Affordable Five Star Plumbing

Contact Us Today

We are fully licensed and insured to provide you with the best plumbing services. We are also a family owned and operated company that uses environmentally friendly products, and we stand behind our work with 100% satisfaction guarantee. Call us TODAY for your estimate!

Get Estimatesfor Plumbing Service

QualifiedLicensed. Insured. Experienced.

LocalLocally owned and operated

Schedule an appointment today!

Call (760) 970-8440 for Fast, Affordable Plumbing Services.

Superior Service

Quick Response

Trusted Experts



When the plumbing system at your home or business isn't working properly, every day activities such as bathing and cooking become impossible. Because of the complexity of most plumbing issues, they are rarely easily fixed on your own. That's where Guardian Plumbers comes in. Our licensed and insured San Marcos plumbers can help with nearly any plumbing need, no matter how big.

Since 2003, Guardian Plumbers has provided residents and business owners throughout the San Marcos area with affordable, quality plumbing services. Specializing in everything from water heater installation to sewer line repair, our expert local plumbers will work hard to keep the water flowing.


Our Services

  • Residential Plumbing Service
  • Emergency Plumbing Repair
  • New Plumbing Installation
  • Plumbing Repairs
  • Piping/Repiping
  • Sewer Services
  • Leak Detection & Repair
  • Commercial Plumbing Service
  • Routine Plumbing Maintenance
  • Water Heater Installation & Repair
  • Tankless Water Heaters
  • Drain Cleaning & Clearing
  • Slab Leak Repair
  • And More!


Guardian Plumbers is here for all your commercial and residential plumbing repair and installation needs. From tankless water heaters to slab leak repair, we do it all! We take pride in offering affordable prices backed by exceptional customer service and industry leading warranties. Call us today for expert San Marcos plumbing services!


  • Residential Plumbing

    Residential Plumbing Services for San Marcos

    Residential Plumbing in San Marcos

    The plumbing system is arguably one of the most important home comfort systems in your home. From keeping your dishes clean to providing water for drinking, if something isn't working properly, your daily routine could be interrupted. When plumbing issues have got you down, you can count on the San Marcos professional plumbers at Guardian Plumbers. Our highly trained plumbers have years of experience and are highly trained in the latest plumbing technology to help keep the water flowing!

    New Plumbing Installation

    Are you considering a renovation to your kitchen or bathroom? Guardian Plumbers can help! From simple faucet updates to complete pipe relocations, our plumbers handle it all with care. Our plumbers are highly trained and certified to ensure that every installation is performed properly to prevent future problems such as pipe bursts and leaks. During our onsite estimate, we'll work with you to design a custom plumbing solution to fit your unique needs, style, and budget.

    Plumbing Repairs

    From major pipe bursts to annoying faucet leaks, when your plumbing system breaks down, you can count on the qualified plumbers at Guardian Plumbers to get your water up and running again. Our team is certified to handle nearly any residential plumbing repair you may require including water heater repairs, main sewer line repairs, general leak repair, garbage disposal repair, and much more!

    Routine Plumbing Maintenance

    To keep everything from your shower to your dishwasher running at its best, routine maintenance on your home's plumbing system is recommended. At Guardian Plumbers, we have the knowledge and skill to make sure your plumbing fixtures stand the test of time. During a typical maintenance call, one of our expert plumbers will thoroughly inspect your pipes, drains, and other fixtures to identify any potential problems. If we detect any issues, we'll recommend the best solution to save you both time and money. Best of all, because we show up in a fully stocked truck on every service call, we can perform any necessary repairs on the spot in most cases!

    Call us today at 760-970-8440 for top quality residential plumbing repair, maintenance, and installation in San Marcos!

  • Emergency Plumber

    San Marcos Emergency Plumbing

    San Marcos Emergency Plumber

    When plumbing catastrophes strike, you can count on Guardian Plumbers to be there for you in your time of need. Our highly trained San Marcos plumbers have years of experience handling a variety of plumbing repairs from burst pipes to broken toilets. We have representatives standing by 24 hours a day, 7 days a week to assist in your plumbing emergency.

    Emergency Leak Repair

    Imagine - it's 2am and suddenly a pipe bursts and starts flooding your kitchen. Or a hidden leak causes a ceiling collapse in the middle of the dinner rush at your busy restaurant. Even the worst plumbing leak is no match for the experienced plumbers at Guardian Plumbers. Our team is highly trained in the latest plumbing technology and specializes in both commercial and residential leak repair. We have representatives standing by to take your call no matter the time, day or night, and we'll send an expert local plumber to your home or business as quickly as possible ready to get to work repairing all leaks.

