Free Plumbing Software in 2026: Best Apps for Quotes, Scheduling & Invoicing

Quick answer: Krib is one of the most complete free plumbing software options in 2026 — quoting, job scheduling, dispatching, invoicing, and online payment collection at $0/month with no trial period and no per-user fees. Wave and Invoice Ninja offer free invoicing but lack scheduling and dispatch. Most other tools advertised as "free" are 14-day trials or feature-restricted freemium tiers.

Why Plumbers Are Searching for Free Software

If you run a small plumbing company, the software built "for you" is expensive. According to publicly available pricing pages as of July 2026, Jobber costs $49/month for a single user on monthly billing ($29/month on annual billing), Housecall Pro starts at $79/month, and ServiceTitan reportedly runs $245–$398 per technician per month with implementation fees in the thousands. (Competitor pricing changes frequently — verify current rates directly with each provider.)

For a solo plumber or a two-truck shop, that's $800–$2,400+ per year before you've fixed a single leak. Many plumbers respond by cobbling together free general-purpose tools — Wave for invoices, Google Calendar for scheduling, Venmo for payments — and becoming the human glue between disconnected apps.

This guide breaks down what's genuinely free in 2026 for running a plumbing business: quoting, scheduling, dispatching, invoicing, and getting paid. We're honest about which "free" products are actually trials or restricted freemium tiers.

What Plumbing Business Software Actually Needs to Do

Plumbing work has a specific rhythm: emergency calls mixed with scheduled jobs, quotes that need photos of the problem, and customers who expect to pay by card on the spot. The software that runs your business needs to cover:

Quoting from the field — create a line-item estimate with photos of the corroded valve or slab leak, send it as a link, and get approval before you start work.

Scheduling and dispatch — know which tech is at which address, handle same-day emergency slots, and reshuffle without double-booking.

Invoicing and payment collection — convert the finished job into an invoice and take a card payment on-site or send a payment link.

Customer and property history — know what water heater is in that house, when you last serviced it, and what you charged.

Everything above is available at no monthly cost. Here's how the options compare.

Krib — Free All-in-One Plumbing Software

Krib is a genuinely free platform built for small contractors, including plumbers. No monthly fee, no per-user charges, no feature gating, no free trial that expires.

We keep the core software free primarily through standard payment processing (~3%) when you collect payments through the platform — and you can pass that fee to customers if you choose (subject to your state's surcharge laws). We're also building a future program to offer anonymized, aggregated property insight reports to industry partners — this is not yet active, and when it launches, you and your customers will always be able to opt out.

What's included at no cost:

• Professional quotes with photo attachments — customers approve online, no app download
• Job scheduling with time slots and a dispatch board
• Invoicing with online payment collection (card, QR code, payment link)
• Customer management and per-property service history
• Technician dispatch with mobile portals and time tracking
• Booking widget you can embed on your website
• Equipment and warranty tracking (water heaters, fixtures, repipes)
• Available in English and Spanish

• Best for: Solo plumbers and small plumbing teams (1–10 people) who want one free tool for quotes, scheduling, invoicing, and payments.
• Pricing: Free — $0/month, no per-user charges. Revenue comes from standard payment processing fees (~3%: 2.9% + $0.30 + 0.1% platform fee) on payments collected through the app, which you can pass to customers. A future opt-out anonymized property insights program is planned but not yet active.

Try Krib Free

Wave — Free Invoicing and Accounting

Wave offers genuinely free invoicing and accounting — unlimited invoices, expense tracking, and automatic payment reminders. It's a solid choice for the bookkeeping side of a plumbing business.

The gap: Wave has no job scheduling, no dispatch, no quoting workflow built for trades, and no customer property history. You'll still need separate tools to run the field side of the business.

• Best for: Plumbers who only need invoicing and basic accounting, with scheduling handled elsewhere.
• Pricing: Free invoicing and accounting. Payment processing fees apply on card payments.
• Limitations: No scheduling, no dispatch, no quoting with photos, no service history.

Invoice Ninja — Free Tier for Invoicing and Quotes

Invoice Ninja's free tier covers invoicing and basic quoting for up to 20 clients. It's developer-friendly and customizable, with an open-source self-hosted option for the technically inclined.

Like Wave, it's an invoicing tool, not field service software — there's no dispatch board, no technician scheduling, and no plumbing-specific workflow.

• Best for: Small plumbing operations comfortable with a general-purpose invoicing tool.
• Pricing: Free tier for up to 20 clients. Paid plans unlock more clients and features.
• Limitations: Client cap on the free tier. No scheduling or dispatch. Quotes lack field-friendly photo workflows.

The DIY Free Stack (Wave + Google Calendar + Venmo)

Many small plumbing shops piece together free general-purpose tools: Wave for invoicing, Google Calendar for scheduling, Google Sheets for estimates, and Venmo or Zelle for payments.

This costs $0 but has a hidden price: you become the integration layer. Every job means manual data entry in three or four places. Customer information lives in your phone contacts, service history lives in your memory, and at tax time you're reconciling payments across multiple apps.

If you're doing fewer than 5 jobs a week, the DIY stack works. Beyond that, the time spent coordinating manually starts eating into billable hours — which is exactly the problem purpose-built free tools solve.

Free vs. Paid Plumbing Software: The Honest Comparison

The biggest frustration with "free plumbing software" searches: most results aren't actually free. Here's how the pricing models in this space really work.

Running a Plumbing Team Without Per-User Fees

Per-user pricing is where paid plumbing software gets expensive fast. Jobber charges $29/month per additional user; Housecall Pro's team plans jump to $189/month and beyond. A four-person shop can easily pay $200+/month just for logins.

Krib includes team dispatching and scheduling with no per-user fees. Each technician gets a mobile portal to view their schedule, clock in and out, and complete jobs — at no additional cost regardless of headcount. For a growing plumbing company, that's the difference between software costs that scale with your team and software costs that stay at zero.