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Cornerstone Construction

4.7
  • Oshawa, ON

About this business

Location details

804 Ritson Road South rear unit, Oshawa, ON, L1H 5L4, Canada

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WeekdayScheduleStatus
Mon8:00 a.m. to 5:00 p.m.
Tue8:00 a.m. to 5:00 p.m.
Wed8:00 a.m. to 5:00 p.m.
Thu8:00 a.m. to 5:00 p.m.
Fri8:00 a.m. to 4:00 p.m.
SatClosed
SunClosed
4.724 reviews
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Jolette Samuel's profile image
Jolette Samuel 
a month ago

REVIEW OF PROJECT: 1021 I have been renovating my home in small sections over the past 4 years. The most extensive and expensive was to be the full kitchen and new floor tiles starting from the front doors all throughout the first floor. It was a project I had quoted several times over the years with different contractors but none of them felt right, not to mention the wild quotes ranging from $27K to $90K. I am now in the winter of 2024/2025. And the newly inaugurated orange clown to the south has started his "revenue gen... read more

Joanne Cowles's profile image
Joanne Cowles 
a year ago

I am so impressed with the quality of work and professionalism of this company. Right from the beginning Mike was very responsive - coming to my home to really understand what needed to be done to give me the results I wanted within my budget and making recommendations to maximize the space. I highly recommend this company for any project. 

Mary Hawthorne's profile image
Mary Hawthorne 
2 months ago

We had a great experience working with this general contractor from start to finish. Communication was clear, timelines were respected, and the quality of work exceeded our expectations. Every detail was handled professionally, and any questions we had were addressed quickly. It’s rare to find someone this reliable and skilled—highly recommend. 

M's profile image
M 
6 months ago

Called on Wednesday and spoke to a guy named Mike, seemed very friendly and informative. Asked me to send photos of my sink/island I wanted work done on.. was told he’d have a look at my text message the evening of cause he was currently at a job site. I followed up the following day asking if he’s had the chance to look at my photos-We’re not at the end of day Friday (evening) and still no response. Very poor service to say the least. 

Ryan Passmore's profile image
Ryan Passmore 
8 months ago

Project 1007 - Mike completed a large renovation for us in Durham region, The project was well done, the attention to detail really makes it appear well done. Mike spends ALL of his time working on your project which makes it extremely easy to meet and review the project as it evolves. We went ahead and created a finishes list to allow for proper ordering and timing, Mike also gives you a great template to start from, along with ideas on his original scope of what he would do or install. We found this helpful. Overall ... read more

Frequently asked questions about Cornerstone Construction

How is Cornerstone Construction rated?

Cornerstone Construction has a 4.7 star rating with 24 reviews. 

When is Cornerstone Construction open?

Cornerstone Construction is open now. It will close at 5:00 p.m. 

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