    Clogged Drain Emergencies

    From too much toilet paper to non-flushable items to extensive root growth in your sewer line, clogged drains can happen any time and cause a severe drain clog, or worse, a full plumbing system backup. When your drains are completely stopped, you need immediate service from expert plumbers who know drains. At Guardian Plumbers, we specialize in clearing even the toughest drains and can handle any clogged drain issue from sinks to overflowing toilets. We know extensive clogs can be stressful which is why we have emergency drain plumbers in San Marcos standing by to help you when you need us most! 

    If you are experiencing a plumbing emergency such as a backed-up drain, overflowing toilet, or burst pipe, call San Marcos's expert plumbers today at 760-970-8440 to schedule immediate service!

  • Commercial Plumbing

    San Marcos Commercial Plumbing Services

    San Marcos Commercial Plumbing Services

    When you manage a large commercial property, having a well-functioning plumbing system is more than a modern convenience - it's essential to keeping your customers, employees, and guests comfortable and safe. From complete plumbing renovations to emergency plumbing repair, Guardian Plumbers is San Marcos's choice for top quality commercial plumbing repairs, installations, and maintenance services. Our team is fully licensed and insured to handle even the most complex plumbing issue and we'll stand behind each job with our industry leading warranties.

    Full Scale Commercial Plumbing Solutions

    Whether you need professional-grade toilets and urinals or commercial water heaters and boilers when your business requires expert plumbers you can trust, Guardian Plumbers will be there for you. Our team has years of experience helping business owners create a customized plumbing solution for their business from full public restroom construction or highly functional restaurant grade sinks and disposals. Whatever your business plumbing needs, our plumbers have the knowledge, training, and experience to ensure each job is handled with care and performed correctly the first time.

    Expert Commercial Plumbing Repairs & Maintenance

    Plumbing failures can wreak havoc on your business. From leaky faucets to clogged drains, you cannot afford to ignore problems with your plumbing system. At the first sign of a plumbing problem, call the experts in plumbing repair at Guardian Plumbers. Our team is specially trained in commercial plumbing systems and can help get your plumbing system back to normal as soon as possible.

    An easy way to help prevent unexpected plumbing repairs is with proper plumbing system maintenance. Our San Marcos plumbers will come to your home or office to perform a thorough inspection of the plumbing system checking for leaks and potential clogs, performing water heater tune-ups, and identifying any need for repairs. Your safety and comfort is our top priorty and we will do everything we can to ensure it.

    Commercial Backflow Prevention Testing, Installation, and Repair

    Restaurants, medical facilities, or chemical waste facilities are just some of the businesses that benefit from installing backflow prevention devices. Backflow occurs when water flows backward into the main water supply after a change in pressure caused by events like a pipe burst or fire hydrant usage. This can unfortunately cause contamination in the main water supply from pesticides, soap from dishwashing, human waste, or other chemicals. Backflow prevention devices make sure this never happens by only allowing water to flow in one direction.

    At Guardian Plumbers, we are experts in the installation, repair, and testing of a variety of backflow prevention devices. We'll work hard to recommend the right solution for your business and we offer annual testing services to make sure your device is always functioning properly. Plus, in the event your device stops working, our plumbers will be there for you with professional backflow prevention device repair services.

    Commercial Drain & Sewer Services

    Problems with the sewer or drain systems at your business should only be handled by a licensed professional. Guardian Plumbers's plumbers are licensed, insured, and properly trained to handle even the most extensive drain and sewer line problems. From trenchless pipe repairs to drain cleaning and clearing, our team handles it all! Our team understands how quickly drain or sewer issues can sideline your business, so we are available with flexible scheduling to come to you when it is convenient for you.

    When your business needs an experienced plumber, trust Guardian Plumbers for all your plumbing repair, installation, and maintenance needs! Call 760-970-8440 now to schedule service!

  • Sewer Service

    San Marcos Sewer Service

    San Marcos Sewer Service

    As a property owner, sewer line problems that occur before the underground main sewer pipe are your responsibility. Whether a pipe is punctured from a renovation mishap or extensive tree root growth has caused a major backup, the Guardian Plumbers plumbers are prepared to help you with all your sewer line needs, big or small.

