New Construction · 07 of 08
House Additions
Framing room, siding and vertical additions that integrate with existing homes while supporting new layouts, structural changes, and expanded living space.
01 · The Service
New structure tied into existing with no room for error.
House additions are structurally unforgiving. You are connecting new lumber to old, tying into a foundation that was poured years or decades ago, and matching floor heights, ceiling lines, and wall planes that were never designed with an addition in mind. Most framing mistakes on addition projects happen in the first hour — when a framer decides to assume rather than measure.
We do not assume. Before a single piece of new lumber is cut, we survey the existing structure. We measure the floor heights, check the walls for plumb, and identify where the existing building is out of level. We plan the integration from that reality — not from what the drawings assume the existing conditions to be.
The goal is a seamless transition. When the drywall and finishes go on, the addition should read as part of the original house — not as something bolted onto it. That outcome requires precision from the first measurement and careful execution at every connection point where old structure meets new.
We work on rear extensions, second-storey additions, side additions, and bump-outs across the GTA. We coordinate with your structural engineer on the load path from new to old, manage every connection point where the buildings meet, and hand off the frame inspection-ready and square.
At a Glance
Project Type
Residential Additions
Typical Scale
200 – 2,000 sq ft Addition
Coverage Area
Toronto & GTA
Addition Types
Rear, Side, Second Storey, Bump-Out
Inspection Record
100% First-Pass Rate
02 · Scope of Work
What's included.
Drawing Review
Existing structure survey before any new framing begins — floor heights, wall plumb, and foundation conditions measured and documented.
Foundation Framing
Foundation interface and new floor framing established to match existing floor heights — transition between old and new confirmed level before walls go up.
Floor Systems
New exterior and interior wall framing tied into the existing structure at every connection point — bearing conditions and load paths coordinated with the engineer.
Wall Framing
Roof tie-in framed to connect new roof structure to the existing roofline without compromising the weather envelope or structural continuity of the original building.
Roof Structure
LVL beam and header installations where the addition’s load path requires engineered lumber — sized and positioned per your structural engineer’s drawings.
Structural Steel Integration
Exterior sheathing installed and nailed to shear schedules — wall and roof planes ready for the building envelope trades.
Sheathing
All connection points between existing and new structure executed to the structural drawings — fastener type, bearing lengths, and tie-down details all followed precisely.
Inspection Hand-off
Structural inspections coordinated at each phase — foundation interface, floor framing, wall framing, and roof tie-in all signed off before we leave.
Site Clean-up
All lumber drops and site waste removed before we leave. Clean hand-off to roofing, cladding, and interior finish trades.
03 · How It Works
Our process.
01
Existing Structure Survey & Drawing Review
We review your architectural and structural drawings and, where needed, visit the site to assess existing conditions before we quote. Floor heights, wall plumb, and foundation interface are all measured and factored into our scope before we commit to a number.
02
Estimate & Integration Plan
You receive a clear scope and price that addresses every connection point between old and new — floor heights, wall ties, roof interface, and foundation. No approximations, no allowances that grow after we start.
03
Precision Integration Framing
We frame the addition from the foundation interface up — floor system, walls, and roof — with every connection to the existing structure executed precisely. Where existing conditions require adjustment, we address it in the frame, not by asking the finish trades to work around it.
04
Inspection & Hand-off
We coordinate structural inspections at each framing phase. When the addition is complete, every connection is signed off, the site is clean, and the frame is handed off ready for roofing, cladding, and interior trades to begin.