A modern pool seen from the waterline: a shallow shelf, dark-tiled raised feature and white loungers in warm light

Pool Era field notes · Planning and cost

What Drives the Cost of a Pool in the Texas Hill Country?

Got two quotes for the same size pool and they are far apart? That is normal out here. The ground, the slope and the choices you make change the price more than the size does.

Here is what moves the number, so you can read a quote and ask the right questions.

By the Pool Era teamUpdated October 25, 2026Sources due for re-check January 2027How we research and fact-check

The ground

Rock is the first big swing.

Most of the Hill Country sits on limestone. Texas A&M Forest Service says most of the Edwards Plateau has clay or clay loam on top that quickly turns into rocky clay or solid limestone, and that most of the region has very shallow soil, under 10 inches.[1]

So many digs hit rock early. Rock takes heavier equipment and more time to remove. Some yards also have caliche, a hard, cement-like layer. Nobody knows exactly what is down there until the dig starts.

Ask every builder how their quote handles rock. Is rock included, priced by the hour or day, or excluded? That one line can explain a big gap between two quotes.

The site

Slope, access and setbacks.

Slope. A pool on a hillside may need an exposed wall, a retaining wall or extra steel and concrete. A flat yard usually costs less to build on.
Access. Can an excavator and a concrete truck reach the backyard? Tight gates, septic fields, trees and steep driveways add time and equipment.
Setbacks and safety. San Antonio's pool permit form asks for 5-foot side and rear setbacks measured from the inside of the waterline. It does not allow pools in front of the house. The site plan must show the pool barrier, audible alarms and self-closing, locking gates.[2] Other towns and counties have their own rules, so check yours.
Utility runs. The distance from the equipment pad to your electric panel, and to gas if you heat with gas, adds wire, pipe and trenching.

Your choices

Size matters, but finishes and features matter too.

Spas, sun shelves, waterfalls, lighting, automation and decking all add cost. So does the interior finish. The National Plasterers Council says pool plaster can last up to 20 years with proper care.[3] Pebble Technology International, a pebble-finish maker, says pebble finishes can last over 20 years and plaster 5 to 10 years.[4] Sources disagree, and care matters a lot. Ask for prices on both finishes if you are unsure.

Equipment choices also change the price now and the running cost later. A variable-speed pump, a heater or a salt system each has its own trade-offs.

Water

Filling the pool is its own line.

A new or refinished pool has to be filled. During deeper drought stages, the San Antonio Water System adds a surcharge for single-family homes that use more than 20,000 gallons in a month in Stage 3, or more than 12,000 gallons in Stage 4.[5] Ask how fill water is handled in your quote, and check your water provider's current stage before you set a fill date.

Reading a quote

Questions to ask before you sign.

How is rock handled, and what does it cost if you hit it?
What is not included? Look for decking, fencing, electrical, gas, fill water, haul-off and yard repair.
Who pulls the permit and books the inspections?
What finish, tile, coping and equipment are in the price, by brand and model?
How are changes priced once work starts?

A real price needs someone to see the yard. Conditions vary, so your project gets a written scope and price.

Ask for a quote

More field notes

Sources

Where these facts come from

Sources checked October 25, 2026. Rules, fees and water stages change; check the source before you rely on a number.

Who wrote this

Pool Era team. Pool Era builds, refinishes and cares for pools in the Texas Hill Country, and the founder supervises the work on site. We write field notes from public agency, trade group and maker sources, cited on the page, plus what we see on local jobs.

Sources checked October 25, 2026. Next scheduled check: January 2027. Spot an error? Tell us and we can check it against the source. Our editorial standards

Before you rely on this. This field note is general information, not professional, engineering or legal advice. Every pool and every site is different. What Pool Era does on your project, how and with what warranty, is only what your written agreement says. Local codes and HOA rules change, so check with your city, county or HOA before you rely on anything here. Website terms

Quizzes

Quiz