Tag Archives: waterproofing consultant

WLWC To Perform Tile Deck Leak Investigation on Santa Barbara Estate Home

We’re pleased to announce that we have been retained to perform an investigation on a leaking tiled deck on an estate property in Santa Barbara CA.

A deck at the home has had a history of leaks, leading to damage to ceiling finishes and walls below.

An estate home in Santa Barbara is the subject of our next leak investigation.

The property owner found us after doing a search for a deck waterproofing expert online. We’ll be investigating the leak with visual observations, borescope camera and moisture meters to determine the path of the leak back to its source(s) and write a report after examining the plans, specifications and drawings and comparing the as-built deck to the design intent.

With a history of being able to solve problems and determine responsibility as to what trade may be responsible, our latest client is confident in our abilities to help him recover damages from the appropriate trades that created the defect.

If your building is leaking, call William Leys Waterproofing Consultants LLC, the leak investigation experts in California at 805-801-2380.  Let’s discuss your situation and see how we can help you!

We diagnose the problem and then write a “prescription” to help make your 
leak problem go away!

Transparency Matters: How We’ve Clarified Our SB 326 Inspection Process

Our Updated Logo Reflects Our Role Coordinating SB 326 Inspections

At William Leys Waterproofing Consultants LLC, we believe that an HOA board should understand exactly who it is hiring, what services each professional will provide, and who is responsible for the engineering judgments required as part of an SB 326 inspection.

Recently, correspondence from the California Board for Professional Engineers, Land Surveyors, and Geologists (BPELSG) gave us an opportunity to take a closer look at how we described our SB 326 services on our website and in our proposals.

We took that opportunity seriously.

The result is a clearer and more transparent description of our role, the role of the licensed structural engineering firm performing the engineering services, and how the different parts of an SB 326 project are coordinated for our clients.

Why We Made Changes



SB 326 projects can involve several different disciplines.

There is an important distinction between waterproofing and building-envelope consulting, project coordination, and the professional engineering services that California law reserves for appropriately licensed professionals.

Although we understood those distinctions in practice, the Board’s correspondence caused us to examine whether they were communicated clearly enough in our marketing and contractual documents.

We concluded that we could do better.

Rather than simply changing a few words, we reviewed our website and proposal language with the goal of making the relationship easier for an HOA board, community manager, or building owner to understand before retaining us.

Clearly Identifying Who Performs the Engineering Work

One of the most important changes is greater clarity about the licensed engineering firm’s role.

William Leys Waterproofing Consultants LLC is a waterproofing consulting and project-coordination company. We do not represent ourselves as a licensed engineering firm.

When professional engineering services are required for an SB 326 project, those services are performed by the licensed engineering firm identified for the project.

That distinction is now stated more clearly in our materials.

The engineer is responsible for the engineering observations, professional opinions, determinations, and engineering report within the engineer’s scope of services. The engineering report is prepared and signed or sealed as required by the licensed professional responsible for that work.

Our role is separately described so clients can understand the services William Leys Waterproofing Consultants provides.

What William Leys Waterproofing Consultants Brings to the Project

Our expertise is rooted in waterproofing.

We have been inspecting decks and evaluating waterproofing conditions since 2007. That field experience gives us a practical understanding of how exterior elevated elements are constructed, how waterproofing systems deteriorate, where water commonly enters assemblies, and how seemingly minor waterproofing defects can contribute to much larger problems.

On an SB 326 project, our work may include project coordination, documentation, communication with the client and engineering firm, waterproofing-related observations and consulting, and coordination of other services within our agreed scope.

But experience with waterproofing does not turn a waterproofing consultant into an engineer.

We believe clients deserve to understand that distinction.

Transparency Should Start Before the Contract Is Signed

An HOA board should not have to decipher a website or proposal to figure out who will actually perform the professional services being offered.

Our revised approach is intended to answer those questions upfront.

