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(240) 896-8291

HVAC in Gaithersburg, MD

Quality Workmanship That Speaks for Itself

Don't sweat through another night or pile on another blanket. Gaithersburg HVAC delivers fast, dependable HVAC repair and replacement for local families, backed by upfront pricing and real results.

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Same-Day Service Any Make & Model Upfront Pricing
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Same-Day & Emergency Service
★★★★★ 4.9 / 5 stars (95+ reviews)
4.8 ★ Average Rating
3,000+ Systems Serviced
Same-Day Service Available
Upfront Pricing
Same-Day Service
Local & Family-Owned
Experienced Techs
Heating & Cooling Experts
Our team of technicians providing HVAC in Gaithersburg, MD
Why Local Matters

Fast Help When Your Comfort Quits

A broken AC or furnace doesn't wait, and neither should your service company. With technicians based around the Gaithersburg area, we provide fast, reliable service and hands-on care from experienced pros who know the climate and housing stock of our region.

800+Repairs Done
Same-DayAppointments
UpfrontRates
What We Do

Complete Heating & Cooling Solutions

One call handles it all. AC repairs, furnace service, heat pumps, mini-splits, duct cleaning, and emergencies, handled by experienced professionals.

Air Duct Cleaning

Dust, odors, and weak airflow traced back to the ductwork and fixed.

AC Repair

Cold air back fast, with the common parts already on the truck.

HVAC Maintenance

Seasonal tune-ups that catch small problems before they strand you.

Heating Repair

Heat pumps, furnaces, and boilers brought back to steady, even heat.

HVAC Repair

Repairs for any heating or cooling system, diagnosed with real testing instead of guesswork.

Furnace Installation

Furnace replacements matched to your home, not the biggest unit on the truck.

HVAC Replacement

Honest repair-or-replace advice, and clean changeouts when it's time.

HVAC Installation

Complete heating and cooling systems designed around your home's actual load.

Heat Pump Installation

Heat pumps sized for your climate, with backup heat set up correctly.

AC Installation

New air conditioners sized by load calculation and commissioned properly.

Furnace Repair

Gas and electric furnace repairs with combustion and safety checks included.

Ductless Mini Split Installation

Targeted comfort for additions, garages, and rooms the ducts never reached.

The right HVAC pro is just a call away.

  • Repairs and Installations
  • All-Brand Service
  • Transparent Rates
  • Quick Response
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4.8/5150 reviews
What Homeowners Call Us For

The Two Repairs We Get Called For Most

When the air conditioning quits or the furnace won't light, you need a technician who finds the real problem and fixes it the same day.

AC Repair in Gaithersburg

Most air conditioner breakdowns trace back to one failed part: a weak capacitor, a burned contactor, a seized fan motor, or a slow refrigerant leak. We diagnose it with gauges and meters, not guesswork. You get a clear price before any work starts, and if the system is old enough that replacement makes more sense, we'll show you both numbers.

  • Warm air coming from the vents
  • Condenser fan not spinning
  • Ice on the refrigerant lines or indoor coil
  • Condensate backing up around the air handler
See how we handle AC repairs

Furnace Repair in Gaithersburg

When the furnace clicks but never lights, lights and shuts off, or runs without warming the house, the cause is usually one component. We test the ignition, airflow, and safety controls to find it. Every visit includes a safety check of the burners and venting, and you'll know the price before we start.

  • Furnace clicks but never lights
  • Short cycling on and off
  • Blower running but the air isn't warm
  • New noises when the furnace kicks on
Furnace repair costs and common fixes
When to Call

Common Heating & Cooling Problems in Gaithersburg

Most failures start small and give you clues first. Below are the warning signs local homeowners run into most, and any one of them is reason enough to call us for a closer look.

AC Blowing Warm Air

When the AC runs but the house won't cool, the fault is almost always one specific component. We find it and fix it fast.

AC repair

Furnace Won't Stay On

A furnace that lights and then shuts down within seconds usually has a dirty flame sensor or a failing igniter, quick fixes for an experienced tech.

Furnace repair

Rising Bills, Weak Airflow

Weak airflow at the vents points to duct restrictions, a struggling blower, or high static pressure. A tune-up finds it before it kills the motor.

Maintenance & tune-ups

Old System, Repeat Repairs

R-22 refrigerant, rust on the cabinet, a compressor on its second capacitor, these are signs the smart money is on replacement.

System replacement

Dusty Air & Musty Smells

Dust settling everywhere within a day of cleaning, musty odors when the system kicks on, or allergy flare-ups indoors all point to the ductwork.

