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Some of our top rated general contractors in Thornhill, Ontario

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1001300531 ONTARIO LTD
Rating: 5 out of 5
General contractor in Thornhill, Ontario
We are experienced professional company dealing with construction and renovation in residential and commercial units. Company with proven expertise in quality solutions!
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Latest review:
Demolition work- 29 Jun 2026
They did the job quickly and they were very proffessional.
G1000 Home Substructure Contractor
Rating: 5 out of 5
General contractor in Thornhill, Ontario
For over 25 years, G1000 has been the trusted concrete and epoxy and waterproofing and underpinning expert across the GTA. We understand that our work is the foundation of your confidence. That’s why we provide durable, maintenance-reducing performance backed by a satisfaction guarantee and unparalleled customer care. Our Partnership Approach What truly sets us apart is not just our engineering-level expertise, but our commitment to a smooth, transparent process. We treat your structure like our own, ensuring results that last for decades, not seasons. Every project includes: Transparency First: Detailed assessments and clear communication from consultation to completion. Precision Guarantee: Work guided by discipline and craftsmanship, minimizing risk and maximizing longevity. Dependable Service: We provide industrial-grade results with the accountability and personalized care of a small, dedicated team. Specialized Services Built on Trust: We partner with you to protect and enhance your asset's long-term value: Below Grade: Expert Waterproofing, Underpinning, and Structural Concrete Installation. Above Grade: High-Performance Epoxy Coatings, for concrete floor and Concrete Polishing, and Flawless Surface Preparation. Our G1000 Satisfaction Promise: We stand firmly behind the quality and integrity of every job. When you choose G1000, you are getting a dependable partner who guarantees top-tier workmanship and professionalism. We don't finish until you are completely satisfied. Ready to start your project with a trustworthy, guaranteed partner? Contact G1000 today for a detailed consultation and experience the confidence of expert service.
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Latest review:
We hired G1000 to underpin the crawl space of our home. This is a very complex project so we took our time to find the right company to do the job and he was highly recommended. We are so happy we chose G1000. It was an amazing experience and would highly recommend G1000 to anyone doing underpinning or any concrete work. As an expert in project management, with 25+years of experience, I can say that this project was well planned and efficiently executed. Gemils communication skills are fantastic. He ensured we are comfortable with the approach before proceeding and addresses any questions or concerns very quickly. He managed our expectations and delivered as promised. He always made the time to speak to us. This was our first project that required a city permit and many inspections, so we had a lot of questions. After every conversation, we felt reassured with clear and understandable next steps. Each inspection was passed with flying colours the city inspectors were so impressed with the work being done. His team is wonderful professional, on time, works hard, and cleans up every day. Our neighbours were wowd on the efficiency of the project - they completed in 4 weeks! Gemil is truly the example of great client management and professionalism.
APRICOT Painting & Renovation
Rating: 5 out of 5
General contractor in Thornhill, Ontario
Apricot Painting & Renovation provides commercial & residential painting/spraying. Interior Painting: Ceiling, Walls, Doors & door casings, Window trims, Baseboards/Trims, Closets, Stairs (all parts of stairs-Handle, Railings, Risers etc), Kitchen cabinets. ***Removing popcorn, stucco or textured ceiling; Skimming minimum 2 coats, Sanding, Priming and painting*** Exterior Painting: Bricks, stones and concrete, Entrance door, Garage door, Porch, Stairs, Decks, Soffits, Fascia, Gutter, Window trims (wooden, aluminum, vinyl), Posts, Chimney, Roof edges ***Power washing*** We also provide following services: demolition, framing, drywalling, flooring.
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Latest review:
Consistent, responsible, personable, professional. Hovig and Hiag are a first phone call for home projects. We are grateful for their responsiveness
GDO CONSTRUCTION INC
Rating: 5 out of 5
General contractor in Thornhill, Ontario
GDO CONSTRUCTION INC. is an experienced roofing company located in the city of Maple, Ontario and serving the entire Toronto & GTA area. With more than 8 years experience in complete roofing services, we offer services that include, cedar shake, shingle roofing, flat roofing, eavestroughs, downspouts, attic ventilation, sky lights, soffit , fascia and roof repair services. We also offer emergency roof repairs in the off season. We also provide emergency roof repairs during the off-season and at any time needed. Contact us through HomeStars to request a free estimate and discuss your roofing project.
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Latest review:
Repair or maintain roof or gutter- 13 Apr 2026
Oswaldo did a great job, he was punctual and through with the job. He did not try to sell anything like other contractors, and completed the job on time without increasing the price. He even followed up on his own after completing the job, just to make sure everything is fine. I will recommend him 100%
Jiangs Design & Reno Inc.