Before retaining us, a prospective client should be able to understand:

– who the client is contracting with;
– what William Leys Waterproofing Consultants LLC is responsible for;
– which services will be performed by a licensed engineering firm;
– who is responsible for professional engineering judgments and the engineering report;
– what services are included in the proposed scope; and
– what additional investigation or services may be recommended if conditions discovered during the project warrant them.

We believe this level of clarity is good for everyone involved.

Taking Regulatory Guidance Seriously

Businesses sometimes view questions from a regulatory agency as something to fight or minimize.

We chose a different approach.

The Board’s correspondence gave us a reason to review how we communicated our services and ask a straightforward question:

Could an HOA board reading our website or proposal misunderstand who is performing the engineering services?

Where we believed the answer could possibly be yes, we changed the language.

That process has resulted in materials that we believe more accurately describe the respective roles of William Leys Waterproofing Consultants and the licensed engineering professionals involved in an SB 326 project.

Experience and Professional Licensure Are Different Things

California’s SB 326 inspection requirements exist for an important reason: exterior elevated elements can present serious safety concerns when deterioration is allowed to progress unnoticed.

A successful inspection program therefore benefits from both professional engineering judgment and practical knowledge of waterproofing systems and the conditions that cause them to fail.

Those are complementary areas of expertise, but they are not interchangeable.

Our goal is not to blur that distinction. It is to make it clear.

A Better Process for Our Clients

We believe the changes prompted by the Board’s correspondence have made our company better.

Our website is clearer. Our proposals are clearer. The responsibilities of the participants are better defined. And prospective clients receive more information about the structure of the engagement before deciding whether to hire us.

For an HOA board making decisions involving building safety, association funds, and long-term maintenance obligations, transparency shouldn’t be an afterthought.

It should be part of the inspection process from the beginning.

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Questions About an SB 326 Project?

William Leys Waterproofing Consultants LLC provides waterproofing consulting and SB 326 project-coordination services for homeowners associations and building owners throughout California.

If your association is preparing for an SB 326 inspection or trying to understand the condition of its exterior elevated elements and waterproofing systems, contact us to discuss the project, our scope of services, and the role of the licensed engineering professionals involved.

Continue reading Transparency Matters: How We’ve Clarified Our SB 326 Inspection Process →

The Stucco Wall Repairs Looked Great, Until We Water Tested Them… And They Leaked!

  • Stucco Repairs Are Not Easy to Do
  • Lapping New Building Paper Correctly Under Existing Building Paper is Critical To Keeping The Building Dry
  • Hiring an Independent Quality Assurance Inspector Protects Everyone
  • William Leys Waterproofing Consultants LLC Offers Affordable Quality Assurance Inspections

Our last blog post talked about an owner who hired us to perform an inspection on their condo unit at a well known West Hollywood property. The condo had experienced water intrusion while the owner was away and they came home to find water on their bedroom floor.

Continue reading The Stucco Wall Repairs Looked Great, Until We Water Tested Them… And They Leaked! →

San Luis Obispo Contractor Selects William Leys Waterproofing Consultants LLC To Investigate Leaks at Santa Maria Medical Offices

We Will Be Investigating the Source of Water Intrusion on This Medical Center in Santa Maria

William Leys Waterproofing Consultants LLC is pleased to announce that we’ve been selected to investigate the source of water intrusion into a medical building in Santa Maria CA by a well respected local contractor.

The building has been subject to water intrusion over the last several years and is now ready to undergo repairs and upgrades to the facility. As a local consulting firm, William Leys Waterproofing Consultants LLC offers competitive pricing, building envelope expertise and 20 years of experience in the construction industry.

Continue reading San Luis Obispo Contractor Selects William Leys Waterproofing Consultants LLC To Investigate Leaks at Santa Maria Medical Offices →

Pesky Leak to Be Investigated By William Leys Waterproofing Consultants LLC’s Leak Investigation Sleuths

Where’s the leak? That’s why we were hired, to find a pesky leak that has evaded detection of its source for several years.

William Leys Waterproofing Consultants LLC has been retained to provide leak investigation services by a large builder of medical buildings in California. The pesky leak has caused several offices in the building to be vacated during the rainy season due to concerns over potential mold hazards, never a good thing for patients visiting the building.

