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Find Air conditioning pros in Havre De Grace

Avatar for Blessed Cooling N Heating Services, LLC
Blessed Cooling N Heating Services, LLC
4.9(
17
)
Central A/C - Service or Repair

Serving Havre De Grace, MD and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"Aaron is professional, friendly, honest and was very knowledgeable. Walked us through the process from start to finish. He went above and beyond and gave me great tips to increase the lifespan of my AC unit. I would recommend him to anyone needing HVAC services"
Response time50 mins
Recommended by93%of homeowners
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Avatar for One Hour Heating & Air
One Hour Heating & Air
4.7(
26
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Havre De Grace, 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%
8 neighbors recently requested a quote
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Avatar for HVAC Detectives
HVAC Detectives
4.3(
134
)
Window A/C Unit - Service or RelocateCentral A/C - Service or Repair - For BusinessCentral Air Cleaner - Install or Replace+2 more

Serving Havre De Grace, MD and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"I would use Johnâ s services again and heâ s very knowledgeable. I would highly recommend him to my friends and family."
Central ACs
Furnace repairs
Furnace repairs
Furnace repairs
Furnace repairs

+7

Response time2 hrs
Response rate85%
1 neighbors recently requested a quote
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Avatar for SM Mechanical, LLC
SM Mechanical, LLC
4.4(
56
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Havre De Grace, 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
7 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for Blue Dot
Blue Dot
4.1(
352
)
Central A/C - Service or RepairCentral A/C - InstallCentral Air Cleaner - Install or Replace+3 more

Serving Havre De Grace, MD and surrounding areas

Approved (Corporate)

In business since 1982

Free estimates

Emergency services offered

"I purchased the Annual Maintenance Plan for my Heating & Air Conditioning systems. Blue Dot has excellent customer service. Adrian serviced my heating system yesterday and he was great!!"
System Installation
551 neighbors recently requested a quote
Recommended by70%of homeowners
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Avatar for Aire Serv of Bel Air
Aire Serv of Bel Air
4.7(
6
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+12 more

Serving Havre De Grace, MD and surrounding areas

Approved

Super Service Award Winner

In business since 1999

Free estimates

Emergency services offered

"Sunday 6/22 my mom's air conditioner was struggling. We called Aireserv who set up for their tech Bryson Bean to come out to mom's house. From the bright greeting smile as he introduced himself to the going over everything he was very professional and patient with all my questions. Highly recommend Aireserv for any of your heating and air conditioning issues. Thank you Bryson for being so you and personable."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+130

9 neighbors recently requested a quote
Recommended by66%of homeowners
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Avatar for Smart Energy Systems, Inc.
Smart Energy Systems, Inc.
4.3(
13
)
Central A/C - Install

Serving Havre De Grace, MD and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

"I talked to several companies about a heating and air conditioning replacement. Smart Energy was more cost effective and offered the same service of larger name brand companies."
Response time8 hrs
Response rate100%
11 neighbors recently requested a quote
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Avatar for Horizon Services, LLC (MDE)
Horizon Services, LLC (MDE)
4.2(
15
)
Central A/C - Service or RepairCentral A/C - InstallCentral Air Cleaner - Install or Replace+4 more

Serving Havre De Grace, MD and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"The worker did not find a leak but gave me helpful information and provided some service to improve my situation."
Tech with Condenser
Tech greeting
Tech with Furnace
Tech checking Condenser in Snow
Horizon Truck in the Fall

+2

3 neighbors recently requested a quote
Recommended by83%of homeowners
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Avatar for Constellation Home
Constellation Home
4.3(
9
)
Central A/C - InstallCentral Air Cleaner - Install or ReplaceDuctless Mini-split A/C - Install or Replace

Serving Havre De Grace, MD and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"Great value for your money."
Constellation Home HVAC Technician
Constellation Home AC installation team
AC installation Day
AC Install
Constellation Home

+2

Response time2 hrs
Response rate91%
1 neighbors recently requested a quote
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FAQs for air conditioning projects in Havre De Grace, 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 Havre De Grace, MD homeowners’ guide to air conditioning services

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

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