Home Plumbing Services in North County San Diego
For reliable home plumbing services in North County San Diego, Alonso Plumbing Inc. handles everything from fixture installation and pipe repair to bathroom remodels, toilet replacement, and 24/7 emergency service. Our licensed plumbers serve homeowners throughout Carlsbad, Oceanside, Vista, San Marcos, Escondido, Encinitas, Fallbrook, and all of North County San Diego — upfront pricing, same-day service, and quality workmanship on every job.
Licensed & Insured
Same-Day Service
Upfront Pricing

Fixture Installation & Repair
From faucets and sinks to showers and valves — we install and repair all residential plumbing fixtures quickly and correctly. Quality workmanship on every job so your fixtures work perfectly and last for years to come in Carlsbad, CA.

Pipe Repair & Replacement
Cracked, corroded, or leaking pipes cause serious water damage fast. We repair and replace residential pipes quickly and correctly using quality materials built to last — minimizing disruption to your home and daily routine.

Toilet Installation & Repair
Whether you need a new toilet installed or an existing one repaired we handle it fast and professionally. From running toilets and weak flushes to full replacements we fix the problem correctly the first time.

Bathroom & Kitchen Plumbing
From sink installations and garbage disposals to full bathroom plumbing rough ins — we handle all kitchen and bathroom plumbing needs for North County San Diego homeowners. Clean work, upfront pricing, done right.

Bathroom Remodels
Remodeling your bathroom? We handle all the plumbing work from start to finish in North County — relocating pipes, installing new fixtures, and making sure everything is up to California code before the walls close up.

Water Pressure Issues
Low or inconsistent water pressure makes everyday tasks frustrating and can signal a bigger problem in your plumbing system. We diagnose the root cause accurately and fix it fast — restoring full water pressure throughout your home.

Emergency Home Plumbing Services
Burst pipes, overflowing toilets, and sudden leaks can't wait. We respond to residential plumbing emergencies 24 hours a day 7 days a week throughout North County San Diego — fast response, upfront pricing, job done right.

Why Us
#1 Trusted Home Plumbing Service Team in North County San Diego
Licensed & Experienced
With years of hands-on experience and full licensing in California, our team delivers quality workmanship you can trust on every job.
Honest & Transparent
No surprises, no hidden fees. We give you upfront quotes before any work begins so you always know exactly what you're paying for.
Fast & Reliable Service
We show up on time, work clean, and don't leave until the job is done right. Same-day service available for urgent repairs.
Frequently Asked Questions
What home plumbing problems should I never ignore?
Never ignore water stains on walls or ceilings, dripping faucets, running toilets, low water pressure, slow drains, or any visible leaks. These are all signs of underlying plumbing problems that get significantly worse and more expensive the longer they go unaddressed. A small drip or slow drain today can become a burst pipe or sewage backup tomorrow.
Do you offer full bathroom remodels?
Yes — we handle all the plumbing work for full bathroom remodels throughout North County San Diego. From relocating drain and supply lines to rough-in plumbing for new fixtures, shower installations, and making sure everything is up to California code before the walls close up. We work alongside your contractor or general remodeler — handling strictly the plumbing side so the whole project runs smoothly from start to finish. Contact us to discuss your bathroom remodel and we’ll provide a free upfront estimate.
When should I repair vs replace a plumbing fixture?
As a general rule if a fixture is less than 10 years old and the repair cost is less than half the replacement cost repair is usually the right call. If the fixture is older, frequently breaking down, showing visible corrosion, or you’re simply looking to upgrade — replacement is the smarter long term investment. We give you an honest assessment of your specific situation before recommending anything. Our fixture installation and repair services cover everything from faucets and sinks to toilets, showers, and valves.
What plumbing work is involved in a bathroom remodel?
“A bathroom remodel typically involves relocating or extending existing drain and water supply lines to accommodate new fixture positions, installing new supply lines and shut off valves, rough-in plumbing for new sinks, toilets, and showers, and making sure everything is up to California code before walls close up. Getting the plumbing right during a remodel is critical — mistakes discovered after tiling and drywall are extremely costly to fix. Our bathroom remodel plumbing services ensure everything is done correctly from the start so your remodel goes smoothly from rough-in to final inspection.
Do I need a permit for bathroom plumbing work in California?
Yes — in California a permit is required for most bathroom plumbing work that involves moving or adding new drain or supply lines, adding fixtures, or modifying existing plumbing. Simple fixture replacements in the same location typically don’t require a permit but anything involving pipe relocation does. Unpermitted plumbing work can create serious problems when selling your home and may not pass inspection. We handle the permit process on your behalf and ensure all work is performed to code. You can learn more about California residential plumbing permit requirements through the California Department of Housing and Community Development.
How long does a typical home plumbing repair take?
Most standard home plumbing repairs — fixing a leaky faucet, replacing a toilet, repairing a pipe, or installing a fixture — take between 1-3 hours. More complex jobs like bathroom remodel rough-in work, main water line repair, or slab leak repair can take a full day or longer depending on the scope. We always give you a realistic time estimate upfront before starting any work. For urgent repairs we offer same-day service throughout North County San Diego — call us at 760-626-4204 and we’ll get there fast.
What should I do to maintain my home's plumbing system?
The best thing you can do is stay proactive. We recommend having your plumbing inspected annually — checking for slow leaks, testing water pressure, inspecting shut off valves, and flushing your water heater. Avoid pouring grease down kitchen drains, use drain screens to catch hair and debris, and never flush anything other than toilet paper. The EPA’s WaterSense program offers excellent free resources for homeowners on water efficiency and plumbing maintenance. If you notice anything unusual — a spike in your water bill, a change in water pressure, or a new drip — call us early before it becomes a bigger problem.
Are you licensed and insured for residential plumbing work in California?
Yes — Alonso Plumbing Inc. is fully licensed, insured, and bonded in California. Our CA Contractor License number is #1145697 which you can verify directly on the CSLB website. Every residential job is performed by experienced licensed plumbers who treat your home with the same care and respect they would their own.
Service Areas
Proudly Serving North County San Diego & Surrounding Areas
Carlsbad | Oceanside | Vista | San Marcos | Escondido | Encinitas | Fallbrook | Bonsall | Del Mar | Solana Beach | Rancho Santa Fe | San Diego | Temecula | Murrieta | Menifee | Rancho Cucamonga

25+
Years of Experience
Our Legacy
25+ Years of Plumbing Experience
With over 25 years of hands-on plumbing experience, the Alonso family has built a reputation for honest work, fair pricing, and showing up when it matters most. From simple repairs to complex commercial jobs — we’ve seen it all and fixed it all.
- Licensed & Insured in California
- Family Owned & Operated
- Serving North County Since 2000
Got a Plumbing Problem? We're Ready to Help.
Contact us today for fast, reliable service across North County San Diego and all surrounding areas.
