Business Details
About
HVAC ContractorAir Conditioning ContractorHeating Contractor
John H. Coleman Co. provides cooling, heating, ductless HVAC, water heater, and commercial HVAC services along with electrical and plumbing services to the Knoxville, TN area.
Location
Hours
Reviews
4.9
925 reviews
5 stars
868
4 stars
33
3 stars6
2 stars5
1 star13
What are people saying?
AI-generated from recent customer reviews
Professionalism
Technicians are consistently described as prompt, courteous, and knowledgeable, providing excellent customer service.
Customer Satisfaction
Many customers express high levels of satisfaction with the service received, often recommending the company to others.
Communication
The company is noted for its effective communication regarding appointments, service details, and follow-ups.
Scheduling Issues
Some customers reported difficulties with scheduling and delays in service appointments.
Quality of Work
While most reviews praise the quality of work, a few customers mentioned concerns about incomplete jobs and the need for follow-up visits.
- TWTony Woodward1 day ago5.0I have an annual contract with John Coleman company for maintaining my HVAC system. I just had my winter inspection and the inspector found that the capacitor for the motor that runs the fan was providing low voltage. This is important as it could cause that motor to be very slow to start and fail prematurely. I really appreciate that he'd found that and I did have him replace it as he did have it in stock on his truck. The extra time he took to check that capacitor was most appreciated. I found Coleman to be a very good company. They do both a spring and fall inspection and have guided me to maintaining my system with no serious problems.
- JJJ Austin Jennings4 days ago5.0Such a great company. We always feel in good hands with John H. Coleman. Their customer care program is a great value and helps with peace of mind. Justin came to look at our furnace today and assess an issue we were having. Not only was he friendly and professional but he showed me exactly what he was doing and explained the problem that he found.
- KWKreis Wetherington6 days ago5.0My technician Justin Weld did a great job on my service today. He spotted a couple of HVAC components that were not performing to manufacture specs and replaced them under warranty.
- GJGreyson JonesDec 18, 20255.0Had John come out for an initial diagnosis of the electrical problem, and then Nathan for the followup appointment. Both were prompt and professional, and didn’t want to sell me on services I didn’t need. Would absolutely recommend to anyone in the Knoxville area
- DPDavid PetersonDec 10, 20251.0Robert came out to my mothers house June 20th 2025 to inspect a Navien tankless hot water heater that was leaking enough water to keep a 5’ area wet in her garage. He came out and told her this was normal condensation. And supposedly checked with another technician. (My mom is single and believes professionals) I get back from working abroad 5 days ago and she tells me about the water heater”condensation “ I open the unit up, identify the leak in under a minute. Call Navien, get the entire unit replaced and installed under warranty.
Frequently Asked Questions About John H Coleman Co
Will my pipes freeze in one night?
Yes, pipes can freeze overnight. Freezing can occur in as little as six to eight hours, especially if the outside temperature drops below 32 degrees Fahrenheit and your pipes aren't properly insulated. For more information or assistance with water heaters in the Knoxville area, please don't hesitate to contact us.
How do you unclog a toilet when the water is high?
If your toilet bowl is full, first remove some water to prevent overflow. Then, pour one cup each of baking soda and vinegar down the drain. The resulting chemical reaction should help loosen the clog. For severe blockages, we recommend contacting us for professional toilet and drain cleaning services in Knoxville.
Why is the water in my toilet running?
Continuous toilet running is often caused by a faulty flapper, incorrect chain length between the flush lever and flapper, or a misaligned float. These issues can be tricky to fix without proper training. For expert assistance with toilets and water heaters in Knoxville, please give us a call.
Why does my shower faucet keep dripping?
A dripping shower faucet typically indicates a problem with the faucet or valve. Common causes include worn inner seals, hard water deposits causing clogs or corrosion, and deteriorated O-rings or gaskets. For a thorough assessment and professional shower drain cleaning, we encourage you to contact us.
How do you know if your sewer is clogged?
Signs of a clogged sewer include multiple backed-up drains, drainage in a sewer clean-out, visible sewage in floor drains, or water backing up in your shower when flushing the toilet. These issues can significantly disrupt your home life. If you notice any of these signs, please contact us promptly for reliable plumbing and electrical services in Knoxville.
What's the difference between drain clearing and drain cleaning?
Drain clearing focuses on removing large debris causing blockages, such as hair clumps or hard deposits. Drain cleaning involves using pressurized water to flush out any remaining debris after clearing. For professional drain cleaning services in Knoxville, we invite you to reach out to us.
How do I stop my house lights from flickering?
To address flickering lights, ensure bulbs are securely tightened in their fixtures and lamp plugs are firmly inserted into outlets. If you're using a non-dimmable bulb with a dimmer switch, this could be the cause. For more information or to request service from experienced Knoxville electricians, please contact us.
What causes a circuit breaker to trip?
Circuit breakers typically trip when there's an electrical fault that could damage the circuit. This may be due to excess current, a power surge, or a faulty component. If you need assistance with your breaker or information about generators in Knoxville, we're here to help.
How do you fix a breaker that keeps tripping?
Circuit overload is a common cause of tripping breakers. As a temporary solution, try using fewer appliances simultaneously on that circuit. For a long-term fix, consider having an electrician update your home's wiring and add more circuits. Our team of skilled Knoxville electricians is ready to assist you with this task.
What wiring do you need for a ceiling fan?
For ceiling fan wiring, copper or green wire serves as the ground wire to prevent power surges. If you see blue and black wires from the household circuit, there should be two wall switches. A red wire from the ceiling indicates a connection to the wall switch. For more detailed information about wiring, please contact our experienced Knoxville electricians.
What services does John H Coleman Co offer in Knoxville?
John H Coleman Co provides cooling, heating, ductless HVAC, water heater, commercial HVAC, electrical, and plumbing services in Knoxville, TN.
What brands does John H Coleman Co work with?
They work with brands such as Goodman, Carrier, Trane, Janitrol, Rheem, Amana, Puron, York, Mitsubishi, American Standard, and Generac.
What are the typical business hours of John H Coleman Co?
They are open from 7:00 AM to 8:00 PM Monday through Saturday and are closed on Sundays. They also offer 24-hour emergency service.
What payment options are accepted at John H Coleman Co?
They accept American Express, Cash, Check, Discover, Mastercard, and Visa.
Does John H Coleman Co provide emergency HVAC or plumbing services?
Yes, they provide 24-hour emergency services for HVAC, electrical, and plumbing needs in Knoxville.
Where is John H Coleman Co located?
They are located at 805 Corridor Park BLVD, Knoxville, TN 37932, USA.
How can customers contact John H Coleman Co?
Customers can call their main phone at +1 865-350-5119 or local phone at +1 865-525-5111, or email info@johnhcolemanco.com.
What are some nearby places to John H Coleman Co in Knoxville that customers might visit?
Nearby places include PetNet Solutions (appliance manufacturer), Integrity Laboratories (laboratory testing and health services), and Extra Space Storage (self storage facility). Customers may visit these locations before or after service appointments.
How can nearby places like Priority OnDemand help customers visiting John H Coleman Co?
Priority OnDemand provides ambulance and EMS transportation services nearby, which could be useful for urgent medical needs while visiting the area.
Are there financial services near John H Coleman Co to assist customers?
Yes, financial service providers like Your Back Office Accounting, CIC Services LLC insurance agency, and Patriot Investment Management are nearby to support customer financial needs.