Top
$0 Diagnostic Fee Learn More

Air Conditioning Services in Gaithersburg, MD

ACE-Certified Technicians. No Surprise Charges. One Company for Every Cooling Need.

Maryland summers don’t ease up. From late June through August, Montgomery County homeowners and businesses face heat and humidity that push AC systems hard, and when a system fails, the window from discomfort to real concern closes fast. CroppMetcalfe Gaithersburg is the air conditioning company Gaithersburg residents and commercial customers call when they need a fix that lasts, not a patch that buys a few weeks.

Our technicians are ACE-certified, licensed, bonded, and insured, and background-checked before they set foot on your property. Pricing is discussed upfront. No hidden fees, no recommendations designed to pad a bill. Live customer support is available 24/7, so you can reach us whenever a problem surfaces. We hold a 4.8 average rating on Google because we treat the service call as the beginning of a relationship, not the end of a transaction.

What Sets CroppMetcalfe Gaithersburg Apart

ACE certification isn’t a logo. It’s a named industry standard for technician training and technical knowledge, and every technician we send carries it. When work is done on your system, the Service Experts Guarantee backs it: every piece of equipment we work on or install is set up to manufacturer specifications, and we stand behind that.

What you can count on with every service call:

  • ACE-certified, background-checked technicians: Verified professionals on every visit, residential and commercial.
  • Upfront, transparent pricing: You know the cost before work begins. No surprise charges, no unnecessary upsells.
  • Service Experts Guarantee: Equipment is installed and serviced to manufacturer specifications.
  • 10% military discount: Available for active duty, retired, and veteran military personnel.
  • 24/7 live support: A real person answers when you call, day or night.

Get dependable AC solutions built around your needs. Call (301) 579-0110 today to get your quote.

Read More Read Less
  • Limited
    Time
    Offer!
    $0 Diagnostic Fee

    Waived fee for all HVAC, Plumbing, Electrical and Water service calls.

    Promotion valid for service visits occurring 8/20/26 - 9/30/26. Cannot be combined with other offers outside of membership discounts. No cash value. Offer may be modified, suspended, or withdrawn at any time as permitted by law. Aug 20, 2026 - Sep 30, 2026
  • No Payments Until 2027

    With any new HVAC, Indoor Air Quality, Water Heater or Water Treatment Service Experts Advantage Program lease agreement, we will make your payments for the first 6 months.

    Valid on new Advantage Program lease agreements from 7/1/26 to 9/30/26. Customer owes $0 for the first six months; regular monthly lease payments begin thereafter. Early termination during promotional period will result in charges for elapsed months. See your full Advantage Program Lease Agreement for complete terms and conditions, including total lease costs and payment schedule. Jul 1, 2026 - Sep 30, 2026
  • NEW HVAC SYSTEM as low as $155/month

    NO money down; Brand new, high-efficiency equipment; installation, regular preventative maintenance, all repairs (parts & labor), and air filters INCLUDED.

    Offer not valid on prior purchases and may not be combined with other offers. Advantage pricing applies to specific equipment. Call for details. Some exclusions apply. See the terms and conditions within the Service Experts Advantage Program Lease Agreement for additional information.
  • $99 Drain Cleaning

    Regularly $235. Reduce buildup on your pipes, Help avoid major plumbing repairs, Maintain a clean home.

    Offer not valid on prior purchases and may not be combined with other offers. Valid for one drain only. Accessible ground level clean. Call for more details.
  • 10% Off Any Product or Service for Active Duty, Retired, and Veteran Military Personnel

    It’s our way of thanking you for your courage, dedication, and sacrifice to protect our freedom. All work is performed by licensed experts and backed by our Service Experts Guarantee.

    Offer not valid on prior purchases and may not be combined with other offers.
  • Members exclusive: 15% off services and repairs

    As a Maintenance+ member, you automatically receive discounts on all services and repairs.

    See your signed Maintenance+ Membership agreement for full terms and conditions.
  • $99 HVAC Precision Tune-Up

    Save $90 on your comprehensive HVAC tune-up

    Offer not valid on prior purchases and may not be combined with other offers except member discounts. Excludes oil furnaces or boiler tune-up; call for pricing. $90 off our standard $189 rate. Valid from 9/19/26 through 10/31/26. Sep 19, 2026 - Oct 31, 2026
  • 80% off first year’s price of an annual Plumbing Membership

    Upgrade your membership to include plumbing coverage for only $12 for the first year*

    Must have HVAC membership to receive Plumbing add-on discount. Promotional plumbing add-on price; save $48 in the first year with discount. Annual membership promo price of $12 must be paid up front. After the first year, standard pricing applies (currently, $60/year). Valid from 9/19/26 through 10/31/26 at select Service Experts locations, call for more details. Sep 19, 2026 - Oct 31, 2026
  • $99 HVAC Precision Tune-Up

    A well-maintained system operates more efficiently, reducing energy consumption and lowering heating and cooling bills

    Offer not valid on prior purchases and may not be combined with other offers. Excludes oil furnaces; call for pricing. **Potential savings may vary depending on age and condition of equipment, personal lifestyle, system settings, equipment maintenance, and installation of equipment and duct system.
  • Earn up to $1,800 in rebates when you purchase or lease a qualifying Lennox system

    System rebate requires the purchase of a Lennox indoor unit, an outdoor unit and a qualifying thermostat. System add-ons do not qualify for an individual rebate and cannot be combined with individual offers. Rebate offer valid from 9/19/26 until 12/4/26 and must be installed by 12/11/26 and submit claims by 1/10/27. Rebate is paid in the form of a Lennox prepaid Mastercard.

    All rebate information found at https://www.lennox.com/residential/buyers-guide/offers-and-savings/promotions/. Equipment varies by Service Experts location, call your local Center for more details. Sep 19, 2026 - Dec 4, 2026
1 /
FAQs We’ve Got Answers to Your AC Services Questions
  • Packaged HVAC units are all-in-one HVAC systems that house an air handler and unit parts in one metal cabinet system. This is used to maximize space in a basement or garage, or on rooftops in multifamily buildings.
  • HVAC tune-ups can often be covered in most cases under a labor warranty if your system is still under warranty, but we can check to see if tune-ups are covered. Through the Advantage Program™, key services such as heat pump maintenance are included! It’s one of the most comprehensive HVAC plans around.
  • Seasonal maintenance plans are worth the investment for several reasons. Consistent maintenance keeps everything working as seamlessly as possible, which helps lower energy bills while extending your equipment’s life span.
  • Yes. Our Experts are just a short way away, whether you’re in need of a heat pump repair or replacement on a weekend day or in the middle of the night. Give us a call at (301) 579-0110 for prompt service.
  • Keeping your systems maintained will help bring costs down. Check our helpful in-depth information about keeping your systems healthy. This will tell you about proper maintenance and why it’s important.
Why Call Anyone Else? We're the Experts in Home Services

Our Gaithersburg team is ready to take care of your home service needs—with fast service and expert services that you can always rely on.