Professional Plumbing and Tankless Water Heater Services Built to Last

4M Plumbing provides reliable tankless water heater installation and plumbing services for families throughout San Antonio, including Stone Oak. Our team helps ensure your multiple-bathroom home has consistent hot water and dependable plumbing repairs. You gain peace of mind knowing your plumbing is built for reliable performance every day.

Professional Plumbing and Tankless Water Heater Services Built to Last

37+ Years of Experience

Fix It Right the First Time

Fast Response Times

Workmanship Warranties

4M Plumbing provides reliable tankless water heater installation and plumbing services for families throughout San Antonio, including Stone Oak. Our team helps ensure your multiple-bathroom home has consistent hot water and dependable plumbing repairs. You gain peace of mind knowing your plumbing is built for reliable performance every day.

37+ Years of Experience

Fix It Right the First Time

Fast Response Times

Workmanship Warranties

TRUSTED PLUMBING EXPERTS IN SAN ANTONIO

$500 Off Water Heater Replacement Or $75 Off Any General Plumbing Service

100% Privacy Guaranteed

4M Plumbing brings more than 37 years of experience, fast response times, and workmanship warranties to homeowners throughout San Antonio, including Stone Oak. We are a family-owned company committed to honest, lasting repairs for larger households and homes with multiple bathrooms.

Why Choose Us — San Antonio Plumbing & Water Heating (Unbounce Section, Boxed)

Why Choose Us

San Antonio's
Trusted Experts

We help protect your household routine with reliable hot water and dependable plumbing. Our team focuses on identifying the root cause of plumbing issues and delivering lasting repairs. Our family-owned company helps larger households make informed decisions with confidence.

Customer-First Approach

We prioritize your schedule and explain every step clearly.

Honest Upfront Pricing

You receive clear estimates with zero hidden fees before work begins.

Properly Sized Water Heating

We match tankless systems to the water demands of multiple-bathroom homes.

Get Your Free Estimate Today

Our Services — Tankless Water Heaters & Residential Plumbing (Unbounce Section)

Our Services

Tankless Water Heaters & Residential Plumbing

Keep your home running comfortably with reliable tankless water heater and residential plumbing services from 4M Plumbing. From upgrading your hot water system to handling everyday plumbing problems, our experienced team provides honest service and quality workmanship for San Antonio homeowners.

Schedule Your Service Today

Tankless Water Heater Installation

Enjoy a steady supply of hot water without a traditional storage tank. We install tankless systems based on your home's plumbing setup and hot-water needs, with free estimates and a 2-year labor warranty on water heaters.

Tankless Water Heater Repair

Noticing inconsistent temperatures, lower hot water pressure, strange sounds, or changes in water quality? Our team can inspect your tankless system, identify the issue, and provide the right repair to restore reliable hot water.

Water Heater Replacement

Ready to replace your old water heater? We can help you determine whether a tankless system is the right fit for your home and provide professional installation from start to finish.

Residential Plumbing Services

Beyond water heaters, we provide a range of plumbing services to keep your home working properly. From leaks and pipe problems to bathroom plumbing, drain issues, slab leaks, and emergency plumbing, our team is ready to help.

Get Your Free Estimate

How It Works — Simple 3-Step Process (Unbounce Section, Boxed)

How It Works

Our Simple 3-Step Process

From your first request to the completed job, our straightforward process keeps everything simple, transparent, and hassle-free. We make it easy to get the right plumbing solution with trusted service every step of the way.

Step 01

Fill Out the Form

Provide basic information through our quick, user-friendly form.

Step 02

Receive Your Assessment

We review your needs and schedule an assessment to discuss the issue and your options.

Step 03

Complete the Work

We complete the work with expert care and quality workmanship designed to keep your plumbing running reliably.

Book Your Appointment Today

CTA — San Antonio Plumbing & Water Heating (Unbounce Section)

Get Started Now

Ready to Upgrade Your Home's Hot Water System?

Book your free estimate today to explore tankless water heater options for your family and address plumbing issues before they become more costly.

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Special Offer — Save on Plumbing Services (Unbounce Section)

Special Offer

Save on Plumbing
Services Today

Discount Coupon

Save $500 on Water Heater Replacement

Discount Coupon

Save $75 on Any General Plumbing Service

Exclusive offer. Not valid with other promotions. Available to residential customers only. Limited-time savings available.

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OUR SERVICES WHY CHOOSE US ABOUT US

About Us — 4M Plumbing Services (Unbounce Section)

About Us

A Family-Owned Team Built on Excellence

4M Plumbing serves homeowners throughout San Antonio, including Stone Oak, with specialized plumbing and tankless water heater services. Our family-owned company brings more than 37 years of experience, helping property owners identify and solve plumbing issues before they become major expenses. We believe every homeowner deserves honest advice, quality workmanship, and systems built for long-term reliability. From routine plumbing concerns to complex water heater upgrades, we treat every home with the care and attention we would give our own.