Rating: 5 out of 5
General contractor in Thornhill, Ontario
Best of the Best 2025
Best of Awards 2025
Jiang's Home Renovation Inc consists teams of true hardworking Asian employees. Our main values are customer satisfaction and best quality jobs. We specialize in: * Full House Renovation -> approximately 2 -3 months from basement to third floor * Full Basement renovation (From start to finish approximately 4 weeks) * Bathroom/Kitchen Refacing (New backsplash,vanity,cabinets, counter-tops installation) * Ceramic, Porcelain or any other types of Tile Installation - 100% flat/level result * Vinyl, Hardwood, Engineered wood or Laminate Flooring * Interior and Exterior paintings include rooms, ceilings, garage doors, windows,doors, deck and fences. * Crown Moulding, Drywall, concrete repairs, Gutter cleaning /windows/doors caulking or re-caulking * Lights/furniture dissemble and re-assemble ***Golden Rule*** -100% customer satisfaction. - send us a picture or two of the design you want, we will communicate, help design and work with your budgets in order to achieve expected maximum result. We have expanded and own a crew of professional team doing exterior jobs: Backyard landscaping, New fencing, Decking, Interlocking at a very satisfactory price. Referrals available upon request. Any small or big jobs, we take them seriously, give us a chance to show you that we are worth hiring.
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Latest review:
House renovation- 30 Mar 2025
This was the first renovation that my wife and I had undertaken, and the Jiang's Design & Reno team did an excellent job! Over a period of 4 weeks, the team completed a scope of: resurfacing of approx. 800sqft of popcorn ceiling, replacement of all ceiling light fixtures, full gut and renovation of 2 bathrooms, and remodel of front entryway in our condo. We actually had to move into the unit around 1.5 weeks into the renovation (not ideal) but Evan and his team were very accommodating and worked with us to hand over certain portions of our unit while work continued. Items supplied/arranged by me: light fixtures, bathroom wall tiles, elevator bookings Everything else was handled by Evan and his team. Evan met with me for one day to go shopping for everything not mentioned above i.e. floor tile, vanities, plumbing fixtures, paint etc. Custom cabinets also sourced through Evan and team. Overall, we are very pleased with the results. Thanks again to Evan, Daniel and Ryan!!
Dotch Construction & Renovation
Rating: 5 out of 5
General contractor in Thornhill, Ontario
Dotch Construction & Renovation Inc. has been building and renovating homes across Vaughan and the GTA since 1994. Over 30 years, 1,500+ completed projects — from basement apartments and legal suites to full home renovations and additions. We’re a hands-on general contractor serving Toronto and the GTA. Yury leads every project personally — no middlemen, no surprises, no cutting corners. Clients come back to us again and again and send their neighbours and friends. We handle everything: new house construction, home additions, full house renovations, basement finishing, condo renovations, and commercial & industrial renovation. Design consultation, permits, demolition, framing, electrical, plumbing — one contractor, start to finish. 5-star rated | HCRA Licensed #B61271 | Serving Vaughan, Richmond Hill, Woodbridge, Maple, Thornhill, Mississauga, Brampton, Markham, Oakville, Newmarket and surrounding areas within 80 km of Toronto.
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Latest review:
It took us over a year to decide which company and contractor to select and we were thrilled with the work that Dotch Construction and Renovation completed in our home. With Yury’s leadership and his team of knowledgeable, experienced, and skilled professionals, Phase I of our renovation was a success! The project involved removal of the popcorn ceiling, replacing the old with the new, and that means new window and door trims, new casing, new crown moulding, new baseboards, priming, painting, new lighting, replacing parquet with engineered hickory hardwood floors, gutting out two out-dated washrooms and modernizing it with new vanities, toilets, a walk-in shower with glass doors, a niche and a half wall that were all built from scratch. New shower and floor tiles were installed, plumbing for the sink was moved from floor to wall, and plumbing in the shower area involved work to suit our modern style. Yury’s team helped with the removal and reinstallation of closets, mirrors, blinds, curtain rods, etc. for no extra charge. The high ceiling in the foyer area was converted to a study room for our daughter (an extension to her bedroom) and this was a huge construction project in itself. The room looks amazing! We also upgraded our stairwell. Old wooden pickets were replaced with iron spindles. New stairs and new railings were installed and stained with our color selection. We were so impressed and pleased with the work from Dotch Construction, that several of the items mentioned above were requested after the contract was signed and the project was in progress. Yury was able to plan and manage all our new requests and still stay on schedule. If you are looking for someone enthusiastic, honest, organized, and capable of turning your vision into reality, I highly recommend Dotch Construction and Renovation. Rest assured, your project is in the most capable hands. - Lourdes
Canaan Landscaping
Rating: 5 out of 5
General contractor in Thornhill, Ontario
Best of Awards 2020
We are an Interlocking and Landscaping Service provider based in Toronto, ON. We provide a complete landscaping service such as: *** Landscape design service Interlocking driveway Backyard & Patios Walkway & Pathway Step,Porches & Entrances Pillars & Seat wall Retaining Wall Construction Natural Stone & Amour Stone Wash & Seal Service Deck & Fence Mulch, Sodding & Seeding *** Canaan Landscaping takes pride in offering quality support after the landscaping project is complete and increase the aesthetic beauty of the outdoor environment. We stand behind all of our work, and ensure customer’s satisfaction.
