Window Replacement Largo, FL

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IMPACT WINDOWS & DOORS

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Seamless Window & Door Installation

Enjoy Lasting Protection and a Perfect Fit Every Time

When it comes to windows and doors, installation quality is everything. At Karoly Windows & Doors, we approach every project with the care it deserves. From day one, our certified installation team works with precision to ensure your new windows and doors are perfectly fitted, weather-sealed, and built to last.Living in Largo, FL means facing heat, storms, and humidity—and our installations are designed for it all. We use advanced materials like low-E glass, impact-rated frames, and tight seals that keep energy bills low and protection high. Our team follows strict guidelines, keeps your property clean, and finishes every job on time.We don’t believe in shortcuts. Every frame is measured twice. Every opening is checked for moisture issues. And every finish detail is reviewed. Our promise? Long-term performance and beauty that lasts for years.

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.

Why Largo Homeowners Rely on Karoly Windows & Doors

Choosing a contractor isn’t just about price—it’s about trust, craftsmanship, and long-term value. At Karoly Windows & Doors, we’ve built a reputation that goes beyond the sale. Homeowners turn to us not only for premium products but also for our honest service, reliable communication, and detail-obsessed installations.
Here’s why our customers keep referring us to friends, family, and neighbors.

Gold Standard Lifetime Warranty

We don’t believe in limited warranties with fine print and exclusions. Our Gold Standard Lifetime Warranty provides comprehensive protection for both the product and installation. If something fails due to a defect or improper installation—even years down the line—we handle it. No hidden fees, no hoops to jump through.It’s rare to find a company that’s this confident in its work. But at Karoly, we know the value of standing behind what we build. We log and register every warranty so you’re never left wondering what’s covered. Our goal is long-term peace of mind, not short-term fixes. When we say “lifetime,” we mean it—and we’ve got the track record to prove it.

Competitive Price Match Guarantee

Value doesn’t mean cutting corners—it means getting the best for your investment. At Karoly Windows & Doors, we make sure you never overpay for top-quality service or products. Our Price Match Guarantee ensures that if a well-known competitor offers the same product and scope for less, we’ll match it.This policy protects you from inflated bids and gives you room to prioritize what really matters: long-lasting, weather-ready windows and doors installed by experts. You’ll get honest pricing from day one, and we’ll explain every line on your estimate clearly. When you combine our price match with premium brands and skilled labor, you get the best value in Largo—hands down.

Easy Financing Options for Every Budget

Upgrading your windows or doors shouldn’t mean draining your savings. That’s why we offer flexible financing options designed for real homeowners. Whether you’re remodeling a single room or the entire house, we’ll help you break the cost into manageable monthly payments—with low interest rates and fast approval.Our team will walk you through your options, explain all terms clearly, and help you choose a plan that works. We partner with reputable lenders and never upsell unnecessary add-ons. The goal is simple: to get you the quality you need without the financial stress. Karoly makes window and door replacement accessible, practical, and budget-friendly—so you can move forward with confidence.

Double Lifetime Transferable Warranty

Our Double Lifetime Transferable Warranty is more than a nice-to-have—it’s a powerful tool for your home’s value. Not only does it cover you for life, but it also extends to the next homeowner. That’s peace of mind you can pass on if you ever decide to sell.This coverage applies to both labor and materials, giving future buyers full protection and confidence in your home. It’s a strong selling point and sets your property apart in a competitive market. At Karoly Windows & Doors, we design every warranty to protect your investment today—and support your decisions tomorrow.

Screen Coverage Included in Warranty

Most companies treat screens as an afterthought—but at Karoly Windows & Doors, we see them as an important part of the whole system. That’s why we include full screen coverage in our standard warranty. If your screens tear, warp, or malfunction due to a product issue or normal use, we take care of it. We use high-quality mesh materials that are built to withstand Florida’s heat, storms, and everyday wear. But if something does go wrong, you won’t be stuck replacing it yourself. With Karoly, even the smallest parts of your project are protected. It’s one more way we go the extra mile for our customers—and why Largo homeowners trust us.

Oversight by Licensed Contractor & Architect

Every project at Karoly Windows & Doors is guided by Karoly himself—a licensed general contractor and architect with decades of experience. This dual expertise gives you something most companies can’t: a deep understanding of both design and structure in every detail.

Karoly doesn’t just manage from a distance. He trains our installers, reviews custom design plans, and visits job sites to ensure quality. This hands-on leadership guarantees that your installation meets local codes, enhances your home’s aesthetics, and performs the way it should.

When your project is led by someone who understands form and function equally, the result isn’t just better—it’s exceptional. That’s the Karoly difference.

Strong, Stylish Doors Built to Last – Installed by Experts

Your door is more than an entryway—it’s a statement. At Karoly Windows & Doors, we install beautiful, high-performing doors that make your home safer, more efficient, and more inviting. Whether you need a bold new front door or a quiet-glide sliding patio door, we’ve got you covered.We carry a range of materials like fiberglass, woodgrain composites, and insulated glass to match your style and your climate. And we handle the full installation—from weather-sealing to hardware—so every door functions flawlessly.We don’t just hang doors—we make sure they’re built to last. With every project, we aim for the perfect combination of elegance and durability. Your door should work hard—and look great doing it.

