Home Improvement Costs in Seattle, WA
Budgeting ranges for 30 popular projects in Seattle, Washington. Click any project for a full calculator and detailed factors.
City multiplier used on this hub: ×1.22 (approximation). Last updated December 28, 2025.
Project cost overview
These are rough ranges to help you plan. For an accurate quote, measure your scope and request bids from local pros.
| Project | Low | Typical | High |
|---|---|---|---|
| Fence Installation per ft |
$3,660 | $6,405 | $10,980 |
| Deck Installation per sq ft |
$8,784 | $16,104 | $26,352 |
| Pergola Installation per sq ft |
$7,808 | $13,664 | $23,424 |
| Paver Patio Installation per sq ft |
$4,392 | $7,320 | $12,810 |
| Concrete Patio / Slab per sq ft |
$3,416 | $5,978 | $9,394 |
| Asphalt Driveway per sq ft |
$2,928 | $5,124 | $8,784 |
| Roof Replacement per sq ft |
$8,784 | $15,372 | $26,352 |
| Window Replacement per window |
$5,490 | $9,760 | $17,080 |
| Siding Replacement per sq ft |
$11,712 | $19,520 | $35,136 |
| Gutter Installation per ft |
$1,318 | $2,635 | $4,392 |
| HVAC Replacement per system |
$7,930 | $11,590 | $17,690 |
| Water Heater Replacement (Tank) per unit |
$1,464 | $2,318 | $3,904 |
| Tankless Water Heater Installation per unit |
$3,050 | $4,636 | $7,320 |
| Bathroom Remodel per bathroom |
$7,259 | $16,592 | $36,295 |
| Kitchen Remodel per kitchen |
$18,300 | $42,700 | $91,500 |
| Basement Finishing per sq ft |
$21,960 | $40,260 | $73,200 |
| Attic Insulation per sq ft |
$1,830 | $3,660 | $7,320 |
| Solar Panel Installation per kW |
$18,300 | $23,424 | $30,744 |
| EV Charger Installation per charger |
$976 | $1,586 | $3,050 |
| Interior Painting per sq ft (floor area) |
$4,392 | $7,686 | $14,274 |
| Exterior Painting per sq ft (floor area) |
$6,710 | $12,078 | $21,472 |
| Flooring Installation (LVP / Laminate) per sq ft |
$3,904 | $6,832 | $11,712 |
| Drywall Installation / Replacement per sq ft |
$2,440 | $4,270 | $7,320 |
| Electrical Panel Upgrade per panel |
$1,830 | $3,660 | $6,710 |
| Recessed Lighting Installation per light |
$1,464 | $2,440 | $4,392 |
| Whole-Home Repipe (Plumbing) per home |
$4,880 | $10,980 | $19,520 |
| French Drain Installation per ft |
$1,830 | $3,294 | $6,222 |
| Epoxy Garage Floor Coating per sq ft |
$1,647 | $3,294 | $5,490 |
| Tree Removal per tree |
$366 | $1,037 | $2,684 |
| Landscaping (Full Yard Refresh) per sq ft |
$9,760 | $19,520 | $39,040 |
Next steps
- Pick a project above and use the calculator to match your scope.
- Confirm permit requirements for Seattle with your city/county building department.
- Get 2–3 written quotes and compare scope line-by-line.