Speak With Our Team

4M Plumbing Services technician at work in San Antonio

Testimonials — Unbounce Section (4M Plumbing)

Testimonials

What Our Customers Say

Our commitment to quality workmanship, transparent pricing, and dependable service has earned the trust of homeowners across San Antonio. See what your neighbors have to say about their experience with the 4M Plumbing team.

Rated on Google Reviews

“ I had a great experience with this company. They responded quickly and came out in less than 24 hours to replace a gas hose that had a leak, which I truly appreciated. Technician Williams was excellent—very respectful, professional, and knowledgeable. The service was reasonably priced, and the job was done well. What stood out the most was that he took the time to clean up after he finished. I would definitely recommend this company to others!

Violeta Mitchell

4 months ago

“ Absolutely outstanding service! From start to finish, William was professional, respectful, and very honest. He made the whole water heater installation process smooth and stress-free. The work was completed quickly and with great attention to detail. I couldn’t be happier with the results and would definitely recommend 4M Plumbing to anyone!

Melissa Valadez

4 months ago

“ I was nervous when I called for a safety checkup before I was able to move my new tenants, but the team from 4M Plumbing arrived on time and fixed the leak quickly. They were efficient, reliable, and honest about the work needed, and their friendly attitude made the whole process stress-free. I appreciated the punctual arrival and the thorough leak detection services. I will definitely use them again and recommend them to anyone searching for a plumber near me.

Albert Trevino

11 months ago

“ I have used 4M multiple times over the span of several years, and they always deliver, unlike other local plumbers. Their costs are reasonable, and William always goes to a great job. He was able to upgrade my 54-year-old washer connections within an hour, and everything works as it should. I recommend them!

Don Rios

a year ago

“ William of 4M Plumbing came to our rescue to take care of a leak on the connections to our washer. I also had William give us a quote on a new water softener system since our previous one stopped working. William is a genuinely good person. He took the time to explain at least 3 different options based on my concerns and budget. I felt like I was having a conversation with a long-term friend. In the end, based on our needs and William's sound advice, I need to save a little more money to buy the system that will handle our needs for years to come. I look forward to doing business with William and 4M Plumbing in the near future. 4M Plumbing will be my go-to contact for all our plumbing needs. Thanks, William, for providing clarity to our situation!

Eddie Fernandez

6 months ago

“ A lifesaver. My toilet started making bubbling noises the night prior, and I assumed I could hold off on a plumber. Unfortunately, it disagreed, and sewage started coming out of my tub the following night! It was already after 9pm, but Will took my call and was at my door in about 45 minutes. He took the time to explain what was happening (turned out to be a giant clog 40 feet deep!) and what he could do. He took the time to educate and what to keep in mind for the future since the pipes are from 1960 and the house doesn't have a cleanout. He was very polite and took care to come in and out with booties over his shoes. The next morning, he came back to fix a leak from the very old valve on my toilet. I really appreciate his professionalism and dedication to make sure I had a fully functional toilet again. Thank you!

Nathalie Guerrero

7 months ago

“ Writing a review for 4M Plumbing Service. Will B., with 4M, came to my home to help with a slow-flushing toilet. He quickly diagnosed what the issue was and offered several options to remedy the problem. Never trying to upsell me or discourage me with choosing the lower-cost option. I will probably have to replace the toilet sooner than later, but he bought me some time so that I didn’t have to do it immediately. While he was there he also replaced a cartridge in a shower valve. If you have ever replaced a shower cartridge, you know how difficult it can sometimes be. But he handled it fairly quickly with specialized tools and experience. I also would like to commend Will B. and 4M for showing up as scheduled and the communication prior to showing up. I also like that he didn’t mind explaining what he was doing as he went along. I would definitely recommend Will and 4M for your plumbing needs.

DanCan (dancan)

a year ago

“ I was concerned when the hot water didn't work, but William from 4M Plumbing was incredibly efficient and arrived right on time. He was friendly and honest about what needed to be done and completed the repair quickly. The whole experience felt reliable and reasonably priced, and I’ll definitely call them again if I need any work—they're the best plumbers near me in San Antonio.

Candice Stevens

a year ago

“ Will was very helpful from the start to the end of the project. We couldn’t be any happier with the service he provided. Thank you, 4M Plumbing, for employing such an excellent, knowledgeable, and experienced worker. Keep up the awesome work and we’ll continue to seek your services in the future.

Jose Keubke

a year ago

Professional Plumbing and Tankless Water Heater Services Built to Last

Professional Plumbing and Tankless Water Heater Services Built to Last

San Antonio's Trusted Experts

Customer-First Approach

Honest Upfront Pricing

Properly Sized Water Heating

Tankless Water Heaters & Residential Plumbing

Tankless Water Heater Installation

Tankless Water Heater Repair

Water Heater Replacement

Residential Plumbing Services

Our Simple 3-Step Process

Fill Out the Form

Receive Your Assessment

Complete the Work

Ready to Upgrade Your Home's Hot Water System?

Save on PlumbingServices Today

Save $500 on Water Heater Replacement

Save $75 on Any General Plumbing Service

A Family-Owned Team Built on Excellence

What Our Customers Say

San Antonio's
Trusted Experts

Save on Plumbing
Services Today