Business Details
34 Years
experience
Emergency
services
Trusted Commercial HVAC Contractors in New Hampshire
Highland Mechanical was founded in 1992 with a commitment to integrity, excellence, and customer satisfaction. Our team of over 30 professionals brings decades of combined experience to every project, from small installations to complex commercial systems. We specialize in mechanical contracting services including HVAC design, ductwork installation, and system maintenance. Our technicians hold industry certifications such as OSHA, EPA, and Mitsubishi Diamond Commercial Contractor status. We prioritize safety, quality workmanship, and continuous training to stay current with evolving technologies.Our fleet of 20+ trucks ensures timely service across New England. Clients rely on our proven track record of meeting deadlines and delivering solutions tailored to their specific needs. Our family-owned business combines personalized service with the technical expertise required for large-scale projects. We maintain partnerships with major suppliers to source optimal equipment without brand bias. Our apprenticeship program invests in the future of the industry while ensuring our team remains at the forefront of innovation.
Services
HVAC Design/Build
Commercial Ductwork
System Maintenance
Clean Room Installations
Data Center Cooling
VRF Systems
Building Automation
Preventive Maintenance
Emergency Repairs
Energy Management
Details
- Year established: 1992
Highlights and features
- We offer 30+ years of specialized HVAC experience across multiple industries
- Our team includes certified technicians with NATE, OSHA, and EPA credentials
- We maintain a 98% on-time project completion rate across New England
- Our in-house sheet metal fabrication capabilities reduce project timelines
- We provide 24/7 emergency service for critical system failures
Associations and certifications
- Mitsubishi Diamond Commercial Contractor
- OSHA Certified
- EPA Certified
What people say
Extremely competent
Good to work with
Done right first time
Amazingly responsive
High regard
Services
HVAC Design/Build
Our full-service HVAC design and installation covers commercial and industrial applications. We handle complete system engineering from initial planning through final implementation. Our team specializes in integrating heating, cooling, and ventilation systems for optimal performance in facilities ranging from office buildings to data centers. All installations meet current ASHRAE standards and local code requirements.
Commercial Ductwork
We provide custom sheet metal fabrication and installation for commercial HVAC systems. Our in-house facility produces precision ductwork components to exact specifications. Services include high-velocity duct systems, smoke control installations, and specialized configurations for clean rooms and laboratories. All work follows SMACNA guidelines for quality and performance.
Clean Room Systems
Our clean room HVAC solutions maintain strict environmental controls for medical and research facilities. We install HEPA filtration systems, temperature stabilization units, and pressure-controlled ventilation. Our technicians are trained in contamination prevention protocols and ISO 14644-1 compliance standards. Systems ensure particulate control and air quality maintenance in critical environments.
Data Center Cooling
We design precision cooling systems for data centers and server farms. Our solutions include in-row cooling units, hot aisle containment systems, and redundant HVAC configurations. We specialize in maintaining optimal temperature and humidity levels for continuous operation. Systems integrate with building management platforms for real-time monitoring and energy efficiency.
Preventive Maintenance
Our maintenance programs extend equipment lifespan and prevent unexpected failures. Services include quarterly system inspections, filter replacements, coil cleaning, and performance testing. We use digital diagnostics to identify potential issues before they cause downtime. Clients receive detailed service reports and equipment condition assessments after each visit.
People
Bob MacLean
Owner & President
With 33+ years in HVAC contracting, Bob oversees all operations while remaining actively involved in field work. He holds multiple certifications including Oil Burner License, Gas Fitters License, and Mitsubishi Diamond Contractor status. His hands-on leadership ensures quality control across all projects.
Sheilagh MacLean
Office & HR Manager
Sheilagh manages administrative operations and human resources. She coordinates employee training programs and maintains compliance with labor regulations. Her organizational skills ensure smooth day-to-day operations for the 30+ member team.
Mike MacLean
Head of Estimating
Mike leads cost estimation and project budgeting. He develops detailed proposals using advanced HVAC design software. His expertise ensures accurate project costing while maintaining competitive pricing for clients across various industries.
Rick Perrault
Project Manager
Rick coordinates project execution from planning through completion. He manages timelines, resources, and client communications. With 15+ years in mechanical contracting, he ensures adherence to specifications while maintaining budgetary constraints for complex commercial installations.
Linda Giordano
Office Administrator
Linda serves as primary point of contact for client communications. She manages scheduling, documentation, and customer service inquiries. Her attention to detail ensures efficient coordination between field operations and client requirements.
Questions
What commercial HVAC services do you offer?
We provide full-service HVAC solutions including system design, installation, maintenance, and emergency repairs for commercial and industrial facilities.
Do you handle large-scale projects?
Yes, we complete projects ranging from small renovations to 100,000+ sq ft installations with dedicated project management teams.
Are you licensed for mechanical contracting?
We hold MA Sheet Metal Master License, NH HVAC certifications, and multiple industry-specific credentials for commercial installations.
Do you offer maintenance programs?
Yes, our preventive maintenance plans include quarterly inspections, system optimization, and 24/7 emergency service availability.
What industries do you serve?
We specialize in data centers, healthcare facilities, clean rooms, educational institutions, and commercial office buildings across New England.
Can you handle specialized HVAC systems?
Our team installs and maintains VRF systems, clean room environments, and precision cooling solutions for technical facilities.
