Zimmermann Air Conditioning & Heating
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About Zimmermann Air Conditioning & Heating
Zimmermann Air Conditioning & Heating maintains a 4.9-star rating across 1,165 Google reviews, positioning it among the most reviewed HVAC contractors in San Antonio. The company operates Monday through Saturday from 8 AM to 8 PM, providing residential air conditioning and heating services throughout the San Antonio metro area. This volume of customer feedback reflects years of sustained service delivery to Texas homeowners.
Customer reviews reveal that Zimmermann handles same-day service requests and accommodates urgent situations. Multiple reviewers describe experiences with technicians who performed diagnostic assessments, explained repair options clearly, and completed repairs within the same day. The company also handles larger projects including complete attic ductwork replacement, with reviewers noting they proceeded without seeking competing bids.
Technicians named in positive reviews include Terry, who performed diagnostic work and explained issues to customers, and Luke, who led ductwork replacement projects. Reviewers describe these team members as professional, knowledgeable, and responsive. One reviewer mentions a winter storm situation where the team addressed HVAC issues on short notice.
What Customers Say
Positive reviewers consistently mention same-day service responsiveness and technician expertise in diagnostics and repairs. The three-year customer relationship mentioned by one reviewer suggests recurring service for maintenance. Negative feedback centers on after-hours availability and a new installation experiencing early failures, contrasted against multiple reviews praising quality repairs and maintenance.
Working Hours
| Sunday | Closed |
| Monday | 8 AM–8 PM |
| Tuesday | 8 AM–8 PM |
| Wednesday | 8 AM–8 PM |
| Thursday | 8 AM–8 PM |
| Friday | 8 AM–8 PM |
| SaturdayToday | 8 AM–8 PM |
Services
AC Repair
Diagnosis and repair of cooling system failures including compressor issues, refrigerant leaks, and electrical component problems.
AC Maintenance
Annual tune-ups and preventive inspections ensuring system efficiency and extending equipment lifespan.
AC Installation
Full system replacement and new installation services with warranty protection and professional setup.
Heating Repair
Repair services for heating systems including winter emergency breakdowns and component replacements.
Heating Installation
New heating system installation with equipment recommendations and professional installation.
Emergency Service
24-hour availability for urgent HVAC failures regardless of day or time, with same-day response.
Thermostat Installation
Smart thermostat setup including Ecobee installations with configuration and user training.