Serving DFW since 2005

Alliance Mechanical Services

Preventive Maintenance

Service and Repair

Installation and Retrofit

Refrigeration

Our Services

We are your Strategic Partner for Commercial HVAC

Preventive Maintenance

Structured PM programs that reduce unplanned downtime and extend equipment life across your commercial portfolio. Alliance designs custom maintenance plans tailored to your equipment, operating schedule, and budget—because every facility is different.

Service and Repair

Rapid-response diagnostics and repair for all major commercial HVAC brands, minimizing disruption to your operations. Alliance’s factory-trained technicians deliver fast, reliable service 24/7, with one goal: get your systems back online.

Construction & Replacement

From RTU replacements to ground-up mechanical systems, Alliance delivers turnkey commercial installations on time and on spec. Upgrading to modern, high-efficiency equipment can reduce energy costs by 15–30% and maximize indoor space.

Commercial Refrigeration

Installation, service, and preventive maintenance for walk-in coolers, freezers, reach-in cases, and process cooling systems. Our certified technicians protect your perishable inventory around the clock.

Strategic HVAC Success Partner

We are not just an HVAC business – we are a partner for your company’s success. Alliance Mechanical Services leverages superior commercial HVAC services and decades of field experience to deliver measurable outcomes for every facility we serve.

Operating Cost Control

Structured maintenance programs prevent costly emergency breakdowns and reduce your total cost of ownership. Well-maintained, efficient equipment lowers utility bills and eliminates surprise repair invoices.

Energy Efficiency & Sustainability

Properly maintained commercial HVAC systems consume significantly less energy – we help you find and capture those savings. High-efficiency RTUs alone can cut HVAC energy use by 15–30%, supporting your sustainability targets and improving your bottom line.

Air Quality & Comfort

Clean coils, high-efficiency filtration, and routine system checks remove airborne pollutants, protecting employees, sensitive equipment, and perishable inventory. Maintaining safe indoor air quality is a core component of every Alliance service agreement.

Productivity & Reliability

Reliable climate control keeps your workforce comfortable and focused – HVAC failures cost more than repair bills. Alliance’s proactive approach prevents unexpected breakdowns and supports continuous operations.

Why Alliance?

The Alliance Mechanical Services has an unwavering dedication to delivering the highest quality product to our customers and giving back to our neighbors and surrounding communities. We’re committed to utilizing our responsibility as an employer and builder to provide the highest standards for ethics, quality and safety. Our commitment extends into the communities in which we work, and the families who live there as well.

Trusted by DFW’s Leading Commercial Operations

Keith Kinsley

Harland Clarke

Their quality and skilled technicians are professionals who care about their company and the clients they service. The entire team is compiled of individuals who are proud of what they do.

Greg Wren

Ameripac

The entire staff is professional and care about their customers. I am pleased with Alliance’s performance / service and would refer this HVAC contractor to any building owner who wants to make sure their HVAC equipment is being taken care of.”

Dan Powers

Children's Advocacy Center of Collin County

“They are quick to respond to service calls and do their best to accommodate us in every way they can. I would recommend Alliance Mechanical Services, to anyone who is looking for an ethical commercial HVAC Contractor.”

Mark Wayland

DMG MORI USA

“Alliance has been a great company to work with. The field technicians are knowledgeable and professional. The office staff are responsive and professional. I’ll refer Alliance to any organization looking for a good HVAC partner”

Allen Jenkins

Hitachi High-Tech America

“They do an excellent job and we are very happy with their service. They do quarterly preventive maintenance to our HVAC units and repairs as well. Their staff is outstanding.”

Rich Stoller

Midwest Food Bank Texas Division

“Your service over the years and the peace of mind it provides all of us at the MFB is wonderful. It is great to know that the thousands of dollars’ worth of fresh and frozen food we may have at any one time in our coolers is being protected by your team of technicians.”

Join the Team!

Our people are our most important asset. Alliance Mechanical Services is always looking for experienced commercial HVAC technicians and professionals who share our commitment to character, craft, and excellence.

Core Values

People First

We serve with humility and respect. We build relationships that last.

Excellence in Motion

We bring our best to every detail, every time.

Integrity Without Exception

We do what’s right, especially when no one’s watching.

Quality You Can Count On

Good enough is never good enough.