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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

    - Top results - High Speed - Warranty Company that gives you maximum results out of ordinary costs. With 15 years of experience in the painting market, we know it all and will be happy to discuss your project in detail.

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  • General contractor in Thornhill, Ontario

    We are a dedicated team for general contracting over 15 years of experience in drywall painting plumbing handyman services furniture and playground assembly, we always get the job done precisely how you want it we take care of our customers like we take care of our family

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  • General contractor in Thornhill, Ontario

    At UPR (Underground Plumbing Repair), we don’t just fix pipes — we protect homes. For over 20 years, we’ve been the trusted name across Toronto and the GTA for expert waterproofing, drain repair, plumbing, and foundation solutions. Whether it’s a flooded basement, a cracked foundation, or a stubborn clog, we show up fast, diagnose with precision, and deliver lasting solutions — not patch jobs. What sets us apart? We go deep — with experience, integrity, and unmatched dedication. Our licensed, insured team treats every home like it’s our own. We work clean, explain everything clearly, and never cut corners. From trenchless sewer replacements to backwater valves, sump pumps, and full basement waterproofing — we do it all, and we do it right the first time. No guesswork. No surprises. Just honest work, done with pride. Need peace of mind? UPR is ready 24/7 — because real protection starts underground.

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  • General contractor in Thornhill, Ontario

    MyCondoHelper is a trusted Toronto-based handyman service specializing in maintenance, repairs, and renovations for condominium owners, property managers, and condo boards. With a deep understanding of the unique challenges and regulations of high-rise living, we provide prompt, professional, and fully insured services tailored to the condominium environment. From minor fixes to full unit refreshes, our skilled technicians handle everything from drywall repair, painting, tiling, and flooring to fixture installation, caulking, and custom carpentry. We also offer common area maintenance, suite turnovers, and emergency response services — all with a commitment to cleanliness, discretion, and respect for condo bylaws and quiet hours. Whether you're a busy homeowner needing reliable help or a property manager seeking a dependable partner, MyCondoHelper delivers condo-friendly solutions that keep buildings running smoothly and residents happy.

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  • General contractor in Thornhill, Ontario

    Hi, I will do the job quickly and efficiently

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  • General contractor in Thornhill, Ontario

    At Quality Reno and Home Services, we’re committed to bringing comfort, style, and craftsmanship to every corner of your home. Based in the Greater Toronto Area, we specialize in top-quality bathroom renovations, flooring, tiling, interior & exterior painting, fence work, pressure washing & sealing, and seasonal snow cleaning services.

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  • General contractor in Thornhill, Ontario

    Standing seam & custom metal roofing. Built to last — serving Toronto, GTA, and Ontario. Craftsmanship & style you can trust.

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  • General contractor in Thornhill, Ontario

    At Unosol, we’re more than just handymen – we’re your friendly neighbourhood problem-solvers for everything home. With years of hands-on experience, we bring skill, precision, and reliability to every project, big or small. Our specialty is painting, drywall repair, vinyl flooring, door installation, room partitioning, and appliance installation – done right the first time. What sets us apart is our commitment to detail, transparent communication, and dependable service you can trust. We know that when something breaks, needs a refresh, or a room needs a new look, you don’t just want it fixed – you want it done quickly, cleanly, and stress-free. That’s why our approach is simple: show up on time, work with care, and leave your home better than we found it. With over 100 successful projects behind us, we’ve built a reputation for being approachable, trustworthy, and versatile. Whether it’s giving walls a fresh coat of paint, upgrading your floors, or setting up new appliances, we’re here to make your home work better and look better. At Unosol, we stand by our tagline: “Your Friendly Neighbourhood Handyman.” When you call us, you’re not just hiring a service – you’re choosing a partner who treats your home like their own.

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  • General contractor in Thornhill, Ontario

    I’m a professional painter with many years of experience, including working in the U.S. I specialize in residential and commercial painting, drywall repairs, and post-construction cleaning. Over the years, I’ve also learned a variety of other skills in the construction field. I have a portfolio on Instagram showcasing several of my completed projects, highlighting the quality of my work and my clients’ satisfaction. I’m committed to delivering excellent results, always working with care, punctuality, and attention to detail. My motto is: “Never lose a job!” — I always go the extra mile to make sure the client is happy. If you’re looking for a reliable, skilled, and experienced professional, you can count on me!

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  • General contractor in Thornhill, Ontario

    YTS HEATING AND COOLING GTA HVAC experts with over 30 years experience service and repairing HVAC equipment, Furnaces, Hot Water Heats,Tankless water heater, Boilers, Rads, Fan coils, Ductless Split System, AC Unit and heat pumps. We offer warranty on parts installed by our technicians. Your Comfort Is Our Priority.

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  • General contractor in Thornhill, Ontario

    Hi, I’m George from Frog Leap Painting. Thirty-five-plus years in this business—means I’ve seen every shortcut, every lazy job, every “it’ll look fine” lie. And I still don’t buy it. What matters? Prep. We don’t slap paint on walls—we sand, we patch, we tape like it’s surgery. Every seam, every corner, every damn nail hole gets treated like it’s the only thing that matters. Then we finish clean—dead-flat ceilings, silky trim, colors that don’t fight the light. It takes longer. Costs more. But you won’t see a brush mark, won’t feel a bump, won’t ever think “why didn’t I do this sooner?” I’ve got a large crew—guys who know what “perfect” actually means. We don’t rush. We don’t fake. If you want it done once, done right— check out my web site on Google. We are fully insured and have perfect standing with Safty Wsib. We take care of your home and investment.

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  • General contractor in Thornhill, Ontario

    Knowledgeable and experienced.

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  • General contractor in Thornhill, Ontario

    Need Home Renovation or Handyman Services TwoCowboyReno is ready to help! Whether it's a full renovation or small home repairs, we deliver quality work, fair prices, and reliable service. Kitchen & Bathroom Remodeling Flooring Installation (Vinyl, Laminate, Hardwood

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  • General contractor in Thornhill, Ontario

    Delta Waterproofing Ltd.our mission is to be the most reputable in the waterproofing industry. Our foremost objective is to provide our customers with prompt, courteous customer service and the highest quality workmanship at a reasonable price. We bring honesty, integrity to every job and we have the highest regard for safety. Our services include: Interior / Exterior Repairs, Membrane Application, Window Wells & Down Pipes, Weepers & Parging, Drainage Systems. All jobs have full contract & warranty. We have over 25 years of waterproofing experience in the GTA. Call today for your free quote!

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  • General contractor in Thornhill, Ontario

    Reliance Doorsmith is your trusted choice in the Greater Toronto Area (GTA) for top-quality commercial and residential door services and wood refinishing. We specialize in new door installations for both residential and commercial spaces, elevating aesthetics and security. Our wood refinishing experts breathe new life into your wooden surfaces. With years of experience and a commitment to quality, we provide custom solutions to meet your unique needs. Choose Reliance Doorsmith for excellence in GTA door and wood services.

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  • General contractor in Thornhill, Ontario

    I have working in various industries on and off for the past few years well I was studying at University. Majority of my work consists of interior and exterior painting, trim work and drywall repair. My service areas are primarily Mississauga & Toronto but I am open to working elsewhere. At MCM Works & Contracting we take pride in our work and believe that good work shouldn't break the bank.

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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 835 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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