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Our  Construction  Services

CornerStone offers three general types of construction projects:

New construction

New Construction

Our team of experienced professionals is equipped to handle all aspects of your new construction project, from design to completion. With nearly two decades of experience, we’ve tackled everything from the construction of the finest residential buildings to high-tech commercial spaces and modern condos.



Need to update your home or business? Our renovation services include everything from full-scale historic restorations to small remodels and updates. We will work with you to create a plan that fits your vision and budget.



Whether you want to update a single room or undertake a major remodel, we have the skills and experience to turn your ideas into reality.

Contracting  Work  We  Do  In  Maine

Here are some of the project types we get asked to do all the time:



Need more space? From small bump-outs to large home expansions, let us help you create the space you need in your home or business.

Condo Conversions

Condo Conversions

If you’re interested in converting an existing property into condominiums, we can help. Our team has experience with all aspects of condo conversions, from design and construction to marketing and sales, with the help of our sister company Benchmark.

Restaurant Office Design

Restaurant and Office Design and Build-Outs

Looking to open a new restaurant or occupy new office space? We can help with the design and construction of your business. We’ll work with you from concept to completion, to create a space that meets your needs and exceeds your expectations.

Custom Kitchen

Custom Kitchens

The kitchen is often the heart of the home, and a custom kitchen can be a dream come true. Whether you want a sleek, modern design or a traditional, timeless look, we can help you create the kitchen of your dreams.

Media Rooms

Media Rooms, Great Rooms and Master Baths

Ready to upgrade your home’s entertainment? We offer a full range of services for media rooms and great rooms, including design, construction and finish work.

Finished Basement

Finished Basements and Attics

Unused space in your home can be transformed into functional, comfortable living areas with the help of our team. Need help with the vision? We have designers on staff, ready to assist.

Home spas

Home Spas and Master Baths

Looking to add a luxurious touch to your home? Consider a custom home spa or upgraded master bath. We can help you design and build the perfect space for relaxation and rejuvenation.

Custom Closets

Custom Closets

A custom closet can make a huge difference in the organization and functionality of your home. Find what you’re looking for, when you need it with the perfect new closet buildout.

Porches and decks

Porches and Decks

Ready to enjoy the outdoors in comfort? We offer a full range of services for porches and decks, including design, construction and finish work.


Floor Installs and refinishing

Ready for a new look for your floors? We offer a full range of flooring options, including hardwood, tile, cork, bamboo and carpets. Or, just want to bring your old hardwood floors back to life? We also finish hardwood floors.

Interior and Exterior finish

Interior and Exterior Finish and Trim Work

The finishing touches on a construction or renovation project can make all the difference. Our team is skilled in all aspects of interior and exterior finish and trim work, including painting, trim work and more.


New Stairwells

Ready to update your stairwell? We offer a full range of services for new stairwells, including design, construction and finish work.



A fresh coat of paint can make a big difference in the look and feel of your home or business. Our team is skilled in all aspects of interior and exterior painting, and we can help you choose the perfect colors and finishes to achieve the look you desire. Whether you need to freshen up a single room or paint the entire exterior of your home, we have the skills and experience to get the job done right.

Our  Service  Area

We serve Southern Maine from Brunswick to Biddeford, and the lakes region to the coast.

If you are in need of a professional, reliable, and experienced general contractor, look no further than CornerStone Building & Restoration. Contact us today to discuss your project and get started on bringing your vision to life.



“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!"