Plumbing Services

The Foundation of Every Functional High-Density Building

Plumbing is one of AMPAM’s four core self-perform trades and the foundation on which our reputation was built. For over two decades, we have been the plumbing partner of choice for some of the most demanding developers and general contractors in the high-density construction market. We serve multi-family residential communities, mixed-use developments, student housing developments, retirement campuses, and hospitality properties — self-performing all plumbing scopes from underground rough-in through above-grade systems, fixture installation, and post-construction service. The result is a complete, accountable plumbing solution delivered under one roof on every project.


What We Do:
Plumbing for Multi-Family, Mixed-Use, Student Housing, Retirement Communities & Hospitality

We self-perform the complete plumbing scope for multi-family residential developments, mixed-use developments, student housing communities, retirement communities, and hospitality properties of all sizes and types, including:

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Underground & Below-Grade Plumbing

We install all underground sanitary sewer, domestic water, and storm drain systems, focusing on accuracy and code compliance from day one. Proper underground work sets the trajectory for every system above grade — our teams take this phase seriously and never cut corners.

Domestic Hot & Cold Water Systems

From riser design through unit distribution, we install domestic water systems built for the demands of high-occupancy living and hospitality operations. We work with copper, CPVC, and PEX systems, and our pre-construction teams optimize pipe routing to minimize material waste and labor hours.

Sanitary Drain, Waste & Vent (DWV) Systems

Properly engineered and installed DWV systems are essential in high-density construction where shared stacks serve multiple floors and units. Our teams design and install drain, waste, and vent systems that comply with applicable plumbing codes and perform quietly and reliably for residents, students, guests, and retirees.

Domestic Hot Water Heating & Recirculation

Occupant satisfaction in multi-family, student housing, retirement, and hospitality properties is directly tied to hot water availability and wait times. We design and install central domestic hot water heating systems — including gas, electric, heat pump water heaters, and solar-assist configurations — along with recirculation systems engineered to deliver hot water quickly and efficiently throughout the building.

Gas Piping Systems

We install natural gas distribution systems serving residential units, commercial kitchens, laundry facilities, and mechanical equipment across all building types. All gas systems are installed and pressure-tested in strict compliance with applicable code requirements and local utility standards.

Fixture & Trim Installation

From toilets, lavatory faucets, and kitchen sinks to shower systems and ADA-compliant fixtures, we provide complete fixture installation across every unit type. Our teams work with any fixture package specified by the owner or interior designer, maintaining quality and consistency across hundreds of units — whether in a multi-family community, student housing tower, retirement residence, or hotel.

Site Utilities & Storm Drainage

We manage site utility coordination, including water service connections, sewer laterals, and storm drainage systems. Our pre-construction teams engage early with civil engineers and local utility providers to resolve conflicts before they impact the construction schedule.

Plumbing Service & Maintenance

Our service division supports property managers and owners with preventive maintenance programs, leak detection and repair, water heater replacements, fixture upgrades, and emergency response. Because we built the system, our service technicians arrive on-site already knowing the building.


Where plumbing performance
meets precision.


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The AMPAM Multi-Trade Advantage

Plumbing, HVAC, electrical, and low-voltage share the same walls, ceilings, and shafts. In any high-density building — whether multi-family residential, student housing, a retirement community, or a hospitality property — plumbing risers compete for the same limited shaft space as mechanical ductwork and electrical conduit. When these trades are managed by separate companies with distinct schedules and priorities, conflicts arise — and they are resolved at great expense in the field.

AMPAM self-performs all four trades under a unified team. For our plumbing scope, the advantages are direct and measurable:


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Spatial coordination across all trades

Plenum and shaft decisions are made collectively before installation begins, producing tighter layouts and dramatically fewer RFIs in the field.

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Multi-trade prefabrication

Plumbing assemblies are prefabricated off-site alongside mechanical and electrical components, reducing on-site labor, improving quality control, and accelerating the overall schedule.

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Design-assist continuity

Our plumbing engineers and field leadership engage in pre-construction with the mechanical, electrical, and low-voltage teams, applying a 4-trade lens to every coordination challenge. Cost savings and constructability improvements are identified early, before they become change orders.

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Reduced change orders and claims

Shared documentation and open dialogue between trades means fewer disputes between owners and GCs, and better schedule reliability for everyone.

Unified warranty and service

Post-construction, our service team covers all MEP systems. When a building system issue involves multiple trades, AMPAM resolves it with one call.

Single point of contact

One AMPAM project leader coordinates all trades, eliminating the scheduling conflicts and communication gaps that arise when separate subcontractors compete for the same space and schedule.


The result is a building where every system fits, every system performs, and every occupant's experience reflects the quality we promised.




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Why Developers & Owners Choose AMPAM for Plumbing

Deep industry expertise

Our decades of experience across multi-family residential, student housing, retirement communities, and hospitality construction give us unmatched knowledge of the codes, coordination challenges, and construction practices that define high-density plumbing.

We have delivered plumbing scopes on projects ranging from boutique infill developments to master-planned communities with thousands of units.

Green building compliance and water efficiency standards are integrated into our plumbing design from the earliest stages of pre-construction.

We stand behind our installations with a full-service team that supports properties long after the ribbon is cut.


Integrated MEP solutions, all in one place

AMPAM delivers Mechanical, Electrical, and Plumbing services as one fully coordinated system. By integrating all three disciplines, we simplify construction, improve efficiency, and deliver consistent results across every phase of your project. Explore our full range of services to see how One AMPAM helps reduce complexity and create better outcomes.

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Preventative Maintenance Service

Full-spectrum MEP service — proactive maintenance, emergency response, and complete system retrofits — delivered by the team that built California's premier mechanical, electrical, and plumbing infrastructure.
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Low Voltage, Fire & Integration Services

Integrated low-voltage, fire, and technology systems designed to keep multifamily, student housing, retirement, and hospitality environments safe, connected, and built for long-term performance.
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Let's Build Something That Lasts

Whether you are planning a multi-family residential development, mixed-use development, a student housing community, a retirement campus, or a hospitality project, AMPAM has the plumbing expertise and integrated MEP capability to perform at the highest level. Contact us to discuss your project.