Window Replacement St. Petersburg, FL

Trusted Experts Delivering Quality and Peace of Mind

IMPACT WINDOWS & DOORS

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Expert Window Installation

Boost Energy Efficiency and Strengthen Your Home

Karoly Windows & Doors takes window installation seriously. In St. Petersburg, FL, the climate challenges homes with humidity, high winds, and UV exposure. That’s why our installations are engineered for long-term energy savings and structural resilience.We use low-E glass, reinforced frames, and weather-tight sealing systems to create a barrier against the elements. Our experienced team follows strict local code, ensures a precise fit, and never cuts corners. Each project begins with an exact measurement and ends with a flawless finish—no leaks, gaps, or callbacks.This isn’t just about looks. Our windows reduce indoor heat gain, enhance security, and block noise from busy neighborhoods. In every job, our goal is to give homeowners lasting performance they can see—and savings they can feel.

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 Homeowners Trust Karoly Windows & Doors for Peace of Mind

Trust is earned through transparency, results, and consistency—and at Karoly Windows & Doors, that’s exactly what we deliver. From your first phone call to the final inspection, we focus on precision and long-term value. Every detail is handled by professionals trained to do things right the first time. Here’s what sets our team apart from every other company offering window and door services in the market today.

Gold Standard Lifetime Warranty

We provide more than just a warranty—we offer total assurance. Our Gold Standard Lifetime Warranty covers not only your window or door product but also the installation work. That means if anything goes wrong due to material failure or craftsmanship, you’re covered. No fine print. No hidden fees.Many companies offer “limited” warranties that protect only the frame or glass. We take it further. We cover performance, sealing, structural integrity, and overall fit. And if we install it, we own the responsibility.Our warranty reflects our confidence and commitment to your home’s safety and longevity. With Karoly, peace of mind isn’t optional—it’s included.

Competitive Price Match Promise

At Karoly Windows & Doors, you don’t have to choose between quality and affordability. Our Competitive Price Match Promise ensures you’ll never overpay for premium installation. If you bring us a legitimate quote from a licensed well-known competitor using the same specifications and materials, we’ll match it—simple.We believe in transparent pricing that reflects real craftsmanship, not inflated markups. Our goal is to offer top-tier materials and expert service at a price that respects your budget.With Karoly, you won’t compromise on performance, protection, or aesthetics—just enjoy honest value from a team that delivers exactly what they promise.

Flexible Financing Options That Fit You

We understand that replacing your windows or doors is a significant investment. That’s why Karoly offers flexible financing solutions designed for real homeowners with real budgets. Whether it’s one window or a full-home renovation, we help make it happen—without financial strain.Our plans include low-interest options, and quick approvals through trusted lending partners. We walk you through each step, explain terms clearly, and help you select a payment plan that works for your timeline and comfort level.No surprises. No stress. Just a straightforward way to get the improvements you need—now, not later.

Double Lifetime Transferable Warranty

Our Double Lifetime Transferable Warranty is a game changer for resale value and peace of mind. While most warranties end with the homeowner, ours continues for the next one too. That means if you decide to sell your home, the new buyer will enjoy the same protection you did—without hassle.It’s fully transferable, clearly documented, and applies to both the products and our installation work. This warranty strengthens your home’s appeal, builds buyer confidence, and shows long-term care was invested.At Karoly, we believe warranties should last as long as the windows do—and we’ve designed ours to follow through.

Warranty on Screens As Well

Many companies overlook the small stuff—but we don’t. Screens are often exposed to daily wear, wind damage, and even pet accidents. That’s why we include full coverage for screens in our warranty. If they tear, warp, or pull due to normal use or defects, we’ll take care of it.We install durable mesh that resists corrosion and fraying, especially important in Florida’s coastal climate. And just like our windows, we stand behind their performance and function.It’s another layer of protection that shows how committed we are to every detail of your installation.

Supervised by Licensed Contractor & Architect

Every project is guided by Karoly himself—a licensed general contractor and architect. That means your window or door installation isn’t just handled by skilled installers, but also overseen by someone who understands structural safety, design flow, and compliance from every angle.This level of expertise ensures precise measurements, code adherence, and seamless integration with your home’s unique architecture. Karoly personally reviews plans, checks progress, and ensures that standards remain high from start to finish.With us, you’re not getting rushed installs or faceless crews—you’re getting leadership, quality control, and a finished product that reflects our reputation.

Exterior, Entry & Sliding Doors Installed With Expert Care

Your doors do more than open and close—they protect, insulate, and welcome. At Karoly Windows & Doors, we install all types: heavy-duty exterior doors, elegant entry doors, sleek interior doors, and energy-efficient sliding glass doors.

