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General contractors in Oshawa

Looking for a general contractor in Oshawa? Post your project on HomeStars and get matched with Oshawa 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 Oshawa

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  • Professional Plumbing Service is a Ajax based HVAC contractor, Electrician, Plumber, Bathroom Renovation Company, Appliance repair specialist, Excavation Specialist, Concrete Specialist, Fireplace and BBQ Specialist, Handyman, Landscaping Company, General contractor & Paving Contractor company. Our goal is to provide quality service and excellent workmanship to our customers. If you need help with install or replace water supply and drainage, unclog drain and sewage pipes, install or repair faucets, repair toilet or toilet flush, install or repair bathroom fixtures, stop leakage, build or renovate well, install or replace water treatment station, install or replace septic tank or grease trap, clean or maintain septic tank or grease trap, install, replace or repair sewer main, install or replace drainage system, install or repair water heaters & install or replace garbage disposal, message us so we can assist you and arrange a quote.

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  • General contractor in Oshawa

    Your Handy Neighbour – Durham Region & GTA I’m a reliable, no-nonsense handyman serving homeowners and small businesses across Durham Region and the GTA. I show up on time, do it right, and leave your place cleaner than I found it. Services include: Interior & exterior painting • drywall repair • patching holes • carpentry • minor plumbing & electrical • landscaping & yard cleanup • gutter cleaning • roof tune-ups & repairs • demolition • stone & tile work (granite/marble) flooring, hanging picture and t.v brackets I focus on honest pricing, clear communication, and solid workmanship. No shortcuts, no upselling, just quality work you’ll be happy to recommend. Why choose me? ✔ Dependable & detail-oriented ✔ Fair, straightforward pricing ✔ Local – committed to my community ✔ Residential & small commercial jobs welcome Reach out for a free quote or to discuss your projets

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  • General contractor in Oshawa

    Specialized in carpentry, meticulously detailed. Zero corners cut, getting jobs done the right way.

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  • General contractor in Oshawa

    With over 6 years of hands-on experience, I specialize in popcorn ceiling removal, all types of drywall repairs, and top-quality paint jobs that transform spaces. Whether it’s patching, painting, or perfecting your walls, I bring precision, reliability, and a clean finish to every project. I also offer a range of handyman services to keep your home in top shape — no job too small, no detail overlooked.

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  • I have experience for 13 years in renovation and restoration, I have always worked hard and made sure the job gets done on time. I love my job that’s the reason I like to grow. And I did many job in all around GTA and Toronto

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  • General contractor in Oshawa

    Aspiring Mechanical Technicians - Millwright student looking to expand my skills and knowledge to clients who need help with their projects. I have worked in the industrial steel and aluminum coil industry for a couple years before heading back to school. Currently conducting preventive maintenance for a company and completing other projects. Experience with stick welding, wood work, metal work, and much more.

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  • General contractor in Oshawa

    Welcome to Ultimate Solutions Paint your trusted partner for premium painting services across GTA. For more than a decade, we’ve been transforming residential, commercial, and industrial spaces with unmatched quality and care. Our team of skilled painters combines creativity with attention to detail, ensuring flawless finishes that last. Whether it’s brightening up a cozy living room, giving your office a professional new look, or refreshing the exterior of a large property, we tailor our services to your unique needs. With a commitment to using top-grade materials, modern techniques, and a customer-first approach, Ultimate Solutions Paint is here to bring your vision to life with color, precision, and lasting beauty. At Ultimate Solutions Paint, we bring life to your walls with precision, passion, and a flawless finish — no stress, no delays, just pure perfection. We use premium paints and expert techniques to deliver a smooth, lasting finish every time.

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  • General contractor in Oshawa

    We build custom homes, decks, additions and basement framing. We serve the GTA, Kawartha Lakes and other surrounding areas.

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  • General contractor in Oshawa

    My name is Steven and I have been a plumber for almost 9 years. I specialize in residential plumbing install, service and repair with a background in framing, drywall, mudding and finishing, tile work, painting, carpentry, vanity install and service, basic HVAC and basic electrical.

