Residential Window Installations
Lifetime is your most trusted local remodeling partner and replacement window contractor of choice for the greater Denver and Phoenix metropolitan area.




Who we partner with.
We work only with the best, so you get the prime products that consistently rank highest in quality – at fair prices. We proudly install Infinity® from Marvin®, the most highly respected fiberglass replacement window manufacturer in the United States.
Know when to invest in your windows.
When is the right time to replace your windows? There are a variety of symptoms that will tell you when it’s time to upgrade to new windows, even long before you see visual damage.
Replacement Windows:
In just a short time, you can get an upgrade to your home’s curb appeal and property value.
Window types and choices.
Get an overview of your available options for window function, finishes, styles, and colors.
Installing Beautiful, Customizable Awning Windows
Awning windows are a popular choice among homeowners. They feature a hinged top and swing open from the bottom, which provides ample ventilation. These windows are ideal for small spaces and hard-to-reach spots, such as over a kitchen sink. If you’re interested in adding awning windows to your home, Lifetime can help. We are the top Infinity from Marvin dealer in the nation, and our skilled technicians can install top-of-the-line Infinity awning windows.
Benefits of Awning Windows
In addition to being great options for tight areas and enhancing ventilation, our awning windows offer other benefits. They can stay open when its raining without allowing water to enter your home, and they also feature:
- A secure, multi-point locking system
- A crank handle that can be tucked away for a seamless aesthetic
- Fiberglass construction, which is eight times stronger than vinyl, offering superior durability
Our fiberglass windows are designed to mimic the look of real wood and are highly customizable. You can choose from various exterior and interior finishes, colors, glass types, grilles, lights, and hardware options. These windows won’t crack or leak and don’t contract or expand under intense weather changes, so they’ll provide years of dependable protection.
Choose Lifetime
You’ll enjoy fantastic customer service and top-notch products when you partner with us. Lifetime is locally owned, so we focus on our community and ensure that each homeowner loves the outcome of their project. In addition, we emphasize integrity, honesty, and clear communication—that’s how we earned the BBB Torch Award.
And for your peace of mind, we offer a double transferable lifetime warranty that covers parts, service, labor, and accidental glass breakage.
Reach Out Today
Lifetime is a seasoned home improvement contractor performing flawless awning window installations and replacements. We will listen to your needs and concerns, answer all your questions, and provide you with a guaranteed quote for your project. Contact us today to learn more and schedule a consultation. We have locations in Denver, CO, Phoenix, AZ, and serve nearby cities. Be sure to ask about our financing and special offers.
Expand Your Space & Brighten Your Home With Bay Windows
Adding bay windows may be the perfect solution if you want to bring natural light into your space and make your home stylish and functional. Bay windows consist of three large windows that jut out from the exterior of your home, allowing plenty of sunlight to enter while creating a seating area to view your outdoor living space. Lifetime can install top-of-the-line bay windows from Infinity from Marvin, known for durability and beauty. Our experienced team would love to help you reach your home renovation goals.
Classic Bay Windows
The bay windows that Lifetime installs are crafted from fiberglass, which is eight times stronger than vinyl. They are customizable and available in different configurations to match your needs and your home’s aesthetic. You will be able to choose from the following:
- Different performance glass options
- An operational center window for ventilation
- Insulated pine or oak seat boards and headboards
- Various hardware and interior and exterior finishes
- Either a double-hung or casement window configuration
Infinity windows are gorgeous and built to last. They won’t expand or contract with extreme temperature changes and are leak-resistant and crack-resistant for years of excellent performance. We can help you design your ideal bay windows during your consultation.
Choose Us for Your Project
Lifetime strives to provide first-rate customer service for each window installation or replacement project. We’re a BBB Torch Award winner, and our team always maintains clear communication to keep customers informed and ensure they’re delighted with their results. Moreover, we offer a double transferable lifetime warranty covering service, labor, parts, and accidental glass breakage.
Achieve Your Home Renovation Goals
Lifetime has locations in Denver, CO, Phoenix, AZ, and we serve nearby cities. Contact our team today to schedule a complimentary consultation and ask about our financing and special offers for your new bay windows
The Experts for Gorgeous, Expansive Bow Windows
Is your home’s interior lacking natural light? Do you want abetter view of your backyard or outdoor living space? If so, consider having bow windows installed by Lifetime. We’re the premier source for bow windows from Infinity from Marvin—in fact, we’re the top dealer in the nation. Our highly trained team can perform a flawless installation or replacement of windows that will stand the test of time.
