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About this company

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Cornerstone Development

GuildQuality Member
Since 2013
GuildQuality Master Award Winner
Guildmaster Award Winner
2017, 2018, 2019, 2020
Feedback Milestone
7-Year Anniversary
2020 - See more

New home (330)

Condominium (326)

Custom home (4)

Home for sale (4)


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All project locations are approximate


What is this?

What is this?

We display two types of written homeowner feedback on GuildQuality member profile pages: Comments and Reviews.


In response to our customer satisfaction surveys, homeowners share lots of comments about construction quality, communication, or any other question asked in the survey. Guildmembers can selectively publish these comments here on their profile page.


Reviews are different than comments. These are star ratings that homeowners ask us to publish, and they come with a written description of the type of experience they had working with their contractor. We publish all of the reviews we receive: positive and negative alike.

Learn more about reviews and comments.
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  • GuildQuality

More about Cornerstone Development

As a GuildQuality Guildmember, Cornerstone Development relies on our customer surveying to help them deliver an exceptional customer experience.

We have surveyed customers on behalf of Cornerstone Development in Greenfield, WI; Cedarburg, WI; Oconomowoc, WI; Brookfield, WI; Mukwonago, WI; Pewaukee, WI; Muskego, WI; Sussex, WI; and Franklin, WI.

In this report, Cornerstone Development has published a summary of the customer feedback they've received since they joined GuildQuality in March 2013. In that time, 289 out of 369 customers (78%) responded to a GuildQuality satisfaction survey, with the most recent response in October 2020.

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