Performing Services on a commercial chiller system

CASTLE ROCK COMMERCIAL HVAC INSTALLATION

Proudly Serving CASTLE ROCK, Colorado For Over 55 Years

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Rasmussen Mechanical Services headquarters in Council Bluffs, Iowa, providing boiler rentals and mechanical services to customers throughout Nebraska.

WHO WE ARE

Rasmussen Mechanical Services proudly provides professional commercial HVAC installation in Castle Rock, CO and throughout Douglas County. With over 55 years of experience, our team designs and installs HVAC systems that deliver long-term comfort, energy efficiency, and dependable performance for commercial and industrial facilities.

We serve businesses throughout Castle Rock, Parker, Lone Tree, Highlands Ranch, and the surrounding south Denver metro area. Our technicians have extensive experience in complex commercial environments, ensuring every system meets performance expectations, Colorado building codes, and long-term operational goals.

CONTACT US

Proudly Serving Castle Rock, CO
Office Number: 303-292-1113
24/7 Service Line: 1-800-237-3141
Email: rockymountain@rasmech.com
Address: 15335 E. Fremont Dr. Centennial, CO 80112
Office Hours: Monday – Friday: 7:00am – 4:00pm

New ACL Refrigerant Equipment

COMMERCIAL HVAC SYSTEM INSTALLATION & REPLACEMENT

Rasmussen Mechanical Services specializes in commercial HVAC installation for Castle Rock businesses, including new construction, tenant improvements, system upgrades, and full replacements. We install a wide range of commercial and industrial HVAC equipment, including:

  • Rooftop Units (RTUs)

  • Air Handling Units (AHUs)

  • Make-Up Air Units (MAUs)

  • Commercial Heating Systems

  • Chillers

  • Boilers

  • Building Automation Controls

HVAC TECH Leaning On An AHU

ROOFTOP UNIT (RTU) INSTALLATION

We provide complete rooftop unit installation in Castle Rock for office buildings, retail centers, warehouses, and industrial facilities. Our RTU installation services include proper system sizing, curb and structural coordination, crane planning, equipment placement, and full startup and commissioning to ensure reliable, long-term operation.

AIR HANDLING UNIT INSTALLATION

Our technicians install air handling units designed to meet specific airflow, ventilation, and humidity requirements. AHUs are essential for maintaining consistent indoor comfort and indoor air quality for healthcare facilities, schools, office buildings, and commercial spaces throughout Castle Rock.

These systems are commonly integrated with chillers, boilers, and building automation systems to optimize overall performance.

RTU Install With Tech On Roof

MAKE-UP AIR UNIT INSTALLATION

We install make-up air units for commercial kitchens, manufacturing facilities, and large industrial buildings in Castle Rock. Our team installs both direct-fired and indirect-fired systems to support exhaust systems, maintain proper building pressure, and comply with Colorado ventilation and safety codes.

COMMERCIAL CHILLER INSTALLATION

Rasmussen Mechanical Services provides commercial chiller installation in Castle Rock for facilities that rely on chilled water systems for cooling, including:

  • Office Buildings

  • Healthcare Facilities

  • Manufacturing Plants

  • Institutional & Educational Campuses

Each chiller installation is evaluated as part of the complete HVAC system to ensure proper sizing, energy efficiency, and seamless integration with pumps, air handling units, and automation controls.

Two Techs Working On A Heat Pump

SPLIT SYSTEM & AIR CONDITIONING INSTALLATIONS

Split system and multi-zone HVAC installations provide flexible and efficient heating and cooling for commercial buildings. These systems allow independent temperature control across different areas of a facility.

Our technicians specialize in installing and replacing split and multi-zone systems for Castle Rock commercial properties, delivering reliable performance and long-term efficiency.

COMMERCIAL PROPERTIES

In addition to installation, Rasmussen Mechanical Services provides full-service commercial HVAC support in Castle Rock, including:

  • HVAC repair and troubleshooting

  • Preventative maintenance programs

  • System replacements and upgrades

  • Equipment retrofits

  • 24/7 emergency service

We service RTUs, AHUs, make-up air units, boilers, chillers, split systems, and building automation-controlled systems. Routine maintenance helps reduce downtime, improve efficiency, and extend equipment life.

LOCAL REVIEWS

Three HVAC Technicians in orange safety gear installing metal ductwork and scaffolding inside an industrial building.

“For all of my company’s boiler needs, I won’t go anywhere else. George, Gus, Carrie, they have all the connections that I will ever need, from boilers to automation controls.”
Dale Meyer, Stranahan’s Whiskey Distillery & Cocktail Bar

“Stacey and Aaron have been awesome. Great to work with and really  exceptional with resolving issues. I have 100% confidence with your team. St Julien has found a vendor of choice.”
Ron Gallion, St Julien Hotel & Spa

Stacked chiller cooling system installed by Rasmussen Mechanical Services as part of an industrial mechanical construction project to improve cooling efficiency and system reliability.

YOUR COMMERCIAL HVAC CONTRACTOR IN CASTLE ROCK

Rasmussen Mechanical Services is a trusted provider of commercial HVAC services in Castle Rock, CO. With decades of experience, our team delivers solutions that improve comfort, lower operating costs, and ensure long-term system reliability.

Our commercial HVAC solutions focus on:

  • Lowering energy and operating costs

  • Supporting code compliance

  • Improving airflow and indoor air quality

  • Delivering consistent temperature control

  • Ensuring long-term performance

Businesses throughout Castle Rock and Douglas County rely on our team as a long-term mechanical partner.

Technician in orange hard hat testing and calibrating an electrical control panel during system maintenance at an industrial facility.

BUILDING AUTOMATION INTEGRATION

Modern commercial HVAC systems in Castle Rock benefit greatly from building automation integration, providing centralized system control, improved energy efficiency, and enhanced indoor air quality. This expert HVAC installation approach ensures seamless operation and optimal performance tailored to commercial properties in the Castle Rock area.

Rasmussen Mechanical Services integrates HVAC systems with advanced building automation systems (BAS), allowing the Castle Rock team and facility managers to monitor performance, optimize energy usage, and maintain peak system operation. Our commitment to quality work and unmatched expertise guarantees outstanding results for every commercial HVAC project we handle, helping businesses reduce costly repairs and improve overall comfort and efficiency.

Tech Installing A Heat Pump

COMMERCIAL HVAC SERVICES IN CASTLE ROCK, CO

Regular commercial HVAC maintenance services are essential for keeping your heating, cooling, and air conditioning systems operating efficiently and reliably. Our planned maintenance programs help extend equipment life, reduce costly repairs, and improve overall system performance for commercial properties in Castle Rock.

By scheduling routine maintenance with our expert technicians, Castle Rock businesses can ensure comfortable, efficient building operation year-round, restore comfort quickly when issues arise, and benefit from reliable service that maximizes HVAC system efficiency and indoor air quality. We provide all of our services in Castle Rock such as HVAC Repairs, as well as Boiler Installation and Repair.

SCHEDULE YOUR SERVICE TODAY!

GET THE HELP YOU NEED FOR ALL THINGS MECHANICAL