Water Filtration in Texas
Water Filtration across Texas: the 1,353 ZIP codes and 562 cities we route calls in, and who licenses plumbers in the state.
Free to homeowners in Texas — the contractor pays us for the introduction, you never do.
What is in the water
Our water filtration coverage in Texas runs to 1,353 ZIP codes in 562 cities. Large municipalities buy and treat water at scale and publish an annual quality report for the whole system, so what arrives at the tap is well documented — and the variation that is left is mostly in the pipework between the main and the tap.
Source: coverage area as published by our call partner; place and county names from the US Census Bureau.
We route water filtration calls in 1,353 ZIP codes across 562 Texas cities, in 108 counties.
What this site is
ClearTapCall is a referral service, not a contractor and not a laboratory. We connect homeowners with independent contractors for filtration and treatment installation. Contractors are required to hold whatever credential their state or municipality demands, and treatment equipment plumbed into a supply is often a permitted alteration — ask to see the permit. We carry out no work, we sell no equipment, we test no water, we do not set prices, and we never charge homeowners anything. Nothing here is a statement about the water at any address, and no page recommends a product.Checking a credential in Texas
Texas licenses are issued by the Texas State Board of Plumbing Examiners, which publishes a public search you can use before work begins.
26 of the 107 Texas counties we cover, a cross-section, largest to smallest
- Atascosa County 3 ZIP codes
Lytle, Pleasanton, Poteet - Austin County 1 ZIP code
Wallis - Bastrop County 8 ZIP codes
Bastrop, Cedar Creek, Elgin, McDade, Paige, Red Rock, Rosanky, Smithville - Bell County 22 ZIP codes
Killeen, Temple, Bartlett, Belton, Fort Hood, Harker Heights, Holland, Little River Academy and 4 more - Blanco County 4 ZIP codes
Blanco, Hye, Johnson City, Round Mountain - Brazos County 14 ZIP codes
Bryan, College Station, Millican - Concho County 3 ZIP codes
Eden, Millersview, Paint Rock - Delta County 6 ZIP codes
Ben Franklin, Cooper, Enloe, Klondike, Lake Creek, Pecan Gap - Ector County 7 ZIP codes
Odessa, Gardendale - Gillespie County 5 ZIP codes
Doss, Fredericksburg, Harper, Stonewall, Willow City - Grayson County 18 ZIP codes
Sherman, Denison, Bells, Collinsville, Gordonville, Gunter, Howe, Pottsboro and 7 more - Harris County 235 ZIP codes
Houston, Spring, Pasadena, Katy, Baytown, Humble, Cypress, Kingwood and 14 more - Houston County 6 ZIP codes
Crockett, Grapeland, Kennard, Lovelady, Pennington, Ratcliff - Howard County 1 ZIP code
Big Spring - Irion County 2 ZIP codes
Barnhart, Mertzon - Johnson County 12 ZIP codes
Burleson, Cleburne, Alvarado, Godley, Grandview, Joshua, Keene, Lillian and 2 more - Liberty County 5 ZIP codes
Cleveland, Dayton, Hardin, Liberty - Marion County 1 ZIP code
Jefferson - Nacogdoches County 6 ZIP codes
Nacogdoches, Cushing, Douglass, Etoile, Garrison - Navarro County 1 ZIP code
Richland - Palo Pinto County 4 ZIP codes
Mineral Wells, Palo Pinto, Santo - Parker County 10 ZIP codes
Weatherford, Aledo, Dennis, Millsap, Poolville, Springtown, Whitt - Sabine County 2 ZIP codes
Hemphill, Milam - Somervell County 2 ZIP codes
Nemo, Rainbow - Travis County 82 ZIP codes
Austin, Leander, Pflugerville, Del Valle, Manchaca, Manor, Spicewood - Wilson County 3 ZIP codes
Falls City, Floresville, La Vernia
81 more Texas counties are inside the coverage area and are not listed here. If your ZIP code is in Texas, the call reaches a contractor.
What that coverage looks like
Harris County holds 235 of the 1,353 ZIP codes we cover in Texas, and Houston 178 of those. A supply that large is usually one system with one published quality report; the remaining 107 counties contain many smaller systems, each with a report of its own.
How a water filtration job goes
Filtration is chosen from a test result, not from a taste. Hardness, iron, sediment and chlorine each call for different equipment, and a cartridge sized for one does nothing for the others. The order is always the same: find out what is in the water, then decide what has to come out of it, then size the equipment for how much water the house actually uses.
What the call asks about water filtration
- Whether the supply is a public system or a private well, because the testing route is different.
- What the water is actually doing — staining, scale, smell, taste, cloudiness.
- Whether there is a test result already, from the annual report or from a lab.
Every Texas city we route in
236 cities, ordered by the share of housing built since 2000. Plumbing age decides what the water picks up between the main and the tap. Each page carries that city’s own numbers and the ZIP codes we route there.
