Stormwater BMP Maintenance
Rainwater compliance work property owners cannot ignore
Bottom line
Worth studying, but do not buy without strong local proof.
Stormwater BMP maintenance companies inspect, clean, repair, and document the ponds, vaults, swales, separators, and underground systems that keep commercial properties compliant with local runoff rules. The boring magic here is compliance paperwork: many cities and utilities require annual inspections and maintenance logs, so owners either stay on schedule or risk fines, failed reports, and drainage headaches. That turns ugly drainage assets into recurring service contracts.
Avg Revenue
$650K
Profit Margin
29%
Acquisition Multiple
2.5x - 4.5x
Startup Cost
$25K - $150K
How It Works
You sign annual contracts with HOAs, retail centers, industrial sites, and property managers to inspect BMPs, remove sediment, clear vegetation, document maintenance, and coordinate repairs. Revenue comes from recurring inspection retainers plus higher-ticket cleanup and rehabilitation jobs after heavy weather or failed inspections. The reporting burden is what keeps customers around.
Revenue Range
Real Acquisitions in This Category
SBA 7(a) change-of-ownership loans · NAICS 562998 · All Other Miscellaneous Waste Management Services
Deal Size Distribution
Deal Flow Over Time
Financing Profile
Recent Comparable Deals
| Closed | State | Loan | Implied deal |
|---|---|---|---|
| Nov 2025 | MN | $312K | $367K |
| Sep 2025 | AZ | $333K | $392K |
| Mar 2025 | FL | $619K | $728K |
| Oct 2024 | WI | $166K | $195K |
| Sep 2024 | IA | $4.5M | $5.3M |
| Jul 2024 | MI | $2.8M | $3.3M |
| May 2024 | CA | $215K | $253K |
| Dec 2023 | WY | $150K | $177K |
| Sep 2023 | CA | $1.8M | $2.1M |
| Sep 2023 | NY | $629K | $740K |
Source: SBA 7(a) FOIA dataset, filtered to acquisitions (loans where business age is "Change of Ownership"). Implied deal size assumes an 85% loan-to-purchase ratio, a common SBA change-of-ownership structure. Charge-off rate shown only when 10+ loans have resolved (paid in full or charged off). Interest rates reflect last 24 months only. Actual deal values vary with equity injections, seller financing, and working capital terms.
Pros
- +Compliance creates recurring demand instead of purely discretionary work
- +Good fit for route density and annual maintenance contracts
- +Cross-sells into drainage repair, vacuum truck work, and erosion control
- +Competition is thinner than in generic landscaping or pressure washing
Cons
- -Local regulations vary and can be annoyingly specific
- -Some work requires confined-space or specialty subcontractors
- -Weather can bunch up demand and scheduling
Best For
Operators comfortable selling into property managers and municipalities who want a sticky, compliance-driven outdoor services niche
Operating Costs
Biggest costs are labor, trucks and trailers, sediment disposal, insurance, camera/reporting tools, and subcontracted vacuum or excavation work when systems are clogged. Margins improve with dense maintenance routes and standardized reporting templates.
SBA Financing Estimator
Adjust the deal — see if it cash flows after debt service
Estimates only. Excludes owner compensation, capex, working capital draws, and taxes. Margin assumes average occupancy and volume. Actual SBA terms vary by lender and borrower profile.
Where to Buy
Federal stormwater BMP framework and compliance context
Example of annual inspection contracts with property owners and managers
Marketplace where drainage, environmental, and maintenance firms sometimes appear
Acquisition Score
Scores margin (30), entry multiple (25), SBA market depth (20), category risk (15), and deal momentum (10). Higher = better acquisition candidate.
Quick Facts
- Category
- service
- Difficulty
- 4/5
- Buy price
- $1.6M–$2.9M
Buyer's Toolkit
Essential tools to get started
Some links may be affiliate links. We only recommend tools we'd use ourselves.
Ready to Buy? Start Here →
Largest business-for-sale marketplace in the US
SBA loans and business acquisition financing — get funded fast
ROBS financing — use retirement funds to buy a business tax-free
Bookkeeping for small business owners — hands-off financials
Some links may be affiliate links. We only recommend tools we'd use ourselves.
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