    Trenchless Sewer Repair

    Traditionally, plumbers must dig a trench into your yard to get to the main line for repairs. These repairs take a very long time from obtaining all of the necessary city permits to actually digging the trench. And that's all before the plumber is even able to touch the broken pipe! At Guardian Plumbers, we specialize in trenchless sewer repair to save you time on complex sewer repairs that last. So whether you have a slipped pipe lining, burst pipe, or even need to replace older pipes, our team has you covered with less invasive trenchless sewer repair!

    Sewer Rooting & Hydro Jetting

    One common cause of sewer line issues is due to the excessive growth of roots from trees and larger plants. As these roots make their way deeper into the sewer pipes, they block water flow, causing foul odors and risking massive sewer line backups. When you notice slow drains and bad smells, call the San Marcos sewer rooting pros at Guardian Plumbers.

    Other sewer problems are caused by buildups of grease, paper, and other waste. In these cases, one of the most preferred methods of cleaning is hydro jetting. In this process, our plumbers use high pressured water to force the clog through the main line, allowing water to flow properly again.

    When you have sewer line issues at your home or office, Guardian Plumbers is here for you! Call us today at 760-970-8440 for an estimate. 

  • Leak Detection & Repair

    San Marcos Camera Leak Detection

    San Marcos Camera Leak Detection

    Because your pipes remain tucked away behind inches of drywall or under flooring, minor plumbing leaks can be difficult to detect before it is too late. If left unchecked, even the smallest leak can result in thousands of dollars of damage and repair costs. At Guardian Plumbers, we specialized in advanced leak detection and location services to find the source of the leak and recommend a leak repair solution before you have to deal with a flood from a leak or burst pipe.

    Signs You Have a Plumbing Leak

    While many plumbing leaks make themselves obvious, leaks can be easily hidden and not show telltale signs like water spots or drips for months. However, every leak does exhibit subtle signs to alert you to a leak problem at your home or office.

    Beyond standard water spots or foundation cracks, one of the easiest ways to tell if you may have a leak somewhere is with an unexplained increase to your water bill. When you notice a spike in your water bill that is not due to normal seasonal usage, you may have a leak. You may also notice foul, mildew or mold smells present throughout your property. You can be almost certain that in these cases you have standing water somewhere that was most likely caused by a leaking pipe. 

    Video Sewer Line Inspection

    An important part of your routine sewer maintenance includes inspecting for leaks, clogs, or other debris that has the potential to cause future backup problems. At Guardian Plumbers, we offer video sewer line inspection to capture a clear picture of what is happening in your sewer lines without the need to dig invasive trenches. An annual sewer line video inspection can show our licensed plumbers concerning buildups from roots, grease, or other debris so we can create a customized solution to keep your sewer lines flowing properly all year long!

    If you think you may have a leak at your home or office, give us a call today at 760-970-8440 to schedule non-invasive camera leak detection services in San Marcos!

  • Water Heaters

    San Marcos Water heaters

    Water Heater Service in San Marcos

    From hot showers to keeping dishes clean, the water heater at your home or office is vital to every day comforts. But when your water heater malfunctions, you need solutions from an experienced plumber and fast! At Guardian Plumbers, our plumbers are highly trained to handle repairs, maintenance, and installations for a variety of water heaters including gas, electric, and tankless water heaters.

    Water Heater Repairs

    Imagine waking up to find your water pressure is virtually non-existent for your morning shower. Or worse, what if you have no hot water at all? When your water heater needs repair, our experienced San Marcos plumbers are highly trained to repair nearly any water heater issue, including low water pressure, no hot water, water heater leaks, poor quality taste from the tap, or odd sounds from the water heater. Our team will work hard to get your water heater back in tiptop shape and determine the right solution for your needs, even if we need to replace the entire unit. 

    New Water Heater Installations

    The lifetime of most traditional water heaters is about 10 years old, so if yours is older, you may have already noticed inefficiencies in performance or recurring issues that require repair. When you need a new water heater for your home or office, the water heater experts at Guardian Plumbers are here to help! Our plumbers will help you pick out the right water heater for your needs and follow that up with expert, professional installation services all backed by our industry leading warranties.

    Routine Water Heater Maintenance

    Just like your car or air conditioner, water heaters work best when they receive routine maintenance. With the right frequency of maintenance, you can save money by keeping your water heater functioning at its best. The highly trained plumbers at Guardian Plumbers can help with all of your water heater maintenance needs from making sure the temperature is set correctly to performing a drain and flush! Our goal is to keep your water heater working great for years to come!

    Call us today at 760-970-8440 for expert water heater repair and installation services in San Marcos!

