Stone Environmental Services™ vs Window Genie
Franchise Comparison 2026
Both Stone Environmental Services™ and Window Genie are cleaning & maintenance franchises. Stone Environmental Services™ requires an investment of $151K – $261K while Window Genie requires $142K – $268K. 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 Stone Environmental Services™ A (Top Quintile) and Window Genie F (Bottom Quintile).
| Metric | Stone Environmental Services™ | Window Genie |
|---|---|---|
| Verdict Grade | ATop QuintileTop Quintile | FBottom QuintileBottom Quintile |
| Investment Range | $151K – $261K | $142K – $268K |
| Franchise Fee | $50K | $63K |
| Royalty Rate | 7.0% | 7.0% |
| Average Revenue (Item 19) | $921K | N/A |
| SBA Charge-Off Rate | N/A | 29.9% (117 loans) |
| Total Units | 1 | 106 |
| Unit Growth (YoY) | N/A | N/A |
| Year Began Franchising | 2025 | 1998 |
| FDD Year | 2025 | 2024 |
Investment Range
$151K – $261K
$142K – $268K
Franchise Fee
$50K
$63K
Royalty Rate
7.0%
7.0%
Average Revenue (Item 19)
$921K
N/A
SBA Charge-Off Rate
N/A
29.9% (117 loans)
Total Units
1
106
Unit Growth (YoY)
N/A
N/A
Year Began Franchising
2025
1998
FDD Year
2025
2024