Useful video
Understand how drain problems are diagnosed
Watch for the distinction between a single-fixture problem and symptoms that can point farther downstream. Do not enter a sewer, open unsafe cleanouts, or accept a replacement scope without recorded camera evidence and a clearly located defect.
Video: How to Diagnose Plumbing Drain Problems | Ask This Old House by This Old House.
Watch directly on YouTubeWrite Down What You Have Observed Before You Call
Before contacting anyone, create a short written log of the symptoms, when they started, and how they have changed. Note which fixtures are affected, whether the trouble is constant or comes back after heavy use, and whether outside conditions such as rainfall seem connected. Photograph or video anything visible, such as standing water near a floor drain or a wet patch in the yard, and save the files with dates.
This log does two things when you call. First, it helps the scheduler understand whether this is a situation the homeowner needs addressed quickly, so you can describe urgency in your own words rather than guessing at categories. Second, it gives you a baseline to compare against after any cleaning or repair work is done.
- Which fixtures in my home drain slowly or back up, and how long has each been happening?
- Do I have any photos or video of the symptoms, and have I recorded the dates?
- Has anyone used chemical drain products on this line recently that the provider should know about?
Gather Property Information That Affects the Visit
Providers need access details to plan the visit and quote the work accurately. Locate and be ready to describe cleanouts, the general path of the sewer line if you know it, and any obstructions such as fences, sheds, decks, or parked vehicles that could limit equipment access. If you have prior inspection reports, plumbing records, or a disclosure document from when you bought the home, have them available.
You do not need to know the pipe material, depth, or length yourself. Those are things a camera inspection should establish. What you provide is access and history; what the provider provides is the condition assessment.
- Where are my cleanouts, and can they be reached without moving anything?
- Do I have any past sewer records, reports, or purchase disclosure documents to share?
- Is there anything on the property that could block the equipment the provider plans to bring?
Confirm Coverage and Ask About the Inspection First
Use each provider's official website to confirm service for your address rather than assuming coverage from advertising. Mr. Rooter Plumbing, Roto-Rooter, and Benjamin Franklin Plumbing each publish a locations page for this purpose. Their first-party sites also describe services such as drain cleaning and sewer work, so reading the local location page helps you confirm the exact company that would serve you.
When you make contact, focus the conversation on the evaluation step, not the repair. Ask what the diagnostic visit includes, whether it involves a camera inspection of the sewer line, and whether you receive a recording of that inspection. A recording matters because it lets a second provider review the same footage instead of forming an opinion from scratch, which makes your later comparison much more meaningful.
- Does the diagnostic visit include a camera inspection of the sewer line?
- Will I receive a copy of the inspection recording, and in what format?
- Is the evaluation a separate charge from the repair, or credited toward it if I proceed?
- Can the inspection distinguish between a blockage that can be cleared and damage that needs repair?
What a Complete Written Proposal Should Contain
A written proposal should let you picture the entire job from start to finish. Look for these elements and ask about any that are missing: the pipe material and the specific defect identified on camera, the length and depth of pipe affected, and how the crew will access the work area. The proposal should state whether the work is cleaning, spot repair, or full replacement of a section, and which repair method will be used.
Beyond the pipe itself, a thorough proposal addresses the surrounding job: locating underground utilities before excavation, obtaining permits and arranging inspections, how water use or occupancy of the home is affected while the line is out of service, backfill of the excavation, and restoration of lawns, driveways, or landscaping disturbed by the work. Finally, it should state what the warranty covers and, just as importantly, what it excludes.
- Which defect did the camera inspection show, and can I see that portion of the footage?
- What pipe material is in my line, and how was that determined?
- Who is responsible for the utility locate, permit, and inspection?
- How long will my household be without normal water and drain use?
Comparing Proposals Side by Side
Proposals can differ legitimately, so a comparison has to account for the differences rather than just the bottom line. Two proposals that look similar may describe different lengths of pipe, different access methods, or different amounts of surface restoration. Build a simple table with one column per provider and one row per scope item, then fill in each row before looking at price.
