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TRUSTED BY DUNDALK, MD HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon734
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Dundalk

Avatar for Heating & Cooling Certified Mechanic
Heating & Cooling Certified Mechanic
5.0(
35
)

Serving Dundalk, MD and surrounding areas

Approved

Super Service Award Winner

Free estimates

Emergency services offered

Warranties offered

"Michael advised me on my options concerning the HVAC system issue. Based on his expert recommendations, i made a decision. The work was completed very well! I will hire Heating & Cooling Certified Mechanic again for all HVAC services and recommended this company."
Installation
Installation
Installation
Installation
Installation

+20

31 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Pure Air HVAC, LLC
Pure Air HVAC, LLC
4.8(
73
)

Serving Dundalk, MD and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

"Really fast and professional service when our HVAC broke in the peak of summer. Had it up and running in almost no time. My advice to first time homeowners like me in these cases is to always make sure you know what repairs and actions are being done. It'll help in regards to money."
Carrier Infinity 16 SEER Heat Pump
Masters license
Carrier Infinity Series 16 SEER Heat Pump
Carrier 90% Propane Gas Furnace
Carrier Heat Pumps 16 SEER

+8

Response time5 hrs
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for VICTORY HVAC LLC
VICTORY HVAC LLC
5.0(
17
)

Serving Dundalk, MD and surrounding areas

Approved

In business since 2025

Emergency services offered

Small jobs welcome

"Yossi takes pride in the work he does. He is my hvac install / repair guy for all my apartments and my commercial building. He is very skilled and confident; he can solve any problem. His prices are fair."
Setting air handler
duct work
Return air box
Supply ductwork
air handler set up

+23

3 neighbors recently requested a quote
Avatar for Regal Duct Cleaning
Regal Duct Cleaning
4.9(
68
)

Serving Dundalk, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Credit card accepted

"Julius has been really helpful and knowledgeable about how HVAC works. He cleaned the system really good and I have no problems at all. Was very professional and thorough with the job; made sure we were well informed of what we having performed and offered services without pressure. Really happy we went with this company. Highly recommend!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+12

1 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Pohlman Plumbing Inc
Pohlman Plumbing Inc
4.4(
42
)

Serving Dundalk, MD and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"This company came highly recommended, as many of today's technicians cannot service traditional "steam" boiler systems. Ever since last year's "furnace emergency", this "Old House" here found "its rescue match" with Pohlman Plumbing & CJ, a highly skilled specialist, who tweaked the boiler back to "steam". Explaining why my Amish-built "Oldie-Goldie" was here to last, CJ enjoyed "challenges" & was not trying to "up-sell". This positive experience of transparency & trust convinced us that we'd found "the" company for all our "Old House" future HVAC & plumbing needs, thx!"
Finished Shower
Finished Shower
Panoramic View
Vanity
Mid-replacement

+10

Response time10 hrs
Recommended by86%of homeowners
Avatar for Paramount Heating & Air Conditioning, LLC
Paramount Heating & Air Conditioning, LLC
4.7(
117
)

Serving Dundalk, MD and surrounding areas

Approved

In business since 2008

Emergency services offered

Warranties offered

"We came in to work one day, to find there was no AC in our offices. It was 90+ degrees that day, and as owner of the company, I saw that there was going to be little to no productivity that day. I called several companies, only to be told it would be a day or two before they could service our system. I was on the verge of sending everyone home, because the fans I purchased, just weren't doing the trick. Then, I called Paramount. Alan was at our offices within the hour. He determined it was a fan motor, and after a short trip to his office, had the new fan in hand. He also recommended replacement of a capacitor that he deemed to be on it's last leg. I figured he'd have to run to his shop again to get that, but he showed me a Full Stock of parts he had in his van. I'm in the Service Industry, and I have to admit I was impressed how stocked and organized his truck was. I was expecting a high bill, due to the response time and having to run back to his shop for fan. I was somewhat shocked how reasonable the bill was, and even added a little extra! Alan stayed around for a short time afterwards, and gave me some tips on what to do to keep my AC unit running efficiently. We have recommended Paramount to several companies and friends since this time, and they all have been pleased. We found our permanent Heating and Air company, and highly recommend Paramount to all. Thanks Again Paramount, and especially Alan, for doing a Great and Professional job! Russell with DTS Communications in Nottingham"
Recommended by100%of homeowners
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Showing 1-10 of 586
Heating and Air Conditioning questions, 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.

You may be able to clean mold from your air conditioner in some cases. If the mold growth only takes up a small area, you can use either vinegar or bleach mixed with water to remove it. Larger areas of mold should be left to the professionals, though. It's also a good idea to leave mold removal to the pros if you are sensitive to mold or have asthma. 

A window AC unit is not completely silent. You’ll hear the sound of air blowing, and if you put your ear right up next to the unit, you may hear a slight hiss or gurgle as the refrigerant flows through the system. That said, if your system is making a running water sound, a loud banging sound, a grinding sound, or physically vibrating, you may be facing an issue or malfunction with your AC unit.

Window ACs use 500 to 1,400 watts per hour of electricity, while mini-splits use 500 to 700 watts per hour. However, if you need to cool multiple zones in your house, your mini-split can use as much as 2,000 watts per hour. How often you run your system will impact how much electricity you use (and how much you pay per month).

Deciding whether to replace just the AC coil or the entire system depends on the age of your unit and the overall cost. Replacing a coil is less expensive than a full system replacement, but it can still be a pricey repair. If your HVAC system is relatively new and still under warranty, or if the replacement cost is significantly lower than a new system, replacing the coil can be a worthwhile investment that restores efficiency and extends the unit's life. However, for older systems (nearing the end of their 10-15 year lifespan) or those with extensive damage, it is often more cost-effective to replace the entire AC unit. Mismatched coils in an older system can lead to inefficiency and future breakdowns, so a full replacement ensures optimal performance and avoids further costly repairs.

The Dundalk, 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.