Our Custom Built-Ins Burlington Services
Explore our custom built-ins Burlington offerings and see how we can enhance your space.
What We Offer in Wainscoting Mississauga
Slat Wood Accent Walls
Stylish accent walls tailored to your space.
Wainscoting & Board-and-Batten
Classic wainscoting designs for every home.
Coffered Ceilings
Elevate your space with coffered ceilings.
Custom Built-Ins
Functional and stylish built-in furniture.
About Cornerstone Trim Co.
Cornerstone Trim Co. is a specialty interior carpentry shop focused on accent walls, custom trim, and millwork for residential and commercial spaces across the GTA West. Founded in 2018 by Marcus Chen, a third-generation carpenter, our team is dedicated to craftsmanship. We have a four-person crew of journeyman carpenters who ensure tight reveals and clean job sites. We work exclusively with FSC-certified North American hardwoods, including white oak, walnut, and ash. Our process includes free in-home consultations with material samples, 3D renderings, and fixed-price quotes. We manage careful demolition and prep, with installation completed by our own crew. Every project includes a ten-year workmanship guarantee on installation. We serve homeowners, interior designers, and commercial spaces in Burlington, Oakville, Mississauga, and the GTA West.
Our Step-by-Step Process
Consultation
We meet to discuss your vision and bring material samples.
Design Rendering
Our team provides a 3D rendering of your proposed design.
Installation
Our skilled carpenters handle the installation with care.
Final Walkthrough
We ensure your satisfaction with a final walkthrough of the project.
What Our Customers Say
“The accent wall transformed our living room completely. The craftsmanship is top-notch.”
Emily R.
Homeowner
“Cornerstone Trim Co. consistently delivers beautiful, high-quality work for my clients.”
David M.
Interior Designer
“Their custom built-ins are functional and stylish. Highly recommend their services.”
Sophie T.
Business Owner
Frequently Asked Questions
Is wainscoting worth it?
Yes, wainscoting adds value and aesthetic appeal to your home.
How much does custom trim cost?
Costs vary based on design and materials; contact us for a quote.
What are the benefits of coffered ceilings?
Coffered ceilings enhance room depth and style, making spaces feel more luxurious.
Why choose FSC-certified wood?
FSC-certified wood ensures sustainable sourcing, supporting responsible forestry practices.
Can I see samples before deciding?
Yes, we provide material samples during the consultation to help you choose.
What is the process for a free consultation?
Contact us to schedule a consultation where we discuss your project and bring samples.