Key takeaways
- Keep ServiceTitan, Housecall Pro or Jobber for dispatch and invoicing; build custom only where your office retypes data or cannot see a number it needs.
- The best first builds for plumbers sit around the field software: an after-hours on-call board, an unsold-estimate tracker and a portal for property managers.
- Your install history (which heater went in at which address, and when) is a sales asset, so the code, hosting and data must be in your company's name.
- Build in phases and ship big changes after the winter freeze season, not in the middle of it.
Custom software for a plumbing company rarely means replacing ServiceTitan, Housecall Pro or Jobber. It means building the few tools your field software does not handle the way your shop works: a board that shows who is on call tonight, a tracker for water heater and repipe quotes that never closed, a portal where landlords submit work orders. You own the code and the data.
When custom beats off-the-shelf
A custom tool earns its cost when your office keeps the same information in two places, or when the number you need lives in no single system. Field service platforms are strong at the job itself: booking, dispatch, the pricebook, invoices and payments. The edges are where plumbing shops patch things together with whiteboards, group texts and spreadsheets.
Custom is worth a look if two or more of these are true in your shop:
- The after-hours rotation lives on a whiteboard, and the answering service calls the wrong tech at least once a month.
- Nobody can say how many tank-replacement or repipe options quotes went out last quarter, or who followed up on them.
- A property manager emails, texts and calls about the same leaking unit, and your dispatcher retypes it each time.
- Marketing reports show calls, but nobody can connect a Google Ads call to the invoice it became.
- You pay for three add-ons that each do a third of one job.
If none of these sound familiar, stay with your platform. A well-configured ServiceTitan, Housecall Pro or Jobber account beats a custom build nobody needed.
Off the shelf or custom
Does your current software fit how you work?
- Yes Configure it fully Use the features you already pay for
- Mostly Connect what is missing Integrations and small tools around it
- No Build what you own Code and data in your name
What we build
- An on-call and after-hours board. Who carries the phone tonight, who is backup, and which emergency calls came in after five, with callback times logged. Your answering service or AI receptionist reads from it, so a 2 a.m. burst pipe reaches the right truck.
- An unsold-estimate tracker. It pulls open quotes for water heater replacement, repiping and sewer line work from your field software, shows age and follow-up status, and hands the stale ones to your CRM for a reminder.
- A property manager and landlord portal. Managers submit work orders by unit, attach photos, see status and download invoices, without a phone call.
- A call-to-invoice dashboard. It joins tracked calls from Maps, Local Services Ads, Google Ads and the website with the jobs and invoice totals in your field software, broken out by drain, water heater and repipe work.
- An installed-equipment register. Every water heater, softener and tankless unit you put in, by address and install date, so replacement and maintenance reminders go to the right homeowner at the right time.
- A freeze-event triage queue. When a cold snap floods the phones, calls are sorted by severity (water running, no water, slow drain) so dispatch sends trucks to the worst damage first.
Ownership of code and data
You own the code, the hosting and the data from the first commit. The repository sits in your company's account, the database is in a cloud account billed to you, and the domain is yours. If we stop working together, nothing has to be migrated or bought back.
That matters more for a plumbing company than it first appears. Your install history and customer list are what make the next water heater sale and the next maintenance renewal possible. They should never live only inside a vendor's tool. We also document how each integration reads from your field software, so another developer can pick it up later.
How a project runs
- Assess. We sit with your dispatcher and office manager, watch how a call becomes a job and an invoice, and list where data is retyped or lost.
- Prioritize. We choose a single first tool, the one that frees the most office hours or wins back the most revenue, define what "working" means (for example, every unsold estimate gets a follow-up within a set number of days), and put a date on it.
- Execute. We build the first version in weeks, connected to your field software, and test it on live calls before your team relies on it. Big changes go in after the freeze season, not during it.
- Measure. We check the outcome against the target: closed estimates, faster after-hours callbacks, hours saved in the office. Then we pick the next phase, or stop if the job is done.
Many shops pair a custom tool with a properly set-up CRM. The CRM guide for plumbing companies covers what HighLevel handles next to your field software, and AI quoting for plumbers covers faster options quotes.
How VETS Growth Marketing helps
We scope custom software for plumbing companies as a project with one outcome and a date, such as "every water heater quote is followed up" or "the on-call tech gets every after-hours call". The code, hosting and data are in your name from day one. We report in recovered jobs and office hours saved, not features shipped. Book a growth consultation and bring the spreadsheet your office cannot live without. That is usually where the first build starts.
Sources
- About conversion measurement, Google Ads Help
- Set up tracking calls to a phone number on a website, Google Ads Help
- Set up Analytics for a website and/or app, Google Analytics Help