Logo | Diamond Mechanical

Your Trusted HVAC Partner in New Hampshire and Southern Maine

With a legacy of reliability and a commitment to excellence, we’re your partners in creating the perfect indoor environment

Expert Consultation

Comprehensive Solutions

Competitive Pricing

Our Journey in HVAC

A Decade Creating Comfortable Indoor Spaces

Diamond Mechanical LLC is more than an HVAC company; it’s a story of values and community. Established in 2020, our journey is driven by honesty, integrity, and commitment to your comfort. We’re your neighbors, committed to serving with the care and respect of a friend. As a family-owned business, trust, loyalty, and dedication are at our core

About Diamond Mechanical

Quality Over Quantity, We Do it Right the First Time

Diamond Mechanical is a family-owned and operated HVAC company founded in 2020. We specialize in selling, servicing, and installing residential and commercial heating and air conditioning systems in New Hampshire and Southern Maine, including renowned brands like Mitsubishi and American Standard. Our skilled professionals can work on oil, gas, or propane systems. Get what you are looking for at a great competitive price.

Meet Our Team of Experienced HVAC Professionals

Learn about the individuals who ensure your comfort every day

Michael Corbin


Jennifer Corbin

General Manager




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Our Value to You

Fair Pricing

When you choose us, you'll always know what you're paying for, with no hidden fees or surprises.

Personalized Service

We take the time to understand your unique needs and offer tailored solutions for your HVAC challenges.

24-hour emergency HVAC Services

We are available day or night for emergency repairs throughout New Hampshire and Southern Maine.

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