Quick Comparison
| Firm | Founded / Tenure & Credentials | Services & Specialties | Geographic Focus |
|---|---|---|---|
| E.J. Willman & Sons Plumbing | 1883 (Edward J. Willman Sr.); five Willman generations | KY Master Plumber, BBB Accredited (BBB Serving Louisville and Western Kentucky) | West Market Street base in Old Louisville (40203); Louisville Metro across Jefferson County |
| Ratterman Plumbing | 1933 (Joseph A. Ratterman); veteran-owned | KY Master Plumber, BBB Accredited | Main Street and Obyrne Avenue base in Louisville (40243); Middletown, Taylorsville, Shepherdsville, Bardstown |
| Southern Plumbing | 1947 (Joseph Ralston, post-WWII); two Ralston generations | KY Master Plumber #J10964, BBB Accredited | Burnett Avenue base in Louisville (40217); Jefferson County and surrounding metro |
| Maupin Plumbing | 40+ year operating tenure under Thomas E. Maupin (founder-operator) | KY Master Plumber, KY Boiler Contractor License, IN Plumbing License (cross-state authority into Indiana), BBB Accredited | Poplar Level Road base in Louisville (40213); Louisville Metro and southern Indiana |
1. E.J. Willman & Sons Plumbing
- Address: 1636 West Market Street, Louisville, KY 40203
- Phone: (502) 585-4428
- Founder: Edward J. Willman Sr. (founded 1883, originally specializing in gas piping); 2nd Generation Edward J. Willman Jr. (1943); 3rd Generation Edward J. Willman III and Paul F. Willman (1960); 4th Generation James “Mike” Willman Sr and Mark Willman (2003); 5th Generation Brooke Willman-Shreves and Fred Dewald (current)
- Operating Since: 1883 (143 years); five Willman family generations spanning the Reconstruction era through the contemporary period
- License: KY Master Plumber; BBB Accredited (BBB Serving Louisville and Western Kentucky)
- Service area: Old Louisville, Highlands, Crescent Hill, Cherokee Triangle, St. Matthews, Clifton, Germantown, Schnitzelburg, Portland, Russell, Smoketown, Phoenix Hill, Butchertown, NuLu, downtown Louisville, Jeffersontown, Anchorage, Audubon Park, Lyndon, Hurstbourne, Middletown
- Website: willmanplumbing.com
Five-Generation Willman Family Plumbing Lineage Spanning 143 Years
E.J. Willman & Sons Plumbing traces its founding to 1883, when Edward J. Willman Sr. established the operation in Louisville with an initial specialization in gas piping (which was a leading-edge plumbing trade specialization in the late 19th century, when gas service was being installed across American urban housing for lighting before electricity displaced gas illumination, and gas-burning appliances and gas-fired heating systems were transitioning into standard residential infrastructure). Across the 143-year operating history, the Willman family has retained continuous ownership across five generations: Edward J. Willman Sr. (founder, 1883), Edward J. Willman Jr. (took ownership 1943), Edward J. Willman III and brother Paul F. Willman (1960; Paul retired as a master plumber), James “Mike” Willman Sr and Mark Willman (2003), and current fifth-generation owners Brooke Willman-Shreves (Mike’s daughter) and Fred Dewald. Five-generation continuity across 143 years ranks E.J. Willman & Sons among the longest-tenured family-owned plumbing operations in the United States, and the firm’s continuous Louisville presence across that span frames Kentucky-trade familiarity with how Louisville’s plumbing infrastructure evolved from gas-illumination-era urban housing through the contemporary plumbing-and-heating service environment.
West Market Street Base and Louisville Pre-War Housing Stock
The 1636 West Market Street headquarters in Old Louisville (zip 40203) sits inside one of the largest preserved Victorian-era urban historic districts in the United States. Old Louisville’s residential housing stock dates predominantly to 1870 through 1910 build-out cycles, producing a standing inventory of Italianate, Romanesque Revival, Richardsonian Romanesque, Beaux-Arts, and Queen Anne-style mansions and townhouses concentrated heavily in the South Third Street corridor, Belgravia Court, St. James Court, and Fourth Street. The plumbing systems originally installed in this housing stock predate the modern American Plumbing Code era by decades, and many of those original installations have been retrofitted across multiple cycles (gas-to-electric lighting transitions, coal-furnace-to-oil-then-gas heating transitions, lead-and-galvanized-pipe to copper-and-PEX water-supply transitions, and fixture-replacement cycles spanning 19th-century-original through contemporary). E.J. Willman’s 143-year continuous Louisville presence means the firm’s institutional knowledge spans the entire arc of these retrofit cycles, providing a depth of service-context for Old Louisville and adjacent historic-district housing that newer market entrants cannot replicate.
