House Rebuild Timeline: What Happens After Framing?

One of the most common questions homeowners ask during a rebuild is:

"What's happening at my house today?"

After the framing is complete, it often looks like progress has slowed down. In reality, some of the most important work is happening behind the walls.

Understanding the construction timeline helps you know what to expect, avoid unnecessary delays, and communicate better with your builder.

This guide explains the typical rough-in sequence used for custom homes and rebuild projects throughout Toronto and the GTA.

Why the Rough-In Stage Is So Important

Before drywall can be installed, every major mechanical system must be completed and inspected.

This includes:

HVAC ductwork
Plumbing pipes
Electrical wiring
Ventilation systems
Gas piping (if applicable)
Low-voltage wiring

Once drywall is installed, accessing these systems becomes expensive and time-consuming. That's why rough-ins must be completed correctly the first time.

Step 1 – Framing

Everything begins with the structural framing.

At this stage, contractors build:

Exterior walls
Interior walls
Floor systems
Roof structure
Window and door openings

Once framing is complete, the house finally has its shape.

Step 2 – HVAC Rough-In

The HVAC contractor is usually one of the first trades to enter after framing.

Typical work includes:

Main supply ducts
Return air ducts
HRV/ERV ductwork
Bathroom exhaust ducts
Kitchen exhaust routing
Dryer vent
Furnace location
Air conditioning refrigerant lines
Gas piping (where required)

Because HVAC ducts are the largest mechanical components inside the walls and ceilings, they are installed before many other trades.

Step 3 – Plumbing Rough-In

After the HVAC layout is established, plumbers install:

Drain pipes
Water supply lines
Vent stacks
Shower drains
Bathtub plumbing
Kitchen plumbing
Laundry connections
Future basement plumbing

Large drain pipes require careful routing through the framing, making this stage critical before electrical wiring begins.

Step 4 – Electrical Rough-In

Once HVAC and plumbing are mostly complete, electricians install:

Electrical wiring
Receptacles
Switch locations
Lighting circuits
Smoke detectors
Electrical panel connections
EV charger wiring
Future appliance circuits

They coordinate with the HVAC and plumbing systems to avoid conflicts inside walls and ceilings.

Step 5 – Low Voltage Installation

Many modern homes also include:

Internet cabling
Security systems
Doorbell cameras
Speaker wiring
Smart home automation
Network equipment

Installing these cables before drywall saves significant labour later.

Step 6 – City Rough-In Inspections

Before insulation can begin, municipal inspectors verify that all rough-in work complies with the Ontario Building Code.

Typical inspections include:

Framing inspection
HVAC inspection
Plumbing inspection
Electrical inspection
Gas inspection (if required)

Only after passing these inspections can construction move forward.

Step 7 – Insulation

Once the inspections are approved, insulation crews install:

Exterior wall insulation
Ceiling insulation
Basement insulation
Soundproof insulation between rooms
Fire-rated insulation where required

Proper insulation improves comfort and energy efficiency for decades.

Step 8 – Vapour Barrier

A vapour barrier is installed over the insulation to help prevent moisture from entering the wall assembly.

This is especially important in Canada's cold climate.

Step 9 – Drywall Installation

Now the house begins to look like a finished home.

Drywall crews:

Hang drywall sheets
Tape joints
Apply compound
Sand surfaces
Prepare walls for painting

At this stage, homeowners often notice dramatic visual progress.

Step 10 – Finishing Stage

After drywall comes the finishing work:

Flooring
Interior doors
Trim
Kitchen cabinets
Bathroom vanities
Painting
Stair railings
Lighting fixtures
Plumbing fixtures

Step 11 – HVAC Final Installation

Near the end of construction, the HVAC contractor returns to install:

Supply registers
Return grilles
Thermostat
HRV controls
Air filters
Final equipment connections
Air balancing
System commissioning

This ensures every room receives proper airflow and comfortable temperatures.

Typical House Rebuild Timeline

Stage	Work
1	Foundation
2	Framing
3	HVAC Rough-In
4	Plumbing Rough-In
5	Electrical Rough-In
6	Low Voltage
7	City Inspections
8	Insulation
9	Vapour Barrier
10	Drywall
11	Flooring & Interior Finishes
12	HVAC Final Installation
13	Final Inspection
14	Move-In

Common Questions

Why does HVAC usually come before plumbing?

HVAC ductwork is often the largest system inside the house. Installing it first gives plumbers and electricians more flexibility when routing their systems.

Can plumbing and electrical happen at the same time?

Yes. On larger projects, different crews often work simultaneously while coordinating their layouts.

Why can't drywall be installed immediately after framing?

The walls must first contain all mechanical systems and pass municipal inspections.

How long does the rough-in stage usually take?

For an average custom home in Toronto, the complete rough-in process typically takes several weeks, depending on the project's size, trade scheduling, and inspection timelines.

Service Areas

Reno Compass proudly serves homeowners across:

Toronto
Markham
Richmond Hill
Vaughan
North York
Scarborough
Mississauga
Etobicoke
Brampton
Milton

Contact Reno Compass

If you're planning a house rebuild, custom home, home addition, whole home renovation, basement renovation, kitchen renovation, commercial renovation, or need assistance with Building Permit applications, Reno Compass provides end-to-end design, permit, and construction solutions throughout the Greater Toronto Area.

Our experienced team coordinates every stage—from framing and rough-ins to final finishes—so your project stays on schedule and meets Ontario Building Code requirements.

House Rebuild Timeline: What Happens After Framing? A Step-by-Step Guide to HVAC, Plumbing & Electrical Rough-Ins