POWERED BYINTEGRITY,PRIDE IN EVERYPROJECT.
Professional HVAC installation, air duct cleaning, and large-scale mechanical projects across Missouri and beyond.
We Discuss Every
Detail Before
We Begin.
RMB Mechanical is a St. Louis–based HVAC and mechanical contractor trusted by homeowners, commercial developers, and large-scale construction teams. From a residential duct cleaning to a $1.7 billion government facility, we bring the same commitment to every project.
No surprises, no shortcuts. Our certified team walks you through every step — scope, cost, and timeline — before a single tool is picked up.
Comprehensive HVAC Services
From commercial offices to million-square-foot facilities — we have the expertise and capacity to handle any mechanical project.
Our Work Speaks
for Itself
All 10 ProjectsThe RMB Process
Consult
We assess your space, understand your requirements, and evaluate the full scope of work before anything begins.
Plan
We design the system, select the right equipment, and present a transparent, itemized quote — no surprises.
Execute
Our certified crew installs with precision and care, on schedule and in full compliance with all codes.
Deliver
We test every component, certify the system, and hand it over only when it meets our standards.
Why Contractors & Homeowners Choose RMB
Transparent Pricing
We discuss every detail before work begins. You know the full cost, scope, and timeline upfront.
On-Time, Every Time
We coordinate tightly with general contractors and clients to hit every milestone without exception.
Industry Certified
Every technician is trained, certified, and current — bringing the highest standard to every job.
Any Project Scale
From a single-family home to a large-scale government facility — we have the crew, equipment, and experience.
Two Regional Offices
Headquartered in Hazelwood, MO with a Mid-Atlantic office in Philadelphia, PA — wherever your project is.
Community First
From BUD Pre-Apprenticeship to Building Futures, we invest in the communities and trades that sustain us.
Investing in Our
Community
At RMB Mechanical, we believe in giving back to the communities we serve — through mentoring, volunteering, and supporting the trades that build our future.
- SMACNA Board Membership
- BUD Pre-Apprenticeship Program
- Missouri Women in Trade
- Building Futures Volunteer Program
Ready to Start
Your Project?
Contact our team for a consultation. We’ll discuss every detail so you know exactly what to expect before we begin.