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Latest review:
Excellent workmanship and high quality customer service. Very professional and hard working team. Excellent communication with homeowners keeping up to date about any changes. I have never encountered such professional and excellent service by Samuel and his team, from design to precise stone cutting. Our neighbours and friends gave us thumbs up for looks and professional done by Canaan Landscaping. Samuel and his crew did a fantastic job a week ago in our front and backyard interlocking. The job was finished within 6 days as anticipated. The pricing was reasonable. I recommend Canaan Landscaping. Thank you Sam and your crew for an amazing job well done!
Grand Merit Construction
Rating: 5 out of 5
General contractor in Thornhill, Ontario
Best of Awards 2026
Best of Newly Listed 2023
Grand Merit Construction Inc. specializes in bathroom and kitchen renovations while offering comprehensive home renovation and repair services across the Greater Toronto Area. Fully licensed and insured, we deliver exceptional workmanship, stay on budget, and meet deadlines. Our client-focused approach ensures clear communication and involvement at every stage. We are dedicated to bringing your vision to life with high-quality results and complete satisfaction.
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Latest review:
Wall or floor tiling- 1 May 2026
Very approachable and took the time to answer all my questions without rushing, which I truly appreciated. The work was done professionally, the space was left clean, and the whole experience was smooth from start to finish. Easy to work with and highly recommend!
Groundworks Toronto
Rating: 4.9 out of 5
General contractor in Thornhill, Ontario
Best of the Best 2025
Best of Awards 2025
Groundworks is Canada’s trusted choice for foundation repair, basement waterproofing, and concrete lifting. Proudly serving Toronto, Calgary, and, Edmonton we provide reliable solutions to protect your most valuable investment—your home. With industry-leading products, nationally backed warranties, and fully trained technicians, we specialize in foundation repair, basement waterproofing, crawl space encapsulation, concrete repair, and radon mitigation. Our commitment to quality and personalized service ensures your home is safe, secure, and built to last. Call Groundworks today for your Free Inspection!
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Latest review:
I contacted Groundworks (formerly Clarke Basement Authority) as I was looking for a company to encapsulate my crawl space. Beginning with the initial meeting with Chris (quoted the job) to completion, the project ran smoothly. Lucio, Tai and Carter were the onsite crew that completed the work. They displayed a high level of organization, were professional, polite and had an excellent work ethic. I had several questions during the quote process and when the job was underway. The responses were always prompt and the time was taken to explain to me the project and how the work was being completed. Lucio, Tai and Carter kept the work area contained and were extremely tidy and respectful of my home. Throughout each day, Lucio provided me with regular updates that included pictures at various stages of the project. Lucio is an excellent project leader and that is reflected in the way the team worked together. I would recommend this team and Groundworks for crawl space work.
Rs glazing solution
Rating: 5 out of 5
General contractor in Thornhill, Ontario
At Rs Glazing Solution, we offer fast, budget-friendly, and high-quality solutions for all your glass, window, and door needs. Whether you're dealing with broken, foggy, or damaged glass, windows, or doors, simply send us the dimensions and a photo, and we’ll take care of the rest. We specialize in a variety of glass options, including tempered, laminated, and thermal double-pane glass units. Our services extend to custom glass showers, elegant glass railings, secure porch enclosures, and more. Experience reliable craftsmanship and customer-focused service with RZ Glazing Solution—your go-to experts for all things glass. Contact us today at 437-333-0204
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Latest review:
Install or replace glass window- 22 Jun 2026
very good service, completed the job at my convenience, would recommend this company for repairs.
