Roofing contractor
G3 Roofing & Exteriors
Listed under Castle Rock, CO
- Google average
- 4.8
- Ratings counted
- 46
- One and two star
- 2 of 46(4.3%)
- Colorado median
- 1.9%
The first three are Google’s own figures for G3 Roofing & Exteriors, read on 24 September 2026; the share is of every rating Google has counted, not of the review texts on this page. The median is ours — the middle figure among the Colorado roofers we list with enough ratings to compare.
Rating breakdown
| 5 | 44 | 96% | |
|---|---|---|---|
| 4 | 0 | 0% | |
| 3 | 0 | 0% | |
| 2 | 0 | 0% | |
| 1 | 2 | 4% |
About typical — the typical roofer in Colorado sits at 1.9%. A higher share is a reason to read the critical reviews below, not a verdict.
The critical reviews
The one and two-star reviews, first. These are what a star average hides, and they are the reason this page exists.
All 2 of the one and two-star reviews we hold for G3 Roofing & Exteriors, most recent first.
- 1 out of 5Heather B2 years ago
TLDR: I backed out of the contract with G3 Roofing due to their questionable business practices and they still are charging me $5400 I fully acknowledge that I terminated the contract well after the 72 hour deadline, but it was mainly after an accumulation of red flags. I also freely admit I was not a careful consumer – I am moving across the country and have been putting all of my energy and thought into that. I put out a request for bids on gutters on my house on Yelp and got a bunch of responses. I arranged for some of those contractors to come out to look at the gutters on my house. G3 Roofing was the first company to come out. There were some glowing comments on BBB’s site - they have since disappeared between me reading them and the current drama. G3 came out to give me an estimate on my gutters, but asked to look at the roof. It had been 7 years since it was last replaced. They concluded that it needed replacing, spoke with my insurance company and agreed to meet with them to look at the roof together. Again, I said fine because I was overloaded with home buying/selling and moving chaos. However, the representative (owner?) became irritated when I said I wanted to speak with other contractors for their opinions. Aggressively demanded to know why I wanted to talk to anyone else. That should have been my first red flag. I rationalized all this away. I was juggling a hundred other things and planning how to move my entire life across the country. Yeah, I was an easy mark. I sign the contract a couple weeks later and don’t really look too closely at it (I was stupid). Then a couple weeks after that G3 roofing requests the ENTIRE insurance payment as their deposit and says they will send someone by to pick up the check. And that’s when the alarm bells started clanging in my head. I told them I was not comfortable with that and would like to terminate the contract, even though it was past the 3-day limit. Long story short, they backpedaled to something more a
Google cut this review short. The full text is on their Google profile.
Reply from the business
Hello Ms. Bell, First, we are very disappointed that we had to enforce the cancellation of contract terms and conditions. This is not something that we enjoy doing. Despite our multiple attempts to explain the insurance proceeds contract to you, it did not seem to click. The deposit amount is set forth by your insurance provider. This is called an ACV amount. As stated on the phone in the multiple attempts to try to explain the process to you, ACV proceeds is NOT the full insurance amount. You, also, are responsible for your deductible, which is collected with the ACV deposit. Collecting deductibles is mandated by Colorado State Law (C.R.S 6-22-101 to 6-22-105), and the ACV deposit amount is dictated by your insurance scope of work. The remaining funds are held by your insurance company until the work is completed. We were more than willing to work with you, to ease your concerns, despite the clear language in our contracts for deposit amounts, and insurance proceeds, you still decided to cancel the contract. We are very sorry that you decided to shop around after signing a legal binding contract with us. We also would like to note to you that we did have multiple hours invested in to your job, running your adjuster appointment, permits and licensing fees, and other office overhead that went into your project up until the day you canceled the contract. We wish you the best on your move across country, and hope that you find a contractor that does quality work, and assists in making the renovation process easier, and less stressful. We appreciate your prompt payment, per your terms and conditions. Take care! Regards, G3 Roofing & Exteriors
- 1 out of 5Maddie Draper2 years ago
Yesterday G3 Roofing and Exteriors was going door to door soliciting. We have a no soliciting sign right next to our doorbell with an additional much larger sign asking that the no soliciting sign be respected. There were two men at our door and it looked like one was training the other. He reads our sign, rings the doorbell and then proceeds to tell his trainee, "I usually ignore signs like that. A lot of times I'll say 'Oh I'm sorry. I rang the doorbell before I saw it but...'" He then says, "we're not soliciting because we're not selling something, we're offering a service." Sir. You are SELLING a service. Unless your services are free? You are soliciting your services to us. And we very clearly do not want to be sold to. No. Thank. You. I find this type of behavior unacceptable in companies. It is an instant turn off when someone doesn't respect my privacy, my time, and my home right off the bat. I also generally speaking do not trust any kind of door to door salespeople. If your company is any good I will be recommended through someone I know or I will find you myself on google or in a reputable local home magazine. Even a mailer of some kind is preferable to this type of sales. At least it isn't wasting my time and I appreciate the effort to market to new areas respectfully through the appropriate channels. Personally I would not trust a company that is literally training their employees to ignore their customers because they think they know better. This is my private home. You are on my property. The blatant disrespect for my time and agency as a homeowner ensures that I will not only never be using your services, I will also recommend that anyone I know avoid using you. Including my neighbors. I would be happy to send the doorbell footage to management if they would like to see it!
