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Roof Warden

Roofing contractor

Gentry Flat Roofs

875 Wilson Rd S, Oshawa, ON L1H 6E8

Listed under Scugog, ON

Google average
2.5
Ratings counted
13
One and two star
8 of 13
Ontario median
Not comparable

The first three are Google’s own figures for Gentry Flat Roofs, 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 Ontario roofers we list with enough ratings to compare.

Rating breakdown

2.5
13 ratings
How the 13 ratings break down, from five stars to one
5
538%
4
00%
3
00%
2
00%
1
862%
61.5%of these 13 ratings are one or two stars (8)

Too few ratings to compare against other roofers — at 13 ratings a single unhappy customer moves this figure by several points.

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 7 of the one and two-star reviews we hold for Gentry Flat Roofs, most recent first.

  • 1 out of 5Stephanie Peterkin2 years ago

    My roof was completed by Gentry Flat Roofing in 2016 by the previous owners. The previous owners left me the contract. It says: 10 year guarantee and transferable. A small section of shingles came off . I called Gentry, I was given a number & told to text and leave my information. I text & called numerous times and they never returned my calls or text over the course of a month. I will never use or recommend this company. Their customer service is DISAPPOINTING.

  • 1 out of 5Shehan Chandra3 years ago

    unprofessional, our roof is still leaking

  • 1 out of 5daren mcgarth4 years ago

    Do not use this company. they should be very ashamed of themselves for not finishing my roof. I have contacted them several times over the past few years and they won't return any calls. Don't just take my word for it, just read the reviews, all reviews and not just google. They try to come across as a professional company and they respond to google complaints with a generic response letting the complainant know that they will fix the problem, but they never will contact you to make the situation right. Anyone who attempts to use this company after the poor reviews and the warnings, deserve what they get.

  • 1 out of 5Shaun SavoyEdited 4 years ago

    Absolutely stay away from Gentry. They installed a TPO roofing system for me and less than 1 year later it's leaking everywhere. The owner feels that for some reason it's the customers fault the roof was never installed properly. Now 3 years later, we need to have the roof replaced. Gave this guy ample opportunity to make it right and they just ignore our phone calls, text messages and email. I also find it cute that the owner Darren Peters left himself a nice review on here. I can only assume the other nice review by Logan Peters, must be related. If anyone would like to know more, I'd be happy to share the hundreds of photos and information on this nightmarish experience. Do yourself a favor and avoid using Gentry for anything. Update: Less than 24 hours after leaving this review, the owner Daren Peters called me. Asked if I wanted him to send a couple of guys, I declined the offer as I have now hired another contractor. What a joke! Apparently we didn't pay enough money for the warranty that is stated on the quote and the invoice. 20 years on workmanship and materials. Hiring these guys has probably been one of the biggest mistakes I've made in my life. Cost our company $50,000 and a lot of headache.

  • 1 out of 5MJ Holbrook5 years ago

    Called 4 times and left message with no call back. What does that tell you. Have no choice but to pick one star.

    Reply from the business

    Hello MJ Holbrook, We would like to apologize for your experience and sorry to hear you were less than satisfied with our customer service. We pride ourselves on our customer service and the high-quality standards we maintain and would like to make things right. Please give us a call at 1 877 725 1093 or email us at info@flatroofs.ca to discuss what occurred and how we might make it up to you. Yours sincerely, Gentry Flat Roofs

  • 1 out of 5Bobby B5 years ago

    Warranty is non existant, and they won't stand behind their workmanship. Use Blackbird or Turnball, neighbors use them and have no questions asked repairs. I tried and no callbacks and no emails returned. Very disappointing, for a few shingle repair they will pass up on repeat business. Stay away.

