




Door Replacement Services We Offer
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Bedroom Door Replacement
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Bathroom Door Replacement
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Interior Door Replacement
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Glass Door Replacement
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Closet Door Replacement
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Sliding Door Replacement
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Bifold Door Replacement
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Barn Door Replacement
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Wood Door Replacement
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Solid Core Door Replacement
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Commercial Door Replacement
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Prehung Door Replacement

Easy as 1, 2, 3...
1
Schedule Your In-Home Consultation
We begin with a detailed inspection to assess your openings, capture door measurements, and understand your needs.
2
Select Your Door Styles
Choose from a curated selection of interior door designs, finishes, and hardware to find the perfect match for your home’s style.
3
Get Your Doors Installed
Our trained installation team ensures precise alignment, smooth operation, and a clean worksite. Many projects are completed efficiently in just one day.
Why Choose Grinyer?
The Grinyer System replaces manual tape measuring and on-site cutting with precision digital measuring and robotic factory finishing.
This new process allows us to custom fit fully-finished doors while keeping your existing frames, eliminating demolition and preventing misalignment.
The result is doors installed right the first time, engineered to last, and overall project cost savings passed to you.
The Grinyer System Difference
Two approaches. Two different results.

QUALITY NAME-BRAND MATERIALS
Superior Doors Built to Last
We use name-brand door slabs from trusted manufacturers like Masonite and JELD-WEN. Superior materials provide lasting strength, durability, and results built to last.
DIGITAL MEASURING
Doors that Fit & Function Better
We use high-tech digital measuring to capture precise dimensions of your existing door frames, eliminating guesswork and ensuring consistent door alignment throughout your home.
FACTORY ROBOTIC CUTTING
Consistent Alignment in Every Opening
We robotically cut every door in our state-of-the-art factory. This ensures correct proportions, clean edges, and consistent alignment without the errors of on-site trimming.

FACTORY PAINTING
A Finish that Looks Better and Lasts Longer
Our multi-step finishing process creates a smooth, durable surface designed to resist everyday wear and maintain colour over time.
Process
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Precision rotary sanding
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High-adhesion primer
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Fine sanding of primer
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Sherwin-Williams coating
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Controlled oven curing
Benefit
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A smoother, uniform surface
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Stronger bond and lasting finish
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Ultra-smooth, refined finish
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Rich, consistent colour depth
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Hardened surface built to last

EXPERT INSTALLATION
Installed Right the First Time
Our professionally trained team installs every door, ensuring proper alignment and smooth operation. The process is clean, efficient, and done right the first time without demolition.
See Our Work


Why Professional Door Installation Matters
Interior doors affect privacy, sound control, and the overall feel of your home. Poor installation causes uneven gaps and sticking doors, while precision installation ensures smooth operation and clean lines.
Upgrading your interior doors is one of the most impactful improvements you can make.
What Sets Our Door Installers Apart?
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Trusted Ontario specialists since 2013
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Over 4,000 completed installations
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Certified, professionally trained teams
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Detail-driven craftsmanship
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White-glove service from start to finish


Trusted by Homeowners Across Ontario
Ready to Upgrade Your Interior Doors?
Schedule your free in-home consultation and experience the difference precision installation makes. Our team will guide you through styles, finishes, and options to ensure your doors elevate your home.
Door Installation FAQs
How long does interior door installation take?
Many projects are completed in just one day, depending on the number of doors and scope of work.
Do you replace door frames?
We offer framing and pre-hung installations when required. However, most homeowners choose our precision door replacement system to avoid unnecessary demolition while achieving a refined result.
What types of doors do you install?
We install shaker, raised panel, glass, and modern interior door styles for any opening. Find your door style.
Where are your doors factory finished?
Our Cambridge facility is equipped with advanced preparation and finishing systems designed for precision and consistency, delivering a durable, factory-grade result.








