5.0 ★ Google Rating, James Hardie #1 Elite Preferred Contractor in the state,
BBB A+ Rated, Recipient of the prestigious 2025 James Hardie President’s Club Award.
We can’t wait to partner with you to transform your home
USER DETAILS
PROJECT DETAILS
We’ve helped Colorado homeowners build smarter, safer, and fire-resilient — let our expertise protect yours.
Building Relationships Since 1999
Welcome to GS Exterior Experts — Colorado’s trusted exterior remodeling contractor since 1999. We are a family-owned and operated company providing professional exterior remodeling services, specializing in high-quality siding installation, replacement windows, roofing services, and custom decks for residential and commercial properties throughout Littleton, Parker, Centennial, Denver, and surrounding areas.
Denver-metro homes face severe hail, intense high-altitude sun, and growing Front Range wildfire risk. We build for all of it — impact-resistant roofing, fire-resistant James Hardie fiber cement siding that resists Colorado sun-fade, and exteriors built to the new Colorado Wildfire Resiliency Code.
As a certified James Hardie siding contractor, we deliver low-maintenance siding solutions in styles and colors to fit any home. Our energy-efficient window replacements improve comfort and reduce utility costs year-round.
We also specialize in insurance claim storm restoration, guiding you through the claims process to ensure you get the repairs you deserve — without the stress.
Locally Owned & Operated
Our mission is to deliver the best in customer service through dedication and honesty to get the job done for our clients.
Google 5–Star Rating
We're proud of the reputation we have built serving homeowners throughout the Denver area since 1999.
#1 James Hardie Installer
We have been recognized by James Hardie as #1 Elite Preferred Hardie siding contractor in the state.
Elevate your home improvement experience with flexible financing options from GS Exterior Experts.
AWARDS & AFFILIATIONS
Cost depends on home size, materials, and scope. In the Denver metro, hail damage found during the work can affect pricing, but it’s often covered by insurance.
New siding, roof replacement, and windows deliver the best return. Fire-resistant fiber cement siding and impact-resistant roofing add the most value here, since they handle Colorado hail and wildfire concerns.
Mixing too many materials, poor color coordination, and ignoring maintenance. In Colorado, choosing products that can’t take our high-altitude sun and hail is the costliest mistake.
Most take several days to a few weeks, depending on size and weather. Colorado’s hail, snow, and wind can shift timelines, so we plan around them.
All at once gives a consistent look and lower labor costs. For storm-damage work, it also lets us bundle everything into one insurance claim.
