Rated 5 / 5 from 18 reviews
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GS Exterior Experts GS Exterior Experts is an exterior home improvement company specializing is siding, windows, stucco, stone, and roofing. We are a full exterior contractor specializing in commercial and residential exterior services surrounding the Denver metro area. Established in 1999, our business started with new construction siding and window installation for established businesses like Shea Homes, and James Hardie.

Over the course of the next few years we worked exclusively on new home construction before venturing off to re siding and replacement window home improvements. Our mission is to deliver the best in customer service through dedication and honesty to get the job done for our clients.
Business details
  • Year established: 2013
Services
Roofing
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GS Exterior Experts is a trusted, locally-owned Colorado Replacement Roofing provider. We provide the best in residential roofing solutions. Our experienced team of professionals has installed many of roofs in the Colorado area.
Woodtone
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You have a vision. Exterior Experts has the products to bring your vision to life. Because we specialize in Woodtone exterior siding. Woodtone products are known across the Nation for strength, durability, and long lasting performance.
Energy Star
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Thanks to advances in technology, today's ENERGY STAR certified windows, doors, and skylights offer greater savings than ever before. Just look for the ENERGY STAR label. Save energy and money.
Fiberglass
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Integrity's windows and doors are made with Ultrex Fiberglass, an innovative material created 20 years ago. For two decades now, Ultrex has outlasted and outperformed the competition on virtually every measurable scale.
Vinyl
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Vinyl windows will lower your energy costs in Denver. Vinyl windows keep heat in during winter and out during summer. This reduces heating and air conditioning usage for lower energy bills. Vinyl windows are also maintenance free. Vinyl windows are nearly 100 percent scratch free.
Videos
We are licensed, insured, and accredited BBB members with great references and an outstanding reputation. We promise to meet your expectations to complete the work in a timely manor and exceed your Satisfaction.
Reviews (18)
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Emily Nohe
May 22, 2022
We had our hail damaged, faded, warped vinyl siding replaced with new James Hardie siding, trim, fascia and soffit. Ernest is very straightforward and answered my questions quickly and patiently. The team doing the work were respectful, on time and fantastic. I am very particular and any small or large issue I had was addressed or corrected without hesitation.

Not only did GS Exteriors have the best price but also the best service. I would definitely recommend them (and I met with a lot of contractors/siding companies). Thank you Ernest, Dennis, Marvin, Moses and the rest of the crew for your hard work. Our home looks beautiful!
Julie Tremayne
Apr 23, 2022
GS Exteriors were fantastic! I was recommended to talk to Ernest for new Hardy siding by a neighbor as they had done an amazing job for her. I shopped around a little bit at first but after the quote and the trust Ernest instilled in us we decided to go with GS Exteriors. Ernest to Dennis to the entire crew were fabulous and FAST. These guys worked when it was freezing but they put siding on a 3500 sqft home in a total of seven days!

To be honest one of the reasons we chose this company was the fact we were told they work fast. Ernest wasn't kidding! Everyone was SO friendly and genuinely seem to enjoy what they do and boy, do they work hard! Even though they were quick the quality of their work was incredible. They took care of everything and the quote even included the two massive dumpsters they needed for this job.