Kentucky Master Plumber Licensing and Continuing-Education Compliance
Kentucky regulates the plumbing trade through the Kentucky Department of Housing, Buildings and Construction (KY DHBC) Division of Plumbing, with master plumber, journeyman plumber, and apprentice plumber license tiers. The master plumber license requires examination passage, journeyman experience hours, and continuing-education renewal at established cycles, and master plumber license verification through the KY DHBC public licensee database is the standard pre-engagement diligence step Kentucky residential plumbing customers use. E.J. Willman & Sons has held continuous Kentucky master plumber licensure across multiple generations of family ownership (with successive Willman family members holding the master plumber license under each generational ownership transition), and the firm’s KY DHBC license history reflects 143 years of continuous regulatory-compliant operating presence.
BBB Accreditation and Multi-Generation Reputation Continuity
E.J. Willman & Sons holds BBB Accreditation through the Better Business Bureau Serving Louisville and Western Kentucky, with a long-running reputation track record consistent with five-generation family ownership. Reputation continuity across 143 years and five generations of one family is uncommon in the plumbing trade nationally and operates as a substantial differentiation versus newer market entrants and versus regional consolidators that have acquired previously-independent Louisville-area plumbing brands (a notable example: Tom Drexler Plumbing, founded in Louisville in 1982 by fourth-generation master plumber Tom Drexler, was acquired by Len The Plumber in April 2022. With Len The Plumber owned by Thompson Street Capital Partners private equity through Master Trades Group; E.J. Willman & Sons has remained independent across the entire span). The Willman family operating structure remains intact under fifth-generation ownership without sale to a private-equity rollup or national home-services aggregator.
Louisville Operating Geography Across Old and New Neighborhoods
E.J. Willman’s coverage area spans the full Louisville Metro residential geography: the Old Louisville Victorian-era housing stock immediately surrounding the West Market Street headquarters, the Highlands and Cherokee Triangle late-19th-century-and-early-20th-century neighborhoods, the Crescent Hill and Clifton inner-streetcar-suburb housing (built out heavily 1900 through 1925), the Germantown and Schnitzelburg working-class shotgun-house neighborhoods (a Louisville-distinctive housing typology), the Portland and Russell pre-war neighborhoods, downtown Louisville’s loft-conversion and contemporary residential housing, and the Jefferson County outer-ring suburbs (St. Matthews, Jeffersontown, Anchorage, Lyndon, Hurstbourne, Middletown). This full-Louisville-Metro service breadth aligns with the firm’s 143-year accumulated experience working across every Louisville housing-stock vintage from pre-1900 Victorian mansions through contemporary suburban single-family housing.
2. Ratterman Plumbing
- Address: 11615 Main Street, Louisville, KY 40243-1317 (primary); 511 Obyrne Avenue, Louisville, KY 40243 (secondary)
- Phone: (502) 245-2306
- Founder: Joseph A. Ratterman (founded 1933); current ownership Deanna Barker
- Operating Since: 1933 (93 years); Veteran-owned
- License: KY Master Plumber; BBB Accredited
- Service area: Louisville (Middletown, Anchorage, Lyndon, Hurstbourne, St. Matthews, Crestwood), Taylorsville, Shepherdsville, Bardstown, La Grange, Pewee Valley, Goshen, Prospect
- Website: rattermanplumbing.com
Veteran-Owned 93-Year Operating Tenure
Ratterman Plumbing was founded on January 1, 1933, by Joseph A. Ratterman, and the firm has continued as a veteran-owned local business across the 93-year operating history. Current ownership is held by Deanna Barker, and the firm operates as a Kentucky-registered corporation with primary base on Main Street in Middletown (zip 40243) and a secondary location on Obyrne Avenue. Veteran-owned status provides a recognized small-business designation that some commercial and institutional customers use as a procurement-preference qualifier, and the 93-year operating tenure spans nearly a century of Louisville-Metro residential and commercial plumbing service across multiple housing-stock and infrastructure-cycle eras.
Middletown and Eastern Jefferson County Operating Geography
The Main Street headquarters sits in Middletown, an eastern Jefferson County suburb of Louisville with a residential housing stock dominated by post-1950 single-family suburban housing alongside older pre-war housing in the Middletown historic core. The firm’s service grid extends through the eastern and southeastern Louisville Metro arc: Anchorage (one of Louisville’s most affluent residential enclaves, with substantial estate-and-large-lot housing dating 1900 through 1955), Lyndon, Hurstbourne, St. Matthews (an affluent Jefferson County suburb), Crestwood, La Grange (Oldham County), Pewee Valley (Oldham County), Goshen (Oldham County), Prospect, plus the southern arc through Taylorsville, Shepherdsville (Bullitt County), and Bardstown (Nelson County). This geographic spread covers Louisville’s eastern outer-ring suburbs and the rural-residential housing of the Bluegrass-region counties immediately surrounding Jefferson County.
