Windows are something we use every single day in our homes. But they can be a real headache when it comes to window screens. If you’ve ever had a standard window screen, you know exactly how annoying it can be. They are stiff and easy to bend. One small mistake when installing or removing them and suddenly, the frame is bent forever. Even worse, sometimes the mesh tears apart.
Once that happens, bugs and dirt start coming into the house. Then you are left either paying to fix it or replacing the entire screen. Many people have gone through this struggle more than once. It wastes money and time. People just want a screen that does its job without being so fragile. They want something easy to handle and tough enough to last.
Joe Altieri, who worked in the window industry for over twenty years, saw this problem over and over. He was tired of seeing people get frustrated and waste money on bent and broken screens. He decided there had to be a better way. So he started working in his garage, trying different ideas to build a window screen that could bend but not break.
His goal was to create a flexible screen that homeowners could install and remove without worrying about ruining the frame. That’s when Flexscreen was born. Flexscreen uses a special flexible frame that allows it to bend during installation. This makes it easier for anyone to pop it in and out of a window.
Joe believed his invention would change how people think about window screens. He went to Shark Tank Season 11 to share his idea and get the help he needed to bring Flexscreen to more homes. Would the sharks see the same opportunity he did? That’s what the episode set out to show.
Flexscreen Net Worth Shark Tank Update 2025
Joe was looking for an investment of $800k in exchange for 6% equity in the company. At the time of the episode, he valued his company at $13.3 million. Joe successfully secured a deal with Lori for an investment of $400k cash plus a $400k line of credit for 50% of the new retail division. The investment adjusted the company’s net worth to around $1.6 million. After the show was aired, the company experienced a good boost in exposure. As per my rough estimate, the current net worth of Flexscreen is around $40 million.
| Shark(s) name | Offer & Demand | Counteroffer | Accepted? |
| Lori Greiner | $400,000 cash + $400,000 line of credit for 36 months with 6% interest for 10% equity | $400,000 cash + $400,000 line of credit for 50% of new retail | Yes |
| Barbara Corcoran | $400,000 cash + $400,000 line of credit for 50% retail | N/A | No |
| Kevin O’Leary | $800,000 for 20% equity contingent on a deal with a big window manufacturer | N/A | No |
| Robert Herjavec | Out | N/A | No |
| Mark Cuban | Out | N/A | No |
Joe Altieri Backstory + Their Initial Pitch
Joe Altieri spent two decades in the window business. Every day, he saw the same issue repeat itself. Customers and window installers alike were frustrated by how easy it was to damage traditional aluminum window screens. Once bent, these screens would never fit right again. Joe realized this problem wasn’t small. It affected millions of homeowners who had to replace screens more often than they should.
This led him to experiment with new designs in his garage. He wanted something that could flex under pressure but snap right back into shape. After a lot of trial and error, he created the Flexscreen. This new type of screen used a flexible steel frame covered in a protective coating. It was strong but could bend when needed.
When Joe stepped onto the Shark Tank stage, he looked confident. He shared his story about why he started Flexscreen and what made it different. He explained that, unlike stiff aluminum frames, Flexscreen’s frame could bend without damage. He even demonstrated by bending a Flexscreen in his hands and popping it back into place. The sharks were amazed at how easily it could move without breaking.
Joe shared that he had already made $5.1 million in sales the previous year. But he also admitted his profits were low because of tight margins. He only made about $40,000 in profit despite all those sales. His goal was to ask for $800,000 in exchange for 6% equity in his company. Joe wanted to use the money to expand his production and improve his distribution to window manufacturers.
Joe explained that each Flexscreen was custom-made to fit specific window sizes. This surprised some of the sharks, who thought custom sizes might be more expensive or complicated. But Joe reassured them that almost all window screens are already custom-fit, and Flexscreen made this process easier. The sharks were impressed with the product but worried about the business model. Joe’s pitch was strong, but he needed to answer tough questions before any deals could happen.
Queries + Sharks’ Responses, and Final Deal
Kevin O’Leary was the first to dig deep into the numbers. He wanted to know how Joe planned to make more money if the profit margins were already so thin. Joe explained he was trying to sell directly to window manufacturers, but they were unwilling to pay more for better screens. Kevin was concerned because that meant Joe had to convince big companies to spend more when they did not want to.
Kevin’s solution was a licensing deal with a major manufacturer. He offered Joe $800,000 as a loan at 9% interest in exchange for 6% equity. But Kevin’s idea depended on landing a massive licensing deal, which was risky.
Robert Herjavec then jumped in with his own concerns. He asked how Joe planned to get window manufacturers to agree to use Flexscreens. Joe said he was working on building relationships but had not locked in any big contracts yet. Robert worried that window companies would not want to change their standard processes or pay extra for better screens. He said it looked like a tough road ahead and decided to drop out.
