Greenslate Roofing and Siding logo
Approved Pro
Approved Pro

Greenslate Roofing and Siding

Wood or Fiber Cement Siding Repair or Partial Replacement, Asphalt Shingle Roofing Repair, Roof - Clean,

About us

Greenslate Roofing is locally owned & operated. We have over fifteen years of experience specializing in residential and commercial roofing installation and repair. We service the Denver metro area & front range. Our certified manufacturer installers provide high-quality installation backed with lengthy workmanship and manufacturer warranties. Our experience and outstanding customer service are just a3 few other qualities that set us apart from other roofing companies in the Denver area. We're experts in roofing, siding, gutters & windows. *Joe O'Connor (Owner/Operator) * 720-537-1149

Business highlights

Emergency services offered
10 years of experience

Services we offer

Low Slope Roofing Systems (EPDM & TPO), Residential Asphalt Roofing, Roofing, Gutter, Siding & Window Installation, Siding: James Hardie, Vinyl, Metal & Wood, Storm Damage Repair

Amenities

Emergency Services

Yes

Free Estimates

Yes

Warranties

Yes

Accepted Payment Methods

  • CreditCard
Reviews
4.937 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
92%
4
8%
3
0%
2
0%
1
0%

Filter reviews by service

Showing 1-25 of 37 reviews
Michael M.
Jun 2025
5.0
Asphalt Shingle Roofing Repair
$54,326
We had siding. roofing, gutters, windows, trim and paint damage to our home. I wasn't sure who to trust. I was referred to Greenslate Roofing and Siding by my neighbor down the street who had them on their roof as well. Joe the owner and his team over at Greenlsate were fantastic easy to work with, they kept me informed of the steps, set expectations and followed through, on top of that we got a great finished product. Greenslate has me as a life long client.

Greg H.
Apr 2025
5.0
Google Review
Excellent experience working with Joe O’Connor and his team. I was dreading roof replacement following a recent hail storm. My initial experience and estimate/sales pitch with a larger company did not do anything to ease my anxiety. I found Joe super easy to work with. He was immediately responsive to all of my text messages and phone calls, he handled all of the negotiation with my insurance company, he coordinated removal and reinstallation of my solar panels, and his crew did excellent work. They even installed the upgraded class 4 shingles at no extra cost to us. Highly recommend Greenslate for anyone in the Denver area looking to work with a LOCAL and highly responsive team!

Tony V.
Apr 2025
5.0
Google Review
Roofing information was direct and informative, the pricing was fair and the work was done professionallys. All question were answered to my satisfaction. I was vary pleased.

Jason M.
Apr 2025
5.0
Google Review
"**Exceptional Roofing Service!** We recently had our roof replaced, and I couldn’t be more satisfied with the entire process. From the initial consultation with Joe to the final inspection, the team was professional, punctual, and highly skilled. They offered a competitive quote, used high-quality materials, and kept us informed at every stage. The crew worked efficiently and left our property spotless once the job was done. The roof looks fantastic. I highly recommend Greenslate Roofing and Siding for anyone needing roofing work. A+ service!" Thank you very much.

Sharon S.
Apr 2025
5.0
Google Review
GreenSlate Roofing replaced the roof on my house 4 years ago and did such an excellent job I contacted Joe (owner) when I discovered I needed to replace the roof on my gazebo. Once again, they did a great job at a reasonable price. Not only did Joe bid the job, he was on site a couple of times to check on the progress/quality of the job.

Nicole G.
Apr 2025
5.0
Google Review
Greenslate Roofing is the best in town! We've used them for two roofing projects. The owner, Joe, went above and beyond to help us get the most out of our hail claim. In the end, we were able to claim a new roof, windows, gutters, exterior painting, personal property replacements, and more, thanks to his guidance. He diligently followed-up with the insurance companies to speed up the process. He also coached us through the payout process, which was confusing. The work done by his teams was top quality.

Marilyn C.
May 2023
5.0
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
Joe was more than helpful, he went above and beyond. He helped us get the best roof from the Insurance company, checked in with us frequently and answered all of our questions and concerns. The job was a complete tear off and included Hardy siding. We could not be happier with the outcome.

Tim S.
Apr 2022
5.0
Metal Roofing Repair
Yes, I recommend this pro
$4,097
Joe came in with the low bid, and he did not add to it. Even when I did not listen to his advice.

Alozie O.
Apr 2021
5.0
Inspection - Roofing
Yes, I recommend this pro
Excellent service

David B.
Apr 2021
5.0
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
$1,700
homeadvisor doesn't need to call me several times during and after the process for information and reviews. It is really annoying. Probably over 6 phone calls and at least as many emails throughout the process. Ridiculous
Response from Greenslate Roofing and Siding
"I did not know they did that. I will be contacting them."

