Get matched with top air conditioning pros in Overlea, MD

Q: What does a bad AC sound like?

• <div><p>There are plenty of different not-so-great sounds to hear from your air conditioning unit, like squealing, grinding, water running, excessive gurgling, banging, and clanking. Each of these sounds can indicate a different malfunction with your unit, so it&rsquo;s important to have a professional assess the problem before it gets worse.</p></div>

Q: What is the AC unit on the roof called?

• <div><p>If you&rsquo;re shopping around for a rooftop AC unit, you may hear them referred to as &ldquo;package units.&rdquo; That&rsquo;s because rooftop AC systems are all-in-one heating and cooling units that connect directly to your home&rsquo;s ductwork. If your AC repair pro references a package unit, they are referring to the system on your roof.</p></div>

Q: Are AC tuneups worth it?

• <div><p>Yes. In fact, not only are <a href="https://www.angi.com/articles/importance-annual-ac-tune.htm">AC tuneups</a> worth it, but they&rsquo;re actually necessary to keep your air conditioner in good condition, improve its efficiency, and potentially prevent major damage. Experts recommend getting a tuneup at least once per year. In most cases, you&rsquo;ll want to schedule it during the spring so that you can address any issues before the hottest months of the year.</p></div>

Q: Can I save on my air conditioner capacitor cost by installing the unit myself?

• <div><p>Yes, you can potentially save $60 to $200 by handling your own air conditioner capacitor installation. However, capacitor replacement comes with the risk of electric shock. Only attempt this if you have the knowledge and protective gear to carry it out safely. Otherwise, we recommend hiring an HVAC pro with the experience to properly diagnose the issue and avoid damaging other parts of your AC unit.</p></div>

Q: Do all portable AC units need to be drained?

• <div><p>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.</p></div>

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Verified Reviews for Air Conditioning pros in Overlea, MD

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

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

Last update on July 17, 2026

Reviewed in July 2026
Recently had a mini-split that had two indoor handlers and one exterior. One side was super cold and the other side was barely cold. I contacted Tetteris HVAC, LLC late in the afternoon. They answered my call, was able to schedule my appt for the next day. We received updates via text on...
Tetteris Hvac llc
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Reviewed in July 2024
Vernon offered to check out our AC the same day. He called before arriving, and once he was here quickly went about his work, explaining to me what he was going to do and why. He quickly diagnosed the problem and solved it. We’ve found a new HVAC maintenance company we can count on. Great...
Hamilton Plumbing, Heating & Air Conditioning
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Reviewed in May 2022
A mini split system was installed in the spring. Since it has not been hot enough to use, I can't rate the performance. They seemed to do a very thorough job, cleaned up and did little damage. I did have a complaint. The company responded in an unhelpful, unprofessional and surprising manner. I...
Elmar Services
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Reviewed in February 2022
Price for radon Air Mitigation was $1500.00, most others were $1000-$1200. The person that gave the estimate was very personable and answered all my questions. Felt good about the company but they were the most expensive of all my estimates.
Atlantic Blue Water Services
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Reviewed in August 2021
I had done my research on the ductless AC that I desperately needed for our 3rd floor master bedroom. I recieved several estimates from several companies. This company's sales rep did an honest assessment at a great price. This AC unit is really life changing. I would highly recommend them.
SM Mechanical, LLC
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Reviewed in August 2021
Awesome job on fixing my AC unit!
Amazing Heating and Air Conditioning, Inc.
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Reviewed in June 2021
Project: replace siding that was blown off by the wind. replace non insulated flexible HVAC duct work with insulted flexible duct work move the air register and painted 4 interior doors and replaced missing lattice (wind damaged) to the jacuzzi enclosure. five stars.
Comfortable Homes Remodeling
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Reviewed in July 2020
Excellent service. Installed central AC in half a day! Ac is top quality and it works perfectly.
At Your Service Heating & Cooling, LLC
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Reviewed in September 2019
Mr Guinn and his staff are wonderful, and professional.I recommend this company to anyone that needs central air conditioning service, I definitely will be using them again on all my projects
D & K Air Systems, Inc.
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Reviewed in August 2019
My air condition system was repair and now it running good and our home is cool again
K&B HVAC SERVICES LLC
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Find Air conditioning pros in Overlea

DUCTZ of the Upper Bay Region

4.9(

121

)

Air Ducts & Vents - Clean

Serving Overlea, MD and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Ductz of the Upper Bay Region cleaned my ductwork today. The team was professional and friendly. The cost was stated in advance as a firm price and not an estimate. They took before and after pictures which I found very helpful. The owner and his team went above and beyond to suggest ways that I can best maintain my A/C system to minimize the need for cleanings in the future. I recommend them highly."

Response time8 hrs

5 neighbors recently requested a quote

Recommended by99%of homeowners

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Blessed Cooling N Heating Services, LLC

4.9(

)

Central A/C - Service or Repair

Serving Overlea, MD and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"Aaron is professional, friendly, honest and was very knowledgeable. Walked us through the process from start to finish. He went above and beyond and gave me great tips to increase the lifespan of my AC unit. I would recommend him to anyone needing HVAC services"

Response time50 mins

Recommended by93%of homeowners

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Bamford Plumbing and Heating Inc

4.8(

)

Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Overlea, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Emergency services offered

Warranties offered

"Doug was helpful and responsive; he did a number of small plumbing projects for us.
"

Do you know if your sump is still working? We also have sump pumps avialable to protect you from power outages. That’s right no power no problem forget about the “battery back up” sump pumps if you have municipal water supply this is the way to go call today for details !

