St. Louis's 24/7 HVAC crew · Est. 2009

Heat broke.
A/C down.
We're already on the way.

Dee's Heating & Cooling LLC keeps the St. Louis metro breathing easy — honest repairs, right-sized installs, and a real person on the other end of the line, day or night, rain or polar vortex.

Preferred contact

Fastest for emergencies — a real person picks up.

No spam. We call back — we don't sell your number.

Licensed & Insured
5-Star Rated
Same-Day Service
Locally Owned

What we do

Every comfort problem, one crew.

From a frozen coil at noon to a full furnace swap in January — we stock the common parts on the truck and most repairs finish the same day you call.

Air Conditioning Repair

Cold air, restored — usually the same day.

Compressor failures, low refrigerant, frozen coils, bad capacitors, and the dreaded 'blows warm' call. Our techs arrive with the common parts on the truck and most A/C repairs are finished in a single visit.

Diagnostic from $89 · Repairs quoted up front

Same-day

on most A/C repairs

$89

flat diagnostic

24/7

emergency dispatch

Book a same-day A/C visit

Heating & Furnace Repair

No-heat calls answered 24/7 all winter.

Pilot light out, igniter failed, heat exchanger cracked, or the blower won't kick on. We diagnose gas and electric furnaces, repair cracked heat exchangers, and get warm air moving again before the house freezes.

Emergency heating 24/7 · Flat-rate repairs

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New System Installation

Right-sized, not rule-of-thumb.

We replace aging furnaces and A/C units with high-efficiency systems sized to your home with a real Manual J load calculation — never the 'bigger is better' guess that leaves you with humidity problems and high bills.

Systems from $4,900 · Financing available

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Preventive Maintenance

Catch the problem before the emergency.

Our Comfort Club keeps your equipment clean, refrigerant charged, and small problems small. Two seasonal tune-ups, priority dispatch, and 15% off any repair. Members never pay the after-hours premium.

Comfort Club from $19/mo · No contract

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24/7 Emergency Service

A real person answers, day or night.

No heat at 2am. No cool at noon on the hottest day of the year. Our emergency line rings a technician — not a call center — and we dispatch across the St. Louis metro around the clock.

Available every day · No overtime surcharge for members

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Indoor Air Quality & Smart Thermostats

Breathe better. Control it from your phone.

Whole-home air purification, humidity control, UV coil lights, and smart-thermostat installs that learn your schedule. We integrate with existing systems so you don't replace what still works.

Air quality from $390 · Smart installs from $249

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See the difference we make

Drag any card to compare. Real jobs, real before-and-after results from across the St. Louis metro.

Old rusted outdoor A/C condenser unit before replacement in St. LouisNew clean 16-SEER A/C condenser unit after replacement in St. Louis
BEFOREAFTER

A/C Condenser Replacement

SOUTHAMPTON · ST. LOUIS

Swapped a dead 18-year-old condenser for a 16-SEER unit and recharged the line set. Whole house dropped 6° in twenty minutes.

Old rusty gas furnace in a Florissant basement before repairNew high-efficiency white gas furnace installed in a Florissant basement
BEFOREAFTER

Furnace & Coil Full Swap

FLORISSANT · MO

Cracked heat exchanger on a January no-heat call. New 80% AFUE furnace and evaporator coil installed and warm air flowing by sundown.

Old yellowed dial thermostat on a Chesterfield wall before upgradeNew smart thermostat with color touchscreen installed in Chesterfield
BEFOREAFTER

Zoned Smart-Thermostat Install

CHESTERFIELD · MO

Split a 3,200 sq ft home into two zones with smart thermostats. Customer reports the west great room finally stops roasting by 3pm.

Frozen solid indoor A/C evaporator coil covered in ice in KirkwoodClean dry indoor evaporator coil after defrost service in Kirkwood
BEFOREAFTER

Emergency Coil Defrost

KIRKWOOD · MO

Frozen solid indoor coil on the hottest day of July. Cleaned filter, charged refrigerant to spec, and restored cooling the same afternoon.

Dusty neglected HVAC air handler with clogged filter in St. CharlesClean HVAC air handler with new air purifier and UV light in St. Charles
BEFOREAFTER

Humidifier & Air Quality Retrofit

ST. CHARLES · MO

Added a whole-home bypass humidifier and UV coil light to an existing 12-year-old system. Winter dryness and dust complaints gone.

St. Louis trusts us

Real reviews from real neighbors.

Across the metro, homeowners keep our number saved — because when the house gets too hot or too cold, we answer.

Our furnace quit on a 14-degree night and Dee himself answered at 11pm. Tech was at the house by 6:30am and had warm air flowing before the kids woke up. Didn't gouge us on the emergency call either.

Marcus T.

Florissant, MO · Emergency Furnace Repair

Two other companies tried to sell me a whole new A/C. Dee's crew found a clogged drain line and a bad capacitor, fixed both for under $400, and told me my unit had a few good years left. Honest people.

Latoya B.

Southampton, St. Louis · A/C Repair

They did a real load calc before quoting the new system — none of the others did. House is more even than it's ever been and the gas bill dropped noticeably. Crew was tidy and on time both days.

Greg & Susan P.

Chesterfield, MO · New System Installation

Joined the Comfort Club last spring and it already paid for itself — they caught a low refrigerant charge during the tune-up before it killed my compressor in August. Worth every penny.

Dana R.

Kirkwood, MO · Preventive Maintenance

Smart thermostat install went sideways with my old wiring and the tech stayed an extra hour rerouting it correctly instead of leaving me with a half-working mess. That's the kind of crew you want.

Eli K.

St. Charles, MO · Smart Thermostat Install

Called about humidity and dusty air. They added a whole-home purifier and a UV light without overselling me a new furnace. I can finally sleep without the humidifier running in every room.

Patricia M.

Bridgeton, MO · Indoor Air Quality

4.9/5· 187+ Google reviews
Meet the crew →

Need it fixed today?

Don't sweat it.
Don't freeze it. Book it.

Most St. Louis emergency calls are reached in under 45 minutes. Send your details and we'll dispatch the nearest tech — no after-hours surcharge for Comfort Club members.

Preferred contact

Fastest for emergencies — a real person picks up.

No spam. We call back — we don't sell your number.

Licensed & insured

Missouri-licensed and fully insured on every job.

Right-sized installs

Manual J load calc — never a guess.

Up-front pricing

You approve the price before we lift a wrench.

Fast dispatch

Most metro calls reached in under 45 min.