Serving Church Hill, TN & the Tri-Cities Mon–Fri 8–5 · Emergency service available (423) 357-1922
Custom Heating & Air Conditioning logo Heating & Air ConditioningChurch Hill, TN · Since 2001
(423) 357-1922 Request Service
Emergency service available

When the comfort goes out, we go out.

Family owned on East Main Street in Church Hill since 2001, with over a hundred years of combined experience on the trucks. Heating, cooling, refrigeration and commercial mechanical across the Tri-Cities, on every make and model.

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  • Carrier factory-authorized
  • NATE-certified technicians
  • Bonded, insured & licensed
  • 2,700+ customer reviews
Technician inspecting a Carrier condenser beside a house
Custom Heating & Air Conditioning Family ownedChurch Hill, TN · since 2001
Carrier Carrier dealerFactory-authorized
NATE NATE-certifiedtechnicians
BBB BBB accreditedBonded & insured
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There are a lot ofHVAC companiesin the Tri-Cities.

Here is what sets this one apart.

We fabricate our own sheet metal, so your ductwork is made to fit your building rather than the other way around. We are a factory-authorized Carrier dealer with NATE-certified technicians, handling residential and commercial work under one roof.

Our story Credentials
Custom Heating & Air Conditioning van outside the Church Hill shop
The shop on East Main Street in Church Hill.
What we do

One contractor for the whole building

Residential comfort, commercial mechanical and refrigeration — same crew, same phone number, with our own metal shop behind them.

Technician repairing an air conditioning unitCooling

Air Conditioning

Repair, installation and spring maintenance on every brand of AC and heat pump.

Learn more
Technician servicing a heating systemHeating

Heating

Gas, electric, heat pump and dual-fuel — diagnosed properly, fixed once.

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Wall-mounted air handler in a modern living roomAir quality

Indoor Air Quality

Filtration, humidity control, UV and ventilation for homes with persistent comfort problems.

Learn more
Technician working on a rooftop HVAC unitCommercial

Commercial HVAC

Rooftop units, splits and light commercial systems, maintained on a schedule.

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Industrial refrigeration condensing unitsRefrigeration

Refrigeration

Walk-in coolers, freezers and reach-ins, with priority response when stock is at risk.

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Spiral ductwork installationFabrication

Sheet Metal & Duct

Ductwork, plenums and transitions, fabricated to fit in our own shop.

Learn more
See every service
2001Serving since
100+Years combined experience
2,712Customer reviews
30+Towns covered

We make our ownsheet metal.

Most HVAC contractors order their fittings from a catalog and make the house live with them. We cut ours in the shop on East Main Street.

Ductwork fabricated in the Custom Heating & Air Conditioning metal shop
Ductwork made for the building it is going into. The same crew that fabricates it is the crew that hangs it — which is exactly why the joints line up.
01

The duct is made for your building

Not the nearest stock fitting with flex duct making up the difference. Odd angles, tight crawlspaces and old houses are exactly where a fabrication shop earns its keep.

02

A transition is an afternoon, not a three-week order

A new unit almost never matches the old opening. Because the shop is ours, the transition gets made while the job is still open rather than holding everything up.

03

The people who make it are the people who hang it

They have a direct interest in getting the dimensions right the first time, because they are the ones who then have to make it all line up.

04

Fully licensed, bonded and insured

Ask for proof before anyone works on your building — of us or of anyone else. You should expect that of any contractor.

Sheet metal fabrication Free estimate
HVAC installation by Custom Heating & Air Conditioning
Rooftop equipment installed on a new build
Ductwork fabricated and fitted by our own crew
Finished system installation in the Tri-Cities

Real jobs,real crews.

Work completed by our own crews, in homes and buildings within about half an hour of the shop — changeouts, new-construction rough-in, rooftop sets and the ductwork no one ever sees once the ceiling goes back up.

If you want to see more of them, or talk to someone whose system we installed, ask. We keep a long list of references and we are happy to hand it over.

Full photo gallery

How wework.

The commitments we hold ourselves to on every job, residential and commercial.

