Plumbing Quote Calculator for Plumbers

The form your customers fill out

A live calculator, not a static quote request. Your customer enters their details and watches the number update on the spot, which is what turns a browser into a booked job.

What it calculates

Prices water heater, repipe, and fixture jobs
Mixes flat-rate tasks with hourly labor
Adds per-fixture install costs
Applies an emergency or after-hours rate
Includes permit and material markup

Why it closes more deals

⚡

A live number closes deals

Customers who see a real estimate the second they enter their details are far likelier to book than ones told to call for a quote. The number is the hook.

📊

Runs your most complex spreadsheet

Multi-tab workbooks, lookup tables, tiered rates, conditional line items, the lot. If the math runs in Excel, CalcForms runs it behind a clean form.

🔁

Update it by chatting

Prices move. Ask Claude to change a rate, add an option, or insert a step and the live form updates in seconds. No developer, no redeploy.

🎯

Backtest before you publish

Run your last 20 real jobs through it and tune the formula until the live estimate matches what you actually charge. Ship it once it lines up.

How this form was built

No template builder and no code. One message to Claude with the CalcForms connector switched on:

✦ Claude with the CalcForms connector

Build a plumbing quote calculator. Inputs: job type, number of fixtures, labor hours, and timing. Use flat rates per job type (water heater $1,800, repipe $6,500 base, fixture install $250 each), add labor at $145/hour, and apply a timing multiplier of 1.0 standard, 1.25 same-day, 1.6 after-hours emergency. Add a flat $120 permit on water heater and repipe jobs. Show the customer an estimated job price.

Done. I built Plumbing Quote Calculator with your pricing and deployed it to forms.badabingapp.cc. The math runs server-side and every submission is saved with the inputs and email. Want to add a field or change a rate? Just tell me.

Build this exact form

CalcForms is a connector you add to Claude once. After that you build and edit forms just by chatting.

Add CalcForms to Claude. Open the Add custom connector dialog, name it Calcforms, and paste https://forms.badabingapp.cc. One time, about 60 seconds.
Paste the prompt below. Claude builds the form, wires in your math, and hands you a live URL.
Share it, then tweak by chatting. Put it on your site or send the link. Change a rate or add a field later just by asking.

Copy this prompt into Claude

"Build a plumbing quote calculator. Inputs: job type, number of fixtures, labor hours, and timing. Use flat rates per job type (water heater $1,800, repipe $6,500 base, fixture install $250 each), add labor at $145/hour, and apply a timing multiplier of 1.0 standard, 1.25 same-day, 1.6 after-hours emergency. Add a flat $120 permit on water heater and repipe jobs. Show the customer an estimated job price."

Example run: Water heater replacement, 1 fixture, 4 labor hours, same-day: about $3,150 estimated job price.

New to connectors? A connector (an MCP server) is a secure link between Claude and an app. The CalcForms connector lets Claude build, deploy, and update real calculator forms for you, all from the chat window.

Formulas it supports

flat rate by job type
hours x labor rate
fixtures x install cost
timing multiplier
flat permit fee

FAQ

Can it mix flat-rate and hourly pricing?

Yes. Each job type can carry a flat base price plus hourly labor, exactly like your price book. Adjust either by asking Claude.

Does it handle emergency call-out rates?

A timing field applies your after-hours multiplier so a 2am emergency quote reflects the higher rate automatically.

Can I keep my full price book in it?

It handles multi-tab Excel, so your whole flat-rate book with fixtures, jobs, and markups loads in and drives the quote.

How accurate will the quotes be?

Backtest against past invoices and tune the rates until the live estimate matches what you actually charged on similar jobs.

Build yours in the next 10 minutes.

Your first form is free. No credit card.

Start free →