San Marcos Plumber License #986152

Big B's Plumbing Company

Big B's Plumbing, Your Trusted San Marcos Plumber!

"Your Plumber For Life"

Big B's Plumbing is your trusted San Marcos plumber! Whether you're dealing with a leaky faucet, clogged drains, or a plumbing emergency, our team of skilled professionals is here to provide top-notch plumbing services to residents and businesses in San Marcos and the surrounding areas. With years of experience and a commitment to customer satisfaction, we are dedicated to resolving your plumbing issues promptly and efficiently. From routine maintenance to complex repairs, we have the expertise and resources to handle any plumbing job precisely and carefully. So contact Big B's Plumbing today and let us be your go-to plumber in San Marcos for all your plumbing needs.


Our home is our castle so when a plumbing problem occurs It throws everything out of whack. A plumbing repair problem is never planned and needs attention now. We’ve built a reputation on service and quality work. Whether your pipes are backed up or your water heater has seen its final day, we’re ready on a moment's notice to bring peace back to your castle. Call BIG B's today!


When we have a plumbing problem in our business it usually affects everyone around you. If you’re a restaurant owner, business park, or school, you’ll need an expert plumbing technician. Our plumbing professional will quickly diagnose the problem, tackle it and have you back up and running. We want you to do what you do best. We’re your professional plumber in San Marcos and surrounding areas.


Do you need a plumber now? We have trucks stocked with supplies and state-of-the-art-equipment, ready to meet your plumbing emergency demand. Slab Leak, sewer line backed up, broken pipe, whatever the case, we'll be on location in record time to get you back up and running. Emergency plumbing problem? That's what we handle best with great rates and awesome service to match.

$99 Drain

Big B's is your trusted San Marcos $99 drain cleaning service. We've been clearing drains in San Marcos and outer surrounding areas for over a decade. We use the latest drain cleaning equipment and techniques to clear any drain right the first time. There has never been a clogged drain we cannot clear. Contact BIG B's today for your $99 drain cleaning service. You will not be disappointed.

Deals &

Big B's has you covered with great saving on most plumbing services. Not only do we provide incredible service we also provide great value. Are you military or a senior? Will you be a first-time customer? We have savings for your home services. Come and experience BIG B's!

Get The Service You Deserve!

Your Trusted San Marcos Plumber 

Have you ever heard those famous words, "Honey, can you call the plumber?" We hate those dreaded plumbing problems because they're so unexpected. We get up one morning, and there's no hot water, a pipe burst, or the garbage disposal decides to stop working. Whatever the case, it seems to throw the house out of sync. Big B's Plumbing is ready to answer the call in record time when you need a San Marcos Plumber. Our plumbers are experienced and have received the highest level of training. We don't have big TV ads, but we have state-of-the-art equipment, and our trucks are stocked and ready for any plumbing issue, big or small. So when you need a San Marcos Plumbing Company, Big B's Plumbing has you covered. 

Equipped with the Latest Plumbing Technologies

One thing is for sure; you'll never see a Big B's Plumber with outdated equipment because we equip all our plumbers with the latest plumbing technologies. Those technologies extend to our call center as well. We believe in coaching and training our employees to get the most out of their gifts and talents. You, the homeowner, gain from the results of that training through the excellent repair and service passed on to your job. Our San Marcos plumbers will offer options whenever possible, such as repairing or replacing a water heater, toilet, faucet, and garbage disposal.

I Just Typed In, "Plumber Near Me San Marcos"

Finding the right plumbing company can be daunting for some. For those tech-savvy people, they go to their favorite search engine and type in "Plumber near me San Marcos" or 'Plumbing company San Marcos" and then pick from the local search results. Others would call a friend or family member for a referral. Some may take a few extra minutes to dig deeper and check out some plumbing company reviews. At Big B's Plumbing, we're up for the challenge. We have hundreds of top-notch reviews across Facebook, Google Business, and Yelp. Check us out!! When you're looking for a San Marcos Plumbing Company with awesome reviews, Big B's Plumbing is right up your alley. 

Plumber in San Marcos Exceeding Expectations

A plumbing problem is never a planned event. It can be stressful, and we at Big B's Plumbing want to take the stress out of an uneventful situation. Most plumbing problems can be solved quickly and efficiently. We have on-the-spot financing for major plumbing misfortunes such as flood damage, a broken water heater, a trenchless sewer line, a home repipe, or a burst pipe. You can never predict when a plumbing problem will hit, and we know that most households are on a tight budget. At Big B's Plumbing, we offer interest-free nine-month financing, and for longer-term financing, we have 5-years starting at 8.99%. Call your premier San Marcos Plumbing company, Big B's Plumbing, and get the financing you deserve.

