Professional Plumbing and Drainage Installations You Can Rely On
Proper installation is the foundation of a reliable plumbing system. We specialize in Plumbing and Drainage Installations that ensure smooth water flow, effective waste removal, and long-term durability.
Whether you’re upgrading an older system or building new, our licensed plumbers deliver precise, code-compliant installations that keep your property running efficiently.
Limited Time Offer
Save on your next plumbing and drainage service. Check out our current promotions!
Our Installation Services Include
Professional installation solutions designed to keep your plumbing system running efficiently and safely.
New Construction Plumbing
From layout to installation, we design and install complete plumbing systems for residential and commercial properties.
Drainage System Installation
We install durable drain lines that prevent backups, flooding, and foundation issues, built to handle heavy use.
Pipe & Water Line Installation
We clear clogs, clean drains, and restore smooth, efficient drainage using advanced equipment.
Why Choose Marathon for Plumbing Installation?
When you need dependable plumbing installation, our team delivers fast, clean, expert service every time.
Licensed & Insured
Certified professionals trained to handle everything from minor repairs to major pipe issues.
Fast, Courteous Service
We arrive on time, protect your home, and complete repairs efficiently.
Quality Parts & Long-Lasting Solutions
We fix problems at the root, not with temporary Band-Aid fixes.
Transparent, Upfront Pricing
No surprises. No hidden fees.
Trusted Locally
Serving Los Angeles, Riverside & Orange County
Signs You Need Plumbing & Drainage Installation
Slow or Poor Drainage
Consistently slow drains often mean outdated or improperly sloped drain lines.
Recurring Backups or Gurgling
Frequent clogs or bubbling noises suggest deeper drainage problems that require replacement.
Low Water Pressure
Home-wide pressure drops can indicate corroded or failing plumbing lines.
Sewer Odors
Persistent foul smells can point to damaged or deteriorating drain or sewer lines.
Home Renovations
Adding new fixtures or rooms often requires updated plumbing and drainage systems.
Serving Los Angeles, Riverside, and Orange Counties
At Marathon Plumbing, Heating, and Air, we’re proud to provide reliable furnace maintenance plans for homeowners and businesses throughout Los Angeles, Riverside, and Orange County. Our reputation is built on transparent pricing, expert service, and a commitment to keeping our customers comfortable year after year.
Los Angeles County
Riverside County
Orange County
San Bernardino
Pasadena
Long Beach
Related Plumbing and Drainage Services
Explore our full range of services to keep your plumbing and drainage running at full efficiency
Fast, accurate repairs for leaks, broken fixtures, and common plumbing issues.
Clog removal, drain cleaning, and sewer line solutions to restore proper flow.
Repairs and replacements for toilets, sinks, showers, tubs, and bathroom fixtures.
Comprehensive repair solutions to keep your plumbing system problem-free.
Plumbing & Drainage Installations
Professional installation of pipes, drains, and fixtures for long-lasting reliability.
Schedule Your Plumbing or Drainage Installation Today
Ensure your plumbing is built to last. Contact Marathon Plumbing, Heating, and Air for expert Plumbing and Drainage Installations that deliver reliability, efficiency, and peace of mind.