How much does a radon mitigation system cost in Tacoma, WA?

The average radon mitigation system in Tacoma, WA costs $1,826 in 2026. Costs range from $974 for a basic project to $3,653 for a high-end renovation. Tacoma is 22% more expensive than the national average of $1,500.

What is the labor rate for contractors in Tacoma?

The average contractor labor rate in Tacoma, WA is $37.62/hour, compared to the national average of $30/hour. For a radon mitigation system, labor typically accounts for 65% of the total cost, which is approximately $1,187 in Tacoma.

Are materials more expensive in Tacoma?

Tacoma has a material cost index of 115 (national average = 100). Materials cost about 15% more than the national average. For a radon mitigation system, materials account for 35% of the cost, approximately $639.

Do I need a permit for a radon mitigation system in Tacoma?

A radon mitigation system usually does not require a permit in most jurisdictions, though rules vary in Tacoma, WA. Always verify with the local building department. The average permit cost in Tacoma (when required) is $1,336.

Is a radon mitigation system a good investment in Tacoma?

A radon mitigation system provides an estimated 35% ROI nationally. In Tacoma, where the median home price is $501,552, this project costs about 0.4% of your home value. This is a small percentage of home value, making it a relatively low-risk improvement.

Radon Mitigation System in Tacoma, WA — Costs $974 to $3,653

What does radon mitigation system cost in Tacoma? Average $1,826, ranging $974–$3,653. Labor runs $37.62/hr locally — 22% above the national average. Free breakdown with material + labor split.

Tacoma, WA Market

+22% vs national

Labor Rate

$37.62/hr

Material Index

115

Avg Permit Cost

$1,336

Median Home Price

$501,552

Tacoma is a mid-sized city in Washington with a healthy pool of local contractors. Homeowners generally have several options to compare for a radon mitigation system, which helps keep pricing competitive. At 22% above the national average, Tacoma is one of the more expensive markets for home improvement — driven primarily by above-average labor rates in the region. With a median home price of $501,552, this radon mitigation system represents just 0.4% of typical home value — a relatively small investment that can significantly boost curb appeal or functionality.

Low Estimate

$974

National: $800

Mid-Range

$1,826

National: $1,500

High End

$3,653

National: $3,000

Per Sq Ft

National: $0

Duration: 4-8 hours

DIY: Hard

Permits: Not Required

ROI: 35%

Radon Mitigation System Cost Calculator for Tacoma

Adjusted for Tacoma's labor rate ($37.62/hr) and material costs (index 115).

Project Size: 200 sq ft

50 sq ft1,000 sq ft

Quality Level

Mid-grade materials, good quality fixtures, standard options.

Estimated Total in Tacoma

$1,753

Based on 200 sq ft at mid quality, adjusted for Tacoma market rates.

Local Cost Breakdown

Labor (65%)$1,187

At Tacoma's average rate of $37.62/hr (25% above national avg)

Materials (35%)$639

Material cost index 115 (15% above national baseline of 100)

Radon Mitigation System vs. Home Value in Tacoma

Metric	Tacoma	National Avg
Radon Mitigation System (Mid-Range)	$1,826	$1,500
Median Home Price	$501,552	$350,000
Project as % of Home Value	0.4%	0.4%
Estimated ROI	35%	35%
Median Household Income	$78,142	$75,000

What Affects the Price in Tacoma

1Local labor rates ($37.62/hr in Tacoma)
2Material cost index (115 vs national 100)
3Number of suction points
4Fan size
5Pipe routing
6Basement vs slab foundation

Popular Upgrades

Continuous monitor with alarm
Sealed sump pit lid
Fan diagnostic gauge

Other Projects in Tacoma, WA

Whole House Generator Installation

$17,952

HardROI 55%

HVAC System Replacement

$14,299

HardROI 50%

Whole House Plumbing Repiping

$12,176

HardROI 45%

Spray Foam Insulation

$9,658

HardROI 60%

Second Story Addition

$240,400

HardROI 60%

Accessory Dwelling Unit (ADU) Construction

$180,300

HardROI 80%

Room Addition

$108,180

HardROI 55%

Home Addition

$95,744

MediumROI 60%

Radon Mitigation System in Other Washington Cities

Seattle, WA

$2,347

+29%Pop. 737,015

Spokane, WA

$2,117

+16%Pop. 228,989

Vancouver, WA

$2,007

+10%Pop. 190,915

Bellevue, WA

$2,305

+26%Pop. 151,854

Kent, WA

$1,818

SamePop. 136,588

Everett, WA

$2,008

+10%Pop. 110,629

Renton, WA

$2,108

+15%Pop. 106,785

Spokane Valley, WA

$2,109

+15%Pop. 103,597

Planning a Radon Mitigation System in Tacoma

A radon mitigation system typically doesn't require a permit in Tacoma, which simplifies planning. However, always confirm with the local building department before starting, especially for structural changes. Expect the project to take 4-8 hours to complete.

A radon mitigation system is a complex project best left to licensed professionals. In Tacoma, skilled contractors charge an average of $37.62/hr, and the specialized nature of this work means cutting corners on labor can lead to costly rework.

For the median Tacoma household earning $78,142/year, this project at $1,826 represents a significant investment. Consider financing options or phasing the work to spread costs over time.

Radon Mitigation System — National Guide

See the full national cost guide with DIY tips, cost factors, and ROI analysis.

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