Pool Builders Houston: Local Data on Pool Builders in Houston, TX

Pool builders in Houston start with rain and the floodplain

Houston gets more rain in a normal year than its pools lose to evaporation, which shapes drainage, decking and permits.

Houston Intercontinental records 51.84 inches of rain in a normal year and 15.5 days with an inch or more (NOAA 1991 to 2020 normals). A pool here loses an estimated 47.4 inches to evaporation, so rain makes up about 93.1% of the loss. The net is roughly 3.3 inches a year, or 916 gallons for a 15 by 30 foot pool, against 13,297 gallons before rain (PC&S pool evaporation study).

That surplus is the reason Houston pool construction plans pay close attention to where water goes. In unincorporated Harris County, the county’s Engineering Department requires an As-Built Certificate for a pool built in the floodplain, and all excavated fill must leave the site or be permitted under the county’s floodplain rules. Pools outside the floodplain need a site plan and application but no county inspection (Harris County Engineering: Swimming Pool permit).

Who approves a Houston pool: Health Department plan review

Inside the city, new residential pools are reviewed by the Houston Health Department, with fees paid through the Houston Permitting Center.

The Houston Health Department reviews and regulates all new residential pool and spa construction in the city. Completed plans go to the Houston Permitting Center at 1002 Washington Avenue, and the department’s plan standard lists 16 items (Houston Health Department). The items that most often change a design:

• A full enclosure, drawn and labelled Every fence and gate type and height must appear on the plan. Under Chapter 43, Section 43-33 of the Houston Code of Ordinances, pool gates must close and latch on their own.
• No driveway gates in the enclosure Driveways, garages and carports must sit outside the pool fence, and driveway gates cannot form part of it.
• Light interior finish An 8-inch black disk must be visible from the deepest point of the pool floor, so dark plaster colors and dark fiberglass shells are not approved.
• Filter backwash to the sanitary sewer Diatomaceous earth and high-rate sand filters must backwash through a p-trap to the sanitary sewer.
• Safe drains and protected water supply Main drains must meet ANSI/APSP/ICC-16 2017, and the fill line needs backflow protection such as a 6-inch air gap.

Houston is one of the cities we could not time. It publishes no permit-level open dataset with pool records, so it is excluded from our permit processing time and build cost studies. Other Texas cities show how wide the range can be:

What Houston pool builders charge when no permit prices are published

Because Houston publishes no permit values, any single Houston price figure is an estimate from elsewhere. National cost guides put a typical in-ground pool at $44,499 to $87,349 (Angi, 2026, average $65,909) or $25,000 to $100,000 (HomeGuide, 2025, average $62,500). The closest Texas permit record is Fort Worth, where the 394 new pool permits with a usable 2025 value had a median declared value of $65,000 and a middle half of $50,000 to $87,000 (build cost study). Austin recorded a usable value on only 4.1% of 2025 pool permits, and San Antonio records none.

Harris Central Appraisal District gives a second local signal. HCAD prices pools per square foot before adjustments: $40 for gunite, $34 for fiberglass, $32 for reinforced concrete, $27 for prefab vinyl and $19 for a plastic liner (2026). Its recorded value for the 1,631 pools built in 2025 had a median of $21,606 on a median 450 square feet (pool property tax study).

Filling a pool on Houston water costs the most of 25 cities we priced

Houston bills wastewater on every gallon of a month’s water use, with no winter average and no cap. Filling a 20,000-gallon pool through the home meter costs about $649.98, the highest of the 25 cities in our fill study and ahead of Atlanta at $584.23: $345.98 for water and $304.00 for sewer, or $32.50 per 1,000 gallons at the rates that took effect April 1, 2026, when combined bills rose an average 7.87% (Houston Public Works rate schedule, analysed in our cost to fill a pool study).

There is a cheaper legal route. Houston rents transient (temporary) meters for $167.50 a month plus $13.81 per 1,000 gallons, billed as water only. Filling 20,000 gallons that way costs about $443.70, a saving of $206.28. Homes with a separate lawn or outdoor meter pay the same $13.81 rate with no sewer charge, plus an $8.23 monthly meter charge.

