The Grinyer System Makes the Difference
The Grinyer System uses advanced digital measuring to custom-build each door for your existing openings. That precision eliminates guesswork, delivers an improved fit and factory-quality finish, and creates results traditional door replacement simply can’t match.
Why Homeowners Choose Our Interior Door Replacement
Our system delivers measurable improvements in fit, finish, and long-term performance.
Better Fitting Doors
Digitally templated for proper alignment and smooth closing.
Keep Your Existing Frames
No unnecessary demolition in most homes.
Superior Factory Finish
Consistent, durable finish prepared before installation.
Improved Function
No rubbing, sticking, or uneven swing.
Long-Term Performance
Precision fit reduces wear over time.
Get Inspired
View our interior door replacement projects
Interior Door Replacement Near You
We provide interior door replacement throughout the Greater Toronto Area and Golden Horseshoe, including communities surrounding Mississauga, Burlington, and Cambridge.
If you’re searching for a trusted door company or interior door contractor near you, our team is ready to help.
Ready to Replace Your Interior Doors?
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Interior Door Replacement FAQs
How much does interior door replacement cost?
Interior door replacement cost depends on the door style, material, and number of doors being replaced. We provide a free in-home consultation to measure your openings and provide an accurate quote for your project.
How long does interior door replacement take?
Many projects are completed in just one day, depending on scope.
Can you replace interior doors without replacing the frame?
Yes. In most homes, we replace the interior doors while keeping your existing frames. Our digital measuring system allows new doors to be precision-fit to your openings without unnecessary demolition.
Will there be drywall damage?
Our system is designed to minimize disruption and avoid unnecessary structural changes.
Do you paint the doors?
Doors are factory-prepared and professionally finished for consistent quality.
What’s the difference between traditional door installation and your system?
Traditional door installation often relies on manual measurements and on-site adjustments. Our process uses digital measuring and factory preparation to ensure each door is built specifically for your home before installation day.
Do you also provide closet door replacement or sliding door installation?
Yes, we replace interior doors of all types, including closet doors, sliding doors, and barn doors.
Are solid core interior doors worth it?
Solid core interior doors provide improved sound control, durability, and a more substantial feel compared to hollow core doors. Many homeowners choose solid core doors when upgrading their interior door replacement project.
We also provide closet door replacement, barn door installation, and custom closet systems. Explore our related services to learn more.
Barn Door Replacement page
Planning a renovation or new build? Learn more about our professional interior door installation services.
Interior Door Installation page