Why Bow Windows?
Bow windows feature multiple windows built on a curve to maximize the amount of natural light in your home, brighten your living space, and provide an excellent view of the outdoors. Our bow windows from Infinity from Marvin are made of fiberglass, which is eight times stronger than vinyl and will withstand extreme weather changes. They’re also customizable, and you’ll be able to choose from the following:
- Standard pine or insulated oak head and seat boards
- Four, five, or six-wide operable casement window configurations
- Various exterior and interior finishes to suit your taste
- Performance and specialty glass options
- Divided lites and hardware finishes
The Lifetime team will help you design the bow windows of your dreams. During your consultation, we’ll find a unique combination of choices and features that match your home’s architecture and aesthetic.
Focused on Integrity and Service
Lifetime is a locally owned window company. Our team proudly provides fantastic customer care, as evidenced by our BBB Torch Award. We also offer a double transferable lifetime warranty covering service, parts, labor, and accidental glass breakage. You can rest assured that your investment will be protected.
Unmatched Performance.Timeless Design.
Lifetime can help you achieve your home renovation goals with new bow windows. We put your satisfaction above all else, and our team will take the time to answer your questions and implement your ideas. We have locations in Denver, CO, Phoenix, AZ, and, and serve nearby cities. Contact us today to schedule a complimentary consultation. Be sure to ask about our special offers and financing when you call!
Transform Your Home With High-Quality Casement Windows
New windows may be the perfect solution if you’re looking to boost your home’s energy efficiency and appearance. Replacing old, outdated windows with modern casement windows can enhance your home’s look and functionality while bringing more natural light into your space. Lifetime can help—we’re the top Infinity from Marvin dealer in the nation and can install the best casement windows on the market to achieve your home renovation goals.
Our Casement Windows
Casement windows are hinged on one side and open outward using a crank. They offer excellent ventilation and are great for rooms that need lots of fresh air, such as kitchens and bathrooms. Infinity from Marvin casement windows are:
- Energy efficient
- Crack resistant
- Leak resistant
- Highly durable and withstand extreme weather changes
- Fabricated from durable fiberglass, which is eight times stronger than vinyl
- Customizable, with myriad options for finishes, configurations, colors, glass, and hardware
In addition, our casement windows feature a secure multi-point locking system for enhanced security. Our team will help you design new windows to suit your personal preferences and your home’s architecture.
Partner With Lifetime
Lifetime is dedicated to your satisfaction. We are a locally owned company emphasizing integrity and clear communication. We’re also a BBB Torch award winner, and you can trust us to perform a flawless installation for windows that will stand the test of time. We even offer a double transferable lifetime warranty covering service, labor, parts, and accidental glass breakage for your peace of mind.
A Reliable Window Company
The Lifetime team will take the time to understand your desires for your casement window installation or replacement. Contact us today to schedule a complimentary consultation and receive a guaranteed quote. We have locations in Denver, Phoenix, and serve nearby cities. Make sure to ask about our special offers and financing when you call!
Add Character to Your Home With Specialty and Custom Windows
Looking for a unique architectural feature for your home or need a custom window to fit a non-traditional space or wall? Turn to Lifetime for specialty and custom windows. We are the top Infinity from Marvin dealer in the nation, and we offer top-of-the-line products with a personalized touch. Our team can design custom windows to fit areas that traditional window styles can’t, and we can install special window shapes for a distinctive look.
Our Custom Windows & Specialty Windows
Lifetime installs the finest windows from Infinity from Marvin. These windows are fabricated from durable fiberglass, a leak-resistant, crack-resistant material that is eight times stronger than vinyl. You can have peace of mind knowing your new windows will stand the test of time and won’t expand or contract during extreme weather changes.
Fiberglass is crafted to look like real wood, and you won’t be limited in your design choices. We offer numerous interior and exterior finishes, colors, hardware, and glass options. Our team can install the following window shapes:
- Octagon
- Hexagon
- Pentagon
- Rectangle
- Triangle
- Trapezoid
We will explain our different window configurations and help you design the perfect custom windows to match your home.
