Business Details
18 Years
experience
Emergency
services
Your Trusted Houston Plumbing Partner Since 2008
Mammoth Plumbing has been serving Houston homeowners since 2008 with a commitment to exceptional service and quality craftsmanship. Founded by industry veteran Jon Nevarez, our team combines extensive experience with factory-trained technicians to deliver reliable solutions for residential plumbing needs. As a BBB A+ accredited business with a 4.6-Star Google rating, we prioritize transparency, customer education, and satisfaction guarantees.Our services are backed by industry-leading warranties on parts and labor, and we maintain deep community roots as a family-owned operation. With over 25 years of combined experience, we specialize in emergency response, complex repairs, and system replacements while maintaining punctuality and clear communication.
Services
Drain Cleaning
Emergency Plumbing
Water Heater Repair
Sewer Line Repair
Slab Leak Detection
Home Repiping
Fixture Installation
Water Filtration Systems
Details
- Year established: 2008
Highlights and features
- Pride in Our Craftsmanship: Ensuring precision and attention to detail in every project
- Honest, Reliable, & Educational: Transparent communication with client education
- Satisfaction Guaranteed: Backed by industry-leading warranties and guarantees
- Local Family-Owned Business: Deep community roots and personalized service
- Licensed, Insured, & Bonded: Over 25 years of combined experience with certified technicians
Associations and certifications
- Better Business Bureau (BBB)
What people say
Honest and well priced
Prompt and professional
Accurate diagnosis
No hidden charges
Outstanding warranty
Services
Emergency Plumbing
Our certified technicians provide immediate response for urgent plumbing issues including burst pipes, severe leaks, and system failures. With 24/7 availability and average response times under 2 hours, we utilize advanced diagnostic tools to quickly resolve emergencies while minimizing property damage. Customers consistently praise our punctuality and transparent communication during critical situations.
Water Heater Repair
Specializing in both traditional tank and tankless water heater solutions, our team offers comprehensive repair, maintenance, and replacement services. We diagnose issues like sediment buildup, thermostat malfunctions, and heating element failures using specialized equipment. With expertise in major brands including Rinnai, we guarantee lasting solutions and energy-efficient upgrades that reduce long-term operating costs for homeowners.
Slab Leak Repair
Our advanced leak detection technology precisely identifies sub-slab water leaks without destructive excavation. Using thermal imaging and acoustic listening devices, we pinpoint hidden leaks in concrete foundations and implement durable repair solutions. This specialized service prevents structural damage and moisture-related issues while maintaining our industry-leading warranties on both parts and labor.
Drain Cleaning
Combining traditional methods with modern technology, we offer complete drain and sewer line cleaning services. Our high-pressure jetting equipment effectively removes clogs, tree root intrusions, and buildup in residential piping systems. With same-day service availability and preventive maintenance options, we help homeowners maintain optimal drainage performance and avoid recurring blockage issues.
Home Repiping
We specialize in full-home repiping solutions for aging or damaged plumbing systems. Using durable materials like PEX and copper, our licensed technicians replace outdated pipes with minimal disruption to property. This comprehensive service improves water pressure, eliminates leaks, and enhances system efficiency while maintaining strict compliance with local building codes and regulations.
People
Jon Nevarez
Owner & Founder
With over 25 years in the plumbing industry, Jon established Mammoth Plumbing in 2008 to provide honest, reliable service to Houston homeowners. His hands-on leadership and commitment to quality have earned the company BBB A+ accreditation and a 4.6-Star Google rating.
John Jr
Senior Technician
Specializing in emergency repairs, John Jr delivers rapid response for critical plumbing issues. His expertise in urgent leak detection and system restoration has earned consistent praise for prompt, quality service during high-pressure situations.
Ron
Water Heater Specialist
Certified in advanced water heating systems, Ron provides expert diagnostics and solutions for tankless and traditional water heaters. His technical proficiency and customer-focused approach ensure lasting repairs and energy-efficient upgrades for residential clients.
