Door Repair in Markham —
Fast, Reliable & 24/7
J&R Window & Door Services has been Markham’s trusted name for door repair for over 30 years. We respond fast to residential and commercial door emergencies across Markham, Unionville, Cornell, Boxgrove, and the surrounding GTA — 24 hours a day, 7 days a week.
Professional Door Repair in Markham
for Homes & Businesses
J&R Window & Door Services has been repairing doors for Markham homeowners and businesses for over 30 years. Whether your front entry door won’t close properly, your patio sliding door is off its track, or your commercial storefront door was damaged overnight, our certified technicians arrive equipped to fix it — often in a single visit.
We serve every part of Markham: Unionville, Cornell, Boxgrove, Berczy Village, Milliken, Cathedral, and communities along Highway 7, 16th Avenue, and Markham Road. Residential homes, condos, townhouses, retail plazas, offices, and warehouses — all welcome.
Quick Facts
- 30+ years serving Markham & GTA
- Certified, licensed technicians
- 24/7 emergency availability
- Residential & commercial covered
- Most repairs completed in one visit
- Free estimate before any work begins
Common Door Problems We Fix
in Markham
From minor hardware failures to full door replacement — J&R Window & Door Services has the tools, experience, and parts to resolve any door issue on the spot across Markham.
Broken Glass Panels
Cracked, shattered, or fogged glass in entry, patio, and interior doors. Same-day glass replacement across Markham.
Loose or Damaged Hinges
Sagging or noisy doors caused by worn, stripped, or broken hinges. We repair and replace all hinge types on site.
Jammed or Twisted Roller Tracks
Sliding doors that stick, grind, or derail. Track realignment and roller replacement done in a single visit.
Broken Door Handles
Loose, broken, or outdated handles on all door types. We carry a wide range of replacement hardware on the van.
Faulty or Damaged Locks
Deadbolts, knob locks, levers, and smart locks that won’t engage or have been compromised. Repaired or upgraded same day.
Misaligned Door Frames
Doors that don’t close flush or let in drafts due to frame shift or settlement. We realign and reseal for a perfect fit.
Rust Damage
Steel and metal doors corroded by Markham’s freeze-thaw cycles. We repair rust damage and apply protective finishes.
Rotting Frames
Wood door frames weakened by moisture and age. Partial or full frame replacement to restore structural integrity.
24/7 Emergency Door Repair
in Markham
Door emergencies don’t follow a schedule. Whether it’s a break-in at 2 AM on Markham Road, a shattered storefront on Highway 7, or a door that won’t lock in Unionville — J&R Window & Door Services is available around the clock.
Our emergency services in Markham include:
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Post-break-in door repair Same-day glass replacement and boarding for residential and commercial doors. We secure the opening immediately to protect your property.
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Vandalism & graffiti damage repair We re-key or replace compromised locks on the spot and repair surface damage to door panels and frames.
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Door frame & alignment repair Forced entry and impact damage often distorts frames. We realign and reinforce on-site — no return trips, no waiting around.
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Broken key extraction Keys snapped inside deadbolts, knobs, or levers. We extract safely and replace the cylinder without damaging the lock body.
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High-security lock installation After a break-in, change who has access without replacing the entire door. We upgrade to Grade 1 deadbolts and smart locks same day.
Facing a door emergency in Markham right now?
Call 416-666-8715 — We Answer 24/7Door Types We Repair & Replace
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Glass doors Track, roller, and full panel replacement for patio, sliding, and interior glass doors.
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Steel & metal security doors Panel and full door replacement. Structural reinforcement for high-risk entry points.
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Storefront & commercial entry doors Emergency board-up and replacement for retail and office storefronts throughout Markham.
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Wood & fiberglass doors Frame repair, glass inserts, weatherstripping, and full door swaps for residential and commercial properties.
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Patio & sliding doors Track realignment, roller replacement, and glass panel replacement — completed in one visit in most cases.
Door Repair in Markham
- Licensed under Ontario Building Code standards
- Thousands of door repairs completed across the GTA
- Consistent 5-star reviews from Markham homeowners
- Quality guarantee on every repair and replacement
Why J&R Window & Door Services
Is Markham’s Top-Rated Door Repair Company
We Assess, Recommend & Repair in One Visit
No return trips to the shop, no waiting around. Our technicians carry the tools and parts needed to assess the damage, provide a clear recommendation, and begin repairs with your approval — all in a single visit across Markham and the GTA.
24/7 Availability — Real People Answer
When you call J&R Window & Door Services at 416-666-8715, a real person answers — day or night, weekends and holidays included. No automated queues, no call centres. Direct dispatch to a Markham-area technician.
Transparent Pricing — Written Quote Before We Start
We provide a clear, written quote covering all options before any work begins. No hidden fees, no pressure to upsell. Whether you need a hinge replaced on 16th Avenue or a full commercial door replacement on Highway 7, you’ll know the cost upfront.
Quality Guarantee on All Work
Every door repair and replacement is backed by our quality guarantee on materials and workmanship. If any issue arises after the job is complete, we return to resolve it — at no additional charge. That’s our commitment to every Markham customer.
Residential Door Repair
in Markham
Keeping your home safe and energy-efficient starts with a properly functioning door. J&R Window & Door Services provides comprehensive residential door repair for homeowners throughout Markham — from Unionville to Cornell, and Berczy Village to Milliken.
Front Entry Doors
Your home’s first impression and primary security point. We repair and replace all front entry door types including wood, steel, and fiberglass.
