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Do You Need Help with

Concrete? Epoxy Floor? Waterproofing? Underpinning?

When your property is at risk, trust the team that delivers real solutions—done right the first time, without the stress of unreliable contractors.

The Problems We Solve

Most homeowners and contractors have been burned before — cheap quotes, rushed work, and temporary fixes that fail.

Our Solution: At G1000 Home Substructure, we do it right the first time. You get expert guidance, honest recommendations, and long-lasting results that protect your home and your wallet.

Ignoring foundation and waterproofing problems only makes repairs more expensive and more stressful.

Our Solution: We diagnose the real issue, not just the symptoms. Our engineered-level methods and premium materials ensure your home or building stays safe, dry, and structurally sound.

Contractors disappearing, timelines stretching, and surprises at every step — it’s a common frustration.

Our Solution: We take on only a limited number of clients so you get clear communication, reliable timelines, and a clean, well-managed project from start to finish.

Our Commitment to You

At G1000 Home Substructure, we recommend what’s best for you, your home, and your budget. If something doesn’t make sense — we tell you upfront. No upselling. No pressure. No surprises.

Just honest guidance and the right solution for your situation.

Partner for Expertise and Custom Solutions

We Listen & Understand

We begin by attentively listening to your needs, goals, and vision, ensuring a comprehensive understanding of your project requirements.

Customized Solutions

We develop tailored solutions that align with your vision, providing a personalized approach to meet and exceed your expectations.

Seamless Execution

We handle the entire process from start to finish, ensuring seamless execution and delivering exceptional results on time and within budget.

Years of Experience
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Happy Clients
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WHAT OUR CLIENTS SAY

Customer Reviews

  • We 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

    Joel Shafer Avatar Joel Shafer
    October 2, 2023

    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!

    Jenn Phillips Avatar Jenn Phillips
    July 2, 2024

    I 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

    Lisa Sinopoli Avatar Lisa Sinopoli
    October 2, 2023
  • Gemil is a sincere contractor. Dedicated and can be trusted with your improvement/repair project. Does a great clean up after.

    J Lowe Avatar J Lowe
    January 2, 2024

    We would definitely recommend Gemil. He is an honest contractor whose expertise was invaluable to us. We would definitely recommend him..

    lena priore Avatar lena priore
    February 2, 2024

    we had very good service. Professional service and very qualified staff.

    kavyn laflamme Avatar kavyn laflamme
    July 2, 2024
  • Exceptional service. I’m thankful that Gimel is also dog friendly

    Reshaud Khan Avatar Reshaud Khan
    December 2, 2023

    Gemil called back right away, was friendly and was very helpful in diagnosing the problem right over the phone and providing cost-effective solutions.

    Rahul Arora Avatar Rahul Arora
    February 2, 2024

    I hired G1000 Home to install a concrete pad in the backyard for our 8x10 shed. Gemil provided a fair quote, and supervised the job from start to finish, ensuring time lines were met, the site was kept clean... read more

    Rhoda Villanueva Avatar Rhoda Villanueva
    October 2, 2023

1. Hiring the Wrong Contractor Costs More in the End

Most homeowners and contractors have been burned before — cheap quotes, rushed work, and temporary fixes that fail.

Our Solution: At G1000 Home Substructure, we do it right the first time. You get expert guidance, honest recommendations, and long-lasting results that protect your home and your wallet.

2. Leaks, Cracks, and Structural Issues That Keep Getting Worse

Ignoring foundation and waterproofing problems only makes repairs more expensive and more stressful.

Our Solution: We diagnose the real issue, not just the symptoms. Our engineered-level methods and premium materials ensure your home or building stays safe, dry, and structurally sound.

3. Projects Delayed, Poorly Managed, or Done With No Communication

Contractors disappearing, timelines stretching, and surprises at every step — it’s a common frustration.

Our Solution: We take on only a limited number of clients so you get clear communication, reliable timelines, and a clean, well-managed project from start to finish.

Our Commitment to You

At G1000 Home Substructure, we recommend what’s best for you, your home, and your budget. If something doesn’t make sense — we tell you upfront. No upselling. No pressure. No surprises.

Just honest guidance and the right solution for your situation.

