Waterproofing Contractors: Evaluation Criteria You Should Know

Written By Adam Paul - Waterproofing Expert

Waterproofing contractors are specialized professionals, skilled in the application of techniques and materials used to prevent water from penetrating and damaging structures. The main task of the waterproofing contractors are to evaluate the site condition, recommend the waterproofing solution, implement the solution and prevent future water problems in the warranty period.

Waterproofing contractors should have specific licenses and certifications according to their qualifications. They offer a 10-15 year warranty period for the project. They often have insurance to cover damages during the project.

Waterproofing contractors are of different types. Experienced and highly reputable waterproofing contractors offer incredible customer satisfaction to homeowners. Homeowners can find a good waterproofing contractor by using review websites, magazines, and programmes. Better communication with the waterproofing contractor helps to solve homeowners' problems.

The pricing of the waterproofing contractor is based on the job requirement, the condition of the job, and the requirement of the solution of the waterproofing need. Waterproofing contractors are different in type based on the specialized building envelope such as a bathroom, basement, deck and roof.

Waterproofing contractors use different types of materials and tools for their work. The duration of the waterproofing project can take about 3-25 days based on the complexity and condition of the project. They handle all kinds of debris in the project.

Bad waterproofing contractors can waste homeowners' time and money. Hence you should use a proper waterproofing contractor always for the waterproofing project.

Who Are the Waterproofing Contractors?

Waterproofing contractors are specialized professionals, skilled in the application of techniques and materials used to prevent water from penetrating and damaging structures. Waterproofing contractors are experts in identifying vulnerabilities in buildings, such as basements, roofs, walls, or foundations, and applying appropriate solutions to ensure long-term protection against water intrusion. Waterproofing contractors use waterproofing membranes, sealants, and drainage systems to the specific needs of each project.

The main tasks of waterproofing contractors are to evaluate site conditions, recommend the best waterproofing solutions, and implement those solutions with precision to prevent future water-related problems such as mold growth, structural weakening, and interior water damage. 

Before you start to work with waterproofing contractors this building waterproofing guide will help you to understand the everything about waterproofing.

What Are the Licenses, Qualifications and Certifications of Waterproofing Contractors?

Waterproofing contractors are typically required to hold specific licenses and certifications to operate legally and ensure quality workmanship. The essential licenses and certifications for a waterproofing contractor often include:

• General Contractor License
• Specialty Contractor License (specific to waterproofing)
• Occupational Safety and Health Administration (OSHA) Certification
• Bonding and Insurance Certification
• Manufacturer-specific Certifications (e.g., for specific waterproofing products)

To get a waterproofing license or certificate to do waterproofing one of the below qualifications are required.

• CPC31420 (current) Certificate III in Construction Waterproofing
• CPC31411 / CPC31408 Certificate III in Construction Waterproofing
• BCG31403 Certificate III in Waterproofing (General Construction)
• Qualification 90464 Certificate III in General Construction (Waterproofing) TAFE course #8126.

In addition to these essential credentials, some waterproofing contractors may also pursue special certifications that demonstrate advanced expertise in the field. These can include:

• Certified Waterproofing Professional (CWP)
• Certified Structural Waterproofing Specialist (CSWS)
• International Concrete Repair Institute (ICRI) Certification
• National Association of Waterproofing and Structural Repair Contractors (NAWSRC) Certification
• Basement Health Association (BHA)

What is the Warranty Period Offered by the Waterproofing Contractor?

The waterproofing warranty period is a duration that is offered by the waterproofing contractor to guarantee the effectiveness of their waterproofing work. During this period, if any issues arise due to defects in workmanship or materials, the contractor is typically obligated to address and rectify the problem at no additional cost to the client. The length of the warranty period is typically 10 years and it depends on the type of work performed, the materials used, and the contractor's policies.

Waterproofing warranties are mainly two types: Labor Warranty and Material Warranty. The labor warranty covers issues related to the installation process, ensuring that the work was done correctly. The material warranty, on the other hand, covers the products used in the waterproofing process, guaranteeing that they will perform as expected. In some cases, contractors may offer a combined warranty that covers both labor and materials, providing comprehensive protection for the client.

What is the Insurance Coverage of a Waterproofing Contractor?

Waterproofing insurance coverage is the protection a homeowner receives through a contractor's insurance policy, which covers damages or issues arising from the waterproofing work. This insurance is important for homeowners as it safeguards them against potential liabilities, such as property damage or accidents that may occur during the project. 

What Are the 8 Types of Waterproofing Contractors?

These are the 8 types of waterproofing contractors.

1. Basement Waterproofing Contractors
2. Deck Waterproofing Contractors
3. Roof Waterproofing Contractors
4. Foundation Waterproofing Contractors
5. Exterior Waterproofing Contractors
6. Interior Waterproofing Contractors
7. Crawl Space Waterproofing Contractors
8. Concrete Waterproofing Contractors

What Experience Need for Waterproofing Contractors?

Waterproofing contractors need experience knowledge and skills to identify and solve complex water intrusion issues effectively. Experience waterproofing contractors provide reliable solutions, prevent future problems, and deliver high-quality workmanship. At least the waterproofing contractor should have more than 5 years of experience in the specific field. 

