Plumbing Business Operations

Provides guidance on pricing, dispatching, licensing, inventory, marketing, and growth strategies to run a profitable plumbing business.

Security Scan

The skill is an instruction-only business-advice pack for running a plumbing company; its declared requirements and runtime instructions are consistent with that purpose and do not request credentials, binaries, or install code.

Purpose & Capability

Name and description match the included SKILL.md and README content (pricing, dispatch, licensing, inventory, marketing, growth). The skill requests no environment variables, binaries, or installs — which is proportionate for a guidance-only skill.

Instruction Scope

SKILL.md contains operational and business guidance only (pricing tables, dispatch procedures, software suggestions, licensing/compliance notes). There are no instructions to read local files, access environment variables, call arbitrary external endpoints, or collect/transmit user data. Truncated content appears promotional but not operationally invasive.

Install Mechanism

No install spec and no code files present. Instruction-only skills have the lowest install risk because nothing is written to disk or executed on install.

Credentials

The skill declares no required environment variables, credentials, or config paths. That aligns with its stated purpose as a business-advice reference.

Persistence & Privilege

Flags show always: false and normal model invocation. The skill does not request permanent presence or elevated privileges; there is no evidence it modifies other skills or system settings.

Assessment

This skill is an advice/reference pack only — it doesn't install software or ask for credentials, so it is coherent with its description. Before relying on the guidance: (1) verify local licensing, code, and insurance requirements for your jurisdiction (rules vary by state/country); (2) treat pricing and compliance numbers as starting points and adjust for your market and costs; (3) be cautious about following links or paid resources referenced in the README (they point to an external site) — review those sites separately before purchasing; and (4) if you plan to allow an AI agent to act autonomously (book jobs, send invoices, access accounts), restrict its permissions and provide only the specific credentials it needs.

Run a more profitable plumbing company. Covers pricing, dispatching, licensing, inventory, and growth.

How to Use

Tell your AI agent: "Help me with plumbing business operations" and reference this skill.

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Pricing & Estimating

Service Rate Structure

Service Type	Typical Range	Notes
Service call / diagnostic	$75–$150	Covers truck roll + first 30 min
Hourly labor (residential)	$90–$180/hr	Varies by market, license level
Hourly labor (commercial)	$120–$250/hr	Prevailing wage on public jobs
Flat-rate residential	Per task book	Standardize with flat-rate pricing manual
Emergency / after-hours	1.5x–2x standard	Minimum charge $200–$350
Drain cleaning (basic)	$150–$350	Snake or hydro-jet upsell
Water heater install	$1,200–$3,500	Tank; tankless $2,500–$5,500
Repipe (whole house)	$4,500–$15,000+	Copper vs PEX, access difficulty
Sewer line replacement	$3,000–$25,000	Trenchless vs traditional
Backflow testing	$75–$250	Annual certification required

Markup & Margin Targets

• Materials markup: 30–50% over cost (higher on specialty fittings)
• Target gross margin: 55–65% on service, 35–45% on new construction
• Net profit target: 12–20% after overhead
• Flat-rate advantage: Customers prefer known price. Build flat-rate book with labor + materials + margin baked in.

Estimating Commercial Work

1. Takeoff from blueprints — count fixtures, linear feet of pipe, connection points
2. Labor hours = fixture count × labor units (use PHCC or MCAA labor tables)
3. Materials at contractor pricing + 25–40% markup
4. Add permits, inspections, equipment rental, subcontractors
5. Overhead allocation: 15–25% of direct costs
6. Profit margin: 10–20% depending on competition and relationship

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Dispatching & Scheduling

Daily Operations

• Morning huddle: 10 min max. Review board, flag callbacks, assign emergency slots.
• Dispatch priority: Emergency → scheduled service → estimates → new construction
• Service windows: 2-hour windows (8-10, 10-12, 12-2, 2-4). Never promise exact times.
• Drive time: Max 30 min between jobs. Zone-based dispatching saves 15–25% fuel costs.
• Callback slots: Reserve 1–2 slots daily for warranty/redo work.

Tech Utilization

• Target: 75–85% billable hours per tech per day (6–6.8 hrs of an 8-hr day)
• Track: revenue per tech per day, average ticket, callback rate
• Top performers: $1,500–$3,000+ revenue per day

Software Stack

• Field service: ServiceTitan, Housecall Pro, or Jobber
• Dispatching: GPS fleet tracking (Verizon Connect, Samsara)
• Invoicing: QuickBooks integration with field service platform
• Customer communication: Automated text/email confirmations, on-my-way alerts

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Licensing & Compliance

License Types (varies by state)

License	Requirements	Scope
Apprentice	Registered, supervised	Work under journeyman/master
Journeyman	4–5 years + exam	Independent residential work
Master Plumber	2–4 years journeyman + exam	Pull permits, supervise, sign off
Contractor	Master license + business license	Bid and contract jobs

Key Compliance Areas

• Permits: Required for new installs, repipes, water heater replacements, sewer work. Pulling permits = liability protection + upsell proof.
• Code: International Plumbing Code (IPC) or Uniform Plumbing Code (UPC) depending on jurisdiction. Know which your state/county adopts.
• Backflow: Annual testing/reporting required by water authority. Certified testers needed.
• EPA Lead-Safe: RRP Rule for pre-1978 buildings. $37K+ fines for violations.
• OSHA: Trench safety (competent person required), confined space entry for sewer work, PPE.
• Insurance minimums: General liability $1M/$2M, workers comp (mandatory in most states), commercial auto, tools/equipment floater.
• Continuing education: 4–16 hours annually in most states for license renewal.

