Solar
Solar guaranteed to work.
A 95% Power Production Guarantee. 25-year warranties on equipment and workmanship. 84.7% efficiency guaranteed after 30 years. The numbers are in writing — not in the sales pitch.
Get a Solar QuoteIn writing
Three guarantees that turn solar from a hope into a contract.
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Power Production Guarantee
If your system doesn’t produce at least 95% of what we projected, we make it right. No fine print, no excuses.
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Warranty Coverage
A quarter-century of coverage on equipment and workmanship. Built and installed by Universal Solar Direct — 15 years in the field and one of the longest-tenured solar companies in the US.
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Efficiency After 30 Years
Your panels are guaranteed to still be producing at 84.7% or better three decades from install day.
System options
Designed around your home. Not a template.
Every property is different. Roof-mount, ground-mount, battery backup, off-grid — we engineer the right setup for your roof, usage, and goals.
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Roof-mount solar
Panels installed flush to your roofline by crews trained on residential pitch and material — preserving your home’s look while maximizing production.
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Ground-mount solar
When the roof isn’t the right fit, we engineer ground-mount arrays on your property — oriented and tilted for peak output.
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Whole-home battery backup
Tesla Powerwall, Enphase, and Franklin storage systems keep your essentials running through outages. Charge from the panels, discharge when you need it.
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Off-grid systems
For homeowners ready to leave the utility behind entirely. We design fully off-grid setups sized to your real-world usage.
Certified & credentialed
Certified partners. Best in the game.
Process
Your guided route from curiosity to quote.
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Step 01: Discovery
Share your address, energy priorities, and solar questions.
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Step 02: Design direction
Review system fit, roof considerations, and quote-ready details.
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Step 03: Installation coordination
Move forward with clear communication and organized next steps.
Homeowner reviews
Real homes. Real results. Real receipts.
Featured testimonial
Hear it directly from a Great Lakes Solar homeowner.
A real client story gives new homeowners a better sense of the process, the team, and what it feels like after the system is installed.
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“The team explained everything in plain language and stuck to what they said the system would do. No surprises, no pressure — just a clean install that works.”
M. Anderson
Crown Point, IN
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“We added a whole-home battery alongside the panels. When the grid went down last winter, we never noticed. Worth every penny.”
J. & L. Carter
Valparaiso, IN
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“I priced solar with three companies. Great Lakes was the only one that put the production guarantee and 25-year coverage in writing without me asking.”
R. Patel
Merrillville, IN
Solar FAQs
Questions worth asking.
What does the 95% Power Production Guarantee mean?
If your system produces less than 95% of what we projected for the year, we service it, replace equipment, or compensate you. It’s a clause in your contract, not a marketing line.
What’s included in the 25-year warranty?
Panels, inverters, racking, and the workmanship our crews put on your roof. Panels are also guaranteed at 84.7% efficiency or better after 30 years.
Do I need a new roof before solar?
Sometimes. We inspect the roof before designing the system. If it needs work, we can handle the roofing too — see /services/roofing.
Roof-mount or ground-mount — which fits my property?
Depends on roof orientation, shading, and yard space. We walk through both options during your consultation and recommend the one that produces more power for your specific site.
Ready when you are
Get the guarantees in writing.
A free consultation gets you a real production projection, the certifications behind it, and the contract language that backs it up.