Sunnyvale's residential pool inventory spans several decades of construction, and the challenges pool owners face here reflect that range. Pools installed in the 1970s and 1980s may have plaster surfaces that have been resurfaced once or twice and are approaching another cycle, sometimes showing roughness, pitting, or calcium scaling that chemical treatment alone cannot correct. More recently installed pools often include heaters and automation equipment that are still within their useful service life but need professional calibration and routine maintenance to continue performing at their designed efficiency.
Sunnyvale falls within the South Bay service area that K&D Quality has covered since 1994, and the technicians who service pools there bring the same systematic approach used across the region. Weekly service in Sunnyvale includes water chemistry analysis, skimmer and pump basket clearing, filter condition assessment, and a visual inspection of equipment for early wear indicators. For pools that need resurfacing or equipment upgrades, the transition is handled with continuity — the technician already familiar with the pool's history manages the repair process rather than handing it off to a separate crew.
The outcome that Sunnyvale customers typically describe after consistent service is predictability. The pool maintains its chemistry through the busy summer months without requiring the owner to constantly retest and adjust. Heaters that were previously unreliable light on the first try. Automation systems that were running on outdated schedules get corrected so filtration and heating actually match when the pool is used. For a Sunnyvale household where the pool has quietly become more of a chore than a pleasure, getting the maintenance right is what turns it back into the feature of the property it was always meant to be.
What We Do in Sunnyvale
Services offered
Weekly Pool Service
Full-service weekly maintenance on a fixed route day. Includes brushing walls and tile line, vacuuming as needed, skimmer and pump basket emptying, filter pressure check, water testing for chlorine, pH, alkalinity, cyanuric acid, and salt, and chemical balancing. Equipment is visually inspected every visit and you get a text or email if anything's off. Same tech every week, never subcontracted. Most San Jose pools fall between $165 and $235 per month depending on size and tree cover.
Diagnosis and repair on every major brand: Pentair, Hayward, Polaris, Jandy, Sta-Rite, Zodiac, Raypak. Pumps, motors, filters, valves, plumbing, timers, pressure switches, unions, and o-rings. The parts that fail first ride on our truck, so most repairs close in a single visit. We tell you what's worth fixing and what's worth replacing, with the actual cost difference in writing before any work starts.
Full pool resurfacing for plaster pools showing stains, rough spots, hollow areas, or 15-plus years of wear, and fiberglass refinishing for gel-coat fading and osmotic blisters. Process includes drain, chip-out or prep, bond coat, new plaster or gel coat, fill and start-up chemistry over the first 28 days. Typical residential job runs 7 to 10 working days plus fill time. We coordinate the whole job, no separate contractors to chase.
Service and repair on attached spas and standalone hot tubs. Heater diagnosis, circulation pump replacement, jet repair, control pack swaps, cover lifter installs, and full drain-and-refills with line flush. We work on Sundance, Hot Spring, Caldera, Jacuzzi, and most older builder-grade attached spas. If the spa shares equipment with the pool, we already know the plumbing. Most diagnostic visits run under an hour and end with a clear written quote.
Salt cell diagnosis, descaling, replacement, and full new-system installation. We install and service Pentair IntelliChlor, Hayward AquaRite, Jandy AquaPure, and CircuPool. Existing cell scaled out? We test cell output and plate condition before quoting a replacement, plenty of cells just need a proper acid bath. New install on a chlorine pool typically runs $1,800 to $2,400 installed for a residential South Bay pool, including the cell, control board, flow switch, and plumbing.
Gas heater and heat pump repair on Raypak, Pentair MasterTemp, Hayward Universal H-Series, and Jandy LXi and JXi. Common fixes: ignition control modules, pressure switches, gas valves, thermal regulators, heat exchangers. We also install replacement heaters and run new gas lines through licensed sub when needed. Cold pool the week before a party? We carry the most-failed parts and most repairs finish same day. Full replacement installs run 1 to 2 days.
