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Find Air conditioning pros in Linthicum Heights

Avatar for Grove Heating and Cooling Inc
Grove Heating and Cooling Inc
4.7(
153
)

Serving Linthicum Heights, MD and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Grove did a great job in presenting all options for our new AC system and potential air cleaning systems (without making any aggressive sales pitches), and then did a great job with installing the new system. The new system has been in place for a few weeks now and is working very well - great job by Grove."
Response time3 hrs
21 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for GAC Services
GAC Services
4.8(
291
)

Serving Linthicum Heights, MD and surrounding areas

Approved (Corporate)

In business since 1970

Free estimates

Warranties offered

"I am not normally inclined to write reviews about a vendor's performance, but in the case of GAC, I am compelled by gratitude to sing their high praises.  
My wife and I purchased a new older detached home in Rockville in the summer of 2014.  After receiving a variety of estimates, we settled on GAC to replace our HVAC system, which was about 25-years old.  They gave us a great deal on a mid-priced high efficiency system, and did a first class job on the installation.  But that's only the beginning of the story.
Once installed, we had GAC return to seal our ducts to maximize efficiency.  During the sealing process, they discovered that there was a major leak somewhere in our duct work.  The leak was so big they estimated we were losing about a ton of air inside our walls because of it -- one third of the energy produced by a three-ton system!  What a waste!
Uncertain of where the leaks were coming from, the president of the company -- himself a master technician -- returned to survey the ductwork using a thermal imaging gun, which detected an elevated heat signature in one of the main trunks coming off of the new furnace.  When he cut open the sheetrock, he found a 14" x 16" hole where a poorly repaired patch had given way years earlier.  He and his team also found and replaced (just for cost of materials) several poorly insulated duct pipes in the attic that were also contributing to the problem.
Now, fast forward to the summer of 2015.  While very pleased with our new HVAC system, we noticed that the second floor of the house was about 8-10 degrees warmer than the first floor -on the hottest days  -- not an uncommon problem for an older home.  So, we contacted GAC to see if there was anything they could do to improve sleeping conditions on the second floor.
Who comes out to do our semi-annual inspection and tune-up?  You guessed it -- the president of the company!!  He spends an hour tweaking things and presto -- the entire house is cool and comfy, and our energy bills are less than they were when we lived in a townhouse.
As customer experience goes, it doesn't get any better than that!
David S."
Additional Photos
61 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for McCrea Heating & Air Conditioning Services of MD
McCrea Heating & Air Conditioning Services of MD
4.5(
318
)

Serving Linthicum Heights, MD and surrounding areas

Approved

In business since 1936

Free estimates

Emergency services offered

"Assesed overall condition of Unit as well as recommendations regarding repair/replacement. This went well. Prices discussed, however have not commited to follow thru with this company. Looking for more competitive pricing"
Additional Photos
Additional Photos
Additional Photos
13 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Bamford Plumbing and Heating Inc
Bamford Plumbing and Heating Inc
4.8(
65
)

Serving Linthicum Heights, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Emergency services offered

Warranties offered

"Saved me $$! BGE home checked my furnace and said I needed to replace lots of stuff. Doug came out and identified the real problem and saved me hundreds of dollars. Definitely would recommend this company."
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 !
Tankless
Power Vent
Gas and Electric
Tree roots giving you problems with your drains? Have us come out today and try a Rootx root treatment !

+2

4 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Beltway Air Conditioning, Heating & Plumbing
Beltway Air Conditioning, Heating & Plumbing
4.8(
74
)

Serving Linthicum Heights, MD and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"Dave the Tech was great. He called ahead to let me know he would be here in about 15 minutes and he arrived in the 15 minutes. He was courtesy and helpful and checked the unit inside and out. He explained every thing he was doing and what he found and how it could be fixed. Dave even took the time to talk to my husband over the phone on the issues he was finding. It was quite clear that Dave knew his stuff. I highly recommend Beltway Air Conditioning and Heating, LLC. I am definitely keeping their number by my phone."
Brazing
XC25
XC25
Our Team!
Response time1 day
Recommended by96%of homeowners
Avatar for Carroll Mechanical, Inc.
Carroll Mechanical, Inc.
5.0(
19
)

Serving Linthicum Heights, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"My air conditioning stopped working last night. I called Carroll mech . They responded immediately and sent technician to the house few hours later. Jordan Scott was very professional. He checked the system carefully and fix the issue soon. Really appreciate the service!"
Trane Heat Pump
Carrier AC + Furnace
Response time5 hrs
75 neighbors recently requested a quote
Recommended by23%of homeowners
Avatar for JDL HVAC & Plumbing Services
JDL HVAC & Plumbing Services
4.5(
949
)

Serving Linthicum Heights, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"JDL HVAC Services has serviced my air conditioning and heating systems. The tech, Mr. Xavier did an outstanding job. I would highly recommend this HVAC company."
NEW INSTALL
CLEANING COILS
CLEANING COILS
 CLEANING COILS
 CLEANING COILS

+118

Response time4 hrs
51 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Blue Dot
Blue Dot
4.1(
345
)

Serving Linthicum Heights, MD and surrounding areas

Approved (Corporate)

In business since 1982

Free estimates

Emergency services offered

"Paul S, the tech who came to maintain my furnace and air scrubber system was very knowledgeable, friendly, communicative and extremely helpful. The appointment system and text updates are terrific! Thank you to all!"
System Installation
490 neighbors recently requested a quote
Recommended by72%of homeowners
Avatar for Horizon Services, LLC (MD)
Horizon Services, LLC (MD)
3.8(
1,464
)

Serving Linthicum Heights, MD and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"Fantastic company from start to finish! The gentleman who sold us the furnace, their salesman, Alex, was upfront in getting us the best price, along with a 10 yr parts and labor warranty included! The price for the furnace and installation was great, and they guaranteed apples to apples to meet any other companies cost. They offer a $100. fee if we found anyone to do it cheaper, with the same offer. They were able to schedule the intallation quickly, and did a great job intalling it. I would highly recommend using this company for your heating and air conditioning needs. Great company! Great prices! Great work! You won't be disappointed using Horizon Services! Take care....."
Horizon Services Heating and Cooling
Horizon Services Heating and Cooling
Horizon Services Heating and Cooling
Horizon Services Heating and Cooling
Horizon Services Heating and Cooling

+27

6 neighbors recently requested a quote
Recommended by89%of homeowners
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FAQs for air conditioning projects in Linthicum Heights, MD

Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.

Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.

Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.

Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.

Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.

The Linthicum Heights, MD homeowners’ guide to air conditioning services

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