Custom Home Builders in Toronto

High-Performance Homes by Avvio

Building the Future with Trusted Custom Home Builders in Toronto

Avvio Fine Homes goes well beyond building houses in Toronto that meet Ontario Building Code – we craft homes designed for the future and with construction in mind. As modern home builders, we specialize in building high performance houses, dedicated to providing a healthier quality of living than standard homes that can be enjoyed for generations. Our commitment to exceptional energy performance and enduring quality means that each house is designed as a system – planned, modeled and built based on building science principles that also enhance your quality of life. A big focus of our mission is to help address climate change and reduce air pollution. We achieve and prove this by conducting third-party EnerGuide and air tightness tests to meet Energy Star and CHBA Net Zero certification standards.

  • Net Zero Homes: Our ultimate high performance house is net zero or net zero ready. These homes produce as much energy as they consume annually, from clean renewable sources like solar panels – producing zero or low utility bills.
  • Tight Building Envelope: Using high R-value insulation materials and building a 100 year wall with supreme attention to detail, we build homes with no gaps or thermal bridges to give you year-round comfort. This is proven by independent testing for energy consumption and air tightness.
  • Energy-Efficient Systems: Replacing traditional gas furnaces, we install modern air source heat pumps, fresh air system (ERV), heat pump water heaters and drain water heat recovery – giving you complete control over air quality, temperature and humidity.
  • Custom-Build: We thoughtfully design and plan high performance custom houses, prioritizing feasible construction details – always guaranteeing high quality construction and finishes, on time and on budget.
  • Sustainable Materials:  We prioritize eco-friendly materials that are better for the environment, using renewable resources to reduce utility bills while ensuring the longevity and durability of your house.
  • Design-Build Model: Our delivery model includes everything from start to finish – delivering turnkey services. One point of contact to design, build and manage your custom home construction services in Toronto.

Anatomy of a High Performance Home

Custom Home Builders Using Building Science To Construct High Efficient Energy Star Or Net Zero Homes For Enhanced Quality Of Life

High Performance Home

Solar Panels

Harness clean renewable solar energy to power your custom house.

Energy Recovery Ventilator (ERV)

Fresh air system to improve indoor air quality and control humidity.

Air Tight Building Envelope (No Thermal Bridges)

Stop heat transfer, prevent drafts, and boost energy efficiency.

Sustainable Building Materials

High quality sustainable materials that are durable & reduce environmental impact.

Triple-Pane Windows

Reduces heat loss and noise for maximum efficiency.

Foundation and Basement Slab

Insulated, controlling moisture and radon gas for usable basements that are comfortable, healthy and safe

Water Saving Fixtures & Appliances

Reduces water consumption and utility costs.

High Performance Mechanical System

Efficient, eco-friendly heat pumps, heat pump water heaters & drain water heat recovery cut utilities.

LED Lighting

Energy-efficient lighting for long-term savings while adding zero heat to the room.

High R-Value Insulation

Keeps your home comfortable and energy-efficient.

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Why Upgrade to a Net Zero home?

Reduced Energy
Bills

Increased House Value

Save Energy & Resources

Year-Round
Comfort

Improved Air
Quality

Lower Environmental Impact

One team to manage your entire project, ensuring clear communication, less room for errors and reduces your stress. We work with you to refine your ideas and provide advice.

We know construction costs best and use our knowledge in collaboration with the design team from the start to meet your budget and get you more for your money.

The entire process is faster and more efficient from design to construction completion, for a lower cost. Be confident that the complete timeline is now controlled and scheduled accurately.

 The design-build model allows us to offer our exclusive guarantees on design, energy certifications, time, fixed price and high quality workmanship.

We act as the one source of responsibility that can see the entire process through and be accountable for the results with our Design Build custom house model.

We design your home as a system and embed building science – from the start. Planned and modeled to achieve high performance and energy certification.

A Second Generation
of Custom Home Builders in Toronto

When it comes to building a high-performance house, it’s vital to feel a strong connection with the Toronto custom home builder you’re working with. After all, you’re trusting them with one of the most significant financial and emotional investments you will make in your life.

