What should I know about adding a sump pump and drainage system to an existing home in St. Louis?

• Protects your home from flooding: Adding a sump pump and drainage system to an existing home in St. Louis prevents groundwater from seeping into basements and crawlspaces.
• Addresses existing foundation issues: Many older homes in St. Louis were not built with modern waterproofing systems. A sump pump retrofit helps relieve hydrostatic pressure and reduce foundation movement.
• Reduces mold and mildew: A proper drainage system controls moisture, improving air quality and reducing the risk of mold growth.
• Improves long-term property value: Preventing water damage protects your home’s structure and increases resale appeal.
• Professionally installed by local experts: Waterproof Solutions has decades of experience adding sump pumps and drainage systems to existing homes in St. Louis, ensuring your system is properly designed, installed, and maintained.

Adding a Sump Pump and Drainage System to an Existing Home in St. Louis

In St. Louis, rain isn’t just a seasonal inconvenience—it’s a structural challenge. Between spring downpours, heavy summer storms, and winter snowmelt, many older homes struggle to keep their basements dry. That’s why adding a sump pump and drainage system to an existing home in St. Louis is one of the smartest upgrades you can make to protect your investment.

The team at Waterproof Solutions has seen it all—cracked foundations, standing water, mold, and musty smells. In this video, Stephen Burton walks viewers through a home without an interior drainage system in a finished basement and explains how they will address the homeowner's leaking basement. Fortunately, they’ve caught the issues early enough that they will be able to make the changes to the home without taking apart the entire finished basement. His message is clear: prevention is far less costly than repair.

Let’s look at why these systems matter, what installation involves, and how Waterproof Solutions ensures your basement stays dry year-round.

Why Do Basements Leak?

Primary culprit: Hydrostatic Pressure

When the ground around your home becomes saturated, water exerts pressure on your foundation walls. This force—known as hydrostatic pressure—is one of the leading causes of basement leaks and cracks. Over time, this pressure can force water through even the smallest openings, causing damage to walls, floors, and insulation.

Older Homes Often Lack Modern Drainage

Many homes in St. Louis were built decades ago, long before today’s waterproofing methods existed. Without interior drain tile or exterior drainage, these homes depend on gravity and luck to stay dry. Unfortunately, one heavy storm can be enough to overwhelm old systems or expose vulnerabilities you didn’t even know you had.

That’s where adding a sump pump and drainage system becomes a game-changer. The logic behind science pumps is simple. It captures water before it becomes a problem and redirects it safely away from your foundation.

When Does  Adding a Sump Pump to an existing home in St. Louis  Make Sense? And how do We Do It? 

Step 1: Assessing the Problem

Waterproof Solutions starts with a comprehensive inspection. Their team looks for signs like wall cracks, efflorescence (white mineral deposits), musty odors, or pooling water. They also evaluate your yard’s slope, gutter performance, and any exterior grading issues.

Step 2: Cutting the Trench

Once the problem areas are mapped, the crew removes a narrow strip of concrete around the basement’s perimeter to create a trench. This trench will hold the interior drainage system—a perforated pipe surrounded by gravel that captures water and directs it toward the sump pit.

As shown in the video demonstration, Waterproof Solutions takes great care to keep the repair as simple as possible, keeping the workspace clean even in finished or partially finished basements.

Step 3: Installing the Sump Pump

At the lowest point of your basement, a sump pit is installed. The sump pump sits in this pit and automatically activates when water collects. It then pumps the water through a discharge line, directing it outside and away from your home’s foundation.

Modern sump pumps come with advanced features like backup batteries or water-powered pumps, ensuring protection even during a power outage—something every St. Louis homeowner should consider.

Step 4: Finishing the Floor

After the drainage piping and sump pump are installed, the concrete is replaced and smoothed over. Once dry, you won’t even notice where the work was done.

Why Does a Professional Installation Matter So Much?

DIY vs. Professional Work

Some homeowners attempt to add their own sump pump, but without a properly designed drainage system, you may only be treating the symptom, not the cause. Waterproof Solutions ensures that every element—from slope to pump capacity—is tailored to your home’s needs.

Their licensed technicians also check for other contributing factors, like clogged downspouts or improperly sloped landscaping, which can redirect water back toward the foundation.

1. What are the Benefits of a Sump Pump and Drainage System?

Prevents Basement Flooding. Even a small storm can cause big problems if your home doesn’t have proper drainage. A sump pump ensures that any water entering the system is quickly removed before it can pool or seep into your flooring and drywall.

2. Protects Structural Integrity

Water is one of the most destructive forces in a home. By relieving hydrostatic pressure, a drainage system helps prevent cracks, shifting walls, and foundation movement.

3. Improves Air Quality and Comfort

Moisture control is key to preventing mold growth and musty odors. A dry basement also helps your HVAC system run more efficiently and keeps the rest of your home more comfortable.

4. Increases Resale Value

A professionally installed sump pump and drainage system add peace of mind for potential buyers. When they see a system by Waterproof Solutions, they know the home has been protected the right way.

When Should You Call Waterproof Solutions? 

Signs You Might Need a Drainage System

• You see water pooling near the basement walls after a heavy rain.
• There’s a musty or damp smell in your basement or crawl space.
• You notice a white, chalky residue on the basement walls.
• Floors are uneven, cracked, or separating from the walls.
• Your sump pump runs constantly—or not at all.

If any of this sounds familiar, it’s time for a professional inspection.

The Waterproof Solutions Difference

Waterproof Solutions doesn’t just install sump pumps—it provides complete water management systems. Their approach combines expertise in hydrostatic pressure control, foundation repair, and soil movement prevention.

With decades of experience in the St. Louis region, their crew understands the area’s unique soil types and weather patterns. That local knowledge helps them design drainage systems that last and perform in every season.

Protecting St. Louis Homes—One Basement at a Time

Adding a sump pump and drainage system to an existing home in St. Louis isn’t just about keeping water out—it’s about protecting your most significant investment. From historic homes in Soulard to newer builds in Chesterfield, Waterproof Solutions provides tailored solutions for every property type, whether you need a sump pump in your basement,

Their team combines decades of experience, proven technology, and a genuine passion for helping homeowners protect what matters most.

Whether you’re considering adding a sump pump and drainage system to your existing home in St. Louis, or suspect you need a crack repaired in your foundation or basement, or your basement piered, don’t wait until it gets worse to contact Waterproof Solutions. We will come out, conduct a comprehensive foundation and drainage inspection, and discuss your options.