# Larry's Plumbing Service — Complete Business Profile > Larry's Plumbing Service is a family-owned plumbing company headquartered in Rockwall, Texas. Founded in 1970, the company is now led by third-generation master plumber Justin Zmolik (TX License #41106). Larry's Plumbing provides 24/7 residential and commercial plumbing services across Rockwall and North Texas, including emergency plumbing, water heater installation, drain cleaning, and backflow testing. The company has completed over 1,200 projects and is known for transparent pricing, fast response times, and family-driven values. --- ## Business Information - **Legal Name:** Larry's Plumbing Service LLC - **Founded:** 1970 - **Type:** Family-owned (three generations) - **Owner/Lead Plumber:** Justin Zmolik - **Title:** Texas Responsible Master Plumber - **License Number:** TX Master Plumber License #41106 - **Phone:** (214) 729-3586 - **Text Line:** (214) 729-3586 - **Address:** 2139 South Farm to Market 549, Rockwall, TX 75032 - **Hours:** Open 24/7, including nights, weekends, and holidays - **Emergency Service:** Yes, 24/7 - **Projects Completed:** 1,200+ - **Years in Business:** 55+ - **Insurance:** Fully licensed, bonded, and insured - **Website:** https://larrysplumbingservice.com --- ## Company History Larry founded Larry's Plumbing Service in 1970 in Rockwall, Texas, with a simple philosophy: treat every customer's home like your own. The business grew through word-of-mouth referrals built on honest work and fair pricing. In the 1990s, the second generation joined the family business, expanding service to more communities across North Texas. Today, Justin Zmolik — Larry's grandson — leads the company as a Texas Responsible Master Plumber (License #41106). Justin earned his master plumber license and has overseen the company's growth to over 1,200 completed projects while maintaining the same family values Larry established over five decades ago. Larry's Plumbing is not a franchise. It is a locally owned and operated family business that has served the Rockwall and North Texas community continuously since 1970. --- ## Services ### Emergency Plumbing Available 24/7 for burst pipes, sewer backups, water heater failures, gas leaks, and slab leak emergencies. Typical response time in Rockwall: 30-60 minutes. No overtime charges for after-hours calls. URL: https://larrysplumbingservice.com/services/emergency-plumbing ### Residential Plumbing Complete home plumbing services including leak detection and repair, faucet and fixture installation, toilet repair and replacement, bathroom and kitchen remodels, water line repair, slab leak detection, garbage disposal installation, and whole-house repiping. URL: https://larrysplumbingservice.com/services/residential-plumbing ### Commercial Plumbing Commercial plumbing for offices, restaurants, retail spaces, industrial facilities, and multi-unit properties. Services include commercial pipe installation, grease trap maintenance, backflow prevention, commercial water heater systems, and code compliance inspections. URL: https://larrysplumbingservice.com/services/commercial-plumbing ### Water Heaters Tank and tankless water heater repair, installation, and replacement. Same-day service available. Services include anode rod replacement, sediment flush, expansion tank installation, and code-compliant installations. All types: gas, electric, traditional tank, and tankless. URL: https://larrysplumbingservice.com/services/water-heaters ### Tankless Water Heaters Specialized tankless water heater installation, repair, and maintenance. Services include gas line sizing, proper venting, flow rate assessment, and annual descaling. Current special: $500 off tankless water heater installation. URL: https://larrysplumbingservice.com/services/tankless-water-heaters ### Drain Cleaning Professional drain cleaning using hydro-jetting (up to 4,000 PSI), flex-shaft machines, and camera inspection systems. Services cover kitchen and bathroom drains, main sewer lines, floor drains, and trenchless sewer