KY Master Plumber Licensing and Service Mix
Ratterman Plumbing operates under Kentucky Master Plumber licensure from the KY DHBC Division of Plumbing, with service-mix coverage including new construction plumbing, plumbing repair, sewer service, gas line work, residential remodeling, and drain cleaning. The dual gas-and-plumbing service capability supports water heater installation, gas-line repair, and gas-appliance hookup work that residential customers commonly require, and the new-construction service line lets the firm work alongside general contractors on residential and small-commercial projects across the eastern Jefferson County and Bullitt County build-out cycle.
3. Southern Plumbing
- Address: 435 East Burnett Avenue, Louisville, KY 40217
- Phone: (502) 637-7445
- Founder: Joseph Ralston (founded 1947 in his garage after WWII service); second-generation owners Michael, Matt, and Robert Ralston (took over 1992 when founder Joseph Ralston passed); current Owner Matthew Ralston, President Jay Wathen
- Operating Since: 1947 (79 years); two Ralston generations
- License: KY Master Plumber #J10964 (Office of Housing, Building and Construction); BBB Accredited
- Service area: Louisville (Germantown, Schnitzelburg, Old Louisville, Highlands, Smoketown, Phoenix Hill, Shelby Park, Butchertown, downtown), Jefferson County, Oldham County, Bullitt County
- Website: southernplumbingandpiping.com
Post-WWII Founding and Two-Generation Ralston Family Lineage
Southern Plumbing was founded in 1947 by Joseph Ralston, who returned from World War II service and started the operation as a small one-man company working out of his garage. Across the 79-year operating history, the Ralston family has retained continuous ownership through two generations: founder Joseph Ralston (1947 through 1992) and his three sons Michael, Matt, and Robert (took over upon Joseph’s passing in 1992). Current ownership is held by Matthew Ralston as Owner, with Jay Wathen serving as President. The Burnett Avenue headquarters in the Schnitzelburg/Germantown/Shelby Park section of Louisville (zip 40217) roots the operation in a working-class shotgun-house neighborhood that exemplifies one of Louisville’s most distinctive residential housing typologies.
Schnitzelburg and Germantown Operating Base
The Burnett Avenue base sits in the Schnitzelburg/Germantown corridor of central-south Louisville, an area dominated by shotgun-house residential architecture (a single-room-wide, multi-room-deep housing typology that originated in New Orleans and proliferated through Louisville’s working-class neighborhoods between approximately 1880 and 1920). Shotgun-house plumbing service has its own service-mix characteristics, with cast-iron drain stacks running through the long narrow footprint of the house, galvanized supply piping, and frequent retrofit-history layers from successive generations of ownership and remodeling. Southern Plumbing’s 79-year operating tenure across this neighborhood typology gives the firm Kentucky-trade familiarity with how shotgun-house plumbing was originally assembled and what the recurring failure modes look like across the housing type.
KY Master Plumber #J10964 Compliance
Southern Plumbing operates under KY Master Plumber license #J10964 from the Kentucky Office of Housing, Building and Construction (KY DHBC), satisfying the regulatory authority required for residential and commercial plumbing work in Kentucky. The firm holds BBB Accreditation through the Better Business Bureau Serving Louisville and Western Kentucky, providing the standard credential set Louisville residential and commercial customers verify before authorizing plumbing work. The service mix includes residential plumbing service, commercial plumbing, boiler replacement (a service category that requires additional credentialing under Kentucky’s boiler-contractor regulations and reflects the firm’s commercial-plumbing operating capacity), and the standard repair-and-installation service categories.