We work with durable materials and premium brands to ensure every door enhances your home’s curb appeal, energy efficiency, and security. Every installation is handled by certified installers who measure twice and seal tight.Whether you’re upgrading your main entry, creating indoor-outdoor flow with a new patio slider, or replacing interior panels, we help you choose the right style and finish—and install it with unmatched precision.

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.

Trusted Quality from Simonton® & PGT® Windows and Doors

When it comes to durability and long-term protection, we rely on brands that deliver. That’s why Karoly Windows & Doors installs high-performance windows and doors from Simonton® & PGT® manufacturers known for their energy efficiency and hurricane resistance. These systems are built to meet the strict demands of Florida’s climate while maintaining visual appeal.Our selections include multi-pane glass, weather-tight seals, and heavy-duty frames designed to minimize energy loss and block out harmful UV rays. Hardware is rust-resistant, and locking systems are engineered for enhanced safety.We also include free upgrades like ProSolar Shade Low E or EnergyShield Max glass—features that would cost extra elsewhere. When paired with our in-house installation, these products bring the best value and performance to your home.

Impact-Resistant Windows That Exceed Florida’s Storm Code

Protecting your home starts with the right glass. Our impact-rated windows are engineered for Florida’s toughest weather. Whether it’s hurricane winds, flying debris, or intense pressure changes, these windows hold strong. They feature laminated glass layers, reinforced corners, and compression seals that keep everything secure—even when conditions outside aren’t.But it’s not just about storm safety. These windows also provide year-round benefits: better insulation, lower noise levels, and enhanced break-in resistance. That means more comfort and peace of mind for your family.Karoly Windows & Doors ensures every unit is installed to code and sealed with precision. When a storm rolls in, you’ll feel confident—not worried—knowing your home is protected from the inside out.

Installed by In-House Certified Crews – Never Subcontracted

The quality of your installation determines how well your windows and doors perform—and that’s why we never outsource. At Karoly Windows & Doors, every job is completed by our trained, in-house team of certified installers. These professionals follow strict procedures and meet both manufacturer and Florida state building standards.We don’t take shortcuts, and we don’t leave until every frame is level, every seam is sealed, and every detail is right. Our team respects your home and your time. From arrival to cleanup, we work with care, cleanliness, and clear communication.It’s our belief that consistency leads to excellence. With our in-house team, you’re getting professionals who care as much about your results as you do.

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 St Petersbrug 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 types of windows are best for energy efficiency?

Low-E, double-pane, and insulated vinyl windows offer the best energy efficiency. Our Simonton® and PGT® windows are designed to reduce heat transfer and lower energy bills.

Are hurricane impact windows really worth the investment?

Yes. Impact windows protect against storms, reduce noise, improve security, and often qualify for insurance discounts. They’re built to meet strict storm codes.

Do I need to replace all my windows at once?

Not necessarily. We offer phased window replacement based on your needs and budget. Many homeowners start with high-exposure or damaged areas first.

How do I know if my doors need to be replaced?

If you notice drafts, moisture buildup, difficulty opening/closing, or visible wear, it may be time for door replacement. We can inspect and recommend the right solution.

Are your sliding glass doors impact-rated and energy efficient?

Yes. Our sliding glass doors meet impact standards and include insulated glass and weatherproof frames, combining storm protection with thermal performance.

Schedule Your Free Window & Door Consultation in St. Petersburg, FL

It’s easy to get started—and it costs nothing to explore your options. At Karoly Windows & Doors, we offer free in-home consultations where we assess your space, understand your goals, and provide expert recommendations. You’ll get clear answers, detailed product info, and a written quote without any pressure to commit.

Whether you need energy-efficient window upgrades, impact-resistant sliding doors, or a complete home transformation, we’re here to help you make confident, informed decisions. Our reviews always increase our confidence in our service.We’ve served hundreds of satisfied homeowners across the region—and we’re ready to serve you next. Book your consultation today and experience the difference of working with local experts who truly care.

Additional Resources for St. Petersburg, FL

Planning & Development – Permitting

Website:www.stpete.org/construction_services_and_permitting/index.php
Location: One 4th Street North St. Petersburg, FL 33701
Phone: 727-893-7231
Fax: 727-892-5447
Hours: Mon, Tues, Thurs, Fri 8 am – 4:30 pm; Wednesday 8 am – 3 pm
Last customer taken 1/2 hour prior to closing.

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 in Required in Tampa

Risk Category II – 145 mph
Vinyl Hurricane Impact Rated Windows are required for St. Petersburg 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.