Top-Rated General Contractings in Oshawa, Ontario

Looking to hire a verified general contracting in Oshawa? GTA Trades Daily independently indexes and monitors general contracting contractors across Oshawa and the broader Greater Toronto Area, checking each listing for valid Ontario licensing, liability insurance, and WSIB coverage before approval. Browse verified profiles, read real homeowner reviews, and request free quotes — all in one place.

Frequently Asked Questions

What is the average cost of hiring a General Contracting in Oshawa?

General Contracting costs in Oshawa typically range from $20,000 to $55,000 CAD depending on the scope of work, materials, and urgency. Get free quotes from multiple verified contractors on GTA Trades Daily to compare pricing for your specific project.

Are General Contractings in Oshawa required to hold specific Ontario licensing?

Yes. In Ontario, general contracting contractors are subject to provincial licensing and regulatory requirements. All verified listings on GTA Trades Daily have been checked for valid credentials including provincial licensing, liability insurance, and WSIB coverage before being approved for the directory.

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Best General Contracting in Oshawa

Compare 5 verified general contracting contractors in Oshawa. Read real homeowner reviews, check licensing, and get free quotes from professionals who serve your area.

☆☆☆☆☆0.0 average rating·0 reviews·5 contractors
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Finding a Trusted General Contracting Contractor in Oshawa

Oshawa's housing stock ranges from postwar bungalows near Donevan and Central to newer subdivisions in Windfields and Taunton, plus a growing stretch of townhomes and infill builds close to downtown and the Oshawa GO corridor. General contractors here regularly deal with older homes needing structural updates alongside newer builds where homeowners want to reconfigure open-concept layouts or finish basements for rental income or multigenerational living.

Because Oshawa has seen steady growth tied to Ontario Tech University, the hospital expansion, and continued auto-sector employment, demand for basement apartments and secondary suites has pushed many homeowners toward full-scope renovations rather than piecemeal repairs. A qualified general contractor coordinates permits through the City of Oshawa's building division, manages trades like electrical and plumbing, and ensures work meets Ontario Building Code requirements, which matters especially for basement second-unit conversions that require egress windows and fire separation.

GTA Trades Daily currently lists five verified general contractors serving Oshawa, including P&O General Construction Inc, TMD Home Construction, Astaneh Construction, 2x2 Construction, and SLG Contracting. Each has been vetted for licensing and insurance before appearing in our directory. Homeowners comparing quotes should ask contractors directly about their experience with Oshawa's permit timelines and whether they subcontract specialty work like HVAC or electrical to ESA-licensed and TSSA-certified professionals, since a general contractor's role is to manage and coordinate these trades rather than perform every task themselves.

Across the GTA, basement renovations typically run $25,000–$55,000 depending on scope, whether a second unit is being created, and finishing quality. Kitchen renovations range from $20,000–$50,000 based on layout changes, cabinetry, and appliance packages. In Oshawa, older bungalows with lower basement ceiling heights or homes requiring underpinning tend to land toward the higher end of the basement range, while straightforward cosmetic kitchen updates in newer Windfields or Taunton homes may sit closer to the lower end. Always request itemized quotes so you can see labour, materials, and permit costs separately.

Top General Contracting Contractors in Oshawa

5 found
PG

#1P&O General Construction Inc

Verified
☆☆☆☆☆ 0
0 reviews

P&O General Construction offers a comprehensive range of renovation services, including stairs renovation, bathroom renovation, whole house renovation, kitchen renovation, and wall removal, for both commercial and residential properties in the Greater Toronto Area. With a steadfast commitment to delivering high-quality work and ensuring customer satisfaction, we take pride in every project we undertake. Whether you're seeking to enhance specific areas or undergo a complete transformation, our dedicated team is fully equipped with the expertise needed to turn your vision into reality. Our core values of transparency, professionalism, and exceptional customer service guide us as we strive to make the renovation process as seamless and stress-free as possible. When it comes to your renovation needs in the Greater Toronto Area, you can place your trust in P&O General Construction.

10 years in business✓ Licensed✓ Insured
TH

TMD Home Construction

Verified
☆☆☆☆☆ 0
0 reviews

We deliver complete home renovation projects as fully integrated builds, managing kitchens, bathrooms, flooring, layout improvements, and finishing under one coordinated plan. Our kitchen renovations focus on functional layouts, cabinetry planning, lighting coordination, and precise installation supported by detailed design. Our bathroom renovations prioritize proper waterproofing, technical accuracy, and durable finishes designed for long-term performance, not just visual appeal. For basement renovations, we clearly distinguish between finished basements and legal second units. Legal basement projects are planned with code awareness, inspection readiness, and correct sequencing from the start.

