I had my roof replaced by Interlock about a year ago. The product itself seems quite good. Installation initially had some serious issues as the installers were inexperienced contractors; but they were resolved amicably before I paid the balance over a period of a few weeks. However the reason for the 4 stars is that I paid to have 2 nails installed per shingle, to raise the wind rating warranty from the standard 193 Km/h to 220 Km/h (4 nails would be 275 Km/h). This was agreed with their sales rep Derek and is in the work orders. 2 nails were installed, however Interlock fails to provide the warranty with an upgraded wind rating and it's still just for 193Km/h, even though its almost a year later and I have sent many messages to Derek about it.
Edit: After the reviews were posted I was contacted by Scott and the warranty update was provided. Hence the review is updated.
- Company Response
Re: Guardian Warranty Update
INTERLOCK ROOFING LTD.
9969 River Way
Delta. B.C. V4G 1 M8 Canada
Please be advised that your Guardian Warranty has been upgraded to reflect the 2 nail application.
The Manufacturer warrants that the Product will resist wind speeds of up one hundred and fifty (150)mph (241)kph.
Interlock® Metal Roofing
Ontario's Best Roof™
289-272-6145 / 1-866-319-876