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29 Years
experience
Emergency
services
Trusted HVAC Solutions in Golden Valley, MN
Founded in 1997, Midwest Mechanical Solutions has established itself as a leader in engineered HVAC solutions for commercial and industrial clients. Our team of experienced sales engineers, product specialists, and support staff follows a proven five-step process to deliver tailored systems that optimize efficiency and cost-effectiveness. We prioritize lifelong relationships with building owners, consulting engineers, and contractors, ensuring solutions align with project requirements. Our commitment to innovation is reflected in our exclusive representation of over 75 high-quality manufacturers, providing flexibility in design and world-class options. With dedicated service departments offering factory-trained technicians, preventive maintenance, and emergency support, we ensure systems operate at peak performance.

Our leadership team remains actively engaged in sales to maintain direct customer connections. We specialize in sustainable design, industrial refrigeration, and advanced technologies like variable refrigerant flow systems and building automation. Our technical expertise extends to cooling towers, hydronic pumps, and specialized HVAC applications for food and beverage facilities. Backed by decades of experience and a focus on continuous improvement, we guarantee reliable, code-compliant solutions. Our comprehensive approachfrom discovery to after-sale supportensures client satisfaction across Minnesota, North Dakota, and Wisconsin.
Services
HVAC System Design Building Automation VRF Systems Cooling Tower Maintenance Industrial Refrigeration Preventive Maintenance Emergency Repairs Equipment Replacement Energy Efficiency Solutions Food & Beverage HVAC
Details
  • Year established: 1997
Highlights and features
  • We implement a patented five-step process for optimal system design and cost savings.
  • Our team includes factory-trained technicians for specialized HVAC maintenance and repairs.
  • We exclusively represent 75+ high-quality HVAC manufacturers for flexible solutions.
  • Our leadership team remains on the sales floor for direct customer engagement.
  • We offer 24/7 emergency service with scheduled maintenance programs for equipment longevity.
Services
HVAC System Design
Our five-step HVAC design process begins with project discovery and conceptual planning. We collaborate with engineers to select equipment meeting building codes and efficiency goals. Final specifications include performance schedules and operational sequences for optimal system integration.
Building Automation
We implement advanced building automation systems for climate control and energy management. Our solutions integrate with existing infrastructure to improve efficiency while maintaining occupant comfort through precise temperature and humidity regulation.
Industrial Refrigeration
Specialized refrigeration services include ammonia and CO2 cascade systems for food processing facilities. We design low-temperature solutions down to -50F with hygienic air handling and process cooling capabilities for critical environments.
Cooling Tower Maintenance
Factory-trained technicians provide preventive maintenance and emergency repairs for industrial cooling towers. Our services extend equipment lifespan while ensuring compliance with safety standards and operational efficiency requirements.
Preventive Maintenance
Scheduled maintenance programs include equipment inspections, part replacements, and performance optimizations. These services maximize system longevity, prevent unexpected failures, and maintain manufacturer warranty compliance for commercial HVAC installations.
People
Bret Riemenschneider
Partner / President
With over 25 years in HVAC leadership, Bret oversees strategic operations while maintaining direct client relationships through active sales team participation.
Joel Harmer
Partner / Director of Sales & Marketing
Joel leads marketing initiatives and sales strategy, leveraging industry expertise to connect clients with innovative HVAC solutions tailored to their operational needs.
Mark Muhlstein
Partner / CEO
As CEO, Mark drives company vision and growth, ensuring technical excellence in system design while maintaining focus on customer satisfaction and team development.
Mark McCollough
Partner / COO
Mark manages daily operations, coordinating project execution from design to installation while maintaining quality control across all service departments.
Randy Schock
Partner / ESS Manager
Randy oversees IT infrastructure and engineering support systems, ensuring technological advancements enhance service delivery and client project management capabilities.
Questions
What HVAC services do you offer?
We provide full-cycle HVAC solutions including system design, installation, preventive maintenance, emergency repairs, and energy efficiency optimization for commercial and industrial clients.
Do you offer 24/7 emergency service?
Yes, our emergency service team responds after hours with a dedicated line at 952.738.6216 for urgent HVAC system issues.
Which areas do you serve?
We serve Minnesota, North Dakota, and Wisconsin with headquarters in Golden Valley, MN, and regional offices in Fargo, ND and Chippewa Falls, WI.
What makes your HVAC solutions unique?
Our patented five-step process combines technical expertise with 75+ manufacturer partnerships to deliver customized systems that balance efficiency, code compliance, and budget requirements.
Do you handle industrial refrigeration systems?
Yes, we specialize in industrial refrigeration including ammonia, CO2 cascade systems, and low-temperature solutions down to -50°F for food processing and storage facilities.
How do you ensure system longevity?
Through scheduled preventive maintenance programs that include equipment inspections, part replacements, and performance optimizations to extend HVAC system lifespan.