Trusted Window and Door Replacement in Seminole, FL

Reliable Solutions Designed to Last and Look Great

IMPACT WINDOWS & DOORS

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High-Performance Windows Replacement

Perfect for Comfort, Style, and Today’s Energy Needs!

Your windows are more than just glass—they’re a barrier between your home and the Florida climate. At Karoly Windows & Doors, we install high-performance window systems designed to deliver energy efficiency, peace of mind, and long-term comfort. Whether you’re looking to reduce your energy bills, increase natural light, or quiet the outside noise, our replacement windows are engineered for results.In Seminole, FL, humidity, heat, and seasonal storms demand more from your home’s exterior. Our custom-fit windows are built to handle those conditions while enhancing your home’s curb appeal and resale value. From modern slider designs to classic casements, every window is installed with care and expertise for a cleaner, cooler, and quieter living space.

Types of Windows we offer

Impact Windows

Impact windows are specially designed to withstand extreme weather conditions, offering protection against high winds, flying debris, and forced entry. Ideal for storm-prone areas, they provide superior security and energy efficiency.

Double Hung Windows

Double-hung windows feature two movable sashes that slide up and down, offering excellent ventilation. They’re easy to clean and provide a classic look, perfect for both traditional and modern homes.

Sliding Windows

Sliding windows feature horizontal movement, making them easy to open and close. They are ideal for areas where vertical space is limited and offer excellent ventilation with a sleek, modern design.

Picture Windows

Picture windows are large, fixed windows that allow unobstructed views of the outdoors. They provide natural light and enhance the beauty of your home’s interior, making them perfect for showcasing scenic views.

Casement Windows

Casement windows are hinged at the side and open outward with a crank. They offer excellent ventilation and are ideal for hard-to-reach areas. Their tight seal makes them energy-efficient and secure.

Awning Windows

Awning windows are hinged at the top and open outward, creating an awning effect. Perfect for ventilation even during rainy weather, they offer a unique, modern look and work well in both contemporary and traditional homes.

Bay Windows

Bay windows project outward from the wall, creating a cozy nook inside. They typically feature three panels, offering panoramic views and enhancing natural light. These windows add character and charm to any home.

Custom Windows

Upgrade your home with custom windows tailored to your style and needs. Get precision-crafted designs that enhance beauty, comfort, and energy efficiency.

The Karoly Difference: Reason to Choose Us

What sets Karoly Windows & Doors apart is simple: we do things the right way, every time. With over 20 years of hands-on experience and a reputation built on trust, we’ve helped hundreds of Florida homeowners improve their homes with confidence.Below, we break down the six specific promises that make our process smooth, secure, and worth every dollar. These aren’t marketing phrases—they’re the foundation of how we earn lifelong customers.

Gold Standard Lifetime Warranty

Every window and door we install comes with our exclusive Gold Standard Lifetime Warranty. This isn’t just a manufacturer guarantee—it’s our personal commitment to the craftsmanship and materials we provide. If anything goes wrong due to our installation, we’ll make it right—no loopholes, no vague conditions.Our warranty covers labor and product performance, offering unmatched protection beyond typical industry standards. This level of assurance gives you peace of mind for decades to come. At Karoly, we believe quality isn’t just about what you see today—it’s about how your investment performs for the life of your home.

Price Match Promise—Transparent from Day One

You shouldn’t have to overpay to get top-tier service. That’s why Karoly offers a no-hassle Price Match Promise. If another well-known licensed contractor gives you a written quote for comparable products and scope of work, we’ll match it—no games, just fairness.This ensures you don’t sacrifice quality for cost. We want you to feel confident that you’re choosing the best service without overextending your budget. Our reputation is built on honesty, and our pricing reflects real value—crafted by experts, backed by reviews, and delivered with integrity. Get the best for less, without compromise.

Flexible Financing Plans That Work for You

Your window and door upgrade doesn’t have to wait. With our flexible financing options, you can start your home improvement project today and pay over time. Whether you prefer no-interest short-term plans or long-term monthly options, we’ll help you find the best fit.Approval is fast, the terms are clear, and there are no hidden fees. We’ll guide you through every step so there’s no confusion. Our goal is to make high-quality installation accessible—without financial stress. Home improvement should improve your life, not disrupt it, and our financing makes that possible.

