COWAY TEXAS
Water Purifiers & Air Purifiers Rental
Rent or buy Coway water purifiers, air purifiers, bidets, water softeners, and massage chairs in Dallas, Plano, Carrollton, and Frisco, as well as Houston, Katy, Austin, and San Antonio. Installation and maintenance every 6 months are handled through Coway's official branch network.
- 13States Served
- 6In-home visits every 6 months
- FREEFree new installation
- 1:11:1 consultation in Korean
Texas Service Areas
Select a region to see the cities where installation is available. Don't see your city? Send us your address and we'll check for you.
North Dallas
Dallas's Korean-American hub, including Carrollton and Plano
- 플레이노
- 캐롤턴
- 프리스코
- 앨런
- 루이스빌
- 더콜로니
Dallas · Irving · South
Downtown Dallas and west/south areas
- 댈러스
- 어빙
- 던캔빌
- 랭커스터
- 허친스
East Dallas
East from Garland and Rockwall to Greenville
- 갈랜드
- 록월
- 와일리
- 로이스시티
- 테럴
- 그린빌
- 셀레스트
- 네바다
- 도드시티
- 화이트라이트
- 파월
- 포인트
Houston
Downtown Houston and western suburbs
- 휴스턴
- 케이티
- 슈가랜드
- 풀셔
Austin
Texas capital Austin and nearby areas
- 오스틴
- 매너
San Antonio
South Texas San Antonio area
- 샌안토니오
Installation may be difficult in areas more than 70 miles from a Coway branch or authorized dealer.
Texas Tap Water: Hardness Varies Widely by City
Tap water in Texas's major cities meets drinking water standards per each water agency's report. But hardness differs dramatically — Austin, which uses lake water, versus San Antonio, which draws from a limestone aquifer, can differ three to four times over.
U.S. Geological Survey (USGS) scale: 0–60 soft, 61–120 moderate, 121–180 hard, 181+ very hard. San Antonio converts the SAWS 15–20 gpg range; Houston and Austin are 2025 averages.
Dallas
0
Lead service lines in the inventory
- Treats water from Ray Roberts, Lewisville, Grapevine and other lakes
- Lead 90th percentile 1.1 ppb; zero sites over the action level
- Rated Superior by the Texas Commission on Environmental Quality
- Meets all state and federal water quality standards
Houston
135.5
mg/L average hardness · range 43.5–229 · hard
- Main system serves about 2.97M; 90.3% surface water, 9.7% groundwater
- Disinfected with chloramine
- 90% of lead tests at or below 5.1 ppb; no samples over 15 ppb
- 2 violations disclosed in 2025 report, including turbidity exceedance
Austin
93
mg/L average hardness · 5.4 gpg · moderate
- Uses Colorado River water flowing through Lake Travis and Lake Austin
- Chloramine disinfection, averaging 2.3 ppm
- No lead service lines in the public water system
- All 2025 test parameters met standards
San Antonio
15~20
gpg hardness · about 257–342 mg/L · very hard
- Edwards-Trinity aquifer groundwater naturally high in dissolved limestone
- SAWS notes hard water is not a health concern
- Lead 90th percentile 1.6 ppb; zero sites over the action level
- No 2025 violations in the main system
Scale and White Spots
In high-hardness areas like San Antonio and Houston, kettles, dishes, and shower enclosures easily develop scale. Split the job: a purifier for drinking water, a softener for household water.
Chloramine Taste and Odor
Houston and Austin disinfect with chloramine. It stays within safety standards, but some households are sensitive to the taste and odor.
Different Water Across Texas
Lake-water cities and groundwater cities differ greatly in hardness. Send us your address and we'll recommend products based on your water provider.
These figures are system-wide data published by the agencies; actual water quality at your home may vary by water provider, season, and building plumbing. Check your local water provider's annual quality report for precise figures.
Popular with Texas Households
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5 Steps to Installation
- 1ConsultKakaoTalk or phone
- 2Place your orderProduct and address confirmed
- 3AgreementIdentity and autopay details
- 4SchedulingConfirmed by phone or email
- 5Installation6-month maintenance begins
Do you install in Carrollton or Plano too?
Yes — installation is available across North Dallas, including Carrollton and Plano. For Houston, Austin, and San Antonio, send us your address and we'll confirm availability.
Is Texas tap water safe to drink as is?
The latest reports from Dallas, Austin, and San Antonio water agencies show tap water meeting state and federal standards. Households usually choose a purifier for disinfectant odor, taste, or mineral content concerns.
What works best in hard-water areas like San Antonio?
SAWS lists tap water hardness at 15–20 gpg. Use a purifier for drinking water; if scale on showers and household water bothers you, consider adding a softener.
Can I install in a townhouse or apartment?
Most homes can be fitted, but renters should check with their landlord or management office first. We'll recommend the right model for your home — countertop or undersink — during your consultation.
How are filters maintained after installation?
During your rental, a Coway specialist visits every 6 months to replace filters and inspect your products. Maintenance is included in your rental fee.
Texas Installation Consultation
Consultations are free — send us your address and we'll confirm installation availability right away.