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Your Trusted HVAC Partner for Commercial & Industrial Solutions
At Nielsen Mechanical Contractors, we have dedicated ourselves to becoming the premier HVAC mechanical contractor across the Front Range, serving clients from Fort Collins to Pueblo. With over 50 years of combined experience, our team specializes in commercial and industrial HVAC solutions, offering custom-designed systems tailored to the unique needs of businesses in sectors such as healthcare, education, hospitality, and manufacturing. Our commitment to ongoing training, factory certification, and technical excellence ensures that every installation, repair, and maintenance project meets the highest standards of quality and efficiency.

We pride ourselves on supporting the growing commercial economy in El Paso County and beyond, delivering reliable service that prioritizes customer satisfaction. From rooftop units and kitchen exhaust systems to clean-room HVAC and refrigeration design, our expertise spans a wide range of environments, ensuring optimal comfort and operational performance for every client.
Services
Commercial HVAC Kitchen Ventilation Sheet Metal Fabrication Maintenance Programs Refrigeration Systems
Highlights and features
  • We offer over 50 years of experience in commercial HVAC solutions.
  • Our team is highly trained with ongoing education and factory certifications.
  • We provide custom HVAC designs tailored to specific business environments.
  • We serve clients throughout the Front Range, including Colorado Springs and Denver.
  • Our commitment to quality ensures maximum comfort and efficiency for all clients.
Services
Commercial Heating & Cooling
We design and install custom HVAC systems for commercial buildings, including rooftop units, split-system air handlers, and infrared heating. Our solutions ensure energy efficiency and consistent climate control for businesses of all sizes. With expert technicians and factory-certified parts, we guarantee reliable performance tailored to your operational needs.
Kitchen Ventilation
Our team installs specialized kitchen hoods, grease ducts, and exhaust systems for restaurants and food service establishments. These systems maintain air quality, comply with safety regulations, and prevent heat buildup. We also provide maintenance to ensure long-term functionality and compliance with health standards.
Sheet Metal Fabrication
We create custom sheet metal components and ductwork for commercial construction projects. Our fabrication ensures precise fit, durability, and optimal airflow in HVAC systems. This service supports efficient climate control and meets the structural demands of large-scale buildings.
Maintenance Programs
Our preventative maintenance plans extend the lifespan of HVAC systems through regular inspections, filter replacements, and performance checks. This proactive approach reduces breakdowns, maintains efficiency, and preserves manufacturer warranties for commercial clients.
Refrigeration Systems
We design and service refrigeration systems for commercial applications, including walk-in coolers, freezers, and industrial cooling units. Our systems ensure temperature stability for food storage, medical facilities, and manufacturing processes, with 24/7 support for critical operations.
Questions
What areas do you serve?
We serve the entire Front Range, including Colorado Springs, Denver, El Paso, Douglas, Pueblo, and Teller counties.
Do you offer maintenance programs?
Yes, we provide preventative maintenance plans to keep HVAC systems running efficiently and extend their lifespan.
What types of HVAC services do you provide?
We specialize in commercial and industrial HVAC installation, repairs, kitchen ventilation, refrigeration, and custom system design.
Are your technicians certified?
Our team undergoes ongoing training and holds factory certifications to ensure technical expertise and compliance.
Can you handle large-scale projects?
Yes, we have over 50 years of experience managing complex HVAC projects for commercial and industrial facilities.
How do I request a service?
Contact us via phone or email to schedule an appointment or request a bid for your HVAC needs.
Reviews (1)
Rhys & Sarah Ackart
Jun 06, 2021 Report
I will only use Nielsen for my AC/furnace needs. They are very responsive and 100% honest. I had a different company come and try to take advantage of me and charge $6000 for a new AC unit. Micah came and thoroughly looked at everything- turns out I just had a frozen coil. He was patient and answered all of my questions and confirmed that my unit looked good. They are the best! Thanks again!