Do You Need Help with
Concrete? Waterproofing? Underpinning? Repair? Foundations?
- Free Estimate
- Serving GTA
- 25+ Years Expertise
- Reliable Solutions
Do You Need Help with
Concrete? Waterproofing? Underpinning? Repair? Foundations?
20+ Years of On-Budget, Stress-Free Concrete Solutions
- 416-992-6434
- FREE ESTIMATE
- SERVICE THE GTA







Our Featured Services in Toronto
Our Featured Services in Toronto
Customer Reviews
I had a great experience working with G1000 Home Substructure, and Gemil, the owner, exceeded our expectations. He seamlessly took over a challenging basement walkout project, providing thoughtful recommendations while prioritizing quality, design, and budget. Gemil maintained regular communication, explaining... read more every detail transparently and coordinating effectively with subcontractors and engineers. Despite a tight deadline, he finished the project before the first snowfall, staying on budget. Thank you, Gemil, for your professionalism and commitment to quality!
Lavesh Chattlani
December 2, 2023Good communications with Gemil. He listens to the customer, provides honest advice (I learned that he was formerly a home inspector, and it shows), a fair price and he follows through on timelines. He also remained involved from start... read more to finish which is a big plus when hiring a contractor. I am very happy with the work.
Luc Bjork
June 2, 2024I highly recommend Gemil and his team. I was in the middle of listing my home for sale and I had a big emergency.... water was coming up through the cement of my basement floor. I was devastated.... read more I needed my basement water proofed and fast! Gemil was professional and made himself available within a couple days. When Gemil and his team showed up they got the job done fast and right! Gemil showed empathy and did everything he could to get a team together extremely quickly. To present date my basement is still dry which allows me to sleep soundly at night to know that Gemil and his team did such an amazing job and my basement will not flood. Hire Gemil and his team, you won't be disappointed.
Tina Lacivita
October 2, 2023We have recently had moisture control services provided by Gemil Lacroix and G1000 Home Substructure Contractor. Based on our direct experience with Gemil and his crew, we can unreservedly recommend them for any substructure repairs required. Gemil... read more was prompt, efficient, reasonably priced and a pleasure to deal with. The work was professionally completed and solved the issue at hand.
Joel Shafer
October 2, 2023I can't help but share by satisfaction with Gemil once more! I've been fortunate to know Gemil for over a decade, and his recent waterproofing job is another example of why I keep using him. He has great work ethic.... read more It's not just about waterpoofing; he's a dependable expert across many facets of construction. His deep understanding gives me peace of mind knowing the job will be done correctly. I trust Gemil. Recommending him is a no-brainer because I've experienced his professionalism firsthand. I have no hesitation in vouching for him.
Lisa Sinopoli
October 2, 2023I would definitely recommend G1000 for their extensive knowledge, quality work, and superb communication! From the initial site visit to the finishing touches, Gemil was always available to answer any questions and give honest advice about the project - going... read more above and beyond what was expected. We had lots of cracks in our foundation and serious settling in our floors, and since the repairs we’ve had several heavy downpours and not a drop in sight! Contractors don’t have the best reputation, but you can put your mind at ease when dealing with Gemil and G1000.
Adam Hill
July 2, 2024Like many, the July 2024 flooding that hit Toronto impacted our home, and we had to make the difficult choice to either just repair the damage and waterproof the basement, or go with a much more involved underpinning (and waterproofing)... read more job, that would leave us with a more open, usable basement area. After talking with multiple companies, G1000 came highly recommended and we couldn't be happier with their work. The owner (Gemil) remained conscious/understanding of our budget, timelines, and need for consistent, open and honest, two-way communication. As newbies to the world of underpinning and all the nuance associated with the plans, plumbing, and permits, it was great to have a (very) patient and understanding expert to support us through the process (and even recommend his trusted basement renovation contractor for phase two - basement finishing). We HIGHLY recommend Gemil and his G1000 team for their great work, customer focus, and professionalism.
KevCarly CGS
February 2, 2025Very knowledgeable team of professionals. There is a lot to be said about having peace of mind when hiring someone to do work for you. With Gemil and his team, you can rest easy knowing the work will be done... read more right and with the utmost quality. I cannot recommend Gemil / G1000 Home enough!
