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Connolly Heating & Air Conditioning

Heat Pump Installation & Repair in Walnut Creek

Heat Pump Service for All Makes & Models from a Company Established in 1971

Whether you’re upgrading outdated HVAC equipment, replacing a furnace, or restoring an existing system, Connolly Heating & Air Conditioning provides Carrier heat pump installation, repair, replacement, and conversion services throughout Walnut Creek and nearby communities across Contra Costa County. We service all makes and models and diagnose problems such as weak airflow, inconsistent temperatures, unusual noises, inadequate heating, or inadequate cooling.

A heat pump provides both heating and air conditioning from a single system by transferring heat rather than generating it through combustion.

Our recommendations account for the system’s condition, the property’s heating and cooling requirements, comfort goals, efficiency priorities, and budget.

Call Connolly Heating & Air Conditioning at (925) 281-3462 to request heat pump service in Walnut Creek.

Our heat pump services include:

  • Heat Pump Installation: We evaluate your home’s layout, heating and cooling requirements, existing equipment, and efficiency goals before recommending a system. Proper equipment selection matters because an incorrectly matched heat pump can struggle to maintain consistent comfort.
  • Heat Pump Replacement: We replace aging or unreliable heat pumps with equipment selected for the property’s needs. When repair and replacement are both possible, we can evaluate the system’s condition and help you compare the options.
  • Heat Pump Repair: Our technicians diagnose heating and cooling problems before recommending repairs. An assessment may involve the thermostat, airflow, electrical components, coils, defrost cycle, reversing valve, controls, or refrigerant system.
  • Preventative Maintenance: Our heat pump maintenance includes inspection, cleaning, testing, and adjustment of components that affect performance. Because the same equipment works during heating and cooling seasons, routine service can identify wear and performance issues earlier, although it can’t eliminate every future repair.
  • Heat Pump Conversion: We convert compatible traditional furnace systems to electric heat pumps. The right approach depends on the home’s existing HVAC equipment, electrical capacity, ductwork, comfort needs, and budget.

Common Signs You Need Heat Pump Repair

A heat pump that isn’t heating or cooling properly needs professional evaluation. Problems can involve a correctable component, an airflow restriction, or equipment whose age and condition make replacement worth considering.

Schedule an assessment if you notice:

  • Weak airflow or uneven temperatures between rooms
  • Frequent short cycling or unusually long operating cycles
  • Grinding, rattling, buzzing, or other unusual noises
  • Ice forming on the outdoor unit outside normal defrost operation
  • A thermostat that doesn’t match the indoor temperature
  • Inadequate heating, inadequate cooling, or rising energy use

Benefits of a Heat Pump in Walnut Creek

When properly selected and installed, a heat pump may offer efficient operation and consistent indoor comfort from one system.

Potential benefits can include:

  • Year-round heating and cooling
  • Efficient heat transfer rather than combustion-based heating
  • Consistent indoor temperatures
  • Quiet operation with properly maintained equipment

Heat Pump vs. Furnace

A heat pump transfers heat, while a furnace generates heat through combustion. This difference affects equipment design, energy use, and how each system operates during colder weather.

Neither option is right for every property. We can evaluate your existing system, electrical and ductwork conditions, comfort needs, efficiency priorities, and budget when discussing a heat pump or furnace.

Neighborhoods We Serve for Heat Pump Service in Concord

Downtown Concord and Todos Santos Plaza: The older homes around Todos Santos Plaza and downtown Concord often run aging HVAC systems that struggle through inland summer heat. Many of these houses are prime candidates to convert an old furnace and AC combo into a single efficient heat pump. We help downtown Concord homeowners upgrade without disrupting the character of their home. 


Ygnacio Valley: Established Ygnacio Valley neighborhoods sit in some of the hottest inland pockets of Concord, where a heat pump earns its keep every summer. Homes here frequently need replacement units once their original systems pass the fifteen-year mark. We size and install high-efficiency heat pumps built for this area's demanding cooling load. 
Clayton Valley and Dana Estates: Larger homes in the Clayton Valley and Dana Estates areas often deal with rooms that never cool evenly on a single-zone system. A properly sized heat pump with the right airflow design fixes those hot and cold spots. We assess each home individually and recommend zoning where it makes sense. 
Willow Pass and Sun Terrace: The mid-century homes near Willow Pass Road and Sun Terrace were built for a different era of heating and cooling, and many still run original ductwork and aging equipment. These are the homes where switching to an efficient heat pump makes the biggest difference in comfort and monthly bills. We handle the full conversion, from load calculation to final startup.  





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Serving Concord and the Surrounding East Bay

Based in nearby Pacheco, we provide fast HVAC service across Concord and the wider Contra Costa County area. If you are just outside the areas listed below, call us and we will confirm coverage for your address.

Certified Heat Pump Service for All Makes & Models

We provide HVAC services for homes and businesses throughout Walnut Creek and Contra Costa County. Established in 1971, we bring more than 50 years of HVAC experience to equipment selection, diagnosis, and service. Our NATE-certified technicians service all makes and models, and our BPI certification reflects national standards for home performance and energy efficiency.

Our customer benefits and credentials include:

  • Carrier Factory Authorized Dealer: We meet Carrier’s standards for technical knowledge, customer service, and business practices.
  • Free Estimates: You can request an estimate before moving forward with heat pump service.
  • Financing Options: Financing options are available for qualifying projects.
  • Warranty Coverage: Available warranty coverage can vary by equipment and service.
  • Satisfaction Guarantee: Our work is backed by our satisfaction guarantee.

Contact Connolly Heating & Air Conditioning for heat pump installation, repair, replacement, conversion, or preventative maintenance in Walnut Creek. Financing options and warranty coverage are available. Call (925) 281-3462 or request an estimate online.

Pacheco Trusted Family-Owned Heat Pump Company Since 1992

Connolly Heating and Air Conditioning has served Concord and the surrounding East Bay for more than three decades. We are family-owned, and the same values that built our reputation still run the business: honest diagnostics, straight pricing, and work we stand behind. Concord homeowners who were burned by a previous contractor come to us because we tell them the truth about what their system needs, even when that means a smaller repair instead of a bigger sale.

  • Licensed & Insured HVAC Contractor
  • Family-Owned Since 1992
  • Free Estimates Available
  • Financing Available with approved credit
  • We Service All Makes and Brands