Window Genie vs Stone Environmental Services™
Franchise Comparison 2026
Both Window Genie and Stone Environmental Services™ are cleaning & maintenance franchises. Window Genie requires an investment of $142K – $268K while Stone Environmental Services™ requires $151K – $261K. Stone Environmental Services™ discloses average revenue of $921K; Window Genie does not report Item 19 data. Window Genie has SBA lending data on file with a 29.9% charge-off rate. FranchiseVerdict rates Window Genie F (Bottom Quintile) and Stone Environmental Services™ A (Top Quintile).
| Metric | Window Genie | Stone Environmental Services™ |
|---|---|---|
| Verdict Grade | FBottom QuintileBottom Quintile | ATop QuintileTop Quintile |
| Investment Range | $142K – $268K | $151K – $261K |
| Franchise Fee | $63K | $50K |
| Royalty Rate | 7.0% | 7.0% |
| Average Revenue (Item 19) | N/A | $921K |
| SBA Charge-Off Rate | 29.9% (117 loans) | N/A |
| Total Units | 106 | 1 |
| Unit Growth (YoY) | N/A | N/A |
| Year Began Franchising | 1998 | 2025 |
| FDD Year | 2024 | 2025 |
Investment Range
$142K – $268K
$151K – $261K
Franchise Fee
$63K
$50K
Royalty Rate
7.0%
7.0%
Average Revenue (Item 19)
N/A
$921K
SBA Charge-Off Rate
29.9% (117 loans)
N/A
Total Units
106
1
Unit Growth (YoY)
N/A
N/A
Year Began Franchising
1998
2025
FDD Year
2024
2025