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From the first conversation to handing over the keys, DeCarli Contractors manages every aspect of
Your custom home is built with precision, transparency, and genuine care for your vision.
From your initial concept to detailed architectural plans, we work with BCIN-certified designers and your preferred architect to bring your vision to life — including 3D modeling and interior rendering.
Unlike most builders who give estimates, DeCarli provides a detailed fixed-price quotation with 300+ line items. The price you’re quoted is the price you pay — full stop. No hidden costs, no surprises.
We handle all permitting and regulatory requirements in Midland, Penetanguishene, Tiny, Tay, Georgian Bay, and Severn Townships. Our deep local knowledge ensures smooth, efficient approvals.
Once we start your build, we’re there every workday until completion. Our skilled carpenters and tradespeople adhere to the highest standards, with weekly progress updates and open communication.
Our in-house interior design firm, Rêve, is available to help you select finishes, fixtures, and materials. From kitchen cabinetry to landscaping, every detail is handled with meticulous care.
Our commitment doesn’t end at handover. A full one-year inspection is standard, and we’re always available for questions. DeCarli holds a spotless no-warranty-claim record since 2003.
We respond within 1 business day — no pressure, no obligation.
We produce a detailed 300+ line-item fixed-price quotation. Unlike estimates, this is the actual price you pay. Period. No budget overruns, no financial stress.
We build realistic construction schedules and stick to them. Once we start your project, we’re on-site every workday until it’s complete — no disappearing acts.
Weekly progress updates, on-site visits, phone calls, and video walk-throughs. You’re always informed. John DeCarli personally picks up the phone.
Deep knowledge of Georgian Bay zoning, local building departments, and seasonal considerations. We navigate the regulatory landscape so you don’t have to.
From permits and design to landscaping, docks, and driveways — we handle everything. One point of contact, one accountable team, zero coordination headaches.
Registered with Tarion (Reg. #36161), your new home is protected by Ontario’s statutory warranty. And with zero warranty claims since 2003, our track record speaks for itself.
What Our Clients Say
Posted on Randy PostTrustindex verifies that the original source of the review is Google. DeCarli Contractors have been our go-to specialists from day one - whether a small job such as exterior painting or larger jobs such as new hardwood flooring, refinishing the basement living spaces, replacing all interior doors and trim etc. - all projects were completed by John and his team in a professional and timely manner - you can depend on DeCarli Contractors to finish the job to your satisfaction and that is why they are the only contractor we have absolute faith in Josh and Randy PostPosted on Gary BeutlerTrustindex verifies that the original source of the review is Google. John and the whole team at DeCarli Contractors are great! I've worked with John on numerous projects over the last 10 years and I've always been impressed with not only his teams workmanship but also how pleased his customers are with his teams work, every time. I've used DeCarli Contractors at our house a couple of times and really appreciate their attention to detail, timeliness and transparency throughout every project. I wouldn't use or recommend anyone else.Posted on Tom CowleyTrustindex verifies that the original source of the review is Google. We have been utilizing the services of DeCarli Contracting for over 15 years. During that time they have undertaken a variety of projects large and small, including a roof extension, a dock and deck replacement, a cold storage room renovation and a host of other projects. All projects have been completed timely, with the highest quality of materials and workmanship, and within budget. John's team are skilled tradespersons delivering professional quality work. John is innovative in his approach to situations and is easily reachable to discuss and resolve any related issues if they may arise. Tom and Gillian CowleyPosted on Mark GordonTrustindex verifies that the original source of the review is Google. We have never worked with a better contractor team. John and his team completed a major renovation on our entire cottage during 2022-2023. The organization and scheduling of all the work and subcontractors was efficient and timely. The quality of the work was first class, including improving or re-doing work where we were happy as clients, but John wasn’t satisfied as the contractor. The attention to detail and desire for perfection was impressive and comforting. John and team often recommended cost saving measures, but also respectfully suggested appropriate upgrades and ideas that added tremendous value and utility to our project. John’s accounting and reporting on all financial matters was also comforting – timely spreadsheets detailed with labour, materials and all associated invoices and other relevant backup. Finally, following project completion he has been attentive and