Mumler Mechanical - Celebrating 80 years logo

Commercial HVAC & Mechanical Contractors Serving Michigan

Design, installation, maintenance, piping, fabrication, and emergency service for commercial and industrial facilities.

Person wearing protective gloves and dark clothes holding a large, flat, white sheet or panel over a wooden pallet in an industrial setting.

HVAC sheet metal

Complex arrangement of insulated HVAC pipes including white, black, and orange pipes with valves and connectors in an industrial mechanical room.

HVAC Piping Systems

Industrial mechanical room with insulated metal pipes, valves, pressure gauges, blue heat exchangers, and electronic control units mounted on metal supports.

Heating systems

Multiple large white industrial air conditioning units with circular fans on top, connected by pink and metallic pipes in an outdoor facility.

Cooling systems

Two large industrial ventilation fans with metal ductwork connected to the exterior of a building with many windows and metal siding.

Ventilation systems

Two men in a factory or industrial setting reviewing documents, one in a white hard hat with a white shirt and tie, the other in an orange hard hat and black work jacket with yellow ear protection around his neck.

Design/Build

Two construction workers wearing white hard hats and safety vests discussing a project while looking at a laptop on a scaffold inside a building under construction.

Design assist

Three people in dark clothing working together at a desk with architectural plans, holding a compass, pens, a calculator, and a yellow pencil, with a yellow construction helmet and rolled-up documents nearby.

Cost Plus GMP

Ceiling view of an industrial space showing large white cylindrical HVAC air ducts with vents, structural beams, pillars, and hanging string lights.

HVAC Engineering

Two construction workers wearing orange safety vests discuss a project shown on a large monitor displaying a split screen with a building interior photo on the left and a colorful 3D structural model of a gymnasium on the right.

VDC/BIM

Aerial view of a landscaped courtyard with concrete paths, green grass patches, trees, and shrubs beside a modern building. A rooftop deck with wooden flooring has people sitting at a table and a person standing at the railing. Two people walk toward the building entrance along a path.

LEED / Green Building

Two workers wearing hard hats, one in a yellow helmet and black shirt, the other in a white helmet and red shirt, repairing or maintaining an outdoor air conditioning unit on a rooftop.

Emergency HVAC service

1946
Year established
0.69
Safety EMR
4
Signatory unions
1
Michigan based team

Complete Mechanical Solutions

Mechanical Construction & Project Delivery

We deliver full-scope mechanical construction services for commercial projects, including HVAC piping, sheet metal fabrication, and tenant improvements. Our team executes complex installations.

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HVAC Engineering
& Design

We provide engineering-driven HVAC solutions that support projects from concept through construction. Our team delivers system design, VDC/BIM coordination, plan/spec support, and design-build services.

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Commercial HVAC
Systems & Service

We install, maintain, and service commercial heating and cooling systems to keep facilities running efficiently. From system installs to emergency service and building automation, our team supports long-term performance.

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Why Choose Us

Built On Experience. Focused On Results.

Red calendar icon featuring a rectangular shape with two rings at the top and six square date markers inside.

80 Years of Experience

Red line art icon showing three abstract human figures grouped together, representing a team or workforce.

Union-Trained Workforce

Red line art of a rolled blueprint with a simple floor plan and a pencil underneath.

Engineering & Design Expertise

Red four-blade fan icon with rounded blades arranged around a central circle.

Commercial HVAC Specialist

Red clock face with hour and minute hands set to about 11:05 and the number 24 partially encircling the bottom right of the clock, symbolizing 24-hour service or availability.

Emergency Service Response

Red shield icon with a white checkmark in the center symbolizing safety and protection.

Safety First
Culture

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RECENT PROJECTS

Proven Performance

Manufacturing Facility
HVAC Upgrade

Pontiac, MI

Commercial Office
Renovation

Detroit, MI

Industrial Piping
Installation

Warren, MI

Let's build something great together

Our Michigan Service Locations

Headquarters:

6260 18-1/2 MILE ROAD
STERLING HEIGHTS, MI 48314

(586) 731-0028
info@bumlermech.com
Detroit Location:

1001 woodward ave. Suite 500
Detroit, MI 48226
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