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Avatar for HVAC Superior Solutions Inc
HVAC Superior Solutions Inc
5.0(
6
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+47 more

Serving Annapolis Junction, MD and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"I HIGHLY RECOMMEND HVAC Superior Solutions Inc!! They came over to diagnose my AC problem on very short notice. I decided to get a whole new system and they took great care in all the details and worked overtime to get the job completed. I am very satisfied with the new system and with the great customer service."
17 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for GAC Services
GAC Services
4.8(
292
)
Central A/C - Service or RepairCentral A/C - Install

Serving Annapolis Junction, MD and surrounding areas

Approved (Corporate)

In business since 1970

Free estimates

Warranties offered

"

The man I had my previous HVAC service contract with passed away in January and, before he died, he sold his service contracts to GAC.  I learned of this in two letters I received just about the time my spring service was due, one letter from the old company, explaining the death and sale, along with a letter from GAC welcoming me.  Since they had my money I figured I?d give them a try.  I called GAC on a Monday and scheduled my spring maintenance for Thursday.  On Tuesday my A/C made a horrendous noise and I shut it off.  Called GAC to ask if we could move the visit up to Wednesday and they said ?sure?.  Tech arrived on time on Wednesday, explained that my 19 year old system might not have too many years left.  I could spend $1,000 to replace the fan motor and cross my fingers that the condenser didn't go next, or invest in a new Furnace and A/C.  He patiently answered all my questions, we went over the pros and cons, and he didn?t talk down to me (which frequently happens as I am an older woman), under the circumstances it was a wonderful experience.  While he worked up the estimate for a new system in the van I did a computer search of the company and how much a new HVAC system should cost.  I figured I could spend weeks shopping around, but I had travel scheduled for much of April and really didn?t have time for that.  I lucked out, there were several rebates available in April from Washington Gas, PEPCO and Bryant, all of which the tech explained.  I was given two proposals with two different models, I accepted GAC?s proposal on the spot and they had their Quality Assurance man in my house on Thursday taking measurements and answering my questions (he also arrived right on time).  A new Furnace and Air Conditioner were installed on Monday, the furnace passed inspection yesterday, and everything is working well.  The new system is so much quieter than my old system and it appears to be very efficient.  Everyone I worked with at GAC was wonderful, very nice, professional, answered all my questions.  The three man team who installed the system was so upbeat for a Monday morning, I was amazed.  They arrived on time and went right to work like a well oiled machine.  One started outside on the Air Conditioner while the other began tearing out the furnace, the third was floating, helping each of the others, while unloading the trucks.  They had to work in a very tight closet like space but I never heard any grumbling.  They sang along with their music, truly seemed to like each other and they answered my questions as they worked.  They didn?t seem to be bothered by the fact that I checked in on them often.  A very different experience than the one I had 19 years ago when the old system was installed!  They warned me that, because of the area was tight, it could take up to 6 hours to complete, which it did.  They started a little after 8:00 and were done by 4:00. They left the area spotless and took their time walking me through the operation of the new thermostat, how to send in for the rebates and how to call for the county inspection.  All in all, I am happy I stayed with GAC Services and would highly recommend them.

"
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55 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Buric Heating and Air Conditioning
Buric Heating and Air Conditioning
4.7(
20
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallBoiler or Radiator Heating System - Install or Replace+47 more

Serving Annapolis Junction, MD and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"The Buric team did a great job of installing two new HVAC systems in our house at a reasonable price.  This is a family run business, the owners of which take pride in their work and pay attention to detai. The Buric team was also able to add zoning our systems, where other contractors had said this would not be possible.  The work was completed in a timely fashion, and the team cleaned up nicely after itself.  We had two babies in the house, and the team took care not to disrupt their sleep schedules."
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+7

Response time2 hrs
Response rate93%
2 neighbors recently requested a quote
Avatar for No-Frost Air Conditioning & Heating, LLC
No-Frost Air Conditioning & Heating, LLC
4.7(
411
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+21 more

Serving Annapolis Junction, MD and surrounding areas

Approved

In business since 1971

Free estimates

Warranties offered

"One of my AC compressors was not starting correctly every time. If it did start, it would run fine, but on hot days, when it would cycle frequently, (i.e. cool to target temp, stop, temp would heat up, thermostat would send signal to restart, and eventually the compressor would not restart). I don't remember the exact explanation, but I think there's a small fan linked to the capacitor. The fan provides some cooling to the capacitor which is stressed at startup time. Eventually the capacitor burned out because it wasn't getting its appropriate fan/cooling. First, this is a pretty specific problem. I'm fairly technical myself, and my father can fix anything. We had isolated the issue to the capacitor, but could figure out why it had failed. This is a large home and the large capacitor, so it really was a job for a professional -- capacitors offer plenty of opportunities to electrocute yourself pretty severely if your a "do-it-yourselfer." The No-Frost tech diagnosed the problem within a few minutes and explained it in detail. I called my old man to see what he thought, and confirmed that would definitely explain the problem. Second, the appropriate replacement part was an all-in-one capacitor/fan combo part specifically made by the vendor. Because my unit was a larger-than-typical unit AND these guys rushed out pretty much same day (or next morning -- I think it was a Friday going into a 95 degree weekend). The tech didn't have that exact part on his truck. He gave me two options, he had the same size capacitor and fan unit separately, so he could merge those together and get the unit functioning right then and there, or he could order the part and come back some time the following week -- he called the warehouse and they didn't have it in stock (my compressor is large and 10-years old). Given the weather, and everything else, I had him build the setup I needed, took him about 20 minutes to link the fan and capacitor together and the AC unit was humming along again shortly thereafter. I loved that he took the time to explain the problem in detail. He could tell i was "tinkerer," yet he was very politely patient with my ignorance (I had no idea the capacitor required its own cooling). I loved that he gave me the choice on waiting for the vendor's "officially sanctioned" part or just getting the unit working, and that he took the time to explain why this wasn't a risky workaround. I gave him a nice tip and emailed my neighborhood HOA email group the contact details as a reliable, trustworthy and well-priced service provider who will always go the extra mile for the customer. These guys fixed my furnace a year earlier when I nearly burned my house down by not paying attention to my intake... Would and have definitely recommend these folks for any HVAC needs."
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Response time9 hrs
23 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Carroll Mechanical, Inc.
Carroll Mechanical, Inc.
5.0(
20
)
Central A/C - Service or RepairHeat Pump - Repair or ServiceGas Furnace / Forced Air Heating System - Repair+1 more

