Home Improvement Costs in Washington | All Projects (2026)
Planning a home improvement project in Washington? Below is a complete breakdown of estimated costs for 13 common projects, based on 2026 data. The most expensive typical project is Siding Replacement at $17,885, while Home Security System comes in at $300.
Washington Cost Snapshot
Projects Covered
13
Avg. Typical Cost
$9,117
Renovation Estimate
$9,274
All Home Improvement Costs in Washington
Sorted by typical cost, most expensive first. Click any project to see a detailed breakdown for Washington.
| Project | Low | Typical | High |
|---|---|---|---|
| Siding Replacement | $7,528 | $17,885 | $38,807 |
| Childcare | $5,196 | $16,908 | $21,348 |
| Solar Panel | $10,760 | $16,140 | $26,900 |
| Roof Replacement | $10,246 | $13,173 | $17,565 |
| Deck Building | $6,294 | $12,588 | $25,176 |
| Window Replacement | $6,643 | $10,341 | $19,116 |
| HVAC Replacement | $6,656 | $9,343 | $12,433 |
| Garage Door Replacement | $2,097 | $5,506 | $6,667 |
| Flooring Installation | $1,939 | $4,848 | $9,697 |
| Interior Painting | $1,401 | $4,426 | $8,999 |
| Exterior Painting | $1,556 | $4,374 | $8,670 |
| Water Heater Replacement | $2,233 | $2,688 | $7,925 |
| Home Security System | $120 | $300 | $480 |
Full Renovation Estimate for Washington
If you are planning a major renovation that includes a kitchen remodel, bathroom remodel, new flooring, and interior painting, here is the combined estimate for Washington:
Low End
$3,340
Typical
$9,274
High End
$18,696
| Included Project | Low | Typical | High |
|---|---|---|---|
| Flooring Installation | $1,939 | $4,848 | $9,697 |
| Interior Painting | $1,401 | $4,426 | $8,999 |
| Total | $3,340 | $9,274 | $18,696 |
This estimate combines kitchen remodel, bathroom remodel, flooring, and interior painting. Actual costs depend on scope, materials, and contractor pricing.
How Washington Compares to Neighboring States
The table below shows how the average project cost across all calculators in Washington compares to its neighboring states. If you live near a state border, nearby contractors may offer competitive pricing.
How these costs were calculated
Data sources: Bureau of Labor Statistics (OEWS), Craftsman National Estimator, NAHB permit data
Granularity: State-level averages; metro areas may vary 20–30%
See our full methodology. Report an error.