Residential New Builds
Crafting custom homes built to last generations — with Tarion Warranty protection, OBC compliance, and unmatched craftsmanship.
Building Homes That Reflect Your Vision
At MJ Ontario Constructions, we provide complete new-build solutions for custom homes across Ontario. Every home we build is covered under the Tarion Warranty, constructed to meet or exceed the Ontario Building Code (OBC), and delivered under the regulatory standards set by the Home Construction Regulatory Authority (HCRA). Our goal is simple — to build homes that combine timeless design, energy efficiency, and long-term structural integrity.
Our Homebuilding Process
From concept to keys — a seamless homebuilding journey built on craftsmanship, care, and trust.
1) Excavation & Site Preparation
We begin with grading, trenching, and site leveling, ensuring a solid foundation for your home with proper drainage and soil compaction.
2) Foundation & Footings
Concrete forming, waterproofing, and structural reinforcement — built to OBC standards for stability and longevity.
3) Framing
Precision framing for floors, walls, and roofing systems to ensure structural accuracy and a perfect fit for every design element.
4) Mechanical Rough-Ins
Installation of plumbing, HVAC, and electrical systems — all inspected and approved per OBC and HCRA standards.
5) Insulation & Drywall
Energy-efficient insulation, drywall installation, and air-sealing techniques to ensure comfort and energy savings year-round.
6) Interior Finishing
Cabinetry, flooring, painting, and trim — all crafted with attention to detail and personalized to your style and preferences.
7) Exterior Finishes
Roofing, siding, masonry, and landscaping that elevate your home’s curb appeal and long-term durability.
8) Final Inspection & Handover
We conduct detailed inspections and Tarion-certified walkthroughs before your keys are handed over.
Custom Homes, Thoughtfully Designed
We collaborate closely with architects, engineers, and interior designers to bring your ideas to life. From modern open-concept layouts to timeless estates, every detail is designed for elegance and comfort.
- Luxury Custom Homes & Multi-Unit Developments
- Architectural & Engineering Coordination
- Smart Home & Energy-Efficient Integration
- Comprehensive Project Management
- Landscaping & Exterior Finishing
Why Build with MJ Ontario Constructions
We combine technical excellence with a homeowner-first approach. Our team ensures every new build meets strict quality, safety, and aesthetic benchmarks — while delivering peace of mind at every step.
Tarion Warranty Protection
OBC Compliance
HCRA-Licensed Builder
Dedicated Site Supervisors
Transparent Budgeting
Ready to Build Your Dream Home?
Let’s turn your vision into a home built to last — crafted with precision, passion, and purpose.
Request a Free Estimate View Our Work
Manjeet did our new vinyl flooring and handrails plus a deck for the stairs. He did an amazing job. He is good at communication and prompt in answering our questions. Got the work done quick. Would recommend him 100%
Sharing my recent experience with MJ Ontario Constructions Inc We recently hired Manjeet and his team for remodeling our basement along with setting up a kitchen. I couldn't be happier with the results!From the initial design consultation to the final installation, their professionalism and attention to detail were exceptional. Manjeet is extremely humble and approachable, and he offered creative suggestions while always keeping our budget in mind. The quality of workmanship is excellent, and everything looks amazing.I highly recommend MJ Ontario Constructions Inc to anyone looking for a seamless and high-quality construction and renovation work.
Installed a shower as I requested and on the agreed price and timeframe I am a happy customer they did a great job! Well done!
I recently had the pleasure of working with MJ Ontario Constructions to create a basement ADU (added a full kitchen, a new bedroom, and fire separation drywalls) in Ontario, and I couldn't be more satisfied with the experience and the outcome. From start to finish, Manjeet was a fantastic person to work with. He provided fair quotes and was incredibly flexible throughout the entire project.What stood out the most was his ability to listen to our needs, keep our budget in mind and suggest only what was absolutely required without cutting any corners. This honesty and reliability made the entire process stress-free. Manjeet also has a strong knowledge of the Ontario Building Code, which proved invaluable. His expertise helped us save a significant amount of money by demonstrating relevant OBC guidelines to the city's building official, which avoided the need to remove bathroom walls.We had pulled a permit for the basement ADU, and Manjeet took charge of scheduling inspections and worked seamlessly with the City of Windsor inspectors, ensuring that all inspections were passed without any issues. He interacted with the city several times regarding the permit, making sure that only the necessary work was done and that it was done correctly. He remained committed and focused until the very end, accommodating city inspection comments patiently until we received our occupancy permit.Moreover, I have referred Manjeet to three of my friends, and each one of them has been just as happy with his work as I am. This consistency in delivering exceptional service speaks volumes about his professionalism and dedication. He also made sure to engage the right licensed trades for electrical, plumbing, and other critical work, ensuring everything was done to the highest standard.A big shoutout to his crew as well, who were professional, skilled, and hardworking. They showed up on time, were respectful of our home, and contributed significantly to the success of the project.Overall, I highly recommend Manjeet and his team at MJ Ontario Constructions for any construction project. Their professionalism, expertise, and dedication are unmatched. Thank you for making our basement ADU project a success!