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.

Our Trusted Window & Door Partners

Trusted Quality from Simonton®

Simonton® is a trusted name in energy-efficient, impact-resistant windows designed to enhance your home’s comfort and curb appeal. Their windows are built with premium materials for lasting durability and feature timeless styles to match any aesthetic. Homeowners choose Simonton® for innovation, performance, and peace of mind in every installation.

Trusted Quality from PGT®

PGT® specializes in impact-resistant windows built to protect homes in storm-prone regions. Their products combine cutting-edge technology with elegant designs, offering both safety and beauty. Engineered to meet Florida’s toughest building codes, PGT® windows provide long-term resilience, energy savings, and noise reduction—making them a top choice for coastal living.

Trusted Quality from Simonton® & PGT® Our Trusted Window & Door Partners

We install what we trust—and that means Simonton® & PGT® products designed for Florida’s unique demands. These brands are industry leaders in storm protection, thermal performance, and long-lasting design.From the Simonton StormBreaker Plus Simonton® series to the PGT WinGuard line, these systems feature impact-resistant glass, multi-layer sealing, and energy-efficient upgrades. We even offer free glass upgrades like ProSolar Shade Low E or EnergyShield Max with select installs.Our relationship with these manufacturers ensures you get top-tier products backed by real support. And when paired with our installation expertise, they perform better, last longer, and look cleaner for years. You deserve windows and doors that are built to do it all—and these deliver.

Built for Florida Weather – Hurricane Impact Windows & Doors

Florida weather demands serious protection. That’s why we install hurricane-rated windows and doors that exceed the state’s toughest building codes. Every unit is designed with laminated impact glass, reinforced frames, and energy-saving insulation.Even when hit by debris, these systems stay intact—protecting your home from water, wind, and intruders. But the benefits go beyond storm season. You’ll notice less outside noise, fewer drafts, and stronger security year-round.Karoly Windows & Doors ensures every product is compliant, tested, and installed with precision. We don’t take chances—because you can’t afford to when the next storm rolls in. With our impact systems, peace of mind is built right in. Read our reviews about what our clients say about our promises.

Flawless Installation from Our In-House Certified Installers

Installation isn’t just a step—it’s the foundation of performance. That’s why every Karoly installation is completed by our factory-trained, in-house professionals—not subcontractors. This gives you greater consistency, accountability, and quality from start to finish.Our team follows detailed procedures for every measurement, seal, and finish. We protect your property, clean up after ourselves, and walk you through your new system. Each install is also reviewed for code compliance, energy performance, and long-term function.With Karoly Windows & Doors, your installation isn’t rushed or outsourced. It’s carried out with pride, precision, and purpose—because that’s what your home deserves.

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 Largo 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

What is the difference between impact windows and standard replacement windows?

Impact windows are built with laminated glass that resists shattering during storms or break-ins. Standard replacement windows don’t offer this level of protection.

Do you offer window installation for mobile homes?

No, we do not offer window installation for mobile homes. We use impact windows, and mobile homes do not have the structural integrity or wall depth to handle impact-rated windows.

Are Simonton® windows good for energy efficiency?

Yes. Simonton® windows include low-E coatings, thermal barriers, and insulating frames that reduce heat transfer and lower energy costs.

How long does a typical window replacement project take?

Most window replacement projects are completed in one to two days, depending on how many units are being installed and site conditions.

Can I finance both window and door installation together?

Absolutely. We offer flexible financing plans that cover both window replacement and door installation in one combined project.

Book Your Free In-Home Consultation in Tampa, FL With the Owner – Let’s Get Started

It starts with a conversation. Schedule your free consultation for window replacement Largo, FL, with Karoly Windows & Doors and discover expert recommendations, honest pricing, and no pressure—ever.Our team will walk you through options tailored to your needs, from energy savings to hurricane protection and design. You’ll get clear answers, real advice, and a quote you can trust.Whether you’re upgrading windows, replacing entry doors, or planning a complete overhaul, we’re here to help. Book your consultation today—and take the first step toward a better, safer, more beautiful home.

Additional Resources for Largo, FL

Pinellas County Property Appraiser

Website: www.pcpao.org

Location: County Courthouse 315 Court St, 2nd Floor, Clearwater, FL 33756

Phone: 727-464-3207 Fax: 727-464-3448

Hours: 8am to 5pm Monday through Friday; closed holidays

Download Request Address Change Form

Pinellas County Building Department

Website: www.pinellascounty.org/build/

Location: Building Services 440 Court St, Clearwater, FL 33756

Phone: 727-464-3888

Hours: Mon, Tues, Thurs, Fri 8am – 4pm; Wednesday 8am – 2:30pm; closed holidays

Peak Times: 11am – 1pm and the day after closures

Impact Rated Glass is Required in Largo

Risk Category II – 145 mph

Vinyl Hurricane Impact Rated Windows are required for Largo for window without alternative opening protection.

Energy Efficiency Rebates

Website: www.duke-energy.com

Phone: 800-943-6917

Online Energy Assessment: Click Here

Download Rebate Form Here

You must have a free Home Energy Check with a qualifying recommendation performed before any work begins (within the past 24 months) to qualify. Restrictions and Exceptions Apply. Contact Duke Energy for information.