We will be using a spray rack to water test the facade of the building in San Luis Obispo county this week. The facade features store front windows and a stone finish on the 4 year old building. Leaks can often hide in such situations and the building’s owners and its construction team that built the building hired us to assist in the leak investigation due to our history of expertise in leak investigations and building enclosure experience.

If your building is experiencing leaks, reach out to us to have a discussion on how we may be able to assist in determining the source and make recommendations for repairs. Our leak investigation experts are ready to assist! Call today 805-801-2380

While we were inspecting the roof, we found the roof drain sump pit clogged up with debris. We also found that the TPO roof has reverse laps that buck water flowing towards the drain.

“Structural Issues” Cause Bay Area Condo Building to Be Evacuated Until Temporary Shoring is Installed

UPDATE AS OF 3/19/26

We spoke with reporter Kevin Nguyen at the SF Standard regarding this property after he reached out to us asking about this property. We were the source that alerted Kevin to the fact that the picture below by  Anna Nevskaya showed failed post tension cables poking out from the building.

Turns out that post tension cables that support the podium deck slab have failed. I saw a review on Google by an owner at the property and knew instantly this building is F’d.

I’ll now predict that the slab can’t be fixed and the building will have to be demolished. What engineer in their right mind would believe that the other cables that aren’t broken are ok and just recommend repairs to the failed cables? No one in their right mind would in my opinion.

Post tension cables have broken in numerous places in one area as seen in this photo taken by Anna Nevskaya (and republished here for public knowledge.) The cause is unknown but is likely related to either damage caused by a massive fire that occurred during the construction, water damage or both.
Continue reading “Structural Issues” Cause Bay Area Condo Building to Be Evacuated Until Temporary Shoring is Installed →

A Video Message In Time To Help Keep Your Thanksgiving Safe!

Watch this quick video about using fire pits, turkey fryers and grills on combustible decks… To ruin the plot line, do not use turkey, fryers, fire pits or grills on any decks.

Please be safe this Thanksgiving holiday and don’t grill, use a fire pit or fry the turkey on your deck!

Signal Hill Condo Selects William Leys Waterproofing Consultants LLC To Coordinate Their SB 326 Inspection

  • Board Treasurer Says Our Detailed Proposal Stood Heads Above Competing Firms
  • Our Expertise & Guarantee That An Independent Structural Engineer Performs the Inspection Stands Out Over Other Firms

We’re happy to announce that we were selected to coordinate balcony inspections at a mid rise HOA in Signal Hill by the Board of Directors. Our detailed proposal and years of experience gave the Board of Directors the confidence that we were the best choice out of the five firms bidding.

Cantilevered Balcony at A Signal Hill Condo Association

We are so happy to hear strong praise like this as it reinforces our belief that we are one of the best qualified firms in the balcony inspection industry.  Our guarantee of no conflicts of interest, our guarantee that an independent structural engineer personally performs the inspection and that our 20+ years of prior experience in waterproofing as deck contractors is a deciding factor, along with competitive rates for Boards faced with enormous pressure to get in compliance with SB326’s requirements to inspect.

Let us show you why we are one of the best firms coordinating SB 326 inspections in the industry and let us earn your business with our professionalism and expertise. Get in touch today by calling 805-801-2380 and talk to Bill Leys with no obligation whatsoever.

Our best clients are educated clients!

Why You Should Hire William Leys Waterproofing Consultants LLC For Coordinating Your Balcony Inspections

Here’s why William Leys Waterproofing Consultants, LLC stands out as your best choice for coordinating lbalcony (SB-326) inspections:

What Makes Us the Ideal Choice

1. Strong Experience & Genuine Expertise

A deep background in waterproofing.
Bill Leys brings more than two decades of hands-on experience, beginning in 2003 as a waterproofing contractor and working for a leading engineering/architect firm- Allana Buick & Bers in Palo Alto.

2. Trusted
Bill has been a licensed deck waterproofing contractor since 2007, actively installing waterproof deck coatings across California for HOAs, apartment complexes, and residential projects. Hundreds of clients over the years have trusted Bill to waterproof their decks.