01

We recommend the repair when the repair is right

If a $180 capacitor will put the system back in service, that is what we will tell you. Either way you get the repair-versus-replace figures in writing before you decide.

02

We assess the ductwork before quoting equipment

A high-efficiency unit on a leaking or undersized duct system will not deliver its rated performance. The distribution system is part of the quote, not an afterthought.

03

We size from a load calculation, not from the old nameplate

Matching an incorrectly sized original repeats the error at your expense. Oversizing is the most common fault in residential HVAC, and it is why houses run cold and humid.

04

We remove a cracked heat exchanger from service

Without exception. If we find one, the system is shut down and we will explain exactly why, whatever that means for the job.

05

We commission every installation

Airflow measured, charge verified, combustion tested, controls configured and demonstrated to you before we leave, with the readings recorded.

The people who show up

This is everybody.

The whole company, photographed together at the end of the year. One of these people is who you get when you call.

The team at Custom Heating & Air Conditioning outside their Church Hill shop
This is everybody. Over a hundred years of combined experience standing in one photograph.
Reviews

2,712 reviews, and counting

The compliment we hear most often is not about equipment. It is about the people: friendly, professional, and at the door when we said we would be.

2,712customer reviews

  • 1,642 with a written comment
  • 564 call our people friendly
What customers mention most

  • “I had to call the day after Christmas because our heat pump just stopped working. Todd came out had everything fixed in about 30 minutes and it was so affordable. This company is honest and the techs they send out are always so nice. I recommend them to anyone I know who needs HVAC work done.”

    Ashley M.Technician Todd S. · Dec 2025

  • “The crew that installed the system were very professional and knowledgeable. Great work. Love the Carrier Infinity. Oh, the quote was very much right on and a fair price!”

    DennisFeb 2025

  • “Aaron is extremely professional and courteous…a blessing to have come by twice a year to perform our scheduled maintenance.”

    Richard & Deborah H.Technician Aaron H. · Sep 2025

  • “Nick was very nice. He helped fix our heat pump and made sure we were ready for summer the same day we called for help. Even got a new thermostat and showed us how to use. He was very quick, efficient, and great price.”

    Jason J.Apr 2026

  • “Been with Custom Heat and Air as a customer now for over 20 years. I won’t go to anyone else. Last project was a mini split system for my upstairs bedrooms. Install looks great! 1st I have ever walked upstairs and it be as cool if not cooler than main level.”

    Stan L.Installation crew · Jul 2024

  • “Chris was very knowledgeable. He was respectful and courteous. He went to work as soon as he arrived and didn't stop until my air was working again.
    I was charged the price I was quoted and I am so happy with the work done.”

    Teresa W.Sep 2026

  • “Always pleased to have Duane Hayes service our HVAC. He has provided service for our families for over 40 years! We are always confident of his services and appreciate his expertise and loyalty to customers. Thank you.”

    David & Jackie M.Technician Duane H. · Jun 2025

  • “Our AC wasn't working and they came the same day I called. 100degrees outside and fixed in less than an hour. Gotta love the fast professional service.. 5 stars isn't enough”

    Jon M.Technician Anthony S. · Jul 2026

  • “HVAC Tech (Robert) did an exceptional job. He checked the refrigerant, the electrical components and the condensation pump. He made sure everything was cleaned up and nothing left dirty. Very pleased and will use them again.”

    Chris P.Sep 2026

  • “The install crew arrived on time,They worked hard all day, The unit was installed same day,the crew cleaned up very very well..Great job!! Highly recommend Custom Heating & Air”

    Kenneth & Tasha A.Technician Jacob H. · Jan 2026

  • “Robert was great! Had it fixed in about half an hour. Didn't even get cold in the house before he had the heat going again! I wouldn't trust anybody else with my hvac, I've used Custom since I moved here!”

    Pam M.Feb 2026

  • “Anthony replaced a coil and condenser in our heat pump. He’s very knowledgeable and explained and showed us where the issues were. I will use them again.”