Transferable Double Lifetime Warranty Coverage Adds Real Value

Our warranty isn’t just a safety net—it’s a smart investment. When you install with Karoly, your windows and doors come with a Double Lifetime Warranty that stays with the home—even after you sell it.This transferable coverage increases your home’s market appeal and gives buyers confidence in the product’s durability. It’s a value-added benefit most contractors don’t offer, and it reflects the long-term quality we stand behind. Whether you’re staying for decades or selling in a few years, your Karoly installation adds equity and peace of mind.

Screen Protection You Can Count On – Fully Covered, Zero Stress

Window screens shouldn’t wear out faster than your windows. At Karoly Windows & Doors, we don’t just include custom-fit screens—we back them with a warranty you can actually use. Every screen is made to match the window it’s paired with, ensuring a snug, professional finish that holds up in Florida’s intense sun, humidity, and storm seasons.Our screens are covered under a no-hassle protection plan. If they fail due to manufacturing defects, we’ll take care of it—simple as that. No surprise costs, no back-and-forth. We don’t treat screens as extras. We treat them as essential components of a quality installation, built for long-term performance and backed by real support.

Personally Managed by Licensed Contractor Karoly

Unlike many companies that pass you off to subcontractors, Karoly personally oversees your installation project. As a licensed general contractor with decades of architectural and structural expertise, he ensures every detail meets Florida’s strict building codes and your home’s exact needs.You won’t be wondering who’s showing up or whether the job will be done right. Karoly’s hands-on management guarantees precision, accountability, and a high-quality finish. This isn’t just business for us—it’s a reflection of our name, our standards, and the pride we take in our work.

Custom Doors That Deliver Strength, Style & Seamless Fit

Doors are more than just entry points—they’re your home’s first impression and a key part of its defense. At Karoly Windows & Doors, we offer professionally installed front entry doors, sliding patio doors, interior upgrades, and storm-rated glass doors built for Florida’s climate.Our doors are energy-efficient, secure, and built to last. We custom-fit every unit for your frame and seal it for long-term protection against drafts, leaks, and humidity. From hurricane-rated options to elegant French doors, we combine form and function.If you’re looking to improve security, insulation, or just the look of your space, our custom door solutions add lasting value and beauty to your home.

Types of Doors we Offer

Sliding glass doors

Sliding glass doors offer a sleek, modern look while letting in natural light and easy outdoor access. They’re perfect for saving space and enhancing views.

Standard sliding patio door

A standard sliding patio door glides smoothly on tracks, offering easy access to your outdoor space. It’s a space-saving solution that brings in natural light and fresh air.

Pocket sliding door

A pocket sliding door disappears into the wall, maximizing space and creating a clean, modern look. It’s ideal for areas where swing doors aren’t practical.

Bi-parting doors

Bi-parting doors slide open from the center, creating a wide, elegant entryway. They’re perfect for blending indoor and outdoor living spaces seamlessly.

Exterior doors

Exterior doors provide security, insulation, and curb appeal for your home. Designed to withstand the elements, they offer both function and style.

Entry doors

Entry doors make a strong first impression while enhancing your home’s security. They combine durability with style to welcome guests with confidence.

Double entry doors

Double entry doors add a grand, spacious feel to your home’s entrance. They offer increased accessibility and elevate curb appeal with elegant design.

French doors

French doors feature classic, hinged panels with glass inserts that invite natural light. They add timeless charm and open up spaces with elegance.

Built for Storms, Styled for Life

Simonton® – Elegant Strength with Energy Smarts

Simonton® windows blend style with substance. Their multi-chambered frames and low-E glass deliver insulation and efficiency, while classic design options add lasting appeal. With rigorous testing behind every unit, Simonton® gives homeowners confidence in every pane—whether facing daily wear or seasonal storms.

PGT® – The Coastal Champion

PGT® is a leader in hurricane window technology, offering products built to safeguard homes from high winds and flying debris. Designed to meet or exceed Florida’s strictest codes, PGT® windows also filter noise and UV rays, making your home safer, quieter, and more energy-efficient year-round.

Engineered for Florida: Code-Exceeding Impact Window Systems

Basic compliance isn’t enough when your home faces hurricanes, humidity, and year-round heat. That’s why we install window systems that don’t just meet the code they outperform it. Our impact-rated windows are built with laminated safety glass, reinforced frames, and multi-point locking systems.They’re tested against flying debris and extreme wind pressure, but they also bring everyday benefits: lower energy bills, reduced outside noise, and UV protection for your furniture and flooring.We follow Florida’s strict building regulations to the letter and go a step further with expert installation that secures every window for decades of performance and safety.

