Maryland's Best Radon Testing


IAC2  Certified Radon Measurement Provider
Robert (Bob) Kenney
Cert. # IAC2-02-3334

Page 18 of the EPA's Pamphlet "A Guide to Radon Reduction" offers some average estimated costs associated with various Radon reduction methods.

INSTALLATION AND OPERATING COST TABLE

 

Technique

Typical Radon

Reduction

Typical Range of Installation Costs (Contractor)

Typical Operating Cost Range for fan Electricity & Heated/Cooled Air Loss (Annual)

Comments

Subslab Suction (Subslab depressurization)

50 to 99 percent

$800 to

$2,500

$50 to $200

Works best if air can move easily in material under slab.

Passive Subslab Suction

30 to 70 percent

$550 to

$2,250

There may be some energy penalties

May be more effective in cold climates; not as effective as active subslab suction.

draintile Suction

50 to 99 percent

$800 to

$1,700

$50 to $200

Can work with either partial or complete drain tile loops.

Block-wall Suction

50 to 99 percent

$1,500  to

$3,000

$100 to $400

Only in homes with hollow block-walls;

requires sealing of major openings.

Sump-Hole Suction

50 to 99 percent

$800 to

$2,500

$50 to $250

Works best if air moves easily to sump from under the slab.

Submembrane depresserization in a Crawlspace

50 to 99 percent

$1,000  to

$2,500

$50 to $250

Less heat loss than natural ventilation in cold winter climates.

natural ventilation in a

Crawlspace

0 to 50 percent

none

$200 to $500 if additional vents installed

There may be some energy penalties

Costs variable.

Sealing of Radon Entry

Routes

See

Comments

$100 to

$2,000

None

Normally only used with other techniques; proper materials and installation required.

House (Basement) Pressurization

50 to 99 percent

$500 to

$1,500

$150 to $500

Works best with tight basement isolated from outdoors and upper floors.

natural ventilation

Variable/ Temporary

none

$200 to $500 if additional vents installed

$100 to $700

Significant heated or cooled air loss; operating costs depend on utility rates and amount of ventilation.

Heat Recovery ventilation (HRv)

Variable/ See comments

$1,200  to

$2,500

$75 to $500 for continous operation

Limited use; effectiveness limited by radon concentration or the ammount of ventilation air available for dilution by the HRV. Best Applied in limited- space areas like basements.

Private well water

Systems: Aeration

95 to 99 percent

$3,000  to

$4,500

$50 to $150

Generally more efficient than GAC; requires annual cleaning to maintain effectiveness and to prevent contamination; requires venting radon to outdoors.

Private well water Systems: Granular Activated Carbon, or GAC

85 to 95 percent

$1,000  to

$3,000

None

Less efficient for higher levels than aeration; use for moderate levels, around 50,000  pCi/L or less in water: radioactive radon by-products can build on carbon; may need radiation shield around tank and care in disposal.

nOTES:      (1) The fan electricity  and home heating/cooling  loss cost range is based on certain assumptions regarding climate, your homes size, and the cost of electricity  and fuel. Your costs may vary.

(2) Costs for cosmetic treatments to the home may increase the typical installation  costs shown above.

Your home may need more than one of the methods above to achieve acceptable Radon reduction.   Foundation styles and construction techniques determine the methods acceptable for any given property.

The EPAs pamohlet "A Guide to Radon Reduction" offers some useful guidelines on doing business with a Radon Contractor;  what to expect, and what to require.