Custom Inventory and Job-Routing Software for South Florida PPF Installers

Why off-the-shelf software fails in a PPF shop

Walk into any of the high-end PPF and ceramic shops between Coral Gables and Boca Raton and you will see the same setup: a $50,000 Summa plotter on one wall, a wall of XPEL or 3M Pro Series rolls, four to eight bays, and a 60-tab Google Sheet on a manager's iPad that holds the whole operation together. The shop owner has heard of Tekmetric. They have tried ShopMonkey. Both got abandoned within a quarter for the same three reasons.

Film inventory does not fit a parts catalog. A roll of XPEL Ultimate Plus is not a SKU you decrement by 1. It is a 60-inch by 100-foot roll with a lot number, a manufacturing date, an open status, and a remaining linear-foot count that drops by partial amounts every job. When a 991 Turbo full-front comes in, the dispatcher needs to know which lot and which roll has enough remaining feet to cover the job without splicing across rolls. No mechanical-shop ERP models that.

Scheduling is multi-dimensional. A bay is not a labor hour. A 992 GT3 RS full body wrap consumes one bay for two and a half days, one lead installer who has done at least three GT-class wraps, and a curing window after that has its own bay-blocking implications. ShopMonkey's calendar is one-dimensional. The shop's reality is at least three.

Cut-file reservation is not a feature anywhere. XPEL's DAP catalog is gigabytes of vehicle-specific cut files. When two installers walk up to the plotter at the same time and both pull the hood file for the same Cayenne Turbo GT, one of them just wasted ten linear feet of $19/ft film. There is no commercial product that makes that race condition impossible.

A custom software layer fixes those three things in a week each. That is why every serious South Florida shop above 3,000 sq ft and $1.5M in annual revenue ends up commissioning one.

The four workflows worth building first

We always start by ranking workflows by hours-bled-per-week, not by what the owner finds most exciting. In rank order across the South Florida shops we have built for:

1. Vehicle intake → estimate → DocuSign → bay assignment

Today: client texts a photo of their 992 to the manager's personal phone, the manager walks the car when it arrives, scribbles coverage on a printed estimate, types it into a Google Doc, emails a PDF, the client signs in DocuSign, the manager copy-pastes the line items into ShopMonkey, then walks to the bay board and writes the car on a magnet.

After: client books an intake slot from a public-facing page, the system pre-loads the make/model template (full front, partial front, track pack, full body), the manager walks the vehicle through a tablet UI that captures coverage by panel, photos auto-attach, the estimate generates from a per-shop pricing table, DocuSign fires from inside the app, and on signature the job auto-allocates to the next available qualified bay-installer pair.

This single workflow saves a manager an hour per car. At twelve cars a week, that is fifty hours a month back in dispatcher time.

2. XPEL DAP cut-file reservation

The DAP catalog is pulled nightly. Each plotter has a dedicated user. When an installer assigns a cut file to a job ticket, the file is locked for that job. A second installer hitting the plotter for the same file gets a soft warning ("this file is reserved for job 4421 — confirm you mean to re-cut?") and has to pick a different job to cut for or override with a reason. Reasons get logged. Wasted-film events drop by 60–80% in the first month.

3. Film inventory by SKU, lot, and remaining linear feet

A roll has six fields: SKU, lot, manufacturing date, opened-on date, total length, remaining length. Every cut decrements remaining length. A weekly count reconciles to physical measurement (a sales-floor wheel measurement on partially used rolls is good enough). Reorder triggers fire on a per-SKU floor that takes lead time and seasonal demand into account.

The reorder agent is the second unlock. South Florida shops that are short on Stealth Onyx in November (German performance cars heading into snowbird season) lose two weeks of revenue. Software that knows the seasonality and pre-orders against it earns its build cost back in one season.

4. Bilingual SOP delivery to the installer's phone

This is where the work actually happens. The SOP for a Stealth pattern on a 992 Turbo S is different from the SOP for the same vehicle in Ultimate Plus. The installer pulls up the job on their phone, the system shows the right SOP, the right cut file, the right film, and the right photos for the squeegee sequence. SOPs are versioned. When XPEL changes a pattern, the lead installer publishes a new version, every shop in the group pulls it next time, and old versions remain accessible for warranty disputes.

What is specific to South Florida

A few realities that change the build:

Hurricane season and snowbird season are both demand spikes

May through November, hurricane prep moves PPF demand for second homes into a 6–8 week window. November through April, snowbirds bring in Northern cars that have been salt-bathed for four months and want full restoration plus PPF. A shop running on Google Sheets cannot survive either window without overtime; a shop with proper scheduling absorbs both.

Miami-Dade, Broward, and Palm Beach county are three different markets

A Miami shop has heavier exotic volume — 488 Pistas, McLaren 765LTs, GT3 RS — and tighter requirements for finish and turnaround. A Fort Lauderdale shop runs more daily-driver Range Rovers and Wagoneers. A West Palm Beach shop sees more high-mileage SUVs from family compounds wanting ceramic-and-PPF combos before driving back to Manhattan in May. The pricing matrix, bay allocation rules, and SOP library all need to be per-location.

Bilingual operations are not optional

Six of the last seven shops we have built for in Miami-Dade and Broward have crews that operate primarily in Spanish. The installer UI ships bilingual on day one. The dispatcher UI is English-first because the dispatcher is usually the owner. The customer-facing pages are bilingual with auto-detect and manual override. None of this is hard; all of it is wrong if you wait to bolt it on later.

Zoning and permitting drives where new shops can open

Miami-Dade zoning treats PPF and detailing as automotive service, which limits viable locations and pushes new builds toward IU-1 and BU-2 districts. A scaling group should know the zoning constraints before signing a lease, and the software's location-onboarding workflow should track zoning approval as a launch gate, not an afterthought.

What to budget

For a single-location South Florida PPF or ceramic shop with 4–8 bays, 6–12 installers, and 80–160 vehicles per month:

• $35,000–$50,000 for v1 covering intake, estimate, DocuSign, scheduling, and inventory.
• $15,000–$25,000 for XPEL DAP integration, plotter reservation, and the SOP library.
• $10,000–$20,000 for QuickBooks Online sync, customer portal, and the public booking page.

For a multi-location group across Miami-Dade, Broward, and Palm Beach, expect a $80,000–$160,000 v1 with a shared inventory pool, dispatcher routing across locations, and per-location pricing. Both engagement sizes sit well above our $5,000 minimum and deliver inside a 6–14 week window depending on integrations.

When custom software is the wrong answer

Two cases. If the shop is doing under 30 vehicles a month with two installers and one bay, software is overkill — clean up the Google Sheet and revisit in twelve months. If the shop is in the middle of changing core suppliers (XPEL to STEK, or ShopMonkey to Tekmetric), wait until the supplier change has settled before building integrations on top of moving infrastructure.

Otherwise, every PPF and ceramic shop above $1.5M in revenue across South Florida is leaving meaningful money in spreadsheet cells. Custom software is not a luxury at that scale. It is the difference between a 22% net and a 31% net.