Let’s Get Started
Lifetime is locally owned, community-focused, and committed to delivering excellent customer service. We’re a BBB Torch Award winner and complete every window installation and replacement with integrity and careful attention to detail. And for your peace of mind, we offer a double transferable lifetime warranty that covers parts, service, labor, and accidental glass breakage.
Contact us today to schedule a consultation and learn about our financing options and special offers. We have locations in Denver, CO, Phoenix,AZ and serve nearby cities. We look forward to working with you to design your ideal specialty windows or custom windows.
The Premier Source for Sleek Double-Hung Windows
Do you want to restore your home’s curb appeal and energy efficiency with new windows? Are you interested in the classic design and ventilation that double-hung windows offer? Turn to Lifetime. We are the top Infinity from Marvin dealer in the nation, and our experienced team can perform window installations and replacements to meet your unique needs.
First-Rate Double-Hung Windows
Double-hung windows feature two vertical moveable sashes, offering ventilation through the bottom, top, or both. We install Infinity from Marvin double-hung windows crafted from fiberglass, which is eight times stronger than vinyl. In addition, our fiberglass windows won’t leak or crack, and they resist expanding and contracting during extreme weather changes.
Fiberglass is crafted to look like wood, offering a beautiful, traditional aesthetic while providing long-lasting protection for your home. And you won’t be limited in your design choices—our team will help you customize your new windows with numerous color, finish, hardware, and glass options to match your home’s architecture and color palette.
Why Choose Us?
Lifetime is a locally owned, community-focused home improvement company. When you partner with us, you’ll enjoy personalized customer care and clear communication—we’re a BBB Torch award winner and emphasize integrity in our business. Moreover, we offer a double transferable lifetime warranty covering parts, service, labor, and accidental glass breakage, so you can have peace of mind that your investment will be protected for years.
Unmatched Performance.Timeless Design.
Lifetime is dedicated to your satisfaction and will take the time to answer your questions and listen to your ideas. We have locations in Denver, Phoenix and serve nearby cities. Contact us today to schedule a complimentary consultation and get a guaranteed quote for your double-hung windows. Be sure to ask about our financing and special offers when you call.
Choose Stylish Round Top Windows for a Clean Aesthetic
If you want to add attractive, high-performance round-top windows to your home, there’s no better partner than Lifetime. We’re the top Infinity from Marvin dealer in the nation—a reputable company known for their durable, beautiful window designs—and our expertly trained technicians can perform window replacements and installations to meet your unique needs and aesthetic desires.
Our Round-Top Windows
Lifetime installs windows from Infinity from Marvin. This manufacturer crafts round-top windows from fiberglass, which is eight times stronger than vinyl. Round-top windows add an attractive aesthetic feature to your home and can be installed above a new or existing window. These windows come in numerous configurations, and their features and benefits include the following:
- Increased natural light to brighten your home’s interior
- A wide selection of 20 window shapes, such as half-round, circle, and quarter styles
- Direct glazed glass for superior durability and strength
- Ability to be combined with double-hung windows, casement windows, picture windows, and more
You can rely on Infinity windows—they won’t leak, crack, expand, or contract during extreme weather changes, providing years of protection for your home. Fiberglass is also available in various colors, interior and exterior finishes, and glass options. Our team will help you select the perfect combination of features to match your home.
A Locally Owned, Community-Minded Company
Lifetime focuses on integrity, personalized customer service, and clear communication. We’ll listen to your ideas and answer your questions—we want you to feel confident in your decision to work with us. We also offer a double transferable lifetime warranty that covers parts, service, labor, and accidental glass breakage for your peace of mind.
Achieve Your Home Renovation Goals
Lifetime is dedicated to your satisfaction. We’re a BBB Torch Award winner, and we have locations in Denver, CO, Phoenix, AZ, and we serve nearby cities. Reach out to us today to schedule a complimentary consultation to discuss your new round-top windows. Make sure to ask about our financing and special offers.
Single-Hung Windows Combine a Classic Style with Modern Performance
When you choose Lifetime Windows & Siding for your window replacement in Denver, Colorado, or Phoenix, Arizona, you’ll be able to select from a wide variety of styles, including single-hung. Single-hung windows are a traditional favorite and work great as a singular window or in a series of windows. For instance, they are often included at either end of a picture window to create bay windows. As a top Infinity from Marvin dealer in the nation, we install this reputable manufacturer’s high-performance single-hung windows.