    Reply from the business

    Hello Bobby, We would like to apologize for your experience and sorry to hear you were less than satisfied with our customer service. We pride ourselves on our customer service and the high-quality standards we maintain and would like to make things right. Please give us a call at 1 877 725 1093 or email us at info@flatroofs.ca to discuss what occurred and how we might make it up to you. Yours sincerely, Gentry Flat Roofs

  • 1 out of 5Nima NajmaeiEdited 7 years ago

    STAY AWAY. They came to my house to give me a quote. We have a flat roof section, and they told me that they will get back to me to give me a quote for the flat roof. For two weeks, I heard back nothing. I keep calling the guy's cell number and their office number and left 4-5 messages. No response. After more than 2 weeks, finally somebody answered, and they said they will not do the flat roof. Wasted 2 weeks of my time that I could go with another contractor. update. in response to your comment on this review, it has been almost one year since this happened. You did not respond to any of my calls, vpicemails, and etc. and after one year you want me to contact you??? you should be ashamed of your service

    Reply from the business

    Hello Nima, We would like to apologize for your recent experience and sorry to hear you were less than satisfied with our customer service. We pride ourselves on our customer service and the high-quality standards we maintain and would like to make things right. Please give us a call at 1 877 725 1093 or email us at info@flatroofs.ca to discuss what occurred and how we might make it up to you. Yours sincerely, Gentry Flat Roofs

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.

  • calls3
  • text2
  • leaking2
  • information2

Other reviews we hold

5 more of the 12 reviews we hold text for, most recent first. We do not hold every review Google has.

  • 5 out of 5Natallia Klimava2 years ago

    I leave my comment on the interaction with the Gentry Ltd. Company. The roof of my house was leaking. According to the documents from the previous owner and discovered that the roof was replaced 4 years ago and is currently under warranty. In the morning I called and left a message about the leak. Then I read the comments and was horrified at the prospect. In the evening, the owner of the company called me back and accepted my order. The next day a technician came and fixed everything. As stipulated in the warranty document, repairs are at the expense of the company. So, not everything is as scary as in the previous comments. Thank you very much Darren for your professionalism and efficiency. With deep gratitude and respect, Natallia

    Reply from the business

    Hi, Natalia! Thanks for your kind review. We are glad to know you are happy with our services.

  • 5 out of 5Debbie Batstra5 years ago

    Did a great job!

    Reply from the business

    Hi Debbie! We are glad to know you are happy with our services. Thanks for your comments!

  • 5 out of 5Jeff Earl7 years ago

    Fast response and repair work. Easy to work with.

    Reply from the business

    Thank you for taking the time to leave a review. Appreciate it!

  • 5 out of 5Paul Craig8 years ago

    Our house lost a bunch of shingles during the recent wind storm. We had originally used Gentry to install the shingles about 8 years ago. Without any hesitation they were able to find our matching shingles and had the repairs done within 48 hours of the storm. Unbelievable Service and they did this repair at no cost. I would highly recommend Gentry as they have great customer service and workmanship.

    Reply from the business

    Thank you for taking the time to leave a review. We are happy you appreciate our service.

  • 5 out of 5Husein Somji - Monument Depot9 years ago

    Darren Thank you for the work you have done for us ..... couldn't have got a better person doing my roof Monument Depot Inc

    Reply from the business

    Thank you for taking the time to leave a review Husein.

Other roofers in Scugog

Ranked by how many ratings Google has counted.

Other roofers we list in Scugog
Roofing contractor
Bentley West Roofing Inc.roof replacement, fair pricing, respectful crew5.091 ratings0% one and two star(905) 213-9848
The Roof Whisperer of Whitby - Roof Repair & Skylight Contractorflat roof, leaking, cedar5.061 ratings0% one and two star(289) 278-2142
Blackbird Roofingquote, loose shingles, roof shingling4.546 ratings13.0% one and two star(905) 431-4481
DeJager Roofingroof replacement, fair pricing, attention to detail4.842 ratings4.8% one and two star(905) 697-1919
Vandergaast RoofingRoofing contractor4.826 ratings3.8% one and two star(905) 623-8445
MTC Roofing And Exteriorssiding installation, metal roofing installation, skilled staff4.715 ratings6.7% one and two star(705) 344-0664

All roofers in Scugog →

Where this page comes from

Every figure above is Google’s, captured on 24 September 2026. The star average and the 13 ratings behind it are counted by Google across all of its reviews. The review text on this page is a sample — we hold 13, of which 12 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.

There is not much data on Gentry Flat Roofs. A short record here means our capture found little — not that there is nothing to find, and not that the business is new or inactive.