Business Details
Emergency
services
Open 24/7
always available
Expert HVAC Services in Denver, CO
Armstrong Heating & Air Conditioning has served the Denver Metro area for 39 years, delivering comprehensive HVAC solutions for residential and commercial clients. Our NATE-certified technicians specialize in heating and cooling system installation, repair, and maintenance, including water heaters, ductless options, and indoor air quality improvements. We prioritize customer satisfaction through 24/7 emergency services, transparent pricing, and partnerships with industry-leading manufacturers.Our team ensures efficient project execution with minimal disruption, offering flexible financing options to meet diverse needs. With a focus on innovation and reliability, we serve Parker, Aurora, Centennial, Lone Tree, Highlands Ranch, and Castle Rock, CO, providing tailored solutions that enhance comfort and reduce energy costs.
Services
Heating Repair
Air Conditioning Repair
Water Heater Services
Commercial HVAC
Indoor Air Quality
Highlights and features
- 39 years of experience in HVAC services across Denver Metro
- 24/7 emergency repair available for urgent heating/cooling needs
- NATE-certified technicians ensure industry-leading expertise
- Financing options available for residential and commercial projects
- Serves 25+ Front Range communities including Parker and Aurora
Associations and certifications
- NATE Certified
What people say
Reliable service
Prompt emergency response
Professional technicians
Cost-effective solutions
Excellent customer service
Services
Heating Repair
Our NATE-certified technicians provide comprehensive heating system repairs for furnaces, boilers, and heat pumps. We diagnose issues like pilot light failures, thermostat malfunctions, and heat exchanger problems, ensuring efficient operation. With 39 years of experience, we complete repairs swiftly to restore comfort during Colorado's coldest months.
Air Conditioning Repair
We offer expert air conditioning repairs for residential and commercial properties, addressing refrigerant leaks, compressor failures, and thermostat issues. Our team uses advanced diagnostic tools to identify problems quickly, minimizing downtime. With same-day service available, we ensure optimal cooling performance during Denver's summer heat.
Water Heater Services
Our specialists handle all water heater types, including tankless, gas, and electric models. Services include leak repairs, element replacements, and complete system installations. We address common issues like insufficient hot water, unusual noises, and rising energy bills, extending equipment lifespan through preventive maintenance.
Commercial HVAC
We provide tailored HVAC solutions for commercial facilities, including system design, installation, and preventive maintenance. Our team addresses unique challenges like refrigerant leaks, dirty coils, and ventilation issues. With 24/7 emergency service, we minimize business downtime while optimizing energy efficiency for offices, restaurants, and industrial spaces.
Indoor Air Quality
Our IAQ specialists install and maintain air purification systems, UV lights, and humidity control solutions. We address contaminants from carpets, cleaning products, and pets using technology from Aprilaire and Honeywell. These systems reduce allergens and improve respiratory health while integrating seamlessly with existing HVAC equipment.
Questions
What HVAC services do you offer?
We provide heating/cooling repairs, water heater services, commercial HVAC solutions, indoor air quality improvements, and 24/7 emergency service across Denver Metro.
Do you offer emergency HVAC service?
Yes, our 24/7 emergency repair service covers Parker, Aurora, Centennial, and surrounding areas for urgent heating and cooling needs.
Which areas do you service?
We serve 25+ Front Range communities including Denver, Boulder, Castle Rock, Highlands Ranch, and Lone Tree.
Do you have financing options?
Yes, we offer HVAC financing solutions to help customers manage system replacements or major repairs.
How can I schedule an appointment?
Call 720-851-1691 or use our online booking system to schedule service at your convenience.
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Reviews (2)
Sharon Luhrs
Nov 30, 2017
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Bryan was great! Very willing to do what it took to get our heat on & provided great service. Bryan gave us a contact # for questions & if our heat went out or something came up. Bryan's excellent service, prompted us to sign a year service contract with L & L. Bryan worked hard & communicated what needed to be done immediately & did not charge us until he knew our furnace was cleaned, repaired & working to our satisfaction! A true professional! And to think we heard your ad on a radio show!
John Dovenbarger
Mar 08, 2017
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Very professional and crew was on time and respectful of my client's premises. Best pricing of all the bids we received and were able to rush permits and get the job done with very short notice. Thank you Phil Martinez and L&L Heating & Air Conditioning! You guys are at the top of the list for The Dream Home Team at Your Castle Real Estate!
