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General contractors in Thornhill, Ontario

Looking for a general contractor in Thornhill, Ontario? Post your project on HomeStars and get matched with Thornhill, Ontario building contractors in your area. Browse profiles, read genuine customer reviews, and discuss your project details with interested pros. All before you make your final choice.

Some of our top rated general contractors in Thornhill, Ontario

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  • General contractor in Thornhill, Ontario

    My name is Anatoliy, the owner and lead handyman at Build Master Canada. With years of hands-on experience in home repairs, renovations, and custom projects, I take pride in delivering reliable, high-quality workmanship for homeowners who want the job done right the first time. At Build Master Canada, I offer a wide range of handyman services, including: 🛠️ General home repairs 🧰 Carpentry and custom builds 🚪 Door and window installation/repair 🧱 Drywall installation and patching 🪛 Furniture assembly 🔧 Plumbing and electrical minor fixes 🧹 Home maintenance and improvements …and much more! I believe in strong communication, fair pricing, and treating every project—big or small—with the same level of care. My goal is to make your home safer, more functional, and more beautiful. If you're looking for a dependable handyman who stands behind their work, I’d be happy to help. Feel free to reach out for a quote or to discuss your next project! Thank you for considering Build Master Canada — where quality and craftsmanship come first.

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  • General contractor in Thornhill, Ontario

    Top Grade Roofing & Siding is a trusted name in exterior home improvement across Toronto, known for delivering reliable, high-quality craftsmanship on every project. Specializing in both roofing and siding, we bring durable protection and curb appeal to homes and businesses throughout the GTA. Whether you need a full roof replacement, siding upgrade, or emergency repairs, our experienced team is committed to long-lasting results and customer satisfaction. At Top Grade, we stand behind our name—because your property deserves nothing less.

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  • General contractor in Thornhill, Ontario

    Quality plumbing services you can count on 🛠️ serving residential and commercial clients across the GTA📍 Contact today for a free quote

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  • Welcome to Open Concept The company specializes in structural engineering and renovations. OCEC LTD was founded to be able to help others live their lives without unwanted obstructions. It may be a wall, a duct hump or post in the basement that is in the way of your pool table or a home gym or simply in the middle of a room. Whatever the case may be it’s not IM'possible. Our innovative approach to basement post removal has been designed and approved by qualified engineers with many satisfied customers. The method does not require any welding or major beam replacements. We have also made it possible through our ingenuity to be able to sink beams into the joists to have a perfectly flat ceiling finish on both the first and/or second floors of your home. We are an insured business from both and engineering and construction stand point. Liability Insurance on Construction and Engineering Services. We're social here: https://www.instagram.com/ocecltd/ https://www.facebook.com/ocecltd https://twitter.com/OpenConceptEng1

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  • General contractor in Thornhill, Ontario

    General construction

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  • General contractor in Thornhill, Ontario

    Water System installer and more

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  • General contractor in Thornhill, Ontario

    We are a family-owned exterior renovation company specializing in roofing (shingle, cedar, metal, flat) but we also have experience with gutters, siding, porches, decks, and fences.

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  • General contractor in Thornhill, Ontario

    With over 40 years of combined experience, we have been able to build a team of passionate and hardworking individuals who are dedicated and committed to their work. We strive to provide our customers with amazing renovations that will exceed their expectations.

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  • General contractor in Thornhill, Ontario

    Bay Design Build is a Toronto-based company specializing in custom Build and full-home renovations. We create stylish, functional living spaces using locally sourced materials and expert craftsmanship. From kitchens and bathrooms to complete home transformations, our team of interior design, architecture, and construction professionals works closely with clients to bring their vision to life. Our Services: General Contracting Bathroom Renovations Kitchen Renovations Basement Renovations Home Addition Condo Renovations

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  • General contractor in Thornhill, Ontario

    IK Construction Inc. is a trusted General Contractor serving the Greater Toronto Area, delivering high‑quality residential, commercial, and municipal construction services with a strong focus on compliance, craftsmanship, and client satisfaction. With extensive experience across renovations, accessibility upgrades, tenant improvements, and full‑scale project management, we provide reliable, end‑to‑end solutions tailored to each client’s needs. Our team is committed to safety, transparency, and premium workmanship—ensuring every project is completed on time, on budget, and to the highest professional standard. Services We Offer General Contracting & Project Management Full residential and commercial renovations Interior and exterior remodeling Project planning, scheduling, and site supervision Permit coordination and municipal compliance Vinyl, laminate, hardwood, engineered wood Tile installation (floors, walls, backsplashes) Baseboards, trims, and finish carpentry Full remodels and upgrades Curbless / accessible shower systems Custom cabinetry installation Plumbing fixture installation Interior and exterior painting Drywall installation, taping, and repairs Texture removal and refinishing

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  • General contractor in Thornhill, Ontario

    I believe if it’s not good enough for my house its not good enough for yours. All jobs done with care from start to finish.

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  • General contractor in Thornhill, Ontario

    We are your one stop company to handle all your painting and demolition. We treat your home or business like its ours.

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  • General contractor in Thornhill, Ontario

    Our company “JJ home pros" is based in Aurora and serving all the GTA. We are dedicated to serving our clients with quality and integrity. The team manager Javad Jahangiri is a certified home inspector with all certificates and qualifications as well as an insured general contractor with civil engineering technology background. Javad also is certified in “Radon Gas” safety for homes and can provide mitigation methods. Our group has years of experience in all types of home inspections and improvements. Certificates and Educations; Civil Engineering Technology (3 years, George Brown College). Seneca College, Home Inspection Certificate. National Exam Home Inspection Certificate by Canadian Home & Property Inspectors Association. Radon gas safety. Construction Safety. Whmis, Hazardous Materials.

