Pool Service vs DIY Annual Cost Calculator

A weekly pool service typically runs $80-180 per visit in 2026 US markets.
The service includes water testing, chemical adjustment, vacuuming, and skimmer cleaning.
Across a 26-week swim season that is $2,080-4,680, which is sometimes more than annual heating costs and often more than the property tax on the pool itself.

The math:

annual_service_cost = visits × cost_per_visit + opening + closing + repairs annual_diy_cost = chemicals + equipment_amortized + opening_supplies + closing_supplies + repairs + your_time

A worked example for a 20,000-gallon pool.
Service: $120/visit × 26 visits = $3,120.
Spring opening: $250.
Fall closing: $300.
Estimated repairs (replacement parts, motor service): $200.
Total service annual: $3,870.

DIY for the same pool, split the way the boxes on this page are split.

Consumables, which is what the chemicals box asks for:

• Chlorine tablets or liquid: $300-450/season, call it $370
• Algaecide and shock: $150
• pH and alkalinity chemicals: $60
• Test strips or kit: $40
• Filter cartridges or DE: $80

That is $700.

Equipment, amortized over its life:

• Pool pole, brush and skimmer net: $30/year
• Robotic cleaner: $150/year (a Dolphin or Polaris spread over 5 years)

That is $180.

Opening supplies $80, closing supplies and cover $120, repairs $200, so $400 of extras.

Total DIY: $1,280/year.

Time investment: 2 hours per week for testing, vacuuming, brushing, and chemical addition × 26 weeks = 52 hours.
Plus 4 hours each for opening and closing = 60 hours total per year.

At $30/hour, the time is worth $1,800.
DIY with time counted: $3,080.
Service still costs more, by $790 a year.

The number that actually decides it is your hourly rate. Service and DIY tie when the value of your time is (3,870 − 1,280) ÷ 60 = $43 an hour. Below that, doing it yourself wins even after paying yourself properly. Above it, the service is the rational purchase, and the calculator tells you where your own numbers cross.

DIY wins on cash almost every time. What it costs you is the 60 hours.
Pool service makes economic sense for households where the alternative use of those hours genuinely earns more than the break-even rate: a second job, a business, or simply not spending every Saturday morning on it.
For retired homeowners or people who quite enjoy the pottering, DIY is the obvious choice.

Three practical points.
A robotic pool cleaner (Dolphin Maytronics, Polaris) takes away the most time-consuming part of DIY, which is manual vacuuming. The 2 hours a week above already assumes you have one; without a robot, budget closer to 3.
The $1,200-1,800 upfront cost amortizes to $150-200/year over 5 years, which is the $150 sitting in the equipment line of the example.
Pool services charge premium prices for repairs like motor replacement and filter overhaul, so even committed DIY owners often hire out the once-a-decade major service.
And in-ground pool service in the South, where the pool is open 10-12 months, costs about 50% more annually than seasonal service in the North.

A note on chemistry quality.
DIY pool care done well can match or exceed pool service quality, but DIY done poorly can cost $500-1,500 in damage to liner, equipment, or plaster from incorrect chemistry.
The break-even on hiring a service for the first year while you learn the chemistry is often worth it for first-time pool owners.
After year one, most homeowners can manage their own pool comfortably.