Business Details
50+ Years
experience
Emergency
services
Trusted Green Bay Plumbing & Heating Experts
Established in 1967 by Raphael J. Parins, our company has built a legacy of excellence in residential, commercial, and industrial plumbing services across Green Bay and surrounding areas. We prioritize treating every project as if it were our own, ensuring quality craftsmanship delivered efficiently while respecting client budgets. Our team of licensed and insured professionals brings decades of combined experience, specializing in critical areas like medical gas installation, cross connection testing, and emergency repairs. With a commitment to continuous improvement, we utilize top-tier industry brands and maintain certifications that reflect our technical expertise.Our family-owned ethos drives personalized service, fostering long-term relationships with property managers, businesses, and homeowners who rely on our dependable solutions. Transparency remains central to our operations, with clear communication throughout every project phase. This dedication to integrity and performance has earned us consistent recognition as Green Bay's premier plumbing provider through multiple generations of service.
Services
Residential Plumbing
Commercial Plumbing
Industrial Plumbing
Water Heater Repair
Medical Gas Installation
Cross Connection Testing
Sump Pump Services
Grease Trap Maintenance
Boiler Installation
Remodeling Plumbing
Details
- Year established: 1967
Highlights and features
- Family-owned since 1967 with generational plumbing expertise
- Licensed and insured professionals for all project types
- Specialized certifications in medical gas and cross connection systems
- Proven track record with 200+ rental unit management clients
- Prompt response times for urgent plumbing needs
What people say
Great work
Prompt scheduling
Professional manner
High standard
Trustworthy company
Services
Residential Plumbing
Comprehensive residential solutions address repairs, installations, and maintenance for kitchens, bathrooms, and whole-home systems. Our licensed technicians handle emergency leaks, water heater replacements, and fixture upgrades while minimizing disruption to homeowners. With 50+ years serving local residences, we combine generational expertise with modern techniques to ensure lasting results.
Commercial Plumbing
Tailored services maintain operational continuity for businesses through preventive maintenance and urgent repairs. We specialize in complex systems for multi-unit buildings, industrial facilities, and medical offices requiring specialized gas piping. Our team works after-hours when needed to avoid business interruptions while meeting strict code compliance standards.
Water Heater Repair
Expert diagnosis and repair of all water heating systems, including tankless, gas, and electric models. We offer same-day service for complete failures and perform annual maintenance to extend equipment lifespan. Our technicians install energy-efficient models from trusted brands while ensuring proper venting and safety valve functionality.
Medical Gas Installation
Precision installation and certification of medical gas systems in healthcare facilities. Our certified specialists follow NFPA 99 standards for oxygen, vacuum, and specialty gas lines. We provide regular inspections, emergency repairs, and documentation required for regulatory compliance in hospitals, clinics, and dental offices.
Cross Connection Testing
State-certified testing and maintenance of backflow prevention assemblies to protect water supplies. We service residential, commercial, and industrial properties, providing required annual certifications to local municipalities. Our team identifies contamination risks and installs appropriate prevention devices meeting Wisconsin plumbing code requirements.
People
Raphael Parins
Founder
Founded the company in 1967 after starting his plumbing career in 1956. Provided expert estimates using 54 years of industry experience until his passing in 2021.
Jeff Mertz
Owner & CEO
Master plumber since 1996 who acquired the business after apprenticeship. Specializes in medical gas systems and cross connection testing while managing project design.
Jessica Dollar
CFO
CFO since 2005 with administrative expertise. Balances financial responsibilities while maintaining family connection as Raphael Parins' granddaughter.
Cory
Master Plumber
COO with cross connection and medical gas certifications. Oversees technical operations and quality control for complex installations since joining in 2016.
Jeff S.
Master Plumber
Residential service specialist with 25+ years experience. Provides expert problem-solving for home plumbing systems and emergency repairs.
Questions
What areas do you service?
We primarily serve Green Bay and surrounding Northeast Wisconsin communities for residential, commercial, and industrial plumbing needs.
Do you handle emergency plumbing repairs?
Yes, we provide urgent repair services for critical issues like leaks, burst pipes, and water heater failures during business hours.
Are your plumbers certified?
All technicians are licensed, insured, and maintain specialized certifications including medical gas installation and cross connection testing.
What commercial services do you offer?
We provide preventive maintenance, system upgrades, and emergency repairs for businesses including multi-unit buildings and healthcare facilities.
How can I schedule service?
Contact us via phone at (920) 494-9159 during business hours or request a callback through our website for prompt scheduling.
Reviews (4)
Carter Jacobson
May 22, 2022
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I use RJ Parins very regularly for the 200+ rental units I manage with Northern Management. They do great work, and the tenants always compliment the employees they send out for the jobs.
Colleen Thompson
Oct 16, 2021
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Critical: Responsiveness Technican came to give us a quote on replacing our walk-in shower. He looked at it for about 2 minutes & the next 15 minutes all he talked about was who lived in our neighborhoid & if we knew this person or that person! Never called back with a quote or if they could do it or not. Don't waste your time with these guys!
Stu Alexander Stu D. Bakre
Nov 13, 2019
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DO NOT HIRE (hired 2 years ago) Installed plumbing wrong (failed basic inspections, didn't install valves in places we asked for), replaced not required or requested items, made us remove a wall, part of a ceiling, and a floor for a project that didn't need that much removed, blew up main water intake for which we had to pay another company $5000 to repair it (they claim it was our fault cause pipe was older), and charged us double the quoted price.
They will ill not answer calls or multiple emails about many problems. (Attached is the picture of the failed connection to a water heater {needs 18 inches of clearance} which we will start to be fined for soon unless they fix or we hire a new plumber) DO NOT HIRE
They will ill not answer calls or multiple emails about many problems. (Attached is the picture of the failed connection to a water heater {needs 18 inches of clearance} which we will start to be fined for soon unless they fix or we hire a new plumber) DO NOT HIRE
Danielle Stockinger
Nov 14, 2017
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Quoted me one price, then charged another. Forgot to show up once. Broke my material and never replaced it. They are liars, stay away.