- Prosper 91%
- Melissa 89%
- Jarrell 88%
- Aubrey 87%
- Little Elm 87%
- Haslet 86%
- Hutto 84%
- Forney 84%
- Manor 83%
- Anna 82%
- Argyle 82%
- Fresno 81%
- Frisco 80%
- Justin 80%
- Richmond 79%
- Liberty Hill 79%
- Cibolo 78%
- Kyle 78%
- Royse City 78%
- Manvel 77%
- Buda 76%
- Celina 75%
- Helotes 74%
- Cypress 73%
- Leander 73%
- McKinney 72%
- Venus 72%
- Pflugerville 72%
- Rosharon 72%
- Wylie 71%
- Keller 71%
- Katy 68%
- Midlothian 68%
- Magnolia 67%
- Tomball 67%
- Georgetown 67%
- Hockley 66%
- Princeton 66%
- Converse 66%
- Spring Branch 66%
- Aledo 65%
- Sachse 65%
- Montgomery 64%
- The Colony 63%
- Roanoke 63%
- Crowley 63%
- Boerne 62%
- New Braunfels 62%
- Dripping Springs 62%
- Rockwall 61%
- Porter 61%
- Mansfield 61%
- Cedar Park 61%
- Del Valle 60%
- Conroe 60%
- Humble 59%
- Round Rock 59%
- Schertz 58%
- Lake Dallas 58%
- Allen 58%
- Spicewood 57%
- Pearland 57%
- Van Alstyne 57%
- Krum 57%
- La Vernia 56%
- Salado 55%
- Bastrop 54%
- Rhome 54%
- League City 53%
- Bulverde 53%
- Burleson 52%
- Spring 52%
- Waxahachie 51%
- Seagoville 51%
- New Caney 50%
- Harker Heights 50%
- Wimberley 50%
- Springtown 50%
- Farmersville 50%
- Weatherford 49%
- Kempner 49%
- Sanger 49%
- Belton 49%
- Dayton 48%
- College Station 48%
- Dickinson 48%
- Willis 47%
- Missouri City 47%
- Floresville 47%
- Bandera 46%
- San Marcos 46%
- Granbury 44%
- Cedar Creek 44%
- Waller 44%
- Poteet 44%
- Cleveland 43%
- Rowlett 43%
- Castroville 43%
- Huffman 42%
- Pipe Creek 42%
- Elgin 42%
- Killeen 42%
- Canyon Lake 42%
- Elmendorf 42%
- Denton 42%
- Austin 41%
- Marble Falls 41%
- Crosby 41%
- La Marque 41%
- Baytown 41%
- Alvarado 40%
- Splendora 40%
- Addison 39%
- Hallsville 39%
- Sugar Land 39%
- Temple 39%
- Joshua 39%
- Cedar Hill 38%
- Lorena 38%
- Grand Prairie 38%
- Bellaire 38%
- Kemah 38%
- Hewitt 38%
- Coldspring 38%
- Decatur 37%
- Midland 37%
- Bryan 37%
- Southlake 37%
- Flower Mound 37%
- Azle 37%
- Livingston 36%
- Horseshoe Bay 36%
- Bacliff 36%
- DeSoto 35%
- Santa Fe 35%
- Whitesboro 35%
- San Antonio 35%
- Quinlan 35%
- Whitehouse 35%
- Fredericksburg 35%
- Copperas Cove 35%
- Woodway 35%
- Lockhart 34%
- Caldwell 34%
- Lancaster 34%
- Fort Worth 33%
- Hawkins 33%
- Smithville 33%
- Seguin 32%
- Grapevine 32%
- Llano 32%
- Stafford 32%
- Plano 32%
- Friendswood 32%
- Balch Springs 31%
- Kingwood 31%
- Colleyville 31%
- Euless 30%
- Pottsboro 30%
- Lewisville 30%
- Devine 30%
- Texas City 30%
- Huntsville 30%
- Bridgeport 30%
- Coppell 30%
- Richardson 30%
- Hitchcock 29%
- Giddings 29%
- Rusk 29%
- Houston 29%
- Trinity 29%
- Alvin 29%
- Lampasas 28%
- Odessa 28%
- Cleburne 28%
- Bowie 28%
- Gainesville 28%
- Lufkin 27%
- Carrollton 27%
- Liberty 27%
- Fort Hood 27%
- Pleasanton 27%
- Gladewater 26%
- North Richland Hills 26%
- Carthage 26%
- Kerrville 26%
- Irving 26%
- Deer Park 26%
- Andrews 26%
- Center 26%
- Huntington 25%
- Gilmer 25%
- Universal City 25%
- Dallas 25%
- Greenville 25%
- Commerce 24%
- Taylor 24%
- Whitney 24%
- Waco 24%
- Longview 23%
- Hondo 23%
- Sherman 23%
- Kilgore 23%
- Pittsburg 23%
- Seabrook 23%
- Mineola 23%
- Marshall 23%
- Highlands 23%
- La Grange 23%
- Amarillo 23%
- Rockdale 22%
- La Porte 22%
- Nacogdoches 22%
- Webster 22%
- Channelview 22%
- Bonham 22%
- Arlington 21%
- Denison 21%
- Henderson 20%
- Abilene 20%
- Lake Jackson 20%
- Hillsboro 20%
- Freeport 19%
- Jefferson 19%
- San Angelo 19%
- Galveston 18%
- Garland 17%
- Mineral Wells 16%
- Luling 16%
- Crockett 16%
- Pasadena 15%
- South Houston 15%
- Hurst 14%
- Mesquite 14%
- Big Spring 13%
- Bedford 11%
Before you call
Filtration starts with knowing what is actually in the supply. The pages above set out which test result points at which kind of equipment.