  • Drain Cleaning & Clearing

    San Marcos Drain Cleaning and Drain Clearing

    San Marcos Drain Cleaning and Drain Clearing

    When slow or completely clogged drains interrupt your daily routine, call San Marcos's drain cleaning experts at Guardian Plumbers! Our experienced plumbers have the knowledge and skill to handle even the toughest drain clogs. From standard drain snaking service to advanced hydro jetting techniques, no clogged or slow drain is a match for our drain cleaning services! 

    Sewer Line Rooter Service

    Trees and large plant roots can grow rapidly and overwhelm your main sewer line wreaking havoc on the drains at your home or office. If left unchecked, these roots have the power to cause a major sewage backup or even burst your main line pipe, causing thousands of dollars in damages and repairs. At Guardian Plumbers, we specialize in sewer line rooting services to keep your main sewer line root-free! We use only the latest in rooting and sewer line cleaning technology and guarantee our work with our industry leading warranties. If you've noticed slow drains or foul odors, it may be time to call us for professional sewer rooting service in San Marcos!

    Drain Cleaning and Clearing

    No one wants to stand in a puddle of water during their morning shower as a result of a slow or clogged drain! If your drains are slow or completely blocked, call a drain cleaning expert at Guardian Plumbers today! Our professional plumbers will help get the water flowing normally again and provide tips and tricks to keep your drains working properly all year long!

    Hydro Jetting Services

    Hydro jetting works by sending highly pressurized water through your pipes, forcing out all potential debris and other items causing a blockage in your pipes, including grease, hair, minerals, and even tree roots. Many homeowners in the San Marcos area choose hydro jetting for their tough drain clogs because it can clear nearly any blockage and does not require trenching or extensive digging. At Guardian Plumbers, we specialize in hydro jetting main water lines as well as sewer lines to clear your drains effectively! 

    When you need expert drain cleaning services in San Marcos, call us today at 760-970-8440 to schedule an appointment!

Fast, Friendly Service!

Certified Experts

Locally Owned & Operated

Ask About Our Warranties!

We love our customers - they love us!

  • I found this company in my local news paper listing something i don't usually do. They sent out Mr Ricky Lopez this guy was awesome he took care of our clogged drain and made my wife and i very happy with his work. I have been in the property management business for 20 years and i have yet to encounter a plumber with such a pleasant personalty. I highly recommend this company as i will use them in the future for our plumbing needs.

    Norman L.
  • The air-activated switch to my garbage disposal went out. Howard from Guardian Plumbers was able to get the part and install it in no time. I love these guys. I have used them for years, have ALWAYS been totally satisfied with their work, their manner, their integrity. I only wish all service providers were as conscientious and nice as these guys!

    Silvia L.
  • GUARDIAN is not only A GREAT PLUMBING COMPANY WITH TREMENDOUS EXPERTISE AND INTEGRITY, but they're wonderful people too. Jesse, who was here today, was great -- kudos to you -- you have a client for life in me!

    Silvia L.
  • We can't say enough good things about Guardian Plumbers! We had a slab leak in our floor and wall right in the middle of the house. I found them late at night online and emailed them and they were at our house the next day. Matt and Ricky took the time to make sure they were confident it was truly a slab leak and once they were sure, gave us a couple of different options to repair it without any pressure whatsoever on us to choose the most expensive one. They recommended the water damage restoration co. that could come and clean up the mess and prep it for the repairs and once it was ready they got to work and were diligent to get everything done professionally and thoroughly with no games or tricks.

    Matt, the owner of Guardian, even facilitated our bathroom and floor remodel! He referred us to an excellent tiling company and drywaller but did all the rest of the demo and remodeling himself with just one of his employees. The bathroom looks beautiful and is way nicer than it was before and we are so happy with the results. Matt is very conscientious, honest, reliable, highly skilled and a true professional all the way. And his prices were very reasonable. He's also the quietest construction worker we've ever seen! Sometimes you hardly knew he was here even though he was working right in the middle of the house. We feel like we hit the jackpot with Matt and Guardian Plumbers. He's going to be our plumber for life, no more messing around with shysters.

    Valerie K.
  • About four months ago my kitchen sink was blocked. After 6 days of trying to take care of it myself, I admitted defeat. I called a couple plumbers and Guardian was the company that could get out to my house the quickest. So I went with them.I'm glad I did. The price was great and the service was even better!! I hope I never need a plumber again, but if I do, I will call Guardian Plumbers!!!