Tree roots giving you problems with your drains? Have us come out today and try a Rootx root treatment !

4 neighbors recently requested a quote

Recommended by98%of homeowners

Air Ducts & Vents - Clean

Serving Overlea, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Credit card accepted

"Excellent service! Avraham and Angel were professional, thorough, and courteous. They cleaned our dryer vent, air ducts, and heater, and also installed a UV light. They took before-and-after photos so we could clearly see the results, which was greatly appreciated. They did an excellent job and left everything clean when they finished. Highly recommend!"

+12

Response time8 hrs

1 neighbors recently requested a quote

Recommended by92%of homeowners

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The Best Air Quality and Restoration

4.8(

236

)

Air Ducts & Vents - Clean

Serving Overlea, MD and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"It started off with requesting a quote through Best Air Quality and Restoration. The response time was great. The technician who showed up informed us in advance of his arrival, was very polite, followed Covid-19 safety protocols, was very thorough and did a great job. I also got the dryer vent cleaning which was the complete deal (going to the attic, removing the vent pipe and cleaning the debris). Some other companies claim they do dryer vent cleaning but only vacuum the dryer duct and do not perform the complete dryer vent cleaning which is more involved. I'm very happy with the service and this company and have already recommended them too many of my friends. Keep up the great service Best Air Quality and Restoration!"

+50

Response time10 hrs

Recommended by93%of homeowners

Window A/C Unit - Service or RelocateCentral A/C - Service or Repair - For Business

Serving Overlea, MD and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Mr Norwood gave us valuable information on our AC unit which be able use in the future. Same day response and work completed."

Response time2 hrs

Response rate85%

1 neighbors recently requested a quote

Air Ducts & Vents - CleanCentral A/C - InstallCentral A/C - Install - For Business+4 more

Serving Overlea, MD and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Pohlman responded quickly when my water heater leaked and quickly replaced it at a competitive rate. I asked for multiple quotes and they were one of the first to respond. I appreciate the work, although I would have preferred to know which water heater was being installed before they put it in."

+10

Response time8 hrs

Response rate97%

Recommended by86%of homeowners

Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Overlea, MD and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"I had a great experience with this HVAC company! They were professional, arrived on time, and quickly diagnosed the issue with my air conditioning unit. They explained the repair clearly, completed the work efficiently, and had my AC running perfectly again. The technician was courteous, knowledgeable, and took the time to answer all of my questions. I really appreciated the honest service and fair pricing. I highly recommend them to anyone looking for reliable HVAC service!"

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Carroll Mechanical, Inc.

4.6(

)

Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Overlea, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Warranties offered

"Great and Professional Service. Loved the new Carrier Heater that was installed"

Response time10 hrs

239 neighbors recently requested a quote

Recommended by15%of homeowners

Central A/C - Service or RepairCentral A/C - Install

Serving Overlea, MD and surrounding areas

Approved (Corporate)

In business since 1945

Free estimates

Emergency services offered

"The sales rep was very attentive when coming over and designing a solution to our heat and air needs. We were able to get a large team of workers here and knocked out an entire house install in one day. Some trash and miscellaneous items were left in our yard. When we needed additional items from the sales rep he will respond back saying he will take care of it but still has not. I have brought this up to him over 4 times and I still get nothing. The price seemed pretty high, and we had to shop the price around some but the company came with good financing options and some guarantees that others could not. The mini-split units work great."

1065 neighbors recently requested a quote

Recommended by73%of homeowners

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...

Showing 1-10 of 436

Air Conditioning questions, answered by experts

There are plenty of different not-so-great sounds to hear from your air conditioning unit, like squealing, grinding, water running, excessive gurgling, banging, and clanking. Each of these sounds can indicate a different malfunction with your unit, so it’s important to have a professional assess the problem before it gets worse.

If you’re shopping around for a rooftop AC unit, you may hear them referred to as “package units.” That’s because rooftop AC systems are all-in-one heating and cooling units that connect directly to your home’s ductwork. If your AC repair pro references a package unit, they are referring to the system on your roof.

Yes. In fact, not only are AC tuneups worth it, but they’re actually necessary to keep your air conditioner in good condition, improve its efficiency, and potentially prevent major damage. Experts recommend getting a tuneup at least once per year. In most cases, you’ll want to schedule it during the spring so that you can address any issues before the hottest months of the year.

Yes, you can potentially save $60 to $200 by handling your own air conditioner capacitor installation. However, capacitor replacement comes with the risk of electric shock. Only attempt this if you have the knowledge and protective gear to carry it out safely. Otherwise, we recommend hiring an HVAC pro with the experience to properly diagnose the issue and avoid damaging other parts of your AC unit.

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.

The Overlea, MD homeowners’ guide to air conditioning services

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

See all articles

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•
Jul 8, 2026Jul 8, 2026
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•
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•
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•
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•
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•
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Cooling your home in hot, dry climates can be a challenge. How do you keep your home cool? Learn whether an evaporative versus swamp cooler is your best option.