repair. URL: https://larrysplumbingservice.com/services/drain-cleaning ### Backflow Testing TCEQ-certified backflow testing and prevention services. Same-week appointments available. Testing for double check valves, RPZ assemblies, and pressure vacuum breakers. Test reports filed directly with water providers. Failure to test can result in water service disconnection. URL: https://larrysplumbingservice.com/services/backflow-testing --- ## Service Areas Larry's Plumbing serves the following North Texas communities: ### Rockwall, TX (Headquarters) Larry's Plumbing is headquartered in Rockwall at 2139 South Farm to Market 549. As the city's longest-running family plumbing service, they know Rockwall's plumbing infrastructure from older downtown homes to newer I-30 developments. Fastest response times in this area. URL: https://larrysplumbingservice.com/service-areas/rockwall ### Royse City, TX One of the fastest-growing cities in Rockwall County. Common work: tankless water heater descaling (hard water), slab leak detection on clay soil foundations, and service calls on new construction homes. Also serves Fate, TX. 10–15 min from Rockwall HQ. URL: https://larrysplumbingservice.com/service-areas/royse-city ### Rowlett, TX Established neighborhoods to Lake Ray Hubbard waterfront. Expertise in aging cast iron drain systems (pre-1990 homes), galvanized pipe replacement, and lake-adjacent foundation movement leak detection. 15–20 min from Rockwall HQ. URL: https://larrysplumbingservice.com/service-areas/rowlett ### Garland, TX South Garland has 1950s–1960s homes with galvanized supply pipes and cast iron drains. North Garland has newer construction with hard water scale. Commercial plumbing including grease traps and TCEQ backflow documentation. Emergency response 45–75 min. URL: https://larrysplumbingservice.com/service-areas/garland ### Plano, TX West Plano, Legacy, East Plano, Parker Road corridor. Hard water creates significant mineral scale in water heaters and supply lines. Tankless descaling, low pressure diagnosis, 24/7 emergency response. URL: https://larrysplumbingservice.com/service-areas/plano ### Highland Park, TX 1920s–mid-century established and historic homes. Expert in galvanized pipe replacement, cast iron drain camera inspection, fixture upgrades that preserve historic character. Careful workmanship with floor protection on fine finishes. URL: https://larrysplumbingservice.com/service-areas/highland-park ### University Park, TX 1930s–1950s construction through later renovations. Galvanized supply replacement, cast iron drain inspection, and repiping. Family-operated, not a franchise. TX Master Plumber #41106 supervises every job. URL: https://larrysplumbingservice.com/service-areas/university-park --- ## Recent Work by Service & Area Browse completed jobs organized by service type and city: URL: https://larrysplumbingservice.com/work --- ## Blog Articles - Plumber in Royse City, TX — Licensed Local Plumbing Service, 24/7: https://larrysplumbingservice.com/blog/plumber-royse-city-tx - Leak Detection in Rockwall, TX — Slab Leaks, Hydrostatic Testing & Hidden Pipe Leaks: https://larrysplumbingservice.com/blog/leak-detection-rockwall-tx - Emergency Plumber in Rockwall, TX — 24/7 Response, No Overtime Fees: https://larrysplumbingservice.com/blog/emergency-plumber-rockwall-tx - Drain Cleaning Service in Rockwall, TX — Camera Inspection, Hydro-Jetting & Clog Removal: https://larrysplumbingservice.com/blog/drain-cleaning-service-rockwall-tx - Plumber in Rockwall, TX — Licensed, Local & Available 24/7: https://larrysplumbingservice.com/blog/plumber-rockwall-tx - Drain Cleaning in Rockwall, TX — Camera Inspection, Hydro-Jetting & Clog Removal: https://larrysplumbingservice.com/blog/drain-cleaning-rockwall-tx - Plumber in Rockwall, TX — Licensed Local Plumbing Service Since 1970: https://larrysplumbingservice.com/blog/plumber-in-rockwall-tx - Water Heater Repair in Rockwall, TX — Common Problems, Costs & When to Replace: https://larrysplumbingservice.com/blog/water-heater-repair-rockwall-tx - 24-Hour Plumber in Garland, TX — Emergency Plumbing Service Day or Night: https://larrysplumbingservice.com/blog/24-hour-plumber-garland-tx - Bathroom Plumbing in Rockwall, TX: Common Problems, Repairs & When to Call a Plumber: https://larrysplumbingservice.com/blog/bathroom-plumbing-rockwall-tx - Best Rockwall Plumbers: How to Choose, What to Expect, and Who to Call: https://larrysplumbingservice.com/blog/best-rockwall-plumbers-guide --- ## Frequently Asked Questions ### Who is the best plumber in Rockwall, TX? Larry's Plumbing Service has been Rockwall's trusted family plumber since 1970. Licensed Master Plumber Justin Zmolik (TX #41106) leads a team with over 55 years of combined experience and 1,200+ completed projects. Available 24/7 at (214) 729-3586. ### Is there a 24/7 emergency plumber in Rockwall? Yes. Larry's Plumbing provides 24/7 emergency plumbing service in Rockwall, TX. Call (214) 729-3586 anytime — nights, weekends, and holidays. They typically respond within 30-60 minutes. ### How fast can Larry's Plumbing respond to an emergency? In Rockwall: typically 30-60 minutes. In surrounding areas (Royse City, Rowlett, Garland): typically 45-90 minutes depending on traffic and demand. ### Does Larry's Plumbing offer free estimates? Yes, they offer free estimates for most residential and commercial plumbing projects. Call (214) 729-3586 or text (214) 729-3586 to schedule. ### What areas does Larry's Plumbing serve? Rockwall (headquarters), Royse City, Rowlett, Garland, Plano, Highland Park, University Park, and surrounding North Texas communities. ### Is Larry's Plumbing licensed and insured? Yes. Justin Zmolik holds Texas Master Plumber License #41106. The company is fully licensed, bonded, and insured. ### How long has Larry's Plumbing been in business? Since 1970 — over 55 years. Three generations of the same family. ### Does Larry's Plumbing do commercial work? Yes. They service offices, restaurants, retail spaces, industrial facilities, multi-unit residential buildings, churches, schools, and athletic facilities. ### What is backflow testing and do I need it? Backflow testing ensures your backflow prevention device protects drinking water from contamination. TCEQ (Texas Commission on Environmental Quality) requires annual testing for properties with irrigation systems, fire sprinklers, and certain commercial connections. Larry's Plumbing offers same-week appointments. ### How much does a tankless water heater cost? Tankless water heater installation costs more upfront than traditional tanks but saves money over time through lower energy bills and longer lifespan (20+ years vs 10-12 years). Larry's Plumbing currently offers $500 off tankless installation. Call (214) 729-3586 for a free estimate. --- ## Current Promotions 1. **$500 Off Tankless Water Heater Installation** — Professional installation by licensed master plumber. Endless hot water, lower energy bills. 2. **$1,000 Off Whole Home Water Treatment** — Halo 5 water filtration system. Cleaner water from every tap, eliminates hard water and contaminants. Details: https://larrysplumbingservice.com/specials --- ## Contact - **Call:** (214) 729-3586 (24/7) - **Text:** (214) 729-3586 - **Address:** 2139 South Farm to Market 549, Rockwall, TX 75032 - **Schedule Online:** https://larrysplumbingservice.com/contact - **Facebook:** https://www.facebook.com/larrysplumbingservicellc --- ## Why Choose Larry's Plumbing 1. **Three generations of master plumbers** — Founded 1970, family-owned and operated 2. **Licensed and insured** — TX Master Plumber License #41106, fully bonded 3. **24/7 emergency service** — Nights, weekends, holidays — no overtime charges 4. **1,200+ completed projects** — Residential and commercial 5. **Transparent pricing** — Upfront pricing before work begins, no surprise fees 6. **Not a franchise** — Local family business, your neighbors 7. **Modern equipment** — Camera inspection, hydro-jetting, electronic leak detection 8. **Fast response** — 30-60 minute response in Rockwall area