808-399-4388 Serving Hawaii Kai & East Honolulu CPO Certified
Paul Costello, owner of Koko Head Pool Service
Meet Your Pool Pro

Paul Costello

Owner & CPO Certified Operator

I've been maintaining and repairing pools across East Honolulu since 2000 — over 26 years of hands-on experience with every type of pool system you'll find on Oahu. I took over Koko Head Pool Service from my father, Jim Costello, who founded the company in 1995.

As a CPO-certified operator, I bring professional-grade knowledge to every pool I service. Whether it's weekly maintenance on a family pool in Hawaii Kai, an emergency pump repair in Kahala, or a salt system installation in Portlock, I treat every pool like it's my own.

I write every article on this site to share what I've learned over nearly three decades of pool care in Hawaii's unique climate. My goal is to help pool owners understand their equipment, protect their investment, and enjoy their pool without the stress.

26+ Years Hands-on pool experience since 2000
CPO Certified Certified Pool Operator credentials
Family Business Koko Head Pool Service, est. 1995
5.0 Stars Perfect rating on Google
Expert Advice

Articles by Paul


Pool care tips, repair guides, and Hawaii-specific advice from 69 articles.

Pool Maintenance Year-Round Pool Season: Hawaii's Advantage and Hidden Challenges Pool Maintenance Trade Winds and Pool Chemistry: The Connection Most Owners Miss Pool Maintenance Red Dirt and Pool Stains: A Hawaii Pool Owner's Guide Pool Maintenance Kona Wind Days and Your Pool: What Happens and What to Do Pool Maintenance Pool Care After a Hawaii Storm: Recovery Checklist Hot Tub & Spa Year-Round Spa Care in Hawaii: No Winterizing Needed Hot Tub & Spa Salt Air and Your Hot Tub: Protecting Equipment on Oahu Hot Tub & Spa Hot Tub vs Pool Chemistry: The Key Differences That Matter Hot Tub & Spa Hot Tub Jets and Pump Problems: Diagnosis and Fixes Hot Tub & Spa Hot Tub Heater Repair in Hawaii: Diagnosis and Fixes Hot Tub & Spa Hot Tub and Spa Maintenance in Hawaii: The Complete Guide Pool Tips How to Choose a Pool Service Company in Hawaii Pool Tips What to Expect from Your First Pool Service Visit Pool Tips Pool Service Contracts: What to Look For Pool Repair Why Pool Equipment Fails Faster in Hawaii (And What to Do About It) Pool Renovation Pool Resurfacing Cost in Hawaii: What to Expect in 2026 Pool Renovation Pool Renovation Guide: What's Worth Upgrading in Hawaii? Pool Equipment Pool LED Lighting: Upgrade Guide and Cost Breakdown Pool Equipment Pool Automation Systems: Is It Worth It in Hawaii? Pool Equipment Pool Salt Cell Lifespan: How Long They Last in Hawaii Pool Equipment Pool Filter Buying Guide: Which Type Is Best for Hawaii? Pool Repair Pool Timer and Automation Repair: Troubleshooting Guide Pool Repair Pool Valve Repair and Replacement: A Practical Guide Pool Repair Pool Plumbing Leaks: How to Find and Fix Them in Hawaii Pool Repair Pool Motor Replacement: What Hawaii Homeowners Need to Know Pool Equipment Pool Equipment Guide for Hawaii Homeowners Pool Equipment Best Pool Pumps for Hawaii: Variable Speed vs Single Speed Pool Repair The Complete Guide to Pool Repair in Hawaii Pool Repair Pool Equipment: Should You Repair or Replace? (Hawaii Decision Guide) Pool Repair How Much Does Pool Repair Cost in Hawaii? (2026 Price Guide) Pool Repair Pool Pump Repair in Hawaii: Signs, Costs & When to Replace Pool Repair Pool Filter Problems? A Hawaii Repair & Maintenance Guide Pool Repair Emergency Pool Repairs: What Counts as Urgent & What Can Wait Pool Maintenance Why Hawaii's Salt Air & Volcanic Water Are Destroying Your Pool Equipment (And How to Protect It) Pool Maintenance How to Fix a Green Pool in Hawaii: A Pool Pro's Step-by-Step Guide Pool Maintenance How Much Does Pool Service Cost in Hawaii? (2026 Pricing Guide) Pool Safety Hawaii Pool Fence Laws: What Every Homeowner Must Know (2026 Guide) Pool Maintenance The Ultimate Guide to Pool Maintenance in Hawaii's Unique Climate Pool Equipment Variable Speed Pool Pumps in Hawaii: Cut Your Energy Bill by 80% Pool Inspections Pool Inspection for Hawaii Home Buyers: Your Complete J-1 Period Guide Pool Renovation Pool Renovation ROI: How Upgrading Your Pool Increases Hawaii Property Values Salt Systems Saltwater vs. Chlorine Pools: Which Is Best for Homeowners? Pool Care What to Consider Before Draining Your Pool in Hawaii Pool Repair Pool Plaster Damage in Hawaii: Warning Signs, Causes, and What to Do Next Equipment Pool Filter Cleaning in Hawaii: The Complete Guide to All 3 Filter Types Water Chemistry Chlorine-Free Pool Treatments: A Hawaii Pool Pro's Honest Guide Pool Tips How to Prep Your Pool for Night Swimming in Hawaii Pool Repair 5 DIY Pool Repairs Hawaii Homeowners Can Handle Themselves Pool Repair DIY Pool Repairs in Hawaii: Pros, Cons, and When to Call a Pro Pool Tips Pool Landscaping in Hawaii: Plants to Avoid and What to Plant Instead Pool Maintenance The Most Costly Pool Maintenance Mistakes Hawaii Pool Owners Make Pool Maintenance Early Signs of Pool Algae in Hawaii: Catch It Before It Spreads Pool Products Pool Heaters in Hawaii: Are They Worth It? A Complete Guide Pool Maintenance When and Why to Acid Wash Your Pool in Hawaii Pool Tips How to Save Money on Your Pool in Hawaii (10 Proven Tips) Pool Safety Pool Pet Safety in Hawaii: A Complete Guide to Protecting Your Dog or Cat Pool Products Pool Finishes That Last Longer Than Plaster in Hawaii Pool Maintenance Best Pool Cleaners for Hawaii Pools: A Complete Buying Guide Pool Safety How to Build an Eco-Friendly Pool in Hawaii: Save Energy, Water, and Money Pool Maintenance DIY vs Professional Pool Maintenance in Hawaii: The Real Cost Comparison Pool Maintenance How to Make Your Pool Plaster Last Longer in Hawaii Pool Maintenance How to Balance Chlorine in Your Hawaii Pool: A Complete Guide Pool Products Pool Water Testing in Hawaii: Every Method Compared by a 26-Year Pro Pool Products Essential Pool Products Every New Hawaii Pool Owner Needs Pool Safety The Best Pool Safety Barriers for Hawaii Homeowners Pool Maintenance How to Check Your Pool Chemistry in Hawaii (And What Every Number Means) Pool Maintenance Quick Daily Pool Maintenance: 5-Minute Tasks That Prevent Big Problems in Hawaii Pool Maintenance How to Keep Your Pool Crystal Clear Year-Round in Hawaii Pool Safety Your Child's First Day at the Pool: A Hawaii Parent's Complete Safety Guide

Ready to Work with Paul?

Call 808-399-4388 or request a free quote.