They cleaned up before they left everyday too. I can't say enough about these guys. Seriously, don't bother searching anywhere else. Thanks to all of you at GS Exteriors. We feel like we have a brand new luxury home now!
Violet De La Garza
Apr 10, 2022
We used GS Exterior Experts to replace our siding and gutters on our home with James Hardie siding. Keith was awesome to work with and answered all of our questions right away. He addressed all of our concerns and made the whole process easy and stress free! The crew showed up early each morning and was friendly and professional. They're workmanship was exceptional! The whole job took 4 days and I couldn't be happier with the results. I would highly recommend GS Exterior Exports if you're considering any siding work on your home!
Emmy Jacobson
Mar 10, 2022
Keith and the entire team at GS Exteriors were phenomenal! I was in need of new siding, windows and gutters and they were the one stop shop to do it all - and they did a great job. The team showed up first thing in the morning and worked all day, completely different from previous experiences with other companies, they got the job done, and did it well. They were friendly, courteous and professional. I would highly recommend using them for your home needs!
Brady Stroup
Feb 24, 2022
This company is amazing. After a hail storm, I was working with another contractor, but everyone in my neighborhood was using GS. I asked for a bid from Keith for siding and gutters and it came in less than what they were quoting me. We switched and they got right on it. The work was done quickly and they are very responsive. We are very pleased with how our house looks. I also got a window quote from them and that will be done later this Spring. I highly recommend GS Exterior Experts!
Cameron Lyons
Feb 23, 2022
The GS Exterior people and service were great! John Vigil in particular was fantastic. We had our whole home siding, trim, fascia, and soffits replaced with James Hardie Fiber Cement board. They worked with our insurance company to help get the siding replacement covered per our policy, which took some work. The work itself was fast and quality. It was easy to communicate with them through the process and they were responsive to our requests on timing, aesthetics, materials, etc. I would--and have--recommended them to friends and neighbors!
Ron Hurley
Feb 19, 2022
John Vigil was great to work with and was very responsive to all my concerns as we were out of town when the install of our James Hardie Siding. We didn't have much to cover, but the job took 3 days total, including removing the old exterior. Everything is sealed and cut to spec. We cannot be happier.
Sara Swanda
Feb 16, 2022
We used GS for the siding on our house after hail damage. They did a phenomenal job. The crew was extremely polite and always alerted us to what was going on. They were efficient and detailed in their work. I highly recommend GS Exterior Experts.
Charlie Shannon
Jan 08, 2022
We went with GS Exteriors for a large scale stone veneer installation project on our home. Manny was a pleasure to work with, and always made sure we were informed, consulted, and happy with the work as it was being done. Despite also simultaneously working as a firefighter, he always responded immediately and thoroughly answered any questions we had along the way. The crew was also very professional, doing high quality work on time and on budget. I can't recommend this company highly enough!
Heidi Schwenzfeger
Nov 26, 2021
Ernest is a ROCK STAR! He was involved from start to finish and made sure that all of the details were discussed and taken care of. Our home looks AMAZING now and we have had SO MANY compliments on the work that was performed. We thoroughly checked out several companies before deciding on GS Exteriors and are so happy we went with them. The price was great, workmanship was wonderful. Really a great group of people to work with.
Clif Cusack
Nov 18, 2021
John and Carlos were great to work with. They did a great job installing new James Hardie siding. The service was great and the pricing was below other quotes. John was upfront with the possibility of some extra work that might be needed once the existing siding was removed. The additional pricing was fair and the work was done quickly and looked great.

I waited a couple months to write to the review incase I found anything extra or any settling occurred. Everything still looks great and there are still no issues. I would recommend this company without hesitation.
Arthur Cafiero
Nov 05, 2021
GS Exteriors was recommended by at least 10 of my neighbors. This company has a supreme reputation for doing quality work and being fair with pricing. When it came down to making the decision of who to go with for our siding and roof remodeling, Keith and his team stood head and shoulders above everyone else. Keith and his team finished the job on time, and under budget.

We are still receiving compliments on how amazing our house looks. We are extremely satisfied, and I would encourage anyone to place your trust in this company. They understand their market, and have mastered their craft.
Kris Nelson
Nov 04, 2021
I used GS Exterior Experts for new siding. Keith was responsive and outstanding in project management and logistics. The work crew was amazing-showed great team work, were super-efficient and committed to quality.
Maxine Hartnett
Oct 05, 2021
Ernest and his team came out and completely finished my siding in 3 days. It looks absolutely beautiful and they were great to work with. Anything we wanted adjusted they did it quickly. It looks like a new house!
Mark S.
Aug 22, 2021
I wanted to leave a very positive review for GS. I had a substantial amount of work done to my home including full siding and new decks. The work was led by John Vigil as the project manager. John was straightforward, honest and responsive. Over the 3 months of work time I grew to trust that he would work out all the inevitable challenges that faces a large project. In the end it all worked out well. I am very pleased with the total final package and have received many compliments on the new look of my home.
Coleen Nieto
Aug 20, 2021
This company is amazing! They take care of everything, are very flexible, and most of all do excellent work. Ernest was great to work with. The company did my balcony, siding and patio and it looks like a brand new house. Services: Construction, Installation, Remodeling
Mindy Enley
Jul 17, 2021
This is an amazing company to work with! From the first interaction with Ernest to the clean up of the job site, it has been so easy and a professional experience. Ernest was very helpful with design ideas and colors. Never put pressure on us, even when it took us months to get the loan and pick colors. Loved to flash drive filled with resources and completed jobs of theirs.

Always easy to reach, and answered my questions within minutes. Luis and his crew were so thorough, replacing displaced rocks and cleaning up everything. They had such great attention to detail. So many neighbors have asked us what we did to our house. Hire GS Exterior Experts, you won't regret it!
L. Ee
Feb 21, 2021
GS Exteriors made our 100 year old house feel like a new home! They know what they are doing! Installation of all new windows, plywood, insulation and James Hardie siding in 2+days. 100% professional, quality work. Including nice trim around everything and siding our messy area under the closed in porch. Once they were on the job, they were fully committed to our project.

No spreading the crew thin over multiple jobs. Left all neat and looking beautiful! The house is much warmer, quieter, and just cozy. The was our best run and must gratifying house project!