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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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  • Hey there, I’m looking to get established so my rate is very flexible. Although I am new to business I am not new to home maintenance and improvement. I currently work as a carpenter in the film industry (IATSE 873), and have worked for many landscaping companies over the past 7 years. Shortlist me and I can almost guarantee the lowest price, only to be paid when the customer is satisfied. If your job requires materials, that will be the only upfront payment.

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  • General contractor in Oshawa

    We take pride in delivering high-quality renovations built on craftsmanship, reliability, and attention to detail. Every project we take on is handled with care, precision, and a commitment to exceeding client expectations. Our team brings experience, integrity, and professionalism to every job, ensuring results that are not only visually impressive but built to last. We believe that a successful renovation is one where the client feels confident, informed, and completely satisfied from start to finish. .About Your Project Scheduling We understand that time is one of the most important factors in any renovation project. That’s why we follow a structured and transparent scheduling process from day one. Each project is carefully planned, with clear timelines and milestones communicated to our clients. We coordinate every phase efficiently—from design and permits to construction and final inspection—to minimize delays and keep everything on track. Our goal is to deliver your project on time without compromising quality, while keeping you informed every step of the way.

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  • General contractor in Oshawa

    I have experience in patching drywall and painting and general home maintenance Installing appliances demolition and basic plumbing and electrical

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  • We are a Toronto roofing company providing professional residential roofing services for the Greater Toronto Area. We have more than 10 years of rich experience, the company has solved various roofing problems for thousands of customers based on the principle of customer first. We hold professional licenses issued by the federal government, WSIB, and insurance. Services include: Roof Renovation, Maintenance, and Leak Repair. We provide free estimation.

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  • General contractor in Oshawa

    Provides professional painting, drywall repair, and renovation services. We specialize in drywall patching, plaster work, interior painting, and smooth finishing. Clean, reliable, and high-quality workmanship you can trust.

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  • Boiler Works Mechanical is a trusted hydronic heating contractor with over 20 years of combined experience serving homeowners, builders, and property managers. We specialize in boilers, snowmelt driveway systems, radiant in-floor heating, and iFLOW hydronic furnaces, delivering reliable comfort and safety all year long. We proudly serve clients within 300 kilometers of Toronto, reaching Hamilton in the west, Kingston in the east, and Barrie in the north. Our licensed and experienced team provides expert solutions for both residential and commercial projects. Our expertise includes high-efficiency condensing boilers, custom hydronic system design, precise installations, repairs, and ongoing maintenance. We use proven methods, high-quality materials, and careful attention to detail to ensure peak performance and long-term value. Homeowners and builders choose Boiler Works Mechanical for our clear communication, dependable service, and commitment to doing the job right. We believe that professional installation and proper maintenance are essential for energy efficiency, safety, and lasting comfort.

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  • General contractor in Oshawa

    I've been doing moving and junk removal work for 2 years, serving the greater toronto area. I have the skills and tools to get a job done. I look forward to providing a good service for customers

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  • General contractor in Oshawa

    CA Roofing Inc. undertakes in general contracting services to the commercial and industrial sectors, as well as individual residential works. Our experienced roofing teams have established a solid reputation in the Greater Toronto Area. Our knowledgeable and well trained staff is fully responsible for your business and home. Ensuring a pleasant experience for our customers, is our key to success. Services include - Shingle Roof - Flat Roof - Eavestrough - Skylight - Soffit - Gutter - Siding - Ventilation - Whirlybird Turbine - Roof Clean Up

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  • General contractor in Oshawa

    I am Jack of all trades

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  • General contractor in Oshawa

    I can help you with garden cleaning, demolition, home cleaning, cleaning newly built houses, and painting areas. I have over 2 years of experience and am at your service.

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  • General contractor in Oshawa

    We are licensed general contractors providing full-service interior and exterior home renovations. Our specialties include kitchens, bathrooms, flooring, roofing, decks, and home siding. We also offer in-house engineering for structural projects that require blueprints, and we take care of all necessary permits. Our team handles water infiltration issues as well as mold and asbestos remediation. All work is completed by our own skilled carpenters, we do not subcontract any of our projects. All our estimates and initial visits are FREE. Please note that we do not offer landscaping services.

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  • General contractor in Oshawa

    With over 14 years of experience, I take pride in my quality craftsmanship. We are owner operated, and believe in building long-term relationships with our clients by delivering honesty along with exceptional work. We pride our company on reliability, great communication, integrity, and customer service. We are experts in our trade and will do our best to keep you as educated as we can on your particular project. Give us a call today! We look forward to working with you! Heating and Air conditioning, install and repair. New gas line install.

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    • Best of Newly Listed 2025

    Interiality is a one-stop-shop for all your home improvement needs! We specialize in crafting beautiful decks and fences to enhance your outdoor space, as well as transforming your bathrooms, basements, and kitchens into stunning and functional areas. With a keen eye for detail and a commitment to quality, we bring your renovation dreams to life. From start to finish, we handle everything with expertise and care, ensuring a smooth and successful renovation experience for you. Our company not only excels in delivering top-notch quality and craftsmanship but also offers competitive pricing. We believe that high-quality renovations should be accessible to everyone, and we strive to provide the best value for your investment. With us, you can achieve your renovation goals without breaking the bank. Let's make your dream home a reality without compromising on quality or budget!

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  • General contractor in Oshawa

    Professional Profile Experience & Track Record I have been operating as an expert construction and renovation consultant for several years, specializing in construction structural requirements, and precision kitchen and bathroom remodeling. My background is built on advising homeowners through high-stakes residential projects—ensuring that everything from complex 2-layer fire-rated assemblies to intricate curbless shower waterproofing systems are executed flawlessly. Over the years, I have successfully guided projects from initial framing and structural review bypasses down to the final finishing details

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  • General contractor in Oshawa

    Flooring Installer Skilled in installing, repairing, and finishing floors Specialist – Experienced with hardwood, laminate, vinyl, and tile. Professional Floor Installer Providing high-quality flooring solutions. Contractor – Reliable service for residential and commercial projects. commercial & residential

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  • General contractor in Oshawa

    At Diafa Carpentry, we make home projects simple. Our experienced team offers carpentry, drywall installation and repair, general handyman services, and moving assistance to help you complete your projects smoothly and efficiently. Whether you need custom woodwork, home repairs, or help moving, we deliver reliable service and quality workmanship every time.

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4.9

Top rated general contractors

Our general contractors in Oshawa, are rated 4.9 out of 5 based on 396 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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