A bubble-up radon system, usually an aeration unit that strips radon from well water, commonly costs $3,000-$8,000 installed, with many standard projects near $5,000. Price depends on water flow, radon concentration, plumbing changes, electrical work, and whether the system treats water at the point of entry or a single fixture.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Installed aeration system | $3,000 | $5,000 | $8,000 | Whole-house well-water treatment |
| Equipment | $1,500 | $2,800 | $4,500 | Capacity and controls affect price |
| Installation labor | $700 | $1,500 | $2,800 | Typical plumbing and electrical work |
| Water testing | $150 | $300 | $600 | Initial and post-installation tests |
What a whole-house bubble-up system usually costs
For a typical detached home using a private well, an installed aeration system generally falls between $3,000 and $8,000. The average is about $5,000 for equipment sized to the household, ordinary access near the water entry point, and standard plumbing connections. Larger homes, high water use, difficult vent routing, or substantial electrical work can push the quote above that range.
Equipment-only prices are often $1,500-$4,500, while a smaller point-of-use arrangement may cost less but treats only a specific tap. A broad planning allowance is about $0.50-$2 per gallon per day of rated treatment capacity, though vendors do not always quote systems on that basis. Assumptions: U.S. home with a private well, standard installation access, and no major plumbing replacement. Confirm that the quote covers treatment capacity matched to peak household water demand, not just the equipment purchase.
How aerator equipment, plumbing, and labor shape the quote
A quote may bundle the aeration tank, air blower, controls, vent, installation, and testing. The ranges below are planning estimates; package pricing and local labor rates vary, and some contractors combine equipment and labor into one line.
| Quote component | Low | Typical | High | Pricing basis |
|---|---|---|---|---|
| Aeration tank and controls | $1,200 | $2,300 | $3,800 | Equipment package |
| Blower and vent materials | $250 | $600 | $1,200 | Fan, pipe, and fittings |
| Plumbing and installation | $700 | $1,500 | $2,800 | About $75-$150 per hour |
| Electrical work | $150 | $450 | $1,000 | Outlet, circuit, or wiring changes |
| Testing and commissioning | $150 | $300 | $600 | Water sampling and setup |
Removal of an old unit, a new drain, or a long vent run may add $200-$1,000 or more. Ask the installer to separate equipment, plumbing, electrical work, testing, and disposal so competing bids can be compared on equal scope.
Flow rate and radon concentration change system size
Water demand is a key sizing issue. A home needing treatment for 5-10 gallons per minute may fit a standard residential unit, while demand above 10-15 gallons per minute can require a larger tank, higher-capacity blower, or multiple treatment stages. Such upgrades can add roughly $800-$2,500.
Radon concentration also matters. Results below about 5,000 picocuries per liter may allow a simpler design; readings of 10,000 pCi/L or higher can require stronger aeration, careful venting, and verification testing. The appropriate design depends on both the test result and actual peak water use, so a single concentration number does not determine the final price.
Installation conditions create additional variation. A unit placed beside an accessible pressure tank is less costly than one requiring a new drain, relocated equipment, or a vent routed through multiple floors. Assumptions: The cited capacity examples are planning thresholds, not a substitute for a professional system design. Have the contractor state the tested flow rate and treated-water performance the system is designed to achieve.
Where U.S. installation labor can raise the total
Labor-heavy metropolitan markets, including parts of the Northeast and West Coast, may run 10%-25% above a national midpoint. Smaller towns can be 5%-15% below it, but limited contractor availability or long travel distances may erase the savings. Quotes also vary with local plumbing rates and whether the installer routinely works on well-water treatment.
A straightforward installation often takes 4-8 hours for one technician or a small crew. A complicated setup can take a full day or longer if electrical service, drainage, or venting needs modification. Compare at least two itemized estimates from contractors familiar with radon-in-water treatment, and check whether testing is included.
Three well-water setups show how totals differ
These examples illustrate how equipment capacity and site work affect a realistic estimate; they are not fixed national prices.
| Setup | Scope | Estimated total | What drives the price |
|---|---|---|---|
| Small household | 5-7 gpm, short vent, 4-5 labor hours | $3,000-$4,200 | Basic unit and accessible plumbing |
| Typical family home | 8-10 gpm, 6-8 labor hours | $4,500-$6,200 | Mid-capacity equipment and standard vent |
| High-demand or difficult site | 12-15 gpm, 10-14 labor hours | $6,500-$9,000 | Larger unit, electrical or drainage changes |
Totals assume water testing and ordinary commissioning; extensive construction or unusual vent routing may cost extra. Use flow rate, installation hours, and included tests to judge whether a lower bid is genuinely comparable.
Testing, maintenance, and operating expenses after installation
Post-installation water testing commonly costs $150-$300, and repeat tests may be advisable after system changes or repairs. Blower electricity is often roughly $30-$120 per year, depending on the motor and local utility rates. A blower replacement may cost $300-$900 including labor; actual service life varies by equipment and operating conditions.
Some systems require periodic cleaning or inspection of the tank, drain, and vent. Carbon filtration may be used in certain designs, but it is not interchangeable with aeration and can have different replacement expenses. Request the manufacturer’s maintenance schedule and a written price for blower or control replacement before signing.
Lower the bubble-up system price without undersizing treatment
Provide recent water test results, well-pump details, and household flow needs before requesting bids; this reduces allowances for unknowns. Keep the installation near existing water and electrical connections when practical, and avoid paying for oversized capacity unless measured demand justifies it. Bundling minor plumbing work with the installation may also avoid a separate service-call fee.
Compare a complete aeration quote with other treatment approaches only when the contractor explains performance and upkeep for the specific water test. Do not cut costs by skipping commissioning or follow-up testing. The safest savings come from limiting unnecessary site work and upgrades while keeping capacity, venting, and verification testing intact.