Home / Reverse osmosis
Updated October 2, 2026 · Published by North Texas Water Solutions LLC
Reverse osmosis (RO) treats drinking and cooking water at one faucet, usually under the kitchen sink. It removes most dissolved solids and is commonly paired with whole-home filtration and a softener for the rest of the house. These companies install RO in Collin County.
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.
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.
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
Roto-Rooter's Plano and McKinney branches offer softener, anti-scale and whole-house filtration installs alongside water quality testing.
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
Baker Brothers has served DFW since 1945. Offers water softeners, carbon filtration and FlowTech de-scaling from its McKinney branch.
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.
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
McKinney plumber installing whole-house filtration systems with free water quality testing before recommending a system.
Water treatment specialist
Water filtration manufacturer-retailer with a DFW location. Sells its own whole-home systems, RO and replacement filters, with a free personalized water assessment.
Water treatment specialist
Carrollton water store and installer in business since 1971. Offers whole-house softeners, salt-free conditioners, personalized whole-home filtration and RO 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
The Colony–based water specialist installing Clack-valve softeners, whole-house filtration and drinking-water RO, with water quality testing and resin-type explainers on its site.
Plumber · water treatment
Plano plumber installing whole-home filtration, softeners, RO and drinking-water systems.
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
McKinney plumber with a detailed water filtration page that covers sizing softeners and whole-home filters for Collin County homes.
Plumber · water treatment
Paschal Air, Plumbing & Electric publishes a Frisco water quality page covering whole-home filtration, softening and purification.
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
Plano water refinement company operating since 1997, offering residential water treatment and reverse osmosis systems. Its website has limited detail.
Plumber · water treatment
Plano plumber with water filter, water softening and Plano softener installation pages.
Water treatment specialist
Flower Mound water treatment manufacturer and installer, trusted since 1987 per its site. Builds whole-home filtration, softener and RO systems and offers a free water test.
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
Lewisville independent provider of water treatment, softener and reverse osmosis systems, with a free water test.
Water treatment specialist
Plano-based authorized, independent Kinetico dealer offering Kinetico softeners, drinking-water systems and salt-free options, plus water testing.
Rarely. RO is normally point-of-use at the kitchen sink. Whole-home RO is expensive, wastes more water, and strips the residual disinfectant from household plumbing. O'Bryan Plumbing's site covers this tradeoff.
Some. An RO system sends part of the water to the drain to rinse the membrane. Because it only treats drinking water at one faucet, the total is small compared with the rest of household use, and newer systems are more efficient.
Pre-filters are often changed every 6 to 12 months and the membrane less often. Exact intervals depend on the equipment and how much water you use.