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Roof Warden

Roofing contractor

Cornerstone Construction

11 N Irvine St, Greenville, SC 29601

Google average
4.9
Ratings counted
209
One and two star
6 of 209(2.9%)
South Carolina median
1.9%

The first three are Google’s own figures for Cornerstone Construction, 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 South Carolina roofers we list with enough ratings to compare.

Rating breakdown

4.9
209 ratings
How the 209 ratings break down, from five stars to one
5
19794%
4
52%
3
10%
2
00%
1
63%
2.9%of these 209 ratings are one or two stars (6)

About typical — the typical roofer in South Carolina 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 6 of the one and two-star reviews we hold for Cornerstone Construction, most recent first.

  • 1 out of 5Bryan Beeson10 months ago

    Cornerstone put a roof on for us in May. The process went fine. However, in August we discovered a water spot on our ceiling from a leak. When we went up in the attic to look at the leak, we also discovered that they disconnected the vent from our hot water heater and carbon monoxide has been leaking into our attic for months!! We are under warranty, but after numerous calls, Cornerstone has dragged their feet. They finally sent out a subcontractor who claimed to repair a shingle with a hole in it, but he didn't even touch the vent issue! I contacted the subcontractor again to complain and no response. We will never use Cornerstone Construction again! They claim to be about helping the community, but have put our family at risk and don't see the least bit concerned about their mistakes. Go elsewhere for your roofing needs- this is not a company of integrity. We will be moving forward with legal action if they don't resolve this issue soon.

  • 1 out of 5Brad M11 months ago

    Installed my Hardie trim boards backwards after is showed them exactly how I wanted it then it took over 9 months and dozens of phone calls for them to correct the problem. I would not recommend them.

  • 1 out of 5Gil Gerretsen11 months ago

    I called about having my roof inspected for storm damage. Set an appointment four days out (earliest they could do). Their rep arrived 15 minutes late. Didn’t bring a ladder! Said he could come back later but had to get the ladder out his wife’s car. He was more focused on getting into my attic (I had already inspected that myself). Then I find out he’s only been with the company for a week and a half with no prior roofing experience. So how in the heck would he know what he’s looking at! Take photos and let someone in the office decide. I told them not to bother sending him back. Unprofessional behavior at the beginning does not bode well for future work.

    Reply from the business

    Mr.Gerretsen, thank you for the honest feedback. We dropped the ball—arriving late and without a ladder is unacceptable. The team member you met was still in his onboarding period; that’s on us to manage better. We offered to have a manager to return and redo the inspection, which you chose not to pursue, and we respect that. We have meet with this employee and will do better as a company at making sure our specialists are prepared to be in the field. We have a long standing good reputation in the community and this is not how we normally operate so for that I am sorry!

  • 1 out of 5William Bissetta year ago

    I was called yesterday to see if I would like a free inspection. Set up an appointment for 12:30 pm on 10/1/2024. I was told they would call when they were on their way. I work second shift. So I waited till the last minute to get ready work and leave for work, and when was leaving my driveway at 2:30pm they drove past my house with no phone call. Already starting off a bad business relationship with me. Say what you mean and do what you say.

  • 1 out of 5Joseph McDowella year ago

    This is the worse experience we have ever received. I would never ever recommend. We have windows that are still not okay. DO NOT USE THIS COMPANY OTHER THAN ROOF. I am telling you we still have windows that are a problem. Call me if you if you want to hear my opinion. I am telling u Never use this company. I am going to report them to the BBB I AM DONE.

    Reply from the business

    We were able to get in touch with this homeowner and work through the concerns and issues that he had. This is not the kind of experience we want anyone to have at Cornerstone Construction and we appreciate that we had the chance to make it right.

  • 1 out of 5Blake Jameson3 years ago

    This company is a joke, had them come out to give me a quote for repairing a leak. They showed up and diagnosed my issues twice. Proceeded to tell me they would order some metal to install a drip edge and they thought that would fix the job everything was good up to this point. A month passed never heard from anyone called them and was told they would have guy over job return my call. Never heard from anyone waited 2-3 weeks called again and was told guy moved up in company and someone from sales would call me in 24hrs a week passed by and never heard from anyone? So this company wasted 2 months of my time . Very unprofessional if you didn't want the job just say so from the get go . Thanks for nothing!

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.

  • detailed inspection11
  • polite staff11
  • insurance claim assistance9
  • new gutters6
  • hail damage5
  • siding repair3
  • informative staff3
  • fast roof installation2
  • metal roof installation2
  • expertise of installation2

Other reviews we hold

14 more of the 199 reviews we hold text for, most recent first. We do not hold every review Google has.

  • 5 out of 5stephen kiser2 weeks ago

    Did exactly as I ask no BS direct into the point

  • 5 out of 5Kennith Owen2 weeks ago

    I needed to have my roof inspected after a recent storm and cornerstone was referred to me by my insurance agent. I called and was able to get the appointment scheduled the next day. D J Henderson was assigned to my project and he arrived right on time. He was very personable and knowledgeable. He spent a good bit of time explaining what needed to be done and even sent a quote for a metal roof. I almost forgot to say GO VOLS!! Dj will understand😁

  • 5 out of 5Tony McDaniel2 weeks ago

    Very professional and explained things very clearly. If I choose I would choose him again.

  • 5 out of 5ANNE MOWBRAY2 weeks ago

    Representative Donny came out to give us an estimate for siding. He let me know he was on the way and arrived on time. He was professional and answered questions we had. He was personable and provided a pleasant experience while doing his work.

