21st Century Waterproofing

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About Us

Since 1992, 21st Century Waterproofing has provided expert solutions to protect and restore your property. Specializing in a wide range of services, our skilled team handles everything from deck and balcony coatings to basement and planter waterproofing. We also offer concrete crack injection, repair, and elastomeric stucco coatings to enhance durability and performance.

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Who We Are

Your Local Waterproofing Company for Over 30 Years

21st Century Waterproofing was built on one simple idea: do the job right and be honest about it. For more than three decades, we have been the go-to waterproofing company near you for homeowners and business owners across Riverside and San Bernardino Counties. We started this company because we saw too many property owners get taken advantage of — overcharged, underserved, and left with problems that came back. We decided to do things differently.

Water intrusion is one of the most damaging and expensive problems a property can face. A small leak that goes unaddressed can grow into a serious structural problem. Mold sets in. Foundations weaken. Floors buckle. By the time most people call a contractor, the damage has already spread far beyond where the water first appeared. That is why we take every call seriously and move fast.

When you reach out to us, we do not put you on a waiting list or send out a salesperson. We send a trained member of our team to your property to look at the problem with their own eyes. We inspect

your foundation, your drainage patterns, your walls, and every area where water could be entering. We ask the right questions and we listen to what you have noticed. Then we give you a straight answer about what is going on and what it will take to fix it.

We offer complete waterproofing services in Riverside and across the entire region, covering every type of water intrusion problem for residential and commercial properties. Our team handles everything from a wet basement to a cracked commercial deck to failing expansion joints on a multi-unit building. You do not need to call multiple contractors and coordinate between them. We are your one-stop waterproofing company.

Our crew is licensed, trained, and experienced. We have seen every variation of water problem this region produces — from seasonal rain events to irrigation runoff to the unique moisture challenges that come with desert climates. That experience means we rarely encounter something we have not dealt with before. It means faster diagnosis, smarter solutions, and results that hold up over time.

We have spent 30 years earning the trust of this community, and we do not take that lightly.

Years in Business
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Waterproofing Services in Riverside & San Bernardino Counties
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Residential & Commercial
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Free Property Inspections
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No Hidden Fees
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Why 21st Century Waterproofing

We Work for You, Not Our Commission

There is no shortage of contractors out there, but finding one that is honest, experienced, and actually shows up when they say they will is a different story. Here is what makes 21st Century Waterproofing the right choice for your property.

30+ Years of Real Experience

We have been solving water problems in this region since before most of our competitors opened their doors. Our team has seen every type of water intrusion issue that Riverside and San Bernardino Counties can produce. That depth of experience means we diagnose problems correctly the first time and recommend solutions that actually work for your specific situation.

Free, No-Pressure Inspections

We come out to your property, take a real look at what is going on, and give you our honest assessment at no charge. We are not here to run up the bill or recommend services you do not need. You get straightforward information so you can make the best decision for your property and your budget.

Clear, Written Estimates

Before any work begins, you will have a detailed written quote that breaks down exactly what we are doing and what it costs. There are no surprise charges at the end of the job. No vague line items. No hidden fees. You know what you are paying for and why from the very beginning.

We Move Quickly

Water damage gets worse every day it sits. When you call us, we do not put you on a long wait list. We respond fast, schedule your inspection quickly, and get to work as soon as you are ready to move forward. Your property’s protection is our priority.

One Company for Everything

You should not have to coordinate between a foundation contractor, a roofer, a caulking company, and a coatings specialist. We handle all of it. Our team covers every type of waterproofing service your property needs, which saves you time, money, and the headache of managing multiple contractors.

We Serve Both Residential and Commercial Properties

A family home and a commercial warehouse have very different waterproofing needs, and we are experienced with both. We bring the same attention to detail and quality of work to every job, regardless of the size or type of property.

We Back Our Work

We do not finish a job and disappear. We walk you through everything when the work is done, give you your warranty documentation, and stay available if you ever have a question or concern. Our work is built to last, and we stand behind it.

Our Process

Simple, Clear, No Surprises

We know that dealing with water damage is stressful. Our process is designed to take the stress out of it. Here is exactly what happens when you reach out to us.

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Free Property Inspection

You call us, we schedule a time that works for your schedule, and we come out to your property. We inspect your foundation, lower levels, walls, drainage areas, and every place where water could be entering or collecting. We look at grading and soil conditions around the building and study how water flows across the property during and after rain. We ask you questions: when did you first notice the water, where is it appearing, how often does it happen, and how long has this been going on. This is a real, thorough assessment by an experienced team member. It is not a sales pitch, and it costs you nothing.

