UPM Mechanical is a Mechanical & plumbing Contractor in Denver Colorado
United is more than a word – it’s how we operate.
UPM Mechanical’s strength lies in our name: United. With extensive years of combined experience, we unite our talents and expertise to deliver exceptional results. As a proud union contractor, our team understands the power of unity, camaraderie, and working together to achieve excellence. We believe we are only as strong as our people – that’s why we lift each other during challenges and celebrate every accomplishment. Our commitment to unity, is in our name and our work, it fuels our success and defines who we are.
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Our Professional Affiliations
Our Mission
What we do:
UPM Mechanical is a full-service contractor specializing in mechanical and plumbing solutions for commercial and industrial properties. We handle maintenance, repair, replacement, and installation of HVAC, refrigeration, process piping, and plumbing systems.
What is UPM?
Uniting People Mechanically
Our Purpose:
Guiding people to unlock their natural talents and abilities by fostering unity, creating positive experiences, and driving toward a shared mission.
Our Mission:
We are relentlessly committed to E5: ensuring exceptional execution in every interaction, every time.
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We Believe In
Upholding the highest industry standards
At the core of our operations lies an unwavering commitment to excellence. In the mechanical construction industry, where precision, safety, and reliability are paramount, we continuously adhere to and exceed industry benchmarks.
Our standards are guided by:
- Rigorous Compliance
- We strictly follow all local, state, and national codes, including ASME, OSHA, and NFPA regulations, ensuring each project meets legal and safety requirements.
- Quality Assurance Protocols
- Through detailed inspections, material verification, and skilled craftsmanship, we deliver systems that perform with integrity and longevity.
- Continuous Training
- Our teams undergo regular training to stay updated with the latest mechanical systems, installation techniques, and technological advancements.
- Sustainability & Innovation
- We integrate energy-efficient practices and innovative solutions that align with modern green building standards like LEED and WELL.
- Client-Focused Execution
- Every project is approached with a mindset of transparency, communication, and accountability—ensuring outcomes that match or exceed client expectations. By setting the bar high, we don’t just build systems—we build trust and long-term partnerships.
By setting the bar high, we don’t just build systems—we build trust and long-term partnerships.
Staying at the forefront of technology
At UPM Mechanical, embracing technology isn’t just about staying current—it’s about delivering smarter, faster, and more efficient solutions that directly serve our clients’ goals. By staying at the forefront of innovation, we ensure that the results are always in our clients best interest.
Here’s how we turn technology into tangible value:
- Advanced Design & Modeling Tools
- We utilize state-of-the-art Building Information Modeling (BIM), 3D CAD, and virtual coordination to streamline design, reduce conflicts, and shorten timelines—saving you time and money.
- Smart Project Management Systems
- Real-time updates, mobile access, and centralized communication help keep every stakeholder aligned and every phase on schedule.
- Precision Fabrication
- With automated fabrication and prefabrication capabilities, we produce highly accurate components off-site, minimizing disruption and installation time on your jobsite.
- Performance Through Data
- From predictive maintenance to system diagnostics, we use smart data tools that maximize mechanical efficiency and long-term ROI.
- Empowered Technicians
- Our field teams are trained in the latest innovations and equipped with modern tools—ensuring high-quality execution from start to finish.
Our commitment to cutting-edge technology isn’t just about being innovative — it’s about delivering exceptional results that support your success, now and into the future.
Forging lasting partnerships by supporting our client's success
At UPM Mechanical, we believe in the value our clients bring to the world. Whether you’re building critical infrastructure, providing essential services, or driving innovation in your field—we recognize that your success has a ripple effect on society. That’s why we make it our mission to keep your business running as efficiently and reliably as possible.
Here’s how we turn projects into partnerships:
- Customer-First Mindset
- We prioritize your vision, budget, and timeline at every stage, ensuring that our work aligns with what matters most to you.
- Proactive Communication
- From kickoff to closeout, we keep you informed with clear, honest updates and collaborative decision-making—no surprises, just solutions.
- Long-Term Support
- Our service doesn’t end when the project wraps. We offer maintenance guidance, system optimization, and ongoing technical support to keep your systems running strong.
- Flexible, Scalable Solutions
- Whether you’re managing new construction, retrofits, or expansions, we adapt our approach to fit your changing needs—today and tomorrow.
- Efficiency that Drives Impact
- We’re not just building systems—we’re helping you maximize productivity, reduce waste, and operate at peak performance so you can focus on making a difference.
- Shared Success, Mutual Growth
- We see every job as a foundation for something bigger. When you thrive, we thrive—and that’s the kind of relationship we invest in.
By believing in what you do and supporting how you do it, we forge partnerships that are grounded in purpose—and built to last.
