Home / Guides / Whole-home projects / Drywall, trim & millwork

Whole-home projects guide

Drywall, trim & millwork: how to choose

Plan drywall repairs and new finishes alongside trim and millwork choices for a clean, durable interior finish.

Lifespan, DIY and permitsDIY: moderate — simple patches and basic trim12 brands7 cost linesUpdated Nov 2026

Decide these first

  1. Is the work a small repair, full replacement, or new construction?
  2. Will the area need fire, moisture, impact, or sound control?
  3. What paint sheen, color, wallcovering, and lighting will reveal surface flaws?
  4. Are you matching existing trim or changing the profile and room style?
  5. Could leaks, pests, or older hazardous materials be behind the wall?

Specs that actually matter

TermWhat it meansLook for
Drywall finish levelFinish levels describe the amount of joint treatment and surface preparation before decoration.GA-214 Level 4 for flat paint or light texture; Level 5 for gloss, dark paint, or critical lighting.
Board typeGypsum panels are available with different properties for standard, fire-rated, moisture, and sound-control assemblies.Match board and assembly to room conditions, plans, and local code; do not substitute by color alone.
Trim material and profileMaterial and molding shape affect paintability, moisture tolerance, and how trim meets walls and floors.Check wall flatness, corner angles, finish, and moisture exposure before ordering.

Good, better, best

Good

Standard gypsum board with simple paint-grade MDF or composite base and casing.

$1.50–$3.50 per sq ft for drywall installation; trim is extra.

Better

Specified specialty board where needed, a consistent Level 4 finish, and durable wood or composite profiles.

$2–$4.50 per sq ft for drywall replacement; trim is extra.

Best

Custom millwork profiles, carefully scribed installation, and a Level 5 finish for challenging paint or light conditions.

$634–$2,268 for a typical trim-installation project; specialty work can cost more.

What it costs

ItemUnitTypical US rangeSource
Drywall installation, hung and finished
Materials and installation; price varies with area, panel type, and finish level.		sq ft$1.5 to $3.5Fixr 2025 drywall installation guide
Drywall replacement, installed
Includes removal and disposal plus new installation and finish; hidden damage can add cost.		sq ft$2 to $4.5Fixr 2025 drywall installation guide
Drywall repair
Typical professional repair range for multiple holes or cracks in one room.		project$200 to $550Fixr 2025 drywall repair guide
Trim installation
Typical installed project range; trim type, footage, preparation, and finish affect cost.		project$634 to $2,268Angi 2026 trim installation guide
MDF trim material
Material only; installation and finishing are additional.		linear ft$1 to $3.5Angi 2026 trim installation guide
PVC trim material
Material only; installation and finishing are additional.		linear ft$0.5 to $5Angi 2026 trim installation guide
Trim painting or staining
Finish work only; profile size and complexity affect cost.		linear ft$1 to $4Angi 2026 trim installation guide

Calculators

Drywall calculator

Sheets and screws for walls and ceilings.

Results

Drywall calculatorBaseboard and trim calculator

Major brands and where to buy

Links go to each manufacturer. Tier is a rough price position, not a quality score.

USGSheetrock drywall and finishing systemsValueNational GypsumGypsum board and finishing productsValueGeorgia-Pacific Building ProductsToughRock gypsum boards and panelsValueCertainTeedDrywall, finishing, and exterior trimMidArmstrong CeilingsCeiling systems and interior productsMidTrim-TexDrywall corner and finishing productsMidClarkDietrichSteel framing and drywall accessoriesMidMetrieInterior doors and architectural mouldingsMidWindsorONEPrimed wood trim and mouldingsPremiumWoodgrainMouldings, doors, and millworkPremiumAlexandria MouldingDecorative mouldings and interior trimValueVERSATEXPVC trimboards and mouldingsPremium

Retailers

The Home DepotLowe'sMenards84 LumberFerguson

Pitfalls to avoid

  • Leaving the required drywall finish level out of the written scope.
  • Specifying Level 4 under glossy or dark paint or strong side lighting.
  • Treating moisture-resistant board as a substitute for resolving leaks or condensation.
  • Ordering trim before checking wall flatness, corner angles, and actual measurements.
  • Opening older walls before considering lead paint, asbestos, pests, or hidden water damage.
  • Using fire-rated board without matching the assembly and details required by plans or code.

Questions to ask a pro

  1. What finish level is included, and how will the wall be checked under final lighting?
  2. Which panel type and assembly meet the room's code and moisture needs?
  3. Does the quote include demolition, disposal, insulation, priming, and paint?
  4. How will the trim be scribed, finished, and matched at corners and transitions?

How long it lasts

Drywall and trim can last for decades when kept dry and protected from impact; moisture problems and finish damage can shorten service life.

Can you DIY it?

moderate — simple patches and basic trim can be DIY, while ceilings, large repairs, and Level 5 finishing take skill.

Permits

Cosmetic repairs and trim rarely need permits, but structural, fire-assembly, electrical, or plumbing changes may.

Ready to hire?

Get up to 3 quotes from licensed, insured local pros.

Trusted resources

From the Journal

Sources

  1. https://www.fixr.com/costs/drywall-installation
  2. https://www.fixr.com/costs/repair-drywall
  3. https://www.angi.com/articles/how-much-does-installing-trim-cost.htm
  4. https://www.americangypsum.com/sites/default/files/2022-05/ga-214-2021_17.pdf
  5. https://www.elledecor.com/design-decorate/trends/a69545023/interior-design-trends-2026/

Get up to 3 quotes from local pros

Free, no obligation. Tell us about the project and we match you with licensed, insured pros.