Quote Comparison Worksheet
Three quotes for the “same” job can differ by thousands because they aren't quoting the same job. Put them side by side, normalized to a comparable unit price, and see what each one leaves out.
Side by side
Enter a price for at least one quote and the comparison appears here. With two or more, you also get the price spread and the red-flag checks from our installer vetting guide.
Kept on this device
Your entries are saved in this browser so they're here next time. Nothing is sent anywhere.
How This Estimate Works
- Unit price = total cash price ÷ capacity — dollars per watt for solar, dollars per usable kWh for a battery. This is the only number that compares fairly across differently-sized systems.
- Missing inclusions are worked out relative to your own quotes: if one installer covers permits and another doesn't, that gap is flagged. A cheaper quote that excludes a panel upgrade isn't cheaper.
- Red flags apply the checks from our installer vetting guide — a monthly payment quoted instead of a total, no physical site inspection, urgency tactics, no workmanship warranty, or a price more than 25% below the median of your own quotes.
The worksheet doesn't rank quotes or tell you which to accept — it can't see equipment quality, crew experience, or how a company handles a warranty claim in year eight. What it does is stop a headline number from doing your thinking for you.
Everything you type stays in this browser. Nothing is uploaded, and no installer is contacted.
Guides that explain these numbers
- How to Vet a Solar Installer: Questions to Ask and Red Flags to AvoidYour solar installer matters more than your panel brand. Here are the questions to ask and the warning signs to walk away from.Solar & Battery · 3 min read
- How Much Do Solar Panels Cost in 2026 — And When Do They Pay Off?Real 2026 solar pricing, what drives the cost per watt, and how to think about payback period for your home.Solar & Battery · 3 min read
- What Does a 10kWh Home Battery Actually Cost in 2026?A clear breakdown of home battery pricing in 2026 — hardware vs. installed cost, what drives the range, and why incentives are the biggest wildcard.Solar & Battery · 3 min read
Other calculators
- Rebate Eligibility CheckerCheck what your project still qualifies for
- Solar Payback EstimatorRun your own numbers in the solar payback estimator
- Battery Runtime EstimatorEstimate your own outage runtime
- Heat Pump vs. Gas FurnaceCompare operating costs at your local rates
- Electric Bill AnalyzerSee where your electricity actually goes
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