4. Maupin Plumbing
- Address: 4735 Poplar Level Road, Suite 2, Louisville, KY 40213
- Phone: (502) 451-0277
- Founder: Thomas E. Maupin (founder-operator; KY Master Plumber)
- Operating Since: 40+ years founder-operator continuity under Thomas E. Maupin
- License: KY Master Plumber; KY Boiler Contractor License; IN Plumbing License (Indiana cross-state authority); BBB Accredited
- Service area: Louisville (Poplar Level corridor, Audubon Park, Camp Taylor, Highlands, St. Matthews, Lyndon, Hurstbourne, Jeffersontown, Buechel, Fairdale), Jefferson County, southern Indiana (New Albany, Jeffersonville, Clarksville, Floyds Knobs, Corydon)
- Website: maupinplumbing.com
Founder-Operator Continuity Under Thomas E. Maupin
Maupin Plumbing has operated for more than 40 years as a founder-operator firm under Thomas E. Maupin, who serves as President and Owner and holds the active KY Master Plumber credential under which the firm operates. Founder-operator continuity at this duration is operationally meaningful because it indicates the senior decision-maker on the business has direct field experience with Louisville-area plumbing infrastructure across multiple decades, rather than executive-level management imported after an acquisition. The Poplar Level Road headquarters in Louisville (zip 40213) supports a service base that extends across Louisville Metro and into southern Indiana through the Maupin family’s cross-state Indiana plumbing license authority.
Cross-State KY-IN Operating Authority
Maupin Plumbing’s credential portfolio includes both Kentucky Master Plumber licensure and Indiana Plumbing License authority, supporting service work across the Louisville Metro proper and the Indiana-side counties immediately across the Ohio River (Floyd County, Clark County, Harrison County). New Albany, Jeffersonville, Clarksville, Floyds Knobs, and Corydon are Indiana-side communities that fall within the Louisville commuter shed and where many residents work in Louisville while living in Indiana, generating substantial cross-state residential plumbing service demand. The Indiana cross-state license authority distinguishes Maupin Plumbing from Kentucky-only Louisville plumbing operators and aligns with the Louisville-Metro reality that the urban area straddles a state border.
KY Boiler Contractor Licensing and Service-Mix Breadth
Beyond the standard Master Plumber credential, Thomas E. Maupin holds a Kentucky Boiler Contractor License, which provides the regulatory authority for boiler installation, boiler service, and boiler-piping repair work that Kentucky’s boiler-contractor regulations require. Boiler-contractor licensing is a separate credential tier from master plumber licensing in Kentucky, and the dual master-plumber-plus-boiler-contractor credential set lets Maupin Plumbing serve both the standard residential plumbing service mix and the boiler-equipped housing stock common in older Louisville neighborhoods (steam-and-radiator boiler systems remain in service across substantial portions of the pre-1950 Louisville housing stock).
Reference Notes
Louisville’s residential plumbing market reflects three operating realities that drive how local plumbing firms compete. The first is housing-stock vintage and Old Louisville’s preserved Victorian historic district: Louisville contains one of the largest preserved Victorian-era urban historic districts in the United States in Old Louisville (concentrated south of downtown along South Third Street, St. James Court, Belgravia Court, and the Fourth Street corridor), with residential housing stock dating predominantly to 1870 through 1910 build-out cycles and Italianate, Romanesque Revival, Richardsonian Romanesque, Beaux-Arts, and Queen Anne-style mansions and townhouses. Beyond Old Louisville, the Highlands, Crescent Hill, Cherokee Triangle, Clifton, Germantown, Schnitzelburg, Portland, Russell, Smoketown, Phoenix Hill, Butchertown, Shelby Park, and NuLu neighborhoods all contain pre-1925 residential housing stock with original cast-iron drain systems, galvanized supply piping, and frequent retrofit-history layers. The shotgun-house architectural typology common in Schnitzelburg, Germantown, and Portland generates its own service-mix characteristics distinct from the more typical American single-family housing typology. The second structural condition is licensing depth: Kentucky regulates the plumbing trade through the Kentucky Department of Housing, Buildings and Construction (KY DHBC) Division of Plumbing, with master plumber, journeyman plumber, and apprentice plumber license tiers, and the KY DHBC public licensee database is the standard pre-engagement diligence verification step Louisville residential customers use. The Kentucky boiler contractor licensing tier provides an additional credential layer for operators serving the steam-and-radiator boiler housing stock common in older Louisville neighborhoods. Indiana-side cross-state licensing matters for the Louisville Metro because the metro area straddles the Ohio River into Floyd, Clark, and Harrison Counties in Indiana. The third structural condition is national rollup activity: the Louisville plumbing trade has experienced substantial consolidation pressure, with Tom Drexler Plumbing (founded 1982 in Louisville by fourth-generation master plumber Tom Drexler) acquired by Len The Plumber in April 2022 (Len The Plumber is owned by Thompson Street Capital Partners private equity through Master Trades Group, headquartered in Columbia, Maryland), Authority Brands operating Benjamin Franklin Plumbing franchise locations across the Louisville metro, and Mr. Rooter Plumbing operating as a Neighborly franchise system across the region; the four Louisville firms profiled here all operate as locally-owned independent shops outside the consolidator pattern, with five-generation family ownership (Willman 1883 across five Willman generations), 93-year veteran-owned operating tenure (Ratterman 1933), two-generation post-WWII Ralston family ownership (Southern Plumbing 1947), and 40+ year founder-operator continuity (Maupin under Thomas E. Maupin).
