Local water heater supply depot

Stock the common water heaters local plumbers need and offer same-day pickup or delivery from a small unit.

Startup cost$50k to $150k
Monthly revenue$15k to $60k
Time needed40+ h/week
First incomeMonths
  • $50k-150k
  • Full-time
  • Own premises

Estimates for a small start in the US, not guarantees.

Official data

6,410 US businesses with employees in this field, -5.0% in a year

NAICS 423720 “Plumbing and heating equipment and supplies (hydronics) merchant wholesalers”. Source: U.S. Census Bureau, County Business Patterns 2023.

What it is

A small warehouse or unit stocking popular tank and tankless water heaters, expansion tanks, venting and fittings. Contractors can pick up at the counter or have orders delivered the same day, which is the main edge over big suppliers.

Your first three steps

  1. Talk to local plumbers about which models they replace most and what frustrates them about current suppliers
  2. Contact manufacturers and regional distributors about authorized dealer terms, minimum orders and credit
  3. Price out a small warehouse or flex unit with loading access, plus a van or truck with a liftgate or hand truck setup
Who pays

Plumbers, HVAC and heating contractors, remodelers, builders and property maintenance teams who need units fast, often for emergency replacements.

How it makes money

Margin on each unit and accessory sold, plus delivery fees and contractor account sales. Revenue grows with the number of regular trade accounts and how well your stock matches local demand.

Skills that help
  • Sales and account management
  • Inventory and ordering
  • Product knowledge across brands and fuel types
  • Safe lifting and delivery driving
Watch out for
  • Inventory is a big upfront cost and slow-selling models tie up cash
  • Check zoning and your lease for warehouse use and customer pickup
  • Ask your state about sales tax registration and resale certificates
  • Get general liability, commercial property and commercial auto insurance, and workers' compensation once you hire
  • Check federal and state efficiency rules for the products you stock, and how warranty claims are handled
  • Heavy units cause injury and damage risk, so plan safe handling and delivery practices

Deep research report · US

Everything you need to start: local water heater supply depot

Researched with live web search for United States: real startup prices, the licences and rules, what others charge, a break-even example, how to find your first customers and a 30-day launch plan. With sources.

  • Startup costs with real prices
  • Licences, registration and rules
  • Pricing: what others charge
  • Break-even example
  • Finding your first customers
  • 30-day launch plan
  • Risks and how to reduce them
Ready in about 2 minutes · one-off payment, tax included

See a full sample report

Questions people ask

How much does it cost to start a water heater supply business?

Startup costs are typically around $50,000 to $150,000, depending on your unit, vehicle and especially how much inventory you stock. Inventory is a big upfront cost, and slow-selling models can tie up cash.

How much can a water heater supply depot earn?

Monthly revenue is typically estimated at around $15,000 to $60,000, depending on the contractors you serve, your product range and your delivery area. That is revenue before inventory and operating costs. Plan for at least 40 hours a week.

What rules should I check before opening a water heater depot?

Check zoning and your lease for warehouse use and customer pickup, and ask your state about sales tax registration and resale certificates. Also check federal and state efficiency rules for the products you stock, warranty claims and insurance.

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