Trident Plumbing & Mechanical
Rating: 5 out of 5
General contractor in Thornhill, Ontario
Best of Awards 2024
Trident Plumbing & Mechanical can help you with your install or replace water supply and drainage, install or renovate bathroom, build or renovate basement, repair toilet or toilet flush, install or repair bathroom fixtures, stop leakage, install or replace water treatment station, install, replace or repair sewer main, install or replace drainage system & bathtub or kitchen resurface or reface request in Concord and its surrounding cities. They’re at your disposal to listen and assist you in all your projects. Get in touch with Trident Plumbing & Mechanical now to discuss your needs and arrange a quote.
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Latest review:
Install or repair bathroom fixtures- 1 Jun 2026
Knowledgeable plumber, organised and easy to work with.
Homev Construction
Rating: 5 out of 5
General contractor in Thornhill, Ontario
At Homev Construction, we specialize in high-quality home renovations, structural projects, basement finishing, home extensions, and full project management across the GTA. From kitchen and bathroom remodels to wall removals and major structural work, we deliver reliable workmanship with a focus on transparency, timelines, and client satisfaction. With a strong network of trusted trades and years of hands-on experience, we ensure every project is completed safely, professionally, and with exceptional attention to detail. Whether you’re upgrading your current space or building a new extension, Homev Construction is committed to bringing your vision to life—on time and on budget.
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Latest review:
I hired Homev Construction for a full house renovation, and I couldn’t be happier with the results. After having a bad experience with contractors in the past, I was honestly very nervous to start another major renovation. But from the beginning, Farshad, the manager of the company, was extremely patient and professional. He took the time to answer all of my questions and address every concern I had throughout the process. The quality of work was excellent. Unlike many other general contractors who rely on handymen for everything, Homev Construction brought in senior, experienced tradespeople, and it really showed in the final finishes. The attention to detail was impressive, and the workmanship was clean, smooth, and high-end. The team was reliable, respectful, and truly cared about doing the job right. My home looks amazing, and I’m very grateful for their hard work. I would absolutely recommend Homev Construction to anyone looking for a trustworthy company with high-quality results.
Peak construction
Rating: 5 out of 5
General contractor in Thornhill, Ontario
At Peak Construction, we elevate your living spaces to new heights with our expertise in home renovation. Specializing in flooring and stairs, we bring a blend of craftsmanship, innovation, and passion to every project we undertake. Our commitment is to deliver superior quality, durability, and style, tailored to meet your unique vision and needs. Contact us today at 647-675-4341
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Latest review:
Install laminate floor- 16 Jul 2026
Rifat and his team are just great, they spend the time needed to get the job done they are resourceful, knowledgeable and professional I would recommend them to friends and family knowing they will be taken care of as we were
Altin CONSTRUCTION
Rating: 5 out of 5
General contractor in Thornhill, Ontario
Best of Newly Listed 2025
Workmanship is our passion .
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Latest review:
Yard design / landscaping- 7 Jul 2026
Great communication. Project done on time and mostly on cost. We liked working with these guys. Would recommend.
Lawson Contracting
Rating: 5 out of 5
General contractor in Thornhill, Ontario
Professional, fast,affordable
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Latest review:
Responded within 1min and arranged the job within 24hrs. Came in on time and installed efficiently. Completely satisfied overall.
Maksym Gorikhovskyi
Rating: 5 out of 5
General contractor in Thornhill, Ontario
MSV Construction Group — Transform Your Space! We offer: • Renovations: Modernize and refresh your home • Painting: Perfect walls and ceilings • Flooring: High-quality installation • Fences and Decks: Repairs, painting, and new builds • Demolition: Safe and professional service • Custom Work: Bring your unique ideas to life Our team boasts: • Skilled professionals • Attention to detail • Unmatched quality Let’s create something amazing together! 💪
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Latest review:
Small staining or painting project- 10 Jul 2026
Maksym did an excellent job restoring our deck. From the very beginning, he took the time to explain the entire process in detail and patiently answered all of our questions and concerns. He was meticulous with the pressure washing and sanding, ensuring everything was properly prepared before the finishing work. Throughout the project, he demonstrated a high level of professionalism and took great pride in the quality of his work. We also hired him from some painting jobs besides the deck. He completed those jobs efficiently without compromising on quality. He helped address an additional issue that came up, handling them patiently and charging a very reasonable price for the extra work, very reliable and decent man. We are pleased with the final results and would highly recommend Maksym. We've already discussed several future projects with him because he earned our trust on this project, and we wouldn't hesitate to hire him again.