his work. I would hire him again if I need anything done, and I totally approve of everything he has done for me and encourage others to hire him."

Bernie M on August 2025


Avatar for Bamford Plumbing and Heating Inc

Bamford Plumbing and Heating Inc

4.97(
59
)
Approved Pro

Bamford Plumbing and Heating Inc

4.97(
59
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
2009 years of experience

**SPECIALIZING IN BOILER REPAIR AND REPLACEMENT** ** WE OFFER 24/7 EMERGENCY SERVICE** Bamford Plumbing & Heating Inc. has been providing excellent customer service since 2009. We are a family owned and operated company with 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.

"Great. Doug answered our inquiry promptly and fixed our issue the next day for significantly less than the first quote."

Kevin C on January 2025

**SPECIALIZING IN BOILER REPAIR AND REPLACEMENT** ** WE OFFER 24/7 EMERGENCY SERVICE** Bamford Plumbing & Heating Inc. has been providing excellent customer service since 2009. We are a family owned and operated company with 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.

"Great. Doug answered our inquiry promptly and fixed our issue the next day for significantly less than the first quote."

Kevin C on January 2025


Avatar for Beltway Air Conditioning, Heating & Plumbing

Beltway Air Conditioning, Heating & Plumbing

4.84(
61
)
Approved Pro

Beltway Air Conditioning, Heating & Plumbing

4.84(
61
)
Approved Pro
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
2007 years of experience

Beltway Air Conditioning & Heating , LLC, is a family owned and operated business located in Hanover. We offer everything you need to heat, cool, and improve your indoor air quality in every corner of your home. Our high quality work with a smile is what keeps our customers satisfied. We make sure that we pay close attention to the details and take pride in delivering professional results to you at competitive rates.

"BELTWAY AIR COMFORT SERVICE is a terrible company. Horrible customer service. Incompetent technicians. They came to my home when my AC broke and 13 days later still no update. I called and texted repeatedly and got no response from the company. It's been two weeks in the sweltering heat we still have no AC. First they said they had to order a part, then I they found out they hadn't put the order in for the part. The dispatch was rude and claimed he didn't know who the owner was when I asked to speak to him. I found out these are the same ripoff artists that misdiagnosed my mom's HVAC resulting in her buying an entire new unit for over $10,000, and then the unit kept shutting off because the real problem was a regulator for the gas line. They're incompetent and unprofessional."

Karen B on June 2025

Beltway Air Conditioning & Heating , LLC, is a family owned and operated business located in Hanover. We offer everything you need to heat, cool, and improve your indoor air quality in every corner of your home. Our high quality work with a smile is what keeps our customers satisfied. We make sure that we pay close attention to the details and take pride in delivering professional results to you at competitive rates.

"BELTWAY AIR COMFORT SERVICE is a terrible company. Horrible customer service. Incompetent technicians. They came to my home when my AC broke and 13 days later still no update. I called and texted repeatedly and got no response from the company. It's been two weeks in the sweltering heat we still have no AC. First they said they had to order a part, then I they found out they hadn't put the order in for the part. The dispatch was rude and claimed he didn't know who the owner was when I asked to speak to him. I found out these are the same ripoff artists that misdiagnosed my mom's HVAC resulting in her buying an entire new unit for over $10,000, and then the unit kept shutting off because the real problem was a regulator for the gas line. They're incompetent and unprofessional."

Karen B on June 2025


Avatar for JDL HVAC & Plumbing Services

JDL HVAC & Plumbing Services

4.63(
879
)
Approved Pro

JDL HVAC & Plumbing Services

4.63(
879
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
2010 years of experience

When it comes to great service, customers know they can count on JDL HVAC Services, for all of their home comfort needs. We don't guess and send quotes before the time of service. We quote all repairs or estimate for system replacement, after the system has been evaluated accurately by one of 5 Star Technician. That way we are able to give you an accurate and competitive quote or estimate, with no surprises. We are transparent with our customers, letting them know the best option for their comfort needs. Discover why more and more new customers choose JDL HVAC Services every year. You can be sure of quality heating and cooling solutions from repairs, too new system installations, that will take care of all your HVAC needs. We are fully licensed and insured, so you can rest assured that you are getting the best of the best working in your home.

