Business Details
43 Years
experience
Your Trusted HVAC Partner in Houston Since 1983
JM Mechanical Services has been a trusted provider of heating, ventilation, and air conditioning solutions in Houston, Texas since 1983. As a woman-owned business, we combine decades of industry expertise with a commitment to excellence in serving residential, commercial, and industrial clients. Our Texas-licensed team specializes in system design, installation, and maintenance for both new construction and remodeling projects. With financial strength and full bonding and insurance, we prioritize customer protection while delivering reliable climate control solutions. Our technicians and installers maintain an average of 15 years' experience, ensuring professional service across Houston and surrounding areas.We emphasize preventive maintenance to maximize system efficiency and longevity, offering expert guidance on filters, ductwork, thermostats, and equipment care. Our leadership team, including President Janet McNerney and Vice President Michael Demko, maintains hands-on oversight of operations. Through consistent service since 1983, we've built a reputation for quality HVAC workmanship in Texas. Our comprehensive approach covers everything from rooftop units at commercial facilities to chilled water systems at industrial sites. We remain dedicated to technical excellence while maintaining transparent communication with clients.
Services
HVAC Installation
System Maintenance
Commercial Repairs
Design Services
Industrial HVAC
Details
- Year established: 1983
Highlights and features
- 40+ years serving Houston's HVAC needs
- Woman-owned business with proven leadership
- Licensed, bonded, and fully insured
- Technicians with 15+ years average experience
- Serving Houston since 1983 with reliability
Associations and certifications
- State of Texas
Services
HVAC Installation
We provide complete HVAC system installation for new construction and remodeling projects. Our Texas-licensed technicians handle residential, commercial, and industrial installations with precision engineering. From rooftop units to chilled water systems, we ensure proper sizing and configuration for optimal performance and energy efficiency.
Commercial Repairs
Our commercial HVAC repair services maintain operational efficiency for businesses in Houston. We service fire stations, malls, restaurants, and industrial facilities. With experience in complex systems like the Port of Houston terminal's chilled water system, we deliver reliable solutions for critical commercial environments.
System Maintenance
We offer comprehensive maintenance programs to extend HVAC system lifespan and prevent breakdowns. Our technicians perform filter changes, duct inspections, thermostat checks, and condenser maintenance. Regular service helps maintain manufacturer warranties and ensures peak system efficiency throughout Houston's climate.
Industrial HVAC
Specializing in industrial HVAC solutions, we design and maintain systems for manufacturing and processing facilities. Our experience includes large-scale installations like storage facilities and terminal operations. We implement robust systems that handle demanding environmental control requirements in industrial settings.
Design Services
Our HVAC design services create customized climate control solutions for new buildings. We engineer systems that integrate with architectural plans while meeting energy efficiency standards. From churches to dining halls, our designs balance comfort requirements with operational efficiency for diverse commercial applications.
People
Janet McNerney
President
As President and owner of JM Mechanical Services, Janet McNerney leads the company's strategic direction while maintaining hands-on involvement in operations. With over 40 years of HVAC industry experience since founding the business in 1983, she ensures quality standards and customer satisfaction.
Michael Demko
Vice President
Vice President Michael Demko oversees daily operations and project management at JM Mechanical Services. With extensive HVAC expertise, he manages the technical team and ensures proper execution of commercial and industrial projects across Houston and surrounding areas.
Questions
What HVAC services do you offer for commercial businesses?
We provide complete commercial HVAC services including system design, installation, maintenance, and emergency repairs for offices, restaurants, industrial facilities, and public buildings in Houston.
Do you handle both residential and industrial HVAC systems?
Yes, we service all system types including residential homes, commercial buildings, and industrial facilities with specialized solutions for each environment's unique requirements.
How often should HVAC filters be replaced?
We recommend monthly filter changes under normal conditions, with more frequent replacement needed in dusty environments or during heavy usage periods to maintain system efficiency.
Are your technicians licensed and insured?
All our technicians are Texas-licensed professionals covered by full bonding and insurance as required by the State of Texas for HVAC contractors.
What maintenance services help prevent HVAC emergencies?
Regular inspections of ductwork, thermostats, condensers, and air handlers help identify potential issues before they become emergencies, extending system lifespan and maintaining efficiency.
Can you service older HVAC systems?
Yes, our experienced technicians work with all system types and ages, providing maintenance, repairs, and modernization solutions for legacy HVAC equipment in Houston buildings.