Serving Annapolis Junction, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"Carroll Mechanical delivered a 10/10 experience, from start to finish. From the first call, the Carroll Mechanical team demonstrated that they were knowledgable, ethical, and customer-first. First, they offered to help me troubleshoot, and they gave me some great tips that allowed me to try and fix the problem myself before they made a service call. As a not-so-handy guy, I realized that I needed the pros, so I requested on-site help. They immediately offered to come over on the day and time most convenient for me, and they spent time with me walking through the pros/cons of different HVAC options. Ultimately, the team explained the pros/cons of different remediation options, offered me an extremely competitive quote, and was transparent all along the way. I moved forward with a system replacement, which they were able to accommodate the same week(!!). The Carroll Mechanical team was timely, detail-oriented, and respectful of my home, and the HVAC system was installed as expected."
Trane Heat Pump
Carrier AC + Furnace
Response time5 hrs
79 neighbors recently requested a quote
Recommended by22%of homeowners
Avatar for Heil Plumbing & Hvac
Heil Plumbing & Hvac
4.9(
252
)
Central A/C - InstallCentral A/C - Service or RepairElectric Furnace / Forced Air Heating System - Install+9 more

Serving Annapolis Junction, MD and surrounding areas

Approved

In business since 1975

Emergency services offered

Warranties offered

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Response time9 hrs
29 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Edwin's Air Conditioning & Heating, LLC
Edwin's Air Conditioning & Heating, LLC
4.9(
28
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - RepairGas Furnace / Forced Air Heating System - Repair+1 more

Serving Annapolis Junction, MD and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Professional, diligent, excellent communications and attention to detail, It's hard to find tradesmen who you can have confidence in, But Edwin has it all. We contracted Edwin's HVAC to replace our 22 year old AC system, he provided a very prompt quotation, with two other company's in the bidding one never responded the other took a week, Work was carried out 3 days after awarding the works, Edwin arrived at the door on time and without delay proceeded to remove the existing system 7hrs later the new system was in, commissioned and handed over carried out in a very professional and excellent workmanship. Ah! I didn't mention price... Edwin's quote was 2/3's that of the competitor and didn't suggest or recommend additional un-necessary work(s) Would I hire Edwin's HVAC again - Yes without a doubt..."
Response time2 hrs
Response rate90%
Recommended by96%of homeowners
Avatar for Regal Duct Cleaning
Regal Duct Cleaning
4.9(
68
)
Air Ducts & Vents - Clean

Serving Annapolis Junction, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Credit card accepted

"Regal did an excellent job on cleaning my air ducts and dryer vent after a remodeling. Very professional and explained everything before starting. I would highly recommend this company."
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+12

Response time7 hrs
2 neighbors recently requested a quote
Recommended by92%of homeowners
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Heating and Air Conditioning questions, answered by experts

Yes, it’s best to turn off an AC unit that’s blowing hot air to prevent system damage and avoid expensive energy bills. If you let the AC continue running, it will put more strain on the condenser coil and compressor. Plus, if the AC is blowing hot air because of a refrigerant leak, it can also lead to a frozen evaporator coil.

If you’re trying to buy a new AC unit, there are a few crucial factors to consider. Look at the cooling capacity, the available warranty, the energy efficiency, and the type of unit. A ductless unit will cost more up front but may be a more viable option if you don’t already have ductwork. Additionally, a unit with better energy efficiency will cost less to run overall, saving you money on your monthly energy bill. 

A common HVAC rule is that for every 500 to 600 square feet of living space, you need 1 ton of heating or cooling capacity. Now that you know this common rule, you also need to know that it isn’t very accurate, and a dedicated pro wouldn’t use it for your home. If you talk to a pro who won’t or can’t perform a proper Manual J calculation, consider hiring someone more thorough.

The cost of annual maintenance depends on the type of HVAC system you have. AC service typically costs an average of $200 but ranges from $100 to $550. If your system needs repairs, the price will vary significantly depending on what needs fixing. However, addressing the issues as they arise can prevent further damage to your unit and keep it operating efficiently for much longer.

The best time of year to purchase or replace an HVAC system, including components like an air conditioner or furnace, is during the off-season—spring and fall. During these periods, HVAC professionals are less busy than in summer and winter, when extreme temperatures create urgent demand. Shopping during the off-season can lead to savings of 10% to 15% on an AC unit and allows you more time to find the best deal and other cost-saving incentives. Typically, air conditioning units go on sale in the fall after demand drops, while furnace prices tend to decrease in the spring.

The Annapolis Junction, 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.