Posted on Google Google
Horia Popovici profile picture
Horia Popovici
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I live in East York and hired G1000 (Gemil and his crew) to dig down (approx 1-ft), add benching, install sump pump, interior waterproof, and pour new flooring for the basement in my 100+ year old home. As part of the project we were also able to remove a post to create additional space, as well as replace an old rotten support post (that Gemil and his crew noticed had major issues). I don’t know much about basement work and waterproofing, and from the very start Gemil was great at explaining every step that needs to happen and why it’s important. He was also key in helping me apply for permits with the city, finding an architect and engineer to work with, helping me get multiple quotes from plumbers to do the required piping work, and managing inspections with the city. Gemil’s original quote for the work was accurate throughout the whole project. It was great working with Gemil. He was in daily communication with me via text+calls to keep me up to date on progress, his team and crew were very experienced, professional, and polite. They somehow left the job site cleaner than it was when they first started, and perfectly repaired the entry-point for removing dirt from the basement digging. I was surprised that all this work only took ~3-4 weeks. I’m fortunate I got to know Gemil and his crew as part of this project, and will be contacting him for help again on future major house work!
Posted on Google Google
J J profile picture
J J
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Gemil knows his stuff!! He wasn't the least bit pushy and took the time to explain everything thoroughly. Highly recommend.
Posted on Google Google
G profile picture
G
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Gemil is a pleasure to deal with whether it's for home inspectors or flooring. He has a wealth of information and is a really kind person 5/5
Posted on Google Google
shirley cho profile picture
shirley cho
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I was looking into a french drain solution as the water from my neighbour's downspouts flowed directly toward my house, causing my window wells to overflow at times. After assessing a few proposals, I picked G1000 Home Substructure. What convinced me to go with Gemel Lacroix is that he took his time to answer ALL my questions. He even drew a diagram to show me exactly what he was proposing ! Not every company that I contacted was willing or able to do that !!! His quote for a french drain, 4x4 well and downspout extensions was also very competitive. Gemel and his crew did a great job. They arrived on time, took care to keep my lawn intact as possible, and left the place very tidy ! While he was here, he noticed my front steps had sunk and he suggested that I get them raised. Something I did not think but so glad I got this safety hazard fixed too ! My thanks to Gemel and his team for a great experience !
Posted on Google Google
Kim Kane profile picture
Kim Kane
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I hired G1000 Home to waterproof my basement and I have to say that I was 100 percent satisfied with Gemil and his crew. The job went smoothly from start to finish. Gemil was onsite and always available to answer any questions at any time. The job site was kept very clean and the quality of work and professionalism was very impressive and completed in a timely manner. I could not have asked for a better experience. Thank you for making a difference and caring about your customers!! Kim Kane May 2025
Posted on Google Google
L Kelly profile picture
L Kelly
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Had some water proofing that needed to be done. Gemil was easy to work with. They were not the cheapest price but I went with my gut feeling. They did a great job. 5 stars 🌟 all day long
Posted on Google Google
Yalini Ravi profile picture
Yalini Ravi
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I had the pleasure of speaking with Gemil, and I was genuinely impressed by his professionalism, honesty, and integrity. It’s rare to come across someone in business who is truly more focused on helping others than simply making a profit. Gemil took the time to understand our situation thoroughly, provided thoughtful advice, and even helped troubleshoot the issue by taking photos to assess everything properly. What stood out most was that, despite not earning anything from our interaction, he referred us to a trusted plumber and made it clear we were welcome to reach out again with any questions or if we needed further assistance. It’s clear that this company operates with genuine care for its customers. I highly recommend them to anyone looking for trustworthy, knowledgeable, and service-oriented professionals.
Posted on Google Google
KevCarly CGS profile picture
KevCarly CGS
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex 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.
Posted on Google Google
Wendy Grisbrook profile picture
Wendy Grisbrook
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex 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.
Posted on Google Google
Navpreet Kaur profile picture
Navpreet Kaur
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex 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!

Built on Process.
Built to Last.

25+ Years of Experience

Specializing in concrete and waterproofing across the GTA, we have a track record of over 1,000+ completed projects.

Our Background

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 Commitment

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

1,000+

Home Inspection

1,000+

Projects Completed

Our Trusted Partners

Our Trusted Partners

Your satisfaction is our # 1 priority.

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.

What makes you the best?
With a track record of over 10,000 basement foundation waterproofing projects in the Greater Toronto Area, as well as numerous high-profile commercial and industrial undertakings, we’re your go-to for exceptional substructure services in Southern Ontario.
Why G1000 Home Substructure Is Perfect for Your Needs?
“We exclusively collaborate with individuals who genuinely require our services, prioritizing customer service and trust above all else. Our dedication to excellence, dependability, and ensuring customer satisfaction distinguishes us from others. Backed by our seasoned team and tailored solutions, we consistently surpass expectations. If you’re solely seeking the lowest price, we may not be the suitable match.”
Why are you affordable?
We maintain a very small overhead, allowing us to pass on cost savings directly to our clients. We also strategically manage resources and supplier relationships to secure affordable rates and minimize waste, which enables us to provide competitive pricing without compromising on quality.
How can I book a appointment?

To schedule an appointment with G1000 Home, simply follow these steps:

  1. Contact Us: Reach out to us via phoneemail, 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.

  2. 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.

  3. 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.

Where can I find out more about G1000 home?

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!

Do you guarantee your work?
Yes, we offer a guarantee on our services. We never leave any site without a positive review from our clients. Our commitment to quality means we stand behind our work and strive to exceed your expectations. We’ll work closely with you to address any concerns and ensure a positive experience. Your satisfaction is our priority, and our guarantee reflects our dedication to providing exceptional service.
How much?

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.

get a consultation with G1000 Home

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!