
Sliding Door Repair & Installation in Markham
Expert sliding door repair & installation across Markham — from Unionville to Markham Village. Licensed door team with 498+ completed projects.
Projects Completed
Years Experience
Client Satisfaction
Google Rating
How It Works
A simple, stress-free process from start to finish.
Send Your Request
Call or WhatsApp us 24/7 from Markham. Send photos, video, comments about what needs to be done, and your location.
Remote Estimate
We review everything, discuss details, and provide a clear estimate — often within hours, no visit needed.
Repair Process
Our licensed team arrives at your Markham home on the agreed date and completes your sliding door repair & installation to the highest standards.
Handover & Warranty
Final walkthrough with you, full cleanup, and warranty documentation provided.
Send Your Request
Call or WhatsApp us 24/7 from Markham. Send photos, video, and a description + your location.
Remote Estimate
We review everything, clarify details, and give you a price — often within hours.
Repair Process
Licensed team arrives at your Markham home and completes your sliding door repair & installation professionally.
Handover & Warranty
Final walkthrough, full cleanup, and warranty documentation.
Sliding Door Repair & Installation in Markham
Serving Markham's diverse community with professional sliding door repair & installation provider. Our licensed and insured team delivers quality workmanship, transparent pricing, and reliable service to homeowners throughout Markham.
As Canada's high-tech capital, Markham attracts professionals who expect efficient, high-quality service. We deliver exactly that.
With over 498 completed projects and a 4.9-star Google rating, RenoHouse is the name Markham homeowners trust. Serving Unionville, Cornell, and all Markham neighborhoods.
Markham's housing ranges from heritage homes in the Unionville village core to modern McMansions in Cornell and Angus Glen. Window and door upgrades must match each area's character — custom heritage-profile windows for Unionville's Main Street homes and energy-efficient modern units for Markham's extensive 1990s–2000s suburban stock.
Markham's continental climate brings hot summers and cold winters that stress window seals and door weatherstripping. We install high-performance windows throughout Markham — from Milliken to Cathedraltown — ensuring homes stay comfortable and energy-efficient through Ontario's demanding seasonal shifts.
Builder-grade windows and doors in newer suburban homes may meet minimum code requirements but often lack the energy efficiency and aesthetic appeal homeowners want. Upgrading to triple-pane windows, solid-core interior doors, and modern exterior doors improves both comfort and curb appeal significantly.
Average sliding door repair & installation cost in Markham and the GTA: $400–$1200 per window, depending on window type, size, and frame material (vinyl, aluminum, or wood).
Sliding Door Repair & Installation in Markham: Markham combines heritage homes in Unionville Main Street (some dating to the 1850s) with modern master-planned communities like Cornell and Wismer Commons. The city has a strong mix of detached homes, townhomes, and an emerging condo market near Markham Centre. Common issues like heritage renovation constraints in unionville's historic district make professional sliding door repair & installation services especially important for Markham homeowners.

What Sets Us Apart in Markham
Flexible Scheduling
Book sliding door repair & installation appointments in Markham that fit your life. Evening and weekend slots available.
Quality Guaranteed
We don't cut corners. Every project follows industry best practices with premium materials and meticulous attention to detail.
No Hidden Fees
Straightforward pricing for sliding door repair & installation in Markham. What we quote is what you pay — guaranteed.
Sound Familiar?
Markham homeowners tell us about these issues all the time.
Sliding door stuck or hard to move?
Track bent or full of debris?
Rollers worn out?
Lock or handle broken?
Screen door not sliding properly?
Drafts coming through the sliding door?
Markham homeowners — let's talk about your project
Free estimate, no obligation. We respond within 1 hour.
What Our Clients Say
“RenoHouse replaced all our windows in just two days. The new windows are beautiful, energy-efficient, and the team left everything spotless. Highly recommend!”
Michael R.
Oakville
“They replaced our 30-year-old garage door with a modern insulated one. Huge difference in curb appeal and our garage stays warm now. Great crew.”
Tom B.
Newmarket
“New sliding patio door looks amazing and seals perfectly. No more drafts! The team was in and out in half a day. Very professional.”
Karen S.
Markham
Our Sliding Door Repair & Installation Work
Professional sliding door repair & installation results from RenoHouse projects in Markham and across the GTA.

Sliding Door Repair & Installation
Markham

Quality Workmanship
Licensed & Insured
Like what you see? Let's talk about your Markham project.
Frequently Asked Questions About Sliding Door Repair & Installation in Markham
A sliding door that sticks or drags is usually caused by worn rollers, a dirty or damaged track, or a misaligned frame. RenoHouse technicians diagnose the exact cause and provide an effective repair — often restoring smooth operation in a single visit.
Yes, roller replacement is one of our most common sliding door repairs. Worn rollers make doors difficult to slide and can damage the track over time. RenoHouse carries replacement rollers for most major door brands and models.
If your door has a sound frame and the issues are mechanical — such as worn rollers, damaged weatherstripping, or a faulty lock — repair is usually the most cost-effective solution. Doors with warped frames, failed insulated glass, or structural damage may benefit from full replacement. RenoHouse provides honest recommendations.
Most sliding door repairs take one to three hours depending on the issue. Roller replacement, track cleaning, and lock repairs are typically completed in a single visit. RenoHouse works efficiently to restore your door's smooth operation.
Yes, RenoHouse can replace worn weatherstripping, install insulated glass panels, and adjust the door for a tighter seal — all of which improve energy efficiency. For older doors, upgrading to a new energy-efficient model may provide the best results.
Yes, RenoHouse provides a workmanship warranty on all sliding door repairs and installations. We ensure proper operation, secure locking, and effective weathersealing for your Markham home.
Builder-grade windows often meet minimum code requirements but lack premium features like triple-pane glass, argon gas fill, and superior weatherstripping. Upgrading improves energy efficiency by 20–30%, reduces outside noise, and enhances curb appeal — a smart investment that pays for itself through lower energy bills.
Even in homes 10–15 years old, builder-grade windows may show signs of seal failure (fog between panes), drafts, or difficult operation. If you notice condensation between glass panes, increased energy bills, or difficulty opening/closing, it's time for professional assessment.
Modern fiberglass and steel entry doors with sidelights are the most popular choice for newer suburban homes. They offer superior insulation (R-value 6–8 vs. R-2 for older doors), excellent security, and contemporary styles that dramatically improve curb appeal.
Sliding Door Repair & Installation Across the GTA
Professional sliding door repair & installation also available in these cities.
Get a Free Sliding Door Repair & Installation Estimate in Markham
Contact us today for a free, no-obligation quote for your sliding door repair & installation project in Markham. We'll get back to you within 1 hour.







