Company Facts
Jim Dandy Sewer & Plumbing at a Glance
The work
- Best for
- side sewer repair and replacement in older Seattle homes
- Primary service
- Plumbing
Where
- Headquarters
- Seattle, WA
- Service area
- Seattle
- Emergency service
- Business hours only
Money and guarantees
- Free estimates
- Not advertised
- Financing
- Not advertised
Editorial Review
Our Take on Jim Dandy Sewer & Plumbing
The sewer side of this business is the reason to call, and the service list backs that up with camera work, jetting, spot repairs and two trenchless replacement methods all listed separately. A 4.6 average from 407 reviews is a meaningful track record rather than a handful of happy neighbours. The 1908 founding claim is the company's own, so weigh it as a claim, and get the camera footage and permit details in writing before a big dig.
Best for: side sewer repair and replacement in older Seattle homes
What We Like
- Deep sewer focus, including camera inspection, spot repair and both trenchless replacement routes
- 4.6 rating from 407 reviews on its Google Business Profile, read September 27, 2026
- Residential and commercial work handled by the same company, including scheduled drain jetting
- Whole-home repiping in PEX, relevant to Seattle houses with galvanised supply lines
- Says it quotes upfront before work begins, and advertises financing for larger jobs
Things to Consider
- The 1908 founding date is the company's own claim and is not independently verified here
- Larger firms often price small fixture or water heater jobs above what an independent plumber would quote
- No published call-out fees or after-hours rates, so ask before booking an emergency visit
- Review average of 4.6 means a minority of poor outcomes worth reading through
Google Reviews for Jim Dandy Sewer & Plumbing
Customer ratings shown here come from Google. They are separate from our editorial review above.
Google rating
4.6
Based on 407 Google reviews
Review data updated September 27, 2026
Rating Distribution
- 5 stars86%
- 4 stars5%
- 3 stars1%
- 2 stars1%
- 1 star6%
iAbout this distribution
The distribution reflects the 407 Google reviews available when this profile's review data was last refreshed on September 27, 2026. Ratings and counts change continuously on Google, so figures here may lag the live profile slightly. We publish only the values returned by the source, never estimates for missing bands.
Editorial Ranking
Why Jim Dandy Sewer & Plumbing Made Our Top 10
It holds position 9 in 10 Best Plumbers in Seattle, WA.
Areas Served
Based in Seattle, WA.
iAbout service coverage
Coverage is as the business describes it, cross-checked against where its recent documented work is. A company will often travel beyond the areas listed here for a large job and decline a small one at the same distance, so confirm your address before scheduling.
About Jim Dandy Sewer & Plumbing
Side sewers are a Seattle problem in a way they are not in newer cities. Much of the housing stock north and south of downtown went up between the 1900s and the 1950s, the street trees are mature and thirsty, and the private side sewer running from the house to the city main is the homeowner's responsibility for its entire length. Clay pipe, root intrusion at the joints, bellies where fill has settled on a hillside lot. That is the territory jim dandy sewer plumbing works in daily, and it shows in how the company organises itself: sewer inspection, sewer repair, trenchless sewer repair, sewer replacement and trenchless sewer replacement are all listed as distinct services rather than lumped together.
On the plumbing side the range is what you would expect from a long-established full-service shop. Emergency call-outs, drain cleaning, hydro jetting, garbage disposals, toilets and fixtures, leak repair, sump pumps, water softeners and filtration, boilers, and whole-home repiping. The repiping description mentions replacing failing copper or galvanised lines with PEX, which is the common path in Seattle bungalows and Craftsman houses where original galvanised supply has narrowed to the point where two taps cannot run at once. Water heaters get their own emphasis, tank and tankless, including replacement when an old unit starts weeping at the fittings.
Commercial work is a separate strand, with commercial plumbing and commercial drain cleaning both flagged. For a restaurant or a multi-tenant building, grease-laden kitchen lines and scheduled jetting are recurring costs rather than one-off emergencies, and a company that already runs jetting trailers is usually a better fit than a residential-only van.
The founding date of 1908 is the company's own claim, and it is the sort of thing that is hard to verify from outside. What can be checked is the review record. A 4.6 average across 407 reviews, read on the Google Business Profile on September 27, 2026, is a large sample for a Seattle plumbing firm. An average at that level across that many entries usually means consistent competence with a minority of unhappy outcomes, most often around price expectations or scheduling on bigger excavation jobs. Worth reading the one and two star reviews yourself before committing to a large sewer project.
How they present the work is straightforward enough. Licensed plumbers, stocked vans, a quote given before the job begins. The site also advertises coupons and financing, which tells you something about typical ticket size: full sewer replacement in Seattle regularly runs into five figures once you account for permits, restoration and traffic control if the line crosses the planting strip. Financing options exist because those bills land unexpectedly.
Before hiring anyone for underground work in Seattle, ask for the camera footage. A reputable firm will show you the inspection recording and point out exactly where the defect sits and how deep. Ask who pulls the side sewer permit with SDCI and whether permit fees are inside the quoted number. Ask whether the quote includes restoring your driveway, lawn or hardscape, because that line item is where estimates diverge most. For trenchless work, ask which method is proposed, pipe bursting or cured-in-place lining, and whether the existing line is a suitable candidate, since a badly offset or collapsed pipe sometimes is not. For interior repipes, ask how many walls need opening and who patches them.