Barbara Corcoran was next. She liked the product and thought it solved a real problem. But she also wanted to take a different approach. Instead of selling to manufacturers, she suggested creating a new business focused on selling standard-sized Flexscreens directly to customers. She offered $400,000 in cash and a $400,000 line of credit for 50% equity in this new retail-focused business.
Barbara thought that selling directly to homeowners would avoid the headache of convincing big companies to change.
Lori Greiner listened carefully. She knew the challenges of selling hardware and saw potential in Joe’s invention. She believed she could help Joe bring Flexscreen directly to retail and reach more homeowners. Lori made an offer similar to Barbara’s: $400,000 in cash and a $400,000 line of credit, but she matched Barbara’s terms with 50% equity in the new retail side of the business.
Joe was impressed by Lori’s experience in selling products on TV and in major retail stores. After a tense few minutes, Joe decided to accept Lori’s offer. He thought she had the right connections to make Flexscreen a success in retail. Mark Cuban had not made an offer, as he said he wasn’t a “window guy” and did not see himself adding value.
Product Availability
Flexscreen is now available in many places thanks to Joe’s partnership with Lori. Homeowners can buy Flexscreens directly from the company’s website, flexscreen.com, where they can order custom screens to fit their windows perfectly. The screens come in different sizes and colors to match any home’s style. Flexscreens are built to be tough, with a flexible steel frame coated in PVC, so they won’t rust or corrode.
The frame can bend during installation or removal, which prevents permanent damage. This feature makes Flexscreen very different from traditional aluminum screens that bend easily and break.
Flexscreens are also sold in retail stores like Home Depot, which helps homeowners buy them locally without waiting for shipping. On Home Depot’s website, you can find standard Flexscreens for common window sizes, making it easy to upgrade your windows without special orders. Prices vary depending on size, but they are competitive with other high-quality window screens.
Having Flexscreen in retail stores is a big win because it allows customers to see the product in person before buying. Flexscreen has also expanded its partnerships with window manufacturers, licensing the design so new windows can come with Flexscreen installed from the start. This makes it easier for homeowners to enjoy flexible screens without extra effort.
What Happened To Flexscreen After Shark Tank?
After Joe made a deal with Lori on Shark Tank, Flexscreen’s business took off. Lori helped Flexscreen connect with major retailers and expand their customer base. Sales grew quickly, and the company’s annual revenue increased to over $30 million by 2022. Flexscreen began licensing agreements with large window manufacturers. This allowed new windows to be sold with Flexscreens already included.
This was exactly what Joe wanted when he first dreamed of Flexscreen. It showed manufacturers the value of his product and gave homeowners a better window screen from the start.
Flexscreen has also increased its production capabilities. They opened new manufacturing facilities in multiple states, which has helped them meet growing demand. Their social media pages and website show many happy customers who love how easy it is to install and use Flexscreens. Reviews praise the durability and convenience of the product. As of 2024, Flexscreen is still going strong.
The company continues to innovate, and they are looking for ways to make screens even better. Joe and Lori’s partnership turned out to be a perfect match. Together, they proved that a simple solution to an everyday problem can become a huge success with the right support.
Conclusion
Flexscreen started with Joe Altieri’s frustration over bent, broken window screens. His solution was a flexible screen that made life easier for millions of homeowners. When he stepped into Shark Tank, he showed the sharks a product that impressed everyone. Although the business had some challenges, especially with convincing window manufacturers to adopt Flexscreen, Joe kept pushing forward.
He listened to the sharks’ advice and found a new path by selling directly to homeowners. Lori Greiner saw the product’s potential and offered a deal that Joe accepted.
Since then, Flexscreen has grown into a thriving business with sales of over $30 million a year. You can now buy Flexscreens online or in stores like Home Depot. Joe’s journey shows how important it is to stay flexible, just like his screens. By adapting his strategy and working with a great partner, he turned his invention into a successful company.
Flexscreen’s story on Shark Tank proves that solving simple, everyday problems can lead to big wins when you have the right idea and people behind you.

Hey, I’m Amna Habib, an undergraduate student pursuing a Bachelor’s in Business Administration. Shark Tank has always been one of my favorite TV shows because it offers a unique glimpse into the world of entrepreneurship. The way entrepreneurs present innovative solutions to everyday problems aligns with my academic interests and fuels my curiosity about business strategies. Each pitch showcases creativity and strategic decision-making, which I find both insightful and inspiring. Watching the show has deepened my passion for business and motivated me to explore the world of entrepreneurship even further. Beyond business and writing, I love food, shopping, and spending time with my friends and family.








