CORE Building Group offers a full range of construction services designed to meet every need in the building process.

Whether you're a homeowner looking to create your dream home or a contractor needing specialized support, we have the expertise to deliver.

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Fast, stable foundation solutions installed in any season. Ideal for decks, docks, additions, and more—no waiting for concrete to cure, no site disruption. 

Helical Piles

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Durable, energy-efficient foundation systems that outperform traditional methods. Superior insulation, moisture resistance, and structural integrity—built to last.

ICF Foundations

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Superior energy efficiency and air sealing that pays off year-round. Spray foam fills every gap, resists moisture and mold, and keeps your space comfortable while lowering energy costs.

Spray Foam Insulation

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Functional, code-compliant spaces built to support your business. From tenant fit-outs to ground-up builds, we manage every phase with precision and care.

Commercial Construction

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Safe, efficient site prep that sets your project up right. We handle demolition, excavation, trenching, and grading with the right equipment and protocols.

Demolition & Excavation

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Homes built around how you actually live. We design and craft custom spaces that fit your lifestyle, prioritize function, and reflect what matters to you.

Custom Home Building

We hired CORE Building Group for an ICF foundation and helical piles installation, and the results were outstanding. Their expertise and attention to detail ensured a strong, energy-efficient foundation for our project. If you need specialized construction services in the GTA, this is the team to call!

"Top-Tier Craftsmanship
& Attention to Detail"

— Sarah L., Oshawa, ON

CORE Building Group exceeded our expectations! From demolition to final construction, their team was professional, efficient, and transparent. Our custom home build in the Durham Region was completed on time and within budget. Highly recommended for anyone looking for a reliable construction company!

"Seamless & Professional
from Start to Finish!"

— Mark T., Whitby, ON

Finding a trustworthy construction company can be tough, but CORE Building Group made the process easy. Their team handled our excavation and framing project with precision, keeping us informed every step of the way. Excellent service, fair pricing, and top-notch workmanship!

"Reliable, Transparent, and Cost-Effective"

— James R., Ajax, ON

CORE Building Group transformed our vision into reality with their expertise in spray foam insulation and excavation. The team worked efficiently, met all deadlines, and delivered exceptional results. We will definitely be using them for future projects!

"Highly Skilled &
Efficient Team!"

— Lisa M., Pickering, ON


Our knowledgeable team ensures every detail is accounted for, and every project is completed with the highest standards of quality and professionalism.

At CORE Building Group,
no project is too big or too small.

Let’s build something incredible together.