Commercial HVAC Service
Expert diagnostics and repair for rooftop units, chillers, boilers and make-up air systems.
Explore service →
WSM-MEPService | ConstructionRequest Service →
Oklahoma commercial service
Commercial HVAC
& plumbing service.
Built on 80 years of commercial experience. WSM-MEP brings responsive HVAC and plumbing service to the facilities Oklahoma depends on.
Locally ownedSince 1946Generations of
serving Oklahoma
serving Oklahoma
1946Established in Oklahoma
80Years of experience
24/7Emergency response
Comprehensive commercial solutions
Service you can count on.
Systems you can depend on.
Commercial Plumbing
Responsive support for piping, fixtures, backflow prevention, drains and water heaters.
Explore service →Planned Maintenance
Proactive programs designed to reduce downtime, extend equipment life and control costs.
Explore service →24/7 Emergency Response
A dependable service partner when critical building systems simply cannot wait.
Explore service →Equipment Replacement
Commercial replacement options when aging or failed equipment is no longer practical to repair.
Explore service →Our heritage
A commercial partner built on experience.
Since 1946, WSM-MEP has been a trusted name in commercial mechanical installation. For eight decades, we have built lasting relationships by delivering quality, integrity and performance on every project.
Explore our history →
New service department
Dedicated support for commercial facilities.
Our new department is built around the real-world needs of facility teams. From routine maintenance to urgent repairs, experienced professionals help protect your uptime and your investment.
Request Service →
Why WSM-MEP?
One standard. Every service call.
Commercial expertise
Decades of installation experience across demanding commercial systems.
Clear communication
Prompt updates and practical answers at every step of the service call.
Oklahoma roots
Locally owned since 1946, with generations invested in doing the right thing.
One accountable team
HVAC and plumbing expertise working together to keep facilities performing.
Ready when your facility needs us
Tell us what is happening.
Share the issue, facility and level of urgency. Your email application will open with the details prepared for WSM-MEP.
24/7 emergency response405.515.8200Regular service hours: Monday–Friday · 7:00 AM–5:00 PM