Making the Right Choice: A Practical Guide to Window Styles

Choosing the right window style can dramatically impact how your home looks and functions. At Karoly, we help you find the perfect fit—functionally and aesthetically.Want airflow? Casement or awning windows are great for ventilation. Prefer easy operation? Single and double-hung windows are timeless and user-friendly. Need a panoramic view? Picture windows offer that “wow” factor.We also help you mix styles across your home to balance natural light, privacy, and energy efficiency. No pressure, no upselling—just expert recommendations based on your goals. When your window style matches your lifestyle, your whole home feels better.

Trusted by the Biggest Brands

Check Out Our Reviews

          Posted on Google  
   
   W Murphy 
 8 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. +0
I reached out to Karoly for new sliding windows in my florida room and two exterior doors.  Karoly came out and spent quite a while getting all the measurements right.  That makes you feel good.  When the installers came out, two days and done.  Windows look great and the doors are solid and close tight.  Everything is now impact and hurricane rated.  I got my insurance discount.  Thanks Karoly!
  
 
     Posted on Google  
   
   Elva Morales 
 1 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. Villi and Christian did a fantastic job replacing all the windows in my home! Their attention to detail, professionalism, and care
throughout the project truly stood out. I'm extremely pleased with the results and want their supervisor to know what a wonderful team they are. Thank you both for your excellent work!
  
 
     Posted on Google  
   
   Mark Hodge 
 12 September 2026
 
 
 Trustindex verifies that the original source of the review is Google. +0
Great job, guys! You went above and beyond from start to finish. I’m really glad I chose to do business with you. Finding a good, reliable contractor isn’t always easy, but you definitely delivered. I wouldn’t hesitate to recommend you to anyone looking for quality work and great service.
  
 
     Posted on Google  
   
   Ben Khosravani 
 11 September 2026
 
 
 Trustindex verifies that the original source of the review is Google. We had a leak under a sliding door, which was installed by the previous owner of our condo. I called Karoly and they came in less than 3 days and the very friendly, professional representatives fixed the issue at no charge.
  
 
     Posted on Google  
   
   Anthony Pinto 
 27 August 2026
 
 
 Trustindex verifies that the original source of the review is Google. Great service from beginning to end, everyone on the team was extremely friendly and helpful!
  
 
     Posted on Google  
   
   Daniel Melker 
 24 July 2026
 
 
 Trustindex verifies that the original source of the review is Google. I am very hard to please as I pretty much expect close to perfection.  From a serious point I just want a TEAM that cares and gives it their best.  Mistakes happen.  However today I had Hurricane windows placed by Karoly.  Actually from the very beginning it was like dealing with a family.  In all my dealing with different companies A/C etc they far outshined any company I have ever dealt with.  My techs were  Vili, Zoli and Christian.  They gave 150%, were very clean, cared about our house and did exquisite workmanship.  1,000% incredible and guess what they are not my relatives.  LOL
  
 
     Posted on Google  
   
   Nina Goins 
 24 July 2026
 
 
 Trustindex verifies that the original source of the review is Google. Karoly sent us Bo and Peter who completed the job in one day.  Very professional,  cleaned up after themselves, and what they removed including the door jams, threshold, trim was all reinstalled.  They di exceptional work.
  
 
     Posted on Google  
   
   Cheryl Sigmon 
 21 July 2026
 
 
 Trustindex verifies that the original source of the review is Google. +2
I will never be able to brag enough about how superior this company is. My husband and I interviewed at least seven window companies, all full of similar products of PGT or other hurricane safe Windows. We became window experts on our own with the knowledge we absorbed comparing apples to apples.

Karoly was the final company we met with and Austin presentation was simple and he showed us a sample and did all the measurements. He explained the Simonton brand very well and the warranty they offer cannot be beat. We visited their showroom and met with Jesse  to really look at products. Our decision was quick and easy and the price was better than their competitors.

We completed all the paperwork with Richy and Angela and the rest of the wonderful staff. Installation day came and we met the fantastic installers that were so kind and clean. In 3 days our job was done. The day after that inspector came and passed us and one week later Karoly came back to complete final installation of some parts and now it’s all finished.

