Serving Montgomery County since 1977301-972-0017
HVAC technician servicing an outdoor cooling system
Don Hoffacker's Air Conditioning & Heating, Inc.

Serving Montgomery County since 1977

Heating & Cooling, Done Right.

Professional repair and installation across Montgomery County, from heat pumps and gas furnaces to air quality, water heaters, ductwork, and geothermal systems.

Call 301-972-0017Free estimates on installations
ExploreWhat we service

Services

Repair & Installation, Under One Roof.

System RepairHeating & cooling
  • Heat pump and air conditioning repairs
  • Gas furnace diagnostics and service
  • Humidifier, air cleaner, and water heater service
  • Ductwork and system performance checks
Full InstallationFree estimates
  • Heat pump and geothermal systems
  • Gas furnace replacement
  • Custom duct fabrication and repair
  • Whole-home humidification and filtration
Don Hoffacker's Air Conditioning and Heating building in Germantown, Maryland

Our home in Germantown

Local Since 1977.

The same local business, presented with a cleaner look that keeps Don Hoffacker's real history and identity front and center.

The Don Hoffacker's team in front of the company sign at the Germantown shop
Our team
Don Hoffacker's service vans parked at the shop in Germantown, Maryland
Our fleet

Real work

Before & After, In the Field.

Older furnace before replacement
Before
New furnace after professional installation
After

What customers say

Trusted by Neighbors.

“We love Don Hoffacker's and used them for over 35 years in Gaithersburg. Just had our fall system check in our new house in Urbana and Michael is the best! He is very professional, did a great review of our system. We will continue our relationship with this great company.”
— Longtime customer, Urbana
“The service technicians are very knowledgeable and they LISTEN to the customer to help diagnose the issue, and they're very good at explaining the issues and potential solutions. Highly recommend Don Hoffacker for HVAC needs!”
— Customer for 10+ years
“I've used DH's for service and maintenance a few times over the last decade and they are fantastic: great service, great communication, good prices, and always on time.”
— Service & maintenance customer
“Great crew installed a new HVAC system and water heater. Fair pricing and expert installation. You can't ask for more than that.”
— Installation customer

Website makeover

Estimated Website Makeover Value

What a complete, polished website upgrade delivers for Don Hoffacker's — designed and built around the final client-approved copy and photography.

$4,800–$7,500 typical range — our pricing is a fraction of what big agencies charge.

  • Design, copy editing, and mobile build
  • Core service, work, and contact pages
  • Launch preparation, testing, and 30-day support

Pricing is tailored to the final scope — page count, photography, forms, hosting, and content readiness.

Get additional pricing info