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Find Air conditioning pros in Randallstown

Avatar for No-Frost Air Conditioning & Heating, LLC
No-Frost Air Conditioning & Heating, LLC
4.7(
411
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+6 more

Serving Randallstown, MD and surrounding areas

Approved

In business since 1971

Free estimates

Warranties offered

"This is an excellent company. We have used them for year to service our heating and air conditioning units. It became necessary to think about replacing the units. We have two. Decided to replace both at the same time. They came out on a Monday and gave us an estimate and came out on Thursday and Friday to do the work. They totally cleaned up after themselves and made sure everything was working properly. Then they called a few days later to see that everything was working well. I highly recommend this company. All the technicians are polite and competent. The office staff is nice beyond belief. If you need any heating/AC work done, this is the company to do it."
Additional Photos
Additional Photos
Additional Photos
Response time9 hrs
Response rate100%
21 neighbors recently requested a quote
Avatar for GLM Mechanical Services, Inc.
GLM Mechanical Services, Inc.
4.6(
66
)
Central A/C - Install

Serving Randallstown, MD and surrounding areas

Approved

In business since 1978

Free estimates

Credit card accepted

When looking for professional HVAC services, look no further than GLM Mechanical Services, Inc. \nWhat we offer is honest, open estimating, with strict attention to detail and on time delivery. All we ask is when calling PLEASE speak english. WE can't help you if we can't understand what you need to tell us. Unfortunately, we do not offer attic installations when outdoor temperatures are so hot that attic temperatures can reach 100 degrees or higher. We cannot ask our employees to work under those conditions. We can bring to the table a level of expertise not usually available to residential projects. We have several years experience providing prompt and reliable services building your dreams into reality. We will always meet and exceed all expectations. Proudly handling the Goodman and Airtemp brands of HVAC equipment. Give us a call, you will be glad you did. \n \nWe now accept Visa, Mastercard, & Discover.

Recommended by100%of homeowners
Avatar for Graham Solution LLC
Graham Solution LLC
5.0(
19
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Randallstown, 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!"
HVAC
HVAC
HVAC
HVAC
HVAC

+5

2 neighbors recently requested a quote
Avatar for JDL HVAC & Plumbing Services
JDL HVAC & Plumbing Services
4.5(
951
)
Central A/C - Service or RepairCentral Humidifier - Install or ReplaceCentral Humidifier - Repair or Service

Serving Randallstown, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"I am happy to write this review about JDL HVAC Services LLC. From start to finish; Amber, who setup my initial appointment was very nice & professional. Ire, the technical associate was prompt, very knowledgeable and got my system working again with a temporary fix. I opted for a new heating unit (which was reasonably priced) and all of the technical associates were easy-going and very professional. They were organized, used protective foot coverings and protective coverings for my floors, and cleaned up after the job. Special thanks to the entire team led by Armando; Jerel, Fernando, Michael, & Conrad. NOW, thanks to JDL HVAC, I FINALLY have a properly installed & functioning heating/air conditioning unit. I highly recommend this company!"
NEW INSTALL
CLEANING COILS
CLEANING COILS
 CLEANING COILS
 CLEANING COILS

+118

Response time5 hrs
247 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Pohlman Plumbing Inc
Pohlman Plumbing Inc
4.4(
42
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+10 more

Serving Randallstown, MD and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

Pohlman Plumbing is a local, family-owned and -operated full-service plumbing and HVAC company serving the Baltimore metro area. Founded in 2008, our professional and friendly customer service plus our top-notch skills have made us one of the most trusted local plumbers in Baltimore. \n \nWhen you choose to work with Pohlman Plumbing, you can have peace of mind knowing we always stand by the Pohlman Promise: fast service, at a fair price, and done right the first time.

Finished Shower
Finished Shower
Panoramic View
Vanity
Mid-replacement

+10

Response time8 hrs
Response rate97%
Recommended by86%of homeowners
Avatar for Heil Plumbing & Hvac
Heil Plumbing & Hvac
4.9(
252
)
Central A/C - Install

Serving Randallstown, MD and surrounding areas

Approved

In business since 1975

Free estimates

Emergency services offered

"We had a leak in the underground water supply line (polyblue) running from the County connection valve in the front yard to our townhouse. When I noticed the problem, the water was going all over the neighbor's yard. I called Heil Plumbing around 5:30PM that day and though their office was closed, I dialed their  emergency contact number and reached Tom. He gave me the County utilities emergency number to call to get the service turned off, and that he will call back with a time for someone to come out. He then called  back within a half hour to say Mr. Heil would be able to come that  evening to give an estimate. Mr. Heil drove up around 7PM and gave me an estimate that was about two-thirds of what my immediate neighbor was quoted for the same issue about 6 months ago - to replace the existing leaking polyblue line with 3/4" copper, which was the best option rather than trying to repair the polyblue, which would only leak again. We had about 25 feet of line to replace, at a depth of about 5-6 feet. He also said at the time that the quote would be $700 more if they had to break/replace the concrete porch. I asked him to go ahead and complete the work as soon as possible since we were without water by then. Mr. Heil stated that they would be able to come out the next morning by 8AM at the latest.
The next morning at 7:45AM a crew of three arrived with a backhoe, dump truck, plumbing truck and air compressor (I assumed for a jack hammer if they had to break up concrete and for tamping soil). They had a contract written up for the exact quote given earlier. Once I had signed, they hand dug two small pits, one by the house foundation, the other by the County meter valve. They used plywood sheets to put the excavated soil on, which saved the rest of the yard grass.  Luckily for me they didn't have to break any concrete. They located the two ends of the leaking polyblue line, pulled a steel cable through it, and then using the backhoe bucket and some equipment, pulled through the new copper line while pulling out the old plastic line. Then the new copper line was connected to the copper line coming out of the house and to the meter valve box. They then turned on the water and checked all the inside faucets. The kitchen faucet sprayer head was somehow blown out by the air being forced out when they turned the water on, and they replaced that free of charge. They then filled in the soil, compacting soil lifts with a tamper as they should, seeded and mulched the top of the disturbed area, and cleaned everything up. Took away a little bit of extra soil. Everything was done by 12.30 PM. They charged only what they had estimated, and like I said before, even replaced a faucet piece that came off when the water was turned on, free of charge. I was very impressed with the professionalism, promptness and quality of work shown by Joseph Heil Company, and recommend them very highly. I not only saved almost $1000 because their fee was low, I also saved a few hundred more I would have had to spend on hotel rooms if they had not been so prompt.
"
Response time9 hrs
26 neighbors recently requested a quote
Recommended by94%of homeowners
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FAQs for air conditioning projects in Randallstown, 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 Randallstown, MD homeowners’ guide to air conditioning services

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