Cost of Residential Plumbing Contractors in Hawaii$121.59 per hour (plus parts and materials) (Range: $113.92 - $129.25) Free Estimates from Local ProsCost of Plumbing for Remodel or Home Addition in Hawaii$7,787.90 for repiping 1500 sf home with pex (Range: $6,793.70 - $8,782.10) Free Estimates from Local ProsCost of Toilet Installation or Replacement in Hawaii$247.93 fixed fee (labor only; toilet pre-purchased) (Range: $239.02 - $256.83) Free Estimates from Local ProsCost of Gas Line Installation in Hawaii$57.58 per linear foot (interior from gas meter to location) (Range: $47.21 - $67.94) Free Estimates from Local ProsCost of Septic System Installation in Hawaii$12,528.58 fixed fee for new conventional system (3-bedroom house) (Range: $11,451.53 - $13,605.63) Free Estimates from Local ProsCost of Sewer Line Installation and Repair in Hawaii$107.71 per linear foot (replacement - traditional trench) (Range: $94.45 - $120.96) Free Estimates from Local ProsCost of Swamp Cooler Installation in Hawaii$3,757.49 fixed fee for 7,500 cfm unit (roof-mounted) (Range: $3,628.83 - $3,886.15) Free Estimates from Local ProsCost of Fuel Tank Removal in Hawaii$2,871.59 for removal of 550-gallon oil tank (underground) (Range: $2,725.77 - $3,017.41) Free Estimates from Local ProsCost of Water Softener Installation in Hawaii$1,881.86 for water softener installation (32,000 grain) (Range: $1,607.31 - $2,156.40) Free Estimates from Local ProsCost of Well Pump Installation in Hawaii$1,295.78 for shallow well jet pump (mid-grade; up to 25 ft deep) (Range: $1,184.76 - $1,406.79) Free Estimates from Local Pros |