As of 2015, the cost of repairing a Delta kitchen faucet ranges from $3 to $250, according to Home Depot and DIYORNOT. These costs depend upon the extent of the problem, the hardware replaced and if a plumber is necessary.
On the low-end of the price scale are small do-it-yourself projects that require inexpensive hardware. Home Depot sells springs, universal seats and cam assemblies from $3 to $5. Full Delta repair kits with O-rings, springs, seats, cam assemblies and wrench are $10 to $15.
Repair costs increase with a plumber. A clogged faucet repair ranges from $75 to $144, says Redbeacon. A noisy or leaking faucet costs $83 to $160. The price to fix a broken faucet ranges from $86 to $166. A faucet replacement costs $145, if the homeowner does it. The same faucet replacement costs $250 with a plumber, states DIYORNOT.