Step 1
Honest Diagnosis and Written Estimate

After the inspection, we sit down with you and explain what is causing your water problem in plain, clear language. No technical jargon designed to confuse you. No vague explanations. We tell you exactly what is happening and why. We then walk you through the solutions that make sense for your specific situation and your budget. You will receive a detailed written estimate before we do a single thing. Every line item is explained. There are no hidden fees. There is no pressure to sign anything. You can take your time and ask as many questions as you need.

Step 2
Professional Installation

Once you are ready to move forward, we get to work. We schedule the job around your availability and show up when we say we will. Our crew treats your property with respect, protects surfaces and landscaping during the work, and keeps disruption to an absolute minimum. All of our work is done to code using quality materials built to last in the Inland Empire's climate. We keep you updated as the job progresses and never cut corners to get done faster.

Step 3
Final Walkthrough

When the job is complete, we do not just pack up and leave. We walk you through every part of the completed work and explain how it functions and what it protects. We clean up the entire work area before we go. You receive your warranty documentation and clear guidance on any maintenance steps you should be aware of. We give you our contact information and genuinely encourage you to reach out if you ever have questions after the job is done.

Step 4

Why Act Now

Water Damage Gets More Expensive Every Day You Wait

This is the part most contractors do not tell you upfront: water damage compounds. A small crack in a foundation wall lets in a trickle of water. That water softens the surrounding soil. Softened soil shifts. The crack widens. Now more water gets in. The moisture spreads to wood framing, insulation, and drywall. Mold begins to grow. What started as a straightforward crack repair that might cost a few hundred dollars has turned into a job involving foundation work, mold remediation, and interior repairs that can cost tens of thousands of dollars.

We are not saying this to scare you. We are saying it because we have seen it happen to good people who simply did not know how quickly things could escalate. The single most important thing you can do if you suspect a water intrusion problem is to get a professional set of eyes on it as soon as possible.

Our inspection is free. It costs you nothing to find out what you are dealing with. Call us today and let us take a look.

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FAQ

Questions We Hear All the Time

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How do I know if I have a water intrusion problem?

Common signs include water stains on walls or floors, a musty or damp smell in enclosed areas, visible cracks in your foundation or concrete, peeling paint or wallpaper, rust stains, efflorescence (white chalky deposits on concrete), or standing water after rain. If you notice any of these, give us a call. The sooner you have it looked at, the less damage it causes and the less expensive the repair.

Yes, completely free. We come out to your property, spend real time assessing the situation, and give you our honest diagnosis at no cost and with no obligation to hire us. We believe every property owner deserves accurate information before making a decision.

The timeline depends on the type and size of the work. A concrete crack injection can often be completed in a few hours. A full basement waterproofing project may take two to three days. A commercial coating job on a large roof could take longer. We give you a clear timeline before the job starts so you can plan around it.

Yes. We work on all types of commercial buildings including office buildings, retail centers, apartment complexes, warehouses, and parking structures. Large-scale commercial waterproofing projects are a regular part of what we do.

We stand behind our work. If you experience an issue after a completed job, call us and we will come back to assess it. Our goal is for you to be fully protected long after we are done, and we take that responsibility seriously.

Yes. We provide warranty documentation at the end of every project during the final walkthrough. The specific warranty depends on the type of work and materials used. We explain all warranty details clearly before the job begins so you know exactly what is covered.

We move quickly. In most cases we can schedule a free inspection within a very short time of your call. We understand that water problems are urgent, and we treat them that way.

Yes. We provide waterproofing in Riverside and serve the full Coachella Valley, the High Desert communities, and cities throughout both Riverside and San Bernardino Counties. Our team is familiar with the water and moisture challenges specific to each of these areas.

Yes. We address water intrusion from all angles — exterior grading and drainage, exterior wall coatings, foundation crack repairs, interior basement waterproofing systems, roof coatings, deck and balcony membranes, and joint sealing. We look at the full picture so nothing gets missed.

What Our Customers Say

Trusted by Homeowners and Businesses Across the Inland Empire

Water Is Getting In. Let's Stop It Today.

Every day that water sits where it should not be, the damage grows and the repair gets more expensive. You do not have to figure this out on your own. Our team is ready to come out to your property anywhere across Riverside or San Bernardino County, assess the situation honestly, and give you a clear plan to fix it for good. The inspection is free, the estimate is transparent, and the work is built to last.

Do not wait for the problem to get bigger. Call us today and let’s get started.

Schedule Your Free Inspection Today
or call us directly at:

(760) 558-9258