The Renovators
“From day one meeting with David to the end of the completion of the main floor renovation they were very professional and organized.”
Best General Contractors in Markham, ON
24 companies listed · all 24 in Markham · 3 open 24/7 · 18 open weekends · 21 rated 4.5+
Data verified October 21, 2026
Toro Steel Buildings
“I'm very happy with the building and would highly recommend Toro Steel Buildings.”
Handy Birds Services
“The owner is very friendly and cooperative, maintains cleanliness in his work and communicates effectively”
The Painters Group
“The crew that worked on my house were efficient, professional, clean, and trustworthy.”
P&O General Construction Inc
“We absolutely love how the shower looks now and all the problems were fixed.”
Reno Compass
“Our project manager helped us through the whole process and the workers were professional, tidy and punctual.”
Listed for homeowners in and around Markham, ON, these 24 companies take on multi-trade work, from a basement build-out to a full renovation. What each one says about licensing, hours and the work it takes on comes from its own website; ratings and quotes come from public reviews.
Area overview: Markham, ON
All 24 companies we list here are in Markham itself. We have 84 companies in Markham on file; this page shows the highest-rated 24. The companies on this page are rated from 4.1 to 5.0 across 2,065 reviews; 14 have 50 or more reviews and 21 are rated 4.5 or higher. The topics that come up most in reviews of the companies on this page are "price", "communication" and "cleanliness". 3 are open around the clock; 18 are open on Saturdays and 9 on Sundays. The services the companies on this page list most often on their websites are basement renovation (2), bathroom renovation (2) and kitchen renovation (2). 2 show a licence on their websites. Domain records put 7 websites of the companies on this page at ten or more years old; the oldest dates from 2002. 4 offer emergency call-outs; 1 offers financing or payment plans; 10 give free estimates; 2 are family- or locally-owned and 1 lists coupons or special offers. We have a website on file for all 24 of the companies on this page; 23 publish a contact page; 19 list a public email and 3 take bookings online. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book.
Do any of these companies quote without charging?
The free estimate promises less on a multi-trade job, and it is advertised by 10 of the 24 companies here. Free normally buys a walk-through and a ballpark figure. A real price takes measuring, trade pricing and desk time, so design-build firms often charge for that stage and credit it against the work if you sign.
X&H Construction
“There was a lot of messages going back and forth as we had plenty of questions but Carrie Who is the project coordinator was very helpful every step of the way.”
Span-Co General Contracting Services Ltd.
“Just did a bathroom renovation recently and we were very pleased with the professionalism of the team, the quality of the work and the how the project was managed.”
Lucky 5 Group Renovation Services
“Another advantage of going with this company is that they have a show room where you can select all materials in one place.”
Avanti Landscaping
“Estimation was very quick, quote was reasonable and crew was very hardworking.”
Yok Mei Construction Corp.
“I would definitely recommend Chen and his crew for their professionalism, friendly and an amazing results for the job well done renovating our whole kitchen.”
Canadian Constructor Creations Inc.
“From our original meeting, he had a high level of confidence about the work that needed to be done and eased some of my own worries.”
Kingsview Management
“Thank you Kingsview Management for the exceptional service!”
Zhuo's Renovation
“Highly recommend them and will definitely consider them for any future renovation.”
HP Flooring
“The stairs and floors were made very well by the shopkeepers, and Tom and another shopgirl were also very responsible.”
Winmar Property Restoration Specialists
“We were very pleased to come back home to brand new flooring with furniture exactly where it was before!”
Canadian Decks
“It completely transformed our backyard and gives us the perfect mix of shade and open space.”
RFS Remodeling Group
“Over all I would recommend Rfs to ayone who is looking to get creative and need help and good advice .”
Master Edge Homes
“Pleasant and professional company to deal with.”
Canbilt Group Inc.
“Fernando Canbilt has been my go to guy for my flood in my basement.”
Molson Flooring
“All the store staff are very patient to answer all our questions.”
Orange Duck Construction Company
“The provided a detailed estimate and finished the work on time”
Home Town Construction Ltd 宏通装修
“Even the most challenging corner that I wanted to turn into a library, your team was able to design and install at record time.”
Elite Renovators Load Bearing Wall Removal
“Their recommendations saved me a lot of trouble and I was able to have a better final result.”
Why these companies made our list
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