20 Questions to Ask Before Hiring a Pool Service Company

Most homeowners hire pool service companies the same way they hire anyone — a neighbor's referral, a Google search, whoever answers the phone. That works sometimes. But pool service is a relationship where quality variation is enormous, and a bad operator can damage equipment, mess up chemistry, and cost more to fix than they saved. These questions sort out who knows what they're doing.

Licensing and Insurance (Non-Negotiable)

Before anything else, confirm these — a company that can't or won't answer them clearly isn't worth your time.

Are you licensed in this state?
Pool service licensing requirements vary by state. California, Florida, Texas, Arizona, and most Sun Belt states require contractor licenses for pool service and repair. Ask for the license number and verify it on your state's contractor board website. In some states, basic cleaning doesn't require a license, but any repair work above a dollar threshold does — know the difference.
Do you carry general liability insurance? What's the coverage amount?
$1 million per occurrence is standard. Ask for a certificate of insurance — a legitimate company will provide one without hesitation. If your pool is damaged during service (they crack a pipe, spill acid on your deck, break a pump), you want to know they can cover the claim.
Do you carry workers' comp for your employees?
If an unlicensed, uninsured worker is injured in your backyard, you could be held liable. This question protects you, not them.
Do you hold a Certified Pool Operator (CPO) or other professional certification?
The CPO certification from the Pool & Hot Tub Alliance (PHTA) is a baseline indicator that someone has formal training in water chemistry and safety. Not required by all states, but meaningful — it shows someone passed a real exam rather than just buying a truck.

What the Service Actually Includes

"Weekly pool service" means wildly different things from different companies. Pin down exactly what's included:

What specifically is included in a weekly service visit?
Get a written list. A complete service should include: skimming, vacuuming, brushing, emptying baskets, water chemistry testing, chemical balancing, and a filter pressure check. Some companies exclude vacuuming from basic service or charge extra for it — know what you're buying.
Are chemicals included in the monthly rate, or billed separately?
This is the source of the most billing surprises. Some companies quote a low base rate and then add significant chemical markup on top. Others quote an all-in rate. Neither is inherently wrong, but know what you're agreeing to. Ask for a sample invoice from an existing customer if you want to see what typical monthly totals look like.
How do you test water chemistry? Strips or liquid test kit?
Liquid DPD test kits are more accurate than strips, especially for distinguishing free vs. combined chlorine. A tech using strips is getting rougher readings. Not disqualifying, but worth knowing.
Do you leave a service report after each visit?
A good company leaves a paper or digital service log showing what was found and what was added. This lets you track trends and verify the work was done. Companies that don't document service are harder to hold accountable.
How do you handle chemical additions — are they added from the truck or do you access my storage?
Some companies bring chemicals from their truck and charge retail; others prefer you supply your own. Know how chemicals get into your pool and who's responsible for having them on hand.

Equipment and Repair

Do you do equipment repairs in-house, or do you sub them out?
A company that does repairs in-house is generally faster and more accountable than one that subcontracts. Ask whether the technician who services your pool can also diagnose and fix a pump or heater, or whether that requires a separate person/call.
What's your diagnostic fee for equipment issues?
Most companies charge a service/diagnostic fee for equipment calls — typically $75–$150 — that's separate from repair cost. Knowing this upfront prevents billing disputes.
Do you provide written estimates before doing repair work?
The answer should always be yes. Any company that does repair work without a written estimate — or who says "I'll just fix it and bill you" — is a company you should avoid.
What parts brands do you use? Do you use OEM or aftermarket?
OEM (original equipment manufacturer) parts generally carry better warranties and fit more reliably. Aftermarket parts are cheaper and often fine, but not always. Know what you're getting, especially for major components like motors and pump seals.

Scheduling and Accountability

What day of the week do you service my pool? Will it always be the same day?
Consistent scheduling matters for chemistry management — if the service day shifts by 2–3 days each week, chemical balancing is harder to maintain. Weekly service works best on a predictable schedule.
What happens if you miss a service visit?
Weather, illness, and vehicle issues happen. A good company has a policy: they'll make it up within 24–48 hours or credit the visit. Companies that simply don't show up and don't communicate are a real problem in the pool service industry.
Do I get the same technician every week?
Consistency matters. A tech who knows your pool — your pump's normal pressure, your water's typical chemistry trends, what your yard looks like when everything is normal — catches problems faster. High technician turnover is a flag for a poorly managed operation.
Can I contact you directly with concerns between visits? What's the response time?
Find out how they prefer to communicate (text, phone, app) and what response time to expect. A company that doesn't respond when your pump stops working mid-week isn't providing the service you're paying for.

Contract Terms and Pricing

Is there a contract? How long, and what are the cancellation terms?
Annual contracts often come with discounts. Month-to-month arrangements cost more per visit but give you flexibility. Understand what you're agreeing to — specifically the cancellation clause. A company requiring 60–90 days notice for cancellation with penalties is asking for a significant commitment.
Does your rate change seasonally, and do you service pools year-round in this area?
In year-round swim climates, this isn't usually an issue. In seasonal markets, some companies significantly reduce service in winter or charge different rates. Understand the full year cost.
What's your policy if something is damaged during service?
This is the hardest question, and asking it tells you a lot. A professional company will tell you clearly: any damage caused by their work is their responsibility, covered by their insurance. A company that hedges, deflects, or gives a non-answer on this question is communicating something important about how they handle accountability.

Red Flags to Watch For

During the hiring process, these are signals worth taking seriously:

Reluctance to provide license number or insurance certificate — a legitimate operation provides these readily
No written service agreement at all — a verbal deal protects nobody
Vague answer to "what does the service include" — specificity matters
No reviews or only very recent reviews — pool service businesses typically accumulate reviews over time; a spotless company with 3 reviews from last month is worth investigating
Cash only — legitimate businesses accept checks and cards
First visit with no explanation of what they found or did — a service company should be able to tell you your chemistry readings

For context on what pool service should cost, see our pool service pricing guide. For evaluating how often service is actually needed, see how often your pool needs service. Find pool service companies near you at poolservicemap.com.