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  • General contractor in Thornhill, Ontario

    MACAULAY CAULKING IS FULLY QUALIFIED TO PERFORM ANY TYPE OF RESIDENTIAL, COMMERCIAL AND INDUSTRIAL SERVICE WITH HIGH END QUALITY WORK. WE TAKE PRIDE IN OUR WORK! You can trust our team of devoted professionals to provide you with excellent service in a timely fashion. Macaulay caulking can make your home look more aesthetic, in addition to preventing leaks, seepage and pest control, making it more comfortable and energy efficiency. Macaulay caulking is fully insured, qualified, and licensed to perform any type of low-rise and high-rise caulking project. “At Macaulay Caulking, we are dedicated to using products of highest quality that’s not only designed to prevent leaks and seepage but also safe to your health and the environment”.

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  • General contractor in Thornhill, Ontario

    installation of laminate floors, LVT, wood

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  • General contractor in Thornhill, Ontario

    I have enough experience in the entire construction branch and I like to be responsible and organized in my work.

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4.9

Top rated general contractors

Our general contractors in Thornhill, Ontario, are rated 4.9 out of 5 based on 866 reviews from homeowners like you.

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What types of services are offered by local general contractors in Thornhill, Ontario?

Whether it's a home renovation or a commercial project, a local general contractor in Thornhill, Ontario can help streamline the process. They’ll handle everything from project planning to construction, making sure the work is done right, on time, and within budget.

Popular general contractor services include:

  • Installing or replacing a roof
  • Repairing or maintaining a roof or gutter
  • Installing or renovating bathroom
  • Paving installation

Wondering how to find a general contractor in Thornhill, Ontario? Make your search easier with HomeStars. Just post your job, provide a few details, and choose from available general contractors in Thornhill, Ontario. It’s quick, simple, and hassle-free.

What is the average cost of hiring a general contractor in Thornhill, Ontario?

On average, general contractors in Thornhill, Ontario typically charge an average hourly rate of $50 to $150. In some cases, they might charge per project, such as for smaller renovations or larger construction jobs, with costs ranging from $5,000 to $200,000 or more. Thornhill, Ontario general contractors may also charge 10% to 20% of the total project cost, depending on the scope of work.

For common general contractor jobs, expect to pay:

Find a general contractor in Thornhill, Ontario on HomeStars

Finding the right general contractor in Thornhill, Ontario is all about matching your project needs with the right experience and budget. HomeStars makes it easy to connect with Thornhill, Ontario building contractors who have a proven track record, with customers leaving reviews and ratings based on their past work.

How to hire Thornhill, Ontario general contractors on HomeStars:

  1. Start by posting your project. Add details about the work and include pictures for accurate quotes.

  2. Read through and compare profiles of general contractors based in Thornhill, Ontario.

  3. Connect with a general contractor in Thornhill, Ontario to discuss your project, request a quote and ask any questions.

  4. Hire the right pro to get the job done and leave a review based on your experience.

Whether it’s a small renovation or a major construction project, HomeStars lets you easily review and select general contractors in Thornhill, Ontario with confidence. All building contractors in Thornhill, Ontario who register on our platform are verified through ID checks, so you can hire the right pro with peace of mind.

What to ask a Thornhill, Ontario general contractor before hiring?

Before you hire, you might want to ask general contractors in Thornhill, Ontario the following questions to get a better understanding if they’ll be a good fit for your project.

What types of projects do you usually handle?

A general contractor in Thornhill, Ontario should be able to outline the types of projects they specialize in, such as home renovations, new builds, or commercial construction. Local experience as a contractor in Thornhill, Ontario is important for understanding regional building codes and construction practices.

Do you handle permits, inspections, and subcontractor coordination?

The right Thornhill, Ontario general contractor will manage permits, inspections, and coordinate subcontractors, ensuring your project meets legal and safety requirements without unnecessary delays.

Do you carry general liability insurance and WCB coverage?

All general contractors in Thornhill, Ontario should carry general liability insurance and be registered with the provincial Workers’ Compensation Board to protect both you and their team in case of accidents or property damage.

How do you handle disputes or issues during construction?

A general contractor in Thornhill, Ontario should have a clear process for managing disputes, unexpected delays, or mistakes. They should be able to explain how they communicate issues, propose solutions, and involve you in decision-making when adjustments are needed.

Who will manage the project on-site, and how will communication work?

Clarify who oversees daily operations and how you’ll stay updated throughout the project. The Thornhill, Ontario building contractor should assign a dedicated foreperson or project manager to coordinate all aspects of the work, including supervising subcontractors and scheduling inspections.

FAQ: Common questions about general contractors in Thornhill, Ontario

How long does a typical renovation or construction project in Thornhill, Ontario take?

Project timelines depend on size and complexity. A Thornhill, Ontario general contractor will provide a realistic schedule with start and completion dates and will update you on milestones throughout the project.

When should I hire a general contractor?

Hiring a Thornhill, Ontario general contractor early in the planning phase is ideal, especially for large renovations or construction projects. They can help with budgeting, timelines, permits, and coordination from the start.

Do general contractors in Thornhill, Ontario handle cleanup after the project?

Most building contractors in Thornhill, Ontario include cleanup as part of their services, ensuring debris is removed, the site is safe, and your property is left in good condition once work is complete.

Do general contractors offer design advice or planning support?

Some general contractors in Thornhill, Ontario provide design input, helping you optimize space, layout, and materials. While they may not replace an architect, their practical experience can improve efficiency and cost-effectiveness.

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