Manjeeth is committed person, he stick to his words, I got my work done on time which helps me to move in on scheduled date.
Manjeet and his team did a great job for our house. We wanted to get few issues fixed with no time. Have approached many contractors, but Manjeet was very friendly, helpful and importantly did the work timely. I would recommend MJ Ontario Construction. Thank you.
MJ was awesome to deal with. Very professional and great quality of work done. My basement was fully renovated including the entrance and the workmanship was the best you can get. I would definitely recommend this business to my friends and family. I was only recommended the work that was needed for my basement to look updated and it was completed in a very timely manner. They even helped me to move the heavy furniture aside which was a big relief.
⭐⭐⭐⭐⭐I cannot speak highly enough of the exceptional service and craftsmanship provided by this construction company. From start to finish, their team exhibited professionalism, expertise, and attention to detail that surpassed all expectations. Our project was completed on time, within budget, and the results are simply outstanding. I wholeheartedly recommend them to anyone seeking top-notch construction services.
I contracted MJ Ontario Construction for significant home renovations. The team completely transformed the space - I was extremely impressed with the quality of work, craftsmanship, and ease of communication. Manjeet was always pleasant to deal with and accommodated my requests wherever possible. I will certainly be working with him again on future renovation projects. I highly recommend MJ Ontario Construction!
I first want to say after calling every contractor in Windsor and surround area MJ construction was the cheapest rates, him and his team built me a custom pantry, which was the best quality I have ever seen. His professionalism and honesty along with his quality workmanship is what made me want him to do further work on my home. Want to say you won’t be disappointed hiring this company, I promise!Thanks again from Amanda and Bradley🙏🏼
Frequently Asked Questions
Do all new homes come with a Tarion Warranty?
Yes. Every new build completed by MJ Ontario Constructions is registered with Tarion and comes with a full warranty, ensuring that your investment is protected under Ontario’s official homeowner protection program.
Are your homes built according to the Ontario Building Code?
Absolutely. All our residential projects meet or exceed the Ontario Building Code (OBC) standards, following strict structural, mechanical, and safety requirements. We also comply with all HCRA and municipal regulations.
Can I customize my home design?
Yes. We offer full customization options, including architectural design, layout adjustments, materials, finishes, and smart home integrations to reflect your lifestyle and preferences.
How long does a typical new build take to complete?
The average project duration ranges from 4 to 6 months depending on the size, design complexity, and municipal permitting timelines. We provide detailed schedules during the planning phase to maintain transparency.
What is included in your new build services?
Our turnkey service includes everything from excavation and foundation to final finishes and inspections — site prep, structure, mechanicals, interiors, and landscaping. Each stage is handled by our in-house experts and overseen by project managers.
Do you assist with permits and approvals?
Yes. We handle all aspects of municipal permitting, zoning, and code compliance. Our team ensures a smooth process so you can focus on the design and planning of your new home.
Do you offer energy-efficient and smart home features?
Yes. We integrate energy-efficient materials, smart home automation, and eco-friendly construction practices into our builds, ensuring long-term sustainability and reduced operating costs.
Can MJ Ontario Constructions work with my architect or designer?
Absolutely. We frequently collaborate with client-appointed architects, designers, and engineers to maintain seamless communication and bring your exact vision to life.
How do you ensure quality control?
Our in-house team conducts routine inspections throughout each project. We only work with trusted trades and suppliers who meet our standards for safety, performance, and finish quality.
Do you provide post-construction support or maintenance?
Yes. After completion, our team offers post-construction support and guidance under Tarion Warranty coverage to address any questions or adjustments needed once you move in.
- 1-519-300-5381
- info@mjoc.ca
- 4585 Essex County Rd 46 Unit 201, Maidstone, ON N0R 1K0
- Fully Licensed by HCRA – Your Trusted Builder