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What to Ask a Drywall Contractor Before Signing a Contract

Drywall finishing is one of the most skill-dependent trades in home improvement. The difference between a Level 3 and Level 5 finish is invisible to most homeowners until paint goes on the wall and every imperfection shows under side lighting. If you've ever seen a freshly painted room with visible seams, bulging joints, or uneven surfaces, that's a finishing problem -- not a paint problem. Here's how to vet a drywall contractor before they start.

8 QuestionsPrintable ChecklistAvg Cost: $300 - $3,000 per job

Questions to Ask

1Are you licensed and insured for this work?

Why It Matters

Drywall installation may require permits, especially for new construction or major renovations that involve structural changes.

Red Flag

No insurance and no willingness to provide a certificate.

Pro Tip

General liability insurance is essential. Workers' comp is required if they have employees.

2What finish level are you quoting -- Level 3, 4, or 5?

Why It Matters

Finish levels range from Level 0 (no finishing) to Level 5 (skim coat over entire surface). Most residential work requires Level 4 (standard), but areas with critical lighting or flat/matte paint need Level 5 to hide imperfections.

Red Flag

They don't know what finish levels are, or the bid doesn't specify.

Pro Tip

Level 4 is sufficient for most walls that will be textured or painted with eggshell or satin paint. Level 5 is recommended for smooth walls under flat paint, and any wall with strong side lighting like hallways.

3What taping method do you use -- paper tape or mesh tape?

Why It Matters

Paper tape is stronger and less prone to cracking at joints, especially on butt joints and inside corners. Mesh tape is faster but more likely to crack if not embedded in a strong setting compound.

Red Flag

They use only mesh tape to save time, or they can't explain the difference.

Pro Tip

Paper tape with all-purpose compound is the most reliable combination for flat joints. Mesh tape works well with hot mud (setting compound) but is more crack-prone with standard pre-mixed compound.

4How will you match the texture on my existing walls so the repair area blends in?

Why It Matters

Matching existing texture -- knockdown, orange peel, skip trowel, or smooth -- is one of the hardest skills in drywall finishing. A visible texture mismatch is often more noticeable than the original damage, and it's permanent once painted over.

Red Flag

They claim they can match any texture without looking at your walls first, or they say 'close enough' is the standard.

Pro Tip

Ask to see photos of previous texture-matching work. A skilled finisher will practice the pattern on a spare piece of drywall or cardboard before applying it to your wall, adjusting nozzle pressure and compound consistency until the match is right.

5What type of corner bead do you use, and how do you handle inside and outside corners?

Why It Matters

Corner beads protect outside corners from denting and cracking, but the wrong type or a poor installation leads to cracking, nail pops, and visible ridges. Inside corners require clean, consistent tape bedding that doesn't crack as the house settles.

Red Flag

They use only metal corner bead nailed on without compound behind it, or they don't discuss corner treatment at all.

Pro Tip

Vinyl or paper-faced composite corner bead resists denting and cracking better than bare metal. For inside corners, a corner trowel or careful hand-finishing prevents the common problem of compound buildup that looks lumpy under paint.

6What is your dust containment plan for the work area?

Why It Matters

Drywall sanding produces extremely fine particulate dust that travels through HVAC ducts, damages electronics, coats furniture, and aggravates asthma and allergies. Without containment, the dust affects every room in the house.

Red Flag

They plan to sand without any containment barriers, or they rely on a single box fan as their dust management strategy.

Pro Tip

The current standard is vacuum-attached dustless sanders combined with plastic sheeting barriers sealed at the work area perimeter. They should also cover HVAC returns in the work zone to prevent dust from circulating through your ductwork.

7What is your timeline, and when can the walls be painted?

Why It Matters

Each coat of compound needs to dry before sanding and the next coat. Rushing this process leads to shrinkage cracks and visible joints.

Red Flag

They plan to complete all coats in a single day with no drying time.

Pro Tip

Typical timeline for new drywall: Day 1 hang, Day 2 tape and first coat, Day 3 second coat, Day 4 third coat, Day 5 final sand and prime. Each day allows proper drying.

8Who is responsible for priming before paint -- you or my painter?

Why It Matters

Drywall must be primed before painting. The primer seals the paper and compound, creating a uniform surface for paint. Without primer, paint absorbs unevenly, showing every joint and repair.

Red Flag

Neither the drywall contractor nor the painter claims responsibility for priming.

Pro Tip

PVA (polyvinyl acetate) drywall primer is standard for new drywall. Clarify in both contracts who handles the primer coat to avoid gaps in responsibility.

Bonus Tips for Hiring a Drywall Contractor

  • Before final payment, inspect every wall with a handheld work light held at a low angle against the surface. This raking light reveals ridges, joint lines, and screw pops that overhead lighting hides -- and that will become glaringly obvious once paint is applied.
  • Ask whether they use setting-type compound (hot mud) for the first coat and lightweight all-purpose for finishing coats. Setting compound is stronger and shrinks less, creating a better foundation for the finish coats on top.
  • If the project involves water-damaged areas, confirm they will check for mold on studs and sheathing before covering everything with new drywall. Sealing mold behind fresh board creates a hidden problem that worsens over time.

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