    Jerry G.Technician Anthony S. · Jul 2025

  • “Honest company!
    Excellent technicians who can perform the work and explain the issues and pitfalls to the customer!
    Wonderful experience”

    Jeremy F.Feb 2026

  • “Arrived as scheduled, started in with four man crew, 9 am and left at 12:30 pm! Everything in order, installed new 4 ton split to existing duct work, was professional as always! Thank you much!”

    Alice N.Technician Mike G. · Jun 2025

  • “Called this afternoon after our A/C stopped blowing cold air and Todd was at our door in about an hour. 15 minutes later the air conditioner was fixed. Thank you so much.”

    Andy O.Technician Todd S. · Jul 2024
Read all 2,712 reviews

No heat or no cooling right now? Emergency service is available.

Call (423) 357-1922

$79 seasonal tune-up

Our fall special, the same one on the card that went out to existing customers. Covers one heating or cooling system, and a $50 rebate is available on qualifying tune-ups. There is $10 off any service call on the offers page too.

See current offers

Financing that fits the month

Credit For Comfort applications take minutes online and consider FICO scores down to 500. Wells Fargo Bank, N.A. options are available with approved credit.

Financing options
Coverage

Where our trucks go

From our shop on East Main Street in Church Hill, roughly an hour in every direction: the Tri-Cities, upper East Tennessee and Southwest Virginia.

  • 30+towns
  • 12counties
  • 2states
VIRGINIATENNESSEENORTH CAROLINAKENTUCKYHAWKINSSULLIVANWASHINGTONCARTERGREENEUNICOIHAMBLENGRAINGERSCOTTWISELEEWASHINGTON81812626Bulls GapEidsonBluff CityPiney FlatsLimestoneHamptonGreenevilleChuckeyMosheimMorristownBean StationGate CityWeber CityDuffieldHiltonsAbingdonBig Stone GapPennington GapSurgoinsvilleRogersvilleKingsportBristolBlountvilleJohnson CityJonesboroughElizabethtonErwinChurch HillOUR SHOP
  • Our shop
  • Counties we serve
  • Town with its own page
  • Also on the schedule

Towns with a page of their own

Miles are straight-line from the shop. Also on the schedule: Greeneville, Morristown, Abingdon, Gate City, Big Stone Gap and 13 more towns.

See the full service area Check your address
Common questions

Before you call

Do you charge for a service call?

Yes — there is a diagnostic fee, and we tell you what it is on the phone before we come out. It buys a technician’s time to find the actual fault instead of guessing at it. Estimates on new equipment and on commercial installations are free; estimates are not available for diagnostics or repairs.

How fast can you get here when the heat or the AC quits?

For most of our area we aim for same-day or next-day. Church Hill, Mount Carmel and Surgoinsville are minutes from the shop, and Kingsport is a short run down 11W. We keep emergency availability outside business hours — call (423) 357-1922 and you get a person, not a queue.

Do you only work on Carrier equipment?

No. We are a factory-authorized Carrier dealer, so that is what we recommend and stock parts for. But our technicians service, repair and maintain all makes and models — gas, electric, heat pump, geothermal and ductless.

Should I repair my system or replace it?

Rule of thumb: if the repair costs more than about a third of a new system and the unit is past twelve years or so, replacement usually wins once running costs are counted. Under that, repair. We will put both numbers in front of you and let you pick.

Do you handle commercial work?

A large part of what we do. Rooftop units, split systems, walk-in coolers and freezers, refrigeration, custom sheet metal and new-construction rough-in. We run our own metal shop, so the duct and transitions get made here rather than waiting on a factory order.

Is financing available?

Yes, three routes. Credit For Comfort takes applications online in minutes and considers FICO scores down to 500; Eastman Credit Union is the local option and you can apply to them online; and Wells Fargo Bank, N.A. offers special terms with approved credit. Compare all three and apply on the financing page.

Talk to someone who works on these systems

Monday to Friday, 8:00 am to 5:00 pm, with emergency service outside those hours. Your call is answered by our own office in Church Hill.

(423) 357-1922
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