Air duct cleaning

Rooms That Never Get Comfortable

Mini-splits deliver precise heating and cooling to a single zone, run whisper-quiet, and sip electricity compared to window units.

Mini-split installation
15+ Years of Local Experience
5,000+ Satisfied Customers
Same Day Service Available
98% Problems Solved
Why Work With Us

What Sets Us Apart

Same-Day Response

When the heat is out in January, hours matter. Our local technicians roll out same-day with stocked trucks, ready to repair on the spot.

Skilled Professionals

We don't cut corners. Our team is experienced, background-checked, and fluent in every major brand, from a 20-year-old gas furnace to the newest inverter-driven heat pump.

No Upsell, Ever

If a $40 capacitor fixes it, that's what we'll tell you. We quote repair and replacement honestly, with real numbers, and let you choose, no scare tactics, no pressure.

We Fix the Cause

Installations get the full treatment, real load calculation, correct line sets, sealed and balanced ductwork connections, and a complete commissioning test before we leave.

Your Gaithersburg HVAC Team

Trusted HVAC Service in Gaithersburg

Gaithersburg HVAC has proudly served this community and the surrounding MD towns for more than 15 years. We know this area inside and out because this is our home, not just our service area.

Knowing Gaithersburg is half the job. We've learned which neighborhoods run undersized ducts, how the local climate loads systems season to season, and what inspectors here look for on permits, and we put that knowledge to work on every job so it's done right the first time.

Need HVAC Help in Gaithersburg?

Get a price quote from a local team that knows homes like yours.

Call (240) 896-8291
★★★★★ Rated 4.8/5 by local homeowners
HVAC in Gaithersburg, MD: HVAC technician walking up to a home with his tools
10+ Years Serving the Area
Upfront Pricing & Quotes
Same-Day Service Available
99% Customer Satisfaction
Our Process

How We Get Your System Running

From the first call to the final airflow check, our method is built to solve the problem completely the first time.

Homeowner reviewing repair options with a technician in Gaithersburg, MD
01

Call Us Anytime

Ring (240) 896-8291 whenever it suits you. We'll talk through the symptoms, tell you if anything needs immediate attention, and lock in a visit time that fits your schedule.

02

On-Site Assessment

A technician evaluates the unit on-site, confirms exactly what's wrong, and lays out a plan and a price before any work begins.

03

Repair or Replace

We complete the approved work on the spot whenever possible: quality parts, code-compliant connections, and no shortcuts hidden behind the air handler.

04

Stay Comfortable

We verify temperatures at the vents, check the charge, confirm the condensate drains clear, and walk you through what was done. Optional maintenance plans keep the system cleaned, inspected, and running efficiently for years.

Call (240) 896-8291

Upfront pricing · Same-day service available

Fast Response

What Happens After You Call

Speed matters when the temperature is climbing or dropping. This is the sequence our team runs through, from the moment your call comes in to the moment your system is running again.

The call

We Pick Up Fast

Our team answers your call promptly, gathers the information we need, cooling or heating, running or dead, any error codes on the thermostat, and gets you on the schedule, often same-day. We'll walk you through switching the system off if it's iced over or short-cycling in the meantime.

Right away

Prompt On-Site Visit

Your technician shows up ready to work, not just to look. The common failure parts ride on every truck, so the visit moves straight from diagnosis into repair.

The visit

Diagnosis and Repair

The fault is identified, capacitor, motor, refrigerant leak, control board, or the compressor itself. Then, we fix it there and then whenever parts allow, or quote the replacement with real numbers if the unit is done.

Ongoing

Follow-Up and Prevention

Seasonal maintenance runs on your schedule, so you never have to think about it, to clean coils and test components before they cost you a compressor. A maintained system lasts years longer and runs cheaper every month.

No Heat Right Now?

Every hour counts when the house is the wrong temperature. Call now and we'll get a technician out to your home as soon as today.

Call (240) 896-8291
Testimonials

Real Results, Real Reviews

★★★★★
Rated 4.8/5 · 150 reviews

"Another company quoted us a full system replacement. Gaithersburg HVAC found a bad blower motor in twenty minutes and repaired it on the spot. The tech said the rest of the system had years left in it. That kind of honesty is rare."

BF
Brianna F.
Gaithersburg, MD

"Years of dust, pet hair, and who knows what else came out of our ducts. After the cleaning, the airflow from every vent is noticeably stronger, and my wife's morning allergies have calmed way down. They showed us before-and-after photos of everything they pulled out."

