Cost Calculator

Interior Painting Calculator

Interior Painting Calculator - Estimate costs for painting walls, ceilings, trim, doors, and baseboards in your home. Input room dimensions, number of rooms, ceiling height, paint quality (budget, standard, premium), wall preparation needs, and trim painting requirements. Calculator provides itemized breakdown including paint materials ($30-80/gallon), labor costs ($2-6/sq ft), primer, supplies, and surface preparation. Typical room costs: $300-800 for 12x12 room. Seattle-area pricing.

Deck & Patio Calculator

Deck Construction Calculator - Estimate costs for building or replacing outdoor decks and patios. Input deck size, material type (pressure-treated wood, cedar, composite, PVC), railing style, stair requirements, and foundation type. Calculator provides breakdown of decking materials ($15-45/sq ft), railings ($25-60/linear ft), structural support, hardware, and labor. Includes options for multi-level decks, built-in seating, and pergolas. Seattle building code compliant estimates.

Exterior Painting Calculator

Exterior Painting Calculator - Estimate costs for painting home exteriors including siding, trim, doors, windows, and accents. Input home square footage, stories, siding type, trim linear feet, paint quality, and surface condition. Calculator accounts for surface preparation, priming, caulking, and multiple coats. Includes costs for power washing ($0.35-$0.75/sq ft), repairs, and weatherproofing. Seattle climate considerations included.

Flooring Installation Calculator

Flooring Installation Calculator - Estimate costs for installing hardwood, laminate, vinyl, tile, or carpet flooring. Input room square footage, flooring material, quality tier, subfloor condition, and removal of existing flooring. Calculator provides material costs ($3-25/sq ft), underlayment, labor ($3-15/sq ft), transitions, baseboards, and disposal. Includes options for patterns (herringbone, diagonal), moisture barriers, and radiant heat compatibility.

Window Replacement Calculator

Window Replacement Calculator - Estimate costs for replacing windows with energy-efficient models. Input number of windows, window types (single-hung, double-hung, casement, slider, bay, picture), sizes, frame material (vinyl, wood, fiberglass, aluminum), and glass options (single, double, triple pane, Low-E coating). Calculator includes window units ($300-$1500 each), installation labor ($150-$350/window), trim work, insulation, and disposal. Energy savings estimates included.

Siding Installation Calculator

Siding Installation Calculator - Estimate costs for installing or replacing home siding. Input home square footage, stories, siding material (vinyl, fiber cement, wood, metal, stucco), quality tier, and extras like insulation or house wrap. Calculator provides material costs ($3-15/sq ft), removal of old siding ($1-3/sq ft), installation labor ($3-8/sq ft), trim, corners, and accessories. Includes ventilation, moisture barriers, and warranty options.

Fence Construction Calculator

Fence Construction Calculator - Estimate costs for building privacy fences, picket fences, or decorative fencing. Input fence linear footage, height, material (wood, vinyl, aluminum, chain link, composite), style, gates, and terrain challenges. Calculator includes posts, panels/pickets, hardware, gates ($200-$600), labor ($15-$40/linear ft), concrete for posts, and removal of existing fence. Options for caps, lattice tops, and custom designs.

Landscaping Calculator

Landscaping Calculator - Estimate costs for comprehensive landscaping projects including sod/grass, plants/shrubs, trees, irrigation systems, hardscaping (pavers, retaining walls), and garden beds. Input lot size, grass area, number of plants/trees, irrigation zones, and hardscape square footage. Calculator provides costs for site preparation, grading ($5-10/sq ft), materials, plant materials ($25-300 per plant), irrigation ($2500-5000), and labor. Includes mulch, edging, and ongoing maintenance estimates.

Cost Breakdown Transparency - See Where Your Money Goes

Every Kolmo calculator provides a detailed, itemized cost breakdown that explains exactly where your money goes. Unlike simple total-only estimates, our calculators show separate line items for materials, labor, disposal, equipment, and additional costs. This transparency helps homeowners make informed decisions and compare quotes accurately.

Material Cost Breakdown Includes:

• Specific product pricing with brand and quality tier options
• Quantities needed with waste factor calculations (10-15% overage)
• Per-unit pricing for easy comparison shopping
• Delivery and shipping costs
• Upgrade options showing cost differences between quality tiers

Labor Cost Breakdown Includes:

• Hourly rates by trade: General contractors ($65-85/hr), Specialized trades ($75-95/hr), Painters ($40-65/hr)
• Estimated hours required for project completion
• Crew size and composition
• Labor efficiency factors based on project complexity
• Seattle-area prevailing wage rates

Additional Cost Categories:

• Surface preparation and demolition work
• Debris removal and disposal fees
• Equipment and tool rentals
• Fasteners, adhesives, and consumable supplies
• Finish work, touch-ups, and cleanup

Transparency Benefits:

Our detailed breakdowns help you: compare contractor quotes accurately, identify where to save money (like DIY prep work), understand quality vs cost trade-offs, make informed material upgrade decisions, and budget for contingencies. When you adjust project parameters (like room size or material quality), you immediately see how each change affects your total cost.

Example Cost Breakdown:

Interior Painting - 12x12 bedroom: Premium paint (2 gallons @ $80/gal) = $160, Primer (1 gallon) = $40, Supplies (tape, brushes, drop cloths) = $50, Surface preparation labor (4 hrs @ $50/hr) = $200, Painting labor (6 hrs @ $50/hr) = $300. Total project cost: $750 (Materials: $250, Labor: $500, Material/Labor split: 33%/67%). This breakdown shows that labor represents the majority of interior painting costs, helping you understand why proper surface prep and skilled application matter.