Earning Your Trust Since 1918
Your Trusted Partner for Comprehensive Plumbing Solutions in the Oshkosh Area
J. Cox Plumbing stands out as a reliable plumbing service provider in the Oshkosh, WI area. We take pride in delivering exceptional customer service, meticulous workmanship, and unwavering dedication to your satisfaction.
Experienced & Certified Master Plumbers
Our team comprises state-licensed and insured master plumbers who are certified to handle a wide range of plumbing issues with expertise. We combine experience with innovative technology and a strong understanding of contemporary plumbing practices to offer reliable solutions.
Comprehensive Services at Your Service
We offer a comprehensive array of services to cater to all your plumbing needs, including:
Water Quality Services
- Comprehensive water quality testing and analysis to ensure safe and healthy water.
- Effective solutions to address water quality issues like hardness, contaminants, and bacteria.
Water Heater Services
- Installation, repair, and maintenance of both traditional and tankless water heaters.
- Expertise in gas, electric, and solar-powered water heating systems.
Plumbing Service & Repair
- Expert repair of all types of leaks, from minor drips to catastrophic breaks.
- Comprehensive inspection and diagnosis services to identify potential problems.
- Efficient and reliable repairs delivered by skilled technicians.
Home Improvement Services
- Kitchen remodeling and design to create your dream kitchen.
- Bathroom remodeling to enhance functionality and aesthetics.
- New construction plumbing installations, ensuring a solid foundation for your new home.
Why Choose J. Cox Plumbing?
- Experience and Expertise: Decades of experience and certified plumbers for reliable solutions.
- Exceptional Communication: We believe in clear and open communication with our customers.
- Customer Focus: Your satisfaction is our priority.
- Competitive Pricing: Affordable services without compromising quality.
- Lifetime Workmanship Warranty: We stand by our work with a guarantee of excellence.
Partner with J. Cox Plumbing for reliable, efficient, and professional plumbing services in the Oshkosh area. Contact us today to request a free local estimate!
Exceptional Customer Service
The reviews of J. Cox Plumbing are overwhelmingly positive, with customers praising the company's exceptional customer service, professionalism, and work quality. Customers rave about the promptness, efficiency, and friendliness of the plumbers, as well as their willingness to go the extra mile to ensure customer satisfaction.
Communication and Work Quality
Reviewers highlight the importance of clear communication and transparent pricing. Justin and his team take the time to explain everything clearly, answer questions, and provide detailed estimates. The work is consistently of high quality, completed in a timely manner, and at a reasonable price.
Fair Pricing and Value
Customers appreciate that J. Cox Plumbing offers fair prices, competitive bids, and a great value for the quality of work provided. The company is reliable, and reviewers trust them to get the job done right the first time.

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