Tenure profiles across the four firms vary across a 100-year span, and the ranking aligns with both formal corporate founding dates and family-trade lineage continuity. E.J. Willman & Sons Plumbing leads on the longest tenure dimension by a substantial margin, with an 1883 founding date and five continuous Willman family generations spanning Edward J. Willman Sr. (founder), Edward J. Willman Jr. (1943), Edward J. Willman III and Paul F. Willman (1960), James “Mike” Willman Sr and Mark Willman (2003), and current fifth-generation owners Brooke Willman-Shreves and Fred Dewald. The 143-year operating tenure ranks Willman among the longest-tenured family-owned plumbing operations in the United States, and the West Market Street base in Old Louisville grounds continuous presence in one of the largest preserved Victorian-era urban historic districts in the country across the entire span. Ratterman Plumbing follows on the second-longest tenure dimension, with a January 1, 1933 founding under Joseph A. Ratterman and a 93-year veteran-owned operating tenure now under owner Deanna Barker, supported by a Main Street base in Middletown (eastern Jefferson County). Southern Plumbing’s two-generation Ralston family lineage since 1947 (founder Joseph Ralston post-WWII, sons Michael, Matt, and Robert taking over 1992, current owner Matthew Ralston with Jay Wathen as President) and KY Master Plumber #J10964 ground a Burnett Avenue base in the Schnitzelburg/Germantown shotgun-house neighborhood typology that defines one of Louisville’s most distinctive residential housing types. Maupin Plumbing’s 40+ year founder-operator continuity under Thomas E. Maupin and KY Master Plumber plus KY Boiler Contractor plus Indiana cross-state license combination supports a service mix that extends across the Ohio River into the Indiana-side Louisville Metro counties. The credential portfolios scale with operating depth: Willman’s five-generation Kentucky Master Plumber licensure history, Southern Plumbing’s KY Master Plumber #J10964 plus boiler-replacement service capability, Ratterman’s KY Master Plumber plus veteran-owned designation, and Maupin’s KY Master Plumber plus KY Boiler Contractor plus IN Plumbing License combination together provide the four-firm comparison framework that Louisville-Metro residential customers use to select between long-tenured independent local operators outside the has acquired multiple Louisville-area firms across recent years..
Selection Methodology
Selection follows four criteria. First, continuous family ownership or founder-operator continuity outside the national rollup pattern. Second, verifiable KY Master Plumber license cross-checked via the Kentucky Department of Housing, Buildings and Construction (DHBC) public lookup. Third, BBB Accreditation or equivalent third-party rating. Fourth, minimum 10-year continuous operating tenure with documented Louisville, KY service coverage. Firms acquired by national franchise networks (Authority Brands’ Benjamin Franklin Plumbing, Neighborly’s Mr. Rooter, Service Experts, Roto-Rooter, Wrench Group, Redwood Services, Master Trades Group, ARS) are excluded.
Frequently Asked Questions
How do I verify a Louisville, KY plumber’s license?
Use the Kentucky Department of Housing, Buildings and Construction (DHBC) public licensee database at dhbc.ky.gov. Search by license number or business name. Confirm active status, classification, bonding, and insurance before authorizing work.
What credentials should a Louisville, KY plumber hold?
At minimum: KY Master Plumber credential plus general liability insurance and workers’ compensation coverage. Specialty work (gas line, backflow prevention, fire sprinkler, sewer lateral) requires additional credential layers.
How can I tell if a Louisville, KY plumber is locally owned versus a national rollup?
Check ownership disclosures and acquisition history. National franchise brands typically operate under parent-company branding. Search the firm name plus “acquired” or “parent company” to surface ownership structure. The four firms in this directory all run as independent locally-owned operators.
When should I call an emergency plumber in Louisville?
Burst pipes, sewer backups, gas leaks, no-water events, and water heater failures justify after-hours dispatch. Each firm in this directory offers either 24/7 emergency service or structured after-hours response.
Editorial Note
Compiled by the editorial team. Firm details cross-verified through state license databases, BBB business profiles, and firm-published websites where available. License numbers should be re-verified through the Kentucky Department of Housing, Buildings and Construction (DHBC) public lookup before authorizing work. Information current as of the date below; firm details may change without notice. Last updated: 2026-05-10.