62 Central Street, Winthrop, ME 04364



The mission of Dave’s Heat Pumps is to be a leader in its regional market of mini-split heat pumps, VRF, and mechanical ventilation system design, installation, and related service, by means of an exceptional reputation and an unfailing policy of quality customer service. We believe the customer is our most valuable asset, and we will work to achieve a positive, life-long relationship with our customers and building contractors based on the highest standards of conduct and ethics.


Our start in the mini-split heat pump trade began in 2004 as a part of the home air conditioner line of products and services that we have offered since 1977. We began with a few installations sprinkled throughout our service area, and by 2006, heat pumps started becoming a feasible cooling and supplemental heating option in Maine’s unique climate. Dave’s expanded the focus from refrigeration service to include heat pump installations, looking to provide the same quality sales and service that Dave’s Appliance had provided for decades prior in Central Maine.

Almost 20 years later, the Dave’s Appliance Heat Pump Division has installed thousands of high-efficiency systems across the State of Maine, and grown to a team of more than 30 sales, service, and installation technicians dedicated to ensuring your needs are met, now as Dave’s Heat Pumps! With the increased national popularity of heat pump products and services, it is our small-town integrity, responsive service, and competitive buying power that distinguish us from the rest.
We are a 2nd and 3rd generation family-owned and operated HVAC contractor who takes a lot of pride in our top-notch designs and installations, as well as attention to service after the sale. We operate with the same integrity as our founders, David and Denise Ketchen, and strive to add comfort, affordability, and savings to our clients’ annual energy costs.


  • Free in-home design consultation with our knowledgeable comfort specialists
  • Load calculation to ensure proper system design
  • Detailed proposal outlining job design, unit sizing, and description
  • Exceptional installation
  • Licensed, knowledgeable, factory-trained technicians
  • Fully insured
  • System operation overview so you are comfortable with how to use your new heat pump
  • We service what we sell
  • Extended warranty and maintenance plans are available
  • Quality Service…Always


Factory Trained and Certified Installers and Technicians
Professionally trained and knowledgeable Sales Associates
Working showroom for customers to see, hear, and experience our products.
Courteous In-store customer service
Residential and commercial projects
2nd and 3rd generation family ownership and management
Health and retirement benefits to our employees


It is the policy of Dave’s Heat Pumps to work directly with the customer in selecting products especially suited to their tastes while practicing fair price negotiation. For the past 20 years, we have strived to build our business on excellent, long-lasting relationships with both contractors and consumers. It is the welfare of our customers and their pride in their homes and businesses that are our greatest priorities.
The owners and associates of Dave’s Heat Pumps have consistently enjoyed sole rapport with developers, landlords, builders, plumbers, and electricians. Not only do we value their confidence in us as HVAC contractors, but we also reciprocate in kind by delivering the best customer service possible to their clients.


Since our beginning in 1977, Dave’s Appliance, Inc. and Dave’s Heat Pumps has reinvested in Winthrop, its surrounding towns, and the state of Maine through school and charity sponsorships, volunteerism, and membership in area chambers of commerce and regional economic development organizations.

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