📍 Serving North County San Diego & Surrounding Areas
📧 service@so-calplumbing.com 📞 760.579.3334
⭐⭐⭐⭐⭐ Rated 5-Stars by Homeowners

North County's
Trusted Plumber
Since 2005

Family-owned and operated by Jay Markoski — licensed plumbing contractor specializing in water heaters, general service & repair, PEX and copper repipes, remodels and new residential construction. Serving all of North County San Diego and surrounding areas.

📋 Get a Free Quote 📞 Call Now
🏠 Residential
⚡ Same Day Availability
🛡️ Licensed & Insured
📍 North County San Diego
📞 Quick Response Form
We'll call you back within the hour

No spam. No obligation. Just fast, honest service.

✅ Thanks! Jay will call you shortly.
🏆 20+ Years Experience
📋 Licensed & Fully Insured
💧 Tank & Tankless Water Heater Experts
🔁 Repipe Experts
⭐ 5-Star Rated

What We Do

Plumbing Services in
North County San Diego

Bathroom & Kitchen Remodels

Transform your outdated kitchen or bathroom with professional plumbing to meet remodel needs of all sizes. From underground to rough-in plumbing to final fixture installation, we provide clean, reliable workmanship from start to finish.

PEX Repipe

Replace outdated or leaking copper or galvanized pipe with durable PEX piping throughout your home. PEX piping improves reliability and helps protect against costly leaks and future plumbing issues.

Gas Lines

Safe and reliable gas line installation and repair for appliances, remodels, outdoor kitchens, fire pits, and more. All work is completed with a focus on safety, performance, and code compliance.

Water Heater Installation & Repair

Install, repair, and maintenance services for gas and electric tank and tankless water heaters. All installations are completed to California code requirements, including earthquake strapping.

Copper Repipe

Professional copper repiping services for homes with aging or leaking pipes. Ideal for resolving recurring pinhole leaks and restoring long-term reliability to your plumbing system.

General Plumbing

General plumbing repairs and installations completed with careful attention to detail. From toilets and faucets to dishwashers and plumbing fixtures, we make sure everything works properly and meets your needs.

The So-Cal Difference

Real jobs, real results. Every transformation below was completed by Jay and his team right here in North County San Diego.

Dual sink vanity with marble countertop and brass faucets installed by So-Cal Plumbing

Bathroom Remodel

This bathroom plumbing work includes a dual-sink vanity with matching brass faucets and clean, integrated drains. The fixtures are set up for smooth everyday use and a polished, modern finish.

Custom walk-in shower with gold fixtures and zellige tile by So-Cal Plumbing

Walk-In Shower Addition

Custom shower plumbing installation featuring a wall-mounted showerhead, handheld sprayer, and neatly positioned controls. Fixtures were installed for comfort, accessibility, and a clean finished appearance.

Freestanding soaking tub with floor-mounted filler installed by So-Cal Plumbing

Freestanding Tub & Filler

A floor-mounted tub filler with handheld sprayer was installed beside this soaking tub to provide easy access and a streamlined layout. Careful fixture placement helps maximize space while complementing the overall bathroom design.

Wall-mounted concrete sink with exposed brass faucet installed by So-Cal Plumbing

Specialty Installs

Modern wall-mounted sink installation with concealed water lines and a matching exposed drain assembly for a clean, minimalist appearance. Secure framing and precise leveling provide lasting support.

Custom outdoor copper shower installed by So-Cal Plumbing

Outdoor Shower

Custom outdoor shower with exposed copper plumbing and durable control valves. Designed for reliable use while maintaining a clean, architectural appearance.

Master bathroom rough-in plumbing remodel in progress by So-Cal Plumbing

Master Bathroom Repipe

Complete rough-in plumbing installation for a master bathroom remodel, including new drain lines and hot and cold water piping throughout the walls and floor.

Old corroded exterior crawlspace vents before tankless water heater installation BEFORE
New high-efficiency tankless water heater installed by So-Cal Plumbing AFTER

Tankless Water Heater Installation

Old tank water heater removed and replaced with a high-efficiency condensing tankless system. Installation included proper gas line sizing, venting, and code-compliant connections.

40-gallon water heater installation with expansion tank and seismic strapping by So-Cal Plumbing

Water Heater Install

40-gallon water heater installation complete with expansion tank, sediment trap, new shut-off valves, drain pan, and earthquake strapping. All work completed to current California code requirements.

New water heater and whole-home water filtration system installed by So-Cal Plumbing

Water Heater & Filtration System Install

Installation of a new water heater and whole-home water filtration system to improve water quality throughout the home. The system includes a carbon filter, salt tank, and expansion tank for steady performance and softer water.

What Customers Say

Trusted by Homeowners
Across San Diego

⭐⭐⭐⭐⭐
"

On the installation of the 40-gallon hot water heater in our garage. Jay is the type of rare and unique person who looks beyond the money factor, but rather focuses on the human side. He listens and is willing to work with you.