Owners of Avvio Fine Homes (Vincent and Paul Gambino) are more than business partners, they are brothers. Being born into a custom manufacturing family, you could say design and constructing are in their blood. After developing practical skills working alongside their parents, they embarked on formal education in different yet complementary fields, which they have joined in collaboration for the last 10 years to build elegant, functional, energy-efficient homes which take into account the changing climate and future needs.

More About Us

The Ultimate Two-Brother Custom Home Contractors

Vincent

Skills in Architectural Design, Technology and Building are key to giving you the exact home you’ve always wanted — superior quality, finely crafted, and measurably energy efficient.

Paul

Business, Financial, and System skills ensure every aspect of your home’s construction runs smoothly and safely with no surprises, and finishes on time and on budget.

Proven Design-Build Process Delivering Your Dream Home
– On Time and On Budget

Avvio Fine Homes is proud to have proven consistency in delivering advanced, functional luxury, high-performance homes, on time and on budget every time. What sets us apart? We are one of the few local custom home builders in Toronto & GTA who possess both the skills and deep knowledge of building science. This enables us to design, construct and deliver a better result every time including:

Innovative Design Process

As home building contractors, we ensure you get the exact floor plan, features, and finishes you want – all delivered in a high-performance home that is measurably energy efficient and supremely comfortable all year round.

Unlike other architects who may go overboard with designs that are impractical to build, we show you the most efficient and affordable way (backed by building science) to bring your design ideas to life, including integrating home technology or building custom home.

Exceptional Quality & Workmanship

Our company build custom homes that are structurally solid, durable, flawlessly finished, and genuinely energy efficient. While other builders charge a premium for energy-efficient building materials, many don’t pay attention to detail when installing them or understand our “house as a system” methodology.

Every gap in the building envelope and thermal bridge (conductive point connecting internal structures to external structures) undermines the performance of your home, making it less comfortable, less healthy, and less energy efficient. Our skilled tradespeople are trained and supervised to ensure exceptional workmanship with minimal gaps or thermal bridges. That’s why our homes regularly receive such low air leakage test results, which means minimal wasted energy.

Planning and System

We guarantee your home is finished on time and on budget with no surprises. Before building commences, we coordinate and place the required orders for your supplies (so your first-choice selections are ready onsite at the right time) and schedule all trades (so the finest craftspeople are available when needed).

As your custom home builder, we bear all the responsibility, so your building experience will be smooth and enjoyable. With us, your home will be finished on time and on budget.

Additional Services & Delivery Models in Toronto and GTA

Whether you’re looking to build a brand-new high-performance home, renovating or extending your current home, or looking for help to manage a building project, we have the knowledge, experience, and integrity to help you achieve the exact result you want.

Construction Management

Services available if you already have design plans and need a team to manage your major renovation or custom build. This includes project management, site supervision, budgeting, quality control and more.

Home Additions

Expand upwards or outwards with our home addition services. We know what it takes to make space even with limitations, our architectural team will design with functionality for growing families in mind.

Home Renovations

We specialize in major renovations, including complete gut and demolition. With our design build team, a clean canvas is all it takes to be on your path to net zero or high efficiency home.

Other Services

We offer consulting support, (or just a second opinion) to ensure your project meets your design expectations, land development goals (such as multiplex possibilities), energy efficient standards, and is optimized to come in on time and on budget.

Choose Trusted
Custom Home Builders in Toronto Who Care

Avvio Fine Homes is proud to have partnered with discerning families to build some of the most healthy, innovative, high efficient homes in the Greater Toronto Area. As one of the top custom home builders, here are some of the reasons these homeowners entrusted us with their dream homes:

Every detail is designed to match your lifestyle, reflect your personal style, and fill you with pride.

So your home looks stunning, lasts a lifetime, and is airtight with no thermal bridges to compromise its performance or your health.

So you can be certain your home meets the highest standards of energy efficiency (and is supremely comfortable, measurably energy efficiency, and highly valued and sought after in resale).

So you can be sure there’s no unexpected costs or hidden surprises.

So you can arrange your finances (and life) knowing when your home will be ready.

That guides you from start to finish and keeps you informed so you always know what’s happening (to ensure a great experience, you’ll also receive direct access to the owners and our Project Management Platform so you can be part of your building journey).

Comprehensive warranty backed by Tarion, to cover your structure, finishes and systems, demonstrating our commitment to stand by our work — today and tomorrow.