"Quick response. Clear explanation. Highly recommend "

Derek A on June 2025

When it comes to great service, customers know they can count on JDL HVAC Services, for all of their home comfort needs. We don't guess and send quotes before the time of service. We quote all repairs or estimate for system replacement, after the system has been evaluated accurately by one of 5 Star Technician. That way we are able to give you an accurate and competitive quote or estimate, with no surprises. We are transparent with our customers, letting them know the best option for their comfort needs. Discover why more and more new customers choose JDL HVAC Services every year. You can be sure of quality heating and cooling solutions from repairs, too new system installations, that will take care of all your HVAC needs. We are fully licensed and insured, so you can rest assured that you are getting the best of the best working in your home.

"Quick response. Clear explanation. Highly recommend "

Derek A on June 2025


Avatar for 3MMECHANICAL

3MMECHANICAL

5.00(
20
)
Approved Pro

3MMECHANICAL

5.00(
20
)
Approved Pro
Super Service Award
Customers say: Quick response
2020 years of experience
Emergency services offered

Our mission at 3MMechanical is to continue the growth of our business by doing right by all of our clients. We love seeing that one of a kind smile on a home owners face at the end of a project! 3MMechanical stacks up with the competition and surpasses it with competitive prices, second to none workmanship and a prompt/responsive team! We give you quality that you can measure, and a finished product that will enhance your home forever. Call us today!

"My pro is efficient and knowledgeable. Goes beyond the service with reminders and quick turnaround. Wonderful service great customer service. "

Natasha D on December 2025

Our mission at 3MMechanical is to continue the growth of our business by doing right by all of our clients. We love seeing that one of a kind smile on a home owners face at the end of a project! 3MMechanical stacks up with the competition and surpasses it with competitive prices, second to none workmanship and a prompt/responsive team! We give you quality that you can measure, and a finished product that will enhance your home forever. Call us today!

"My pro is efficient and knowledgeable. Goes beyond the service with reminders and quick turnaround. Wonderful service great customer service. "

Natasha D on December 2025

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Heating and Air Conditioning questions, answered by experts

HVAC replacement doesn't always include ductwork replacement. It depends on the condition of the existing ductwork. You can reuse your ducts if they are in good shape, adequately sized, and meet current standards. However, if the ducts are damaged, poorly designed, or not appropriately sized for the new system, they may need to be replaced or upgraded. HVAC contractors will assess the condition of the ductwork during the replacement process and recommend any necessary modifications or replacements to ensure the new HVAC system operates efficiently and distributes air effectively throughout your home.

Some of the signs of HVAC issues include rising energy bills, rooms not cooling or heating properly, loud noises when in operation, and signs of condensation. To illustrate, if you’re wondering how to stop condensation on air vents, you’ll need to have your HVAC inspected. 

Replacing an evaporator coil costs around $1,350 on average. The coil itself, depending on the size and brand, can cost from $550 to $1,100. Professional labor averages about $700 total. Note that a license is required to work with refrigerants, so it’s necessary to have an AC pro complete this task.

There are several steps you can take to prevent your AC drain from clogging. This includes cleaning the drain line at least every three months, changing the filter every one to three months, and getting your AC serviced annually. Also, if any problems arise with your AC, hire an HVAC technician to deal with them ASAP.

Here’s how AC professionals will clean your AC coils:

  1. Unplug the AC unit or turn off the breaker to the unit in your circuit breaker box.

  2. Remove the faceplate.

  3. Spray a vacuum hose attachment or compressed air can to remove debris, dust, dirt, and grime.

  4. Use a soft-bristled fin comb to remove stubborn caked-on debris.

  5. Use the vacuum hose to suck up any extra debris.

  6. Take a coil-safe cleaning solution and spray it onto the coils. Try to choose a no-rinse solution.

  7. Let the solution sit for at least 15 minutes.

  8. Gently wipe away loosened grime and debris with a microfiber cloth.

  9. Reattach the faceplate, plug in your AC system, or turn the breaker back on.

The Crownsville, 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.

What do you need done? We’ll find top pros.
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