Pool service is route work. Once you have enough customers close together, you visit the same pools every week: skim, brush, vacuum, empty baskets, test the water, add chemicals and check the equipment. That's what makes it a good small business: steady monthly revenue from a list of regular customers. It's also why the first year is about building routes, not one-off jobs.

This guide covers how to start a pool cleaning business step by step: what to offer, licensing, certification, chemical safety, equipment, pricing and finding customers. Licensing rules vary a lot by state, so treat the state examples here as a starting point, not legal advice.

1. Decide what services you'll offer

Most pool cleaning businesses start with some or all of these:

  • Weekly cleaning and chemical service. The core of the business: skim, brush, vacuum, empty skimmer and pump baskets, test and balance the water.
  • Chemical-only service. Test and balance only, for owners who clean their own pool. Shorter stops, lower price.
  • One-time cleanups. Green pools, post-storm cleanups, vacation homes. These pay well but don't build a route.
  • Filter cleaning and equipment checks. Filter cleans are a common add-on each season. Check your state's rules first: Florida, for example, treats cleaning that requires taking equipment apart as licensed work, though filter changes are excepted.
  • Openings and closings in places where pools close for winter.
  • Repairs and equipment replacement. Pumps, motors, filters, heaters. In many states this is licensed contractor work (see the next section).

Residential weekly service is the usual way in. Commercial pools (HOAs, apartments, hotels) pay more but usually come with health department rules and certification requirements.

2. Check licensing in your state

The key question is where cleaning ends and contracting begins. Three big pool states show how it can work:

  • Florida. The contractor licensing law has commercial and residential pool/spa contractor licenses and a pool/spa servicing contractor license for repair and servicing. But it also says that using pool equipment "for the purposes of water treatment or cleaning does not require licensure unless the usage involves construction, modification, or replacement of such equipment," and that "a license is not required for the cleaning of the pool or spa in a way that does not affect the structural integrity of the pool or spa or its associated equipment." In practice: routine cleaning and chemicals are open to anyone, but repairs, equipment replacement and cleaning that requires taking equipment apart (filter changes excepted) are licensed work.
  • California. The Contractors State License Board's pool and spa maintenance classification (D-35) covers installing, replacing or repairing pool motors, pumps, filters, gas heaters, above-ground piping, switches and lights. Its description doesn't mention routine cleaning, but it does list pool and spa acid baths (acid washes), so treat those like repairs. Separately, since January 1, 2025, unlicensed people may only take on minor jobs below $1,000 that need no permit, with no employees, and any ads must say they're not licensed.
  • Arizona. The Registrar of Contractors has an R-6 Swimming Pool Service and Repair classification for servicing and minor repair of residential pools and their equipment, with C-6 for commercial pools.

Whatever your state, contact the state contractor board before you offer repairs, and ask your city or county about a general business license. If you plan to hire, ask whether the rules change once you have employees, as they do under California's minor work exemption.

3. Register the business and get your numbers

The SBA's guide to launching a business covers the basics: choose a business structure, register your business name, and get the licenses and permits your location requires. The requirements and fees vary by business activity and location. Get an employer identification number (EIN) from the IRS. It's free and takes minutes online, so avoid websites that charge for it. Open a separate business bank account from day one.

4. Get certified

The Certified Pool & Spa Operator (CPO) certification from the Pool & Hot Tub Alliance is the best-known credential in the industry. It needs no industry experience: you take the course and pass the exam. The course is about 16 hours, either two days in a classroom or an online course plus a one-day class. The certification is valid for five years. Prices vary by class, so compare a few local options.

We didn't find a state that requires CPO certification for residential pool service. But it's commonly required for people who maintain public pools. Florida's health department rules, for example, require pool service technicians to be certified to service a public pool by maintaining its cleanliness, water quality and chemical balance. If you want HOA, apartment or hotel accounts, get certified first. Homeowners like seeing it too.

5. Get insured

The SBA notes that some business insurance may be legally required, depending on where you are and whether you have employees. For a pool service, talk to an agent about:

  • General liability, for damage or injuries connected to your work
  • Commercial auto, since you'll drive a loaded truck all day
  • Workers' compensation once you hire, where your state requires it
  • Coverage for chemical incidents, such as damage from a spill or a reaction, and whether your liability policy covers them

Commercial customers and property managers often ask for a certificate of insurance before you start.

6. Learn the chemistry and handle chemicals safely

Water chemistry is the job. The CDC recommends a pH of 7.0 to 7.8 and free chlorine of at least 1 ppm in pools, or at least 2 ppm when the pool uses cyanuric acid or stabilized chlorine (dichlor or trichlor). For hot tubs, it recommends at least 3 ppm and no cyanuric acid. You'll also manage alkalinity, calcium hardness and stabilizer levels. The CPO course covers all of it.

