Interior Painting (K02)

Interior paint transforms rooms and sets the tone for your entire home – but proper preparation, quality products, and skilled application deliver professional results that last.

This BidScope guides you through interior painting: wall and ceiling painting, trim and door painting, color consultation, specialty finishes, and preparation requirements.

Learn paint types: latex (water-based, most common, easy cleanup, low odor, durable), oil-based (traditional, smooth finish, better for trim, longer dry time, mineral spirits cleanup), and specialty paints (chalkboard, magnetic, washable, low-VOC).

Understand sheen options: flat (no gloss, hides imperfections, difficult to clean, ceilings and low-traffic walls), eggshell (slight sheen, easier to clean than flat, living rooms and bedrooms), satin (soft sheen, durable and washable, family rooms and hallways), semi-gloss (noticeable sheen, very durable, kitchens, bathrooms, trim), gloss (high shine, maximum durability, cabinets and furniture).

Master surface preparation: patch holes and cracks with spackle or joint compound, sand smooth, clean walls to remove dust and grease, prime stains and repairs (prevents bleed-through), remove outlet covers and hardware, protect floors and furniture with drop cloths, tape edges for clean lines (remove tape before paint fully dries).

Navigate primer selection: stain-blocking primer (knots, water stains, smoke damage), bonding primer (glossy surfaces, adhesion), drywall primer (seals new drywall, reduces coats needed), tinted primer (closer to finish color, better coverage).

Learn color selection: test samples on actual walls in room’s lighting (north light cool, south light warm), view at different times of day, consider room size (light colors make small rooms feel larger, dark colors cozy), flow between rooms (consistent or complementary colors), finish sample boards before painting entire room.

Understand application techniques: cut-in edges first (brush around trim, corners, ceiling), roll or spray large areas, two coats minimum for durability and color accuracy, proper technique prevents lap marks and roller marks, brush quality affects finish (cheap brushes shed bristles).

Know specialty finishes: accent walls (single wall in bold color), two-tone walls (chair rail divides colors), stripes and patterns (tape for clean lines), faux finishes (sponging, rag rolling, venetian plaster), textured paint (adds dimension).

Navigate room-specific considerations: kitchens and bathrooms need washable paint (satin or semi-gloss), moisture-resistant paint for bathrooms, ceilings typically flat white, trim and doors semi-gloss or gloss, high-traffic areas more durable sheens.

Learn color psychology and trends: blues and greens calming (bedrooms), warm colors energizing (dining, social spaces), neutral grays popular modern choice, white remains timeless, test bold colors in small areas first.

Calculate project scope: whole house interior, single room, ceiling only, trim and doors, accent walls.

Budget realistically: interior painting $2-6 per square foot depending on prep and complexity, single room $400-1,200, whole house interior $3,500-10,000+, trim and doors add $2-4 per linear foot.

This tool ensures your interior painting delivers beautiful, durable results that transform your space.

What’s Included:

• Interior painting applications (walls, ceilings, trim, doors, specialty)
• Paint types (latex, oil-based, specialty)
• Latex (water-based, most common, easy cleanup, low odor)
• Acrylic latex (most durable, washable)
• Oil-based (traditional, smooth finish, trim, longer dry)
• Alkyd (oil-based synthetic, better than traditional oil)
• Specialty paints (chalkboard, magnetic, washable, low-VOC)
• Zero-VOC paint (minimal odor, healthier)
• Sheen options (flat, eggshell, satin, semi-gloss, gloss)
• Flat (no gloss, hides imperfections, ceilings, low-traffic)
• Eggshell (slight sheen, easier clean, bedrooms)
• Satin (soft sheen, durable, family rooms, hallways)
• Semi-gloss (noticeable sheen, kitchens, baths, trim)
• Gloss (high shine, cabinets, furniture)
• Surface preparation (patch, sand, clean, prime, protect)
• Patch holes and cracks (spackle, joint compound)
• Sand smooth all surfaces
• Clean walls (remove dust, grease)
• Prime stains and repairs
• Remove outlet covers and hardware
• Drop cloths protect floors and furniture
• Tape edges for clean lines
• Primer selection by need
• Stain-blocking primer (water stains, smoke, knots)
• Bonding primer (glossy surfaces, adhesion)
• Drywall primer (seals new drywall)
• Tinted primer (better coverage, fewer coats)
• Color selection process
• Test samples on actual walls
• View in room’s natural and artificial light
• View at different times of day
• Light colors enlarge small rooms
• Dark colors create cozy feel
• Color flow between rooms
• Finish sample boards first
• Application techniques (cut-in, roll, spray)
• Cut-in edges first (brush trim, corners, ceiling)
• Roll or spray large areas
• Two coats minimum (durability, color accuracy)
• Proper technique prevents marks
• Brush quality affects finish
• Remove tape before fully dry
• Specialty finishes and techniques
• Accent walls (bold color single wall)
• Two-tone walls (chair rail divides)
• Stripes and patterns (tape for lines)
• Faux finishes (sponging, rag rolling)
• Venetian plaster
• Textured paint (adds dimension)
• Room-specific considerations
• Kitchens and bathrooms washable (satin, semi-gloss)
• Moisture-resistant paint bathrooms
• Ceilings flat white typical
• Trim and doors semi-gloss or gloss
• High-traffic areas durable sheens
• Color psychology and trends
• Blues and greens calming (bedrooms)
• Warm colors energizing (social spaces)
• Neutral grays modern popular
• White timeless
• Bold colors test small areas
• Project scope options (whole house, single room, ceiling, trim)
• Whole house interior
• Single room
• Ceiling only
• Trim and doors
• Accent walls
• Cost factors ($2-6/sf depending on prep, $400-1,200 single room, $3,500-10,000+ whole house, $2-4/lf trim)
• Finding qualified painting contractors
• Licensed and insured
• Portfolio and references
• Color consultation services
• Warranty on workmanship