



About CornerStone Building & Restoration
Your Reliable Maine Contractor Serving The Greater Portland Area
Our Mission
To provide the highest quality workmanship and the very best client service.
Our VISION
To be a regional leader in commercial and residential construction, using the latest technology, standards and techniques to deliver the best construction services possible.
Our Promise
To treat our clients as we would like to be treated.
We will…
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- Complete projects on time and on budget
- Provide the highest quality workmanship
- Ensure the project fits client needs and budget
- Provide detailed & accurate estimates
- Return calls promptly and be on time
- Be professional, courteous and responsive
- Keep job sites clean, organized and safe




What We Do
CornerStone Building & Restoration provides a full spectrum of design, building, restoration and renovation services throughout southern Maine.
Residential & Commercial
● Construction of the finest residential buildings
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Full scale historic restorations
- New condo construction
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High-tech commercial buildings
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Remodels and additions
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Condo conversions
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Office design and build out
- Restaurant or bar design and build out
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Entertainment rooms, lounges and bars
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Custom kitchens
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Great rooms and media rooms
- Master baths and home spas
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Finished basements
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Finished attics
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Custom closets
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Porches and decks
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New floor installs – hardwood, tile, cork, bamboo, carpet or commercial
- Refinishing hardwood floors
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Interior and exterior finish and trim work
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New stairwells
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Replacement windows
- Painting
Don’t see your dream project listed?
Reach out and we’ll talk it through!
Our Sister Companies
Cornerstone is fortunate to work closely with our sister companies, Benchmark Real Estate and Home with Tom Landry, to leverage our collective talents, connections, and resources to accomplish more than we could alone. Tom Landry, a seasoned real estate professional with over 30 years of experience in the industry, founded and owns both companies. Tom is known for his scrappy work ethic and dedication to providing exceptional service to his clients, whether they are buying or selling a property. He is committed to building a better real estate culture in Maine one brick at a time and to supporting the local community through his business ventures.
Tom is also the host of Home with Tom Landry, a social media production and blog for homeowners, sharing vital real estate and home ownership information. The show features news, tips, stories and advice for all aspects of home ownership, from buying and selling homes, to maintaining them, to making them your own with landscaping and renovation concepts. With his extensive experience in real estate and construction, Tom shares his knowledge and insights to help homeowners and buyers navigate the ever-changing world of home ownership. Tune in for valuable information and entertaining stories from a true Maine icon.