Waterproofing Company EBITDA Multiples: 3.0x–5.5x — What Buyers Pay (2026)
What buyers are paying for waterproofing businesses in 2024 — and what drives your multiple up or down.
Waterproofing companies in the $1M–$5M revenue range typically sell for 3x–5.5x EBITDA. Buyers pay premiums for recurring maintenance contracts, diversified residential and commercial revenue, and crews that operate without owner involvement. Warranty liability, owner dependency, and inconsistent financials remain the top valuation suppressors in this fragmented, high-demand industry.
Waterproofing Company EBITDA Multiples (2026)
| Practice Size | EBITDA Range | Multiple Range | Notes |
|---|---|---|---|
| Entry-Level | $150K–$300K | 3.0x–3.75x | High owner dependency, inconsistent revenue, limited recurring contracts, aging equipment, or significant warranty backlog concerns. |
| Mid-Market | $300K–$500K | 3.75x–4.5x | Stable revenue mix, some recurring service agreements, licensed crew in place, clean books with modest add-backs. |
| Strong Performer | $500K–$750K | 4.5x–5.0x | Documented maintenance contracts, diversified client base, operational management layer, and consistent EBITDA growth over 3 years. |
| Premium Asset | $750K+ | 5.0x–5.5x | Scalable systems, branded waterproofing process, strong Google presence, recurring revenue exceeding 20% of total, and minimal owner dependency. |
Valuation Drivers — What Makes Your Multiple Higher or Lower
The spread between 3.5x and 6.5x is not random. These seven factors determine where your firm lands.
Recurring Revenue Contracts
PositiveAnnual sump pump inspections, maintenance agreements, and drainage service contracts directly increase multiples by reducing reliance on one-time project revenue.
Warranty Liability Exposure
NegativeUndisclosed warranty backlogs or high historical callback rates are the fastest way to reduce valuation or kill deals entirely during due diligence.
Owner Dependency
NegativeIf the owner handles estimating, sales, and client relationships personally, buyers discount heavily due to transition risk and revenue continuity concerns.
Revenue Mix Diversification
PositiveA healthy split between residential, commercial, and municipal contracts — with no single customer exceeding 15% of revenue — supports higher multiples.
Equipment and Fleet Condition
PositiveWell-maintained injection rigs, vehicles, and drainage tools reduce buyer capex risk and support full-price offers, especially in SBA-financed transactions.
Recent Market Trends
PE-backed home services roll-up platforms are actively acquiring waterproofing contractors, compressing deal timelines and pushing multiples toward the higher end of the range for clean assets. SBA 7(a) financing remains the dominant deal structure for owner-operator buyers. Warranty liability management and recurring revenue documentation are now table-stakes diligence items that directly influence final pricing and deal structure.
Who Buys Waterproofing Companys in 2026
Individual Operator / Search Fund
Entrepreneurship through acquisition (ETA), first-time buyers, industry-adjacent operators
What they want: Stable, transferable cash flow in a Waterproofing Company. SBA-eligible business, strong recurring revenue contracts, and a seller available for a 12–18 month transition.
Pros for seller
- +SBA 7(a) financing means 10% buyer equity — faster than waiting for institutional capital
- +Buyer works inside the business, maintaining client and staff relationships
- +Deal structure is typically straightforward: cash at close plus seller note
Cons for seller
- −Lower multiples than PE buyers — typically at the low-to-mid end of the range
- −Requires meaningful seller involvement post-close for transition
- −SBA approval timeline adds 60–90 days to closing
PE-Backed Roll-Up Platform
Private equity consolidators building a Waterproofing Company portfolio, regional or national platforms
What they want: Scale, operational quality, and geographic coverage. Strong recurring revenue contracts with minimal warranty liability exposure. Clean financials, documented systems, and staff who can operate without the selling owner.
Pros for seller
- +All-cash close with no SBA financing contingency or approval delay
- +Highest multiples available for premium businesses
- +Equity rollover option — seller keeps 10–30% stake and participates in platform exit
Cons for seller
- −Extensive 90–150 day due diligence process
- −Post-close integration into a larger platform changes operating culture
- −Usually requires seller to remain in a leadership role for 12–24 months
Strategic Acquirer
Larger Waterproofing Company operators, adjacent-industry buyers adding capacity or geography
What they want: Client relationships, staff, and market position that complement existing operations. Recurring Revenue Contracts is especially valuable when it fills a gap the buyer cannot build organically.
