Window Replacement & Installation in Twin Falls Idaho

Your Twin Falls Window Replacement Experts!

Are you looking for a reputable, talented and experienced window installer Twin Falls? Rocky Mountain Exteriors has you covered! With more than 35 years in the exterior remodeling industry, we have the experience and track record that are needed to deliver superior results every time.


Unlike our local competitors, we even have our own line of windows, The Cathedral Series, which delivers advanced technologies, innovative design features, exceptional energy efficiency, superior craftsmanship and unbeatable value. The manufacturer of our windows has been producing the finest in windows since 1946. When paired with our expert installation services, our windows dramatically enhance the appearance, comfort, quality, value and energy efficiency of a home.

Serving Twin Falls, Burley, Jerome, Star and Sun Valley Idaho

Get a FREE Window Replacement Estimate!

A few reasons why you’ll love us:

1.) Licensed, bonded and insured – Free Estimates
2.) BBB member with A+ rating
3.) Certified Window Contractor – Door Contractor
4.) Locally owned and operated
5.) Debt free. We pay our suppliers within 30 days
6.) We provide the best windows, workmanship, and warranties available
7.) Experienced project leaders, estimators, and installers
8.) Committed to clean job sites and fast, efficient, perfect instllation
9.) Dedicated to your safety – every employee who enters your home will have passed a criminal background check
10.) Free in home no-obligation quotes
11.) Easy financing options
12.) All windows, doors and workmanship is 100% guaranteed

Expert Window Installer in Twin Falls, ID

Shopping for new windows Twin Falls doesn’t have to be difficult. When you contact Rocky Mountain Exteriors for a free, no-obligation quote for new windows, you kick-start one of the easiest and most streamlined window installation processes around. We know how confusing it can be to identify the right replacement windows, and we work closely with you to help you find options that suit your needs, preferences and budget. From there, our team comes out and professionally installs your new windows, using proven techniques that ensure that you get the most out of your investment.

About Our Windows

Window Replacement and Windows Twin Falls Idaho

Cathedral Series Windows

Rocky Mountain Exteriors provides you with the very best replacement windows available for your home. At affordable pricing.

Our proprietary line, The Cathedral Series, is designed and produced by a manufacturer who has more than 70 years of experience. Design options range from contemporary to traditional, and you can take your pick from a wide array of colors, configurations, glass styles, grid patterns and more.

In terms of craftsmanship, these windows are second to none and boast fusion-welded frames and sashes; constant-force balance systems; heavy-duty hardware and multi-chamber designs for superior insulating properties. Attractive, durable, highest energy efficient and featuring some of the best warranties in the industry, our windows are an exceptional investment in any home.

View Our Cathedral Series Window and Patio Door Brochure

Contact Us Today!

When it comes to window installation Twin Falls, you can’t do better than Rocky Mountain Exteriors. If you’re looking for a great way to improve the energy efficiency, appearance, comfort and value of your home, our professional window installation services will do the trick. We’re locally owned and operated, fully licensed, bonded and insured and have an A+ rating with the Better Business Bureau, and that’s just the tip of the iceberg in terms of the benefits you’ll enjoy by working with us. Call today to request a free, no-obligation quote.

Call Us Today for Your FREE Assessment!

Highest Quality Replacement Patio Doors

Cathedral Series Patio Doors

Cathedral Series Patio Doors

Selecting the best patio door for your home is easy when you have three superb styles to choose from: Contemporary, French and Classic.

Each door is beautifully detailed to achieve a distinctive look while providing a powerful shield against inclement weather and energy loss.

Sliding Glass Doors – Features and Benefits

  • Two distinctive styles to choose from: Contemporary and Classic.
  • Mainframe and sash feature a double-wall design and multi-chambered construction for added strength
  • Dual internal/external weather stripping on the sash ensures optimal energy efficiency
  • Precision-engineered tandem roller system ensures easy and quiet door operation
  • Mainframe joints incorporate closed-cell foam gaskets for superior sealing
  • Heavy-duty extruded aluminum screen features four adjustable rollers for smooth gliding
  • Available in 2-, 3- and 4-panel configurations

French Doors – Features and Benefits

  • Fusion-welded construction delivers long-lasting strength and durability
  • Choose from 4-9/16″ or 6-9/16″ frame depth, both with 1″ wide integral nailing fin for added structural integrity
  • Heavy-duty stiffener in all frame and panel members
  • Three-point locking system for a tight seal and added comfort
  • Available in single, double or French-style doors

View Our Cathedral Series Window and Patio Door Brochure

Highest Quality Replacement Entry Doors

Rocky Mountain Exteriors also offers the very best custom home entry doors, replacement and installation services:

View Entry Doors and Replacement / Installations Services 

Schedule Your Free
In Home Estimate!

Call: (208) 955-6818

Our inspections and estimates are always free and informative. There is no obligation.

Or use our:

Quick Contact Form

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Contact Us

Rocky Mountain Exteriors
530 Blue Lakes Blvd N #E
Twin Falls, ID 83301
Phone: (208) 595-5072 Get Directions

Service Areas

Southern Idaho

Boise · Meridian · Nampa · Caldwell · Middleton · Star · Eagle · Emmett · Fruitland · Mountain Home · Sun Valley · Twin Falls · Burley · Jerome

Eastern Oregon

Ontario · Baker City · La Grande · Union · Cove · Imbler · Summerville · Elgin · Enterprise · Joseph · Wallowa & Wallowa Lake Oregon

Boise ID
Twin Falls ID
La Grande OR

Our inspections and estimates are always free and informative!

We provide a full assessment of your project and discuss your goals and budget. There is no obligation.

Simply call: (208) 955-6818 or use our Quick Contact Form below:

*No solicitors please