responsive to follow-ups to ensure that we are thrilled with our new cottage. We would not work with a contractor other than John.Posted on Gord McKayTrustindex verifies that the original source of the review is Google. We have been customers of DeCarli Contractors for more than a decade. As opposed to a major build, we have invited them to our home for many smaller projects - to build a wooden deck and gazebo on our waterfront; to rebuild a second story balcony; a full bathroom redesign and build; and most recently to install a complete wall-to-wall window unit in our great room. But the project that really sold me on their commitment to quality and care was the installation of our poured concrete patio. The original pour had some minor color variances that may have faded over time. As opposed to advising us to "live with it", the DeCarli team on their own initiative decided it was not good enough, removed the first patio and replaced it - all at their own expense. Can't say enough about the DeCarli team. Gord McKayPosted on Wendy GilmourTrustindex verifies that the original source of the review is Google. John and his crew did a very extensive renovation on our lake home in the Muskokas during Covid. Not an ideal time to renovate for sure but we were already into when the pandemic started. While we had many supply chain issues John and his team rose to the occasion time and time again. Our place is fabulous. We’ve recommended them to close friends on our lake and they did a fabulous job there as well. DeCarli Contractors do good work and more importantly will always make right any issues ongoingPosted on Ronald CraneTrustindex verifies that the original source of the review is Google. DeCarli contractors have done several additions and renovations for us over the years. They are a pleasure to deal with and do top notch professional work. I have no reservations about recommending them.Posted on Rick GeminTrustindex verifies that the original source of the review is Google. Excellent experience working with John DeCarli. He is very professional, honest, and trustworthy and was very generous with his time for our project. What started out as a discussion about a minor renovation evolved into basically a new build cottage. The quality of work is excellent, and all of the trades used by DeCarli were really professional. I would definitely recommend DeCarli Contractors.Posted on BC ROOFING & RENOVATIONS Brian CooperTrustindex verifies that the original source of the review is Google. Load more
We’ve refined our process over 20+ years to give you one thing: predictability.
A clear path from first conversation to keys in hand.
We meet in person to understand your vision, answer your questions, and determine if we’re the right fit for your project and budget.
We provide a well-contemplated estimate based on your concept, so you understand where construction costs come from before committing.
Our BCIN-certified designers create construction plans using 3D modeling and interior rendering, with curated finish options tailored to your taste.
A 300+ line-item fixed-price quotation covering your entire build — from the first shovel to the last drop of paint. The price you see is the price you pay.
We build a realistic timeline, booking trades and ordering materials so your project stays on track from day one.
We’re on-site every workday until your home is complete. A final walkthrough ensures every detail meets your expectations before you receive your keys.
What does a “fixed-price quotation” actually mean?
Unlike a builder’s estimate (an educated guess), our fixed-price quotation is a detailed 300+ line-item document covering every aspect of your build. Assuming no changes are made during construction, this is the exact price you will pay. No surprises, no overruns.
What areas do you build in?
We build throughout the South Georgian Bay area, including Midland, Penetanguishene, Tiny Township, Tay Township, Georgian Bay Township, and Severn Township. We have deep knowledge of local zoning and building regulations in all these areas.
I’m from the GTA — can you manage the build while I’m away?
Absolutely. Many of our clients are GTA-based. We provide weekly progress updates, video walk-throughs, and are always available by phone. John DeCarli personally picks up the phone — you’ll never be left wondering about the status of your build.
Do I need to have plans before contacting you?
Not at all. Many clients come to us with just an idea. We can help you develop your concept, connect you with architects and designers, and guide you through the entire planning process from the very beginning.
How long does a custom home build typically take?
Build timelines vary depending on the size and complexity of the home, permitting, and seasonal factors. We provide a realistic construction schedule upfront and commit to it. We’d rather you be pleasantly surprised by an early completion than frustrated by delays.
What is Tarion and why does it matter?
Tarion is Ontario’s new home warranty program. As a Tarion-registered builder (Reg. #36161), your new home is protected by Ontario’s statutory warranty — covering workmanship, materials, and structural defects. DeCarli has maintained a spotless zero-warranty-claim record since 2003.