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Our Story

In 2009, Peter Svedin had a vision. With deep knowledge, sales, and customer service experience in windows, he already understood and appreciated the great value of high-quality products. But something was missing. He wanted more.

Working out of his one-bedroom apartment, the entrepreneur toiled away until he devised his winning formula. Peter believed in providing the highest products and highest standards while also ensuring lifetime service with a labor guarantee. He believes people deserve the best service at the best price.

Peter took to the streets. He was relentless in promoting his company’s ideas, going as far knocking on doors around job sites to introduce crews to the quality they could provide.

By always demonstrating an ambition to learn, adapt to the latest innovations, provide exceptional customer service and installations, and tirelessly promote, Lifetime Windows & Siding has grown to a $65 million corporation with over 75 employees and two markets in the areas of Denver, CO and Phoenix, AZ. The company never once has wavered in our core value of quality before quantity. We believe in providing our very best for a lifetime.

Giving back

Annual Lifetime Golf Classic benefitting Firefly Autism

Learn more about this great event supporting a valuable community asset in Firefly Autism. See how you can sponsor this year's event!

Community, family, and customer service

Check out @cbscolorado's feature on Lifetime Windows and Siding in their #CompaniesforColorado segment with Peter Svedin, Founder and CEO of Lifetime.

Meet Our Team

Why Choose Us?

The Lifetime Difference

From the outset, Lifetime’s mission was to give every one of our customers the ultimate home remodeling experience. And because putting quality before quantity is our home value, our idea of the perfect customer experience lies not with the number of services we offer (though we can transform much of your home) but the manner in which we offer them. That means you can expect:

· Clear communication with rapid response times

· Dedicated experts assigned to oversee your project and ensure its success

· Locked-in pricing once an order is approved (with Lifetime covering any unforeseen costs to finish the job)
. Our double transferable lifetime warranty protecting your investment now and for the next owners of your home


We're hiring!

Check out our open positions for each of our markets!

Come See Us! Local Businesses With Local Showrooms

"Your home is a reflection of you. You should give your greatest investment the greatest looks possible."


Our Award-Winning Approach

Ensuring customers’ complete satisfaction is and has always been Lifetime’s top priority. Between our use of top-caliber products, our wide variety of services, our craftsmen’s exceptional work, and our commitment to going above and beyond your customer experience expectations, we’ve been able to build trust in the communities we serve. Furthermore, we’ve also been able to earn awards, accolades, and certifications including:

· The Torch Award for Ethics

· A+ rating from the Better Business Bureau

· Certification from industry leaders Infinity by Marvin and James Hardie

· ENERGY STAR® certification

· Recognition as the top Infinity by Marvin dealer in the United States in 2023

Lifetime's Community Giving

Stout Street Foundation helps residents in desperate need find employment, stay sober, and get their lives back on track.

Lifetime provides employment and mentor opportunities for individuals that are currently in the program or have recently graduated. Many of our most cherished and successful employees have come to Lifetime through the Stout Street Foundation.

Food Bank of The Rockies distributes approximately 56 million meals each year to people and families who are hungry in Colorado and Wyoming.

Since 2021, Lifetime has donated more than 1.4 million meals to those in need through financial contributions and on-site volunteerism.

Veterans Community Project of Longmont refuses to let any Veteran fall through the cracks. From providing housing to offering walk-in support services, they’re there for everyone who took the oath to serve America.

Lifetime and partners have provided all roofing products needed to help build homes for the Veterans tiny home community and we look forward to the next National project!

Firefly Autism has a vision of a world where individuals on the autism spectrum, their families, and communities have access to the support and solutions needed to maximize learning potential and individual success. Firefly offers an invaluable campus and community where children on the autism spectrum can learn and have their needs supported.

Lifetime supports the Firefly community by providing them with campus building solutions and annual event sponsorship opportunities.

Colorado Rockies charitable focus has been dedicated to keeping kids in the game
physically, academically and mentally. The mission of the Colorado Rockies Baseball Club Foundation is to support our disadvantaged and at-risk youth.

Lifetime is proud to annually partner with the Rockies to sponsor the program Strike Out Hunger. For each strike out, Lifetime provides approximately ten meals to Food Bank of the Rockies.

Denver Zoological Foundation, the Denver Zoo, supports wildlife field conservation
efforts in Colorado and worldwide.

