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Roof Warden

Roofing contractor

Diamond Home Improvement

6930 Concession Rd 6 N, Amherstburg, ON N9V 2Y9

Google average
4.8
Ratings counted
179
One and two star
7 of 179(3.9%)
Ontario median
2.9%

The first three are Google’s own figures for Diamond Home Improvement, 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

4.8
179 ratings
Google’s profile shows 180
How the 179 ratings break down, from five stars to one
5
16693%
4
42%
3
21%
2
00%
1
74%
3.9%of these 179 ratings are one or two stars (7)

About typical — the typical roofer in Ontario sits at 2.9%. 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 Diamond Home Improvement, most recent first.

  • 1 out of 5Mark Dagenais4 days ago

    My experience with them was terrible the rod guy, which I don’t think he knows much of anything. Can’t even give you the courtesy to call you back to even tell you what their quote was or to even let you know they’re still working on it. They are too good to be bothered. I would not recommend them to anybody and they should get rid of that guy cause he ain’t no salesman. Or whatever he supposed to be tries to tell me we need to dig down 48 inches to put a foundation in for a 35 foot awning. I told him no we don’t. I already have half inch 4 x 4, steel columns one at each end and one in the middle holding up a steel beam that is already holding up the awning. I just wanna say thank you for the phone call back and you should get rid of that guy rod and all I wanted was some screens but he says I need a foundation. The guy is useless.

    Reply from the business

    We apologize for any inconvenience this may have caused. Our office will be reaching out to you.

  • 1 out of 5Stephanie Girard McPhedran3 months ago

    We had Diamond do our roof, let me start by saying they are wolves in sheep clothing!! Very nice at first, but once the job started there were many inconsistencies from the quote to the work completed. The workmanship was very poor at best!many areas needed to be redone before sign off because of materials used incorrectly this resulted in leaks in my kitchen, leaving significant damage. No resolution in site from Diamond!

  • 1 out of 5W5 months ago

    We had a new roof installed by Diamond Home Improvements in March of 2012. Since then, we have lost shingles five different times over the past 14 years. We believe this may be due to the shingles being installed incorrectly or possibly because they did not seal properly when they were installed in March.

    Reply from the business

    We're really sorry to hear about your experience. Our team wants to help resolve this issue, please give us a call, so we can assist you further. Thank you! :)

  • 1 out of 5Belle River-On the Lake BIA3 years ago

    Diamond Home Improvements = Poor workmanship! Windows wrong size - 1 inch smaller than original Took short cuts and installed on top of old cedar siding Had to hire a local contractor to redo all work

  • 1 out of 5MICHAEL Kane6 years ago

    Terrible communication ,worst ever ,had a new roof put on, first good rain I learned they messed up my skylight .With that came a ruined interior wall that was 6 weeks ago .I placed a tarp over my 9,000 dollar roof,and I'm still waiting for my roof to be repaired, heard back in 3 weeks .Oh yes Rod Gillen tells me I have to pay the cost of the skylight that they damaged another$ 710.00 .Would never recommend them .Still Waiting

    Reply from the business

    We apologize for any miscommunication we have had. We sincerely hope this issue has been resolved for you.

  • 1 out of 5cheryl doyle7 years ago

    I am currently not pleased with the job that was done on my 4 season room, nor happy with the response I received . Although Rod came out and viewed my concerns I feel there should be some compensation for the job and time I now have to …

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

    Reply from the business

    We are so sorry you feel this way Cheryl! Someone from our office will contact you right away to address this matter and your concerns.

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.

  • friendly workers16
  • window installation13
  • sunroom10
  • efficient crew8
  • efficient staff7
  • professional installers7
  • siding6
  • eavestrough replacement4
  • patio door installation3
  • clean work area2
  • neat installation2
  • clean crews2

Other reviews we hold

14 more of the 24 reviews we hold text for, most recent first. We do not hold every review Google has.

  • 5 out of 5Lisa Tomac5 days ago

    my go to roofing company. highly recommend

    Reply from the business

    Thank you for your kind words. Our team is honored to be your preferred roofing company. We appreciate your recommendation. :)

  • 5 out of 5Brad MartinEdited 2 weeks ago

    Couldn't be happier! From the beginning, communication was clear, service was excellent, pricing was very reasonable. Crew was efficient and cleaned up, left no mess. Will call Diamond again for the next project.

    Reply from the business

    We’re very happy to hear you had a smooth experience! Thank you for your positive feedback! :)

  • 5 out of 5Joseph Noble3 weeks ago

    Best contractor that i have ever dealt with. Very professional and on tine. The crew went above and beyound. It fealt lije my own family was working on my house. Ivwould recommend Diamond to my family and friends

    Reply from the business

    Thank you so much for your feedback and recommendation! We truly appreciate it! :)

  • 5 out of 5Denise Mailloux-Pavlakovich3 weeks ago

    We are very happy with our new sunroom by Diamond. Halid was extremely thorough, clean, and professional. We can’t wait to enjoy the bug free and breezy days in this sunroom!

