J.S. Mortimer, Inc.
About Us
For over two decades, J.S. Mortimer, Inc. has partnered with commercial, industrial, and institutional facility managers across Massachusetts. We bridge the gap between complex engineering concepts and field execution—delivering comprehensive mechanical solutions from initial load calculations to full-scale mechanical installation and ongoing lifecycle service.
Complex Environment Expertise
We specialize in mission-critical facilities with zero room for error—including active healthcare wings, research laboratories, art museums, and institutional boiler plants.
Single-Source Accountability
From preliminary design and permitting through industrial pipefitting and equipment startup, having in-house engineering means fewer change orders, faster approvals, and a direct line of communication.
Mechanical Support
Quality extends far beyond system install. Our service and start up technicians are widely regarded as the best in New England, bringing over 30 years of field-tested trade experience to every emergency call, diagnostic check, and preventive maintenance inspection.
Leadership & OfficeTeam
Expertise. Reliability. Integrity
Family-owned since day one, our leadership team sets the standard for how we do business across Massachusetts. We believe open communication and long-term relationships start from the top, and we take pride in being a dependable partner you can always reach directly.

CEO & Founder
Jack Mortimer

President & Professional Engineer (PE)
Mike Mortimer

Vice President
Matt Mortimer

Director of Operations
Julie (Mortimer) Wall

Office Manager
Doe Mortimer
OUR SERVICES
EXPERIENCE
COMMERCIAL
We have extensive experience in various commercial facilities and institutions ranging from art museums and religious institutions to office spaces. We pride ourselves on our customer relationships and our ability to work in all facilities. We are confident we can find the right HVAC solution for each space.

INDUSTRIAL
We have completed countless projects in industrial facilities over our 20+ years. Whether for manufacturing, distribution, or warehousing, we will determine the best HVAC system for the space to meet the customer’s needs both functionally and financially.

LABORATORIES & PROCESSES
Our design team has in depth experience with laboratory design and our field personnel is experienced in the complex installation. We understand the complexity and challenges inherently associated with laboratory projects and work closely with the owners and laboratory staff to determine the most appropriate systems for the space usage. If working in an existing lab, we always make sure to work carefully to not disrupt the processes. Our field personnel is also experienced with process and gas piping.

EDUCATION
Over the 20+ years we have been in business, the education field has been one of our largest groups of projects. We have in depth experience in both the installation and service for all levels of education including universities, high schools, elementary schools, private, public, and specialty education. We always make sure to accommodate the challenges facing educational facilities such as critical schedules and cost.

HEALTHCARE
Similar to laboratory projects, healthcare facilities often have similar challenges that our in-house design staff and field personnel are both very experienced with. We work closely with the owner to determine the appropriate HVAC systems for the space usage.

SOME OF OUR VALUED CUSTOMERS






















CONTACT
Inquiries
For any inquiries or questions, please call: 508-832-9229 or fill out the following form
Main Office
13 Rockland Rd.
Auburn, MA 01501
CEO: Jack Mortimer
Contact: jack@jsmortimer.com
President: Michael Mortimer, P.E.
Contact: mike@jsmortimer.com
Vice President: Matt Mortimer
Contact: matt@jsmortimer.com
Tel: 508-832-9229
Employment
To apply for a job with J.S. Mortimer,Inc., please send a Resume to: jack@jsmortimer.com