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  • General contractor in Oshawa

    At HANDIROOT, we’re a proud family-owned business built on trust, care, and hard work. We treat every home like our own — with honesty, attention to detail, and a passion for quality. Our services include: 🧼 Home Cleaning (deep & move-in/out) 💦 Pressure Washing (driveways, decks, patios) 🪟 Window Cleaning (interior & exterior) Serving Ajax, Toronto & beyond — with fair pricing, friendly service, and guaranteed satisfaction. ✅ Licensed & insured ✅ Local & reliable ✅ Eco-friendly options

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  • General contractor in Oshawa

    We’re a minority owned family electrical company trying to make change in the industry. Serving the entire GTA, we're your one-stop electrical contractor—specializing in panel upgrades, EV chargers, fire alarms, and large-scale installations for homeowners, businesses, and beyond. Homeowners trust our family-run team to bring comfort, efficiency, and safety under one roof-modernizing your wiring, lighting, and power systems so you can enjoy a smart, secure home, our family-run, fully licensed electricians deliver everything code-compliant, on time, and on budget, so you gain lasting peace of mind and lower energy bills.

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  • General contractor in Oshawa

    Being in construction and contracting over 20 years with a large spectrum of knowledge and skills in different trades Extensive experience in the construction and contracting industry provides a strong foundation for project success. Two decades of hands-on involvement have cultivated a deep understanding of various building trades. This diverse skill set allows for effective problem-solving and efficient project management. A broad knowledge base ensures adaptability to diverse project requirements and challenges. Commitment to quality and safety remains paramount throughout every phase of the construction process.

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  • Simply Contracting is a General Contracting company, specializing in interior and exterior home renovations. We serve Toronto and the Greater Toronto Area. When you put your trust in Simply Contracting’s expertise and knowledge, your home renovation dreams become reality. We provide you with free detailed estimates every time – that includes a thorough review of your space, taking measurements and asking the right questions to ensure that we have a full grasp of what you are looking for. Bringing what’s in your mind to paper and then to your home with a turn-key service starting from permits/plans to design to a completed renovated dream space. At Simply Contracting, we understand how stressful and exhausting a renovation process can be, but we are here to ensure you aren’t “living through a renovation” but instead “dreaming up a renovation”. We work with our clients every step of the way and put our all into ensuring the stress and worry is off your shoulders. We guarantee that our clients can always get a hold of us, and we encourage communication throughout the renovation process. Simply Contracting carries an extensive team of licensed and experienced trades, who are always reliable and up to any task. We are firm believers in completing jobs on budget and on time. Please feel free to browse our site, where you will find a list of our services, photos of our work, and our contact us page for a free estimate. We look forward to working together and making your dreams come to life.

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  • BAILEY HARDSCAPE is dedicated to bring beautiful landscapes to neighborhoods near you

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  • HVAC Heating cooling Gas line Installation and repair Air condition - Furnaces- Boilers-Fireplaces - Swimming pool heater-Tank-less Water heater - Remove the Red Tags - Outdoor fire pits - Restaurant appliances - Underground Gas Lines -Gas range - Gas Stove- BBQ - Gas Dryer- New Gas Lines - Dehumidityfire -Humidityfire - Thermostat-HRV-

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4.9

Top rated general contractors

Our general contractors in Oshawa, are rated 4.9 out of 5 based on 328 reviews from homeowners like you.

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What types of services are offered by local general contractors in Oshawa?

Whether it's a home renovation or a commercial project, a local general contractor in Oshawa 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 Oshawa? Make your search easier with HomeStars. Just post your job, provide a few details, and choose from available general contractors in Oshawa. It’s quick, simple, and hassle-free.

What is the average cost of hiring a general contractor in Oshawa?

On average, general contractors in Oshawa 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. Oshawa 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 Oshawa on HomeStars

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

How to hire Oshawa 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 Oshawa.

  3. Connect with a general contractor in Oshawa 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 Oshawa with confidence. All building contractors in Oshawa 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 Oshawa general contractor before hiring?

Before you hire, you might want to ask general contractors in Oshawa 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 Oshawa 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 Oshawa is important for understanding regional building codes and construction practices.

Do you handle permits, inspections, and subcontractor coordination?

The right Oshawa 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 Oshawa 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 Oshawa 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 Oshawa 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 Oshawa

How long does a typical renovation or construction project in Oshawa take?

Project timelines depend on size and complexity. A Oshawa 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 Oshawa 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 Oshawa handle cleanup after the project?

Most building contractors in Oshawa 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 Oshawa 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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