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7 Ways to Stop Bouncy Floors

sagging bouncy floors in house

Picture this: You’re walking across your living room, coffee in hand, when you feel it—an unexpected bounce underfoot. No, your home hasn’t turned into a funhouse. You’re experiencing a common but often overlooked issue: bouncy floors. The good news? Bouncy floor repair is possible.

We’ve created this guide to help you understand why your floors feel unstable and how to restore them. Here are seven proven solutions on how to fix bouncy floors in your house.

What Causes Bouncy Floors?

Bouncy floors aren’t a problem; they’re a symptom most likely caused by excessive moisture beneath your home. Crawl space moisture is the leading cause of mold growth, wood rot, and pest infestations. As these problems persist, they deteriorate the floor joists supporting your home. This deterioration causes sagging bouncy floors. 

Every problem has a solution, and we’re here to help you stand on solid ground again.

How to Fix Bouncy Floors

Does the floor feel uneven when walking across it? Here are seven effective ways to fix bouncy floors in your home:

1. Crawl Space Support Jacks

crawl space jacks

When floor joists fail, crawl space support jacks provide a solid foundation by evenly distributing your home’s weight. Support jacks eliminate unwanted bounce by stabilizing damaged beams and floor joists with their adjustable feature. Groundworks installs the SettleStop IntelliJack™ system, providing reliable support with over 24,000 pounds per jack capacity.

Crawl space jacks are tested and certified to the highest industry standards, upholding your home’s weight with incredible strength.

2. Crawl Space Vapor Barrier

crawl space vapor barrier installation

Crawl spaces are uncontrolled and often damp environments, with nothing separating your indoor floors from the moisture below—that’s where our 20-mil polyethylene CrawlSeal™ vapor barrier comes in. The waterproof protective shield blocks groundwater and humidity, preventing moisture while improving the area’s aesthetics.

By preventing the upward movement of moisture (known as the stack effect), the vapor barrier prevents warm, humid air from reaching your indoor floors and supporting structures, ensuring they remain bounce-free.

3. Crawl Space Dehumidifier

crawl space dehumidifier

Bouncy floors in your house often signal crawl space moisture, meaning high humidity beneath your home and floors. We install our AquaStop crawl space dehumidifier to handle this moisture.  

According to the US Environmental Protection Agency (EPA), maintaining a relative humidity level under 60 percent is ideal. This lower moisture also helps prevent mold growth, pest infestations, and damaged floor joists.

The AquaStop Air System removes up to 100 pints of moisture daily, and its self-draining design means you never have to venture beneath your home to empty it. Moisture removal is often the most effective way to fix bouncy floors in house spaces.

4. Crawl Space Vent Doors

exterior view of crawl space vents

Regulating airflow is vital for keeping your crawl space and floors dry and sturdy. It was once believed that crawl space vents promoted adequate airflow, creating a cool and controlled environment. However, the opposite proved true. These vents actually allowed humid air inside the crawl space, increasing moisture problems. 

Now, sealing crawl space vents is one of the best ways to reduce moisture, and our crawl space vent doors are designed for this purpose.

By limiting outdoor humidity, these doors prevent moisture buildup that can lead to bouncy floors in your house. When combined with other crawl space solutions, they help maintain a well-controlled environment beneath your home, making bouncy floor repair more effective.

5. Crawl Space Insulation

crawl space insulation installation

Our crawl space insulation does double duty by keeping your floors firm and your feet warm. Unlike traditional fiberglass insulation, we use our patented ExtremeBloc™ insulation, which is better suited for crawl spaces.

Our insulation reflects heat from conduction, convection, and radiation thanks to its low thermal conductivity. In other words, it keeps heat where it belongs. With an impressive R-value of 11, it provides superior resistance to heat flow.

Beyond energy efficiency, ExtremeBloc™ also has built-in protection against termites and pests. By preventing energy loss and moisture intrusion it helps prevent bouncy floors in your house.

6. Perimeter Drains and Sump Pumps

crawl space drainage

Our drainage systems and sump pumps protect your floors by preventing excess water damage. Groundworks installs crawl space drains with a specialized filtering exterior to keep out rocks, dirt, and debris, reducing the risk of clogs.

Meanwhile, a sump pump detects water in a designated sump pit and automatically pumps it away from your home. Optional backup batteries help by keeping them operational during power outages.

Together, these systems divert groundwater from the crawl space area, preventing moisture and making bouncy floor repair possible.

7. Contact a Crawl Space Professional

Groundworks CFI inspector

When in doubt, call Groundworks. Our crawl space professionals offer free inspections to diagnose the cause of your home’s bouncy floors and recommend the best solution.  

We’ve helped millions of homeowners across the U.S. repair and prevent crawl space issues. Let us help you, too.

Stop Bouncy Floors in Your House

Encapsulated crawl space with intellijacks.

Life has its ups and downs, but your floors shouldn’t. Groundworks’ solutions work together in a comprehensive system called crawl space encapsulation. With industry-leading tools and expertise, we ensure a seamless installation for your home.

Our team is committed to making your home as safe, comfortable, and functional as possible with local service areas across the country. Enjoy firm, steady floors, and leave the bounce behind. Contact us today! 

Bouncy Floors FAQs

While a bouncing floor may seem like an added feature straight out of a theme park, it’s not something to be ignored or taken lightly. Excessive bounce can be a sign of structural issues, and those could snowball into bigger issues like wall cracks, wood rot, or a collapsed floor. Always consult a professional if you’re unsure. 

Many factors can contribute to a floor’s bounce. It could be anything from issues with joists and support beams to excessive moisture in your crawl space. Every situation is unique, so diagnosing the correct cause is crucial. 

While some solutions can be a DIY project, often it’s best to consult with a professional. Addressing bouncy floors involves complex home repair tasks. Our team at Groundworks is always ready to lend a hand with our crawl space solutions

Ted Dryce

Ted Dryce

Content Writer

Ted is an SEO Content Writer who has been with Groundworks since 2021. He’s covered home repair topics ranging from crawl space encapsulation to regional soil conditions. When he’s not working, Ted is performing improv comedy and working on his own creative projects.

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