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
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):
- Proof of state licensing and any certification (see licensing vs. certification), plus liability insurance
- The system design: number of suction points, pipe route, fan model and location
- A warning device (manometer or alarm) placed where you'll see it
- Who does the post-installation test, and when (no sooner than 24 hours, within 30 days of startup)
- Warranty terms, and whether they transfer if you sell the home
- What you need to do before the crew arrives
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
- Green and Healthy Homes (Salt Lake County): funding for qualifying families to help pay for mitigation (Source: Utah DEQ). Eligibility is income-based; ask the program before you sign a contract.
- Selling a home? Mitigation cost is often negotiated as a credit or a seller-paid install. See radon in Utah home sales.
- Insurance: we haven't found a Utah source saying homeowner's insurance covers radon mitigation. Treat it as an out-of-pocket home repair unless your insurer says otherwise in writing.
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.
- High radon levels? What's next, Utah Department of Environmental Quality. Accessed October 22, 2026.
- Radon and real estate transactions in Utah, Utah Department of Environmental Quality. Accessed October 22, 2026.
- Radon resources (updated June 20, 2025), University of Utah radon program. Accessed October 22, 2026.
- Consumer's Guide to Radon Reduction: How to Fix Your Home (2016), U.S. Environmental Protection Agency. Accessed October 22, 2026.
- American Community Survey 2020–2024 5-year estimates, tables B25034, B25035, B25003 (via Census Reporter), U.S. Census Bureau. Accessed October 22, 2026.