Pros for seller
- +Can pay above-model multiples for strong strategic fit
- +Buyer already understands the business — diligence moves faster
- +Shorter transition requirement when operational overlap exists
Cons for seller
- −Fewer competing buyers — less negotiating leverage
- −Non-compete scope is typically broader than PE or individual deals
- −Operations and brand may change significantly post-close
Sample Waterproofing Company Transactions
Residential basement waterproofing contractor in the Midwest with maintenance agreement program, licensed crew of 6, and absentee-owner sales manager in place.
$420K
EBITDA
4.4x
Multiple
$1.85M
Price
Mixed residential and commercial waterproofing company in the Southeast with proprietary interior drain tile system, strong Google reviews, and no single customer over 10% of revenue.
$680K
EBITDA
5.0x
Multiple
$3.4M
Price
Owner-operated foundation waterproofing business with $280K EBITDA, high add-backs, no documented warranty process, and owner responsible for all estimates and sales.
$280K
EBITDA
3.25x
Multiple
$910K
Price
EBITDA Valuation Estimator
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Industry: Waterproofing Company · Multiples based on 3.75x–4.5x (Mid-Market)
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How to Use These Multiples
For Sellers: 4-Step Valuation Walkthrough
- 1
Compile three years of P&L statements and tax returns that reconcile line by line — SBA lenders and institutional buyers both require this, and any unexplained gap triggers diligence delays or price renegotiation.
- 2
Build a normalized EBITDA schedule with every add-back documented: owner W-2 above a market-rate manager salary, personal expenses, one-time items, and non-recurring costs. Undocumented add-backs get cut.
- 3
Address your warranty liability exposure before going to market — this is the most common reason Waterproofing Company businesses receive offers at the low end of the 3x–5.5x range. Buyers identify it in diligence and reprice accordingly.
- 4
Quantify and document your recurring revenue contracts with supporting records: contracts, renewal histories, and client revenue breakdowns. This is the primary evidence for commanding a premium multiple — have it ready before the first buyer call.
For Buyers: Validate the Asking Multiple
- 1
Request trailing 12-month and 3-year P&L with bank statement backup before making an offer. If a Waterproofing Company seller cannot produce reconciled financials, that signals what the full diligence process will look like.
- 2
Verify the recurring revenue contracts claims independently — pull contract copies, renewal documentation, and client-level revenue data. This is the primary driver of whether this Waterproofing Company is worth 5.5x or 3x.
- 3
Assess warranty liability exposure directly: ask which revenue or client relationships depend on the current owner personally, and what the transition plan is. An exit-ready seller has already worked through this.
- 4
Model your SBA debt service against verified EBITDA before signing the LOI. At current rates, a $1M SBA 7(a) loan runs approximately $13,000/month over 10 years — the business needs at least 1.25x debt service coverage after a market-rate manager salary.
Frequently Asked Questions
What EBITDA multiple should I expect when selling my waterproofing company?
Most waterproofing businesses sell between 3x–5.5x EBITDA. Recurring contracts, clean financials, and reduced owner dependency push multiples toward the higher end of that range.
How does warranty liability affect the sale price of a waterproofing business?
Buyers scrutinize warranty backlog carefully. Large undisclosed obligations or high callback rates often trigger price reductions, earnouts, or escrow holdbacks to offset post-close liability risk.
Can I use an SBA loan to buy a waterproofing company?
Yes. Waterproofing businesses are SBA-eligible. Most SBA 7(a) deals involve 80–90% bank financing, 10% buyer equity, and sometimes a 10% seller note to bridge any financing gap.
What makes a waterproofing company more attractive to PE roll-up buyers?
Roll-up platforms prioritize recurring revenue, scalable operations, licensed technicians, and strong local SEO. Branded systems and documented SOPs significantly accelerate deal interest and valuation.
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