    Melissa H.
  • Guardian Plumbers is awesome! They have come out to work on the plumbing in my house on several occasions. They are always professional, clean, and punctual! Their prices are reasonable and they are super knowledgeable. I am a very happy customer!

    M. B.
  • So we've been in Wildomar for 11 years, had many different trades to our home for various service calls & been quite satisfied but when it comes to plumbing we've tried so many different companies & not one has ever been able to come close to the service we received from Guardian! Thank you Ricky! This is one phone number I'am hanging onto! Excellent service!

    Gina M.
  • I busted a pipe doing DIY, and Jesse Arviso came out and fixed it fast. To me it seemed like a tough and expensive fix but it was really affordable and Jesse made the fix seem easy. Thanks, I'll be calling them next time I mess up a DIY again.

    Nick T.
  • These guys were great I had some sewer lines start to back up in My home Temecula and they came out within 2 hrs and routed the lines. They were fast professional and didn't skip a beat.if your all about supporting local family business call Guardian Plumbers for any plumbing needs ask for Matt or Kirsten great people .

    Hamid H.
  • I am so glad I called Guardian Plumbers! The plumber (Ricky) arrived at the scheduled time and got right to work. He was courteous, very informative and patiently answered all of my questions. Ricky was extremely professional and fixed the problem in no time at all . I would not hesitate to call guardian plumbers again if needed or to refer them to family/friends.

    M. N.
  • I had a clogged sink in my kitchen and have been dealing with it since Saturday. I had a plumber come out on Sunday to clear it. Seemed to be working but the next day it was worse. Called the plumber from about 11:30 AM to 7PM...absolutely no response...unbelievable! Today I called Guardian Plumbers and I was so impressed with them...they fixed my sink at a really fair price and even took $10 off because of all my troubles! I definitely will call them with any plumbing needs and will recommend them to anyone! Thank you for renewing my faith in American companies!!

    Fari G.
  • We all need a plumber sometime and I have used many over the years BUT THESE PEOPLE ARE THE BEST!!!! FRIENDLY, PROMPT, COURTEOUS, and the rates are reasonable. Seriously, call won't regret it. dona in Rainbow

    Dona A.
  • My brother-in-law noticed a leak in the cabinets under the guest bathroom on Sinday night. I called Guardian Plumbers 8:30 Monday morning and Mr. Davis arrived about an hour later. Less than an hour later two high quality valves, superior to the failed ones my previous plumber installed, were in place. No muss no fuss, fast and very easy and at a low, very fair price compated to my previous plumber, No bill padding here at all. I couldn't be happier and intend to call on Guardian Plumbers in the future.

    Richard E.
  • We couldn't be happier with the service that we have received from Guardian Plumbers! We recently had a slab leak and Guardian Plumbers arrived promptly and provided competent, professional service to resolve the problem quickly and efficiently. They went above and beyond to restore our water service. Over the last several years we have had the periodic need for a plumber and every time Guardian Plumbers has been a constant source of dependable service. We have been delighted with their service and will continue to turn to Guardian Plumbers for all of our future needs - we hope you will too!

    S. B.

Our Current Plumbing Specials

  • $10 Off First Time Drain Cleaning

    New customers only. | Cannot be combined with other offers. | Call for details.

  • Discounts for Seniors and Military

    Call for details.

Contact Us

Call us 24/7 at (760) 970-8440 or schedule an appointment below.

First Name

Last Name



Postal Code

How can we help you?

Recent customers with Plumbing needs

  • I need a kitchen sink faucet installed.

    Josephine S

  • Need an estimate for water heater maintenance. It is approximately 9 years old and just want to make sure it is working fine and any upkeep needed.

    David T

  • Good Morning. How much to install a toilet and faucet in downstairs bathroom?

    Johnny R

About Guardian Plumbers

Guardian Plumbers is here for all your commercial and residential plumbing repairs and installation needs. From leaking faucets or clogged drains to complete sewer cleanouts, we do it all! We are proud to provide service to the homes and business in the San Marcos area and surrounding areas.

We are fully licensed and insured to provide you with the best plumbing services. We are also family owned and operated company that uses environmentally friendly products, and stands behind our work with 100% satisfaction guarantee

Our customer's trust is important to us, so you can count of us for professional advice, top quality work and comprehensive service. We fix your plumbing problems right the first time with the most comprehensive service warranties and back our workmanship. We use the industry's most current technology and our technicians undergo advanced training. We're prepared to help you with any questions you may have or any situations you may encounter.

Call us TODAY at 760-970-8440 for your On-Site Estimate! 

2016 CMP Here To Help Award