A technician kneeling at an outdoor heat pump beside a white farmhouse

HVAC Repair, Installation & Air Quality · Dover, Kent County and the Eastern Shore

The doctor is in.
House calls
since 1989.

A certified technician at your door, not a salesperson. Veteran-owned heating and cooling for Kent County, the beaches and Maryland's Eastern Shore. No cookie-cutter quotes.

Schedule a House Call Call or Text (302) 492-1333

G★★★★★4.8 across 313 Google reviews Same-day during business hours 24/7 on call for real emergencies

The office picks up.Lori and the crew, Mon-Fri 7:30 to 4:30. Not a call center.

Veteran OwnedAir Force trained at Dover AFB

Since 1989Same family, same county

Diamond EliteMitsubishi's top dealer tier

Trane Comfort SpecialistEarned on training and service

DE License #36081Licensed and insured

What's bothering the house?

So what seems to be the trouble?

Pick the symptom. We will name the fix, send a technician who diagnoses before anything is sold, and quote it to your house, not a price sheet.

No heat or no cooling right now?Call the office. A form sits in an inbox, the phone rings. (302) 492-1333

A technician levelling a wall-mounted ductless mini-split head in a bright living room

Sized to the house, not the old unit.Every install starts with a load calculation. Every repair starts with a diagnosis.

Most requestedBlowing warm, short-cycling, or dripping water on the hottest week of the year.AC Repair The old unit is on its third repair and the math stopped working.New System No heat, a furnace that clicks but never lights, or a heat pump stuck in defrost.Heating The addition, the sunroom, or the upstairs that never cools.Mini-Splits Dust on everything, a musty smell, and humidity that will not quit.Air Quality Nothing is wrong yet, and you would like to keep it that way.$249 Plan

Also on the truck: geothermal, boilers, oil service, and water heaters. Geothermal for Delmarva →

Not sure what you are looking at? Text us a photo.Send a picture of the label on the outdoor unit, the thermostat, or whatever is leaking, to the same number you would call. Often that is enough to tell you whether it is a part, a visit, or nothing at all.

Text (302) 492-1333

The Air Doctorx prescription

Diagnose. Prescribe. Treat.

No instant quotes over the phone. Your home is unique and the fix should be too. Three steps, no surprises, and nobody on commission.

1
Diagnose
A certified technician looks at the system, the ductwork and the house itself. The person at your door fixes things for a living. Nobody is paid to upsell you.
2
Prescribe
Options in plain English with real numbers. Delmarva Power and Energize Delaware rebates are applied where you qualify, and we help you qualify.
3
Treat
Installed, tested and verified at full performance before the truck leaves. Then the office follows up to make sure it stayed that way.

Book a Consultation

Same family, same county, every step, since 1989.

A technician's gloved hands checking a gas furnace with a flashlight and multimeter

We don't believe in cookie-cutter instant quotes.

Straight from the Air Doctorx playbook.

Two of the Air Doctorx crew at the company booth, Milford Freedom Festival, with a geothermal unit and ductless mini-split on display

USAF

Trained at Dover AFB

The crew at the Milford Freedom Festival booth. Real people, real equipment, no stock photos.

Google reviews

4.8★

Google rating

24/7

On-call support

Our story

From Dover Air Force Base to your front door.

When we say we treat your home like our own, that is not a slogan. It is one family, one county, and the same phone number for thirty-seven years.

1989Mark starts Sabean Heating and Air Conditioning after learning the trade in the Air Force at Dover. Lori takes over the office the same year.
1994Named Rookie Franchise of the Year in the Air Serve network.
1997Strikes out on his own again. The name becomes Air Doctorx.
TodayStill the same family. Benjamin and Timothy grew up in the field and the front office.

Diamond Elite Mitsubishi Dealer. Trane Comfort Specialist. We install equipment we would put in our own homes.

Patient reviews

Neighbors who let us in.

Every review below is posted publicly on Google by a Delmarva homeowner. The names and the words are theirs, not ours.

4.8 ★313 reviews on Google, verified

New system, one day

★★★★★

Extremely affordable compared to Horizon Services for the same route. The work carried out was very professional and well prepared, very clean. Installed a completely new system in a day.

Andrew EdingtonPosted on Google

Rebate help + install

★★★★★

We had some concerns about a rebate but Mark went over and above to help us qualify. The installation process went smoothly and was done in less than two days. We would highly recommend Air Doctorx.

Dianne MoorePosted on Google

Heat pump + thermostat

★★★★★

They upgraded my thermostat so my heat pump would work. Ken was very thorough and explained the work when he was done. Steve followed up the next day. They have handled my heat and AC systems in our rentals and primary home for years.

Mark PuzzoPosted on Google

What reviewers mention most 22knowledgeable technicians 16routine maintenance 10geothermal system 4mini split installation

Air Doctorx has been earning these since 1989. Diamond Elite Mitsubishi Dealer, Trane Comfort Specialist, DE license #36081.

