Due to the lack of resources in the available labor situation, we are having to remove our 24-hour service availability to customers. Once we are able to restate 24-hour service we will change our hours of service back to 24-hour emergency service. We apologize for the inconvenience at this time, but look forward to continually servicing all of our clients with 24-hour service in the near future. Sincerely, Michele Thomas
Call for reliable Furnace replacement in Knoxville TN.

Your Trusted Heating and AC Contractor
in Knoxville and the Surrounding Areas for Over 60 Years

Your Trusted Heating and AC Contractor in Knoxville and the Surrounding Areas for Over 60 Years

See what makes A-1 Certified Service, Inc. your number one choice for  repair in Oak Ridge TN.
Knoxville, Tennessee

Your Trusted Heating and AC Contractor
in Knoxville and the Surrounding Areas for Over 60 Years

Your Trusted Heating and AC Contractor in Knoxville and the Surrounding Areas for Over 60 Years

Your Knoxville Heating, Insulation, and AC Experts

A-1 Certified Service, Inc. has been proudly serving the HVAC needs of the Knoxville area since 2000. And, we owe our success to the loyalty of customers like you. By putting you first, we've gained a reputation as the go-to company for furnace repair in Knoxville. In our 21 years of working on HVAC equipment, we've come to understand the quirks of almost every furnace brand. This allows us to quickly diagnose your problem without having to schedule return visit after return visit. If there's ever a situation where our services do not meet your standards, we stand by our work with a comprehensive satisfaction guarantee. With all that considered, why wouldn't you call us for your furnace repair or replacement?
Why Choose Us?
Your Home...The place you share with those you love most, your haven in a busy world. A place whose comfort we're here to protect. From winter's chill through the dog days of summer, our primary goal at A-1 Certified Service, Inc. is to keep your home comfortable for you and your family.

But, that's just the beginning. We also offer you peace of mind, ensuring your equipment operates safely. We help you save money on your fuel bills. And we help deliver relief to those with allergies and many others concerned with the quality of the air they breathe.
Go Ahead, Explore...
This site is specifically designed to help you become an informed consumer when it comes to your home's heating and AC systems. Go ahead, explore. The pull-down menus make it easy. Not only will you learn how these systems work, but also how to shop smart and protect your investment.

If you're not sure where to find help with a specific question, try our site's search engine. And, don’t miss the 'Answers and Information' section on our menu to learn about your home's HVAC systems and simple things you can do to save money and get the most from them.
$20.00 Off
As a Thank You for Visiting our Website
$20.00 Off
As a Thank You for visiting Our Website
This Coupon entitles a Homeowner to a $20.00 Discount off any heating or air conditioning repair service performed by A-1 Certified Service, Inc. at their residence. Only one coupon per address accepted.
A-1 Certified Service, Inc. has certified technicians to take care of your Furnace installation near Farragut TN.
Code# CPNSTH - Heating & AC
Code# CPNSTP - Plumbing
Good Through:
October 2021
Printable Version
Free Diagnostics Charge
Free $79 Diagnostics Charge
Free Diagnostics Charge
Free $79 Diagnostics Charge with the purchase of a NEW Club HVAC or Plumbing Maintenance program.
This Coupon entitles a Homeowner to a Free $79 Diagnostics Charge with the purchase of a NEW Club HVAC Maintenance program by A-1 Certified Service, Inc. at their residence. Only one coupon per address accepted.
A-1 Certified Service, Inc. has certified technicians to take care of your Furnace installation near Farragut TN.
Good Through:
October 2021
Printable Version
Low on money? Get financing on your Furnace repair with A-1 Certified Service, Inc.
We offer financing options through GreenSky Financial. Click below to apply for financing on your HVAC or plumbing repair in Knoxville today.
Financing
Low on money? Get financing on your Furnace repair with A-1 Certified Service, Inc.
We offer financing options through GreenSky Financial. Click below to apply for financing on your HVAC or plumbing repair in Knoxville today.
Financing
A-1 Certified Service, Inc. is a full-service insulation, geothermal, water heater, and HVAC company serving the Knoxville area. When it comes to dispatching an HVAC technician for your furnace, AC, heat pump, or mini-split repair or replacement, we only send the best. You can also rest easy with us if you have a water heater, sump pump, well pump, or fireplace problem. We proudly service Knoxville, Oak Ridge, Clinton, Powell, Louisville, Heiskell, Lenoir City, Oliver Springs, Alcoa, Friendsville, Norris, Briceville, Rockford, Rocky Top, Coalfield, Maryville, Andersonville, Petros, Corryton, Greenback, Loudon, Harriman, Jacksboro, Caryville, Kingston, Seymour, Mascot, Walland, Strawberry Plains, and the surrounding area. And, at A-1 Certified Service, Inc., know we always put you first. So, when you ask Google for a “good heating or AC company near me” you know you’ve come to the right place. To get a quote on your furnace or repair, call (865) 691-5088. A-1 Certified Service, Inc. services all furnace, AC, and water heater brands including Carrier, Bryant, Payne, Trane, Lennox, Rheem, Ruud, Amana, Daikin, Mitsubishi, Fujitsu, Frigidaire, Gibson, Goodman, Lochinvar, AO Smith, Kohler, American Standard, GeoExcel, General, Aprilaire, Honeywell, White Rodgers, Dynamic, and Skuttle.
For Furnace in Knoxville TN, we accept all major credit cards.
 
We accept cash for Heating repair service provided in Oak Ridge TN.
We accept check for  repair service provided in Farragut TN.
 
Call us today  •  (865) 691-5088  •  or  •  Fill Out Our Online Form
We accept cash for Heating repair service provided in Oak Ridge TN.
For Furnace in Knoxville TN, we accept most major credit cards.
We accept check for  repair service provided in Farragut TN.
24 Hour Emergency Service Available
A-1 Certified Service, Inc. works with Trane Furnace products in Oak Ridge TN.
Contact Information
 
2511 Byington Solway Rd.
Knoxville, TN 37931
(865) 691-5088
Monday - Friday  |  8:00am - 4:30pm
Saturday and Sunday  |  Closed
Best HVAC & Furnace Repair in Knoxville
2511 Byington Solway Rd.
Knoxville, TN 37931
(865) 691-5088
M-F  |  8:00am - 4:30pm
24/7 Emergency Service Available
 
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