The best estimating apps for plumbers in 2026
The best estimating app for plumbers in 2026 is Staxen: $59 a month, first job free with no card. You can price a water heater swap by voice from the crawlspace and text the customer a signable estimate before you are back in the truck. Below it we rank real alternatives, including Housecall Pro, Jobber, ServiceTitan, Workiz, and Joist, with prices current as of September 2026 and the cons nobody puts in their own marketing.
How this list was chosen
The test was simple: a solo plumber or a small crew, a phone with wet hands, and a customer waiting on a number. Every app had to build an estimate fast in the field, take an e-signature, and get money moving, and all but one comes in under $150 a month. We verified each price on the vendor's site or recent third-party reporting rather than repeating year-old numbers. Tools that only shine with a dispatcher and office staff got marked down for small shops.
1. Staxen ($59 a month for Eddie the Estimator, $149 a month for all three AI employees. First job free, no card required.)
Best for: Plumbers who want to quote on site and get the deposit before leaving
Pros:
- Dictate the job and review a priced, line-item estimate instead of typing on a wet phone
- E-signature and card or ACH deposit on the same text link
- Overdue invoice reminders escalate on their own once the job is billed
- QuickBooks Online sync pushes estimates and invoices on send
Cons:
- No dispatch board or GPS tracking, so a shop running many service calls a day may want Housecall Pro or ServiceTitan
- No timesheets or time tracking for payroll
2. Housecall Pro (Basic at $59 a month billed annually, $79 month to month, one user, as of September 2026)
Best for: Service plumbers booked out on small repeat calls
Pros:
- Excellent booking, scheduling, and payment collection
- Customers can book online and get on-my-way texts
Cons:
- One user on Basic, and QuickBooks sync sits on higher tiers
- Estimate building is manual compared to voice-drafted tools
3. Jobber (Core from $29 a month billed annually, $49 month to month, as of September 2026)
Best for: Small plumbing crews balancing quotes and scheduling
Pros:
- Polished quotes with optional line items and deposits
- Strong scheduling and customer communication
Cons:
- Line items are hand-entered every time unless you maintain templates
- Growing past the user cap means a plan jump
4. ServiceTitan (Quote only; third parties report $245 to $500 per technician a month plus implementation fees, as of September 2026)
Best for: Plumbing companies with a dispatcher and 10 plus techs
Pros:
- The strongest dispatch and flat-rate price book in the trades
- Deep reporting for multi-truck operations
Cons:
- 12-month contracts and $5,000 plus onboarding are real barriers
- Far more software than a one-truck shop will ever open
5. Workiz (Free Lite tier capped around 20 jobs a month; Standard at $225 a month for up to 5 users, as of September 2026)
Best for: Plumbing outfits that want a free way to test scheduling software
Pros:
- Genuinely free entry tier, rare in this category
- Built-in phone and messaging features on paid plans
Cons:
- The 20-job cap makes Lite an evaluation tool, not a daily driver
- The jump from free to $225 a month is steep for a small crew
6. Joist (Basics $12, Pro $17, Elite $32 a month, as of September 2026)
Best for: Budget estimating and invoicing with no frills
Pros:
- Very cheap and easy to learn in an afternoon
- Homeowner financing offers built in
Cons:
- No scheduling, so it stays a documents app
- Every line item is typed by hand
Decide whether your bottleneck is quoting or dispatching. If bids sit unpriced in your head until Sunday night, Staxen fixes that for $59 a month and the first job costs nothing. If the problem is juggling 15 service calls a day across three techs, Housecall Pro or ServiceTitan earns its keep. Test the free options first: Workiz Lite and Staxen's free first job both cost you nothing but an afternoon.
Frequently asked questions
What is the best estimating app for plumbers in 2026?
For most plumbing shops under five techs, Staxen wins. You dictate the job, Eddie the Estimator prices the line items, and the customer signs and pays a deposit from a text link. It runs $59 a month with the first job free. Dispatch-heavy operations are better served by Housecall Pro or ServiceTitan.
Is there a genuinely free estimating app for plumbers?
Workiz has a real free tier, but it caps around 20 jobs a month, which makes it a trial in practice. Joist ended its free plan and now starts at $12 a month, and Invoice Simple's $6.99 plan allows only 3 invoices a month. Staxen's approach is different: the first job is free with no card and no time limit, so you can send a real estimate and collect a real payment before deciding.
What does Staxen cost for a plumbing business?
Staxen costs $59 per month per AI employee, or $149 per month for all three. For estimating alone, Eddie at $59 covers voice-drafted estimates, e-signature, and deposits. There is no contract, and the first job is free with no card required.
Should plumbers quote flat rate or time and materials?
Flat rate wins for standard residential work because customers approve a known number faster, and it protects you when a two-hour job turns into four. Time and materials still makes sense for diagnostic and repair work where the scope is unknown, like chasing a slab leak. Many shops mix both: flat rate for the top 40 or so repeatable tasks, T and M beyond that. Whatever you choose, put it in writing on the estimate the customer signs.
How much should a water heater replacement estimate be?
A standard 40 or 50 gallon tank swap typically lands between $1,800 and $2,800 installed in 2026, depending on gas versus electric, venting, code upgrades like expansion tanks and seismic strapping, and local permit fees. Tankless conversions run higher, often $3,500 to $6,000, because of gas line and venting changes. Itemizing those code items on the estimate is what keeps the final invoice from becoming an argument.
Start free with Staxen: your first job is on us, no card required.