Business Details
31 Years
experience
Emergency
services
Your Trusted HVAC Partner in Englewood, CO
All Temperatures Controlled has been a trusted name in HVAC services since 1995, founded by brothers Dave and Don Dempster. Our family-owned business prioritizes personalized service and quality workmanship tailored to Colorado's climate challenges. With over three decades of combined experience, we specialize in residential and commercial heating, cooling, and indoor air quality solutions. Our team provides 24/7 emergency support and preventive maintenance programs to ensure long-term system efficiency. We serve Denver and surrounding communities, offering customized HVAC installations, repairs, and refrigeration services for both homes and businesses. 
Services
HVAC Installation
Emergency Repairs
Preventive Maintenance
Indoor Air Quality
Commercial Refrigeration
System Diagnostics
Energy Efficiency
Ice Machine Service
Details
- Year established: 1995
Highlights and features
- 30+ years of combined HVAC expertise from family-owned operations
- 24/7 emergency service with rapid response times
- Customized preventive maintenance programs for system longevity
- Energy-efficient installations reducing utility costs by up to 50%
- Certified technicians servicing all commercial refrigeration brands
What people say
24/7 emergency service
30+ years experience
Certified technicians
Energy savings
Family-owned
Services
HVAC Installation
Professional installation of residential and commercial heating, ventilation, and air conditioning systems. Our technicians ensure proper sizing and configuration for optimal energy efficiency. Backed by manufacturer warranties and 30+ years of installation expertise.
Emergency Repairs
Round-the-clock emergency HVAC repair services for urgent system failures. Rapid response times with certified technicians available at (303) 973-6691. Guaranteed same-day service for critical heating/cooling issues.
Preventive Maintenance
Customized maintenance programs extending HVAC system lifespan while reducing energy costs by up to 50%. Includes bi-annual inspections, filter replacements, and refrigerant level checks. Priority scheduling for PMA customers.
Commercial Refrigeration
Specialized repair and maintenance for commercial refrigeration units including Delfield, True, and Turbo Air brands. 24/7 service for restaurants, grocery stores, and industrial facilities across the Denver metro area.
Indoor Air Quality
Comprehensive indoor air quality assessments and purification system installations. Services include air balancing, filter replacements, and humidity control solutions for healthier residential and commercial environments.
People
Dave Dempster
Co-Founder
Co-founder with 30+ years of HVAC industry experience. Oversees technical operations and quality control for residential installations. Committed to maintaining family business values through personalized client relationships.
Don Dempster
Co-Founder
Co-founder managing commercial service operations and emergency response teams. Leverages deep local knowledge to develop customized climate control solutions for Denver businesses since 1995.
Questions
What HVAC services do you offer for residential customers?
We provide complete residential HVAC solutions including installation, repair, and preventive maintenance for heating, cooling, and indoor air quality systems.
Are emergency HVAC services available after hours?
Yes, our 24/7 emergency service responds to urgent heating and cooling issues with guaranteed same-day repairs.
Do you service commercial refrigeration equipment?
We specialize in commercial refrigeration repair and maintenance for major brands like Delfield, True, and Turbo Air across Denver.
What are the benefits of preventive maintenance agreements?
PMAs extend system lifespan, reduce energy costs by up to 50%, and include priority scheduling with discounted parts and services.
Which areas do you serve?
We serve Denver, Englewood, and the entire Front Range region with both residential and commercial HVAC solutions.
