About Us

Making your Colorado property better with our professionally installed windows and doors.

We are a privately held, family owned and operated independent construction company, for more than 35 years. We sell, furnish and install most major manufactures: Marvin, Marvin Integrity Andersen 100, 200,400, A series, Andersen Eagle, and Pella windows and Doors. Serving Glenwood Springs to the greater Denver, Colorado areas...

We are a licensed and insured Colorado windows and doors Contractor. Our Installers are certified. We do not sub our work out.

We have installed more than 10,711 windows and doors in homes around the greater Colorado area.

The facts, just the facts

More quality for much less.

We cost less than Andersen’s Renewal by Andersen (Window Warmth, LLC) contractor Grade Fibrex Windows. Sold at RBA Denver and Home Depot.

Marvin Clad, Marvin Integrity and Andersen Eagle and Pella Windows and Doors are high quality and some of the largest US made manufacturers in North America

Our manufactures provide a transferable glass, frame and installation warranty.

The industry currently manufactures windows and doors being made from wood, wood clad, steel, aluminum, aluminum clad, vinyl, Fibrex and finally Extruded aluminum wood Windows and composite framed protruded fiberglass framed Windows.

We specify altitude correct glazing (thermos-pane glass). Multiple coatings of Silver Oxide (LOW E3)/Multiple coatings of Titanium dioxide (UV protection). Argon gas filled below 6,000 feet. Simply (PG50) Performance Grade 50 rated. More accurate grading than U-factor or R value.

In Colorado, Wood clad rolled formed aluminum rots from outside in. Plastic (vinyl) and Fibrex fades/oxidizes/expands & contracts at a faster rate and subsequently has a shorter life span. They also Warp, twist with heat, and gets brittle, cracks, and splits with UV rays.

The glazing spacers that we use are one-piece stainless steel, which is 8,000 times less conductive than aluminum.

Marvin Clad and Andersen Eagle windows and doors are manufactured with thick, heavy extruded aluminum exterior frames. Exterior extruded aluminum frames are as thick as a quarter, with a thermal break between the wood interiors.

Marvin Integrity windows and doors are an all protruded fiberglass exterior frame, with or without wood interior. Integrity windows and door frames are as strong as steel.


I come to you as a certified manufactures rep, not a handyman that buys windows and doors from Lowes or Home Depot.

We sell, furnish and install the highest quality Andersen Eagle Marvin Clad and Marvin Integrity Windows and Doors.

We order Windows and Doors that are custom made to exacting sizes within 1/64 inch and gives many choices.

One call to Colorado Rockies Windows and Doors and you'll be able to start using your patio and sliding doors again. Dial 970-977-9900 (Office) or 720-626-0900 (Cell/Text) today to learn more.

We prepare your home for installation, install, clean up and dispose of all your old Windows and doors. We obtain building permits (at no charge to you) and assist with your HOA if any. We will spend time instructing you how to open close and maintain your new windows and doors to insure your ultimate satisfaction.

The Integrity window frame can withstand temperatures from -40 degrees up to 328 degrees without twisting or warping.

The Marvin Integrity is 4 times stronger then Fibrex, and 8 times stronger than vinyl. The Marvin Integrity window is energy efficient from -20 degrees to 190 degrees. Marvin Integrity saves more than 100 billion board feet of lumber and does not decay. Exterior is not affected by water or weather. Not effected by hail.

Marvin Integrity saves more than 100 billion board feet of lumber, and does not decay. Exterior is not affected by water or weather. Not effected by hail.

Marvin comes with three verifications: Energy Star certified/Green Seal certified/NFRC rated with the highest rating. Performance Grade (PG rated “50” Measure air infiltration/insulating value/energy efficiency.

Areas Serviced

We Service the following areas and surrounding.

Colorado Rockies Windows and Doors is proud to offer the best in services to the following locations.

  • Glenwood Springs
  • Eagle
  • Vail
  • Avon
  • Edwards
  • Frisco
  • Breckenridge
  • Georgetown
  • Silverthorne
  • Copper
  • Keystone
  • Silver Plume
  • Idaho Springs
  • Black Hawk
  • Evergreen
  • Golden
  • Morrison
  • Lakewood
  • Arvada
  • Boulder
  • Denver
  • Littleton
  • and surrounding areas


Call us at

Office: 970-977-9900

Cell/Text: 720-626-0900

Available for all types of single, double and triple pane glass replacement and maintenance in the greater Denver and beyond, Colorado Rockies Windows and Doors is your local choice.

We offer 24Hrs Emergency Services

Work Hours

MON-FRI 9:00am-7:00pm,
SAT 8:00am-4:00pm

Contact Info


18455 W Colfax Ave
Golden Colorado 80401

Office: 970-977-9900

Cell/Text: 720-626-0900


We Accept