Install Plumbing for an Addition or Remodel Cost in Gaithersburg, MD in 2026
Most Install Plumbing for an Addition or Remodel projects in Gaithersburg, MD cost between $275 and $5,500. The typical price is $1,300.
Labour and materials in Gaithersburg run about 10% above the national average. These figures are adjusted for that, so they are not the national average you will find elsewhere.
What drives the price
- Accessible fixture swap versus opening walls or slab
- Pipe material — copper, PEX or cast iron replacement
- Emergency versus scheduled work
- Permit and inspection requirements
Usually included
- Licensed plumber labour
- Pipe, fittings and standard fixtures
Usually extra
- Drywall and finish repair
- Fixtures you supply
- Municipal tap or sewer connection fees
Plumbers in Gaithersburg, MD
Businesses listed on Google near Gaithersburg, MD. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
Mallick Plumbing & Heating, Inc.
4.9(2,379 reviews)
7620 Rickenbacker Dr Ste L, Gaithersburg, MD 20879
Michael Bonsby HVAC, Plumbing & Electrical
4.8(2,573 reviews)
7940 Cessna Ave, Gaithersburg, MD 20879
Perfectum Construction and Plumbing
5.0(175 reviews)
18711 Capella Ln, Gaithersburg, MD 20877
Benjamin Franklin Plumbing of Gaithersburg
4.8(202 reviews)
9815 Watkins Rd, Gaithersburg, MD 20882
The Drain Guys
4.7(180 reviews)
8041 Cessna Ave Ste 100, Gaithersburg, MD 20879
Ferris Plumbing & Repair
4.9(54 reviews)
19110 Montgomery Village Ave Ste 807, Gaithersburg, MD 20886