Memberships

What Our Clients Say

Over the past 10+ years we’ve had the privilege of helping discerning Greater Toronto families get the luxurious, functional, energy-efficient home they’ve always wanted. Here’s what some of them say about their experience with our team:

We’ve had the pleasure of supplying windows and doors to Avvio Homes on multiple projects.Communication is always smooth, product requests are spec’d to exactly what is needed and the attention to detail they bring to each home makes our products shine.Paul and Vince are organized, professional, and take pride in building homes that are well designed with quality materials and workmanship.We value our collaborations with Avvio and would highly recommend them to anyone looking for a reliable, skilled, and trustworthy home builder.
Torwin Windows & Doors
15:26 03 Oct 25
I've had the opportunity to work with the Avvio crew on several projects over the last few years. The amazing team at Avvio consistently come up with modern built homes that go beyond the standard, focusing on not just the “visible” attributes but ensuring that they are at the leading edge using the latest technology in both high performance building envelopes and mechanical systems. Building better isn’t easy, but Paul & Vince have the experience and knowledge to build homes that are comfortable, secure and hit that sustainable marker for all their clients. I look forward to collaborating with Avvio on future projects. Always a pleasure!
Rick Stacey
01:05 20 Sep 25
We have been providing electrical services to Avvio for over 10 years now. We have a lot of experience working with Vincent, Paul and their team. They are very organized and professional. Their scheduling is always on time and work sites are clean and safe. Their design package includes a detailed electrical plan, making our job easier and eliminating the chance of mistakes. Decisions are made by them before we start our work so nothing is decided on the fly, which creates a smooth work environment. Vincent is on site often to keep their high standards for quality and is available for questions and inspections. All in all, it’s a great experience working with Avvio!
Lucy Guido
11:48 26 Aug 25
Avvio has been our client for many years. Their homes are well-designed and well-built, ensuring that the building envelope is air and water-tight before we start our work. Their projects are very organized and safe, and they have a stringent quality control system. Design drawings are detailed and there is rarely a change – everything is clear and communication is easy. Vincent has a lot of experience building custom homes and it is a pleasure working with him and Paul and their team.Steve DuranteArtizan Interior & Exterior Finishings Inc.
Steve Durante
11:03 19 Aug 25
It is always a pleasure working with the team at Avvio for their foundation walls. We see how well thought out their design and build process is with detailed drawings that make it easy to execute the work.Their attention to detail, high standards, and clear communication stood out throughout the project. Scheduling and coordination is smooth, and their team was on-site often, ensuring everything ran efficiently and safely.From site management to their knowledge and ability to build complex construction systems, it’s clear they are committed to building durable, high-quality homes using the latest technology.We look forward to working with them on future projects!
BAY FORMING LTD.
18:34 31 Jul 25
I’ve had the pleasure of working with Avvio Fine Homes as a designer, and it’s been a fantastic experience. Their custom home design-build process is professional and very well-organized. They provided me with a detailed budget and communication is always clear. Paul and Vince are excellent problem solvers—quick to find thoughtful solutions and maintain a positive, can-do attitude throughout. I highly recommend Avvio Homes for any new custom home projects and look forward to collaborating with them again in the future!
Bell Design Studio
18:31 08 Jul 25
Working with Avvio Fine Homes has been a consistently excellent experience. Their team brings a high level of professionalism to every project, combining innovative design with expert craftsmanship. From the initial concept to the final build, their attention to detail is second to none.Communication is always clear and timely, which makes collaboration smooth and efficient. Whether it’s a change in plans or a progress update, their commitment to good communication ensures everyone stays on the same page.
Darren Sills
15:39 18 Jun 25
We have completed several projects for Avvio Fine Homes. We make a great team because we both like to do things the right way on their beautifully designed and high-quality custom homes builds - using the latest in high-quality and high-performance materials plus meticulous workmanship with clean and safe work sites. Their drawings are detailed and clear and they have realistic schedules with Vincent available for questions, resulting in a smooth construction process. The homeowner is happy for years to come with these durable custom homes.
Justin Paull
12:58 17 Jun 25
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See the Latest Projects

Experience speaks louder than words. Browse our completed high performance custom homes and major renovations. Keeping high performance in mind without sacrificing on design or style. Get inspired for your next project.

