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TRUSTED BY HIGHLANDTOWN, MD HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon564
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Highlandtown - Updated Nov 2026

Avatar for Graham Solution LLC
Graham Solution LLC
5.0(
19
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+6 more

Serving Highlandtown, MD and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"I couldn?t be happier with the experience. Graham Solution handled the entire installation from start to finish, and the quality of the work was outstanding. He was professional, knowledgeable, punctual, and paid close attention to every detail. The installation was completed efficiently, everything was left clean when the job was finished, and the system works perfectly. It?s hard to find someone who takes this much pride in their work, and it definitely shows. I highly recommend him to anyone looking for reliable, high-quality HVAC installation. Excellent workmanship and great customer service from start to finish!"
Full system replacement
Service / repair
Service / repair
Service / repair
Service / repair

+5

2 neighbors recently requested a quote
Avatar for Regal Duct Cleaning
Regal Duct Cleaning
4.9(
70
)
Air Ducts & Vents - Clean

Serving Highlandtown, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Credit card accepted

"I used Regal Duct Cleaning today. Our home is 60+ years old. We have only lived in it for 20 months and there was more dust, dirt and webs than I had ever imagined. Julius and his crew arrived at the scheduled time. He was extremely professional. We went from room to room looking at every every vent, cold air return. His crew worked for five hours, cleaning the ducks, dryer vent and installed a UV light. I highly recommend Regal Duct Cleaning . I will definitely use them again! To see the before and after pictures was a real eye opener. Great Job!"
Additional Photos
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+12

Response time8 hrs
Recommended by91%of homeowners
Avatar for The Best Air Quality and Restoration
The Best Air Quality and Restoration
4.8(
236
)
Air Ducts & Vents - Clean

Serving Highlandtown, MD and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Great! He provided additional information, suggesting I install a UV Light Air Purifier to my HVAC system. Which would help eliminate the possibility of mold growing in my vents."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+50

Response time10 hrs
1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for AMERICAN HVAC SOLUTIONS LLC
AMERICAN HVAC SOLUTIONS LLC
5.0(
9
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Install+15 more

Serving Highlandtown, MD and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"American HVac solutions did amazing job for my A/C repair. We have had an AC issue for 6 months . Now this company fixed the problem fast . they are reliable and fair priced . Mr Yonas is amazing specialist and great experience . I definitely recommend using this company."
New system replacement
New system replacement
New system replacement
New system replacement
23 neighbors recently requested a quote
Avatar for Supreme Service Today
Supreme Service Today
4.4(
475
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairHeat Pump - Repair or Service+4 more

Serving Highlandtown, MD and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Overall the job went well. We needed a new HVAC system which included a new gas furnace and new AC unit. The sales rep was punctual and responsive to questions. The installation team was punctual as well. The B ratings in some categories is due mostly to communication issues to occurred. Apparently some of the things the sales rep agreed to with us were not communicated to the installation team, so when they invited me down to inspect the work three minor items had not been completed. After I brought it up, the installation team offered to do the work in order to ensure I was satisfied, but they also brought up some valid points on why having that work done may not be what I actually wanted. Therefore I was confused. After calling the company main office, the owner owner called me back within 30 minutes to talk through options to ensure I was satisfied with the job. We agreed that two minor items didn't need to be changed, and he offered an upgrade on the third item, at no additional cost to achieve the functionality that was missing from the third minor item. That component was installed the next day. Lastly, the installation team missed some small trash items when they cleaned up the exterior part of the job."
Response time1 day
Response rate100%
52 neighbors recently requested a quote
Avatar for At Your Service Heating & Cooling, LLC
At Your Service Heating & Cooling, LLC
4.3(
194
)
Electric Furnace / Forced Air Heating System - RepairGas Furnace / Forced Air Heating System - RepairGas Boiler or Radiator Heating System - Repair+1 more

Serving Highlandtown, MD and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"Their technician Jason Lord was a true professional. Not only was he proficient and highly skilled at his craft but was a true professional with his customer service skills. It is very rare to have both qualities of mechanical skills and customer service expertise. I would recommend this company to anyone that needs HVAC repair."
Dundalk
Billboard 2
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Billboard 5

+1

Response time11 hrs
Response rate95%
2 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

No, you should not attempt to replace an AC evaporator coil yourself. This is a complex task that must be performed by a licensed HVAC technician. The process involves handling hazardous and flammable refrigerants, which poses significant safety risks. Attempting a DIY replacement can also cause further damage to your HVAC system and will likely void its warranty. It is necessary to hire a local AC repair professional for this job.

Split systems are the most common type of HVAC system. Split systems have two main units: an indoor one and an outdoor one. These units work together to pull in air, heat or cool it, and distribute it throughout your home. Other popular types of HVAC systems include hybrid systems and packaged heating and air systems.

The cost of annual maintenance depends on the type of HVAC system you have. AC service typically costs an average of $200 but ranges from $100 to $550. If your system needs repairs, the price will vary significantly depending on what needs fixing. However, addressing the issues as they arise can prevent further damage to your unit and keep it operating efficiently for much longer.

One of the fastest ways to unfreeze an AC unit is to turn off the unit and, if it’s warm outside, use the fan-only mode to help blow warmer air through the unit to speed up the defrosting process. While it may be tempting to use a hair dryer to defrost the air conditioner, that high heat can damage the coils.

After defrosting, if you can safely solve the issue with a fix like changing the filter, go ahead and do so. Otherwise, call in a pro before turning your AC back on.

Your AC might not cool after a power outage because of a tripped circuit breaker, blown fuse, or damage to the compressor or capacitor. If you notice your AC not working after a power outage, in most cases, the breaker has tripped or the system has built-in brownout and blackout protection. Reboot the AC by turning it off at the thermostat, resetting the circuit breaker, and waiting 30 minutes to turn the AC on again. 

The Highlandtown, 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.