Lifetime hopes that our gift of sponsorship is also paving the way for the next generation of people that appreciate wildlife. As a non-profit organization, the Denver Zoo offers unparalleled, important work to educate and inspire animal lovers of all ages with the goal of inspiring future wildlife conservation enthusiasts and activists.

I had Lifetime install new Infinity by Marvin windows and they are beautiful! They called me prior to the appointment to let me know they were on the way. Our installers were very professional. I would definitely recommend Lifetime Windows and Siding.

Aaron R.

I contracted Lifetime Windows & Siding to add new siding to my home. The experience was great, the Project Manager went above and beyond to ensure the project went smoothly, including regular communication and almost daily visits to my home. I highly recommend Lifetime Windows & Siding!

Tracy K.

We had James Hardie siding, soffit and fascia installed after removal of the existing. The crew he used was top notch and the work was outstanding. We are very pleased with our choice of Lifetime Windows & Siding to perform the work, and highly recommend their team for your next project.

Chris S.

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! Very much looking forward to the work quality of Lifetime to further our renovation project!

Randy M.

My experience with Lifetime was the best! The experience of the installers was impeccable. They came, they conquered and were gone...taking all the messes with them. They were kind, courteous and ambitious! I love my new shower and would highly recommend, Lifetime!

Linda S.

Lifetime was fantastic. The quality of the product and installation far exceeded our expectations. The staff were incredibly friendly and took pride in the work they did. They also ensured that we were happy with the installation that that everything looked the way it should. It is absolutely amazing the difference a new roof looks on your home. We are thrilled with our purchase and would absolutely recommend this company! Lifetime was fantastic. The quality of the product and installation far exceeded our expectations. The staff were incredibly friendly and took pride in the work they did. They also ensured that we were happy with the installation that that everything looked the way it should. It is absolutely amazing the difference a new roof looks on your home. We are thrilled with our purchase and would absolutely recommend this company!

Demi B.

We had 10 windows installed to replace 80-year old windows that had wood trim. Every step of the process was smooth and timely. I was particularly worried about the color of the wood and windows but the finishing manager consulted and chose the perfect stain to complement our baseboards and old oak floors. Every team member did an excellent job. They were friendly, polite - and loved our dog!

Jaycee C.

We loved Lifetime from start to finish. Great service. We received updates through out the whole process. We never had to call & ask what's happening. The installation was flawless & the installers were beyond great. We will use Lifetime for our window replacement project in the future!

Barb Z.

My experience was with Lifetime was amazing! The communication between the company and myself was great. They were available and eager to answer all my questions. The project manager was awesome, knowledgable and really invested in my experience. He walked me through the whole process, and made me feel secure about the steps along the way. The foreman and his crew went above and beyond to be respectful, clean up after themselves and treated our property like it was their own. The experience was great and we are very happy with our new roof!

Allison F.

Lifetime was very helpful in designing the James Hardie layout for a mountain modern look! We loved the crew that installed the siding and we had no issues- product was available and the crew was responsive to our questions about the process! Overall very, very happy with our results: new siding and new gutters!

Brad H.

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. We immediately were able to see & feel the heat reduction with the new Marvin windows. The whole experience was fantastic.

Mike L.

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. I would highly recommend Lifetime Windows and Siding!

Christine R.

We had a great experience with Lifetime Windows and Siding! We replaced our siding with James Hardie siding, this was a big project and took several days. The crew was very professional and always available. Their work was detail orientated and they cleaned everything up, even using a metal detector to find any small pieces. You can tell they knew exactly what they were doing. Lifetime is big on customer service!

Jeanette L.

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. I'm no expert on siding, but I feel that the price was reasonable, and the quality is excellent. I recommend the James Hardie product and Lifetime Windows & Siding.

Tim M.

Most outstanding with Lifetime was the degree of professionalism and standing behind the workmanship, the materials, and the promise of the finished product. Once the project was started, it was most efficiently brought to completion without a hitch. All questions and concerns were addressed to my satisfaction and I am fully confident Lifetime will live up to their guarantees.

Andrew D.

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. The installers were efficient, courteous, professional, and knowledgeable in their work. Overall, a much easier experience than I was expecting, and a great company to work with. Highly recommended!

Travis H.

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