3. Extensive deck inspection history
Since 2007, Bill has conducted deck inspections for HOAs, apartments, and real estate transactions—bringing 17+ years of field knowledge to each inspection.

4.  Ethical Integrity & No Conflicts of Interest

5. Strict ethical standards
We guarantee in writing that there are no conflicts of interest—we do not bid on repair work, nor are we tied to any alternative revenue streams.

6. Transparent and fair bidding
Instead of pushing repair contracts, William Leys encourages clients to obtain three competitive bids, maintaining the free market and transparency.

7. Compliance with SB-326 Requirements

8. Engineer-led inspections
We require that an independent licensed structural engineer be physically present during inspections—this ensures full compliance with SB-326, which mandates a qualified professional conduct the inspections.

Supplemental waterproofing reports
While the structural engineer handles the official inspection and report, we provide a supplementary waterproofing report that is appended to the engineer’s sealed report—creating a comprehensive and technically rigorous report.

9. Comprehensive, Client-Focused Service

100% sampling on EEEs (Exterior Elevated Elements)
Unlike some providers meeting only minimum statistical thresholds, we inspect 100% of all categories (decks, stairs, walkways), delivering a thorough, confidence-building evaluation.

Specialized for HOA needs
Bill’s previous experience as a CMCA-certified HOA manager gives him insight into reserve studies, ongoing maintenance concerns, and association priorities.

Relevant geographic coverage
Serving a wide area—from Paso Robles to Bakersfield, Orange County, and Palm Springs—we’re locally accessible and familiar with regional building conditions.

Insurance and protection
We carry robust General Liability, Workers’ Compensation, and Errors & Omissions insurance—valuable safeguards for HOAs and associations.

10. Proven Reputation & Client Trust

Positive client feedback
One HOA manager shared:

“I’ve received high praise from the Board that they really respect your findings and knowledge of the inspection process.”

Trusted repeat selection
We’ve been chosen by multiple HOAs—such as in Santa Barbara and Palm Springs—because of our reliability, ethical stand, and expertise to coordinate SB 326 inspections.

In Summary

Experience & Expertise 20+ years in waterproofing, licensed, deeply technical
Ethical Integrity No repair bidding; transparent client-focused approach
SB-326 Compliance Engineer on site; dual-report method for structural and waterproofing insights
Thorough Service 100% EEE inspection; HOA management savvy; wide service area
Client Trust & Reputation Praised by HOAs; chosen repeatedly for key projects

In short, William Leys Waterproofing Consultants excel through their blend of deep technical knowledge, unwavering ethics, regulatory compliance, and client-centric service. They provide both peace of mind and exceptional quality—making them a standout choice for balcony inspections under SB-326.

Reach out today for a free quote on your inspection.

ASTM Standardized Water Testing Proves That Construction Defects Exist at a Condo in Los Angeles

William Leys Waterproofing Consultants LLC was recently retained by an upscale condominium complex in Los Angeles to investigate leaks from one recently repaired deck and stucco wall on one condo unit that was claimed to be leaking into an adjacent unit, causing damages to the home.

Using ASTM approved water testing methods, we set up a spray rack that sprays up to 2 hours of rain in a twenty minute period to mimic actual weather conditions.

A spray rack set up against the wall imitates rainfall against a building in an industry standard testing method. These racks are calibrated and tested to meet requirements under ASTM testing methods.

Using our methodical testing approach, we were able to prove that the wall shown in the photograph above was in fact leaking. Using litmus paper and visual observations during the methodical cyclic testing as prescribed by ASTM showed conclusively that the newly repaired wall was in fact leaking at four locations.

Continue reading ASTM Standardized Water Testing Proves That Construction Defects Exist at a Condo in Los Angeles →

You Gotta Read the Fine Print! HOA’s Need to be Careful of Companies Advertising “Free” or “20% Off” Type Offers on Balcony Inspections

Many companies are offering deals that have hidden motives behind them. Before buying, you need to know what it’s really going to end up costing your HOA.