S
Sandra M.
Oceanside, CA · Water Heater
⭐⭐⭐⭐⭐
"

I have worked with Jay and his maintenance crew for three years and I feel I have the best in town. We have remodelled 75 percent of our 69-unit complex and Jay's work is always perfect and on time.

R
Robert T.
Property Manager, North County · Commercial
⭐⭐⭐⭐⭐
"

Mr. Markoski is realistic in his approach. He has extensive experience as a duly licensed plumber. There are no surprises, and he keeps me appraised of estimated completion dates and costs. I appreciate his no-nonsense way of doing business.

D
Dr. Patricia D.
Carlsbad, CA · Full Remodel
⭐⭐⭐⭐⭐
"

Jay replaced our gas water heater. He and his assistant were prompt, courteous and did the work correctly. His price was very competitive. Can't ask for more than that.

M
Mike & Carol B.
Vista, CA · Water Heater
⭐⭐⭐⭐⭐
"

These guys are awesome. I had a clogged drain at my mum's house and they worked tirelessly to unclog it on New Year's Eve, then advised me how to prevent it recurring. Very professional, cleaned up afterwards, and reasonably priced.

L
Lisa K.
San Marcos, CA · Drain Cleaning
⭐⭐⭐⭐⭐
"

Jason is my new plumber. He arrived on time, diagnosed the problem and completed the work professionally. He fully explained what the issues were and is one of the best contractors I've ever worked with.

A
Angela F.
Escondido, CA · Pipe Repair

Get In Touch

Get Your Free
Plumbing Quote

Tell us a bit about your project and Jay will get back to you fast — usually within the hour during business hours. No hard sell, just honest advice from a licensed plumber.

  • ⚡ Fast Response — Usually within 1 hour
  • 💰 Free Estimates — No charge, no obligation
  • 🤝 Upfront Pricing — Agreed before we start
  • 🏆 Quality Guaranteed — 20+ years, 5-star rated
  • 📋 Licensed & Insured — California licensed

Or call Jay directly:

📞 760.579.3334

Request a Free Quote

Takes under 60 seconds — we'll do the rest.

By submitting you agree we may contact you about your enquiry. We never share your data.

✅ Thanks! Jay will be in touch very soon. If it's urgent, call 760.579.3334.

Common Questions

Plumbing Questions
Answered Honestly

Real answers to the questions North County homeowners ask us most. If you don't see your question here, just give Jay a call — no charge for advice.

💧 Still Not Sure?

Jay is happy to talk through any plumbing issue before you commit to anything. Call for a no-obligation chat.

📞 Call Now
In San Diego, water heater replacement for a standard tank can range depending on the size of the unit (commonly 40 or 50 gallons), fuel type, installation complexity, and any required code upgrades such as seismic strapping, expansion tanks, or venting adjustments. Homes with older plumbing setups or tight access can fall on the higher end of that range. We provide transparent, itemized quotes so you know exactly what is included. For tankless water heaters, installation cost depends on the unit size and whether upgrades are needed to gas lines, electrical supply, or venting. While the upfront cost is higher than traditional tanks, tankless systems offer longer lifespan potential and improved energy efficiency over time, especially in households with consistent hot water demand.
PEX (cross-linked polyethylene) is a flexible, durable plastic pipe that replaces ageing copper or galvanised steel throughout your home. Signs you may need a repipe include discoloured water, low water pressure, pinhole leaks, or pipes older than 50 years. A repipe typically pays for itself by eliminating repeated repair call-outs.
Common signs include unexplained increases in your water bill, damp or warm spots on walls or floors, musty odors, peeling paint, or the sound of running water when fixtures are off. In San Diego homes, slab leaks are also common due to aging copper lines and soil conditions. Professional leak detection can pinpoint the issue without unnecessary demolition.
Most tank water heaters last about 6–10 years in Southern California, though well-maintained units can sometimes reach 10–12 years. San Diego's hard water accelerates sediment buildup and corrosion, which can shorten lifespan. Regular maintenance such as flushing the tank and changing the anode rod can help extend performance and reduce the risk of unexpected failure.
We offer priority scheduling for urgent plumbing issues and do our best to provide same-day service when availability allows. For emergencies such as major leaks or water heater failures, calling directly ensures the fastest response so we can assess and dispatch as quickly as possible.
We primarily serve all of North County San Diego, including Oceanside, Carlsbad, Vista, San Marcos, Escondido, Encinitas, Del Mar, La Jolla, Rancho Bernardo, Poway and surrounding communities. If you're unsure whether we cover your area, just call — we'll let you know.

Where We Work

Serving All of North County San Diego

Oceanside
Carlsbad
Vista
San Marcos
Escondido
Encinitas
Del Mar
La Jolla
Rancho Bernardo
Poway
Fallbrook
Bonsall
📞 Call Now