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The Most Trusted Local Door Contractor

The Most Trusted Local Door Contractor

Are you trying to make a stunning statement for your home with new entry doors? If yes, the door contractor to turn to for your project in Denver, Colorado, or Phoenix, Arizona, is Lifetime Windows & Siding. We are proud to provide Infinity from Marvin doors, which introduce a new standard of excellence in the world of entrance systems. Crafted with precision and innovation, Infinity entry doors offer a wealth of benefits for homeowners to enjoy, including:  

  • Durability – The materials used, combined with Marvin's commitment to quality, result in entry doors that resist wear, weathering, and the impact of daily use, ensuring a lasting and attractive entrance for years to come.
  • Security – Engineered with advanced locking mechanisms and sturdy materials, these doors provide an additional layer of protection, promoting peace of mind for homeowners.
  • Energy efficiency – These doors have features, such as advanced weatherstripping, low-E glass, and fiberglass frames, that will help insulate your home. This will stabilize its interior temperature year-round, reducing the strain on your HVAC system and potentially lead to lower monthly energy costs.  
  • Customizable beauty – Personalization is key, and Infinity from Marvin provides a range of design options to suit every taste and architectural style. Whether you prefer the timeless appeal of a traditional entry door or the sleek lines of a modern design, Infinity offers a variety of finishes, hardware, and glass options to create a customized entryway that reflects your unique style.  

Furthermore, as your door contractor, we will stand behind your new doors with an unbeatable lifetime warranty, so you can have total peace of mind knowing your investment is thoroughly protected.

Home Improvement Services

Durable and Energy Efficient Upgrades

We install Infinity by Marvin replacement windows. These energy-efficient windows feature fiberglass frames that look like real wood but are considerably stronger. In fact, our windows will not expand or contract with extreme temperature changes, ensuring lasting performance.

Long-Lasting Beauty for Your Home’s Exterior

Siding replacement is an investment in the protection and curb appeal of your most treasured asset. We install James Hardie fiber cement siding—a product so durable that it is virtually indestructible. Your new siding will maintain its beauty for decades to come.

Elegant Entryways for Your Outdoor Space

Do you love spending time on your patio or deck? If so, allow us to install beautiful patio doors for your outdoor space. Our patio doors feature elegant frames and the same low-E glass as our windows to improve your home’s energy efficiency.

Bathe in Luxury With a New Tub or Shower

If your bathtub or shower is old, hard to clean, or just not working for you, we can refresh your bathroom with a new model. Our bathtubs and showers are made from damage-resistant acrylic, and they are available with numerous contemporary design options.

Equip Your Home With Lasting Protection

Is your home due for a new roof? If so, we can replace it with high-quality roofing materials, such as asphalt shingles, synthetic shake or slate, or metal tiles. We also offer solar shingles that will not only protect your home from the elements but will also improve its energy efficiency.

Masterfully Crafted Patio Doors

As your door contractor, we not only provide entry doors, but also offer patio doors by Infinity from Marvin. These doors offer all the benefits that our front doors do, making them the perfect addition to your home in Denver, CO, or Phoenix, AZ. During your free consultation, one of Lifetime’s friendly representatives will help you select from numerous design options to customize your new patio doors. Options include interior and exterior colors, hardware, and grilles. Additionally, the following styles are available for your new patio doors:

  • Bi-fold – Bi-fold doors are innovative and stylish door systems that fold and stack neatly to create a wide opening, seamlessly connecting indoor and outdoor living spaces.
  • Inswing French – Inswing French patio doors are elegantly designed doors hinged to swing inward, adding a touch of classic charm to your home while providing easy access to outdoor spaces.
  • Sliding French – Sliding French patio doors combine the timeless aesthetics of traditional French doors with the space-saving functionality of sliding doors, effortlessly bringing elegance and accessibility to your indoor and outdoor spaces.
  • Sliding – Sliding patio doors are sleek and space-efficient door systems that glide smoothly along a track, making them a classic choice for any home.

Learn more about our patio doors and front entry doors by contacting Lifetime Windows & Siding today. We have locations in Denver, CO, Phoenix, AZ and serve nearby cities.

Read Our Reviews

It takes a special home remodeling contractor to consistently deliver best-in-class customer service. Read about our customers’ delightful experience working with Lifetime, then contact us today to get started with your project.

"Lifetime Windows did an outstanding job replacing our windows & sliding patio door. The crew are definitely skilled craftsmen who have experience in this industry. There was no damage, they made sure everything was sealed properly, were courteous, and did an excellent job cleaning up. The project went smoothly with great efficiency..."

Mike L.

"We had 16 windows and a patio door replaced by Lifetime and the whole process, from the first meeting and estimate all the way through the final installation, was great!  The sales and office staff were great with communication and the installation crew did an excellent job..."

Travis H.

"Interviewed multiple companies. Lifetime made us the most comfortable and their quote was pleasant for the size of our project. The window crew was phenomenal and did beautiful work! All the windows fit and work perfectly! Can’t wait to have the siding project completed!"

Randy M.

"I had Lifetime Windows & Siding install James Hardie siding on my house. I am very happy with the product and the crew that installed it. The house looks amazing and the crew did a great job of clean-up afterwards. They have been doing this for a long time, and it shows. They work hard and pay attention to details..."

Tim M.

"Lifetime was awesome! I am an architect and am very picky about the work that is done to my house. Everyone was very professional through the whole process from sales to install, and their pricing beat out other competitors. The install crews were very skilled, kind and respectful, and they always made sure everything was taken care of..."

Christine R.

Trusted by some of the biggest names in the business!