Marathon

Window Replacement & Installation Contractors in Marathon, FL

Updated on January 8, 2026

For homeowners with older windows, aesthetics, energy efficiency, and safety are huge concerns. Replacing your windows is an important project that you shouldn’t put off for too long. When you need replacement windows in Marathon, FL, choose Lindholm Exteriors.

We are a family-owned and operated business of window installers in Marathon, Florida, serving the Florida Keys since 1949 with energy efficient replacement windows. For over 75 years, our home exterior contractors in Marathon have built to protect and crafted to last, giving you peace of mind in extreme weather while upholding your curb appeal. Our commitment to excellence through personalized service and reliable support is what makes us the top window installers.

Lindholm Exteriors is a BBB-accredited business with an A+ rating. See why we stand out from other window companies as the local experts for window solutions. Contact us today and get a free and quick estimate on our services.

Architectural, geometric windows - Lindholm Exteriors
Trusted by Customers Since 1949

75+ years of durable roofing, impact windows, and secure doors.

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Lindholm Exteriors' Comprehensive Window Installation and Replacement Windows Services

The first step in our window installation and window replacement services begins with choosing the type of windows you want for your home. We offer a free consultation to help you evaluate your options such as choosing impact windows or the benefits of aluminum frames. There are styles and energy-saving features to consider as well, and we will lead the way to ensure you make the best decision.

Once you have made your selections, our team gets to work removing your old windows and disposing of them with proper care and diligence to protect our fragile ecosystem. The installation of the new windows is next, conducted in accordance with local building codes. We finish with an inspection to ensure quality and proper function.

Types of Windows and Material Options Provided by Our Window Replacement Contractors

For windows, patio doors, and front doors, our customers expect the best in quality. We are proud to offer Simonton and PGT, two of the top brands that have the best ENERGY STAR-rated products and align with our vision of quality. We also use vinyl and aluminum materials for fabricating windows. Vinyl provides excellent insulation, helpful for lowering energy bills, while aluminum is a durable choice to go with impact windows in our storm-prone area, and while more conducive, it can be insulated to help you prevent energy waste.

Ask us about the variety of window products we can provide for your window installation and window replacement that can add the perfect touch to your home:

  • Single-Hung Windows: These windows have only one operable sash. The bottom part slides up and down while the top portion stays in place.
  • Double-Hung Windows: Double hung windows have two sashes that can open from the top and bottom, a smart feature that allows for easy cleaning to enjoy a pristine view.
  • Casement Windows: With hinges on one side, casement windows swing open just like doors. They have large panels of glass that give you an obstruction-free glimpse outdoors.
  • Sliding Windows: Sliding windows glide smoothly on tracks mounted at the top and bottom. These wider windows are ideal for enjoying a horizontal view of your property.
  • Awning Windows: Awning windows have hinges at the top, allowing them to swing outward. You’ll see these in bathrooms as they can be installed at a higher point on the wall, giving you natural light without sacrificing privacy.
  • Geometric Windows: Geometric windows can be custom-fit and designed to any shape and space, creating a unique addition for your home.
  • Picture Windows: Picture windows use one large glass pane that doesn’t open, an ideal option for preserving energy-efficiency in Marathon while having a premium view of the sparkling waters beyond.
  • Impact and Hurricane Windows: Protect your home from hurricanes and other severe weather. These windows use bonded glass panes set into reinforced frames for greater peace of mind.
  • Nonimpact Windows: Also known as standard windows, they usually feature two panes of glass with a nontoxic gas fill. They provide better protection compared to old single pane windows from ages ago though they aren’t impact-proof.
  • Vinyl Windows : Vinyl windows are energy-efficient, durable, affordable, and low-maintenance, making them a smart pick for your Marathon home.
  • Aluminum Windows: The durability of aluminum is ideal for storm-prone areas, and it can be insulated to reduce heat transfer, allowing for enhanced energy-efficiency.
  • Energy-Efficient Windows: Energy-efficient windows feature two or three panes of glass with Low-E coatings and gas fills between the layers of glass. They are also set into insulated frames, allowing you to stay cool and comfortable in your home no matter how hot it gets outside.

Energy Efficiency Through ENERGY STAR

Our window contractors work with ENERGY STAR-certified windows to maximize your energy efficiency levels. In choosing the top brands, you will find that these products are the top echelon of quality that provide the solutions you need.

Staying comfortable indoors is a huge concern for homeowners in Marathon. Air conditioning is always working hard, and by investing into these energy-saving windows for your home, you’ll save money without sacrificing your ideal comfort level.