    Reply from the business

    Thank you for your kind words! Halid and our team are happy to hear that you are enjoying your new sunroom. Wishing you many pleasant, bug-free days ahead! :)

  • 5 out of 5anthony ricci- papasodaroa month ago

    Recently got my front door replaced, Five out of five service from everyone. Have to give a personal shout out to the installers for being on time, very professional and friendly. Would consider calling the company back for additional services.

    Reply from the business

    Thanks so much for the awesome review! Our team loved working with you and looks forward to working with you again in the future. :)

  • 5 out of 5Michael Duranda month ago

    Crew did a great job on a 30+ day. Left a clean yard. Would use them again

    Reply from the business

    Thanks so much for the awesome review! Our team is thrilled you’re happy with the job. Looking forward to working with you in the future. :)

  • 5 out of 5Tyler Cooka month ago

    They did an amazing job, from ordering to installing very smooth process. Very professional, they treated my home like their own. Great quality windows. 10/10 will recommend.

    Reply from the business

    Thanks so much for your kind words! Our team is thrilled you had a smooth experience and love your new windows. :)

  • 5 out of 5Allan Carrolla month ago

    The Diamond Home improvement experience we had was very positive. The team was detail oriented and installed our sun room professionally.

    Reply from the business

    Thanks so much for your kind words! Our team is thrilled you loved the sunroom installation. :)

  • 5 out of 5Glen Kozmenskia month ago

    Very good workers. No mess, very polite. They worked during extreme hot days, limited time. We didn't want anyone getting heatstroke or passing out up on the roof. We would recommend Diamond 100%.

    Reply from the business

    Thank you so much for your wonderful words! Our team truly appreciates your recommendation and support. Take Care! :)

  • 5 out of 5Joe Wehbea month ago

    They were on time did an amazing job on the roof fast and clean would recommend to everyone

    Reply from the business

    Thanks so much for the awesome review! Our team is thrilled you loved the fast, clean work. We appreciate your recommendation! :)

  • 5 out of 5MRLWLa month ago

    Trying to decide on a company to install doors and windows can be quite challenging. Going with Diamond Home Improvements which is family owned and been in business for 43 years was an easy choice. We first met with Lucus who explained to …

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

    Reply from the business

    Thank you for sharing your experience. We are pleased to hear that you felt supported throughout the whole process. :)

  • 5 out of 5Karen Hill2 months ago

    They did a great job on my roof! They were experienced in providing the information required for the insurance company. I am very pleased with the result!

    Reply from the business

    Thanks a ton for the awesome review! Our team is super excited that you’re happy with the roof and the help with your insurance.

  • 4 out of 5Andreas Erdmann2 months ago

    The installers knew what they were doing. Friendly guys, professional installation and good clean up after. I am happy with the work and product.

    Reply from the business

    Thanks so much for your kind words! Our team is thrilled you’re happy with the installation and cleanup.

  • 5 out of 5Susan Wood2 months ago

    Excellent job, any concerns or questions we had were addressed right away. Highly recommend Diamond Roofing!

    Reply from the business

    Thank you for your valuable feedback. Our team is pleased to hear that you had a positive experience. :)

What Diamond Home Improvement 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

    “…free installation Our “Stuff Happens” Warranty Read More Referrals are our primary…”

  • Free estimates

    “…Services Testimonials Schedule A Free Estimate Welcome to Diamond Home Improvement –…”

  • Family owned

    “…As a family-operated business, we understand that your…”

Their site also states: states a founding year.

Other roofers in Amherstburg

Ranked by how many ratings Google has counted.

Other roofers we list in Amherstburg
Roofing contractor
Weather Shield Roofing and Siding Co.ltd.professional crew, polite crew, friendly staff4.764 ratings7.8% one and two star(519) 944-4710
Dufour's Roofingleak, eavestrough repair, polite crew4.845 ratings4.4% one and two star(519) 996-3666
Roofing with Integrityjob, roof repair, family4.328 ratings17.9% one and two star(519) 981-9589
Heritage Roofing Inccleanliness, work, workmanship4.227 ratings18.5% one and two star(519) 324-9690
Bright Green Roof Windsorshingles, pleasant staff, roof preservation5.024 ratings0% one and two star(519) 800-0399
Ryan Roofingroof repair, fair4.021 ratings23.8% one and two star(519) 791-6413

All roofers in Amherstburg →

Where this page comes from

Every figure above is Google’s, captured on 24 September 2026. The star average and the 179 ratings behind it are counted by Google across all of its reviews. The review text on this page is a sample — we hold 30, of which 24 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.