Book Your House Call

Named, priced, in writing

The plan that keeps July boring.

One plan, two visits a year, and the phone answered first when it is 95 outside. Members skip the line and pay less when something does break.

Comfort Protection PlanPer system. Ductless, oil and multi-system homes priced individually.

$249

per year

Two tune-ups a year, spring and fall
15% off parts on any repair
Discounted diagnostic fee when you do call
Filters included at every visit
Priority scheduling in a heat wave or a cold snap
Refer a new member, get a year free

Join the Plan $25 off through Dec 31, 2026 with the coupon under Current Specials.

Current specials

Coupons worth clipping.

The same offers running at the office right now. Mention one when you call, or drop it in the form and we apply it.

$250 off

Any new AC system installation

Expires Dec 31, 2026

Free Air Scrubber

With a qualifying system upgrade: AC and furnace, or heat pump and air handler. Call for details.

Expires Dec 31, 2026

$25 off

The Comfort Protection Plan, normally $249 a year per system

Expires Dec 31, 2026

No coupon games. These run on airdoctorx.com and every one is honored on the phone: (302) 492-1333

Financing and rebates

What would a new system run per month?

A replacement quote lands easier as a monthly number than a lump sum. Drag the slider to your quote, or your best guess, and see it as a payment. Delmarva Power and Energize Delaware rebates can shrink the starting number before financing even begins, and we help you qualify.

Financing through Synchrony • Wells Fargo • Service Finance • Energize Delaware

Financing & Rebate Details

Monthly Payment Estimator

System cost $12,000

Term

Example APR

Estimated payment$255/mo

An illustration, not an offer. Your rate and term come from the lender after approval, and rebates on qualifying high-efficiency equipment can lower the price you finance. We walk you through both.

Get a Real Quote

Service area

House calls across Delmarva.

Based in Hartly, we cover central and southern Delaware plus Maryland's Eastern Shore. If you are within an hour of us, the doctor makes house calls.

Not sure if you are in range? Send us your zip code and we will let you know.

DoverHartlySmyrnaCamdenWyomingMilfordHarringtonMagnoliaFeltonClaytonFredericaHoustonLincolnViolaLewesRehoboth BeachDewey BeachMiltonGeorgetownMillsboroBridgevilleGreenwoodSelbyvilleOcean ViewDagsboroBethany BeachTownsendOdessaMiddletownNew CastleNewarkBearHockessinWilmington

CentrevilleEastonDentonQueenstownStevensvilleChurch HillRock HallChestertown AreaMillingtonGreensboroRidgelyHurlockCordovaCrumptonQueen AnneMarydelOxfordRoyal OakSaint MichaelsEarlevilleWarwickKennedyvilleStill Pond

The wrapped Air Doctorx service vehicle with the phone number and license numbers on the side

Hartly, DE · Home base

Ask the doctor

Questions the office answers most.

Yes. We provide 24/7 on-call support for heating and cooling emergencies across Delaware and the Eastern Shore. Call or text (302) 492-1333 any time, day or night.

In our Zone 4A climate, modern cold-climate heat pumps handle most Delmarva winters efficiently, and dual-fuel setups pair a heat pump with a furnace for the coldest snaps. We assess your home before recommending either. There is no one-size-fits-all answer, which is exactly why we do not do instant quotes.

Yes. Delmarva Power and Energize Delaware offer rebates on qualifying high-efficiency equipment, and helping customers qualify is something we are known for in our reviews. We also offer Synchrony and Wells Fargo financing.

Once a year, ideally in spring before cooling season. Regular maintenance keeps efficiency up, protects your warranty, and catches small problems before they become July breakdowns. Ask about our Maintenance Plan for scheduled visits.

We are a Diamond Elite Mitsubishi Dealer and a Trane Comfort Specialist. HVAC equipment is one of the biggest purchases you will make for your home, so we only install brands we trust to hold their value.

Yes. Along with central and southern Delaware, we serve Eastern Shore communities including Centreville, Easton, Denton, Queenstown, and Stevensville, Maryland.

Request service

Ready for a house call?

Give us the short version. Which room, what the system is doing, and how long it has been going on. That is usually enough for us to show up with the right parts on the truck.

Dr. Chill's office picks up.Lori and the crew, Mon-Fri 7:30 to 4:30. On call 24/7 for emergencies.

A real person answers. Not a call center, not a menu.
You get an arrival window. Same day during business hours whenever the schedule allows.
A technician diagnoses before anything is sold. Nobody here works on commission.

Call or text 24/7(302) 492-1333

info@airdoctorx.com

4639 Halltown Road, Hartly, DE 19953

Mon-Fri 7:30 AM to 4:30 PM. On call after hours for emergencies.

Request Service

We respond during business hours the same day.