Guides
A Contractor's Guide to Drain Cleaning Contract Terms That Prevent Disputes
Use drain cleaning contract terms to define scope, warranty, change orders, payment, state lien notices and safety records before dispatch.
What to take away
- Drain cleaning contract terms should identify the line, pipe diameter, access point, cleaning method and endpoint, and say what happens if the line cannot be cleared.
- Get the license number, certificate of insurance and written warranty before dispatch. Check the license with the applicable state authority.
- Require a signed change order before added work or a price change, and put the price, payment due date, any late fee and permit responsibility in writing.
- Texas, Florida and Ohio have different lien rules. Name the applicable statute and required notice or affidavit in the job file; deadlines depend on the state and the parties’ roles.
Drain cleaning contract terms agreed to before dispatch can determine whether a callback costs you a Saturday or costs you nothing. A drain call is scheduled fast, and the paperwork is usually written after the fact. That order is backwards.
Scopes that are actually different jobs
"Drain cleaning" covers at least four separate tasks, and each carries its own risk. A kitchen sink line cleared with a hand snake is not the same job as a four-inch main cleared with a jetter, and neither is a sewer line that needs excavation.
A useful drain service agreement states the pipe diameter, the access point used, the cleaning method and whether the technician reached the main or stopped at a branch. It also states what happens if the line cannot be cleared. Without that sentence, the customer expects a working drain and you have delivered an attempt.
Put the warranty in the same document and identify the line it covers, its duration and its exclusions. A 30-day clog warranty on a branch line is an example of a term to define, not a universal rule. Do not imply that a one-year warranty applies to a main that was already bellied; state the actual coverage and limits.
Questions to ask before you sign anything
Use these word for word. The answers tell you more than the price does.
Questions to ask
- "What is your license number, and which state issued it?"
- "Will the written scope name the pipe diameter, the access point and the method?"
- "What does your warranty cover, and for how many days?"
- "Who pays for a second visit if the same line clogs next week?"
- "How do you handle a price change once the crew is on site?"
Evidence to request
Ask for the certificate of insurance and check the general liability limit. Ask for the warranty as a written document, not a verbal promise. Ask for a sample invoice, because the invoice is where disputed line items appear.
Contractors who do commercial work should also show a confined space program. OSHA's Permit-Required Confined Spaces standard, 29 CFR 1910.146, covers entry permits, atmospheric testing and rescue requirements in covered general-industry work; the construction standard, 29 CFR 1926 Subpart AA, applies when the work is construction. The agency's confined space pre-entry checklist is a fair test of whether a crew actually runs one.
Answers that should end the conversation
Three replies should stop the signing process until the issue is resolved.
- "We don't put the warranty in writing, but we stand behind our work." Get the warranty and its limits in writing before work begins.
- "The price depends on what we find, we'll sort it out after." Require a signed change order before added work or a price change.
- "We're licensed, but I don't have the number handy." Check the license with the authority that covers the job: the Texas State Board of Plumbing Examiners license search, the Florida Department of Business and Professional Regulation's Verify a License search, or the Ohio Department of Commerce's Ohio Construction Industry Licensing Board. Licensing requirements and lookup coverage vary by trade and location, so confirm the applicable authority.
What the contract must say
Payment and lien requirements depend on the state, project and contractor's role. In Texas, Texas Property Code chapter 53 governs mechanic's liens. For many nonresidential subcontractor claims, §53.052 sets a filing deadline of the 15th day of the fourth calendar month after the claimant last furnished labor or materials; original contractors and residential work have different rules and notices may be due earlier. The filing is a mechanic's-lien affidavit, with required contents addressed in §53.054.
In Florida, Florida Statutes chapter 713 governs construction liens. A subcontractor or supplier without a direct contract with the owner generally must serve a Notice to Owner within 45 days after first furnishing labor or materials, subject to statutory exceptions; see §713.06. In Ohio, Ohio Revised Code chapter 1311 governs mechanic's liens. A Notice of Furnishing under §1311.05 may apply on projects with a Notice of Commencement, and §1311.06 generally sets a 60-day affidavit-filing period for a one- or two-family dwelling and a 75-day period for most other projects. These are not one-size-fits-all deadlines: confirm the current statute and the job's facts before relying on a deadline.
Every agreement should state the price, payment due date, any late fee, and who pays for permits. It should require a signed change order for added work or a price change, and state the warranty period and limits. The linked quote template shows how to lay out those terms on one page.
Model drain cleaning term sheet
Use this as sample language and fill in the job-specific details before signing:
- Scope:“Contractor will clean [identified line and pipe diameter] through [access point] using [method], reaching [depth or endpoint]. This service is limited to an attempt to clear that line and does not include excavation, repair or replacement. If the line cannot be cleared, contractor will stop and obtain a signed change order before doing additional work.”
- Price and payment:“Customer will pay [agreed price] by [due date]. Any late fee, if applicable, and responsibility for permits must be stated here.”
- Changes:“No added work or price change is authorized without a written change order signed by the customer and contractor before the added work begins.”
- Warranty:“For 30 days after service, contractor will return to address recurrence of the same blockage in the identified branch line. This warranty does not cover a new blockage caused by grease or roots, a different line, or a pre-existing condition documented before service.” State separately whether any warranty applies to a main line; do not imply a one-year warranty unless the parties expressly agree to it.
- Lien and records:Identify the state lien requirements that apply to the job and the party responsible for each notice or filing. Attach the written warranty, certificate of insurance and an itemized invoice showing the work performed.
A contract that fits on one page and names the pipe, the price and the warranty beats a five-page agreement nobody reads before signing.
