When it comes to waterproofing, you have two main options: hiring a professional or doing it yourself. Each approach has its own advantages and is suited to different situations. Professionals bring wide-ranging expertise and quality guarantees, making them ideal for complex or large-scale jobs. On the other hand, a DIY solution can be quicker and more budget-friendly for smaller, manageable tasks.

But how do you know which route is right for you? This guide will cover when it makes sense to roll up your sleeves and tackle the job yourself versus when it's worth calling in the experts.

When to DIY

1. Liquid Waterproofing

Liquid waterproofing products, like our Liquid Membrane™, are developed with DIY waterproofing in mind. They’re easy to apply, don’t require specialised tools, and deliver professional-grade results. Whether you’re sealing a balcony, roof, or bathroom, liquid waterproofing provides a seamless, flexible barrier that’s perfect for quick, efficient applications. It’s an ideal choice for those looking for a hassle-free waterproofing solution they can tackle themselves.

2. The Job is Simple and Straightforward

Most home owners find they can handle smaller tasks without professional intervention. If you’re dealing with minor issues like sealing a little crack or applying a waterproof finish coat to a single surface, DIY waterproofing is a cost-effective and manageable option.

3. You're on a Tight Budget

DIY waterproofing can save you money, especially for less complex projects. Instead of paying for labour costs, you can invest in high-quality products like Liquid Membrane™ and handle the work yourself, ensuring maximum value for your efforts.

4. You Need a Quick Fix

Sometimes time is of the essence, and calling a professional might mean waiting — especially in periods of high demand such as wet seasons. One of the best things about the SEMCO Liquid Membrane™ is that it’s applied in just one day thanks to its incredibly fast drying time, making it perfect for those who need results ASAP.

When to Hire a Pro

1. You're Dealing with Significant Water Damage

While minor leaks can be handled with DIY repairs and little trades experience, large-scale damage can require professional attention — as this can compromise your building’s structural integrity and safety. Signs of significant water damage include widespread mould, warped or buckled flooring, sagging ceilings, visible puddles, and foundation cracks.

A waterproofing expert can assess the extent of damage and apply the best solution, as well as advise if there are more comprehensive works that may be required beyond waterproofing.

2. You’re Building from Scratch

Whether you’re renovating an older home or constructing a new building, waterproofing should be a priority in your plans. Liquid Membrane™ is more commonly used in DIY projects where renovations or repairs are concerned. For new builds, it’s more common to hire a professional. Experts can help incorporate waterproofing into the foundation, walls, and floors right from the beginning, ensuring protection from the start. This is particularly crucial for areas like basements, foundations, and external walls.

3. Local Codes or Regulations Require Professional Work

In some areas, local building codes and regulations may require waterproofing to be performed by licensed professionals. This is especially common when working on larger or commercial properties. To ensure that your project meets all legal requirements, it’s wise to consult with a professional who is familiar with these standards.

4. You Want a Warranty for Peace of Mind

Professional waterproofing services often come with warranties, providing you with peace of mind that the job will be done correctly and that any potential issues will be handled under warranty terms. This can save you from costly repairs down the line if something goes wrong with your DIY solution. However, at SEMCO Works we offer a 5-year standard limited warranty (10 years for non-traffic surfaces) on Liquid Membrane™ purchases.

5. When Waterproofing is Part of a Larger Issue

If the source of your water problems is more complex than sealing a crack — such as a damaged foundation, poor drainage, or faulty pipes — hiring a professional is crucial. They can identify the root cause of the issue and provide a more permanent fix, in some cases connecting you with a plumber, builder, or other tradesperson with relevant specialised knowledge.

Conclusion

Deciding whether to hire a professional or take the DIY route for waterproofing depends on your project’s complexity, budget, and personal preferences. For large-scale issues involving structural damage, new builds, or commercial jobs, bringing in an expert might be the safest choice.

On the other hand, DIY waterproofing is a fantastic option for smaller, straightforward jobs or when time is a key factor. With user-friendly products like Liquid Membrane™, you can achieve effective results in just one day, saving both time and money.

Ultimately, the right choice depends on your confidence, the scope of the work, and the resources available. Whichever path you choose, prioritising waterproofing is essential to protecting your property.