CornerStone  Building  &  Restoration

Welcome to CornerStone Building & Restoration, your premier Portland, Maine contractor. We are a full-service design, building, restoration and renovation company with a reputation for excellence in the industry. Founded by local real estate expert Tom Landry, we have built a strong track record of success, working on a wide range of residential and commercial projects throughout southern Maine. From ground-up construction of high-tech commercial spaces and modern condos to full-scale historic restorations and construction of the finest residential buildings, we have the skills and experience to bring your vision to life.

Why  CornerStone?

At CornerStone Building & Restoration, we understand that building or renovating a home or business is a major investment of time, money and patience. We have learned a lot in our nearly two decades of operating, striving to make the process as smooth and stress-free for clients as possible, while providing the highest quality workmanship at a fair price.

Unlike many other local contractors, we pride ourselves on full transparency in all material and labor costs. All of our clients receive ongoing financial updates, with reports directly exported from our software platform, Buildertrend. We work with our clients each step of the way to make sure everyone is on the same page and aware of progress made vs financial expenditure.

Contact us today to learn more about how we can help you turn your dreams into reality.



“I was a nervous renovator because of timing and budget - I got this project started right in time for the Holidays... Well, not only did CornerStone deliver on timing, they came in on budget and did an amazing job. My kitchen came out exactly as I had dreamed.”


“We could not be more pleased with the process and the results made possible by CornerStone. The staff have been great communicators: answering calls and questions 24/7, providing sound advice and direction and emailing photos to us on a regular basis since we couldn’t be there in person… There is nothing the staff at CornerStone wouldn’t have done for us to get the project done how we wanted and when we wanted.”


“CornerStone was great to work with. They were willing to accommodate everything we wanted to do on our project (expanding the ½ bath), but most impressively they were the exact opposite of what most contracting situations end up being. We could reach them whenever we wanted, they were very responsive, on-time and honest. There was one sub-contractor (plumber) who did not meet CornerStone’s high standards and those demanded by the project, so they were able to bring in a different one on very short notice, who did a great job. Despite our home being built 135 years ago, the project ended up not hitting the anticipated bumps in the road. When all was said and done, the project came in under the estimated amount, which was another very nice surprise.”


"Renovating a home in a historic district comes with extra challenges but Cornerstone has helped us every step of the way and are always one step ahead of things (e.g., lining up subcontractors, working on the permit process, scheduling inspections, etc.). They have made the renovation process stress-free and we look forward to more work together!"

Contact Us

If you are in need of a reliable, professional contractor who will work to deliver unparalleled results, look to CornerStone Building & Restoration. 

Contact us today to discuss your project and learn more about how we can help you turn your dreams into reality. 

"*" indicates required fields

Project Address
Drop files here or
Accepted file types: pdf, rtf, doc, docx, pages, Max. file size: 25 MB.