WE BUILD IT RIGHT THE FIRST TIME
Dependable Mechanical Solutions for Greenfield’s Growing Infrastructure
Greenfield is expanding across public, healthcare, and commercial sectors, and with growth comes increased demand for reliable mechanical systems. At HMH Contractors, we provide mechanical services that support essential infrastructure across schools, medical facilities, city buildings, and light industrial operations.






AFFILIATIONS & CERTIFICATIONS
















Mechanical Services in Greenfield
HVAC Installation & Retrofitting
Our commercial HVAC systems are tailored to each facility’s size, use, and energy goals. Whether it's a rooftop unit for a school or a zone-based solution for a medical office, we design for comfort and control.
Plumbing Systems
We install and service domestic water lines, storm drainage, sanitary systems, booster pumps, and sewage ejector stations. All work meets Indiana code and is built for durability.
Medical Gas and Healthcare Systems
Clinics and outpatient centers rely on us for medical gas lines, clean HVAC environments, and plumbing designed around patient safety and healthcare compliance.
Emergency Repair & Maintenance
When mechanical systems fail, response time is critical. Our teams are available 24/7 to restore HVAC, plumbing, and piping systems quickly and safely.
Steam, Condensate, and Specialty Piping
We offer high-performance piping systems including steam, chilled water, and condensate recovery. These solutions support process needs and enhance system efficiency in industrial and institutional environments.
Sectors We Serve in Greenfield
Municipal and Public Buildings
From city halls to water treatment facilities, we install mechanical systems that meet public safety and sustainability standards. Our work is done efficiently to minimize disruptions to public services.
K–12 Schools and Education Facilities
We support Greenfield schools with HVAC and plumbing systems that keep students and staff comfortable while meeting energy and air quality standards. Our team can work around academic schedules to avoid interruptions.
Outpatient Clinics and Medical Offices
Our healthcare systems include compliant medical gas piping, low-noise HVAC solutions, and efficient plumbing. We prioritize regulatory adherence and patient safety on every install.
Light Industrial Facilities
For fabrication shops, storage warehouses, and small production plants, we install mechanical systems that support equipment uptime, staff comfort, and OSHA standards.
2,000+
Projects
600+
Job Locations
Why Clients in Greenfield Choose HMH?
Experience in Community-Focused Projects
We’ve worked in schools, clinics, and city buildings — and understand the importance of getting it right the first time. Our systems are designed to support your team and the people you serve.
Reliable Emergency Response
When something breaks, you can’t wait. We respond quickly to system failures with the tools and experience needed to restore operation fast.
Right-Sized Design and Execution
Our systems are customized — no overdesign, no shortcuts. Every component is chosen for its performance, compatibility, and serviceability.
Certified and Code-Compliant Work
We bring ASME R Stamp-certified welding, medical gas expertise, and Indiana-licensed mechanical contractors to every project.
Places We've Served
- Indianapolis
- Carmel
- Westfield
- Fishers
- Speedway
- Beech Grove
- Lafayette
- West Lafayette
- Crawfordsville
- Logansport
- Peru
- Kokomo
- Marion
- Muncie
- New Palestine
- Greenfield
- Lebanon
- Whitestown
- Zionsville
- Greenwood
- Frankfort
- Anderson
- Alexandria
- Elwood
- Tipton
- Noblesville
- Lawrence
- Plainfield
- Avon
- Greencastle
- Shelbyville
- Southport
Trusted by Industry Leaders Across Indiana
Shawn Slater
John
Bonnie Drews
Frequently Asked Questions
What types of mechanical services does HMH Contractors provide?
We offer a full range of mechanical services for commercial and industrial clients. This includes HVAC, refrigeration, plumbing, process piping, boiler services, and pre-construction planning. We also do custom fabrication, design-build projects, and offer ongoing maintenance plans.
Do you specialize in commercial, industrial, or institutional projects?
Yes, we specialize in commercial, industrial, and institutional projects across Indiana.
What is your service area?
We work throughout Indiana, with offices in Kokomo, Indianapolis, and Lafayette.
Do you offer 24/7 emergency services?
Yes, we’re available 24/7 for emergencies like system failures or urgent repairs. Our goal is to get you back up and running as quickly as possible.
Blogs

Medical Gas System Maintenance Indiana: How Healthcare Facilities Can Protect Safety and Reliability
Request Mechanical Services in Greenfield, IN
Whether you’re replacing a failing system, planning a new facility, or responding to an emergency, HMH Contractors is ready to support your mechanical needs with dependable, professional service.
Expert Craftsmanship. Reliable Execution.
Quality craftsmanship is at the core of everything we do. At HMH Contractors, Inc., we go beyond general contractor solutions—we offer them that reinforce safety, precision, and efficiency. Let’s talk today about getting the job done right.






