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A One Heating, Air Conditioning, and Plumbing LLC

Founded 1991 • With Angi since February 2006


(36) Verified Reviews

Business Highlights

Emergency Services OfferedEmergency Services Offered
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COVID-19 Update
We are actively performing full services. We are taking additional precautions to protect our customers.

Health & Safety Measures

We will wear masks and gloves when we visit your home
We offer estimates and quotes using video calling
We accept remote payment
All statements concerning COVID‑19 business operations and essential services are informational only, and are self‑reported and not verified by Angi.


A One Heating Air Conditioning and Plumbing LLC is a family owned and operated business with over 20 years of experience specializing in the design, installation, service, and repair of heating and air conditioning systems for residential customers. We are a full service HVAC company, up to date on the latest trends and advances in the industry. We are an established and reliable company, with the unique ability to handle all of your mechanical needs with one call. You can count on us to provide you with solutions that fit your family's unique needs. We've installed many systems in the area and we've earned a reputation for doing the job right the first time. We train each employee to see your job through from start to finish, ensuring the system performs up to your expectations....

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Verified Reviews

A few reviews for this pro...


Iheukwumere O.

Service was performed on 2 units . They informed me during the service that the piping on one of the units that had been installed less than a year earlier was not to code and charged $450 to replace it. I asked them if they would rescind the diagnostic charge for that unit and they refused as it wasn't their policy. Fair enough but for that reason I will not use them again.

Description of Work
Servicing of AC.

Category appliance repair,heating & air conditioning/hvac



Charles D.

They came when stated did a good job, efficient, professional

Description of Work
AC/Heat tune up

Category appliance repair,heating & air conditioning/hvac



Catherine P.

Our furnace had stopped heating and was just blowing cold air. The technician came out to repair it but found that the furnace parts were old. He said that he could try to find the parts (and even called his supervisor to check), or that the furnace could be replaced. The quote for the new furnace was very reasonable, and they were able to install it within a few days, so we went with that option. The installers were very professional and friendly, answered all of our questions, and took out the old furnace and surrounding duct work with no problems or mess.

Description of Work
Needed new furnace

Category heating & air conditioning/hvac



Chanda S.

Overall, it went well, would utilize again

Description of Work
Air Conditioner Repair

Category heating & air conditioning/hvac



elaine W.

Just received my new AC/Heating system installed by A-One. I am very happy with the install and the work that was done. This crew of men worked very hard and went the extra mile to get this job done. My blower unit had to be installed in the attic and the old units removed from the attic. This was hard work and all in a very hot attic. Nevertheless they pushed through and delivered. Thank you A-One for doing a wonderful job.

Description of Work
Install new AC/Heating system

Category heating & air conditioning/hvac



Christopher J.

We changed from our previous company to A One three years ago, because of the dishonesty and fraudulent business practices of the previous company. We've had nothing but top-notch service from A One, from every employee up to and including Mr. Simpson. They're very responsive to heating or a/c emergencies, they price their service contracts and repairs very fairly (and on the low end, compared to their competition), explain thoroughly the available options, and do it all in a personable and professional way. Both Mr. Simpson and his son have walked me through quick system checks over the phone, that have gotten my system back up and running immediately, rather than waiting for a service call. All in all, they're a first rate company that really does provide "A-one" quality service.

Description of Work
provide heating and a/c service and repair for two homes, totalling three a/c units.

Category heating & air conditioning/hvac



Derrick C.

The owner sent out 3 techs to remove my heating and air conditioning unit...they were prompt and professional....will definitely use this company again.

Description of Work
Replaced heating and air conditioning

Category heating & air conditioning/hvac

Service Provider Response

We thank Mr [Member Name Removed] for his kind words and will try to continue to provide the kind of service he expect


Jahmal W.

They were pleasant and professional throughout the whole process. Would definitely recommend!

Description of Work
I needed an annual servicing of my HVAC system. The system 5 years old and I’d never had the air conditioner serviced. Leerie completed the inspection and found a wiring hazard. Jamaal came out a day later to fix the issue and do a chemical cleaning of my coils.

Category heating & air conditioning/hvac



Okalahoma A.

Very well. These guys are great! They even offer financing. The bank even called, after the work was completed , to make sure we were happy with everything!

Description of Work
Installed central air conditioning & heating system.

Category heating & air conditioning/hvac



Sandra B.

The trouble call went very well. The technician arrived on time and did a thorough check on the furnace and detected the problem.

Description of Work
I purchased a Trane Furnace with an Aprilaire humidifier on January 5, 2013. They have done annual service checks for $89.00 per visit. They last came on October 26, 2017 because the furnace was not working properly. The thermostat was defective and needed to be replaced. The thermostat was replaced by Pepco Electric Company who was issuing new, upgraded thermostats to their customers.

Category heating & air conditioning/hvac

    Services Offered

    Service/Repair/Installation: Air Conditioning, Gas Furnaces, Heat Pumps, Gas Boilers, SpacePak High Velocity System, Ductless Mini Split Systems, Water Heaters, Gas Fireplaces, Humidifiers, Oil Furnace Conversions, HVAC Inspections, Service Contracts.

    Services Not Offered

    Commercial Equipment

    General Information
    Free Estimates
    Eco-Friendly Accreditations
    Payment Options
    Visa, MasterCard, American Express, Discover, Check, PayPal, Financing
    Senior Discount
    Emergency Service