Reply from the business
Ms. Draper, We sincerely apologize for the lack of respect to your No Soliciting sign. This is not how we would normally train new employees to door knock. Our door knocking is a way to offer a roof inspection, which is a free service to people that allow us to inspect their roofs. Our inspections are a free service that 100s of homeowners are thankful for receiving from us. We also have many 5 star reviews on Google that we truly deliver a good experience to our customers. We understand the manner in which this was stated on your ring door bell was not appropriate and we again sincerely apologize. Thank you for taking the time to let us know, we will internally investigate this incident.
What reviewers keep mentioning
Topics Google extracted from this business’s reviews, with how many mention each. These are words that appeared in reviews, which is not the same as a service the business sells.
- insurance claims5
- timeliness5
- cleanup3
- windows3
- trustworthy work3
- metal roof2
- sympathetic staff2
- new roof2
- damages2
- easy to work with2
Other reviews we hold
14 more of the 39 reviews we hold text for, most recent first. We do not hold every review Google has.
- 5 out of 5harry15852 months ago
Brian is very easy to work with, gets the job done well.
Reply from the business
Thank you so much Harry for the kind words! It was such a pleasure working with you. Thank you for trusting us with your home!
- 5 out of 5Malia Doss2 months ago
Brian and his crews were remarkably professional, reliable, friendly and did great work. We’ve gotten lots of compliments from our neighbors. Highly recommend.
- 5 out of 5Bree RenkemaEdited 2 months ago
Great company to work with! Brian and Alissa are amazing to work with! Very understanding and respectful.
- 5 out of 5Brandt Jones4 months ago
Brian did good quality work. I would use him a again for future roofing needs!
Reply from the business
Brandt, thank you for your kind words and choosing us for your roofing job! We strive for great communication and being a trustworthy company that our customers would choose us again! We look forward to working with you again!
- 5 out of 5Alex Millera year ago
Brian came out to estimate fixing a small leak within hours of calling. While he was looking at it he just calked along the flashing he thought might be the problem and said 'no charge. Let's see how it does.' That's the kind of honest …
Google cut this review short. The full text is on their Google profile.
Reply from the business
Alex thank you for sharing your experience with us. We are big about integrity and being honest in what is best for our customers! We greatly appreciate your business!
- 5 out of 5Harry Greenberga year ago
Bree is fantastic getting everything you need accomplished. My roof looks awesome. I would highly recommend G3 Roofing & Extereriors for all your home needs.
Reply from the business
Harry, thank you so much for the kind words. We are happy to hear that you are pleased with your project. Please keep us in mind if you hear any of your friends or family needing a new roof!
- 5 out of 5Erik Jacobsona year ago
The customer service is outstanding. Ronnie and Bree talk you through everything and work with your insurance to get you the best deal possible. I'd highly recommend this contractor.
Reply from the business
Thank you so much for the kind words and trusting us with your project!
- 5 out of 5Kara Flynna year ago
Alissa and Brian, the co-owners of G3 Roofing, are truly some of the most genuine and down-to-earth people you’ll ever meet. They lead with authenticity, kindness, and a deep commitment to building real relationships—not just with their clients, but with everyone they meet. Their dedication to excellence shines through in every part of their business. They deliver outstanding service, take pride in their work, and genuinely care about the people they serve. You’re not just hiring a roofing company—you’re partnering with two incredible humans who truly go above and beyond. I can’t recommend them highly enough.
Reply from the business
Kara, thank you so much for your kind words. We really appreciate your review and were happy to work with you!
- 5 out of 5James Hoa year ago
G3 roofing very experienced and professional. I’m very satisfied and happy with the works they have done for my new roof!!! They’re well deserved for better than 5 star rating.
