Our Work in Tucson
For over six decades, we’ve been the trusted choice for HVAC solutions across Southern Arizona. See the projects that define our quality.
Desert Villa AC Overhaul
Complete replacement of a 20-year-old system with a high-efficiency, variable-speed unit for a historic Tucson home.
- 18 SEER Rating
- Zoned Cooling
- Smart Thermostat
Downtown Office Heating Upgrade
Commercial furnace installation for a three-story office building, ensuring consistent warmth during winter.
- 98% AFUE Furnace
- Commercial Ductwork
- Energy Recovery Ventilator
Annual Maintenance Program
Scheduled preventive care for a community center, preventing mid-summer breakdowns.
- Bi-Annual Service
- Filter Replacements
- Coil Cleaning
Emergency Nighttime Repair
Rushed response to a failed compressor on the hottest night of the year for a family with young children.
- Same-Night Service
- Compressor Replacement
- System Restored
Whole-House Air Purification
Installation of a multi-stage air filtration and humidification system for a household with severe allergies.
- UV-C Light
- HEPA Filtration
- Humidity Control
Retail Store HVAC Retrofit
Energy-efficient system redesign for a local boutique, reducing utility costs by 30%.
- VFD Controls
- Demand-Controlled Ventilation
- Updated Thermostats
Ready to Start Your Project?
Call us directly to discuss your HVAC needs. Our team is ready to provide a free, no‑obligation estimate.
or email service@dandhhvac.com
Mon–Fri 7:00 AM – 7:00 PM | Sat 8:00 AM – 4:00 PM