Topping off is cheap because the rain does most of the work: about $25.40 a year after normal rainfall, against $368.85 if no rain fell. Houston has had no watering restrictions since Stage One of its drought plan was rescinded on May 29, 2024. The plan treats filling a pool as non-essential use, and Stage III would cap households at 5,000 gallons a month (Houston Public Works).

Hiring Houston pool contractors in a state with no pool license

Texas issues no state license for building residential pools; the state business permit guide classes pool construction as a local matter. The Texas Department of Licensing and Regulation’s residential appliance installer license (Occupations Code chapter 1305) covers only pool-related electrical maintenance (pool contractor licensing study). In practice the Houston plan review, the electrical and plumbing permits and your contract carry the weight a license carries in Arizona or Florida.

• Name on the plans Houston requires the construction company’s name and address on every plan sheet. Make sure it matches the company on your contract.
• Licensed trades for wiring and gas Ask who pulls the electrical permit and which Texas-licensed electrician does the bonding and wiring.
• Insurance in writing With no state bond or recovery fund, ask for general liability and workers’ compensation certificates.
• Floodplain status before the dig In unincorporated Harris County, ask who obtains the As-Built Certificate and where the excavated soil will go.
• Payment tied to inspections Link draws to passed inspections, not to calendar dates.

Texas barrier rules come from the Local Government Code: cities that regulate pools apply the 2018 International Swimming Pool and Spa Code, with a 48-inch minimum barrier, and Health and Safety Code chapter 757 covers apartment and property owners association pools (pool fence laws by state). Houston’s own gate rule in Section 43-33 sits on top of that.

A 193-day swim season and Houston running costs

Houston averages 193 days a year with a normal high of 80F or more, from April 15 to October 24 (swim season index, NOAA 1991 to 2020 normals). The real season ran longer in 2025: Houston Intercontinental logged 259 such days, 49.9 above its long-run average of 209.1. Extreme heat is rare by Phoenix standards, with 7.0 days a year at 100F or more and an August normal high of 94.9F, while 10.1 nights a year fall to 32F or below, enough to plan freeze protection for exposed plumbing.

At the July 2026 Texas residential electricity price of 15.88 cents per kWh, a single-speed pump running a 365-day season costs about $1,259 a year and a variable-speed pump about $389, a saving of $870 (pool pump cost model). For heating, a Texas home using EIA’s average gas pool heater consumption would spend about $806 a season at 2025 prices, or about $320 with a heat pump (pool heating cost study).

Harris County property tax and the Houston resale premium

Texas caps the yearly rise in a homestead’s appraised value at 10%, but a new improvement such as a pool is added on top of the cap at its market value from the next January 1 (Tax Code 23.23). Harris County’s average combined rate was $2.2821 per $100 in 2025. A pool valued at HCAD’s 2025-built median of $21,606 would add about $493.07 a year; $40,000 of value would add about $912.84, or $228.21 per $10,000.

On resale, Redfin’s 2018 analysis put the Houston pool premium at $35,736, or 15.4% of the $232,000 median sale price, with a pool in 16.6% of 2018 sales (pool home value study). The only peer-reviewed Texas estimate, from San Antonio sales in 2001 to 2002, ranges from 1.6% to 9.6%, so treat the Redfin figure as a ceiling.

In the 2015 American Housing Survey, 17.5% of single-family and mobile homes in the Houston metro had a pool, and 31.8% of all occupied homes had one on the property once apartment complexes are included; 41.8% of those pool homes were single-family (homes with pools study). The city runs 45 public pools, 1.88 per 100,000 residents, up from 42 in the 2018 count (public pools by city). Texas recorded 639 pool drowning deaths from 2018 to 2024, including 246 children under 5 (drowning data).

Houston pool services, guides and nearby city pages

Useful guides: the pool construction process, pool planning checklist, pool permit guide and pool service cost. Browse every data report on our research hub.

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