William Leys Waterproofing Consultants LLC was recently contacted by a member of an HOA in Ventura County where that member had learned that his association’s Board of Directors were considering passing a special assessment in the range of 2 million dollars for repairs to balconies and stairs.

Information we got from the owner was that a large nationwide HOA reconstruction firm told the HOA that they had 13 emergency repairs and 300+ non emergency repairs to do and the budget was apx 2 million dollars for this work.

Continue reading You Gotta Read the Fine Print! HOA’s Need to be Careful of Companies Advertising “Free” or “20% Off” Type Offers on Balcony Inspections →

High Compliments From an HOA Client

It is always nice to get unsolicited compliments from our clients and the one that we received yesterday from Joseph in Los Angeles is very appreciated.

We try very hard to bring the best in service and stay on top of current trends in the industry to make sure our clients get the very best advice that we can give.

If your HOA needs help in coordinating SB 326 balcony inspections with licensed independent structural engineers, roof consulting or building envelope water intrusion issues, let me help you. Reach out today for a free discussion on what William Leys Waterproofing Consultants LLC can bring to the table in value for your community.

From an HOA client in Los Angeles, we sincerely appreciate the compliments!

How A Building Envelope Consultant Can Add Value to Your Residential Building Project

Long term leaks into this building has destroyed the framing behind the siding and because it is so rotted, the siding doesn’t have anything left to be attached.

As building envelope consultants we are often hired to determine where why and how a roof, siding or windows are leaking. After doing destructive testing and finding what caused the problem, it’s often an installer error that created the problem. Yes sometimes it’s defective waterproofing products, but that’s the exception, not the rule.

For architects and their home building clients, one way to ensure that the building envelope is going to perform correctly for it’s expected life span is to hire a waterproofing consultant to review the architects building envelope details, and to perform quality assurance inspections while the building is being dried in. Drying in a building entails roofs, below grade waterproofing, building paper over the plywood covered walls, window and door flashing for example. All of these need to be installed in a sequence to work together for the building to remain leak free.

Whether you are building tract homes, commercial/residential, condos or a spec home, a small add to the project budget to include a waterproofing consultant to assist in keeping your project leak free is a good investment. Consider the costs when a building does leak; there’s investigative costs, loss of use, possible mold claims, expensive repairs and everyone is aggravated.

William Leys Waterproofing Consultants LLC is here to help you with making your building project a success. Reach out today for a discussion on how we can help bring value to your project.

A Roofing Contractor Messes Up, William Leys Waterproofing Consultants LLC Helps Client Get It Fixed

A Low Slope Roof Installation Went Awry When The Contractor Deviated From The Manufacturers Installation Instructions

William Leys Waterproofing Consultants LLC Steps in to Assist The Building Owner Get the Work Corrected

A recent consult job that we had for a client who just had a new low slope roof installed on their building showed the reason that building owners should consider hiring a quality assurance inspector to ensure that the roof is installed right the first time and doesn’t have to be done over.

A client reached out to us who just had a new roof installed on their building. They had concerns about the workmanship and requested our assistance to inspect the job and document the problems with the installation. A low slope roof with a single ply TPO membrane had multiple issues with the installation.

As you can see from the photo gallery we found  numerous problems with the installation. We wrote a detailed report for the client who then was able to go to the contractor and ask them to make corrections to their work. The city building department refused to sign off on the permit for the roof because of the poor workmanship and the client threatened to complain to the Contractors State License Board if the contractor did not step up and replace and repair his poor work.

Continue reading A Roofing Contractor Messes Up, William Leys Waterproofing Consultants LLC Helps Client Get It Fixed →

Bill Leys Discusses SB 326

Watch this video where Bill Leys discusses some if the problems SB326 has and how Associations can protect themselves from the loopholes in the bill.

One of the first things to do when qualifying your balcony inspector is to ask if they own or are employed by any contractor, Waterproofing or general contractor… And if they answer yes… Well Bill has some advice for you and you’ll just have to watch to see what to do.

See what Bill has to say!