SLC Radon (801) 854-8750

Radon mitigation cost in Salt Lake City

Most Salt Lake Valley homes land near Utah's typical figure of about $1,800–$2,000. Here's what pushes a quote above or below that, with sources, plus an estimator for your home.

Typical Utah cost: about $1,800 to $2,000 for a standard active system.

  • Utah DEQ: "around $2,000" (Source: Utah DEQ)
  • Utah DEQ's real-estate guidance: an average of $1,800, "depending primarily on the type of foundation and the size of the home" (Source: Utah DEQ)
  • University of Utah radon program: about $2,000 (updated June 2025) (Source: University of Utah)

Running cost: about $8–$10 a month in electricity. Plan on a new fan after about 15 years (Source: Utah DEQ), roughly $500 for updates and maintenance at that point (Source: University of Utah).

Estimate your Salt Lake radon mitigation cost

Salt Lake radon mitigation cost estimator

The area of the lowest floor, not total living space. A two-story 2,600 sq ft home is often a ~1,300 sq ft footprint.

Estimated installed price

$1,500–$2,200

Assumes 1 suction point.

Estimate only, not a quote. It's our model (assumptions below), built from Utah DEQ and University of Utah averages and EPA guidance on what drives cost. A contractor's site visit and written bid set the real price.

Why quotes in Salt Lake City vary

EPA lists the factors a contractor weighs: how high your radon level is, your home's size, your foundation type, and installation and operating costs (Source: EPA). Here's how each one shows up in a Salt Lake quote.

1. Foundation type (the biggest driver)

Foundation Usual method Where it falls vs. the ~$1,800–$2,000 typical
Slab on grade Sub-slab suction, usually one point At or below typical
Basement (poured concrete) Sub-slab suction through the basement floor; sometimes the sump pit is used Near typical; higher if the basement is finished
Crawl space Sealed plastic membrane over the dirt, with suction underneath ("submembrane suction") Above typical; the membrane scales with crawl-space area
Combination (e.g. basement + crawl space, or split-level with slab sections) Suction under each section, tied into one fan where possible Highest; two systems' worth of work

EPA calls submembrane suction "the most effective way to reduce radon levels in crawlspace homes" (Source: EPA). It takes more labor and material than drilling one hole through a slab, which is why crawl spaces cost more. That's the method to expect in a quote; simply ventilating a crawl space is EPA's less effective option.

2. Number of suction points

Each suction point is a hole through the slab with its own pipe connection. EPA notes that "often, only a single suction point is needed". How many you need depends on how easily air moves through the gravel or soil under the slab (Source: EPA). Large footprints, slabs poured over dense native soil instead of gravel, and foundations split into sections (common in additions) need more. Contractors often run a "pressure field extension" test (a small test hole and a gauge) to decide.

3. Fan and pipe route

The fan must sit outside living space and the exhaust must discharge above the roof (Source: EPA). An exterior route, up the outside wall with the fan mounted outside, is usually simplest. An interior route through a closet and up into the attic looks cleaner from the street, but in a finished home it means cutting and patching drywall.

4. Finished basements

Many newer Salt Lake Valley homes (most homes in South Jordan, Herriman and Draper were built after 2000 (Source: U.S. Census ACS)) have fully finished basements. That limits where a contractor can put a suction point and run pipe without opening walls.

5. Electrical and permits

Wiring must meet local electrical code (Source: EPA). Permit requirements vary by city; ask the contractor whether your city requires one and whether it's included in the bid.

What a complete bid should include

EPA suggests getting these in writing from any contractor (Source: EPA):

Utah DEQ's advice: "If you get at least three bids, you will have a good idea of the general price range" (Source: Utah DEQ).

Help paying for it

How the estimator works

We don't have a Salt Lake price survey yet, so the estimator is our model. It's anchored on the Utah figures above and adjusted for the cost drivers EPA describes. Every assumption is listed here so you can judge it. We'll update it as we collect real local quotes.

Assumption Value we use
Base price, one suction point: slab $1,400–$2,000
Base price, one suction point: basement $1,500–$2,200
Base price: crawl space (membrane up to 1,000 sq ft + suction) $2,000–$3,200
Base price: combination foundation $2,500–$4,000
Slab or basement area one suction point covers 2,000 sq ft (then +1 point)
Each extra suction point +$300–$600
Crawl-space membrane over 1,000 sq ft +$1–$2 per sq ft
Share of a combination footprint assumed to be crawl space 40%
Finished basement or lowest floor +$150–$500

The estimate is not a quote, and real bids can fall outside it. Very high radon levels, unusual soils, block foundations and hard-to-reach roofs can all raise the price.

Sources

Last reviewed October 22, 2026.

  1. High radon levels? What's next, Utah Department of Environmental Quality. Accessed October 22, 2026.
  2. Radon and real estate transactions in Utah, Utah Department of Environmental Quality. Accessed October 22, 2026.
  3. Radon resources (updated June 20, 2025), University of Utah radon program. Accessed October 22, 2026.
  4. Consumer's Guide to Radon Reduction: How to Fix Your Home (2016), U.S. Environmental Protection Agency. Accessed October 22, 2026.
  5. American Community Survey 2020–2024 5-year estimates, tables B25034, B25035, B25003 (via Census Reporter), U.S. Census Bureau. Accessed October 22, 2026.

Tested high? Here's the next step.

Call and tell us your test result, your city and your foundation type (basement, slab or crawl space). We'll connect you with a licensed local contractor for a written quote. Get more than one bid; Utah DEQ suggests three.

Call (801) 854-8750 Request a callback

Call (801) 854-8750 Request a callback