Diamond Mechanical: Your Local HVAC Partner in Exeter, NH

Diamond Mechanical is a family-owned HVAC and water heater company serving Exeter, NH, and the surrounding Seacoast towns. Since opening in 2020, they have provided reliable heating, cooling, and hot water solutions for homes and businesses. They are known for answering the phone 24/7, making them a trusted partner for both planned projects and emergency repairs.

Business Overview

Diamond Mechanical operates with a small, dedicated team that brings over a decade of field experience to every job. They focus on both residential and commercial systems. Whether it's a routine furnace tune-up in the fall or a broken air conditioner on a hot summer day, they are equipped to help. Their standard hours are Monday through Friday, 8 AM to 4 PM, but their emergency line is always open.

Key Services for Your Home or Business

The team at Diamond Mechanical handles a wide range of needs to keep your property comfortable year-round.

• Heating & Air Conditioning: They specialize in installing, servicing, and repairing systems that use oil, gas, or propane. You'll find products from trusted brands like Mitsubishi and American Standard in their service vans.
• Water Heater Solutions: From new installations to fixing leaks and no-hot-water issues, they manage all types of water heater repair and installation.
• System Maintenance: Regular check-ups for furnaces, boilers, and AC units to improve efficiency and prevent costly breakdowns.

Areas Served with Local Knowledge

Diamond Mechanical proudly serves the New Hampshire Seacoast. Their service area includes Exeter, Portsmouth, Stratham, Kingston, Rye, North Hampton, Brentwood, East Kingston, and Kensington. Working in these communities every day means they understand local housing styles, from historic New England homes to modern builds, and the specific climate challenges that come with coastal New Hampshire and Southern Maine weather.

Company History & Growth

Founded in 2020, Diamond Mechanical was built on a foundation of 10 years of hands-on industry experience. The decision to start the company came from a simple goal: to offer straightforward, quality HVAC service in their own community. They have grown by focusing on dependable work and clear communication, building a strong reputation in a relatively short time.

Leadership & Local Presence

As a family-owned and operated business, the owners are directly involved in daily operations. Their 10 years of experience before opening means they've seen and solved a vast array of system problems. Being based in Exeter, NH, they have a personal stake in keeping their neighbors comfortable. You might see their trucks around town, a sign of their active role in the local economy.

Specialties & Highlights

What makes Diamond Mechanical stand out?

• 24/7 Emergency Service: They promise to always answer the phone. For after-hours heating or cooling crises, call 603-580-4844.
• Expertise with Leading Brands: They are specialists in installing and servicing Mitsubishi and American Standard systems.
• Family-Owned Values: Customers work directly with the owners, ensuring accountability and care.
• Competitive, Upfront Pricing: They provide clear estimates for work in New Hampshire and Southern Maine.

Why Locals Choose Diamond Mechanical

Residents and business owners in Exeter, NH, and nearby towns choose Diamond Mechanical for their blend of experience and accessibility. Even as a newer company, their decade of field knowledge translates into skilled, efficient service. The combination of family-run dedication, 24/7 emergency availability, and deep familiarity with local homes creates a reliable resource for all HVAC and water heater needs. When you need a system installed, repaired, or just checked, Diamond Mechanical in Exeter, NH, provides a practical, trustworthy solution.