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Residential and commercial · York Region
Your fastest solution for residential and commercial properties in Markham. From urgent repairs to planned replacements and installations.
4.9 out of 5 on Google · 180 reviews. Rating snapshot as of 2026-09-27.
Lontarian
“Fast and reliable service. We needed to fix a broken window crank in a rush (required since our house was in the process of getting sold ). They sent a person on a holiday, took a look, explained the repair and got it done the very next day. We are super happy they helped us in such a rush. 100% recommended.”
Jim Kronfli
“My front glass storm door shattered into a million pieces. Within 24 hours they came to my house in Unionville, and gave me an estimate. Alex took the frame of the storm door with him after agreeing on the price and in just couple of days the storm door was back. Perfect service. Perfect gentleman Alex. Will definitely call them again if ever needed. Fantastic job.”
Jordan Kaufman
“What a wonderful company, David looked after my issues with 4 doors so quickly and professionally I couldn’t be more happy. Total gentleman and the company is responsible and timely with appointments and booking. You can’t go wrong!”
Gloria Morris
“I called Build and Fix when I found that I could not open my back French doors this Spring! One side had dropped down considerably. I called and Max came over to look at the situation . It required taking the doors off and re-positioning them. We booked a convenient time and he came over virtually at the end of the day due to a longer spot before me but he stayed, completed the job even though it was 7:30 when he left. He was professional, cheerful and left the site immaculate. Mary at the front desk was my go to with questions and she too was always both helpful and on top of things. Communication with them was terrific. You never waited. The job was done definitely to my satisfaction. The price was reasonable . I’d definitely recommend using them for your needs!!!!”
Owen Carroll
“Responded quickly to my door problem and provided options for repair, which was done immediately. Would recommend this company.”
Billy Bob
“Great company … excellent work repairing my door . The problem with the door was an interior bolt so a picture wouldn’t show anything .. but it was not an easy fix … all was done in a timely and skilled fashion! My building is located in Scarborough. The door was a commercial fire exit door. Repair wait time 1–2 hr”
Kunj Patel
“Excellent and incredibly fast service! My door that needed urgent attention, and they responded immediately. The technician arrived quickly within an hour. The pricing was very fair for such a rapid turnaround. I highly recommend them for any urgent glass repair needs!”
On-site door work, photographed by our customer Jordan Kaufman.
Customer photo reviews
Verified customer jobs in Markham come first, followed by related work from across our service area. Open a review for its original feedback and photos.
180 customer ratings
Lontarian
Originally posted on Google“Fast and reliable service. We needed to fix a broken window crank in a rush (required since our house was in the process of getting sold ). They sent a person on a holiday, took a look, explained the repair and got it done the very next day. We are super happy they helped us in such a rush. 100% recommended.”
Jim Kronfli
Originally posted on Google“My front glass storm door shattered into a million pieces. Within 24 hours they came to my house in Unionville, and gave me an estimate. Alex took the frame of the storm door with him after agreeing on the price and in just couple of days the storm door was back. Perfect service. Perfect gentleman Alex. Will definitely call them again if ever needed. Fantastic job.”
Jordan Kaufman
Originally posted on Google“What a wonderful company, David looked after my issues with 4 doors so quickly and professionally I couldn’t be more happy. Total gentleman and the company is responsible and timely with appointments and booking. You can’t go wrong!”
Gloria Morris
Originally posted on Google“I called Build and Fix when I found that I could not open my back French doors this Spring! One side had dropped down considerably. I called and Max came over to look at the situation . It required taking the doors off and re-positioning them. We booked a convenient time and he came over virtually at the end of the day due to a longer spot before me but he stayed, completed the job even though it was 7:30 when he left. He was professional, cheerful and left the site immaculate. Mary at the front desk was my go to with questions and she too was always both helpful and on top of things. Communication with them was terrific. You never waited. The job was done definitely to my satisfaction. The price was reasonable . I’d definitely recommend using them for your needs!!!!”
Owen Carroll
Originally posted on Google“Responded quickly to my door problem and provided options for repair, which was done immediately. Would recommend this company.”