Sonia Theriault
November 2, 2023We would definitely recommend Gemil. He is an honest contractor whose expertise was invaluable to us. We would definitely recommend him..
lena priore
February 2, 2024
EXCELLENT Based on 22 reviews KevCarly CGS2025-02-01Trustindex verifies that the original source of the review is Google. Like many, the July 2024 flooding that hit Toronto impacted our home, and we had to make the difficult choice to either just repair the damage and waterproof the basement, or go with a much more involved underpinning (and waterproofing) job, that would leave us with a more open, usable basement area. After talking with multiple companies, G1000 came highly recommended and we couldn't be happier with their work. The owner (Gemil) remained conscious/understanding of our budget, timelines, and need for consistent, open and honest, two-way communication. As newbies to the world of underpinning and all the nuance associated with the plans, plumbing, and permits, it was great to have a (very) patient and understanding expert to support us through the process (and even recommend his trusted basement renovation contractor for phase two - basement finishing). We HIGHLY recommend Gemil and his G1000 team for their great work, customer focus, and professionalism. Shriraj Shetye2025-01-27Trustindex verifies that the original source of the review is Google. I recently hired G1000 Home for waterproofing and underpinning services, and I couldn’t be more satisfied. Their team was professional, knowledgeable, and efficient throughout the entire process. They took the time to thoroughly assess my property and provided expert solutions to address the issues I was facing. The quality of their work is outstanding, and I feel much more confident in the stability and safety of my home now. If you’re in need of waterproofing or underpinning services, I highly recommend G1000 Home. They’re reliable, trustworthy, and truly care about their customers! Wendy Grisbrook2024-10-12Trustindex verifies that the original source of the review is Google. Gemil was incredibly helpful and informative. He saved us a lot of money and grief with respect to a home purchase. I highly recommend G1000 Home Substructure for any concrete needs. You will not be disappointed. A highly reputable company. Navpreet Kaur2024-09-21Trustindex verifies that the original source of the review is Google. I recently hired G1000 for underpinning and waterproofing, and I couldn't be happier. The team was professional and efficient, completing the job with minimal disruption. My basement stays dry even during heavy rain. Excellent customer support throughout the process. Highly recommend their services for anyone needing solid foundation work! Joan andScott2024-07-15Trustindex verifies that the original source of the review is Google. We hired G1000 to underpin the crawl space of our home. This is a very complex project so we took our time to find the right company to do the job and he was highly recommended. We are so happy we chose G1000. It was an amazing experience and would highly recommend G1000 to anyone doing underpinning or any concrete work. As an expert in project management, with 25+years of experience, I can say that this project was well planned and efficiently executed. Gemil’s communication skills are fantastic. He ensured we are comfortable with the approach before proceeding and addresses any questions or concerns very quickly. He managed our expectations and delivered as promised. He always made the time to speak to us. This was our first project that required a city permit and many inspections, so we had a lot of questions. After every conversation, we felt reassured with clear and understandable next steps. Each inspection was passed with flying colours – the city inspectors were so impressed with the work being done. His team is wonderful – professional, on time, works hard, and cleans up every day. Our neighbours were wow’d on the efficiency of the project - they completed in 4 weeks! Gemil is truly the example of great client management and professionalism. Adam Hill2024-06-25Trustindex verifies that the original source of the review is Google. I would definitely recommend G1000 for their extensive knowledge, quality work, and superb communication! From the initial site visit to the finishing touches, Gemil was always available to answer any questions and give honest advice about the project - going above and beyond what was expected. We had lots of cracks in our foundation and serious settling in our floors, and since the repairs we’ve had several heavy downpours and not a drop in sight! Contractors don’t have the best reputation, but you can put your mind at ease when dealing with Gemil and G1000. Arash Rahimpour2024-06-25Trustindex verifies that the original source of the review is Google. Gemil and G1000 was recommended to me by a trusted friend who had recently hired them for a major sub structural work in his home. I was having lots of water issues in my basement, especially after any heavy rain. I contacted Gemil who promptly responded to my request. From the initial meet, I could tell Gemil was different from all other waterproofing companies that I had