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Find Central a/c service or repairers in Knoxville

Avatar for Presidential Heating & Air Conditioning
Presidential Heating & Air Conditioning
4.7(
415
)

Serving Knoxville, MD and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1982

Free estimates

Emergency services offered

"Needing a new HVAC is never fun. I had 4 companies come out to do estimates because of the cost involved. Presidential knew what they were talking about, did't try to upsell items I didn't want or need, and handled themselves like complete pros. The system was replaced in a day. They explained everything thoroughly. They cleaned up beautifully. The AC is working great. In my opinion, they are A++++"
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+6

35 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for McCrea Heating & Air Conditioning Services of PA
McCrea Heating & Air Conditioning Services of PA
4.8(
286
)

Serving Knoxville, MD and surrounding areas

Approved

In business since 1936

Free estimates

Emergency services offered

"Called McCrea Friday morning to schedule for a service technician to come out that afternoon. Got a call around noontime from service technician Dwayne Myers to let me know he was on the way and would be there shortly. When Dwayne arrived he introduced himself and we then discussed the problem, after which he went into diagnostic mode explaining along the way everything that he was doing in checking for the problem. Once diagnosed he explained what was needed for repair and again informed me what he was doing in facilitating the repair. After the repairs were completed he did a thorough inspection of my system to ensure there were no other issues and it was blowing cold and working like new."
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5 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Relax HVAC, Inc.
Relax HVAC, Inc.
5.0(
28
)

Serving Knoxville, MD and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Although the AC unit was working, it was leaking water. I had another company come in and tell me that the main drain pan was cracked and that it would cost $2880 to repair or I could buy a new unit costing over $8500 dollars. I called Relax Air for a second opinion. Kamal and his crew came out the next day and confirmed that the drain pan was cracked and leaking. His repair cost? $400. I also had him do two other HVAC related jobs while he was there (replacing AC disconnect box and installing a water float switch]. They had everything done in and hour and a half. Total cost: $675. Kamal is fast, efficient and most of all honest. I would recommend him to anyone."
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+12

Response time1 day
10 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for TriState Home Services
TriState Home Services
4.7(
181
)

Serving Knoxville, MD and surrounding areas

Approved (Corporate)

In business since 1949

Free estimates

Emergency services offered

"They came and inspected the sump pump. They recommended for it to be replaced. I was okay with it so they replaced it. They completed within half an hour. We then discussed the bill. They agreed to take off $50 because they have an Angie's List coupon that offers $50 off. There was also a coupon for $250 off a system installation for Angie's List members. I told them of this and they said it would only apply for HVAC units and I said to them that they are more than HVAC company, they provide more services than HVAC. They did not specify that its only for HVAC. The technician agreed and said that they're going to have to change that within our website. This was extremely misleading and felt like a bait and switch."
Furnace Tune Up
Floor Heating System
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+2

Response time1 day
16 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for GAC Services
GAC Services
4.9(
273
)

Serving Knoxville, MD and surrounding areas

Approved (Corporate)

In business since 1970

Free estimates

Warranties offered

"I’m back again to write another stellar review for GAC. Last year they replaced our HVAC system; this year we circled back and had them install a home generator. This was a long and drawn out process due to the various approvals needed from Montgomery County as well as coordination with Washington Gas (which ended up not just being a simple sign off but necessitating an additional, expensive upgrade to the gas line from the street to our home). Nevertheless, GAC did a fantastic job shepherding this process over the 6+ months of waiting on stakeholders, and they were also maximally accommodating to our family’s significant constraints on time and availability (due to health concerns related to a medically fragile family member). A special kudos to Sandy M, GAC’s master electrician, who took it on personally to ensure we were taken care of all throughout this process, going above and beyond with phone calls, text messages, personal visits, etc. on behalf of my family, I want to thank GAC and am giving top marks across the board for this effort which was complex , lengthy, and ultimately successful."
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66 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for JDL HVAC & Plumbing Services
JDL HVAC & Plumbing Services
4.6(
109
)

