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Claim Your Free PageAbout J & Z
J & Z HVAC Fremont has earned a reputation for honest, reliable heating and cooling service across the Bay Area. With 8 verified client reviews averaging 4.5 stars, this contractor delivers what many larger companies struggle to provide: transparent communication and quality workmanship. Operating from Fremont, J & Z serves surrounding communities including Newark, Union City, and Hayward, bringing professional HVAC solutions to residential customers throughout the Tri-City area.
What distinguishes J & Z from competitors is their straightforward, no-pressure approach to every job. Multiple reviewers specifically praised the technician's willingness to explain all available options before any work begins, ensuring homeowners feel informed and confident in their decisions. From AC installations in newly renovated homes to heating repairs on units over three decades old, the team handles every task with equal attention and care.
Customers consistently highlight specific positive experiences with J & Z's service team. One reviewer described a heater repair completed in under an hour, while another noted their AC installation was arranged within just two days of the initial call. The technician's professionalism included thorough cleanup after completing work, a detail mentioned across multiple five-star reviews from satisfied clients.
What Customers Say
Seven of eight reviews award five stars, with customers specifically praising transparent pricing, same-day response times, and the technician's patience in explaining repair options. The lone one-star review contains no substantive feedback beyond a single phrase, and other reviewers use terms like HONEST WORK and quality product to describe their experience.
Working Hours
| Sunday | 7 AM–8 PM |
| Monday | Open 24 hours |
| Tuesday | 7 AM–8 PM |
| Wednesday | 7 AM–8 PM |
| ThursdayToday | 7 AM–8 PM |
| Friday | 7 AM–8 PM |
| Saturday | Closed |
Services
Air Conditioning Installation
Professional AC installation for newly renovated homes and replacements, completed within 2 days of scheduling.
AC Repair & Maintenance
Diagnosis and repair services for air conditioning problems, with same-day service available for emergencies.
Heating Repair
Heating system repairs including older units. One reviewer had a heater repaired in under an hour.
System Diagnosis & Options Consultation
Transparent diagnostic service where technicians explain all available repair options to homeowners.
Residential HVAC Service
Homeowner-focused service covering all residential heating and cooling needs, with careful attention to cleanliness.