From longtime owners to regional investors, our commitment remains— delivering honest quality with integrity, timeliness, and peerless client experience. Read what our clients have to say.

testimonials

From longtime owners to regional investors, our commitment remains— delivering honest quality with integrity, timeliness, and peerless client experience. Read what our clients have to say.

testimonials

"We have worked with Cornerstone Construction for 5 years on projects throughout the Denver Metro Area.  We have worked with them on gut renovations of an entire building, substantial unit renovations and modernizing interior and exterior common area spaces of our apartment buildings.  As California residents we would never feel comfortable taking on these projects without Cornerstone. We involve their team in all aspects of the project from evaluating the condition of a property prior to purchase, to budgeting our renovations, to final inspections with the City.  

I have found them to be on time, on budget and consistently thinking outside the box to ensure a successful project.  I can’t recommend working with them enough!"

Worked with Cornerstone on 13 properties totaling 843 apartments

cohen rojas capital

Eli Cohen, Principal.
Cohen Rojas Capital Partners

"We have worked with Cornerstone Construction for 5 years on projects throughout the Denver Metro Area.  We have worked with them on gut renovations of an entire building, substantial unit renovations and modernizing interior and exterior common area spaces of our apartment buildings.  As California residents we would never feel comfortable taking on these projects without Cornerstone. We involve their team in all aspects of the project from evaluating the condition of a property prior to purchase, to budgeting our renovations, to final inspections with the City.  

I have found them to be on time, on budget and consistently thinking outside the box to ensure a successful project.  I can’t recommend working with them enough!"

Worked with Cornerstone on 13 properties totaling 843 apartments.

cohen rojas capital

Eli Cohen, Principal.
Cohen Rojas Capital Partners

"As one of the service managers for Peak Mechanical, I have had the pleasure of working with Andy and the Cornerstone Construction team on multiple projects. They consistently go above and beyond. The last job site I worked with this team was at the Cornerstone headquarters project and watching everything come together so smoothly at the end was truly amazing. Andy and his team have always exceeded expectations when it comes to project planning, cost-saving strategies for financial budgeting, and ensuring safety on the job site.

They are punctual, meet deadlines, and maintain a high level of professionalism throughout the process. Andy is always clear and communicative about project goals, and the work sites are always clean and well-organized. I highly recommend the Cornerstone Construction team to anyone looking for high-quality, budget-friendly work."

Peak Mechanical

Cody Rasbach, Service Manager at Peak Mechanical

"Cornerstone Construction should be your first and only call. I’ve been working with CC for over 10 years and know that when I call them or refer them to a client, the job will get done right, on budget, and within the time frame they say. I’ve been in the apartment industry in Central Denver for almost 20 years and have never been more confident in a referral.

Their professionalism, communication, and responsiveness are second to none. Whether it’s helping budget a project for a client looking to purchase a property or helping an existing building owner renovate one unit or their whole building, Cornerstone Construction is always my recommendation."

client testimonial

Conner Piretti

"As one of the service managers for Peak Mechanical, I have had the pleasure of working with Andy and the Cornerstone Construction team on multiple projects. They consistently go above and beyond. The last job site I worked with this team was at the Cornerstone headquarters project and watching everything come together so smoothly at the end was truly amazing. Andy and his team have always exceeded expectations when it comes to project planning, cost-saving strategies for financial budgeting, and ensuring safety on the job site.

They are punctual, meet deadlines, and maintain a high level of professionalism throughout the process. Andy is always clear and communicative about project goals, and the work sites are always clean and well-organized. I highly recommend the Cornerstone Construction team to anyone looking for high-quality, budget-friendly work."

Cody Rasbach, Service Manager
Peak Mechanical

Peak Mechanical

"Cornerstone Construction should be your first and only call. I’ve been working with CC for over 10 years and know that when I call them or refer them to a client, the job will get done right, on budget, and within the time frame they say. I’ve been in the apartment industry in Central Denver for almost 20 years and have never been more confident in a referral. Their professionalism, communication, and responsiveness are second to none. Whether it’s helping budget a project for a client looking to purchase a property or helping an existing building owner renovate one unit or their whole building, Cornerstone Construction is always my recommendation."

Conner Piretti

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