GW
Greg W.
Gaithersburg, MD

"Half our house was always five degrees warmer than the thermostat said. The tech rebalanced the dampers and fixed a kinked duct run, then set up a new smart thermostat and actually taught us how to use it. Every room finally feels the same."

RN
Raj N.
Gaithersburg, MD
Why Trust Us

Our Commitment to Gaithersburg Homeowners

We treat your home the way we'd treat our own: thoroughly, honestly, and with an eye on the long term. Here's the standard you can count on from us every time.

Experienced Technicians

The difference shows up in the results. Our technicians have logged real years on these systems, so they identify the actual fault the first time and fix it properly instead of throwing parts at your system until something sticks.

Right-Sized, Code-Compliant Work

Doing it right is built into how we install. We handle the refrigerant, gas, electrical, and airflow details precisely, pull permits where local code requires them, and commission the full system before we call it done, and we tell you what we did and why.

Maintenance That Pays for Itself

Our team believes in keeping systems alive with simple, scheduled care. If you want to avoid the emergency replacement, our seasonal tune-up plans handle the checks that actually extend equipment life. No surprises, no hidden fees. This focus on longevity is why so many homeowners recommend us.

Service Areas

HVAC Service Across the Gaithersburg Area

From our home base out to the neighboring towns, our technicians are based close enough to respond fast wherever your home or business sits.

HVAC Service in Columbia

Experienced HVAC technicians serving the Columbia area. Upfront pricing and honest recommendations.

Learn more

HVAC Service in Hagerstown

Hagerstown's go-to team for AC repair, furnace service, heat pumps, and mini-splits. Same-day appointments available.

View details

HVAC Service in Silver Spring

Keeping Silver Spring comfortable in every season. Diagnose, repair, replace, done right the first time.

Learn more

HVAC Service in Germantown

Complete HVAC care in Germantown. Repairs, installations, duct cleaning, and seasonal tune-ups.

See service area

HVAC Service in Baltimore

Trusted heating and cooling service for Baltimore homes and businesses. Fast response when the AC or furnace quits.

Learn more

HVAC Service in Waldorf

Reliable comfort solutions for Waldorf homeowners. From quick repairs to full system replacements and upgrades.

View details
From Our Blog

Know Your System Better

What our team wants every homeowner to know about heating and cooling.

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Technician holding a new capacitor at an outdoor AC unit

Signs Your Air Conditioner Is Failing in Gaithersburg, MD

Warm air, strange noises, rising bills: what your AC is trying to tell you. What our technicians tell homeowners every day.

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Technician checking the blower compartment of a furnace

Why Is My AC Buzzing and Rattling in Gaithersburg, MD

Which HVAC noises are normal, and which mean trouble. What our technicians tell homeowners every day.

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Quick Answers

Frequently Asked Questions

Most air conditioner repairs in Gaithersburg run between $150 and $650, depending on the part. Common fixes like capacitors, contactors, and fan motors sit at the lower end, while compressor and refrigerant work costs more. If the system is beyond economical repair, full replacement typically ranges from $5,000 to $12,000 installed depending on size and efficiency. We diagnose first and give you a clear, upfront quote before any work begins.
A good rule of thumb: if the system is under 10 years old and the fix is a component, capacitor, motor, igniter, sensor, repair usually makes sense. If the compressor or heat exchanger has failed, the unit is past 12 to 15 years old, or repairs are stacking up season after season, replacement is the smarter investment. Our technicians walk you through both numbers honestly so you can decide with real information.
We offer same-day and emergency HVAC service throughout the Gaithersburg area. Our trucks carry the most common parts, capacitors, contactors, igniters, flame sensors, and universal motors, so the majority of repairs are completed in a single visit. Even full system replacements are usually scheduled within days, not weeks.
For many Gaithersburg homes, yes. Modern heat pumps heat and cool from a single system, run far more efficiently than electric resistance heat, and current models perform well even in cold weather. They cost more upfront than a basic AC swap, which is why we run the numbers on your actual usage and utility rates before recommending one.
Yes. Our technicians work on all major residential and commercial brands and system types, central air conditioners, gas and electric furnaces, heat pumps, packaged units, and ductless mini-splits. We carry universal parts on the truck and can source brand-specific components quickly when needed.

AC Down? Heat Out? Call Now.

The longer a struggling system limps along, the more it costs you. One call gets you same-day service and a clear quote from a team that knows Gaithersburg.

Call (240) 896-8291 Now
AC Down? Call NowExperienced Technicians Standing By