
New Construction
New Construction Plumbing
The plumbing you put in today shapes how the building functions for decades. We design, install, and coordinate it right.
Built Right From the Start
Plumbing That Lasts Decades
New construction plumbing sets the foundation for how a home or building will function for decades. Get it right at this stage and you avoid years of avoidable repairs, callbacks, and code issues.
As a new construction plumbing company based in Catonsville and serving Baltimore County and Howard County, we work with builders, contractors, and homeowners to design water and drain layouts, install complete plumbing systems before walls go up, and coordinate with the project schedule.
That includes permit handling, code compliance, fixture placement planning, and proper venting. Plus on-time delivery so we don’t hold up the build, and clear upfront estimates so plumbing for new construction stays on budget.
- Underground, in-wall, and in-ceiling plumbing
- Water supply and drain/vent systems
- Fixture connections and shutoffs
- Sump pump piping
- Permit acquisition and inspection coordination
- Custom layout design

What We Offer
Our Services

Design & Layout
Thoughtful fixture placement, efficient pipe routing, and proper venting. Designed before a single pipe goes in.
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Installation
Underground, rough-in plumbing, and finish stages for new construction. Coordinated with the build schedule and inspected as we go.
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Permits & Inspections
We pull the permits, handle inspector coordination, and ensure your work passes the first time.
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When to Call Us for New Construction
01
Planning a new home or addition
02
Custom build requiring layout design
03
Need permits and inspector coordination
04
Designing for future maintenance access
05
Builder needs a reliable plumbing partner
06
Code-compliant systems required
Why Builders Choose Metcalf
$0
Commissions
Our plumbers are paid hourly. They have zero incentive to upsell you.
23+
Years
Over two decades serving Baltimore-area builders and general contractors.
Same-Day
Response
Fast response times because we know plumbing emergencies can’t wait.
4.9
Stars
Hundreds of five-star reviews from satisfied customers.
New Construction
How New Construction Plumbing Works
New-build plumbing happens in three coordinated phases, all permitted and inspected by Maryland counties. We work with your GC, architect, and inspector from rough-in through final.
Underground Rough
Drain, waste, and vent lines installed before the slab is poured. One shot to get this right. We plan it carefully.
Above-Slab Rough
Supply lines and DWV branches run inside walls before drywall. County inspection is required before close-up.
Trim & Final
Fixtures installed, valves connected, system pressure-tested, water heater set, and final county inspection passed.
Good to Know
Frequently Asked Questions
Do you handle new construction plumbing?
Yes. From underground rough-in through final fixture set, for new homes, additions, and tenant build-outs.
Residential and commercial projects?
Both. See our commercial plumbing services for retail, restaurant, and multi-unit work.
Do you handle permits and inspections?
Yes. We pull the required permits and coordinate inspections so your project stays on schedule and to code.
Can you work from our architect’s plans?
Absolutely. We plumb from your plans and flag any issues early, before they’re built in.
When should a plumber get involved in a build?
As early as possible. Involving us during design and rough-in avoids costly changes later. Call (410) 242-3111.
What areas do you serve for new construction?
We are based in Catonsville and handle new construction plumbing throughout Baltimore County and Howard County, so builders and homeowners nearby can line up a reliable crew for the whole build.
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Ready to Get It Fixed?
No commissions, no upsells. Just honest plumbing from a team that treats your home like their own. Schedule online or call us directly.
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