
Basement Renovations in Oshawa
quality craftsmanship & 100% customer satisfaction
Square Footage | Cost Range |
400-500 sq. ft. | $19,900 - $25,400 |
500-600 sq. ft. | $25,400 - $29,900 |
600-700 sq. ft. | $29,900 - $34,900 |
700-800 sq. ft. | $34,900 - $39,900 |
800-900 sq. ft. | $39,900 - $44,900 |
1000-1400 sq. ft. | $49,500 - $89,900 |
Our Advantages
- Detailed and accurate estimate
- 5 Million liability insurance
- Guaranteed time frame
- Limited lifetime warranty
- Post-renovation support
- Licensed & insured
- Top quality materials
- Affordable Prices
What Our Clients Say
Latest Reviews:
- All
- Homestars
- Video
CSG did an amazing job on renovating my basement. Work was fast, efficient and they helped point out some space saving changes that really helped maximize the space. The basement addition involved adding a bathroom, doing a complete reno of the space including living room, office, storage rooms, electrical room and Exercise room. The work was finished professionally and very fast. I’ve dealt with a number of workers in the past and these have been the best I’ve worked with. Highly recommended.
Their work exceeded my expectations. I finally found a professional renovation company I can confidently rely on. They did a complete floor replacement in all rooms and paint throughout. Communication was always clear and prompt. Owner, Zeev and his team worked with my special requests and the results were outstanding. Not a single detail was overlooked and I could not find a single flaw in the workmanship. They left everything spotless. It all looks amazing. Bonus; all the work was completed under the estimated time frame and I was very pleased with the reasonable cost of the entire job. CSG Renovation ticks all the boxes. Thank you Zeev!
We had a great experience working with Zeev! His team actually finished our condo renovations ahead of schedule and the quality of their work was excellent. I would recommend CSG and work with them again. Reasonably priced and a job done right. Thanks Zeev!
Recent Projects
- Basement
- Commercial
- Condo
- Home

Basement Renovation Calculator
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Basement Remodeling Process
Why Choose CSG Renovation?
- Management problems
- Unclear price changes
- All materials hassle on you
- Minimal or no design
- Unprofessional labour
- Start-to-finish customer support
- Upfront transparent proposal
- Materials ordered & delivered
- Experienced design help
- Professional, certified contractors
Basement Renovation in Oshawa
CSG Renovation, a reliable basement renovation company in Oshawa, is ready to make your dream a reality. We can handle even the most complex cases and ideas. When renovating a basement, consider transforming the space into a multi-functional area such as a home office, gym, or entertainment hub, tailored to your lifestyle and needs. We provide top-notch renovation services that will exceed your expectations. As an Oshawa homeowner, you deserve a basement that reflects your style and meets your needs.
Possesses proficiency in various services, our team deftly carries out certified basement renovations in Oshawa, enhancing your home’s livability. We’re not merely contractors, but a full-fledged renovation company; therefore, executing your ideas is within our reach.
Basement Renovation Services Types
- General Basement Renovations. Basement improvements is transforming and optimizing basement areas. The expenses of such renovations vary based on factors like the basement size, required changes, used materials, and additional services required. We can convert your basement into a purposeful and stylish spot. From renovating a basement to creating a home office or entertainment area, CSG Renovation offers comprehensive basement renovation services.
- Basement Finishing. Basement finishing from CSG Renovation converts unfinished basements into functional rooms. As a reputable Oshawa-based company, we provide comprehensive basement finishes, including insulation, flooring, and walls. Our skills result in beautifully finished basements, providing additional living areas or storage areas. This service increases home value and usable square footage while complying with building and decoration norms. Basement finishing is a valuable solution for Oshawa homeowners seeking to maximize their home’s potential and enhance livability.
- Basement Underpinning. Basement underpinning, offered by CSG Renovation, involves strengthening a foundation to increase stability and create additional area. It is necessary when addressing foundation issues or expanding basement areas. The process includes excavation, installing new footings, and reinforcing the existing foundation. Trust CSG Renovation for expert basement underpinning services to enhance the structural integrity and maximize the potential of your area.