Your Complete Guide to Designing & Building a High-Performance Home in Toronto

Building a custom home can be overwhelming without the proper information you SHOULD know about. Before you start your custom home building journey, our downloadable guides cover everything you need about the design build process, high-performance homes, building jargon, and essential checklists.

7 Things You Must Know
Before Designing a New Home:

Avoid common pitfalls and learn key factors to watch for during your home’s design and build process.

High-Performance Homes:

Learn about what makes a home energy-efficient, comfortable, and built to the highest quality and sustainability standards.

Consumer’s Guide to Builder’s Jargon:

Break down the complex language and terminology commonly used in home-building.

Pre-Start Checklist:

Get organized before starting your custom home-building journey with this handy checklist of what to consider.

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Custom Home Builder

Custom Home Builder Specializing
in Net Zero and High Efficient Homes

With the growing demand for energy efficient homes, it’s important to choose a custom home builder who has the knowledge, experience and integrity to deliver truly energy efficient homes. 

At Avvio Fine Homes, every home we build is independently tested and certified Energy Star or Net Zero, with an EnerGuide rating. We guarantee our high performance homes will show better performance and results, far better than standard builds or even other custom homes.

This means:

  • You can trust your home’s certification, ensuring it will be energy-efficient and comfortable all year round.
  • You’re paying for genuine high performance, not empty promises.

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Free Advice For Your Home

Building a custom, high-performance home is (or should be) exciting. But it can also be a nervous time. Because it involves a significant amount of (hard earned) money. Possibly more than you’ve ever spent before.


That’s why we take time to answer every question you have. And give you all the information you need to feel confident in your decisions.
We haven’t merely built 10 stunning high-performing homes over the past 10+ years.

We’ve helped these Greater Toronto families clarify and refine their vision. And bring it to life in a home that is even better than they dreamed. As local home builders in the GTA, we’d love to help you too.

Frequently Asked Questions

A net zero home is designed to produce as much energy as it uses over the course of a year. From insulation to airtightness, every element works together to reduce energy demand. With a renewable energy system in place, it keeps your utility bills low and your comfort levels high. It’s one of the most efficient choices when planning a custom home in Toronto.

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Look for a builder who’s upfront, licensed, and knows how to deliver—from planning and architectural design through to the final walkthrough. Check out past projects, ask about Tarion registration, and see how they handle communication. A builder company with strong roots in Toronto and the GTA is key.

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Timelines can shift depending on permits, design changes, and the size of the home. Generally, from breaking ground to handing over the keys, a custom home build in Toronto takes about 10 to 16 months. Your construction firm should walk you through each stage of the home building process.

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The most energy-efficient homes are built to Net Zero or Net Zero Ready standards. These homes are designed as a whole system—air-sealed, well-insulated, and powered by renewables where possible. Many of our clients opt for this approach as part of their custom home project.

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Yes, Avvio Homes is fully licensed, Tarion-registered, and carries liability insurance. You’re working with a professional custom home builder that knows what’s required to build in Toronto and the GTA.

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Custom homes give you more say—from layout and materials to energy performance and flow. Unlike cookie-cutter builds, a custom home is designed around your life and how you want to live. Every custom home project begins with your vision and ends with a home that fits.
When people ask us about cost, we always say—it depends. The price to build a custom home can vary based on location, lot conditions, the size of the home, design decisions, finish levels, and whether you’re aiming for a high-performance or Net Zero build. Typically, our projects start at around $500 per square foot, not including appliances. On top of that, there are other costs to keep in mind like permits, design fees, municipal charges, and HST. We also suggest planning for a 10% contingency. With our fixed-price contracts, we help you stay in control of your budget from the start.
Know your budget range. Understand zoning rules. And work with a builder who can guide you through architectural design, building permits, and the reality of construction in Toronto. The more planning up front, the smoother your custom home build will run.
From the first sketch to move-in day, the process includes site analysis, permits, architectural design, and construction. Avvio keeps it all under one roof, so you stay in the loop every step of the way. It’s how we run every custom home project with consistency.

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Payments are phased, tied to milestones in the project—from the start of design to key construction stages. Everything is clearly outlined before the first shovel hits the ground, giving you clarity throughout the home building process.