Typical project ranges for a single distribution box install span from $500 to $3,000, with most residential jobs landing around $1,000 to $1,800. [Amazon-developed Certification] Compact by Design identifies products that, while they may not always look very different, have a more efficient design. Cost ranges reflect. Homeowners typically spend several hundred to several thousand dollars for distribution box work in septic systems, depending on system size, material, and installation complexity. Cost estimates below use. Create your account and enjoy a new shopping experience. Used to seal septic riser to concrete steptic tank.