John P.
Mar 2021
5.0
Wood Shake or Composite Roofing Repair
Yes, I recommend this pro
$14,775
Joe O'Connor and crew leave nothing to be desired with regard to customer service as well as quality of workmanship. Joe treated me with understanding and respect and treated my home as if it were his own. Right from the start, Joe wanted only the best for me and he took the time to explain why he would be using specific materials and practices when installing my new roof. As with any major project, follow-up is key. This is also something that seems to come naturally for Joe O'Connor. AWESOME, AWESOME job!!

Melissa M.
May 2020
5.0
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
Joe and his crew were professional, on time, and upfront on costs and time.
Response from Greenslate Roofing and Siding
"Thanks, Melissa! It was a pleasure working for you. We appreciate your business. Joe."

William R.
May 2020
5.0
Asphalt Shingle Roofing Repair
Yes, I recommend this pro

Michael S.
May 2020
5.0
Wood or Fiber Cement Siding Repair or Partial Replacement
Yes, I recommend this pro
$12,000
Great company offering a great service for a great price

Terry E.
Apr 2020
5.0
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
They did a wonderful job, roof looks really nice. Workers did a fantastic job. Joe was checking in many times throughout the day and even the next when roof got inspected by the City of Aurora.

Daniel S.
Apr 2020
5.0
Wood or Fiber Cement Siding Repair or Partial Replacement
Yes, I recommend this pro
Joe and his crew did all the requested work as well as free assessment of other work. He was professional, polite, did not push for ticky tack extras. The price/value of his work way well with it

Tim K.
Apr 2020
5.0
Wood or Fiber Cement Siding Repair or Partial Replacement
Yes, I recommend this pro
Great experience. Professional in all aspects. Timely repair of siding from numerous woodpecker holes. Replaced siding and painted area. Very happy with the work

Ben K.
Mar 2020
5.0
Wood or Fiber Cement Siding Repair or Partial Replacement
Yes, I recommend this pro
These guys did a great job on our siding replacement. Good communication and they left the site clean.

Melissa P.
Mar 2020
5.0
Yes, I recommend this pro
Joe was great. He helped us file an insurance claim & stayed in communication thru the whole process. Even with winter weather delays, the job was completed in a timely manner & the final product looks great!

Sara B.
Nov 2019
5.0
Yes, I recommend this pro

David C.
Nov 2019
5.0
Yes, I recommend this pro
$4,890
Joe and his crew were professional, timely and, as the results of my siding replacement/repair job made abundantly clear, take pride in their work. I would not hesitate to recommend them to others seeking similar work.

Steve W.
Aug 2019
4.0
Yes, I recommend this pro
Green Slate did an outstanding job of working with our insurance company to insure we received full replacement of our roof. Communication was excellent, always timely and they did what the said they were going to do when they said they were going to do it. The crew was friendly and hard working. I highly recommend Green Slate for roof repair and installation.

Ralph C.
Aug 2019
5.0
Yes, I recommend this pro
$25,000
Joe was easy to work with and very helpful in dealing with the insurance company. The roof replacement work was done professionally. We found a couple of minor issues after the work was done, which Joe responded to and cleared up in a matter of hours. I would highly recommend him to anyone.

Jim R.
Jul 2019
5.0
Wood or Fiber Cement Siding Repair or Partial Replacement
Yes, I recommend this pro
Work done on time and on budget. Joe worked directly with my insurance company, greatly simplifying the process.

Takisha K.
Jul 2019
5.0
Yes, I recommend this pro
The contractor was awesome and helpful with the process.
Showing 1-25 of 37

Licensing

State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.

*Contact business to see additional licenses.

FAQ

Greenslate Roofing and Siding is currently rated 4.9 overall out of 5.

Monday: 6:00 AM - 7:00 PM Tuesday: 6:00 AM - 7:00 PM Wednesday: 6:00 AM - 7:00 PM Thursday: 6:00 AM - 7:00 PM Friday: 6:00 AM - 7:00 PM Saturday: 6:00 AM - 7:00 PM Sunday: 6:00 AM - 7:00 PM

Greenslate Roofing and Siding accepts the following forms of payment: CreditCard

Yes, Greenslate Roofing and Siding offers free project estimates.

No, Greenslate Roofing and Siding does not offer eco-friendly accreditations.

No, Greenslate Roofing and Siding does not offer a senior discount.

Yes, Greenslate Roofing and Siding offers emergency services.

Yes, Greenslate Roofing and Siding offers warranties.