How To Choose The Right Waterproofing Contractor Services

Waterproofing contractors are a fairly critical component when it comes to protecting buildings from water ingress. Whether it’s a basement waterproofing job, structural waterproofing, or a commercial waterproofing system, hiring a specialist waterproofing contractor ensures a watertight solution that meets industry standards like the essential BS8102.

It’s no secret that having a good understanding of the types of waterproofing, the importance of proper installation and what to look for in a qualified contractor will get you a long way. Read on if you want to avoid any leaks, damp or structural damage in your future waterproofing project.

Types of Waterproofing Systems

‍There are a few variables that need to be considered while choosing the right waterproofing system. The specialists will take into account the structure, location, and level of water exposure. A waterproofing contractor, like APP, will assess the building and recommend the best approach.

1. Structural Waterproofing (BS8102:2022 Standard)

A must for basements, underground structures, and foundations, this involves:

• Type A (Barrier Protection): Uses membranes or coatings to block water
• Type B (Structural Protection): Integrates waterproofing into the building structure
• Type C (Drained Protection): Uses drainage systems to manage water ingress

2. Basement Waterproofing

A basement waterproofing specialist will design a waterproofing system that ensures a dry, habitable space. This may include:

• Cavity drainage systems
• Tanking solutions
• Damp proof membranes

3. Commercial and Industrial Waterproofing

Larger buildings need cost-effective waterproofing solutions, such as:

• Liquid waterproofing membranes
• Roof coatings and sealants
• Industrial tanking systems

What To Look For in a Waterproofing Contractor

Not all waterproofing contractors are built equal. Some cut corners, while others specialise in structural waterproofing solutions that meet BS8102:2022 standards. You’ll need to look past price and ask about experience, workmanship, and long-term protection.

Industry Experience and Certifications

It’s a no-brainer that you’ll want a contractor that knows what they’re doing. Unfortunately, this isn’t always the case. A company with years of experience will understand how to handle complex waterproofing projects. Ask about their knowledge, specifically about basement conversions, french drains, or industrial tanking. The best waterproofing specialists follow strict industry standards, ensuring every project meets BS8102:2022 guidelines.

Certifications matter. A contractor should be partnered with the leading manufacturers such as Newton or Delta Membranes. This means they’re using high-quality waterproofing systems and have been trained in proper application techniques. Ask about CSSW qualifications (Certified Surveyor in Structural Waterproofing) or any accreditations from industry bodies.

Proven Track Record in Waterproofing Projects

A reliable contractor should be able to back up their claims with real results. Look for case studies of previous projects similar to yours. If you’re waterproofing a basement, find a specialist with experience in structural waterproofing rather than someone who primarily works on roof coatings.

Testimonials and reviews give you insight into their workmanship. Were past customers satisfied? Did they have to deal with leaks, damp, or costly repairs later on? A good waterproofing contractor stands by their work and offers guarantees for long-term protection.

Insurance and Design Liability

If something goes wrong, you don’t want to be left with the bill. A professional waterproofing contractor should have the right insurance cover to protect your property and the work they carry out. Ask if they offer design liability—this ensures that if there’s a failure due to improper design, the contractor takes responsibility.

Waterproofing is an investment. You want a specialist who takes full responsibility for their work, from the initial design to the final installation. If they hesitate when you ask about insurance or liability, consider it a red flag.

Cost and Budget Planning

The cheapest quote isn’t always the best option. A waterproofing contractor should provide a clear breakdown of costs, so you know exactly what you’re paying for. Watch out for hidden fees—some companies offer low initial quotes but charge extra for things like drainage systems, sealants, or additional repairs.

A good contractor will work with you to find a cost-effective waterproofing system that fits your budget without compromising on quality. If a quote seems too good to be true, it probably is. Look for a contractor who offers warranties on both materials and labour, giving you confidence that their work will last.

Choosing the right waterproofing contractor isn’t just about price—it’s about expertise, reliability, and a guarantee that your property stays watertight for years to come.