Custom Home Builder · Toronto, Vaughan & Greater Toronto Area
Better Homes Begin With Better Building Science.
Custom homes designed around comfort, durability, energy performance, and the principles of Passive House — built for Ontario's climate.
Built for How a Home Should Feel
The Home as One Complete System
A high-performance home is not defined by one product or one layer of insulation. It is the result of hundreds of decisions working together.
At Berm, we consider the home as one complete system so every part of the building supports comfort, performance, and long-term durability.
Comfort
More consistent indoor temperatures, warmer interior surfaces, and fewer uncomfortable drafts.
Healthy Air
Controlled ventilation helps bring fresh filtered air into the home while removing stale indoor air and excess moisture.
Efficiency
A carefully designed building envelope reduces unnecessary heat loss and lowers the energy required to keep the home comfortable.
Durability
Proper water management, airtightness, insulation, flashing, and moisture control help protect the building for decades.
Building Science First
Performance Begins Behind the Finishes.
Some of the most important parts of a home are the parts you eventually never see.
Before drywall. Before cabinetry. Before flooring.
Berm focuses closely on the assemblies behind the finished home — from foundation connections and wall systems to windows, roofs, air barriers, insulation, and flashing.
Our objective is simple: build the enclosure correctly before covering it.
The Berm Envelope
One Continuous Protective Layer Around Your Home.
A high-performance building envelope separates the controlled indoor environment from Ontario's changing outdoor climate. At Berm, we pay particular attention to:
- Continuous Insulation — less heat loss through walls, roofs, and foundations.
- Airtight Construction — a continuous air-control layer around the building.
- Thermal-Bridge Reduction — detailing where structure could conduct heat.
- High-Performance Windows & Doors — installed as part of the envelope, not openings in the wall.
- Water & Moisture Management — drainage planes, flashing, membranes, and transitions done right.
Passive House Principles
Proven Principles. Applied Thoughtfully.
Berm integrates Passive House principles into the way we think about custom home construction.
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01
Continuous Insulation
Stable interior temperatures throughout the seasons.
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03
High-Performance Windows & Doors
Comfort next to the glass.
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04
Reduced Thermal Bridging
Fewer heat leaks at connections.
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02
Airtight Construction
Limits uncontrolled air leakage and improves comfort.
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05
Balanced Ventilation
Fresh air with heat recovery.
Passive House principles applied to better custom homes.
Details Matter
Performance Is Won at the Connections.
A wall can contain excellent insulation and still underperform if the transitions are poorly detailed. That is why Berm pays close attention to locations such as:
- Window-to-wall connections
- Door thresholds
- Foundation-to-wall transitions
- Wall-to-roof connections
- Balconies and structural penetrations
- Cladding attachments
- Air-barrier transitions
- Flashing and drainage details
These small areas can have a major effect on airtightness, moisture control, thermal bridging, and long-term durability.
The details you cannot see are often the details that matter most.
Windows as Part of the Envelope
A High-Performance Window Is Only as Good as Its Installation.
Windows are among the most technically important components of the building envelope. Berm considers the complete connection between the window and wall, including:
This approach helps reduce drafts, condensation risk, heat loss, and thermal bridging around the opening.
Built for Ontario
Designed Around Our Climate.
Ontario homes experience cold winters, humid summers, rain, snow, freeze-thaw cycles, and large seasonal temperature changes. A durable home must respond to all of them.
Berm combines building-science principles with practical construction experience to design assemblies that manage:
The result is a home designed not only for the day it is completed — but for the decades that follow.
Craftsmanship With Purpose
Precision Is Part of Performance.
High-performance construction requires more than specifying premium materials. It requires careful execution.
Membranes must connect. Insulation must remain continuous. Windows must be properly supported and sealed. Flashing must direct water outward. Penetrations must be carefully detailed.
At Berm, craftsmanship is not only about what looks beautiful. It is about building every layer with purpose.
The Berm Approach
From Design Intent to Built Performance.
Understand
We begin with your goals, lifestyle, site, architecture, comfort expectations, and performance objectives.
Plan
Critical building-envelope assemblies and transitions are considered before construction begins.
Coordinate
Structure, insulation, windows, mechanical systems, membranes, and exterior finishes are reviewed as interconnected systems.
Build Carefully
Construction focuses on workmanship, sequencing, airtightness, water management, and thermal continuity.
Verify
Where appropriate, performance can be supported through inspections, airtightness testing, commissioning, and quality-control reviews.
More Than Energy Efficiency
A Better Home Is About How You Experience It.
The goal is not simply to reduce an energy bill.
- It is waking up beside a window without feeling a cold draft.
- It is having more consistent temperatures from room to room.
- It is enjoying fresh air without opening a window in the middle of winter.
- It is knowing that the walls surrounding your family have been carefully designed to manage heat, air, and moisture.
That is what high-performance construction should deliver.
Custom Homes. Built Differently.
No Compromise Between Architecture, Craftsmanship, Comfort, and Performance.
We believe homeowners should not have to choose between architecture, craftsmanship, comfort, and performance. Berm brings these priorities together.
Thoughtful Design
Building Science
Careful Craftsmanship
Lasting Performance
Start a Conversation
Tell Us About Your Project
Planning a modern custom home, a high-performance residence, or a home incorporating Passive House principles? Tell us where you're building and what you're planning — we'll set up a consultation.
Toronto · York Region · Peel · Halton · Durham · Simcoe
Vaughan, ON Canada L4K 1Z8
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