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Inside the 13 Weeks: A Week-by-Week Basement Build Timeline

By Peggy Malinowski · December 4, 2025

A Calgary basement mid-build, showing the construction stages of a 13-week development.

A week-by-week look inside a 13-week basement build in Calgary — what happens each stage, trade by trade, from permits to the final walkthrough.

A typical ReImagine basement development runs on a 13-week timeline, moving stage by stage from framing through the final walkthrough — and it's backed by a completion guarantee: if we run past 13 weeks, you get a $500-per-week credit. Most projects start 4–6 weeks after signing, once the design is finalized and permits are in hand. Here's what happens each stage of the build, trade by trade. (This is a typical flow; exact timing varies by project size and scope, and your dates are confirmed when you book.)

Before week 1: design and permits

The build doesn't start cold. Ahead of the first day on site, we finalize your design and pull the required permits. This is why a project typically begins 4–6 weeks out from signing — the paperwork and planning happen first so construction runs without stopping. For how a range becomes a locked number, see what it costs to finish a basement in Calgary.

Early stage: framing

The first stretch is framing. Interior walls go up, and your basement stops being lines on a plan and becomes actual rooms you can walk through. Framing establishes every doorway, closet, and bathroom footprint, so it's where the layout becomes real.

Rough-in stage: electrical, plumbing, HVAC

With walls framed, the trades install everything that lives inside the walls before they're closed:

Inspection checkpoints

Before anything gets covered up, the City inspects the framing and the rough-ins. These checkpoints are built into the schedule on purpose — they're how you know the hidden work was done to code. Passing them is what lets the build move forward to insulation.

Mid stage: insulation and drywall

Insulation goes in, then drywall — and this is the week the basement suddenly looks like a home. Sheets go up on every wall and ceiling, rooms take on their real shape, and the raw construction feel disappears. Drywall is followed by taping, mudding, sanding, and paint.

Late stage: flooring, trim, and fixtures

The back half of the build is the satisfying part, as finishes land in sequence:

Final week: inspection and walkthrough

A final inspection confirms the completed work meets code, and we do a walkthrough with you to check every detail before handover. Then the space is yours — covered by a comprehensive 5-year warranty. See the full journey on our process page.

Why the schedule holds

Thirteen weeks only works if each trade is ready the moment the last one finishes. We sequence the whole project up front — framing into rough-ins, inspections into insulation, drywall into finishes — so there are no gaps waiting on a trade. That coordination is what turns a guarantee into a real finish date. For the bigger-picture answer, read how long it takes to finish a basement.

How long does it take to build a basement in Calgary?

A typical development runs on a 13-week timeline once construction starts, with most projects beginning 4–6 weeks after signing. We back the 13 weeks with a guarantee — a $500-per-week credit if we run late. Exact timing depends on the size and scope of your project.

What happens first in a basement build?

Design and permits come before any on-site work, which is why projects usually start 4–6 weeks out. On site, framing is first, followed by electrical, plumbing, and HVAC rough-ins.

Why are there inspections partway through?

The City inspects the framing and rough-ins before they're covered by insulation and drywall. These checkpoints confirm the hidden work is built to code — they're a safeguard, not a delay.

What does the 13-week guarantee mean?

If your build runs past 13 weeks, you receive a $500-per-week credit. It reflects how tightly we schedule each stage so trades hand off without gaps.

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