Licensed & Insured throughout the Colorado Front Range

Window Replacement

G2 Construction is a full service general contractor, which means our team can make the structural and custom changes needed to complete the window replacement your home needs. Most window companies in Northern Colorado are limited to only helping with the structure of windows in your home.  Our expert team can accomplish anything needed to achieve the look and function you want for your home.

Custom Window Replacement Services

G2 Construction is a certified contractor through Andersen Windows and Pella Windows.  Because we work with high end window brands that offer specialized windows, we can customize windows to meet your home’s specific needs. We can make the windows in your home as minimal or as extravagant as you would like.

You will not feel pressure from our team.  We understand that making decisions regarding your home can be difficult. Our team will give you all the information you need to  make the best decision on a timeline that you are comfortable with.

Window Services That Fit Your Specific Needs

Services and solutions you can count on

At G2 Construction, we strive to be an all-in-one service solution for your home.  If you are in need of new windows, we are the team of contractors to trust. We will work with you to provide a quote in a manner you are comfortable with. Whether it’s in-person or via a Zoom meeting, we can complete the measurements and quote in a convenient manner.

We take care of you and your home throughout the window replacement process.  We make sure your windows:

  • Pass your city inspection
  • Are updated to your county’s specific code requirements 
  • Work with any custom structural changes around your windows
  • Are effective for the environment and climate your home is in 

Quality Workmanship

We hold our work to the highest standard. We bring our A-game on every project.

Honest Communication

We strive to make your window replacement as stress-free as possible; We're fully licensed & insured for your protection.

Working for You

Your satisfaction is our first priority. We won't stop until you home is how you want it to be.

Brands We Partner with at G2

Trusted & Certified Window Installers for these top Brands:

Dependable Expertise

The G2 Difference

G2 Construction stops at nothing to provide the highest quality of windows and service. We’re proud to partner with Andersen Windows and Pella Windows to offer exceptional windows to our clients. When you trust our team for your window replacement, you can be confident that you’ll receive the custom windows you want!

Window Replacement Completed by:

Jeff Carlson

Want to learn more about Window Replacement?

Talk To Jeff & See how he can help

What Our Customers Are Saying

We’re incredibly fortunate to serve our customers through word of mouth recommendations.

Carol Scholfield
Carol Scholfield
G2 Construction is a highly reputable company. G2 replaced our roof this week and did a fantastic job! They were fast, efficient and professional. We had some issues with our insurance company not wanting to cover the cost and Jeff Carlson from G2 went to bat for us and contacted our insurance company. Jeff's extremely honest, hard-working and professional! He stayed in constant contact with us and when the insurance company approved our claim, he had a team out in a short period of time and we received a high quality roof that will last for years to come. No matter your need, G2 is the company to call. With owner, Derek Griess and every employee you can expect great quality work at fair prices. They are dependable, trustworthy and reliable!
Troy Moyer
Troy Moyer
G2 was prompt and professional. Their service was great and there were no hidden or unreasonable costs. We will definitely use them again.
marilyn korasidas
marilyn korasidas
We hired G2 to coordinate and complete multiple projects on our new “1965” home. We could not be happier! Front and backyard custom fences, exterior walls cut and windows installed, an upgraded electrical panel and other needed upgrades too numerous to lust. Nick, Jose, Ari and the crew are outstanding! Creative, kind, problem solving wizards chock full of integrity and responsibility. We will be working them for years to come! Marilyn and Bob
Justin Pipe
Justin Pipe
G2 replaced the roof and gutters on our private, Christian school. Around the same time, they also did the roof, siding, trim, gutters, and exterior paint on our house. For both projects, the crews did great work and were so fast! Our house was done in one day and our 50,000 square foot building was done in just under 2 weeks even with bad weather. Jeff kept us up to date with every little schedule adjustment (it’s been a rainy spring!) and was honest and straightforward with everything. Jeff was so knowledgeable about working with our insurance company and knew where typical oversights could happen and worked to prevent them. I’ve heard roofing horror stories from other people, but both our projects could not have gone smoother. I highly recommend Jeff and G2 Construction for residential & commercial projects!
Tonya Bettridge
Tonya Bettridge
We started working with G2 on a roof replacement. They worked closely with our insurance company to maximize the claim coverage. Jeff oversaw every step of a complicated process (solar panels had to be removed and replaced and we replaced a swamp cooler). We were so impressed with their work, we then hired them to completely re-do our backyard, with a deck removal, brand new gorgeous concrete patio, new drive way, new sod in the yard and yard edging with gravel. They exceeded our expectations with professionalism and attention to detail. We will definitely call for any future project needs!
Myra Escue
Myra Escue
Jeff was a real pleasure to work with on our roofing project...from his first visit until the completion, he was friendly, patient, professional, and thorough. The roofers were very professional, fast workers (less than 7 hours from beginning to completion), and friendly. Our yard area was completely clear of any trash when they finished. We are beyond pleased with the entire project and would definitely recommend G2 Construction LLC for your next home project.
Jennifer Brabson
Jennifer Brabson
In comparison, by line, G2's bid is comparable to bids received from numerous vendors; however, theirs came with thorough research into possible problematic items, as well as cost-effective solutions rendering the same (if not better) results. Additionally, research was presented on items to be ordered by consumer, with estimated arrival times as well as alternate options at comparable cost (saving us time, and doing so without even mentioning). The response and overall communication with G2 has been quick, efficient, and unprompted. Quality and ratings exceed that of any other vendor/proposal, and with lower overall cost. Seeing a completed portfolio to include Avon Public Safety Facility, Breckenridge resorts, Summit County School buildings, and the Ritz Carlton Bachelor's Lounge - there is clear attention to safety detail, knowledge of precise executions, as well as a keen eye for aesthetics. Add to all of this a wonderful demeanor and established rapport... Working with Garrett and Sean, never once have I felt the "car salesman" vibe of construction lingo to soften the stark $$'s (typically the case). Bonus: even brought me coffee one day! G2 - definitely an A+ outfit.
Patti Bos
Patti Bos
G2 helped us with replacing our roof. Jeff was friendly, helpful and always willing to answer all of my questions. He helped us deal with insurance and helped us get everything done seamlessly. Thanks so much. Great company.
Karen Rademacher
Karen Rademacher
G2 did a full-house renovation for us - tore out walls, all new kitchen, all new windows, wood-trim throughout...it was major. And we couldn't be happier with the results. They keep the worksite clean; they communicate constantly; and most important of all they keep their word. A big complex project like ours can go wrong in a lot of different ways. We were so happy that G2 addressed every problem that came up head-on and were always mindful of our budget. They have great subs too. Highly recommended.
Andrea H
Andrea H
Jeff was very professional, and he helped me during a very stressful moment. I would absolutely recommend.

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Window Specialist Waiting To Connect With You

When you need new windows, you want a team that puts you first.