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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
4.725 reviews
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Jolette Samuel's profile image
Jolette Samuel 
5 months 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

rishil gandhi's profile image
rishil gandhi 
a week ago

Currently am undergoing an insurance claim to get home restoration completed and reached out to Mike at Cornerstone Construction to assess and provide a complete proposal for the scope of work. Mike has been fantastic to work and communciate with. He is extremely detailed and meticulous. Proposal provided in-depth itemized line items for every restoration task. Everything was black and white with no room for confusion. Mike also has been instrumental in helping negotiate with the insurance company. He knows all the construct... 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. 

Lindsey Cooper's profile image
Lindsey Cooper 
5 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. 

Ryan Passmore's profile image
Ryan Passmore 
a year 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 25 reviews. 

When is Cornerstone Construction open?

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

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