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FranchiseVerdict

Merry Maids vs HHO Carbon Clean Systems

Franchise Comparison 2026

Both Merry Maids and HHO Carbon Clean Systems are cleaning & maintenance franchises. Merry Maids requires an investment of $127K – $170K while HHO Carbon Clean Systems requires $108K – $185K. Merry Maids discloses average revenue of $487K; HHO Carbon Clean Systems does not report Item 19 data. Merry Maids has SBA lending data on file with a 5.0% charge-off rate. FranchiseVerdict rates Merry Maids A (Top Quintile) and HHO Carbon Clean Systems F (Bottom Quintile).

Investment Range
$127K – $170K
$108K – $185K
Franchise Fee
$55K
$45K
Royalty Rate
7.0%
Greater of 6% to 8% of Gross Sales or Minimum Monthly Royalty Fee Requirement
Average Revenue (Item 19)
$487K
N/A
SBA Charge-Off Rate
5.0% (115 loans)
Limited data
Total Units
802
15
Unit Growth (YoY)
N/A
N/A
Year Began Franchising
1980
2020
FDD Year
2025
2025