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Find Air conditioning pros in Annapolis

Avatar for Pro-Tech HVAC Home
Pro-Tech HVAC Home
4.9(
84
)
Central A/C - Service or Repair

Serving Annapolis, MD and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Called them Friday 7PM. They came Saturday 3PM and Repaired our outside Central Air Conditioning System, the first time out did not have to come back like other companies. They did not know what Manufacturer I had but had the part and completed the repairs. Chris really helped us stay cool."
Platinum Series
Platinum Series Variable Speed
Platinum Series VS
2 Gold Series Units
Platinum Series 2-stage

+214

Response time4 hrs
Response rate93%
Recommended by98%of homeowners
Avatar for Grove Heating and Cooling Inc
Grove Heating and Cooling Inc
4.7(
153
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+5 more

Serving Annapolis, MD and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"I had them replace my entire HVAC system (furnance + AC). They did a great job through the whole process. Out of four quotes I received, they were the only ones that took the time to do a full heating and cooling load calculation for my house when they came to do an estimate in addition to making detailed measurements of our utility room to make sure anything they installed would fit. They gave me three proposals ranging from low-end, mid-range, and high end options and explained the equipment in each of them in detail, including documenting all the model numbers, efficiency ratings, and specs. What they recommended matched up with my research I did prior to receiving estimates. They were very responsive, knowledgeable, and professional so I gave them the job. The crew arrived on time, worked hard the whole day, were respectful of my house, and did not require supervision (although, they told me I was more than welcome to ask questions and watch anything they were doing). They cleaned up, explained the warranty and rebate options with all the paperwork already filled out so that all I had to do was sign--they even mailed both the warranty and rebate off for me. The whole process went great. While their prices were fair they were not the cheapest, but I have no doubt they did a great job, didn't cut corners, and will stand by their work if I experience any problems. They are a reasonably sized HVAC business and not a one-man-band shop like many places in the area, so I know they will likely still be around through the life of the warranty and are well staffed to respond to emergencies, including a 24/7 emergency service number. Overall, we're very happy with the new system and it's a huge improvement over what it replaced--both the AC and furnace are much quieter than the old units, more energy efficient, and perform better. It's been a month since the install and everything has been working fine without problems."
Response time5 hrs
Response rate100%
19 neighbors recently requested a quote
Avatar for GAC Services
GAC Services
4.8(
293
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Annapolis, MD and surrounding areas

Approved (Corporate)

In business since 1970

Free estimates

Warranties offered

"My experience was fine. I went with this company instead of another company because of the reviews I read on Angie's List. It took them about a half a day to install the air conditioning unit. I think it was 3 workers that came out."
Additional Photos
6 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for SM Mechanical, LLC
SM Mechanical, LLC
4.4(
56
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Annapolis, MD and surrounding areas

Approved

In business since 2001

Free estimates

Credit card accepted

"This is a first rate company. They came on the start date and finished when they said they would. The men were very professional, courteous and they cleaned up when they were done. Their price was reasonable and there were no surprises. They sent the warranty in for us. We had nothing to do except enjoy the new air conditioning system. I would hire them again in a heartbeat."
Multi Zone Oil Fired Hot Water Boiler Install
Gas Furnace/Air Conditioning Full Duct Job
Gas Furnace/Air Conditioning Change Out
Multi Zone Oil Fired Hot Water Boiler Install
Gas Fired  Steam Boiler Install

+18

Response time8 hrs
16 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Carroll Mechanical, Inc.
Carroll Mechanical, Inc.
5.0(
20
)
Central A/C - Service or Repair

Serving Annapolis, 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
100 neighbors recently requested a quote
Recommended by22%of homeowners
Avatar for One Hour Heating & Air
One Hour Heating & Air
4.7(
26
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Annapolis, MD and surrounding areas

Approved

In business since 1949

Free estimates

Emergency services offered

"Alan came on time and thoroughly evaluated my home's HVAC and duct system. He agreed that the duct work that I wanted done would likely solve the issue with my system and home. He was much more thorough that he could have been to satisfy my needs. I already had a quote for a much higher amount from Supreme Service Today who has been servicing my home for about three years. Suspecting that Supreme Service Today's quote was very high, I turned to Angi to get competitive bids. Since I had a bid at a much more reasonable price from Alan at One Hour Heating and Air, I contacted Supreme Service Today and asked for a price match. They were willing to match the much lower price from One Hour Heating and Air, so I gave the business to the HVAC contractor that I've been working with for a few years. Good deal! (: Soon I may break my ongoing contract with Supreme Service and come to One Hour Heating and Air !! :)"
Failed Capacitor
New Capacitor
A/C Unit
Inside A/C Unit
Indoor Unit

+17

Response time2 hrs
Response rate93%
12 neighbors recently requested a quote
Avatar for JDL HVAC & Plumbing Services
JDL HVAC & Plumbing Services
4.5(
950
)
Central A/C - Service or RepairCentral Humidifier - Install or ReplaceCentral Humidifier - Repair or Service

Serving Annapolis, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"Mr Isak fix my air conditioning Outside unit and performed a system check. During the service check he found the installation booklet inside the unit which could have caused additional problems. Mr Isak was very professional and had a great personality. I would definitely recommend this company to anyone looking for service."
NEW INSTALL
CLEANING COILS
CLEANING COILS
 CLEANING COILS
 CLEANING COILS

+118

Response time5 hrs
191 neighbors recently requested a quote
Recommended by91%of homeowners
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FAQs for air conditioning projects in Annapolis, 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 Annapolis, MD homeowners’ guide to air conditioning services

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