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Inventory & Fleet

Truck Stock Standards

Every service truck should carry:

• Fittings: Common sizes in copper, PEX, PVC, CPVC, ABS, cast iron (1/2" through 4")
• Valves: Ball valves, gate valves, check valves, PRVs — residential sizes
• Water heater parts: Thermocouples, gas valves, elements, anodes, T&P valves
• Drain supplies: Cables (1/4" through 3/4"), cutters, auger heads
• Fixtures: Faucet cartridges (top 10 brands), supply lines, angle stops, wax rings, flanges
• Tools: Channel locks, basin wrench, tubing cutter, PEX crimp/expansion, soldering kit, camera (drain inspection)

Inventory Management

• Par levels: Set min/max for every truck stock item. Reorder at min.
• Weekly truck audit: 30 min per truck. Missing inventory = lost revenue.
• Warehouse: Central warehouse for overflow, specialty items, water heaters.
• Vendor accounts: Ferguson, Hajoca, local supply houses. Net-30 terms. Negotiate annually.
• Shrinkage target: Under 2% of materials cost.

Fleet

• Vehicle: Sprinter vans (preferred), box trucks for commercial, pickups for apprentices
• Maintenance: PM schedule — oil, tires, brakes per mileage. Fleet downtime kills revenue.
• Branding: Full vehicle wraps = 30,000–70,000 impressions per day per truck. Best ROI marketing.

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Marketing & Lead Generation

Highest ROI Channels

1. Google Local Services Ads (LSA): Pay per lead, Google Guaranteed badge. #1 channel for most plumbers.
2. Google Business Profile: 5-star reviews drive calls. Ask every happy customer. Respond to all reviews.
3. SEO: "Plumber near me" + city pages. Long game but compounds.
4. Referral program: $50–$100 per referred job. Track and pay promptly.
5. Home service platforms: Angi, Thumbtack, Yelp — test each, track CPL.
6. Vehicle wraps: Passive brand awareness. Include phone number in huge font.
7. Repeat/maintenance agreements: Plumbing inspection + drain cleaning annual plan. $199–$399/year. Recurring revenue + first call rights.

Key Metrics

• Cost per lead: Target $25–$75 residential, $50–$150 commercial
• Booking rate: 75%+ of inbound calls should book
• Average ticket: Track weekly. Target steady increase via flat-rate and upsell training.
• Customer acquisition cost: Under $200 for residential, under $500 for commercial

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Growth Playbook

Stage 1: Owner-Operator ($0–$300K)

• You run every call. Focus on service speed and 5-star reviews.
• Build flat-rate pricing book. Stop hourly billing.
• Get 50+ Google reviews fast.
• Systems: basic CRM, QuickBooks, Google Business Profile.

Stage 2: Small Team ($300K–$1M)

• Hire first tech. Train on your flat-rate book + sales process.
• Dedicated CSR/dispatcher (even part-time).
• Systemize: truck stock, morning huddle, daily revenue targets.
• Start LSA and SEO. Track every lead source.
• Gross margin > 55% or you're pricing wrong.

Stage 3: Growth ($1M–$3M)

• 3–6 techs. Dedicated dispatcher. Office manager.
• Maintenance agreement program (500+ members = stability).
• Add services: water treatment, gas lines, excavation.
• Commercial contracts for recurring revenue.
• KPI dashboard: revenue per tech, avg ticket, callback rate, CSR booking rate.

Stage 4: Scale ($3M–$10M+)

• Department leads (service manager, install manager, commercial manager).
• Apprenticeship pipeline — grow your own talent.
• M&A: acquire retiring plumbers' customer bases.
• Multi-location or expand service radius.
• Private equity interest starts at $3M+ EBITDA.

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Financial Benchmarks (Healthy Plumbing Company)

Metric	Target
Revenue per tech per year	$250K–$450K
Gross margin (service)	55–65%
Gross margin (new construction)	35–45%
Net profit	12–20%
Labor cost (% of revenue)	25–35%
Materials cost (% of revenue)	10–20%
Marketing spend (% of revenue)	5–10%
Overhead (% of revenue)	20–30%
Callbacks / warranty (% of jobs)	Under 3%
Tech utilization	75–85%
Maintenance agreement penetration	25%+ of residential customers

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Common Mistakes

1. Hourly billing — You're leaving 20–40% on the table. Switch to flat-rate.
2. No call tracking — If you can't attribute leads to sources, you're wasting marketing budget.
3. Underpricing emergency work — After-hours is premium. Charge accordingly.
4. No maintenance agreements — Recurring revenue smooths seasonal dips and locks in customers.
5. Ignoring permits — Short-term gain, long-term liability nightmare.
6. Truck stock chaos — Every missing part = a return trip = lost revenue.
7. Not training techs on sales — Techs who can present options (good/better/best) double average tickets.

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Resources

• PHCC (Plumbing-Heating-Cooling Contractors Association): phcc.org — labor data, training, advocacy
• MCAA (Mechanical Contractors Association): mcaa.org — commercial labor units
• ICC (International Code Council): iccsafe.org — IPC/UPC code updates
• Need AI automation for your plumbing company? → AfrexAI Context Packs — pre-built AI agent configurations for service businesses ($47/pack). Or try the free AI Revenue Leak Calculator to find where you're losing money.