Reply from the business
Thank you for your fantastic feedback, James! We’re thrilled to hear that you're satisfied with your new roof and our team's professionalism. Your kind words motivate us to keep delivering top-notch service. We truly appreciate your support and hope you enjoy your new roof for many years to come!
- 5 out of 5Ngan NgUyENa year ago
Brian is awesome . He and his team got the job done quickly and professionally.Highly recommended .
Reply from the business
Thank you for your wonderful feedback! We're thrilled to hear that Brian and the team provided you with quick and professional service. Your recommendation means a lot to us, and we look forward to serving you again in the future.
- 5 out of 5Julie Kesslera year ago
I’ve had the pleasure of getting to know Alissa over the past several months, and it’s clear she is a thoughtful and caring business owner. She genuinely prioritizes her clients’ satisfaction while also creating a positive working environment for her roofing teams. It’s refreshing to see a company so dedicated to both quality work and the people behind it. Should we ever need roofing repairs or replacement, G3 will absolutely be the first company we call!
Reply from the business
Thank you for your wonderful review, Julie! We're thrilled to hear about your positive experience with Alissa and our team. Your appreciation for our commitment to quality and client satisfaction means a lot to us. We look forward to serving you again in the future!
- 5 out of 5Ann Marlina year ago
Alissa and her team are amazing to work with!
Reply from the business
Thank you for your kind words, Ann! We're delighted to hear that you had a great experience working with Alissa and her team. Your support means a lot to us!
- 5 out of 5Linda Busha year ago
We really appreciated your work ethic and helping us with the delay from the mortgage company. Everything is in top shape and we are really happy with the result. Thank you.
Reply from the business
Thank you for your wonderful feedback, Linda! We’re glad we could assist you with the mortgage delay and that you’re happy with the results. Your satisfaction means a lot to us!
- 5 out of 5Sarah Merrill2 years ago
I thought I just needed some siding replaced on my house due to non storm damage and G3 came out and fully inspected the exterior of mt house. Ronnie worked with me and my insurance company and we ended up getting a new roof, gutters, …
Google cut this review short. The full text is on their Google profile.
Reply from the business
Sarah, Thank you for giving us such a great review. We take pride in what we do and believe in treating our customers like family. Thank you for trusting us with your project and if you hear family and friends needing help with their roof please keep us in mind.
What G3 Roofing & Exteriors says about itself
Taken from the business’s own website. We have not checked any of it. These are quotes, not credentials — a roofer writing “licensed and insured” on their homepage is not evidence that they are.
Warranty offered
“…G3 Roofing | Quality Roofing Guaranteed | Trusted Roof Repair &…”
Free estimates
“…Painting Roofing Siding Windows Get a Free Quote Home Services Painting Roofing Siding…”
Other roofers in Castle Rock
Ranked by how many ratings Google has counted.
| Roofing contractor | Google average | Ratings counted | One and two star | Contact |
|---|---|---|---|---|
| North Peak Roofing & Contractingthoroughness, insurance claim assistance, gutter replacement5.0163 ratings0% one and two star(303) 357-9719 | 5.0 | 163 | 0%0 of 163 | (303) 357-9719 |
| Columbine Roofing & Exteriorsexceptional work, cost, new paint4.7130 ratings5.4% one and two star(720) 452-7663 | 4.7 | 130 | 5.4%7 of 130 | (720) 452-7663 |
| Rex Roofing & Solar, LLCknowledgeable staff, insurance claim assistance, inspection5.0122 ratings0.8% one and two star(720) 682-1799 | 5.0 | 122 | 0.8%1 of 122 | (720) 682-1799 |
| Abraham Benson Roofing LLCroof replacement, insurance claims, quality inspection5.086 ratings1.2% one and two star(303) 532-6319 | 5.0 | 86 | 1.2%1 of 86 | (303) 532-6319 |
| Verity Roofingroof replacement, insurance claims assistance, thorough inspection5.082 ratings0% one and two star(303) 500-1667 | 5.0 | 82 | 0%0 of 82 | (303) 500-1667 |
| Rock Canyon Roofinginsurance claim assistance, roof replacement, hail damage4.965 ratings3.1% one and two star(720) 366-3008 | 4.9 | 65 | 3.1%2 of 65 | (720) 366-3008 |
Where this page comes from
Every figure above is Google’s, captured on 24 September 2026. The star average and the 46 ratings behind it are counted by Google across all of its reviews. The review text on this page is a sample — we hold 45, of which 39 have any text — and it is not everything Google shows.
Roof Warden does not verify licenses, bonds, insurance or workers’ compensation cover, and nothing on this page should be read as though we had. Confirm those directly with the contractor and with your state or provincial licensing body before you hire anyone.