contacted. His approach to educate me on the causes for the flooding I had been experiencing, explaining the different options available to me and working within my budget, really made him standout. I could tell that this wasn't just about a job for him. He truly values taking care of his clients and delivering the highest level of quality and service. The work itself was done on time and on budget by a crew of highly professionals. They were there when they said they were going to be, and continued to provide me with progress updates as the work was being completed. Gemil, himself regularly checked-in with me and his team to make sure the highest level of service was being delivered every day. I can't thank my friend enough for having recommended me Gemil and the G1000 team. Let me return the favour and recommend you to contact them for your next sub structural work in your home. kavyn laflamme2024-06-25Trustindex verifies that the original source of the review is Google. we had very good service. Professional service and very qualified staff. Jenn Phillips2024-06-10Trustindex verifies that the original source of the review is Google. Gemil and his team were fantastic! We had a leak in our basement and I reached out to G1000. There were able to locate and solve the problem on a short time line. I would highly recommend G1000's services! Luc Bjork2024-05-27Trustindex verifies that the original source of the review is Google. Good communications with Gemil. He listens to the customer, provides honest advice (I learned that he was formerly a home inspector, and it shows), a fair price and he follows through on timelines. He also remained involved from start to finish which is a big plus when hiring a contractor. I am very happy with the work.
Partner for Expertise and Custom Solutions
We begin by attentively listening to your needs, goals, and vision, ensuring a comprehensive understanding of your project requirements.
We develop tailored solutions that align with your vision, providing a personalized approach to meet and exceed your expectations.
We handle the entire process from start to finish, ensuring seamless execution and delivering exceptional results on time and within budget.
- Why choose us?
G1000 Home Substructure
Specializing in concrete and waterproofing across the GTA, we have a track record of over 1,000+ completed projects.
Our background includes years of industry experience and a skilled team committed to high quality work. We excel not only in concrete but also in inspection, renovation, and waterproofing, showcasing our versatility and commitment to excellence.
Our dedication to exceptional quality, client satisfaction and a history of successful projects has established and cemented us as industry leaders.

Gemil Lacroix Director and Founder
Home Inspection
Projects Completed
- OUR PORTFOLIO
Recent Projects Across The GTA
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Frequently asked questions
Our FAQ section is designed to provide you with quick and easy access to answers. However, if you can’t find what you’re looking for, our team is always here to assist you.
To schedule an appointment with G1000 Home, simply follow these steps:
Contact Us: Reach out to us via phone, email, or through the contact form on our website. Let us know your preferred date and time for the appointment, as well as any specific details or questions you may have.
Confirmation: Once we receive your request, we’ll confirm the appointment with you via your preferred communication method. We’ll also provide any additional information you may need for the appointment.
Appointment Day: On the scheduled day, our team will arrive promptly at the agreed-upon time. We’ll discuss your requirements, assess the site if necessary, and address any questions or concerns you may have.
Discover G1000 Home by following us on social media and checking out our Google Reviews. Contact us directly for any inquiries or to discuss your project. We’re here to help!
To utilize our expertise, we need to ask you a few questions to determine what you really need and how we can best serve you. At times, we can answer this question with a very simple phone call. Our pricing is competitive and tailored to your specific needs. We offer customized quotes based on the scope and requirements of your project. This approach ensures you only pay for the services you need, providing the best value for your investment. Contact us for a detailed quote and to discuss your project’s unique needs.

Three Ways to Get A Quote
1. Drawing Based
Got drawings? It’s a great start for us to provide you with an accurate quote.
2. Photos & Measurements
Snap some photos, take some measurements, and we’re on our way. A Little Prep Goes a Long Way: Take clear photos and measure up the area you’re focusing on.
3. Site Visit Quote
Prefer face-to-face? We love meeting our clients in person! A site visit allows us to get every detail just right. Setting Up: Ensure we can access the site, and think about any questions or specifics you’d like to discuss.
Get a custom quote
Contact us today with no obligation to discuss your concrete, foundation, or waterproofing needs and let’s bring your vision to life!