Solar company review

Certasun Reviews

Certasun is a regional residential solar and battery installer based in Buffalo Grove, IL that serves the Chicago and Milwaukee metro areas. The company offers solar panels, home batteries, EV chargers and post-install service. If you’re comparing local options to national names like Sunrun, Sunnova or Tesla Energy Solar, a key question here is who actually does the installation and long-term service — that can affect timing, workmanship and service response.

Best for: Homeowners in IL/WI metros Service area: Chicago & Milwaukee metros Financing: Varies

Quick verdict

Certasun looks like a hands-on regional provider for Chicago and Milwaukee homeowners, but the most important thing to confirm up front is who will install and support your system — local crew, subcontractor, or a third party — because experience and responsiveness can differ by territory.

What stands out

• Focus on residential systems, batteries and EV chargers in the Chicago/Milwaukee area
• BBB accredited since 2019 — a sign of some longevity in the market
• Offers post-install service and repairs (useful if you prefer a single point of contact)

Things to watch

• Public profile and review data are thin, so local installer quality is harder to verify
• Financing details and warranty handling aren’t publicly clear — get specifics in writing
• Limited geographic reach compared with national firms, so options may be fewer

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Our review summary

Certasun is a regional residential installer with services that cover panels, batteries, EV chargers and repairs around Chicago and Milwaukee. The company’s online footprint is limited, so you won’t find the same volume of independent reviews or media coverage you’d see for national installers. That makes it especially important to ask detailed questions about who will perform the physical installation, who handles service calls, and what your paperwork says about transfer or buyout terms if you move. Their BBB accreditation since 2019 adds some reassurance, but it shouldn’t replace local reference checks and verifying crew experience for your zip code.

Common homeowner complaints

There isn’t a large public record available in the sources used here. Because review volume appears limited, look up recent homeowner feedback in your area, ask for local references, and check the contractor or crew assigned to your project before you commit.

Pricing and financing notes

Pricing and available payment options are not clearly documented in public sources. Expect typical residential choices (cash, loan, lease, PPA) may be offered, but confirm what’s available in your market, interest rates, term lengths, and any transfer or buyout terms in writing before signing.

Who this company may be best for

Certasun may suit homeowners who prefer a regional installer and want a single company to handle panels, batteries and EV chargers in the Chicago and Milwaukee metros. If you care most about a local relationship rather than a national brand, Certasun is worth getting quotes from. That said, compare proposals with larger players like Sunrun, Sunnova or Tesla Energy Solar and with independent local installers — especially to compare who actually does the installation, turnaround times, and how service calls are routed.

Recent review highlights

A few quick takeaways homeowners often care about when comparing Certasun with alternatives.

Positive theme

Offers a combined lineup of solar, batteries and EV chargers with local service focus.

Caution theme

Public review volume is low, so confirm the installer team, credentials, and recent local jobs before you hire.

Buyer takeaway

Good candidate if you want a regional firm, but do your homework on the crew and service process — who shows up matters more than the name on the contract.

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