Lonz Pools Service

3.3(20)
  • 63 hires
  • Based in Ontario, CA
  • 14 years in business
  • 2 employees
  • Responds in about 2 hours
  • Background checked

About Lonz Pools Service

Great service for Great pricess. Service areas in Ontario, Rancho Cucamonga, Upland. All of San Bernardino. and Riverside Also Service Commercial accounts. We also do Plaster work, Cement work. Pump and filter installs

Reviews

Thumbtack customerAug 2026

come and check out the product that needs warranty so I can have secret

Thumbtack customerJul 2026

I called Mario to get help with my dads pool. He was there within an hour! His pump was not working. Feedback i received from my dad "I love that guy" He knows his stuff. Fixed it just like that! Couldn't tell you the last time I heard my dad say he loved somone ha..ha.. I even warned Mario dad gets a lititle grumpy and has no filter. He is going to be his new pool guy from here on out. Knows his stuff and priced wellyou can't go wrong! Thanks Mario!

Thumbtack customerApr 2026

Made me wait all day Monday for him to let me know what time he was coming . He never came . Doesn’t communicate at all. Very unethical and bad business .

Justin L.Jul 2025

Mario came to my house and took care of business for my pool. After just one visit the pool looks better than it has in quite some time. His rates are better than most and he’s down to earth.

Cycely S.Jan 2025

The man has messed up my pool he has not showed up. He only responds to text messages when he feels like it now my pool is completely black because he keeps saying he’s gonna show up and never does very very unprofessional. I would give him zero stars if I could. Now is gonna cost me way more to get my pool back the way it was when he initially touched my pool, very disappointed. He should not be allowed to have a professional platform when he’s not doing professional work I’m angry.

Ted C.Apr 2024

Never showed and never responded to any request to let me know what was happening. I plan on leaving a 1 star Yelp next

ZUOFEI W.Dec 2023

Mario did a great job replacing my pool filter. His expert recommendations and efficient replacement of my pool filter, along with impeccable plumbing work, exceeded my expectations. Mario’s reasonable pricing adds to the overall satisfaction.

Francine M.Sep 2023

Never followed up with repairs that were promised and I paid him

Nelsy G.Apr 2023

I wouldn't trust Mario with my pool ever again. He lied about having cleaned the pool filter. Work was not done thoroughly until mentioning it. I'll gladly take my money elsewhere.

Ken L.Apr 2023

Great job. It’s still working. Had new multiport installed on sand filter

Kayla A.Feb 2023

My mistake for not reading the “specified” areas he works at, so I requested help anyway he let me know it was out of his area but ACCEPTED anyway.. BARELY gave me a set day based on HIS schedule NEVER gave me a time.. when i reached day out of to see what time he was coming the response was “Not sure yet but I'll send you a text a hour before I go” unprofessional and never got a message.. Point is HE NEVER SHOWED.. blame me for not looking right but he accepted after he knew and still didnt show up.

Jose D.Jan 2023

Unprofessional never show up for an appointment

Mariano R.Oct 2022

Quick response!

Services

Lonz Pools Service★ 3.3
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