Call us at (720)508-4385

Millennium Windows & Siding

Installation Services

Work directly with the owners

Why pay a salesperson's high commission? Our customers save on average 20% below their other bids.

Professional Windows and Siding Installers

Professional Replacement Windows and Siding Installers

Windows and siding installation is not a job for amateurs. Paying someone for installation does not make them real professionals. Millennium Windows & Siding uses experienced installation professionals that will maximize the long-term value of your investment in replacement windows and new siding.

Siding and windows installation projects completed by Millennium Windows & Siding are backed by the personal attention and supervision of our owners, who have a combined 22 years of experience in this industry.

Unlike other companies that rely on high-pressure sales people to generate business, Millennium Windows & Siding has been built on the installation expertise and craftsmanship that our team puts into every home improvement project. Our company has succeeded because of our many recommendations from satisfied customers.

Our Crews Work Year-Round

New windows and siding are one of the best ways to improve the energy-efficiency and appearance of your home, so Millennium Windows & Siding won’t make you wait for warm weather for your installation to begin. Count on us to deliver precision installation all year long — within a few weeks of completing the project agreement.

professional windows and siding installers

Get a free quote today!

Request A Quote
At Millennium Windows & Siding, you work directly with the owner eliminating the salesman's high commission.

Once a contract is signed and approved, Millennium Windows & Siding will not change the price of your project for any reason. There will never be any additional fees and/or costs added to your home project.

Denver Area? Call 720-943-7933

Colorado Springs? Call 719-225-1723

Our products are backed by our true 100% lifetime warranty* with no trip fee and no labor fee!

* Includes window frame, operators, seal and glass. Call (720)508-4385 for details.

An investment in new windows or siding from Millennium Windows & Siding will increase the value of your home, because our warranty transfers to new the homeowners when you sell.

Better Business Bureau Accredited Business
Google 5 star reviews
Angie's list
Yelp 5 star rating