Sump Pump Installation Cost in Washington DC 2026

What sump pump installation includes in Washington DC

Installation of a new sump pump in a basin with a check valve, discharge piping, and a battery backup option to protect against basement flooding. Includes testing under water load.

Typical time on site: half a day. Local labor rate: $49/hour for an experienced plumbing pro.

What changes the price of sump pump installation in Washington DC

• Pump horsepower
• Battery backup added
• Basin and pit digging
• Discharge line routing
• Existing pit condition

A sump pump installation quote priced off statewide averages will be off by 10 to 20 percent for Washington DC, because the metro has its own labor pool, material delivery distances, and permit timelines.

Washington DC climate and demand for plumbing

Humid subtropical; freeze-thaw cycles; historic preservation drives material choices

Washington DC permits for sump pump installation

Building department: DC Department of Buildings (DOB). https://dob.dc.gov

Typical permit cost: $400 - $4,500 residential. Inspection time: 10-25 business days. Washington DC rule: DC DOB and DCRA have strict historic preservation review (HPRB). License + basic business license required. DC has no state taxes but has its own sales tax (6%).

District of Columbia sales tax and licensing for Plumbing

District of Columbia sales tax: 6% (no local addition). Real property labor not taxable; TPP repair labor is taxable.

State license: DC Department of Consumer and Regulatory Affairs, required: $390 (basic business license).

Get accurate Sump Pump Installation quotes in Washington DC with KaamCam

KaamCam helps Washington DC plumbing pros send branded estimates by text, take deposits online, and schedule jobs from one app. The estimate templates auto-fill District of Columbia sales tax and Washington DC permit fee lines. $12 per user per month. Start a 7-day free trial.