Compared with the alternatives in this market, jim dandy sewer plumbing sits in the middle ground between the national franchise operations that dominate search results and the small independent plumbers who often quote lower on simple repairs. The advantage of a shop with this breadth is that a drain call which turns out to be a broken main does not require finding a second contractor. The trade-off is that for a straightforward water heater swap or a fixture replacement, a two-person outfit may come in cheaper and get there sooner.
Good fit: owners of older houses in Ballard, Wallingford, Beacon Hill, West Seattle and similar neighbourhoods facing recurring backups or a failed side sewer, along with commercial property managers wanting one number for drains and fixtures. Less obvious fit: anyone shopping purely on hourly rate for a single small repair, or landlords outside the Puget Sound service area shown on the site.
iWhere this information comes from
Company history, ownership and capability details on this page are provided by the business and reviewed by our editors for plausibility and consistency. They are not the same as the credentials block, where each item carries its own verification status and source.
Reputation by Source
We show each source separately rather than blending them into a single score, because they measure different things.
Google
4.6/ 5
407 customer reviews
TenBestFind
Editorially reviewed
Ranked #9 in Seattle plumbers, September 2026
Project Photos
Business-submitted, reviewed by our editors
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Jim Dandy Sewer & Plumbing FAQs
Does Jim Dandy Sewer & Plumbing do trenchless sewer replacement?
Yes. The company lists both trenchless sewer repair and trenchless sewer replacement as separate services, alongside conventional dig-and-replace. Trenchless methods avoid open excavation across a yard or driveway, which matters on Seattle lots where the side sewer runs under hardscape or mature landscaping. Not every line is a candidate, though. Ask which method is proposed and whether the camera inspection shows the existing pipe can take it.
What does it cost to replace a side sewer in Seattle?
No prices are published, so you will need a quote. Side sewer replacement in Seattle commonly runs into five figures once permits, depth of the line, restoration of driveway or lawn and any traffic control are included. The company advertises upfront quoting and financing options, which suggests it expects larger tickets. Get the quote itemised so you can see what permit fees and surface restoration cover.
How is Jim Dandy Sewer & Plumbing rated?
It holds 4.6 out of 5 from 407 reviews on its Google Business Profile, read on September 27, 2026. That is a large review count for a Seattle plumbing company, and an average at that level generally points to consistent work with a small share of dissatisfied customers. Reading the lower-star reviews is worth the ten minutes before you commit to a big job.
Do they handle emergency plumbing calls?
An emergency plumber service is listed on the company's site, so yes for urgent work such as burst pipes, main line backups or a failed water heater. Hours and after-hours pricing are not published in the material available, so confirm the call-out charge and the expected arrival window when you phone (206) 737-9111.
Can they repipe an older Seattle house?
Whole-home repiping is one of the listed services, described as replacing failing copper or galvanised lines with PEX. Galvanised supply is common in Seattle houses built before the 1960s and tends to corrode inward until pressure drops noticeably. Ask how many walls and ceilings need opening, who patches and paints afterward, and whether the quote covers that restoration work.
Do they work outside the city of Seattle?
The company describes itself as serving the Puget Sound region and publishes a service area page on its website. Coverage beyond Seattle proper is likely but the exact boundary is not stated in the material reviewed here, so check your address with the office before scheduling.
Is commercial plumbing available?
Yes. Commercial plumbing and commercial drain cleaning are both listed as distinct services. For restaurants and multi-tenant buildings, the useful part is access to hydro jetting for grease-laden kitchen lines, which is usually a scheduled maintenance item rather than an emergency repair.
Is Jim Dandy Sewer & Plumbing licensed and insured?
We have no credential records on file for this company yet. Ask for the certificate directly from the insurer before booking work.
What areas does Jim Dandy Sewer & Plumbing serve?
Seattle. Coverage is as the business describes it, cross-checked against where its recent documented work is. Confirm your address before scheduling, particularly at the edge of a service area.
Does Jim Dandy Sewer & Plumbing offer emergency service?
Emergency availability is not listed for this company. If you need an urgent call-out, check the ranking for companies that do list it.
What warranty do they offer?
Warranty terms are not on file. Ask for them in writing before work starts.
How was this profile built?
Credentials come from issuing authorities, ratings from the company's Google Business Profile with the date we read them, and the editorial take from our own review of estimates, warranty documents and public feedback. Anything the business told us is labelled as reported.
Can a business pay to improve its profile?
A business can subscribe to manage its own listing details, and it can buy a labelled sponsored placement. Neither changes a ranking position or the editorial assessment on this page.
Is Something Incorrect?
Business information changes. Tell us about an address, phone, website, service area, credential or ownership change, or let us know if this company has closed.
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About This Business Profile
- Last reviewed
- September 2026
- Profile last updated
- September 27, 2026
- Google review data updated
- September 27, 2026
- Reviewed by
- Dana Whitfield, Senior editor, home services
- Sources checked
- Google Business Profile, Company website
- Sponsorship status
- No commercial relationship
Dana runs the editorial side of TenBestFind. She built the research process, decides which markets get covered next, and writes the plumbing and chimney rankings herself. Before this she spent eleven years as a consumer reporter covering contractor licensing and home improvement fraud.