The Thumbtack checkbox list most plumbers skip.

A plumber in Sacramento told me he had been on Thumbtack for two years and had never once been recommended by ChatGPT when he tested his own service area. He was convinced the platform was rigged against small shops. Then he opened his pro profile and we counted the job types he had selected during signup. Three. Drain cleaning, water heater repair, "plumbing". His truck does slab leak detection, gas line work and full repipes, and none of that existed anywhere in the text a machine could read.

The short answer: Your Thumbtack pro profile is free and it is the thing AI models quote when a homeowner asks for a plumber — buying leads is a completely separate decision — and the highest-leverage optimisation is checking every job type you legitimately perform during signup, because that checkbox list doubles as both the matching engine and the copy the AI reads.

Thumbtack got cited 784 times and most of those profiles were half-built

Across roughly 14,000 AI searches for plumbing services, we logged 9,293 citations. Thumbtack accounted for 784 of them: 531 from ChatGPT, 242 from Perplexity, 11 from Google AI Overviews. Fifth place overall, which puts it above a lot of things plumbers spend real money on. The full ranking of the sites AI reads before recommending a plumber has the rest of the table.

Here is the part that matters. When a language model pulls a Thumbtack page into an answer, it is reading a category page or a pro profile, and what it finds there is a service list, a review count, a star rating, a city, and a set of price estimates. It is not reading your ad spend. It is not reading whether you bought a single lead. A pro who has never paid Thumbtack a cent and a pro who spends four grand a month look identical to the model, assuming both filled the profile in properly.

Most have not.

The checkbox list during signup is the whole game

When you sign up at thumbtack.com/pro, you pick a category and then Thumbtack shows you a long list of job types to tick. Plumbers see dozens of them. This list is doing two jobs at once, and almost nobody realises the second one.

Job one: it is the matching engine. A homeowner requests "tankless water heater installation" and Thumbtack only shows the request to pros who ticked tankless water heater installation. Unticked box, invisible pro. No amount of budget fixes that.

Job two: those selections become the visible service list on your public profile. That is text on a page that gets crawled, indexed and summarised. When someone asks an assistant "who does sewer line replacement in Modesto", the model needs to find those words attached to a business name and a location. If your profile says "plumbing" and a competitor's says "sewer line repair, trenchless sewer line replacement, sewer camera inspection, slab leak detection", guess which one gets named.

So check everything you actually do. Not everything you could theoretically do — you will pay for mismatched leads and you will earn bad reviews for work outside your wheelhouse. Everything you genuinely do, competently, today.

The plumbing job types worth going through one by one

Work down this list and tick what applies. If your shop does it on a normal Tuesday, it belongs on the profile.

• Emergency plumbing and after-hours calls
• Drain cleaning and clogged drain repair
• Hydro jetting
• Sewer camera inspection
• Sewer line repair and replacement, including trenchless
• Water heater repair
• Water heater installation and replacement
• Tankless water heater installation
• Slab leak detection and repair
• General leak detection
• Water line and main water supply repair or replacement
• Whole-house repiping
• Pipe repair and frozen pipe thawing
• Gas line installation, repair and gas valve work
• Sump pump repair and installation
• Garbage disposal repair and installation
• Toilet repair, installation and running toilet fixes
• Faucet, sink and shower valve repair or installation
• Bathtub and shower drain clearing
• Low water pressure diagnosis
• Hose bib and outdoor spigot repair
• Water softener and filtration installation
• Backflow testing and prevention
• Bathroom and kitchen remodel plumbing
• New construction plumbing connections
• Septic system work
• Plumbing inspections

That is not a list to admire. Open your profile in another tab and go through it. Most plumbers find eight to fifteen boxes they should have ticked and did not, and it takes about six minutes.

Then fill in the pricing fields, because that is what gets quoted

After the job types, Thumbtack asks you to set prices — a base rate, a call-out fee, or estimates for specific jobs. Skipping this is the second most common failure, and it costs you twice.

It costs you with homeowners, who filter on price and skip profiles that show nothing. And it costs you with the models, because a price is a concrete, extractable fact. An assistant summarising three plumbers will happily say "typically quotes 150 to 350 dollars for drain cleaning" if that number exists on the page. Vague profiles get vague mentions, or no mention.

Fill in what you can defend. A range is fine. A diagnostic fee is fine. Nothing is not.

The rest of the free profile deserves the same twenty minutes: a real business description that names your city and your specialities in plain sentences, ten or more photos of actual work rather than stock trucks, your licence number, your insurance, your years in business, and the background check badge. Then ask past customers for reviews. Reviews are the single strongest signal on the page and they cost nothing.

The lead economics, straight

Now the paid side, which you can ignore entirely and still get everything above.

Thumbtack charges per lead. Plumbing leads commonly land somewhere around 30 to 80 dollars, with emergency and high-value work reported higher — into the 95 to 120 range and sometimes past it — depending on your market, the job type and how many pros are competing. You set a weekly budget, you set targeting preferences for job types and travel radius, and you can switch the whole thing off during a busy fortnight.

Two things to be clear-eyed about. First, you are charged when the lead connection happens, not when the job books. A homeowner who messages you and then vanishes is a paid lead. Second, refunds come as account credit by default, and they are granted for provable mismatches — wrong location, wrong job type, outside your availability, duplicate charge, dead phone number — not for lead quality or for being ghosted. Some pros report success asking for the credit back to their original payment method after approval; treat that as the exception, not the plan.

Do the arithmetic before you spend anything:

Those close rates are illustrative — plug in your own. But look at row one against row four. On drain cleaning you are handing over a meaningful slice of the ticket for a job that might not repeat. On a repipe or a sewer replacement, 360 dollars of acquisition cost against a five-figure job is cheap by any standard.

Which is why the targeting settings matter as much as the checkboxes. Tick every job type you do so you appear everywhere in search and in the AI's reading of the page. Then, if you buy leads, aim your budget at the work where the maths clears comfortably. Those are two different levers and Thumbtack lets you pull them independently. If you want a broader frame for how much of your budget should go anywhere near lead platforms, we wrote about what a plumbing company should actually spend on marketing.

Top Pro is now a tiered programme, and speed is most of it

Thumbtack folded Top Pro into Pro Rewards, with Silver, Gold and Platinum tiers. Platinum carries the Top Pro badge. Across the tiers you need a completed profile with at least one photo, a passed background check, a strong star rating, and a response rate measured on how fast you reply to inbound leads during business hours. You also accumulate points — for responding to leads and for bookings — against a threshold, assessed in three-month cycles.

Translated: answer fast, get reviewed, keep the profile finished. The badge is a trust marker that shows up in the text a model reads, and it is one of the few things on the page that competitors cannot copy in an afternoon.

Where Thumbtack sits in the rest of it

Thumbtack is a rented profile on someone else's platform. It is worth having, it is free to have, and it earns you citations in a channel where a lot of plumbers currently have zero presence. It is not a strategy on its own. The businesses that dominate AI answers show up on Thumbtack, on Angi, on Yelp, on their Google Business Profile, and on a site of their own that actually answers homeowner questions — which is the work we do in plumber SEO and, on the paid side, in Local Services Ads where you pay per lead but Google's badge does the trust work for you.

Start with the free profile. Give it forty minutes. Tick every box you have earned the right to tick, put real numbers in the price fields, upload photos of jobs you are proud of, and go ask six customers for a review.

If you get through that and want to know how the rest of your marketing looks to a machine — what gets cited, what gets ignored, and where the money is leaking — book a call. We will pull up your profiles alongside your three closest competitors and tell you what we see, including the parts you would rather we did not mention. We start by telling you the truth.