Climate Design Systems

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Gas Heating Systems Air Conditioning Systems

About Us

Locally Managed and Operated

Climate Design Systems, originally founded in 1946 under the name of Haverhill Sheet Metal, is a full-service heating, air conditioning and indoor air quality contractor. We are locally owned and managed by some of the most experienced HVAC specialists in the Northeast.

Climate Design Systems is a division of Merrimack Valley Corp., a recognized leader in heating, air conditioning and mechanical contracting in the Northeast. Both companies share a 36,000 square foot facility located in Methuen and serve the Merrimack Valley, Southern New Hampshire and Greater Boston.

We always take the time to educate our clients on guidelines, new and old, that need to be followed. As a green company, we are concerned with preserving our environment and inform our clients of local and federal funding available when they install systems that are energy efficient. Our Design Build Division always takes into consideration rebates from local utilities when designing mechanical systems.

All of our engineers and technicians are fully certified and trained. We have a staff of 150+ employees and maintain a fleet of 75 digitally-dispatched service vehicles equipped with the parts needed for a majority of repairs. Our staff keeps up with the latest in heating and air conditioning technology.

We’re committed to do the job -- every job -- the right way.


Leonard "Buddy" Thomas
President & CEO
Merrimack Valley Corp.Leonard Buddy Thomas

As President and CEO of our parent company, Merrimack Valley Corp., Leonard "Buddy" Thomas has overseen the acquisition of Climate Design Systems and three other HVAC companies in the past five years which are now all Divisions of Merrimack Valley Corp. All of these companies have been brought back to local management which is a big part of the culture that Buddy believes in.

Having 35 years of experience in the HVAC industry, Buddy understands and has experience in all aspects of this business. He is responsible for the financials of all five companies as well as staying compliant with all local, government and federal guidelines, meeting the needs of employees, customers and vendors while continuing to set the strategy and vision for each company.


Richard Sage
ControllerRichard Sage

Richard Sage has nearly 40 years of experience in all facets of operational accounting.  He has held management positions for several companies in Massachusetts. He also has held key positions in Human Resources and compensation.

As Controller of Merrimack Valley Corp. Richard manages the Accounting team for the Merrimack Valley group. He is responsible for managing budgeting and cash flow for four companies in the eastern region of the United States. He also works on a regular basis with the President & CEO on strategic planning.

Email Me >> rsage@mvalleycorp.com


Dave Fay
PurchasingDave Fay

Dave Fay joined our parent company, Merrimack Valley Corp. in 1986. He has 29 years of experience in fabrication and installation. His responsibilities grew with the acquisition of Climate Design Systems and he now oversees the Fabrication Department for both companies. His responsibilities grew again as he became involved in Purchasing approximately ten years ago. In addition to managing the Fabrication Departments for both Merrimack Valley Corp. and Climate Design Systems, Dave is responsible for overseeing the purchasing of all materials for both companies. His many years of experience and involvement in the field coupled with his vast understanding of plumbing and HVAC supplies needed for the job allow him to ensure accurate job costing and customer satisfaction. His responsibilities include communications with Vendors, Suppliers, Field Staff, and Project Managers.

Email Me >> dfay@mvalleycorp.com


Peter Lacroix
Residential Operations Manager
Residential Plumbing Division

Specializing in all areas of plumbing including commercial, residential, and service, Peter started his career in the Plumbing industry nearly 28 years ago. Licensed in both Massachusetts and New Hampshire, Peter now manages and oversees the operations of the residential Plumbing Division at Climate Design Systems. He holds a NH Master Plumbing License, NH Gas Fitter's License, and MA Journeyman Plumber's License. Raised in Methuen, MA, Peter now resides in Litchfield, NH with his wife of 22 years and two children.


Testimonials

We are proud of our staff - not just their skills but their devotion to our customers and to get the job done right. We live in the region we serve, and we think of our customers as our friends and neighbors. We love it when our customers tell us we've done a great job!

View Some of Our Recent Reviews




Affiliations

We encourage you to check our references before working with us. We are proud of our customer service efforts and our affiliations with other professional organizations.

Affiliations & Organizations