Commercial Plumbing Maintenance Fontana, Corona & Upland CA

Keep your business running with preventive plumbing service plans
Get Maintenance Quote

Preventive Plumbing Maintenance Keeps Your Business Operating Smoothly

A backed up toilet during lunch rush. Grease trap overflow in the kitchen. No hot water for your salon on a busy Saturday. Plumbing failures cost businesses thousands in lost revenue and emergency repairs. Smart owners invest in commercial plumbing maintenance Fontana CA businesses need to prevent disasters before they strike. Regular service keeps everything flowing while you focus on customers and profits.

We design maintenance programs for restaurants, offices, retail stores, medical facilities, and industrial properties across Fontana, Upland, and Rancho Cucamonga. Each business has unique plumbing demands. Restaurants need quarterly grease trap cleaning and drain jetting. Office buildings require backflow testing and water heater maintenance. We customize commercial plumbing maintenance Rancho Cucamonga CA companies trust to match your specific needs and budget. C36 License #1115426 certified for all commercial work.

Our maintenance techs know commercial properties inside and out. We catch small problems during routine visits before they become expensive emergencies. That slow floor drain gets cleared before it floods. Those aging supply valves get replaced before they burst. We document everything, track equipment age, and recommend upgrades when needed. Regular maintenance extends equipment life and prevents surprise failures that disrupt operations.

We also serve commercial plumbing maintenance Corona CA properties need, plus Redlands, Glendora, Orange County, Pasadena, and Monrovia. Our programs include priority emergency response, discounted repair rates, and flexible scheduling around your business hours. Many insurance companies offer lower premiums for properties with documented maintenance programs. Whether you manage one restaurant or multiple properties, we keep your plumbing systems reliable. Stop reacting to emergencies and start preventing them. Our maintenance agreements pay for themselves by avoiding just one major incident.

24/7 Emergency Support

We provide 24/7 emergency plumbing support to address urgent issues anytime.

Affordable Pricing

Our services come at competitive prices without compromising quality.

Customer Satisfaction

Our top priority is customer satisfaction, ensuring every client is happy with our work.

Quality Assurance

We guarantee quality workmanship and use high-grade materials for all projects.

Current AS Plumbing Promotions

Expert Gas Leak Detection Special: $250

Protect your home and family with professional gas leak detection from AS Plumbing. Even a small gas leak can be a serious hazard. Our licensed technicians use advanced tools and proven methods, including a system-wide pressure test, to accurately find leaks in your gas lines and appliances. Take advantage of our $250 Gas Leak Detection Special. This service includes a thorough inspection of your gas system by a qualified professional and a detailed, upfront estimate for any required repairs. Don't guess when it comes to gas—get the peace of mind that comes from a professional diagnosis. Call today to schedule your safety inspection.
Protect your home and family with professional gas leak detection from AS Plumbing. Even a small gas leak can be a serious hazard. Our licensed technicians use advanced tools and proven methods, including a system-wide pressure test, to accurately find leaks in your gas lines and appliances. Take advantage of our $250 Gas Leak Detection Special. This service includes a thorough inspection of your gas system by a qualified professional and a detailed, upfront estimate for any required repairs. Don't guess when it comes to gas—get the peace of mind that comes from a professional diagnosis. Call today to schedule your safety inspection.

Enjoy Pure, Soft Water From Every Tap & Save $750!

Hard water doesn't just leave spots—it damages your plumbing and shortens the life of your expensive appliances. A whole-home water filtration and softener system is one of the smartest investments you can make to protect your home from costly scale buildup and corrosion. AS Plumbing can install a state-of-the-art system that provides clean, soft water to your entire home. For a limited time, we're making this essential upgrade more affordable than ever with a $750 discount on a complete installation. Protect your pipes, your appliances, and your peace of mind. Contact us today for a free, no-obligation estimate!
This offer provides a $750 discount on a new, complete whole-home water filtration and/or softener system installation by AS Plumbing. A standard installation is assumed; any necessary rerouting of plumbing may be an additional charge. The discount does not apply to repairs or service on existing units. This offer cannot be combined with any other discounts and is valid for a limited time.

Major Sewer Problem? Major Savings! Get $1500 OFF Sewer Line Replacement.

Worried about your sewer line but dread the thought of a torn-up yard? AS Plumbing has the solution. We specialize in modern Trenchless Sewer Repair, a minimally invasive method to replace your main sewer line without the extensive digging, saving your driveway, landscaping, and gardens. This advanced technology provides a brand-new, seamless pipe that is stronger and more durable than the old one. For a limited time, get the best technology and the best price with $1500 OFF your full trenchless or traditional sewer line replacement.
Receive a $1500 discount on a complete sewer line replacement project. Offer is valid for both traditional and trenchless installation methods. The discount is not applicable to sectional repairs, pipe lining, or any service other than a full replacement of the main sewer line. Cannot be combined with any other discounts. Contact us to schedule an evaluation. Offer valid for a limited time.

Get $100 OFF Professional Faucet Installation

Whether you have a leaky faucet that needs replacing or you've already purchased a new one, our professional installation service is the perfect solution. An expert from AS Plumbing will ensure your new kitchen or bathroom faucet is installed correctly and functions perfectly without leaks.
This offer provides a $100 discount on the labor for a single kitchen or bathroom faucet installation. The cost of the new fixture is not included. Additional charges may apply if existing plumbing, valves, or lines require repair or replacement. This special is limited to one per customer and cannot be combined with other offers.

