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Every company we could verify that installs whole-home water filtration, softeners or reverse osmosis in Allen, with services, Google ratings and licenses pulled from their own sites.
Updated October 2, 2026 · Published by North Texas Water Solutions LLC
Allen is served mostly by local plumbers with dedicated water treatment pages (Thorough Plumbing, O'Bryan, Augerpros) and by DFW-wide specialists. The City of Allen publishes its water quality data online.
Order: companies that publish dedicated whole-home filtration pages and list more water treatment services come first, then Google rating and review volume. It's a starting point, not an endorsement. Methodology.
Companies whose main business is water softeners, filtration and reverse osmosis.
Water treatment specialist
The local Culligan franchise for DFW, in business since 1947. Sells Culligan-branded softeners, whole-house filters and reverse osmosis, with a free in-home water analysis before quoting.
Water treatment specialist
Richardson water treatment company operating since 2000. Installs whole-home filtration, softeners and reverse osmosis, with financing and payment plans.
Water treatment specialist
Flower Mound water treatment company (founded 2020) installing Clack and Pentair softeners, whole-home filtration, well-water treatment and RO. Displays a TCEQ water treatment license number.
Water treatment specialist
Family-owned Fort Worth company serving all of DFW, including Collin County. Advertises free installation and a lifetime warranty on whole-home softener and filtration systems.
Water treatment specialist
Plano water treatment company (listed on Google as Avincii Water) selling DROP-branded systems. One of the few that publishes prices: whole-house treatment listed at $8,177.75.
Water treatment specialist
Arlington water treatment dealer carrying Hague and Lancaster equipment. Installs whole-house filtration, softeners and RO, with a free water test before an estimate.
Water treatment specialist
Water treatment company based in Coppell serving DFW to Houston. Publishes a Frisco service page and lists softener packages starting at $2,310, plus salt-free conditioners and chloramine filters.
Water treatment specialist
Plano water treatment dealer (Legacy Dr) installing Puronics whole-home treatment, softeners and multi-stage RO. Offers a free water test and several financing options.
Water treatment specialist
Frisco location of Axis Water Technologies offering water softeners, reverse osmosis and filtration, with a free consultation and quote.
Water treatment specialist
Plano-based authorized, independent Kinetico dealer offering Kinetico softeners, drinking-water systems and salt-free options, plus water testing.
Plumbing companies with a dedicated water filtration or softener service line.
Plumber · water treatment
Frisco HVAC and plumbing company (since 1998) with whole-home filtration, water softener and RO pages, including treatment for iron, sulfur and sediment.
Plumber · water treatment
Benjamin Franklin Plumbing's North Dallas franchise, with locations in McKinney and Plano. Has dedicated water filtration system and water softener installation pages.
Plumber · water treatment
Little Elm and Frisco plumber offering whole-home water filtration and reverse osmosis systems.
Plumber · water treatment
Frisco plumber with water filtration, softener and well-pump filtration pages, and a HALO dealer.
Plumber · water treatment
McKinney plumber (since 2001) offering whole-home filtration across Collin County and promoting the HALO system. Says it tests before recommending a softener or filter.
Plumber · water treatment
Allen and Plano plumber in business since 1982 with filtration, softener and water treatment pages. Its site also covers the downside of whole-home RO.
Plumber · water treatment
Earl's Plumbing has served North Dallas since 1972, with branches in Frisco, Plano and McKinney. Publishes an $800–$3,000 equipment cost range for customer-purchased systems.
Plumber · water treatment
McKinney HVAC and plumbing company (since 1986) offering whole-home HALO water systems.
Plumber · water treatment
Berkeys has served DFW since 1975. Offers whole-house filtration, salt-based and salt-free softeners, carbon filters and reverse osmosis. Frisco branch.
Plumber · water treatment
Allen plumber with dedicated pages for whole-house filters, water softeners and water treatment in Allen. Licensed M-44270.
Plumber · water treatment
Large DFW home services company with a water quality page that covers whole-house filtration and softening systems.
Plumber · water treatment
Denton-based water heater and plumbing company (since 1994) with a whole-house filtration and softener service line covering DFW, with free estimates.
Plumber · water treatment
Plano plumber with dedicated water filtration and water softener installation pages.
Plumber · water treatment
Mother Modern Plumbing's Plano branch, founded 2018, with dedicated whole-home water filtration and whole-house softener pages for Plano.
Plumber · water treatment
McKinney plumber offering Kind-brand water filtration, water softener installation and salt-free conditioning systems.
Plumber · water treatment
Allen plumbing and drain company (founded 2023) offering whole-house filtration, water softeners and descalers.
Plumber · water treatment
Dallas plumber that lays out its options plainly: whole-home carbon filter for chlorine and sediment, softener for hardness, salt-free conditioner.
Plumber · water treatment
McKinney plumber with a detailed water filtration page that covers sizing softeners and whole-home filters for Collin County homes.
Plumber · water treatment
McKinney plumber that installs and repairs water filters and softeners, including Aquasana systems.
Plumber · water treatment
Plano plumber with water filter, water softening and Plano softener installation pages.
Sources: NTMWD 2024 Water Quality Report; Community Impact: annual chlorine maintenance in March.
City data: City of Allen Water Quality.
More detail in the Collin County water quality guide.
This guide found 30 companies that install whole-home filtration or softeners in Allen: 10 dedicated water treatment specialists and 20 plumbing companies with a water treatment service line. Each one is listed above with its services, Google rating and contact details.
Allen's water meets state and federal standards. Homeowners add whole-home filtration for taste, smell and chloramine, and a softener for hardness and scale. Neither is required for safety. Your city's annual water quality report shows the measured levels.
Published prices in this market range from about $2,300 for an entry softener package to over $8,000 for a premium whole-house treatment system. Most companies quote only after a consultation. See the cost guide for every price we found.
Both can do the job. Specialists usually carry more equipment choices and handle ongoing service; plumbers are often faster to schedule and handle any repiping. In Texas, ask for either a plumbing license number or a TCEQ Water Treatment Specialist license. See the hiring guide.