Commercial Weatherproofing and Waterproofing in California, NEVADA & ARIZONA

Experience the highest quality weatherproofing for your construction project.

Get a Consultation For Your Project


Proper weatherproofing is vital both in new construction as well as remedial construction. Not only does it protect structures and their interiors from the elements but also reduces energy consumption and optimizes energy efficiency.

We specialize in many types of projects from new construction and repair work to complete remediation of existing systems. We are also proficient in locating leaks and addressing water intrusion concerns.

Regal is able to provide unmatched skill and expertise with our team of professionals, the use of only the best materials and our steadfast commitment to high quality without complications.

Whether your project is small or large, old or new, we will work with you throughout the entire process to ensure we complete our scope of work on time, on budget and with the quality assurance you are looking for in your weatherproofing contractor.

Because we work closely with the most reputable manufacturers in the industry to stay current with emerging technologies, we have the unique ability to offer the latest cutting-edge solutions.

Call now to schedule your inspection

(909) 947-4035

our services

VA Long Beach


Caulking / Sealants

Wall Membranes / Air Barriers

Expansion Joint Systems

Pedestrian and Vehicular Coating Systems

High Performance Coatings


Curtain-Wall / Window-Wall Re-Caulk

Water Testing and Leak Repair

Building Facade Re-Caulk

Epoxy Injection

Concrete Repair

High Performance Coatings


Firestop Application







Penetrating Sealers

Request a quote

For a no-obligation quote, please fill out the form or call us directly at

(909) 947-4035

What Makes Us Different?

Environmentally Friendly

We help your project withstand the elements. A little care up front saves thousands of dollars later.

Family owned & operated

We’ve been in business for over 34 years providing outstanding quality and service. 


We are state licensed, bonded and insured and we are a union contractor.

Customer Satisfaction

We are committed to the highest level of professionalism, integrity and value for our clients.

Let’s Build Something Together

There is no complicated project that exist in our vocabulary. You will be surprised as to how effective and structured our services can be. Before you know it, you have a state of the art project in a matter of days!

The duration of time it takes for us to complete a project can vary as most projects are not the same. We provide a carefuly evaluated estimate for how long it will take to complete a project.

All of our projects are quoted and invoiced according to their requirements. Any additional work above and beyond the agreement will result in an additional charge. 


Distance has never been an issue for us, we cover California, Arizona & Nevada.

Yes, indeed. No waterproofing project is too big or too small. We are a state union contractor and are licensed, bonded & insured.


As a matter of fact, although similar to waterproofing, we also provide weatherproofing services.

Licenses and Certifications

CA Contractors License #740801

NV Contractors License #0075365

AZ Contractors License #137876

SBE #1787777