Cornerstone Services Group Inc.

Building Quality Custom Homes Throughout Niagara, Orleans, and Erie Counties



Who We Are

Cornerstone Services Group Inc. offers the best in new home construction services throughout Niagara, Erie, and Orleans Counties.  With over 35 years of local home building experience, our team is knowledgeable and well qualified to lead you through your new home project.  Cornerstone Services Group Inc. is committed to providing our clients with quality custom homes, delivered on schedule and within budget.
Our staff is available to personally meet with clients one-on-one, to better guide you through the entire process including your home site search, plan design, financing options, as well as offering existing home real estate services.



2012 Square Feet Plus Finished Walkout
3 Bedrooms, 2 1/2 Baths

3390 Square Feet

4 Bedrooms, 3 1/2

2972 Square Feet

3 Bedrooms, 2 1/2 Baths

4200 Square Feet

4 Bedroom, 2 1/2 Baths

1651 Square Feet

2 Bedrooms, 2 Baths

2930 Square Feet

3 Bedrooms, 2 1/2 Baths

2466 Square Feet

3 Bedroom, 2 1/2 Baths

2455 Square Feet

3 Bedrooms, 2 1/2 Baths

2092 Square Feet

4 Bedroom, 2 Bath


1720 Square Feet
2 Bedrooms, 2 Baths

2729 Square Feet

3 Bedrooms, 3 Baths

1961 Square Feet

3 Bedrooms, 2 Baths

1788 Square Feet

3 Bedroom, 2 1/2 Baths

1198 Square Feet

3 Bedrooms, 2 Baths

1876 Square Feet

2 Bedrooms, 2 1/2 Baths

1348 Square Feet

2 Bedroom, 1 1/2 Baths

1594 Square Feet 

2 Bedrooms, 2 Baths

1651 Square Feet

2 Bedroom, 2 Bath


1731 Square Feet
3 Bedrooms, 2 Baths

1378 Square Feet

3 Bedrooms, 1 1/2 Baths

2093 Square Feet

2 Bedrooms, 2 1/2 Baths

2415 Square Feet

3 Bedroom, 2 1/2 Baths

2316 Square Feet

3 Bedrooms, 2 1/2 Baths

1600 Square Feet

2 Bedrooms, 2 1/2 Baths

2800 Square Feet

3 Bedroom, 2 1/2 Baths

1600 Square Feet

2 Bedrooms, 2 Baths

3 Car/Bedroom/Bath Addition

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Family Viewing House

What Clients Say

Hear It From Them


“We would like to take this opportunity to let you know what a great experience we had designing our home with Cornerstone Services Group Inc. From the moment we met Jeff, Ralph and Pat we felt very confident that they would be able to be sensitive to our needs and at the same time achieve our desired results. We were apprehensive about building a new home; however, Jeff calmed our fears by explaining everything and answering our many questions. They helped to make this a very enjoyable experience for us and made  our dream become reality. They are very knowledgeable, helpful, friendly, and a pleasure to work with. We feel lucky to have met and worked with Cornerstone Services Group; and we will definitely recommend them whenever the occasion arises.”

“My wife and I felt it was absolutely necessary to express our appreciation and sincere thanks. There are two individuals that we must personally recommend; Jeff Heideman and Ralph Dufour. I cannot list the number of times they put aside what they were doing to address our concerns. The result was always the same…they met or exceeded our expectations. Before buying we had heard a lot of nightmare stories about building a house. Jeff and Ralph, along with the professional crews they work with, made our experience a pleasure. Ralph was diligent in his progress towards a timely completion with a genuine concern for our satisfaction, and when Jeff came through for a follow up, we could not find a significant thing wrong with our house. We cannot say enough about their level of commitment to us and our appreciation of that commitment.”

Beth and John

Lockport, New York


Lockport, New York

“We are writing to express our sincere appreciation of the outstanding work done by Mr. Jeff Heideman. This is a dream come true for us and we couldn’t have done it without his involvement. He is a great person to work with and we can’t say enough about his conscientious, sincere, and hardworking ethic. Jeff is certainly a person one can trust to get things done.”

“We would like to take this opportunity to express our deep appreciation and gratitude that we have for Ralph, Jeff, Pat and staff. Throughout the process, they made themselves available to our needs and questions. We could not be happier with his continued patience and diligent professionalism.”

Dan and Dana

Pendleton, New York

Charlie and Amy

Amherst, New York

“When my wife and I decided to design our retirement home, I felt confident giving our plans to Jeff; who is an honest, caring and highly professional man. I personally would recommend them to anyone considering buying a new home.”

“Having a child with disabilities has been a challenge for my husband and I. Along our journey we have had many obstacles to hurdle, some easier than others. When it came to the hurdle of choosing a wheelchair accessible home for our son David we began our journey very apprehensively. Throughout the process we were treated with the utmost professionalism and consideration. We were so pleased with the outcome of our home we have spoken to Jeff about having other families with children who are handicapped view our home. Thank you for designing such a beautiful home my family that we will enjoy for many years to come”

Walter and Eileen

Pendleton, New York

Amy and Joe

Wheatfield, New York

Contact Us

Request a complimentary new home building consultation.


Contact Jeff @716-628-1088

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