8 years in business
AC

Astaneh Construction

Verified
☆☆☆☆☆ 0
0 reviews

MESSAGE FROM THE CEO & FOUNDER OF ASTANEH CONSTRUCTION I’m a veteran renovation professional with a range of whole house renovations under my belt, including kitchen renovation, basement renovation, and bathroom renovation at the highest level in Toronto. Nobody appreciates more than I that when your remodeling project is on the line, the devil’s in the details. My genuine client value rests in the fact that I never cut corners when delivering a result beyond your expectations. We greet every project and client visiting our Yonge Street office with the same famous Astaneh Construction VIP treatment. That’s because we know that we’re only as strong as our latest client reviews. Client budgets dictate everything, so we focus on saving you money wherever possible, not looking for ways for you to spend more. Work with us, and immediately you’ll get the full meaning of partnership and passion for the project. We translate your ideas into unique spaces with five-star ambiance, accommodation, and comfort.

10 years in business✓ Licensed✓ Insured
2C

2x2 Construction

Verified
☆☆☆☆☆ 0
0 reviews

Professional and experienced builders With over 50 years of building experience, our team of senior building consultants, general contractors, project managers, and skilled workers have constructed and managed more than 100+ home renovations, custom homes and sub-divisions. Certified Company Satisfaction Guaranteed Precise Builder Excellent Support

50 years in business✓ Licensed✓ Insured
SC

SLG Contracting

Verified
☆☆☆☆☆ 0
0 reviews

Giacomo Vecchiarelli, founder of SLG Contracting, has been in the renovation industry for over 10 years and has gained a reputation as a trusted name in the Greater Toronto Area. Giacomo and his team of experts stand out from the competition with their combination of expert knowledge, approachable personalities, and exceptional customer service. They approach every project with the goal of treating it as if it were their own home, and prioritize clear communication to ensure successful renovations. With his client-centric approach and real-life experience in designing functional and practical spaces, Giacomo is able to guide his clients in achieving their renovation goals. He is supported by a team of skilled and highly organized professionals who are committed to delivering quality and reliable renovations.

8 years in business✓ Licensed✓ Insured

General Contracting Articles & Guides

Frequently Asked Questions

Do I need a permit for a basement renovation in Oshawa?

Yes, most basement renovations in Oshawa require a building permit from the City's Development Services department, particularly if you're adding a bedroom, bathroom, or a second dwelling unit. A general contractor should handle permit applications and coordinate inspections at framing, insulation, and final stages.

Can a general contractor create a legal basement apartment in Oshawa?

General contractors can manage the renovation, but a legal second unit also requires meeting Oshawa's zoning bylaws for second dwelling units, along with Ontario Building Code requirements for egress windows, ceiling height, and fire separation. Confirm your contractor has experience specifically with second-unit approvals in Oshawa, not just cosmetic basement finishing.

How do I verify a general contractor is properly insured before hiring in Oshawa?

Ask for proof of WSIB coverage and liability insurance directly from the contractor, and confirm any electrical or gas work will be completed by ESA-licensed electricians or TSSA-certified technicians as subcontractors. All contractors listed on GTA Trades Daily have been verified for licensing and insurance before being added to our directory.

How much does a general contracting cost in Oshawa?

Based on current GTA pricing data: Basement Reno typically runs $25000–$55000; Kitchen Reno typically runs $20000–$50000. General Contracting costs in Oshawa vary based on the scope of work, urgency, and contractor experience. Get free quotes from multiple verified contractors on GTA Trades Daily to compare pricing for your specific project.

How do I find a licensed general contracting contractor in Oshawa?

All contractors listed on GTA Trades Daily are categorized by trade and service area. Look for the "Verified" badge which indicates we have confirmed their licensing and insurance credentials with Ontario regulatory bodies.

What should I look for when hiring a general contracting in Oshawa?

Check for proper licensing (required in Ontario for general contracting), liability insurance, WSIB coverage, and a track record of positive reviews from Oshawa homeowners. Always get at least 3 written quotes before committing.

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