Water damage need drywall installation?

Basement Water Damage? Here is the Real Cost of Drywall Repair

Hiring a drywall contractor to install drywall in your basement due to water damaged drywall is similar to paying a mechanic to fix a car after an accident; it addresses the damage and restores functionality. However, the overall cost can vary significantly based on several factors.

⭐⭐⭐⭐⭐ Top Rated in Mississauga

Water damaged drywall with black mold
Black mold in the corner of room wall

1. The Extent of the Damage

If the water leak has caused extensive damage to the structure or if mold remediation is necessary, this could increase your expenses. Contractors typically assess the area to evaluate how much drywall needs to be replaced and whether additional treatments are required.

⚠️ The “Hidden Danger” Warning:
Water damage isn’t just about wet drywall—it’s about Mold & Rot.

If you patch the wall without properly drying the studs and removing the mold, the problem will return within months. We don’t just patch; we restore.

Watch: Why professional taping creates a seamless, invisible repair.
Close up of extensive mold growth on basement drywall
Black mold can be hazardous

2. Materials & Location

Standard drywall is generally less expensive, while moisture-resistant (Green Board) or fire-rated options cost more but provide better durability for basements.

Overall, the average cost for hiring a contractor to install drywall in a basement can range from $1.50 to $3.00 per square foot for large volume jobs. However, smaller repair jobs (like fixing a leak) are usually priced by the project.

Contractor lifting a large sheet of drywall for installation
Contractor installing a large piece of drywall during a kitchen remodel.

Real Life Example: Fixing a Leaky Window Wall

Let’s look at a real scenario: Your basement window leaked, destroying 64 ft of insulation and two sheets of drywall.

  1. Demolition (2 Hours): We protect your floors, remove the wet drywall and soggy insulation, and bag the debris.
  2. Sourcing (3-4 Hours): We purchase specific moisture-resistant drywall, insulation, vapor barrier, and tape.
  3. Installation (2 Hours): We install the new insulation, vapor barrier, and screw the drywall to the studs.
  4. Taping & Plastering (3 Hours): We apply “Sheetrock 90” (a quick-set compound) and use Fiber tape for strength.

The Finishing Touches

After the first coat dries, we apply a second and third coat, “tapering” the seam wide so it blends perfectly with your wall. Finally, we sand, prime, and paint.

Professional drywall taper applying compound to wall seams
Plaster man doing drywall repair

The Bottom Line: What Should Drywall Repair Cost in Mississauga?

This entire process takes approximately 18 to 20 hours for a professional to do correctly.

  • Estimated Labor: ~$720 (Based on ~18 hours of skilled work)
  • Estimated Materials: ~$240 – $300 (Drywall, insulation, mud, paint, primer)
  • TOTAL ESTIMATED COST: ~$960.00

If you find a quote significantly lower than this, be careful—they may be skipping the mold removal or using cheap materials. Investing in an experienced professional saves you from future repairs and ensures your basement stays dry and beautiful.

Ready to fix that leak for good?