Single-Hung Windows Explained: A Simple & Elegant Choice
Single-hung windows feature an upper fixed sash and a lower moveable sash. The lower sash can be lifted open to allow fresh breezes into your home. These windows are typically installed in living rooms but are also viable options for bedrooms or other living spaces where you value natural light and fresh air.
Advantages of Single-Hung Windows for Your Home
At Lifetime, we want you to get the most value from your investment in window replacement. That’s why we proudly install windows by Infinity from Marvin. Single-hung windows from this notable brand feature the following:
- Ultrex fiberglass material – Infinity from Marvin single-hung windows are constructed with Ultrex fiberglass, a high-performance material known for its durability and strength. This material resists warping, fading, and cracking, providing long-lasting performance.
- Exceptional energy efficiency – These windows feature advanced energy-efficient technologies, including low-E glass and argon gas fills. This helps in reducing heat transfer, maintaining a comfortable interior temperature, and contributing to energy savings.
- Low maintenance – Ultrex fiberglass is low-maintenance and doesn’t require frequent painting or refinishing. The windows retain their color and finish over time, reducing the need for upkeep and saving homeowners time and money.
- Durability – Ultrex fiberglass is eight times stronger than vinyl, making Infinity from Marvin windows highly durable and able to withstand various weather conditions. This strength contributes to the longevity of the windows.
- Custom sizing – These single-hung windows can be custom-sized to fit specific openings, providing a tailored solution for homeowners with non-standard window dimensions. This customization ensures a precise and secure fit.
- High-performance hardware – These single-hung windows come equipped with high-quality hardware for smooth operation and enhanced security. This includes durable locks, handles, and other components that contribute to the overall functionality and safety of the windows.
- Low expansion and contraction – Ultrex fiberglass has low thermal expansion and contraction rates, ensuring that the windows maintain their structural integrity in different temperatures. This stability prevents issues like seal failures and air leakage.
- Sound reduction – The construction and materials used in these windows contribute to sound reduction, helping create a quieter and more comfortable living environment by minimizing outside noise.
- Sustainability – Ultrex fiberglass is made from sustainable materials and is energy-efficient, making Infinity from Marvin windows a more environmentally friendly choice. The durability of the windows also reduces the need for replacement, further contributing to sustainability.
Rely on Us for Single-Hung Window Installation
Lifetime makes it easy to get started with free consultations and guaranteed pricing. Plus, we back our work with a transferable lifetime warranty for your peace of mind. To learn more about the single-hung windows we offer, contact us today. We are proud to serve homeowners in Denver, CO, and Phoenix, AR.
Your Source for Classic, Easy-to-Operate Slider Windows
Are your windows old, worn out, or difficult to operate? Do you want gorgeous new windows that open and close smoothly and offer superior ventilation and natural light? If so, consider slider windows from Lifetime. Our slider windows from Infinity from Marvin feature a sleek design, provide a wide view of your outdoor living area, and come in various sash styles, configurations, and finish options. Our team would be happy to help you design the perfect windows to restore your home.
Our Beautiful Slider Windows
Slider windows glide open effortlessly to let fresh air into your space. They feature an easy-to-operate sash roller system that seals tightly to keep rain and drafts out of your home. Lifetime sources slider windows from Infinity from Marvin, a manufacturer known for windows that are:
- Durable
- Energy efficient
- Offered with performance glass and specialty glass options
- Fabricated from durable fiberglass, which is eight times stronger than vinyl
- Available in various styles, configurations, hardware, finishes, and colors to suit your personal preferences
Our experts will help you find the perfect combination of features to fit your home’s architecture and aesthetic.
Why Lifetime?
Lifetime is locally owned and committed to ensuring 100% customer satisfaction. We place a high value on integrity and honesty in our business, and we’re also a BBB Torch Award winner. You can rely on us for quick, flawless window installations and replacements with products that will last for years to come. Moreover, we offer a double transferable lifetime warranty that covers parts, labor, service, and even accidental glass breakage.
Let’s Get Started
Lifetime is the company to choose to install your new slider windows and restore your home’s curb appeal. We will take the time to listen to your needs and maintain clear communication throughout your project. Contact our friendly team to schedule a consultation and get a guaranteed quote for your window installation. We have locations in Denver, CO, Phoenix, AZ, and serve nearby cities.
Here for you
Experience superior products and customer care with us. As a locally owned company, Lifetime is dedicated to our community and ensuring you love where you live.
Our teams of experts are here to help
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