Back view of man installing aluminum window - Lindholm Exteriors

Local Community Engagement: Our Role as a Window Installation Company in Marathon, FL

For over 75 years, we have helped families and businesses enhance their properties through window upgrades. We care deeply about the local area and work to make a difference for our customers.

Most companies show up and perform a service, then leave. We start with a free quote and work with you to lead the way in turning your home into your ultimate sanctuary. New windows will help you protect your family and your property while giving you peace of mind during severe storms. Start today by scheduling your free consultation and learn how we can make a difference for you, too.

Warranty and Maintenance

When choosing window products, it is important to remember that window manufacturers offer warranties. Those warranties can be voided when they aren’t installed correctly. At Lindholm Exteriors, we take these processes seriously and never cut corners to get the job done.

You can count on us for expert installation and diligence from the beginning. Once your windows are installed, they will be easier to maintain. Newer windows make it a simple task, only requiring you to wipe them clean and keep the tracks free of grime. You should also inspect them once a year to check for any cracks or gaps in the seals.

Contact Our Window Installers Today

When you want to review your options in styles and colors but don’t know where to start, contact our home exterior contractors in Marathon, FL. We are happy to show you your choices and help you understand the features and benefits of each one. Lindholm Exteriors was founded by family and continues to focus on bringing that family-oriented care to all of our customers. Fill out the convenient form here or give us a call today and we’ll be in touch!

Offering Financing

Our Selection

See Our Window Types

Aluminum windows - Lindholm Exteriors

Aluminum Windows

Ideal for storm-prone areas, aluminum windows are durable and can be insulated to reduce heat transfer, enabling enhanced energy efficiency.

Awning windows - Lindholm Exteriors

Awning Windows

Hinged at the top, awning windows open outward from the bottom, creating an awning.

Casement windows - Lindholm Exteriors

Casement Windows

A classic and versatile window style, casement windows can add beauty, functionality, and efficiency to any home.

Double-hung windows - Lindholm Exteriors

Double-Hung Windows

If you're looking to add style and safety to your home, consider installing double-hung windows.

Energy-efficient windows - Lindholm Exteriors

Energy-Efficient Windows

Set into insulated frames, energy-efficient windows enable you to stay cool and comfortable in your home no matter how hot it gets outside. They feature two or three panes of glass with Low-E coatings and gas fills between the layers of glass.

Architectural, geometric windows - Lindholm Exteriors

Geometric Windows

To add unique architectural flair with custom shapes, geometric windows will bring light and character to any space.

Impact window - Lindholm Exteriors

Impact and Hurricane Windows

Built to withstand severe weather, impact and hurricane windows provide maximum protection and peace of mind.

Nonimpact windows - Lindholm Exteriors

Nonimpact Windows

Also known as standard windows, they usually feature two panes of glass with a nontoxic gas fill. They provide better protection compared to old single pane windows from ages ago though they're not impact-proof.

Picture Windows

For homeowners who want their home to have a colonial look, picture windows are the perfect traditional window option.

Single-Hung Windows

A cost-efficient way to upgrade your window package, single-hung windows provide a classic look.

Sliding Windows

Providing a space-saving design, sliding windows offer an easy horizontal operation and a wide view of the outdoors.

Vinyl windows - Lindholm Exteriors

Vinyl Windows

Energy-efficient, durable, affordable, and low-maintenance, vinyl windows are a smart pick for your Florida Keys home.

Gallery

See Our Window Gallery

We offer some of the highest quality residential window products that include PGT, Simonton, and Andersen.​ We have specialized in the replacement and installation of residential windows projects in the Florida Keys since 1949. Our commitment to excellence in residential window installation is at the core of our business model. That’s why it’s hard for homeowners to hire another residential window contractor. Trust Lindholm Exteriors for your total home window replacement.

Our Promise

Experience the White Glove Guarantee

The “white glove guarantee” is our promise to our customers. It’s the company-wide standard that we hold ourselves to daily. That promise is comprised of the following three values:

We Do What We Say

Our team practices what we preach from showing up to appointments on time to keeping installation deadlines and all the other promises in between. We mean what we say, and we stand by that!

Our Price Is Fair

Everyone pays the same. We know that you earn your money the hard way, just like the rest of us. That's why we have a same-price guarantee throughout the Florida Keys.

We Aim for Perfect

We're still here after 75 years because of one simple reason: we aim for perfection, not just "good," but "great." We help our customers to get the most out of their homes.