Serving Knoxville, MD and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"It can be difficult to find skilled home repair professionals that are also considerate and accommodating. This is the second great experience that I've had with JDL HVAC Services and I plan to keep using them for my HVAC needs."
Navien Tankless 2023
Navien Tankless 2023
Navien Tankless 2023
Navien Tankless 2023
18 SEER Infinity Heat Pump

+73

Response time5 hrs
27 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Holtzople Heating, Air Conditioning, & Electrical Services
Holtzople Heating, Air Conditioning, & Electrical Services
4.9(
180
)

Serving Knoxville, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Emergency services offered

"This was our third maintenance under the Comfort Club plan, and the service was again excellent. Jacob was terrific -- friendly and professional. The service techs always arrive well within the appointment window and call when they're on the way. The Comfort Club has been a worry-free way to keep our system serviced year-round."
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+47

Response time12 hrs
23 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Petro Home Services
Petro Home Services
4.6(
93
)

Serving Knoxville, MD and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

"It went very well. They did a good job. The cost was over $400. I don't know whether or not that's too high or not. I seldom have plumbers in so I can't say the cost was high, although I was surprised it was $400, but that could be the going rate. He seemed very agreeable and very happy. I needed something and he was happy to get it. He was very knowledgeable and helpful in that regard. As for the quality of their service, so far so good. Everything went okay. It stopped leaking."
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Response time6 days
17 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for SPECS Heating & Cooling
SPECS Heating & Cooling
4.8(
16
)

Serving Knoxville, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Credit card accepted

"Superb service as the technician was personable, efficient and knowledgeable. He ordered the part, drove to pick it out and returned to complete the replacement and cleaning. I was thoroughly impressed and appreciative. "
Response time5 hrs
8 neighbors recently requested a quote
Recommended by50%of homeowners
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FAQs for central a/c service or repair projects in Knoxville, MD

A condenser fan motor is a crucial part of your air conditioner that prevents the compressor from overheating. It pulls heat from your AC unit to cool the refrigerant moving through the condenser coils. This allows your system to blow cool air and keeps everything running smoothly.

The most common causes of AC fan motor failure include loss of lubricant in the system due to overheating and a rusted or leaking run capacitor. Poor lubrication can also cause failure in the belt drive, which may impact the AC fan motor. Weather and electrical components can also affect your AC. For example, a storm could send water into your motor windings and damage the internal components.

Air conditioner fan motors last about 12 years on average, though they can last longer if maintained well. This includes keeping them clean and cooled as needed with annual air conditioner checkups. Routine maintenance is essential to catch AC fan issues early. An HVAC inspection can cost between $70 and $500, while AC cleaning services may range from $100 to $400.

A broken AC fan motor may need replacement because this part usually can’t be repaired. Several things indicate it’s time to replace your AC fan motor, including buzzing noises, a constantly running fan, unusually high energy bills, or an aging system. If you notice these signs, call an HVAC pro for help before the faulty motor starts to strain other parts of the AC system.

There are clear warning signs of a bad AC fan motor, including unusual interruptions in the fan operation. The motor might be malfunctioning if you hear weird noises like grinding or rattling or if the fan continues to spin when the unit is off. These indicators compromise your AC’s cooling performance and increase your energy costs. Addressing these issues immediately by contacting a trusted HVAC professional prevents further damage and safeguards your HVAC's efficiency.

Replacing your AC fan motor takes a professional one to four hours. The technician will start by assessing your system and safely removing the damaged motor. If a new part needs to be ordered, it might take a few days. Once the part is available, your pro will install it properly and make sure your system is running smoothly.

The Knoxville, MD homeowners’ guide to central a/c service or repairs

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

  • Detail of a HVAC system outside a brick house

    The cost of replacing an AC unit fan motor depends on warranties, labor, season, and more. This cost guide covers everything you need to know about this HVAC part.

  • A boy changing thermostat’s temperature using a smartphone

    Budget for AC coil cleaning costs based on factors such as cleaning frequency, coil type, cleaning method, accessibility, ongoing maintenance, and more.

  • home air conditioner being recharged with freon

    Need an AC Recharge? Here’s how much it costs, what factors affect cost, and what to expect.

  • House humidifier on a return duct

    Wondering who installs whole-house humidifiers? Hire a licensed HVAC technician. Learn what they do, other pro options, and how to hire confidently