- Legal Basements. Basement remodels and renovations in Oshawa adhere to local building codes and regulations, creating legal and compliant living areas. The distinction between a legal basement and a regular one lies in meeting safety, structural, and zoning requirements. Legal basements ensure occupant well-being and safeguard property value by adhering to all basement regulations. CSG Renovation guides you through the basement remodeling process, for compliance with Oshawa building codes.
Our Basement Renovation Company
By rejuvenating this frequently ignored area into a modern basement, it becomes an inviting extension of your living area that you’d enjoy spending time in. A myriad of factors like zoning restrictions, building rules, and renovation regulations can complicate basement renovations. But with a skilled team like CSG Renovation and our comprehensive services, this process becomes less daunting, promising a hassle-free experience.
Beyond basement renovations, our services also incorporate basement leak repairs, improvements, and insulation, cementing our position as your solution provider. Engage with our Ontario-based renovation company today, and allow CSG Renovation to mold a basement that reflects your aspirations!
We Make All Types of Renovation Simple
We are qualified to do work in all renovation services in Toronto and GTA.
CSG Renovation is a company that offers quality service and 100% customer satisfaction. We make legal basement renovation, office and commercial renovation, townhouse and condo renovation, residential home renovation simple, with our qualified team we take pride in taking care of all your renovation needs under one roof.
We’re looking forward helping you
Why Us
Yes, in Oshawa, you typically need a permit to finish a basement, especially if you’re changing the structure, altering the plumbing or electrical system. We assist our clients in understanding and acquiring the necessary permits.
You might want to reconsider finishing a basement if there are serious structural issues, excessive moisture problems, or if the basement regularly floods. We can help you identify these problems and provide a professional assessment of the feasibility of your renovation.
Homeowners can prepare by clearing out the basement, making decisions about the design and function of the space, setting a realistic budget, and be prepared for some disruption while we renovate your basement.
It’s generally cheaper to finish a basement than to add a second story because fewer structural changes are needed. Adding a second story involves altering the home’s foundation and structure, resulting in significant costs comparable to creating a new basement.
Unexpected issues can include the discovery of mold, pests, or structural damage that wasn’t apparent until the renovation began. Plumbing or electrical issues can also arise if these systems are outdated or improperly installed.
We offer comprehensive services, including basement design. Our experienced team of designers can work closely with you to ensure that the final result matches your vision and needs. However, if you prefer to hire a separate designer, we’re flexible and ready to collaborate.
We’re committed to minimizing disruption and damage to the rest of your home. This includes using dust barriers, protecting floors, cleaning up our work area at the end of each day, and carefully scheduling work to minimize noise and disturbance.
Yes, at CSG Renovation we stand by our work. We offer maintenance and follow-up services to ensure that you are fully satisfied with the outcome and that the renovation holds up over time.
We typically use spray foam or rigid foam board insulation in basements, as it provides superior moisture control and thermal resistance. Good insulation reduces energy costs by preventing heat loss in winter and keeping the basement cool in summer.
We have rigorous project management processes in place. This includes detailed planning, budgeting, and scheduling before work begins. We then monitor the project closely, communicating with you regularly to ensure that we stay on track.
Older homes can present challenges such as outdated electrical and plumbing systems, structural issues, and possible presence of hazardous materials like asbestos. Our team is experienced in dealing with these issues and we take all necessary precautions during the renovation process.
At CSG Renovation, we prioritize safety above all. This includes using personal protective equipment, ensuring safe use of tools and equipment, adhering to local building codes, and maintaining a clean work site to prevent accidents.


Our Service Areas
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The basement of your house is an area that you can make very good use of if you will work on it appropriately. You can transform your basement into a living room, a gym, a relaxing place, or any other use you may want to put it to. All you need is to beautify it in accordance with what you want to use it for.