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Claim This BusinessConnolly Heating and Air Conditioning has served Pacheco and the surrounding Contra Costa County communities for over two decades, building a reputation on consistent 5-star service reflected in 264 client reviews. The family-owned contractor holds state licensing and maintains a strong presence across cities including Concord, Danville, San Ramon, and Pleasanton, delivering both residential and light commercial HVAC solutions. Their weekday availability from 8 AM to 4:30 PM accommodates standard service schedules, with response practices that exceed typical business-hour boundaries when customer needs arise.
What distinguishes Connolly from regional competitors is their Carrier factory partnership and their commitment to transparent, low-pressure consultations. The company offers 0% financing through GoodLeap with 12-month deferred interest for approved applicants, making new system installations more accessible. Their service catalog extends beyond standard heating and cooling into indoor air quality solutions including dehumidifiers and advanced air filtration systems, plus zone control technologies that address the diverse climate needs of homes throughout the Diablo Valley region.
Customer testimonials consistently identify specific team members who deliver exceptional experiences. Technician Brian earned praise for patient, pressure-free explanations of heat pump options during a month-long heating outage. JT demonstrated remarkable responsiveness, arriving the same day to install a replacement water heater within 90 minutes. Installers JT and Justin navigated unexpected challenges in an older home, completing a two-day heat pump and furnace installation while maintaining meticulous cleanup standards. These named encounters illustrate why reviewers characterize Connolly as trustworthy, fair, and professional.
All 264 reviews award 5 stars, with multiple reviewers specifically naming technicians Brian, JT, and Justin for their expertise and customer care. The most frequently cited themes include same-day emergency response, fair pricing, and professional installation in older homes.
| Sunday | Closed |
| Monday | 8 AM–4:30 PM |
| Tuesday | 8 AM–4:30 PM |
| Wednesday | 8 AM–4:30 PM |
| ThursdayToday | 8 AM–4:30 PM |
| Friday | 8 AM–4:30 PM |
| Saturday | Closed |