Billy Bob
Originally posted on Google“Great company … excellent work repairing my door . The problem with the door was an interior bolt so a picture wouldn’t show anything .. but it was not an easy fix … all was done in a timely and skilled fashion! My building is located in Scarborough. The door was a commercial fire exit door. Repair wait time 1–2 hr”
Kunj Patel
Originally posted on Google“Excellent and incredibly fast service! My door that needed urgent attention, and they responded immediately. The technician arrived quickly within an hour. The pricing was very fair for such a rapid turnaround. I highly recommend them for any urgent glass repair needs!”
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Work at these locations includes jobs through facilities contractors. Logos belong to their owners; no affiliation, sponsorship or endorsement is implied.
5 local services
These are the jobs that come up most often here. Every other service we offer is available in this area too.
Markham pairs one of Canada's largest concentrations of tech-sector office parks with residential blocks that range from 1980s subdivisions to master-planned communities built in the last decade. Older sections carry original vinyl windows nearing the end of their working life, while newer developments still lean on standard builder patio doors and sliding units.
Customer projects
Original job photos from Door N Window customers in Markham, paired with their full review and labelled before-and-after only when confirmed.
Before and after · Original job photographs
Two related door-glass jobs: a commercial entrance door and a shattered patio pane. Slide to compare each original before-and-after pair. These are examples from our wider portfolio, not a claim that the jobs took place in Markham.
After
BeforeDrag left or right to compare. Original job photos from different viewpoints.
Commercial · Glass entrances
From a boarded door opening to a new glass door, with the surrounding entrance glazing retained.
Original job photographs
After
BeforeDrag left or right to compare. Customer photos from different viewpoints.
Mississauga · Peel Region
The shattered panel was removed and the patio door was restored with replacement glass, documented in the customer's original photos.
Photos and review by Oleh Oliinyk · Read the full story
Real work · In motion
Door-jamb adjustment, metal door frame cutting, hardware fitting and exterior sealing. Four short clips from real on-site work.
Short clips. No sound. Motion is paused.
A close-up of a timber door jamb being carefully trimmed around the strike-plate recess.
Door frame repairs →A close-up of our technician cutting a metal door frame during on-site work.
Commercial door repairs →Mounting hardware being positioned and checked above a metal door during on-site installation.
Door closers and push bars →A close-up of sealant being applied along the joint between an exterior frame and brickwork.
Caulking and sealing →Emergency
Break-in, storm damage or an entrance that will not lock. We secure the opening first, then handle the permanent repair.
How it works
Call or send the details. Photos are helpful, but optional.
We assess the job on site. You approve the price before paid work starts.
We secure unsafe openings and arrange the agreed repair or installation.
An itemised invoice and a one-year warranty on labour and materials.
Thousands of jobs completed. Residential and commercial expertise. Insured, WSIB covered and ready to help 24/7.
Insurance claims
We guide you through the claim and reimbursement process after a break-in or property damage, at no extra charge.
Coverage and reimbursement depend on your policy and your insurer's approval.
How we help with your claimService areas
Residential and commercial service across Toronto, Peel, York, Durham and Halton, plus Hamilton, Barrie and nearby communities.
FAQ
We serve Markham and usually arrange a free on-site estimate. If a visit is chargeable, we confirm that before booking. Your repair quote depends on the damage, materials, access and work required. You approve the price before any paid work begins.
We are available 24/7 and can dispatch a technician immediately for an emergency in Markham. For less urgent repairs, we can usually arrange a same-day visit. We confirm the estimated arrival time when you call.
All of it, including Unionville, Milliken, Cornell, Thornhill and the surrounding areas. We also cover the neighbouring municipalities, so if you are near the boundary it makes no difference which side you are on.
Yes. We work on storefronts, restaurants, offices, industrial units and managed buildings in Markham. After-hours visits can help reduce disruption. We assess access and safety requirements before agreeing how the work will be carried out.
Photos help us understand the problem and prepare for the visit, but an accurate price usually needs an on-site inspection. We normally arrange a free estimate visit to check the damage, measurements and materials. Any visit fee is confirmed before booking, and you approve the repair quote before any paid work begins.
Call (647) 643-5837 and describe what happened, or send the details and we will call you back.