Brandon and Family, Licensed plumbing contractor

Family Owned & Operated

My name is Brandon Mageno. I'm the founder, President, and CEO of Big B's Plumbing Company. As the founder, I never thought about being average or good. My passion for being the best plumbing company in Southern California has always been the same. Providing plumbing services to this great county is simply in my DNA. Nothing makes me happier than to see a satisfied customer. Learn More About Us

It Doesn't Need to be a Plumbing Emergency to Get Financing

You don't need a plumbing emergency to take advantage of our financing. For example, do you want to upgrade your water heater? You may want to upgrade to an on-demand water heater, also known as a tankless water heater. Are your pipes starting to leak? If you have an older home, your water pressure is bad, or your pipes are starting to leak, you may need a home repipe. But don't wait for a plumbing disaster! You can use your financing for any plumbing problems or luxuries that exceed $1,000. 


  • Low Water Pressure Repair
  • Garbage Disposal Installation
  • Kitchen and Bathroom Remodel
  • Tankless Water Heater Installation
  • Sewer Line Repair
  • Water Leak Repair
  • Home Repiping
  • Water Filtration Systems
  • Toilet Installation and Repair
  • Commercial Services
  • Residential Plumbing Services
  • Trenchless Sewer Line Repair
  • Hydro Jet Drain Cleaning
  • Emergency Plumbing Services
  • Slab Leak Detection
  • Video Leak Detection Service
  • Water Heater Replace or Repair
  • Gas Line Repair and Replace
  • Leak Detection
  • Drain Cleaning Service
  • Bathtub Installation
  • Septic Tank Repair

    We Hope You'll Make Us Your Preferred Choice

    Did you know that San Marcos had less than 4,000 in population less than 50 years ago? Now the city is booming with close to 100,000. The bottom line is that San Marcos is a beautiful place to live. Most communities here are new, less than 20 years old. New homes, shopping centers, colleges, and business parks span the landscape. That means the appeal for honest plumbers in San Marcos is at an all-time high. When you need an expert plumber in San Marcos, Big B's Plumbing has you covered. We have over a decade of service to the San Marcos community; we hope you'll make us your preferred choice.


Your Opinion Matters!

Google 5 Stars
Facebook 5 Stars
Yelp 5 Stars

Your San Marcos Plumber Has Had a Background Check

Do you ever feel uncomfortable when a plumber is in your home? When we stop to think about it, a complete stranger is in your home. We know how many customers feel about tradespeople in their homes, especially if they have yet to have a background check. At Big B's plumbing, we've taken some of the guesswork out of hiring a San Marcos plumber. We have not only completed background checks on all our plumbers but also hired a third-party company to perform the checks to hold us accountable. Only some companies that say they have completed background checks, actually complete them. For example, performs criminal and sex offender background checks on anyone entering your home.

Checks are also performed on company owners and anyone who handles credit card transactions. They also check the company's license, bond, and insurance annually. In addition, any plumber entering your home has a badge with their picture and a QR Code where you can verify their status.

When It Comes to Customer Safety, We Go the Extra Mile

Regarding customer safety, customer care, and value, Big B's Plumbing has pulled out all the stops. After checking out our hundreds of reviews on Facebook, Google Business, and Yelp!, we hope you'll come away convinced that Big B's Plumbing has the San Marcos Plumber that's right for you. We're also an accredited plumbing company with the Better Business Bureau with an A+ rating. So when you need a plumber in San Marcos, Big B's Plumbing has you covered with the best service and value. Call today, and we will exceed expectations.

What People Are Saying...

I called Big B's Plumbing because I the hot water would not turn off in our master bathroom. I tried to turn the valve off under the sink and it broke off, so I had to shut off the main water to the house. It was noticeable the valves were original to the home. When I called, the rep stated that I would be informed about the service tech and their experience along with services offered "On The Spot". I was on a bit of a time crunch...
Read More on Google My Business


Vill M

Found them on Google and they had good quality reviews. Made the call and set up the appointment for same day. Dispatch called me a few hours later to confirm our appointment and let me know that the technician Mathew was on the way. This was supposed to be an easy job once Mathew arrived. But it turned out to be so much more than that. Without hesitation or a sour look on his face, he dove deep into his van...
Read More on Google My Business


Jeremy T

Randy was very knowledgeable and professional. He helped us figure out what we could do with the space given for our bathroom with our remodel. He picked out perfect fixtures and the work he did was beautiful. The cleaned up properly when they were done and everything was handled in one day! I will be calling for Randy anytime we have any plumbing needs. Thank you for doing such a great job!
Read More on Google My Business


Crystal M

Call Today!
Your Plumber For Life!

Contractors License #986152

Scroll to Top