A water heater usually gives out at the worst possible moment. Our team handles fast repairs and hot water heater replacement for Orange County homes, so you are not stuck with cold showers for long.
Trustindex verifies that the original source of the review is Google.
We've had a great experience with Precision Plumbing. Most recently, they helped us locate and repair three separate leaks under our concrete slab. They started with a free inspection and did a very thorough job diagnosing the issue, clearly explaining what was going on and what our options were. Their approach was professional, direct, and honest, no upselling, just practical solutions and clear communication. The work was handled quickly and efficiently. I felt confident in their expertise the entire time. We had also used them previously for a midnight plumbing emergency, and they were incredibly responsive and reliable, one of the only companies willing to come out at that time which is why we trusted them again for this most recent project. Martin & his team are super knowledgeable, dependable, a great value for what they provide and easy to work with. I highly recommend Precision Plumbing!!!Posted on Google![]()
darlene arriazaTrustindex verifies that the original source of the review is Google.
Our main water line sprung a leak and it was such a inconvenience when you don't have proper running water. After finding Precision on Google, I decided to give him a call. He was very responsive and was the first out of 3 plumbers to arrive next day in the AM. He was very easy to talk to and didn't try to up sell like the other ones. His quote was fair and I didn't feel like I was getting ripped off. I would call them back if I need any plumbing services in a heart beat!Posted on Google![]()
MelTrustindex verifies that the original source of the review is Google.
Our main sewer line had been giving us issues for over a year. Slow drains, weird smells in the backyard, and finally a backup in the guest bathroom that pushed us over the edge. Got three quotes for a sewer replacement for our home in Laguna and these guys came in not the cheapest but definitely the most thorough. The tech ran a camera down the line first and walked me through exactly what we were looking at on his tablet. Turned out we had old clay pipe with two big root intrusions and a partial collapse near the cleanout. They scheduled the work for the following week and got it done in two days. Crew was respectful, kept the yard damage to a minimum, and even reseeded the section of grass they had to dig up. Haven't had a single issue since and I sleep better knowing it's handled.Posted on Google![]()
Sharon GarciaTrustindex verifies that the original source of the review is Google.
I’m usually very nervous to call any sort of service company. I feel like they always make me feel stupid and rip me off. My toilet was clogged and I was already embarrassed to contact anyone. When I contacted Martin, he was immediately kind and explained what he would be doing. He did the job perfectly and even left my bathroom cleaner than it was before!Posted on Google![]()
Alexis ReaganTrustindex verifies that the original source of the review is Google.
Really happy with the service from Precision Plumbing. I called them out for a plumbing issue at my home and they showed up quickly, which I really appreciated. The plumber was easy to talk to, explained what was going on in and got everything fixed without any hassle, no confusion, just straight to the point and got the job done right. Overall, solid experience. I’d definitely use them again if I run into any plumbing problems.Posted on Google![]()
Ricky LyTrustindex verifies that the original source of the review is Google.
Was bracing for a hard sell when our 14 year old water heater started leaking. Two other plumbers basically tried to push tankless on me before they even looked at the unit. Called Precision in Mission Viejo and he came out the next morning, walked through both options, laid out the real cost difference and the gas line work tankless would need. No pressure either way. We went with a 50 gallon tank because the math made sense for our family. He pulled the permit, did the install the next day, hauled the old one out, and strapped the new one properly for earthquake code. Straightforward company.Posted on Google![]()
Bahar GhauomiTrustindex verifies that the original source of the review is Google.
Slow drains in pretty much every sink and tub at the same time, which I now know is not a good sign. Called Precision on a Monday morning and they came to the house by 1pm. He camera scoped the line first, showed me a wall of grease and gunk about thirty feet out, and explained why snaking it would only buy me a few months. They hydrojeted the whole line for a fair price. Drains have been running smoothly. Saved as #1 Plumber lol.Posted on Google![]()
DiegoTrustindex verifies that the original source of the review is Google.
Both units in my duplex were backing up and I knew it was time to get the main line looked at. A friend in Laguna had used Martin before and said to call him. He came out, scoped the line first so we could actually see what was going on in there, and then hydrojetted the whole thing. years of buildup just gone.Posted on Google![]()
viviane rosalesTrustindex verifies that the original source of the review is Google.
These things always seem to happen on the weekend - the outlet from my water heater started leaking. I did a Google search to find a plumber that was open and found Precision Plumbing in Mission Viejo. Within an hour of my call, Martin was at my door. He diagnosed the problem and gave me some options. I chose getting a new water heater and fixing associated fittings. Martin was back out Monday morning to do the work. They were prompt, professional and friendly. They knew I had a tight schedule and they finished earlier than expected. They double checked to make sure everything was working, including replacing the pressure regulator to the house, which probably saved me from an even bigger future repair bill. I highly recommend Precision, for your local plumbing needs. Great service and fair pricing.Posted on Google![]()
Bethlehem MitachewTrustindex verifies that the original source of the review is Google.
Martin helped us in the past with a clogged drain and this time with a slab leak. Again, I can't say enough good things about his team. From the start, it was clear they really know their stuff and are incredibly transparent and honest. They were thorough with the inspection and took the time to explain everything in detail. The crew that came to do the repipe was just as impressive. They were hardworking, knowledgeable, and cleaned up after themselves. It was very obvious they knew exactly what they were doing and were great at it!Posted on Google![]()
Audrey Schreck




A failing water heater disrupts the whole household. Showers turn cold, dishes pile up, and laundry has to wait. