A step-by-step LOI guide built for buyers and sellers of drain cleaning companies — covering equipment valuation, recurring contract protections, technician retention, and SBA-compatible deal structures in the $1M–$5M revenue range.
A Letter of Intent (LOI) is the critical first binding step in acquiring a drain cleaning or hydro jetting business. It establishes the purchase price, deal structure, due diligence timeline, and key conditions before either party invests significant legal and advisory fees. In the drain and sewer services industry, a well-drafted LOI must go beyond boilerplate acquisition language to address issues unique to this trade: the condition and remaining useful life of hydro jetting trucks, vacuum excavators, and CCTV inspection systems; whether commercial maintenance contracts and municipal accounts are assignable; the risk of customer relationships following the owner rather than the business; and how technician retention will be handled during the transition. Because most drain cleaning acquisitions in the $1M–$5M revenue range are SBA 7(a) eligible, the LOI should also reflect a capital structure the lender can underwrite — typically 80–90% SBA financing, a 5–10% seller note subordinated to the senior debt, and 10–15% buyer equity injection. Whether you are a plumbing company acquirer adding a specialty drain division, a private equity-backed home services platform executing a tuck-in, or a first-time buyer acquiring an owner-operated drain service, this template gives you a defensible starting point that signals professionalism and protects your position through closing.
Find Drain Cleaning & Hydro Jetting Businesses to AcquireParties and Business Identification
Identify the buyer entity, the seller, and the legal name and operating name of the drain cleaning business being acquired. Specify whether the transaction is structured as an asset purchase or stock purchase, which has significant implications for equipment depreciation, liability transfer, and SBA lender requirements.
Example Language
This Letter of Intent is entered into as of [Date] by and between [Buyer Legal Entity], a [State] [LLC/Corporation] ('Buyer'), and [Seller Full Legal Name] ('Seller'), the owner of [Business Legal Name] d/b/a [Operating Name] ('Company'), a drain cleaning and hydro jetting services business located at [Primary Business Address]. The parties intend to structure this transaction as an asset purchase, with Buyer acquiring substantially all operating assets of the Company including but not limited to hydro jetting equipment, CCTV inspection systems, commercial vehicles, customer contracts, trade name, telephone numbers, and goodwill, free and clear of all liens and encumbrances except as otherwise noted herein.
💡 Asset purchases are strongly preferred by SBA lenders and most buyers in this industry because they allow a step-up in depreciation basis on equipment and limit assumption of legacy liabilities such as prior sewer damage claims or employment disputes. Sellers often prefer stock sales for tax treatment reasons. If a stock sale is requested, build in explicit representations and warranties covering undisclosed liabilities, pending insurance claims, and equipment liens before agreeing.
Purchase Price and Valuation Basis
State the proposed total purchase price, the valuation methodology used to arrive at that number, and how the price was derived from the business's Seller's Discretionary Earnings. Drain cleaning businesses in the lower middle market typically trade at 2.5x–4.5x SDE depending on recurring revenue mix, equipment condition, and customer diversification.
Example Language
Buyer proposes a total purchase price of $[X,XXX,000] ('Purchase Price'), representing approximately [3.0–3.5]x the Company's trailing twelve-month Seller's Discretionary Earnings of $[XXX,000] as represented by Seller. This multiple reflects the Company's established commercial maintenance contract base, condition of the hydro jetting fleet, and management depth. The Purchase Price is subject to adjustment following Buyer's completion of financial due diligence, equipment inspection, and customer concentration analysis. Buyer reserves the right to renegotiate the Purchase Price if SDE is materially lower than represented, if any hydro jetting unit or CCTV system requires capital replacement within 18 months of closing, or if any single customer is found to represent more than 20% of trailing revenue.
💡 Sellers of drain cleaning businesses frequently calculate SDE in ways that inflate earnings — adding back owner compensation at an artificially low rate, excluding personal vehicle expenses run through the company, or not accounting for deferred maintenance on aging jetting trucks. During due diligence, buyers should independently recast financials and obtain a third-party equipment appraisal. Price adjustments tied to equipment condition are common and should be explicitly reserved in the LOI to avoid disputes at closing.
Deal Structure and Financing
Outline how the purchase price will be funded, including the SBA loan amount, seller note terms, earnout provisions if applicable, and buyer equity injection. Clarity on financing structure protects both parties and confirms the deal is bankable before entering extended due diligence.
Example Language
The Purchase Price shall be funded as follows: (i) SBA 7(a) loan proceeds of approximately $[X,XXX,000] representing [80–85]% of the Purchase Price, subject to lender approval; (ii) a seller note of $[XXX,000] representing [10]% of the Purchase Price, subordinated to the SBA senior debt, bearing interest at [6]% per annum, with a 60-month repayment term commencing 12 months post-closing, subject to SBA standby provisions; and (iii) Buyer equity injection of $[XXX,000] representing [10–15]% of the Purchase Price sourced from Buyer's personal funds and/or equity rollover. In addition, Buyer proposes a performance earnout of up to $[XXX,000] payable over 24 months post-closing, contingent on retention of commercial maintenance contract revenue at no less than [85]% of the trailing twelve-month contracted revenue amount.
💡 Sellers often push back on earnouts, viewing them as a deferred risk that may never pay out. Frame the earnout as a bridge for the valuation gap on commercial contracts that are not yet formally assigned to the buyer entity. Tie earnout metrics specifically to commercial maintenance contract retention rather than total revenue, which gives the seller clearer line-of-sight to earning it through the transition period. Ensure the seller note standby agreement is reviewed by the SBA lender early — some lenders require full standby for the first 24 months.
Included and Excluded Assets
Specifically enumerate the major assets included in the transaction — particularly the fleet and equipment — and identify any assets the seller intends to retain. Vague asset schedules are among the most common sources of closing disputes in equipment-heavy service businesses like drain cleaning.
Example Language
The following assets shall be included in the Purchase Price: all hydro jetting units (including truck-mounted and trailer-mounted systems), CCTV pipeline inspection cameras and control systems, vacuum excavation equipment, drain snaking machines, service vans and commercial vehicles as listed on Schedule A, all tools and consumables, customer lists, maintenance contract agreements, trade name and DBA registrations, telephone numbers, website and domain, Google Business Profile, and social media accounts. The following assets are expressly excluded from the transaction: Seller's personal vehicle [VIN XXXXXX], Seller's personal cell phone number, and any accounts receivable generated prior to the closing date unless otherwise agreed. Seller represents that all included equipment is free and clear of liens as of the closing date, or that all liens will be discharged at closing from sale proceeds.
💡 Pay particular attention to the CCTV inspection systems and high-pressure jetting trucks — these are the highest-value and most operationally critical assets in the business. Obtain serial numbers for all major equipment and run lien searches. Sellers sometimes assume personal vehicle titles have been transferred to the business, or vice versa. Confirm title on every commercial vehicle included in the deal. If any equipment is leased rather than owned, identify the lessor and confirm assignability before closing.
Due Diligence Period and Access
Define the length of the due diligence period, what access the buyer requires, and what materials the seller must provide. In drain cleaning acquisitions, due diligence must cover financial records, equipment maintenance history, customer contract assignability, technician employment records, and insurance and claims history.
Example Language
Buyer shall have [45] calendar days from the date of Seller's acceptance of this Letter of Intent ('Due Diligence Period') to complete its investigation of the Company. During this period, Seller shall provide Buyer and Buyer's advisors with full access to: (i) three years of federal business tax returns and monthly profit and loss statements; (ii) complete maintenance logs and service records for all hydro jetting units, CCTV systems, and commercial vehicles; (iii) copies of all active commercial service agreements, municipal contracts, and grease trap maintenance agreements with renewal terms and assignability provisions; (iv) technician employment agreements, pay records, certifications, and applicable trade licenses; (v) insurance certificates, claims history for the past five years including any sewer damage or property flooding incidents; and (vi) customer revenue reports segmented by account for the trailing 24 months. Buyer may conduct a physical inspection of all equipment at the Company's facility with a qualified third-party equipment appraiser.
💡 Sellers of owner-operated drain businesses are often reluctant to share customer lists early in the process for fear of losing accounts if the deal falls through. Consider staging the due diligence disclosure — financial records and equipment documentation first, then customer-level data once the buyer has demonstrated financing capability. Include a strong confidentiality agreement as an exhibit to the LOI before any sensitive materials are exchanged. For equipment inspection, hire an independent diesel mechanic and a hydro jetting equipment specialist rather than relying solely on maintenance records provided by the seller.
Exclusivity and No-Shop Provision
Establish a period during which the seller agrees not to solicit or entertain other offers while the buyer completes due diligence and secures financing. This protects the buyer's investment of time and advisory fees during the diligence process.
Example Language
In consideration of Buyer's commitment of time and resources to the due diligence process, Seller agrees that for a period of [60] calendar days following execution of this Letter of Intent ('Exclusivity Period'), Seller shall not, directly or indirectly, solicit, negotiate, or accept any offer for the purchase or acquisition of the Company or its assets from any third party. Seller shall promptly notify Buyer if any unsolicited offer is received during the Exclusivity Period. Buyer may request a single extension of the Exclusivity Period of up to [15] days if SBA lender processing delays occur, with written notice to Seller no less than 5 days prior to expiration.
💡 Sixty days is the standard exclusivity window for SBA-financed acquisitions in the drain services industry, where lender processing can run 45–60 days on its own. If the seller pushes for a shorter exclusivity window of 30–45 days, negotiate a clear extension mechanism tied to documented lender milestones rather than leaving it to mutual agreement. The seller's concern is usually that a longer exclusivity period takes their business off-market for too long — address this by demonstrating that your SBA pre-approval letter or proof of funds is already in place.
Seller Transition and Non-Compete
Define the seller's post-closing obligations including a training and transition period, employment or consulting arrangement if applicable, and the geographic and duration scope of the non-compete covenant. Transition support is especially critical in drain cleaning businesses where the seller often holds key commercial relationships.
Example Language
Seller agrees to provide Buyer with a transition assistance period of [90] days following the closing date, during which Seller shall (i) introduce Buyer to all commercial maintenance account contacts, municipal contract administrators, and key commercial customers; (ii) train Buyer or designated management on dispatch operations, job estimating, technician supervision, and vendor relationships; and (iii) remain available for up to [10] hours per week by telephone or on-site as reasonably requested by Buyer. Seller shall receive compensation of $[X,000] per month during the transition period. As a condition of closing, Seller shall execute a non-compete covenant prohibiting Seller from directly or indirectly owning, operating, or providing drain cleaning, hydro jetting, or sewer inspection services within [50] miles of the Company's primary service area for a period of [5] years following the closing date.
💡 Sellers sometimes resist a 90-day transition, particularly if they are retiring and eager to disengage. Structure the transition compensation generously enough to incentivize their participation — a seller who is financially motivated to show up will make more introductions. The non-compete scope should specifically name the services — drain cleaning, hydro jetting, CCTV sewer inspection, grease trap maintenance — rather than broadly referencing 'plumbing services,' which may be unenforceable depending on state law. Five years is standard; three years is the minimum acceptable in a relationship-driven trade services business.
Conditions to Closing
List the material conditions that must be satisfied before the buyer is obligated to close the transaction. This section protects the buyer from being locked into a deal if key assumptions prove false during due diligence.
Example Language
Buyer's obligation to consummate the acquisition is conditioned upon satisfaction of each of the following: (i) completion of due diligence to Buyer's satisfaction in its reasonable discretion; (ii) receipt of SBA 7(a) loan commitment in an amount and on terms acceptable to Buyer; (iii) assignment or novation of all commercial maintenance contracts and municipal service agreements, with no material adverse changes to contract terms; (iv) confirmation that all key technicians — specifically [Lead Technician Name] and [Second Technician Name] — have agreed to remain employed with the Company post-closing on mutually acceptable terms; (v) satisfactory third-party appraisal and inspection of all major equipment with no identified capital expenditure requirements exceeding $[XX,000] within the first 12 months post-closing; (vi) no material adverse change in the business, revenues, or customer base between the LOI execution date and the closing date; and (vii) seller's delivery of all required consents, assignments, and governmental approvals necessary to transfer business licenses and contractor registrations.
💡 Technician retention as a closing condition is non-negotiable in drain cleaning acquisitions given the severe skilled labor shortage in the trades. Name the key technicians explicitly rather than referencing them generically. If a named technician declines to stay, you need the right to renegotiate the price or walk away without losing your deposit. Equipment capital expenditure thresholds should be based on the third-party appraiser's findings — set the cap at a dollar amount that reflects what you can absorb without adjusting the purchase price rather than an arbitrary figure.
Binding and Non-Binding Provisions
Clarify which sections of the LOI are legally binding and which are expressions of intent only. This is a standard but important legal distinction that protects both parties if the deal does not proceed to closing.
Example Language
The parties acknowledge and agree that this Letter of Intent is not a binding agreement to consummate the proposed transaction, and that neither party shall have any legal obligation to proceed with the acquisition unless and until a definitive Asset Purchase Agreement has been fully executed by both parties. Notwithstanding the foregoing, the following provisions of this Letter of Intent shall be legally binding upon the parties from the date of execution: (i) the exclusivity and no-shop provision set forth in Section 6; (ii) the confidentiality obligations of both parties with respect to the terms of this LOI and all due diligence materials exchanged; and (iii) each party's obligation to bear its own costs and expenses incurred in connection with the proposed transaction unless otherwise agreed in writing.
💡 Sellers sometimes misread LOIs as binding purchase commitments and become upset when buyers exercise due diligence rights to renegotiate. Be explicit about the non-binding nature of the price and structure in any conversations alongside the written language. Conversely, the binding exclusivity provision is what gives the buyer real protection — make sure the seller's attorney has reviewed and acknowledged it rather than treating the LOI as a simple handshake document.
Equipment Condition Adjustment Mechanism
Drain cleaning acquisitions are highly capital-intensive — a single truck-mounted hydro jetting unit can cost $80,000–$150,000 new. Negotiate a purchase price adjustment mechanism tied to the results of a third-party equipment appraisal conducted during due diligence. Define a threshold (e.g., any capital replacement requirement exceeding $50,000 within 18 months of closing) that triggers a dollar-for-dollar price reduction or seller obligation to address the deficiency prior to closing. Without this provision, buyers frequently discover aging equipment issues after the LOI is signed and have no contractual basis to adjust the price.
Commercial Contract Assignability and Consent
Municipal service agreements, restaurant grease trap maintenance contracts, and commercial property management accounts are the highest-value recurring revenue streams in a drain cleaning business. Confirm in the LOI that Seller is obligated to obtain written consent from all commercial and municipal account holders prior to closing for contract assignment to the buyer entity. If any material contract — defined as one representing more than 5% of annual revenue — cannot be assigned or is terminated as a result of the change of ownership, this should trigger a purchase price adjustment or earnout reduction equal to a defined revenue multiple.
Technician Retention Incentive Responsibility
Key technicians — particularly certified hydro jetting operators and CCTV inspection technicians — are frequently the most valuable non-equipment assets in a drain cleaning business. Negotiate which party is responsible for funding retention bonuses or signing incentives to secure technician commitments prior to closing. Buyers should push for the seller to fund retention payments from sale proceeds rather than absorbing that cost separately. Define a minimum retention threshold (e.g., all technicians with 2+ years of tenure) that must be met as a condition to closing, and establish what happens to the purchase price if that threshold is not achieved.
Earnout Measurement Methodology for Recurring Revenue
If the deal includes an earnout tied to commercial maintenance contract retention, the LOI must define precisely how recurring revenue will be measured — which contract types count, how month-to-month agreements are treated versus annual contracts, and whether new commercial accounts signed post-closing by the buyer can offset lost legacy accounts. Sellers will want broad credit for any commercial revenue; buyers will want to measure only contracts that existed at closing. Agree on a baseline contract revenue schedule to be attached as an exhibit to the definitive purchase agreement and confirm the accounting methodology for measuring post-closing performance.
Seller Note Subordination and Standby Terms
When an SBA 7(a) loan is used, the SBA requires the seller note to be fully subordinated to the senior debt. Depending on the loan structure and lender requirements, the seller may be required to stand by — receiving no principal or interest payments — for the first 24 months post-closing. Sellers who are not experienced with SBA transactions are frequently surprised by this requirement and may view it as a deal-killer. Address this explicitly in the LOI so the seller has time to consult with their advisors before the deal progresses to the purchase agreement stage. If a standby period is required, structure the earnout or transition compensation to provide the seller with some cash flow during that window.
Liability Tail Coverage for Pre-Closing Sewer Damage Claims
Hydro jetting operations carry meaningful liability risk — high-pressure water can damage aging sewer pipes, cause property flooding, or disturb underground utilities. Negotiate in the LOI which party is responsible for claims arising from pre-closing operations. Require the seller to maintain their existing general liability and commercial auto insurance policies through the closing date and to carry an extended reporting period endorsement ('tail coverage') for a minimum of 24 months post-closing covering incidents that occurred before the transaction date. Confirm that Buyer will not assume any open claims, pending litigation, or regulatory proceedings as part of the asset purchase.
Find Drain Cleaning & Hydro Jetting Businesses to Acquire
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Drain cleaning and hydro jetting businesses in the $1M–$5M revenue range typically trade at 2.5x–4.5x Seller's Discretionary Earnings. Businesses at the high end of that range have documented commercial maintenance contracts, a well-maintained and late-model fleet of hydro jetting trucks and CCTV inspection systems, a diversified customer base across residential, commercial, and municipal segments, and a trained technician team that reduces owner dependency. Businesses at the lower end tend to have aging equipment, high owner dependency, limited recurring revenue, and inconsistent financial records. When drafting your LOI, use the multiple as a starting point and build in explicit price adjustment mechanisms tied to equipment appraisal results and customer concentration findings from due diligence.
The large majority of drain cleaning acquisitions in this size range are structured as asset purchases, and this is the structure most SBA lenders require. An asset purchase allows the buyer to step up the depreciation basis on expensive equipment like hydro jetting units and CCTV systems, limits assumption of legacy liabilities including historical sewer damage claims or undisclosed debt, and simplifies the transfer of licenses and permits. Stock purchases can offer sellers favorable capital gains treatment, but buyers assume all historical liabilities of the entity. If a seller pushes for a stock sale, require comprehensive representations and warranties insurance or a meaningful escrow holdback to protect against undisclosed claims.
Customer concentration is one of the top due diligence concerns in drain cleaning acquisitions. In your LOI, include a provision requiring the seller to provide a full customer revenue breakdown by account for the trailing 24 months as part of due diligence. Reserve the right to renegotiate the purchase price if any single customer accounts for more than 20% of revenue, or if the top three customers collectively represent more than 40% of revenue. If concentration exists, consider structuring part of the purchase price as an earnout tied to customer retention metrics over the 12–24 months post-closing rather than paying the full price at close.
Technician retention should be addressed explicitly as a closing condition, not left to post-signing hope. In the LOI, identify key technicians by name or role — particularly licensed hydro jetting operators and CCTV inspection technicians — and require that they have agreed to continue employment with the business post-closing as a condition to the buyer's obligation to close. Negotiate which party funds retention bonuses, typically drawn from seller proceeds. The seller is generally better positioned to have these conversations since they have the existing relationship. Define a minimum retention threshold and establish a clear price adjustment or termination right if it is not met.
For a drain cleaning or hydro jetting business acquisition using SBA financing, a 45-day due diligence period is the practical minimum, and 60 days is more appropriate when the business has a significant commercial contract base or a large equipment fleet requiring third-party appraisal. SBA lender processing alone can consume 30–45 days of this window. Build in an extension mechanism in the LOI — typically a 15-day extension at the buyer's election with written notice — to protect against lender delays that are outside the buyer's control. Use the due diligence period to complete financial recast, equipment inspection, customer contract review, insurance claims history, and technician employment verification in parallel rather than sequentially.
Yes. Drain cleaning and hydro jetting businesses are generally strong candidates for SBA 7(a) financing. They are established operating businesses with tangible assets, documented cash flow, and essential service demand characteristics that SBA lenders view favorably. A typical SBA-financed drain cleaning acquisition involves 80–90% SBA loan coverage of the purchase price, a seller note of 5–10% subordinated to the senior debt, and a buyer equity injection of 10–15%. Buyers should obtain an SBA pre-qualification letter or work with an SBA preferred lender before submitting an LOI so they can confirm financing capability to the seller during the exclusivity negotiation.
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