Michael
Service Technician
Recognized for quick problem resolution, Michael specializes in system diagnostics and immediate repair solutions. His ability to efficiently address complex issues like water heater malfunctions has earned multiple customer commendations for technical skill and service excellence.
Jimmy
Drain Specialist
With expertise in drain line diagnostics, Jimmy utilizes advanced camera technology to identify and resolve blockages. His thorough approach to drain cleaning and maintenance prevents recurring issues while ensuring optimal system performance for residential properties.
Questions
What plumbing services do you offer in Houston?
We provide comprehensive residential plumbing services including emergency repairs, water heater solutions, drain cleaning, slab leak detection, sewer line repair, and home repiping across the Houston Metro area.
Are your plumbers available for emergencies?
Yes, our certified technicians offer 24/7 emergency service with average response times under 2 hours for urgent plumbing issues like burst pipes and severe leaks.
Do you provide service warranties?
All our work is backed by industry-leading warranties covering both parts and labor, ensuring long-term reliability and customer peace of mind.
How quickly can you schedule service?
We offer same-day appointments for emergency situations and typically provide 2-hour service windows for scheduled visits, with technicians arriving as promised.
Are your technicians licensed and insured?
Yes, our team consists of licensed, insured, and bonded professionals with factory training in modern plumbing technologies and repair methods.
What areas do you service?
We serve Houston and surrounding communities including Kingwood, The Woodlands, Katy, Sugar Land, and Baytown, with service available to all listed areas and beyond.
Reviews (7)
Allie G.
Jan 22, 2020
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We've really liked working with Mammoth Plumbing over the past couple of years. They are always very respectful and do a great job - particularly, Ron! Typically, they can get out to see you in a reasonable turnaround time for more urgent matters. They helped fix two of our sinks that were having issues with leaking, installed a new faucet for us, as well as a new water heater. We trust them and they are our go-to people for any plumbing needs. Highly recommend!
Hai P.
Mar 28, 2019
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My go-to for plumbing work. Ron has always taken care of me. Up front with cost and stands behind their repairs.
Tanner Rokohl
Dec 30, 2018
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There techs. Drive like they just left the drag strip and love to drive 90 mph on the freeway and if you are not doing the same they ride ur bumper and almost hit you.. please do youself a favor and not hire these people. If they can not follow the law, what makes you think they will inside your home with all your personal belongings laying around I would post the pictures i took one of there drivers but it won't let me... There are plenty of other plumbing company's around that respect the laws-posted speed limits
Suresh Mullangi
Aug 24, 2018
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We had tankless water heater installed an year ago. They did a good job with installation and gave us two year warranty and told us to call them for any repairs including warranty calls. After one year we had an issues and they came by to fix it by working with Rinnai. After second visit it is not completed and they called and told us they can no longer help, good luck!! Really, in the middle of a service call??? I had to work with another authorized repair company to fix the issue. Very disappointing to see how they handled the event.
Elizabeth M.
Jul 14, 2018
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Didn't end up using them but they did advise me there was a 150-250 charge for after hours or weekend I ended up going elsewhere and was charged less than that for the repair!
Max M.
Jul 04, 2018
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I had a couple of different things that needed attention which brought me to call Mammoth plumbing. My tankless hot water heater kept shutting off due to a bad install by another plumbing company who specializes in re-piping. The manufacture's website only listed two authorized repair centers and the other place was giving me the run-around so I called Mammoth plumbing even though they were further from the house.
Ron came out and had me up and running in no time, turns out the tankless hot water heater was not even close to being installed correctly. It sure was nice to have endless hot
Ron came out and had me up and running in no time, turns out the tankless hot water heater was not even close to being installed correctly. It sure was nice to have endless hot
Vijet Chuon
Aug 18, 2017
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Mammoth is the best when it comes to Rinnai tankless water heaters. Ron was on time, professional, and brutally honest about issue. He was able to troubleshoot and found the root cause of why my water heater was acting up. Definitely will use them again and please give Ron some recognition!