A fun, safe environment where our employees thrive
At UPM Mechanical, we believe our employees are our greatest asset. The skills, perspectives, and backgrounds that each team member brings help shape who we are—not just as a company, but as a family. Our name, United, reflects the strength we find in unity, and the culture we’ve built around respect, trust, and shared success.
What makes our workplace stand out:
- Safety Is Our Foundation
- We are uncompromising when it comes to safety. From day one, every team member is trained, supported, and empowered to work in a way that protects themselves and their coworkers—because nothing matters more than going home safe.
- Diverse Voices, One Team
- We celebrate the diversity of our workforce, knowing that each individual’s story, experience, and viewpoint contributes to our collective strength. Inclusion isn’t just an initiative—it’s who we are.
- Positive, Supportive Culture
- Whether it’s on the jobsite or at a company event, we foster a work environment built on collaboration, good energy, and mutual respect. We work hard, laugh often, and always have each other’s ba
- Opportunity for Everyone
- From apprentices to leadership, we provide pathways for growth, continuing education, and skill development—so our employees don’t just work here, they build careers here.
- Celebrating the Wins
- We take pride in celebrating personal and team milestones—big or small. Recognition is a key part of how we stay motivated and connected.
When our people feel safe, supported, and seen, they thrive. And when they thrive, so does everything we build together. That’s the United way.
Our Story
Since 2018, our driving force has been the people we wake up every day to serve. We remain grounded in the lessons learned in North Denver, where our founder, Nate Martinez Jr., was taught by his father, Nate Sr., what it means to be a leader who cares and understands the responsibility of leadership. Nate Sr. entrusted his son with the belief that, with the right core values, anything is possible. After Nate Sr.’s passing, Nate Jr. was inspired to carry on his father’s legacy, always guided by the values and foundation his father instilled. This small business mentality remains at UPM’s core, no matter how much we grow. With these lessons passed down through Nate’s leadership to every employee, UPM’s core values were born, driving everything we do today. United, we overcome challenges and United we celebrate every win together.
The word “United” was chosen for our company name because it reflects who we are at our core. It symbolizes the strength of collaboration, teamwork, and bringing people together for a common purpose. Fostering unity is symbolized by our logo’s interlocking gears, representing teamwork and collaboration. Every interaction is a true partnership, beginning with defining what partnership means to the client or individual. At UPM Mechanical, unity is more than just a word—it’s how we operate. We unite our diverse talents, work closely with our clients, and deliver exceptional solutions. We believe that unity strengthens us, enabling us to overcome any challenge and achieve lasting greatness. Beyond our company, we believe in the unity of the world. By leading by example, we aim to inspire those we cross paths with in every area of life. Together, we can create positive change, one connection at a time.
This journey has also been fueled by the inspiration and partnership of Nate’s wife, Danah, who shares his vision and dedication. Together, they lead UPM with their children, Nathan and Audrina, as their driving force. For them, this company is about more than business—it’s about family, legacy, and building a future that their children can be proud of.
We are invigorated and thrilled to bring our expertise to the ever-growing city of Denver. As proud Denver natives, we care deeply about the growth and well-being of the community we’ve called home for generations. The city’s expansion drives us to push our own boundaries, ensuring we continue to deliver top-tier mechanical and plumbing services that contribute to Denver’s success. For us, it’s more than just work—it’s a passionate commitment to the people and city we’ve grown up with and care about. We are motivated and fired up for what the future holds for UPM.
Our Core Values
Accountability
We do what we say we will do, taking responsibility for our actions and persevering until we succeed – regardless of what obstacles we may face.
Leadership
Through genuine care and guidance, we lead with compassion and competence, empowering others and adapting to change.
Integrity
We are people of integrity who can be counted on to always speak and act in an ethical and honest manner.
Vigor
We’re go-getters, driven to take charge and do whatever it takes to crush our goals with discipline, passion and a collaborative spirit.
Excellence
We get the job done right every time by always being prepared, putting in the grind, and leveling up our skills!
Meet Our Leadership Team
Every day, we deliver quality craftsmanship and great customer service. Our commitment is to display integrity, professionalism, and the highest standard of quality in everything we do.
Nate Martinez
CEO
Danah Lovato
Chief of Staff
Ben Trujillo
Manger of Safety, QC & Customer Service
Johnny Casados
Director of Construction
Glen Seela
Service Manager
Matt Carhart
Plumbing Service Manager
Our Services

Mechanical Piping Installation

Sheet Metal Installation

Plumbing Installation

Mechanical & HVAC Retrofit / System Upgrades

Plumbing Retrofit / System Upgrades

HVAC/R Service & Maintenance

Plumbing Service & Maintenance

Process Piping Installation & Retrofit

Fabrication

Energy Management








