CCC Pool Service
“They have been servicing my pool for 35 years, they have helped me keep it fresh, safe and ready for enjoying all year long.”
Best Pool Service & Cleaning Companies in San Marcos, CA
10 contractors listed · 6 in San Marcos · 4 open weekends · 7 rated 4.5+ · 2 show a license
Data verified October 15, 2026
Triton Water Renewal LLC
“Seems to have immediately solved our problem, and we've struggled with this issue for months.”
Nathan Baker's Pool Services
Clear Expectations
“They did a great job on the various phases from demo, to repairing and replacing the rebar, for plastering, tiling and resurfacing.”
Jason's Pool Service Co.
“Jason will come himself so you know who will be working on your pool and you can establish a solid business relationship with him.”
Safewater Pool Care INC
The 10 contractors listed for San Marcos, CA look after pools that are already in the ground. Ask what the routine visit covers and what is billed apart from it, since chemicals, filter cleans and equipment repairs are often quoted separately from the route price.
Area overview: San Marcos, CA
6 of the 10 contractors we list are based in San Marcos; the other 4 serve San Marcos from San Diego (21 mi) and Escondido (6 mi). 8 of the contractors on this page have a rating, from 4.2 to 5.0 across 341 reviews; 2 have 50 or more reviews and 7 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (95%), responsiveness (75%) and quality (70%). 4 are open on Saturdays and 1 on Sundays. 2 show a license on their websites and 1 has a BBB rating of A or A+. Domain records put 6 websites of the contractors on this page at ten or more years old; the oldest dates from 2003. 1 gives free estimates and 2 are family- or locally-owned. We have a website on file for 7 of the contractors on this page; 5 publish a contact page and 5 list a public email. We count these figures across the contractors on this page; distances are straight-line, and hours and prices change, so confirm the details with the contractor before you book.
Do pool cleaning companies have to be based in San Marcos?
6 of the 10 listings are based in San Marcos and the rest fall within 25 mi. Routes matter more than addresses in this trade: what you want to know is whether your street is on a scheduled run or a special trip.
Coral Pools
Water F-X Pool Service
“The owner is so knowledgeable, and is so passionate about his work..”
James K Pools & Spa
“His wife helps with the billing and is constantly communicating to make sure there are no misunderstandings.”
Byron's Pool Service and Repair
Why these companies made our list
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