The checklist at the end of this article is designed for that table. If one proposal is missing a row entirely, that is a gap to resolve, not a reason to assume the cheapest scope is equivalent. A proposal with a fuller scope may describe more of the same job, not more work than you need.
- Are the two proposals describing the same length and method of repair?
- Does each proposal include the same surface restoration scope?
- What is excluded from each warranty, and how long does each last?
- What events would trigger a change order on this job?
How to Ask for Missing Details
When a proposal omits something, ask directly and request the answer in writing. A useful phrasing is to name the missing item and the reason you need it: for example, that you need the proposed repair method and its limits described in writing so you can compare it against another proposal covering the same pipe. Ask whether the provider can send a revised scope that answers your questions.
If a provider resists putting scope items in writing, treat that as information about the proposal itself rather than pressure to accept it. You can also ask whether an item is not applicable rather than omitted, which sometimes explains the gap. For instance, if restoration is not listed, ask whether the proposal assumes restoration is handled separately and by whom.
- Can you send me a revised written scope that includes backfill and surface restoration?
- Is this item missing from the proposal because it is excluded, or because someone else handles it?
- If conditions underground differ from the camera footage, how will the scope change be documented?
Scheduling, Access, and Life in the House During Work
Sewer work can affect daily life in ways that matter for planning, especially if the line serves the only bathroom or the work requires excavation in a driveway. Ask how the household's water and drain use is managed during each phase, whether the provider offers any interim arrangement if the work spans multiple days, and what hours the crew will be on site.
These questions also reveal coordination details that belong in the written proposal, such as who moves vehicles or gates, whether pets and children need to be kept away from open excavations, and how the crew handles weather delays. Confirm the answers are reflected in the final document before you sign.
- Will my household have any drain use while the line is out of service?
- How many working days should I plan for, and what happens if the job runs longer?
- Who restores fencing, irrigation, or landscaping affected by access?
Warranty Terms, Documentation, and Closing Out the Job
Before signing, read the warranty and exclusions section carefully and ask what documentation you will receive when the job is finished. Useful closing documents include the final inspection result if a permit was involved, the location of any new cleanouts or access points, and updated footage showing the repaired line. Ask whether warranty service requires the original proposal or inspection materials and how a claim is initiated.
Keeping these records together with your pre-call symptom log gives you a complete file for the property. If the same line ever has trouble again, you or a future owner can start from facts instead of memory.
- What exactly does the warranty cover, and what actions void it?
- Will I receive the permit inspection results and final camera footage?
- Where are the access points on my property now, and how do I reach warranty service?
Your proposal comparison checklist
- Symptom log with dates, affected fixtures, and photos or video
- Confirmed service for your address through each provider's official locations page
- Camera inspection included in the diagnostic visit
- Copy of the inspection recording in a format you can keep and share
- Pipe material and specific defect identified in writing
- Length and depth of pipe affected, stated clearly
- Access plan and any property features affected by equipment or excavation
- Repair method named, with cleaning or preparation described if needed
- Utility locate responsibility assigned
- Permit and inspection responsibility assigned
- Household impact during the work described, including water and drain use
- Backfill and surface restoration scope included
- Warranty terms, exclusions, and claim process in writing
- Change-order conditions stated, and any gaps resolved in writing before signing
Preparation turns a stressful repair into a manageable comparison. Document what you observe, confirm coverage through official provider websites, ask for a recorded inspection, and refuse to sign a proposal that leaves scope items vague. The side-by-side checklist above exists so you can fill in every row for every provider before price influences your decision. If a written proposal cannot answer a checklist row, the request for that answer is your next step, and the response tells you as much as the document would have.
Provider sources and limitations
These first-party websites support the directory’s provider identities and published contact routes. The preparation questions above are editorial suggestions, not a diagnosis, repair specification, treatment recommendation, or professional review.
- Benjamin Franklin Plumbing official website — checked 2026-09-06
- Mr. Rooter Plumbing official website — checked 2026-09-06
- Roto-Rooter official website — checked 2026-09-06