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Residential & Commercial Mechanical Contracting Services
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Residential & Commercial
Mechanical Contracting Services

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about1 About Coastal Efficiency, Inc.

Expert Mechanical Solutions, Engineered for Performance

Deep engineering roots and decades of hands-on experience in industrial mechanical systems allow us to partner with facility owners to design thoughtful, efficient solutions. From keeping systems reliable, optimizing performance or delivering high-value construction projects, CEI is your trusted mechanical contractor.

  • Commercial & Industrial
  • Residential
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(207) 232-7778

Full-service mechanical contractor

Plan • Design • Build

Project Planning

Strategic project management from preconstruction through completion. We coordinate design, scheduling, and field execution to ensure projects are delivered safely, efficiently, and on budget.

Mechanical Contracting

Comprehensive commercial and industrial mechanical contracting services. The coastal team provides turnkey design, installation, and maintenance solutions for new builds, renovations, and large-scale facility upgrades.

Conventional HVAC/R

Design, installation, and service of traditional heating, cooling, and refrigeration systems. We deliver dependable comfort and performance for offices, Institutions, manufacturing plants, and mixed-use facilities.

VRF & Heat Recovery

High efficiency variable refrigerant flow and heat recovery systems that provide precise temperature control, zoning flexibility, and energy savings across complex building environments.

Steam Systems

Design, installation, and maintenance of low and high-pressure steam systems for commercial and industrial facilities.

Plumbing & Fuel Gas

Full-service plumbing and gas fitting solutions including domestic water, process piping, drainage, and gas distribution systems.

about1 Testimonials

Client Feedback

This company was extremely professional, on time and incredibly helpful. They spent a number of hours on a couple visits with us answering all our questions to make sure the application for us was right. I would highly reccomend this company for any and all your HVAC needs

Michael V.

Michael V.

We’ve had the pleasure of working with Coastal Efficiency, Inc. on several new construction projects and they’ve been outstanding every time. Their attention to detail, quality of work, and professionalism are second to none. It’s refreshing to partner with a company that consistently delivers top-notch results and takes pride in what they do! We look forward to many more projects together!

Brooke P.

Brooke P.

Rob & Cam are amazing! As engineers, it took little time for them to design a whole house heat pump system that perfectly fit our needs, including 4 flush mounted ceiling heads. The product was delivered within 24 hours of approving the system design and completely installed two days later. I can't say enough about their professionalism, quality product, careful installation and price.

Kenneth S.

Kenneth S.

Super Company to deal with! Competitive price, returned all calls or text immediately, arrived at schedule time for installation, clean neat efficient and knowledgeable. A pleasure to do business with!!

Gary B.

Gary B.

Cameron and Rob were a pleasure to do business with from start to finish. Customer service was outstanding and all our questions were answered completely. We were completely satisfied with our install, cleanup and also the demolition of our old heating system. We will not hesitate to recommend them in the future.

Pattie C.

Pattie C.

Rob and crew installed heat pump systems in 6 buildings at a family Long Lake property in Naples this fall. From start to finish they were some of the most knowledgeable / professional / communicative and prompt trades company we have ever worked with. They explained system options and best models and how everything would work in terms we understood. Always available for questions when we had them. So trustworthy and polite. Without a doubt, we highly recommend this company and will continue to work with them in the times to come😁. Best in the business!

Nate N.

Nate N.