Energy Efficient Replacement Windows for your Denver area Home!

Purchasing replacement windows is a significant investment. At Pinnacle, we offer a huge selection of vinyl windows, wood windows and fiberglass composite windows from some of America’s top manufacturers.

We believe in educating and informing our customers about the different window options available. There are many frame type and window operation choices, colors and glass types for a homeowner to choose from, and we are here to guide you through the process.

We’ll review the pros and cons of all windows, and answer your questions openly and honestly. Let our  specialists help you choose the right combination of window styles, features, hardware, accessories and more for your home.

You will receive the highest standard of service

  • Impeccable service
  • On-time delivery
  • Superior quality
  • TRUE Lifetime Warranty that doesn’t compare in today’s market place!

We have an A+ Rating with the BBB!

We also hold numerous Certifications for proper window installation methods and practices.

We only use AAMA Certified Master Installers!

This ensures that your new windows and doors are installed with the utmost stringent guidelines and installation practices set forth in the building industry.

What Types of Replacement Windows Are There?

Double Hung Windows

Double Hung windows are easy to maintain with classic aesthetic styling. They are an easy choice for improving curb appeal and quality of life.

Sliding Windows

Sliding  windows offer contemporary styling with a horizontally moving sash.

Casement and Awning Windows

Featuring a slim designed frame to maximize glass area. They can be opened fully for maximal ventilation. Awning windows pivot smoothly on top-mounted hinges. Casement windows open out from their sides, anchored by hinges.

Picture Windows

A great choice to frame that beautiful view, picture windows come in many sizes and shapes. Combined with other window units, the possibilities are endless.

Bay Windows and Bow Windows

Bay and bow windows add architectural interest and an enhanced degree of view. Built to custom opening sizes, bays and bows work beautifully in almost any room in your home.

We sell windows from these fine manufacturers:

Amerimax, Andersen, Cascade, Jeld-Wen, Milgard, Pella, Simonton and Weathershield

Through our partnerships with the top-rated manufacturers in the window and door industry, we have thoroughly evaluated each manufacturer to make sure that they are well established and reputable, passing this confidence on to our customers.

Contact us today to schedule your Free Replacement Window Estimate!