Safe storage and handling. The CDC's pool chemical safety guidance says to store pool chemicals below 95°F (35°C), out of direct sunlight and as the manufacturer recommends. Store each chemical separately, because pool chemicals can injure people when mixed. Keep current safety data sheets (SDSs) near storage, use the right protective equipment, and only let trained people handle them. That applies to your garage and your truck as much as to a pool equipment room.

Pesticide rules. Pool sanitizers and algaecides are EPA-registered pesticides, and EPA lists swimming pools among the main uses of general use disinfectants. Some states treat applying them for hire as a pesticide applicator category. Michigan, for example, has a commercial category for swimming pools covering applicators who use pesticides to manage algae and bacteria in public or private pools. Ask your state agriculture department whether you need an applicator license.

Transporting chemicals. Federal hazardous materials rules have a "materials of trade" exception for small amounts carried in a business vehicle. For Class 8 corrosives and Division 5.1 oxidizers in Packing Group II or III, each package can be up to 66 pounds (30 kg) or 8 gallons (30 L). All materials of trade on the vehicle together can't exceed 440 pounds (200 kg). Packages must be in the manufacturer's original packaging or one at least as strong, closed, leak-tight and secured against shifting, and marked with the chemical's name. Anyone driving the truck must know the chemicals are on board and know these rules. Check each product's label and SDS for its hazard class and packing group.

7. Buy the equipment

A typical starter kit for residential service:

  • A reliable truck or van with secure, ventilated space for chemicals, kept apart from each other
  • Telescoping pole, leaf skimmer and leaf rake, wall and tile brushes
  • Vacuum head and hose, and later a leaf canister or a cleaner for large debris
  • A professional water test kit that measures free and total chlorine, pH, alkalinity, calcium hardness and cyanuric acid
  • Chemicals: chlorine (liquid and/or tablets), acid for lowering pH, pH and alkalinity increasers, stabilizer, algaecide and others as your routes need
  • Personal protective equipment: chemical-resistant gloves and eye protection at a minimum
  • Basic tools for opening baskets, lids and filters, and a hose for filter cleans

Buy chemicals in sizes you can carry legally and store safely, and don't stock more than a couple of weeks' worth while you're small.

8. Price your service

Most pool services charge a flat monthly fee per pool for one weekly visit. The main choice is whether chemicals are included:

  • Chemicals included: simple for the customer, but you carry the risk on pools that use a lot of chlorine. Price by pool size and condition.
  • Chemicals extra: a lower base fee plus chemicals used, billed monthly. Fairer on heavy-use pools but harder to explain.

To set your price, work out:

  1. Time per stop, including driving between stops. Tight routes are where the profit is.
  2. Chemical cost per pool per month, from your supplier's prices.
  3. Your hourly target, covering your pay, the truck, insurance and equipment.

Charge separately for one-time cleanups, green pools, filter cleans and anything outside the weekly scope. Write the scope and price into a simple service agreement. Our HVAC service agreement template shows the structure of a recurring service contract you can adapt. Invoice monthly using a contractor invoice template or invoicing software.

9. Find your first customers

  • Google Business Profile. Many people search "pool cleaning near me." Set up your profile as a service-area business, with photos of real pools you service and your service area. Our Google Business Profile guide walks through it.
  • Reviews. Ask every happy customer. Our guide on how to get more Google reviews has request templates.
  • Neighbors of your current customers. Door hangers and yard signs on the streets you already serve make routes denser. See our yard sign guide.
  • Realtors and property managers. Homes for sale and rentals need clean pools fast.
  • Buying a route. Some new owners buy an existing route instead of building one. If you do, check the customer list, monthly billing and how long customers have stayed before you pay.

10. Run it like a route business

As you grow, the work is mostly scheduling and billing: recurring weekly visits, route order, chemical readings per pool, photos for the customer, and automatic monthly invoices. Route-based field service apps handle this. GorillaDesk, for example, prices by route rather than per user. Our field service management app comparison and cleaning business software roundup compare options and prices.

Pool cleaning business startup checklist

  • Choose services: weekly cleaning, chemical-only, cleanups, filter cleans, repairs (licensed)
  • Check state contractor licensing and local business license rules
  • Register the business, get an EIN, open a business bank account
  • Take a CPO course (required for public pools in many places)
  • Get general liability, commercial auto and, once you hire, workers' comp
  • Check whether your state requires a pesticide applicator license
  • Set up safe chemical storage and learn the materials of trade limits
  • Buy tools, test kit, chemicals and PPE
  • Set monthly pricing and write a service agreement
  • Create a Google Business Profile and start collecting reviews
  • Build routes street by street and set up scheduling and recurring invoicing

Thinking about other cleaning work? See our guides on how to start a cleaning business how to start a pressure washing business (a natural add-on for pool decks and patios) and how to start a window cleaning business.