Grand Valley Roofing & Coatings Inc

All 5 of the one and two-star reviews we hold for Grand Valley Roofing & Coatings Inc, most recent first.

• 1 out of 5Laura Shana (Almasthetician)a month ago

  July 5 approximately 8:15pm. The person in the passenger seat decided to throw their mcflurry out the window on the highway 401 westbound by Milton. We were behind them. The ice cream splattered all over our car. We had a 4 year old, 2 year old and a 3 month baby in the car. You can see the splatter of ice cream on our windshield in the photo. Company should be charged and will be reported.

• 1 out of 5Rosen Koleva year ago

  Scam! I called those people as they did my flat roof some 8 years ago ( for the previous owner). They came to inspect a leak, and in only 10 minutes they figured that I have a plumbing problem and I need to call a plumber. I received a bill for $650 !!! After I complained, they reduced the bill to $500 for the 10 minutes observation they did, saying that this is their minimum charge. Terrible experience!

• 1 out of 5Grace Cox4 years ago

  The roof is only 14 years old with 30 year shingles. They missed way to many nails in the shingles. They have been sliding off over the last few years. This heat we just had has made it worse. …

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

  Reply from the business

  Grace, We at Grand Valley Roofing are sorry to hear about your failing 30 year shingles. For you and other people who are experiencing warranty issues, I would like to review warranty information. With any issue, the first thing that you should do is to find your original invoice and any other paperwork that was given to you when the roof was completed. There should be two components to the offered warranty. One part is for the installation of the shingles held by the installers (Grand Valley Roofing) and the second part is for the actual shingles that comes from the shingle manufacturer. Grand Valley Roofing, as the installer offered a 10 year warranty on the installation of the shingles. Unfortunately this warranty has passed. This guaranteed that the shingles were installed according to the shingle manufacturer's instructions. The second part of the warranty is for the shingles themselves and is covered by the actual shingle manufacturer whose information you were given upon completion of the roof. If the shingles did not hold up as expected, then you must contact the shingle manufacturer and have them access your roof. This is the regular course of action and does not involve Grand Valley Roofing.

• 1 out of 5Dennis Jaciw7 years ago

  Dirty, slow, LOUD, unprofessional, and filled with curse words. There are children that go to school across the street, this company has unacceptable standards. They also failed to strap down their wood on one roof, and the wind picked up …

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

• 2 out of 5A Johns72Edited 8 years ago

  We hired this company for a complete roof replacement. We had some difficulties with communication from the company, and the uncooperative weather delayed the installation for a while, which caused even more issues. After finally nailing down an installation date, our roof was installed. It looks great, and seems to be holding up well after all the storms we have had this year! The installers did do a bit of damage to our plants, and could have cleaned up better. Update: Our roof was damaged in the storm, and we asked the company for assistance, assuming it was under warranty. They responded they would take a look, and then promptly sent me a bill for the work. No quote, no communication, nothing. So, no warranty either?! Unimpressed.

3 more of the 8 reviews we hold text for, most recent first. We do not hold every review Google has.

• 5 out of 5Matt Jamiesona year ago

  Did an 80,000 sq ft warehouse expansion, tying 3 roofs together with GVR, and the whole crew did a great job. Professional, responsive to communication, and easy to work with - they came every day and got the job done. …

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

• 5 out of 5John Hann8 years ago

  Best in the business

• 5 out of 5J D9 years ago

  This is a great company to work with!

Preventative roof maintenance goes a long way to saving money on commercial and industrial roofs. Find out more from Grand Valley Roofing & Coatings Inc.Jun 9, 2026Learn more

• Insured

  “…warranties, is fully bonded and insured, and participates in WSIB's…”

• Bonded

  “…superior warranties, is fully bonded and insured, and participates in…”

• Warranty offered

  “…our emphasis on workplace safety, warranty coverage, and transparent project…”

• States years in business

  “…More Your Local Cambridge Roofers for Over 35 Years Grand Valley Roofing & Coatings…”

• Free estimates

  “…Get a Free Estimate Cost-efficient Maintenance Programs…”

• 24/7 emergency call-out

  “…These include: 24-hour emergency service on flat roofs. Preventative roof…”

• Mentions the BBB

  “…of building owners is our continued A+ rating at the Better Business Bureau .…”

Their site also states: states a founding year.