These windows have changed our home completely. Not only did we work with the best contractor and save money we also gained a more beautiful home and it’s so quiet! No barking dogs or loud traffic or thunder anymore just peaceful tranquility!!!

Thank you everyone at Karoly for making us so happy!!! I promise to call you again for all my other houses!! This was the best thing we’ve ever done without a doubt .

Sincerely,
Cheryl & Doug Sigmon
  
 
     Posted on Google  
   
   Michael Cotten 
 17 July 2026
 
 
 Trustindex verifies that the original source of the review is Google. +0
Thrilled with our new windows and doors. Dealing with Karoly, from no pressure sales, installation, and close out was great. They kept us informed and did everything they said they would. Highly recommend Karoly Windows and Doors!
  
 
     Posted on Google  
   
   Jennifer Orlando 
 5 July 2026
 
 
 Trustindex verifies that the original source of the review is Google. After researching a few companies, I decided to go with Karoly.  They replaced 19 windows and 3 sliders with Sinomton Stormbreaker Plus 300VL and Simonton Maxview.  I enjoyed reading the information they had on their website and pleased to see this is a family owned business with emphasis on quality work and customer satisfaction.  Employees were pleasant and professional and answered my questions.  It has only been almost 2 years since installation and from my experience thus far, I would highly recommend Karoly.
  
 
     Posted on Google  
   
   Ken Averitt 
 29 June 2026
 
 
 Trustindex verifies that the original source of the review is Google. +1
I couldn't be happier with my experience with Karoly Windows & Doors! They replaced all of my windows along with two doors, and the entire experience exceeded my expectations. From start to finish, everyone was professional, friendly, and truly cared about doing the job right.

The installation crews were outstanding. They were hardworking, respectful of my home, paid attention to every detail, and the quality of their workmanship was exceptional. I'm extremely pleased with the quality of the window replacement, the beautiful new doors, and the finished results.

I was so impressed with the company that I've already recommended Karoly Windows & Doors to several of my neighbors. It's refreshing to work with a company that delivers exactly what they promise. If you're considering window replacement, I highly recommend Karoly Windows & Doors. They are a true first-class company, and I couldn't be more satisfied with the entire experience.
  
 
     Posted on Google  
   
   Jim Martin 
 18 June 2026
 
 
 Trustindex verifies that the original source of the review is Google. +1
So so thrilled with service, timelines, cleanliness.   After 17 windows & 3 doors were installed,  my home looked transformed.
  
 
 
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Inspiration Gallery for Seminole Windows & Doors

Areas We Serve

Upgrade your home with the perfect replacement windows! Karoly Windows & Doors offers expert guidance on custom glass, impact, and energy-efficient solutions—all tailored to your budget. Schedule a free consultation today to enhance comfort, security, and efficiency!

FAQs

Do new windows really reduce sound, or is that a myth?

It’s absolutely true—especially with dual-pane or laminated glass. Properly sealed replacement windows significantly reduce outside noise from traffic, neighbors, or lawn equipment.

Can I keep my existing frames and just replace the glass?

That depends. If your frames are warped, rotted, or poorly insulated, replacing only the glass won’t help. Full replacement ensures energy efficiency and performance.

Do doors need to be replaced if they're not visibly damaged?

Yes—sometimes. Even if your door looks fine, it could be leaking air, warping, or lacking modern insulation. Replacement can fix hidden performance issues.

Will installation disrupt my daily routine or work-from-home setup?

Not at all. Our crew works efficiently and respectfully. You’ll know the schedule in advance, and we complete most installs in a single day with minimal noise.

Is triple-pane glass necessary for Florida homes?

Not usually. In our climate, impact-rated double-pane glass provides excellent insulation and storm protection. Triple-pane is more common in colder zones.

Get a Free, No-Rush Window & Door Quote in Seminole, FL

When it comes to replacing your windows and doors, you deserve a process that’s informative—not pushy. At Karoly Windows & Doors, we start with a free in-home consultation tailored to your needs, timeline, and goals.
You’ll get honest answers, real product comparisons, and a quote you can review at your pace. No sales pressure—just friendly, expert guidance from people who care about your comfort and satisfaction.We’ve helped homeowners upgrade with confidence. Let’s walk your home, explore your options, and create a plan that’s built around you.