  • 4 out of 5Michael Talbot2 weeks ago

    Stephan was prompt, courteous and professional. Unfortunately the requested quote did not meet my expectations, but I appreciated his effort and thoroughness even though we didn’t reach an agreement to the work scope and cost.

    Reply from the business

    Thank you for your feedback. We regret the quote didn't meet your expectations and appreciate your kind words about Stephan's service.

  • 5 out of 5M A4 weeks ago

    Great job on replacing some damaged shingles on my roof. Zak put a lot of effort in making sure the new shingles matched the color of the old ones.. Great Job Zak !! The job was reasonably priced and they cleaned the area upon completion. I would highly recommend.

    Reply from the business

    We're thrilled Zak did such a great job matching the shingles! Thank you for your recommendation.

  • 5 out of 5Jonathan Pricea month ago

    Hi, I got a quote from Cornerstone for a family members house. They are great to deal with!

    Reply from the business

    We're glad Cornerstone provided a great quote and experience! Let us know if you need further assistance.

  • 5 out of 5Lori Montgomerya month ago

    The team at Cornerstone Construction provided excellent customer service. They were responsive to my inquiries, prompt in scheduling an appointment, arrived at the scheduled time and completed the repair quickly. Highly recommend this company!

    Reply from the business

    Thank you for your feedback. We are glad we could resolve your issue promptly and efficiently.

  • 5 out of 5Chris Gann2 months ago

    They came out in a timely manner to investigate the issue. Stephan Shannon and his crew did a great job in making proper repairs and also providing ventilation in the attic. I recommend them for any roofing issues.

    Reply from the business

    We appreciate your business and are glad Stephan and his crew resolved your roofing issues effectively. Thank you for your recommendation.

  • 5 out of 5Michelle Morris2 months ago

    Donny Moreton is AMAZINGLY knowledgeable and found multiple issues that my builder had improperly done with my gutters. He took photos of everything he found and explained things very clearly to me and explained the different repair options. He’s not pushy and lays out different options and pros and cons of each. He’s very honest too. He showed me what areas are fine and where the problem spots are. He didn’t try to push me towards work that’s not actually needed, explained what things would be structurally important vs what things are cosmetic and a matter of homeowner preference so that you can weigh all the factors. He listened to all of my questions and explained them all. I feel very confident recommending him, and Cornerstone Construction.

    Reply from the business

    Thank you for your detailed feedback. We're glad Donny provided clear explanations and options for your gutter issues.

  • 5 out of 5Sebastien Collet3 months ago

    ⭐️⭐️⭐️⭐️⭐️ What a SERVICE!!!! I called this morning and immediately reached a real person who scheduled an …

    Google cut this review short. The full text is on their Google profile.

    Reply from the business

    Thank you for your feedback. We are pleased you received excellent service and appreciate your recommendation.

  • 5 out of 5Christy Rassel3 months ago

    Cornerstone's representative was prompt, thorough, and caring. Definitely recommend this company.

    Reply from the business

    We're glad we could assist you so effectively. Your satisfaction is our priority.

  • 5 out of 5Jeny Shirkey4 months ago

    Cornerstone construction did a great job on our roof. Very professional. Santiago was great! Explained everything, answered all questions and texts in timely manner

    Reply from the business

    Thank you for your kind words! We're thrilled Santiago and the team delivered a professional and timely experience.

  • 5 out of 5sturmmk1Edited 5 months ago

    Cornerstone Construction helped us when we moved here, by giving our roof a “tune up”, and came back to take pictures that our ins co required. So we hired them for our new roof, and we’re glad we did. Kyle kept in close touch to answer all …

    Google cut this review short. The full text is on their Google profile.

The latest post from this business

Posted by Cornerstone Construction to their own Google profile 5 months ago. Their words, not ours.

This homes chimney was about to collapse but you couldn't tell until the flashing was removed. Luckily it wasn't in use and we were able to remove it as part of the roof replacement. Need a roof update in Greenville? Reach out to Cornerstone Construction today for a free estimate.Jul 15, 2026

What Cornerstone Construction 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.

  • Licensed

    “…Our licensed and insured team makes sure that…”

  • Warranty offered

    “…South Carolina and beyond: Backed by a Warranty All of our services are backed by a…”

  • States a founding year

    “…The Most Trusted Roofing Company Since 2017 Where We Operate At Cornerstone…”

  • Free estimates

    “…Roofing Siding Gutters Get Your Free Quote and 10% OFF Your Project Today! Start…”

  • Financing available

    “…Contact Us Get Estimate Service Areas Financing Options Complimentary Inspection Privacy…”

Their site also states: insured, mentions the bbb.

Other roofers in Greenville

Ranked by how many ratings Google has counted.

Other roofers we list in Greenville
Roofing contractor
Gilstrap Roofinginspection, quick response, insurance claim assistance4.9416 ratings2.6% one and two star(864) 513-6176
Roofers LLCinspection, courteous staff, leak repair4.9376 ratings1.3% one and two star(864) 740-1691
Premiere Roofinganswering questions, insurance coordination, insurance claim assistance4.8367 ratings3.0% one and two star(864) 618-2353
Beemer KangaRoofroof replacement, gutters, quick response4.9340 ratings2.1% one and two star(864) 412-2573
Allcon Roofingthorough inspection, responsive staff, reasonable pricing4.9308 ratings2.6% one and two star(864) 552-1365
Lanier Roofing and Restorationroof replacement, leak repair, hurricane helene4.9270 ratings3.0% one and two star(864) 373-9799

All roofers in Greenville →

Where this page comes from

Every figure above is Google’s, captured on 24 September 2026. The star average and the 209 ratings behind it are counted by Google across all of its reviews. The review text on this page is a sample — we hold 208, of which 199 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.