Enphase Certified Installer

Enphase solar experts in Frederick, MD

Capitol Solar Experts is an Enphase certified installer and service company with more than 16 years of experience. We install, maintain and repair Enphase systems across Maryland, Virginia, Pennsylvania, Delaware and the Washington, DC metro area.

Enphase certified since day one

We've worked with Enphase microinverters, Envoy communications and monitoring platforms for over 16 years. Whether you need a brand-new system, an annual tune-up or a warranty repair, our technicians are trained to get your array back to full production.

Enphase work in the field

Real photos from our Enphase installations and service calls across the DC metro area.

Enphase combiner box installed beside the utility meter and AC disconnect on a home exterior

Enphase combiner & AC disconnect

Clean, code-compliant service equipment: meter, safety switch, Enphase combiner and AC disconnect wired and labeled.

Enphase microinverters mounted along a roof rail with trunk cabling

Microinverter branch wiring

Microinverters mounted and cabled along the rail with the trunk cable routed for easy service access.

Aluminum solar mounting rails with copper grounding conductor on a shingle roof

Rails with grounding

Flashed mounts, aligned rails and a bonded copper grounding path before panels go on.

What we do

Full-service Enphase support — from installation and maintenance to warranty repairs and troubleshooting.

Certified Enphase installation

We design and install Enphase microinverter systems sized for your roof, your usage and your goals — backed by manufacturer-trained know-how.

Annual maintenance plans

Yearly cleaning, torque checks, inverter firmware updates and production audits keep your array performing like it did on day one.

Service calls & troubleshooting

From micros that stop reporting to combiner and communication issues, we diagnose the problem and fix it — usually in a single visit.

Warranty repairs

Your Enphase system came with a warranty. We handle warranty repairs and replacements so you don't have to chase the manufacturer yourself.

Common issues we solve

Microinverters not reporting production

Low or zero panel output

Envoy or combiner communication errors

System monitoring offline

Inverter replacement under warranty

Annual cleaning and production check

Service area

Home office in Frederick, Maryland. Trucks on the road across the DC metro and surrounding states.

MarylandVirginiaPennsylvaniaDelawareWashington, DC metro area

Request Enphase service

Tell us what's going on and we'll schedule a certified technician.

Why work with a certified installer?

Certification means our team is trained directly by Enphase, uses approved procedures, and can streamline warranty work. You get faster diagnostics and repairs that protect your equipment warranty.

Warranty-friendly repairs

We diagnose and replace failed microinverters and equipment under warranty without voiding the rest of your system coverage.

Ready to make the switch to solar?

Join over 1,000 happy customers across Maryland, DC, Virginia, Pennsylvania and West Virginia who are saving big with Capitol Solar Experts.

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