Upgrade Your Kitchen & Save! 25% Off Garbage Disposal Installs

Whether you're replacing a broken garbage disposal or installing a new one for the first time, let our experts handle it. AS Plumbing provides fast, clean, and reliable garbage disposal installations to make your kitchen cleanup easier. For a limited time, take 25% OFF our complete installation service. We'll ensure your new unit is installed perfectly, with secure connections for years of trouble-free use.
Offer is for a 25% discount on the installation service/labor cost. The price of the garbage disposal unit itself is separate. Offer applies to standard installations where suitable plumbing and electrical connections are present. Any necessary modifications will be quoted separately. Cannot be combined with other promotions. Valid during standard business hours.

Protect Your Home & Save $1500 on a Full Repipe!

Invest in the long-term value and reliability of your home with a complete plumbing system replacement. A full repipe from AS Plumbing not only solves issues like poor water pressure and discoloration but also significantly increases your property's value and prevents future emergencies. Our team specializes in efficient, minimally invasive repiping projects. And right now, this essential home improvement is more affordable than ever. We're offering a massive $1500 discount on all full home repipe projects.
Receive a $1500 discount on a complete repipe of your home's hot and cold water supply lines. A minimum project scope is required to qualify as a "full home repipe." Discount is not applicable to drain line replacement, partial repairs, or reroutes. This offer is for a limited time and cannot be combined with other discounts. Call for a free, detailed estimate.

Hidden Leak? Find It Fast for Just $49.99!

Don't let a small leak turn into a huge problem. Hidden water leaks can cause serious structural damage, mold growth, and wasted money on your water bill. For just $49.99, the expert technicians at AS Plumbing will come to your home, use their expertise to pinpoint the exact source of the leak, and provide you with a clear, upfront quote for the repair.
The $49.99 is a diagnostic fee for our leak detection service and does not include the cost of any repairs. Once the leak is located, you will receive a separate, upfront quote for the required repair work. This offer is valid for one leak issue per household during standard business hours. Cannot be combined with other promotions.

New Toilet Installed From Just $209

Need a new toilet? AS Plumbing offers professional installation starting at just $209. We provide fast, reliable service to get your new toilet set up perfectly. We also offer a full range of toilet repair services. Call today to schedule your appointment!
Offer is for installation labor of a standard toilet starting at $209. Price does not include the toilet. Additional charges may apply for flange, valve, or plumbing repairs. Haul-away of old unit is extra. Call for complete details and a firm quote.

Limited Time: Get $799 Off a New Tankless Water Heater!

Never run out of hot water again! Make the switch to a modern, energy-efficient tankless water heater. You'll save space, lower your utility bills, and enjoy hot water on demand. For a limited time, AS Plumbing is making the upgrade even easier with a $799 discount on your new installation.
Offer valid for a limited time. Discount of $799 is applied to the final invoice for a complete tankless water heater installation. A standard installation is assumed; any required modifications to plumbing, gas, electrical, or venting are extra. Customer is responsible for the cost of the city/county permit fee. Cannot be combined with other offers.

Unclog Your Drain for Just $69!

Tired of slow drains or stubborn clogs? Get your pipes flowing freely again with the AS Plumbing Drain Cleaning Special. For just $69, our expert technicians will cable one clogged residential drain line, quickly and efficiently restoring proper flow to your sink, tub, or shower.
$69 special offer is valid for one Residentia/Commercial drain line (e.g., kitchen sink, bathroom sink, tub, shower) with a ground-level, accessible cleanout. Offer does not apply to main sewer lines, drains requiring roof access, or blockages requiring hydro-jetting or toilet removal. Cannot be combined with other offers. Service must be performed during standard business hours.

Most Frequently Asked Questions

How much does commercial plumbing maintenance cost?
Commercial maintenance plans in Fontana typically run $200 to $800 monthly depending on property size and service frequency. Small offices might pay $200 quarterly while busy restaurants invest $600 monthly. This covers all preventive maintenance, inspections, and priority service. Compare this to a single emergency repair that can cost thousands plus lost business. Most clients save 40 to 60 percent annually versus reactive repairs. We provide free assessments and custom proposals.
How often should commercial properties schedule maintenance?
Maintenance frequency depends on your business type and usage. Restaurants with heavy grease need monthly or quarterly service. Office buildings typically need quarterly visits. Medical facilities may require monthly checks due to strict health codes. High traffic retail stores benefit from bimonthly service. Our Rancho Cucamonga commercial clients find regular maintenance costs far less than emergency repairs and business interruption. We design schedules that match your needs and budget.
What are the benefits of a maintenance agreement?
Commercial plumbing maintenance agreements provide priority emergency response, typically within 2 hours for contract customers in Fontana and Corona. You receive discounted labor rates, usually 10 to 20 percent off regular pricing. Regular maintenance extends equipment life by 30 to 50 percent and prevents most emergency failures. Many insurance companies reduce premiums for maintained properties. Plus, you can budget predictable monthly costs instead of surprise repair bills.
What's included in commercial plumbing maintenance?
Commercial maintenance programs typically include quarterly or monthly inspections of all plumbing fixtures, water heaters, shut off valves, and drainage systems. We perform preventive tasks like drain cleaning, grease trap service, water heater flushing, and backflow testing. Each visit includes a detailed report noting any concerns. Programs are customized for your Fontana business type, with restaurants needing more frequent service than offices. All maintenance helps prevent costly emergency repairs.