Premier Solar Repairs and Maintenance Services

Protecting the structural integrity and performance of your solar investment across Westford, Lexington, Andover, Dracut, and Southern New Hampshire.

Expert Repair Services for Aging Solar Systems

Solving Production Issues and Roof Leaks with Precision

When your solar array reaches the 10 to 12-year mark, new challenges can arise: production drops, equipment failures, and even leaks where your roof meets the mounting hardware. Sun Diagnostics brings over 25 years of combined trade experience to address these problems. Unlike standard install-only firms, our team specializes in technical diagnostics and repairs for solar systems that have moved beyond their original warranty. We understand that your home is more than just a roof with panels. Our restoration background means we treat every repair as a structural issue, not just an electrical one. Whether you are facing inverter failure, water intrusion, or unexplained performance losses, our employee-based team is ready to respond quickly. With same-day service available for urgent needs in Middlesex County and Southern New Hampshire, we are committed to getting your solar system and your home back to peak condition.

Trustworthy Service Backed by Structural Expertise

Certified, Ethical Repairs Delivered by Local Professionals

Choosing a company for solar repairs is about trust and technical skill. Sun Diagnostics operates out of Westford, Massachusetts, serving local neighborhoods and nearby towns like Lexington, Andover, and Dracut. Our approach is different: no subcontractors, no revolving-door labor. Only certified, manufacturer-trained employees work directly with you. Owner Stephen Cuzziere coordinates every project, ensuring strict quality control and honest communication. Our foundation is in restoration, so we know how to address root causes like poor flashing or structural fatigue, not just quick electrical fixes. With certifications from Enphase and SolarEdge, we are authorized to handle warranty replacements and complex diagnostics that general contractors and big-box installers avoid. Our personal 5, 15, and 20-year warranties reflect our confidence in workmanship and commitment to long-term customer peace of mind.

What Sets Our Solar Repair Process Apart

Comprehensive Diagnostics, Lasting Solutions, and Owner Oversight

Our service process is designed for homeowners who want the job done right the first time. It starts with a thorough, diagnostic-first assessment, identifying the root cause of issues like production loss or roof leaks under your solar array. Instead of guesswork or unnecessary part-swapping, we apply our restoration mindset and technical training to develop the correct repair plan. Services include equipment failure diagnosis, safe removal and re-installation of modules for re-roofing, repairing leaking mounting hardware, and restoring watertight integrity. All work is performed by our dedicated team, not subcontractors, so you always know who is on your roof. We offer same-day availability for critical failures and prioritize clear communication throughout the process. Payment by check or cash helps us keep costs lower for you by avoiding credit card fees, and you always work directly with the owner for complete accountability.

Protect Your Home and Investment with Confidence

Rely on the Region’s Premier Solar Repair Contractor

Solar repairs are not just about restoring power. They are about protecting your home’s structure and your investment for years to come. Sun Diagnostics stands alone in Middlesex County and Southern New Hampshire as a company rooted in both restoration and solar diagnostics. Our clients are typically homeowners aged 40 to 70 who value direct access to the owner and personal service. With our no-subcontractor guarantee, local presence, and manufacturer certifications, you can trust that your system is in expert hands. If your solar equipment is reaching the end of its initial warranty or you have noticed drops in production, leaks, or any other issues, contact us. We are committed to delivering lasting repairs and structural peace of mind for every client.

Common Questions About Solar Repairs and Maintenance

Answers for Homeowners in Westford, Lexington, Andover, and Beyond