To determine the experience of the waterproofing contractors, homeowners can look for reviews in local newspapers, check online platforms like Angie's List or Yelp, and watch specialized TV programs like This Old House, which often feature expert contractors and their work.

What is the Reputation of Waterproofing Contractor?

The reputation of a waterproofing contractor is critical to the success of any waterproofing project, as it reflects their reliability, quality of work, and customer satisfaction.

To determine the reputation of the waterproofing contractor homeowners can check online reviews, consult the Better Business Bureau (BBB), request references for previous work, check their portfolio, verify certificates and awards, and seek recommendations.

How to Find Customer Reviews of Waterproofing Contractors?

To find customer reviews of waterproofing contractors, you can check the following sources:

1. Google Reviews
2. Yelp
3. Angie's List
4. Better Business Bureau (BBB)
5. HomeAdvisor
6. Trustpilot

Read more: Everdry Waterproofing Reviews: Company, Rating, Review and Complaints

How to Communicate With Waterproofing Contractors?

You should follow these 7 steps to communicate with waterproofing contractors.

1. Contact the waterproofing contractor via call or e-mail
2. Request a consultation on the site and understand the project requirement
3. Request a detailed written proposal and cost estimation for the work
4. Review the proposal and clarify any questions regarding the waterproofing project
5. Sign a formal contract including terms, project details, warranty and payment
6. Communicate regularly with the contractor about the progress and inform any concern
7. Inspect the project once it is completed to ensure it meets your requirements and the terms of the contract.

How are Pricing and Estimates Made by Waterproofing Contractors?

Pricing and estimates for waterproofing projects are typically prepared based on a detailed assessment of the job requirements, including the size and condition of the area to be treated, the type of waterproofing solution needed, and any specific site challenges. 

Contractors often use a combination of material costs, labor charges, and overhead expenses to determine the total cost of each task. 

What Materials Used by the Waterproofing Contractors?

Waterproofing contractors use the materials and tools for their projects.

1. Liquid Waterproofing Membranes: Acrylic waterproofing, Polymer waterproofing, Bituminous waterproofing, Cementitious waterproofing, Epoxy waterproofing, Liquid rubber, Elastomeric coating
2. Sheet Waterproofing Membranes: PVC waterproofing, EPDM waterproofing, HDPE waterproofing, TPO waterproofing, Modified bitumen waterproofing, and Self-adhesive waterproofing systems.
3. Sealants and Caulks
4. Waterproofing Paints
5. Drainage Boards
6. Excavation tools: Excavators, Auger, Electric hammers, Shovel 
7. Brushes and Sprays
8. Safety tools
9. Measuring and leveling tool
10. Vehicles

Read More: 6 Best Waterproofing Brands All Time

What is the Project Timeline of a Waterproofing Contractor?

The project timeline of a waterproofing contactor for a project can vary based on the scope and complexity of the work. The duration of the waterproofing project can vary between 3-25 days. As an example minor basement waterproofing or deck sealing might be finished in under a week, while more extensive work, such as foundation waterproofing or large-scale roof treatments, could take several weeks.

The project timeline depends on the size of the area, the type of waterproofing system, and weather conditions. 

Waterproofing projects can be delayed due to factors such as unforeseen structural issues, adverse weather, delays in material delivery, and the need for additional repairs or adjustments. 

Do Waterproofing Contractors Dispose of the Debris?

Yes, waterproofing contractors typically handle the disposal of debris generated during the project. But it should be confirmed before starting the project. 

This includes removing and disposing of old materials, packaging, and any other waste created as a result of the waterproofing work. Ensuring proper disposal is part of their responsibility to maintain a clean and safe work environment. 

How to Identify Bad Waterproofing Contractors?

A bad waterproofing contractor can be identified by the below behavours

1. Neglect problems through site inspections and fails to provide detailed, written estimates or contracts. 
2. Offer significantly lower bids compared to competitors, which can indicate a lack of experience or use of subpar materials. 
3. Do not provide valid licenses or insurance, leaving homeowners at risk for liability and poor workmanship.
4. Has poor communication habits, such as being unresponsive to inquiries, providing vague answers, or failing to follow through on promises. 
5. They may show disorganization by arriving late or failing to keep the work area tidy, which can lead to unsafe conditions.
6.  Lack of transparency regarding the project's progress or unexpected changes in cost, indicating potential dishonesty or a lack of professionalism.

How to Become a Waterproofing Contractor?

If you need to become a waterproofing contractor you should follow the below guidance.

1. Gain relevant education about waterproofing, construction, labor handling, and house remodelling
2. Acquire experience under an expert in the waterproofing industry
3. Obtain the necessary waterproofing qualification to get license and certificates
4. Obtain appropriate insurance coverage for the waterproofing business 
5. Start a waterproofing business obtain necessary permits
6. Build a relationship with suppliers, manufacturers, and other industry professionals to ensure access to quality waterproofing materials and support
7. Promote the waterproofing business through various channels and sources