Thompson Construction Inc
“Professionalism, attention to detail, and a commitment to excellence define their work.”
Best General Contractors in Port Colborne, ON
24 companies listed · 7 in Port Colborne · 7 open weekends · 17 rated 4.5+
Data verified October 21, 2026
Custommade Concrete
“They use high quality materials and we have gotten countless compliments for the work that we had done, and we have already given multiple referrals which have been equally as beautifully finished as our patio!”
Neilson Construction & Home Additions
“Not only great at what he does but a really good person.”
Character Custom Builders Inc.
“His guys, Arnold, Gabe and Darren were Supreme professionals, always friendly, hardworking, experienced and just nice people you would welcome on your property”
Dycan Contracting
“Phenomenal work, great communication, finished within budget as discussed, worked efficiently and has handled reno's in my house and within my office.”
Frank + Co. Construction Ltd.
“The employees sent were courteous and hard working which reflects on the excellent quality of work that was done.”
Listed for homeowners in and around Port Colborne, 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: Port Colborne, ON
Of the 24 companies we list here, 7 are in Port Colborne itself and 17 come from towns including Welland (4), Niagara Falls (3) and Ridgeway (2). 22 of the companies on this page have a rating, from 4.1 to 5.0 across 525 reviews; 2 have 50 or more reviews and 17 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (94%), quality (86%) and responsiveness (84%). The topics that come up most in reviews of the companies on this page are "price", "cleanliness" and "communication". 7 are open on Saturdays and 2 on Sundays. 10 have ten or more years of experience, the longest 35 years. 7 give free estimates and 2 are family- or locally-owned. We have a website on file for 23 of the companies on this page; 18 publish a contact page and 16 list a public email. 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 7 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.
Westwood Estates Port Colborne
“Schoalts is always so cordial and an honest businessman.”
Steworks Carpentry Inc.
T R Symonds Signature
Bartels Construction and Design
“I have had Scott do many Jobs on a couple of my houses and it's unbelievable what he and his team can do.”
Golden Eagle Hardwood Flooring Sanding & Refinishing
“I live in Whitby and he came out all the way for my project and stayed late to complete it on time !”
Johns Post Holes
“I thought communication with John and his wife was good, John did a great job, it didn't take long, he was friendly and professional, and impossible to find a better price with as good a quality job.”
Foundation Fix Inc.
“I would recommend them to others and will be using them for a couple of other properties that require foundation repairs.”
Lucchetta Homes
“Any questions we had during the process were always answered right away and the consultation and support they provided to help with both the exterior and interior design was invaluable.”
McKeen Construction
“They did a great job, always kept us updated and informed about the schedule, and regularly checked in to make sure things were on track and done the right way.”
Sider Bros Builders LTD
“We had a great experience working with them and would not hesitate to recommend them!”
Stewart Cistern Services
“Excellent service, couldn't be happier, very prompt, courteous, friendly and professional, Would highly recommend them!”
Rich Home Inc.
“Roman and his team work extremely hard and kept us engaged at each stage of the process to ensure we understood what work would be done and our options.”
Openview Sunrooms
“We recently had a sunroom installed by openView and we can not say enough about the costumer service.”
AMG Drywall Taping Inc.
“Andrew showed up on time to give me a quote for the job and sent me a professional quote the next day, when I called to discuss the quote and time frame to complete the work he was concise and answered all my questions without hesitation.”
R&S Contracting
“Wes made a terrible situation so much easier to cope with by being extremely patient and compassionate and very knowledgeable”
All-Pro Waterproofing & Excavating Inc
“A huge thanks to the gentleman on the phone for being genuine, straight up, and taking the time to teach this new homeowner the basics of foundation care.”
Lakeside Home Improvements
“Simon Grant (owner) has performed numerous upgrades and maintenance items over the years including installing new foundation supports, a new roof, sidewalks, porch handrails, replacing rotting wood, etc.”
Dun' For You Contracting
“Don has completed work in our home and we were very pleased with the quality of work he does.”
Why these companies made our list
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