5.0 ★★★★★

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Trusted by Homeowners for Solar Repairs That Last

See why homeowners across Westford, Lexington, Andover, and Southern New Hampshire rely on Sun Diagnostics for expert diagnostics, lasting repairs, and direct owner service.

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What Our Clients Say

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Protect Your Roof and Solar Investment Today

Don’t let leaks, failing equipment, or production drops threaten your solar system or your home. Sun Diagnostics delivers fast, reliable repairs and maintenance for homeowners throughout Westford, Lexington, Andover, Dracut, and Southern New Hampshire. Request a diagnostic or service call and work directly with the region’s most trusted solar repair expert.

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Get in Touch with Sun Diagnostics

Ready for a system diagnostic or urgent repair? Our team serves Middlesex County and Southern New Hampshire, including Westford, Lexington, Andover, and Dracut. Call (978) 652-2323 during business hours Monday through Friday, or fill out our request form for a prompt response. We welcome checks and cash payments to keep your service costs down.

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Our Services

Explore our comprehensive solar solutions for Massachusetts and Southern New Hampshire. From expert electrical diagnostics to system maintenance, we protect the performance of your residential or commercial array with a structural-first perspective.

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solar maintenance

Proactive care, performance audits, and debris removal to protect your solar investment. Ideal for keeping residential and commercial systems running efficiently post-warranty.

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solar repairs

Expert technical diagnostics and repairs for aging solar systems. We resolve inverter failures, performance drops, and hardware issues with factory-certified precision.

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Solar Re-Roofing Support

Safe detachment, secure storage, and watertight re-installation of your solar panels during roofing projects. We partner directly with your local roofer to ensure seamless protection.

About Us

Founded in 2007, Sun Diagnostics leverages over 25 years of combined trade experience. Rooted in construction and fire restoration since 1994, our employee-based team delivers structural peace of mind directly to you.

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Meet The Team

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FAQS

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Service Areas

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FAQs

Get clear, honest answers to common questions about solar diagnostics, labor warranties, "orphaned" systems, and preferred payment options.

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Service Areas

Find out where we provide prompt, local solar support. We proudly serve Massachusetts homeowners throughout Middlesex County and select communities across Southern New Hampshire.

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Meet The Team

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Team meeting in a brick-walled office, with a man presenting beside a laptop as others listen around a table.

FAQS

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Team meeting in a brick-walled office, with a man presenting beside a laptop as others listen around a table.

Service Areas

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Reviews

Real feedback from homeowners who trust us for solar repairs, maintenance, and leak protection done right the first time.