Mini‑Splits • Heat Pumps • Condensers • Whole‑Home Comfort

Building new? Renovating? Expanding? We design and install matched systems—air handlers, condensers, heat pumps, and controls—sized to your home’s heating & cooling loads. We evaluate insulation levels, window orientation, existing ductwork (if any), and air sealing so your new system performs the way the efficiency label says it should.

Includes: load calc review, equipment selection options (good/better/best), duct design or modification, thermostat/controls setup, start‑up & performance check.

 Perfect for homes without ductwork, room additions, finished basements, bonus rooms over garages, or targeted comfort fixes. Modern mini‑split heat pumps provide heating and cooling with excellent efficiency—even in cold weather models designed for Massachusetts winters.  

What you get:

• Wall, ceiling cassette, or floor console indoor units
   
• Multi‑zone (one outdoor condenser serving several rooms) or single‑zone setups
   
• Low‑profile line‑set routing & weather protection covers
   
• Condensate drainage solutions that won’t stain walls or freeze in winter
   
• Wi‑Fi / smart control options
   

Ask about member‑rate cleanings when bundled with our Annual HVAC Service Agreement.

Upgrading an aging outdoor unit? Electrifying your home? Swapping a failed condenser? We install high‑efficiency heat pump condensers that can tie into existing indoor coils/air handlers (where compatible) or as part of a full system upgrade.

Benefits: improved efficiency, quieter operation, potential utility incentives, and lower carbon footprint compared to straight AC + fossil fuel heating alone (when paired with compatible backup heat).

If your system is 10–15+ years old, uses R‑22 refrigerant, or struggles to keep up, replacement may be more cost‑effective than constant repairs. We provide side‑by‑side comparisons: repair vs. replace cost projections, energy savings estimates, and standard vs. high‑efficiency model options so you can choose what makes sense for your budget and long‑term plans. 

Indoor air quality is vital for your health and comfort. At David J. Murphy Plumbing and Heating, LLC., we offer expert solutions to improve your indoor air quality. From air purifiers to efficient ventilation systems, we have the tools to help you breathe easier. Our team will work with you to find the right solutions for your home. Contact us to learn more.

Ensure your commercial property’s HVAC system is in top shape with David J. Murphy Plumbing and Heating LLC.. We offer comprehensive HVAC services tailored to businesses, including installation, maintenance, and repair. Our skilled team understands the unique needs of commercial systems and is committed to providing efficient, reliable service. Let us help you maintain a comfortable environment for your employees and clients.