Back & Side Doors
Often overlooked but equally important for security and energy efficiency. We service all rear and side entry doors in Markham homes.
Patio & Sliding Doors
Track replacement, roller repair, and glass panel replacement for patio doors in Markham condos, townhouses, and detached homes.
Interior Doors
Bedroom, bathroom, closet, and French doors that stick, sag, or won’t latch. Hardware upgrades and frame repairs done cleanly and quickly.
Signs Your Markham Home’s Door Needs Professional Repair
- Drafts or light seeping through gaps around the frame
- Difficulty locking, unlocking, or latching the door
- Visible cracks or breaks in glass panels
- Sagging, warped, or misaligned door frame
- Noisy, stiff, or squeaking hinges
- Condensation or frost forming inside the door frame
Commercial Door Repair
in Markham
A damaged or malfunctioning door at your Markham business creates safety risks, reduces energy efficiency, and makes a poor impression on customers. J&R Window & Door Services works with offices, retail stores, restaurants, warehouses, and multi-unit residential buildings throughout Markham.
Retail Storefront Doors
Glass panel replacement, frame repair, and hardware upgrades for retail businesses on Highway 7, Woodbine Avenue, and Kennedy Road in Markham.
Office & Corporate Entry Doors
Professional door repair with flexible scheduling to minimize disruption to your Markham business operations — including after-hours and weekend service.
Warehouse & Industrial Doors
Heavy-duty door repair for industrial and warehouse facilities in Markham’s business parks near Steeles Avenue and 14th Avenue.
Multi-Unit Residential Buildings
Common entry doors, lobby doors, and unit entry doors for condos and apartment buildings across Markham. Fast response to keep tenants safe.
Restaurants & Food Service
Kitchen and service entry doors with commercial-grade hardware. We understand the urgency of door failures in food service environments.
Flexible Scheduling
We offer early morning, evening, and weekend appointments for commercial clients to ensure zero disruption to business hours across Markham.
Need commercial door repair in Markham? Our team responds to emergency failures at any hour.
Call 416-666-8715Why Markham Homeowners & Businesses
Choose J&R Window & Door Services
30 years of honest pricing, fast response, and genuine care for every customer — residential and commercial alike.
24/7 Emergency Response
Calls answered around the clock — nights, weekends, and holidays. We prioritize emergency door failures and dispatch fast.
Written Quotes Upfront
Every cost is documented before work begins. No guesswork, no add-ons, no surprises at the end of the job.
Certified Technicians
Trained, licensed, and punctual — following Ontario Building Code standards on every residential and commercial door repair.
Quality Guarantee
All repairs and replacements backed by our service guarantee. If any issue arises, we return to resolve it at no extra charge.
Single-Visit Repairs
We arrive stocked with parts and hardware to complete most repairs in one visit — no back-ordering, no second appointments.
All of Markham Covered
Unionville, Cornell, Boxgrove, Berczy Village, Milliken, and every community along Hwy 7, 16th Ave, and Markham Road.
Residential & Commercial
From single-family homes in Berczy to multi-tenant office buildings near Steeles — every property type is welcome.
Clean, Professional Service
We treat your home or business with respect. Work areas are fully protected and cleaned before we leave every job site.
Our Simple 4-Step Door Repair Process
We’ve made the entire experience straightforward so Markham homeowners and business owners get a professional result with minimal disruption to their day.
Free On-Site Inspection
A J&R Window & Door Services technician visits your Markham property at a time that works for you. We inspect the door, frame, hardware, and glass thoroughly — at no charge — and assess the full scope of the issue before recommending any repair.
Clear Written Quote
We provide a detailed written quote covering all options and pricing before we touch anything. No pressure, no upselling. You approve the work — then we begin.
Expert Repair or Replacement
Our certified technicians carry the tools and parts to complete most door repairs in a single visit. All work areas are protected and cleaned after the job is done — in Markham homes and businesses alike.
Inspection & Guarantee Confirmation
Every completed job is inspected for full function — glass fit, lock engagement, frame seal, and hinge operation. You receive confirmation of your quality guarantee before we leave. If any issue arises, we return to resolve it.
Markham Homeowners & Businesses
Trust J&R Window & Door Services
Our front entry door wouldn’t lock properly after a break-in attempt. J&R came out the same evening, reinforced the frame, and installed a new deadbolt. Professional, fast, and exactly what they quoted us over the phone.
Our patio sliding door derailed completely in the middle of winter. J&R diagnosed the problem, replaced the rollers and straightened the track in one visit. The door glides perfectly now. Highly recommend to anyone in Markham.
We had our storefront door glass shattered by a delivery mishap on a Saturday morning. J&R boarded it up within two hours and had the permanent glass installed by Monday. Saved our retail weekend. Outstanding service.
Frequently Asked Questions —
Door Repair Markham
Answers to the questions Markham homeowners and business owners ask us most about door repair, replacement, and emergency service.
Door Repair Service Areas
Near Markham
J&R Window & Door Services serves Markham and surrounding communities across the Greater Toronto Area. Our mobile technicians travel Highway 407, Highway 7, 16th Avenue, Markham Road, and Woodbine Avenue to reach you fast — no location is too far for same-day or emergency service.
Don’t Leave Your Markham Home or Business Vulnerable
J&R Window & Door Services provides fast, reliable, and guaranteed door repair in Markham
for residential and commercial properties — 24 hours a day, 7 days a week.