Pool Repair & Renovation Reviews in Glendale, AZ

To understand a Glendale pool, it helps to understand how pool building itself has changed — because this city lived through almost all of it.

The modern backyard pool really began in the 1940s, when builders borrowed a sprayed-concrete method called gunite from the mining industry. For the first time, a pool could be shaped freely instead of poured into rigid forms, and after World War II a wave of new homeowners turned that breakthrough into a mid-century pool boom. The kidney shape everyone pictures from that era was born here. Through the 1950s and '60s the craft matured fast: plumbing moved from galvanized iron and copper to the PVC we still use today, skimmers and main drains became standard, and pools started to be built to genuinely last.

Founded in 1892 and incorporated in 1910, Glendale grew through those exact decades — from about 8,000 residents in 1950 to past 67,000 by the mid-1970s — and it holds ten historic neighborhood districts to show for it. That means a real share of Glendale's pools were built in the plaster-and-gunite era, before two changes reshaped the industry: the arrival of aggregate finishes like Pebble Tec (invented next door in Scottsdale in 1987–88), and Arizona's pool barrier law in mid-1991. Pools from the older waves often predate both — original plaster that's decades past its prime, and a backyard designed before barrier rules, where the house wall doubles as the fence and a sliding door opens straight to the water. Newer pools on the city's edges were built to the modern standard from the start.

So a Glendale pool is really a snapshot of when its neighborhood went in — and that tells us most of what a renovation needs before we ever get in the water. One thing holds true across every era here: the water is hard, right around 14.6 grains per gallon, which puts it in the "very hard" range. Scaling at the tile line is a question of when, not if — and it's completely manageable once you know it's coming.

Published figures put Glendale's municipal water hardness at roughly 14.6 grains per gallon — comfortably in the "very hard" category as classified by the Water Quality Association (above 10.5 gpg).

West Valley supplies draw on the same mineral-heavy sources as the rest of the metro: Colorado River water through the Central Arizona Project, Salt and Verde River water, and local groundwater. All of it carries dissolved calcium and magnesium.

In a pool, that calcium is the raw material for scale at the waterline and on plaster. Hardness does not cause an ugly pool by itself, but it sets the pace at which surfaces show their age.