Online water heater supplier for local contractors

Sell water heaters to local plumbers and HVAC crews by phone and online, with units shipped straight from the distributor or manufacturer.

Startup cost$1k to $5k
Monthly revenue$3k to $15k
Time needed15+ h/week
First incomeWeeks
  • $1k-5k
  • Part-time
  • From home

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 home-based supply business that quotes and sells tank and tankless water heaters, plus fittings and venting parts, to plumbers and HVAC contractors. You hold little or no stock. Orders are shipped or delivered by a distributor, manufacturer or freight partner.

Your first three steps

  1. Learn the main water heater types and brands, then ask distributors and manufacturers about reseller or drop-ship terms
  2. Register your business (sole proprietorship or LLC), get an EIN, and ask your state about a resale certificate
  3. Call 20 local plumbing and HVAC contractors to offer quotes and same-week delivery, and set up a simple online price list
Who pays

Independent plumbers, small HVAC companies, property managers and landlords who want a quick quote and a delivery date.

How it makes money

You earn the margin between your trade price and your selling price on each unit and part. You can add a delivery or handling fee. Margins are usually thin, so repeat contractor accounts matter more than one-off sales.

Skills that help
  • Sales and relationship building
  • Learning product specs (fuel type, capacity, venting, sizing)
  • Organizing orders and follow-up
  • Customer service
Watch out for
  • Check whether brands require an authorized dealer or distributor agreement before you can sell or give warranty support
  • Ask your state about sales tax registration and resale certificates
  • Check federal and state efficiency and labeling rules for the models you sell
  • Damaged freight, wrong-model orders and returns can wipe out a thin margin, so agree clear return terms with suppliers
  • Get general liability and product liability insurance, and check any home occupation or HOA rules

Deep research report · US

Everything you need to start: online water heater supplier for local contractors

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 drop-ship business?

Startup costs are typically estimated at around $1,000 to $5,000, depending on your setup and insurance. Because you hold little or no stock, costs can stay low, but agree clear return terms with suppliers.

How much can a water heater supplier earn?

Monthly revenue is typically estimated at around $3,000 to $15,000, depending on how many contractors you serve. Damaged freight, wrong-model orders and returns can wipe out a thin margin, so watch these closely.

What should I check before selling water heaters to contractors?

Check whether brands require an authorized dealer or distributor agreement before you sell or give warranty support. Also ask your state about sales tax registration and resale certificates, check federal and state efficiency and labeling rules, and review insurance and home occupation rules.

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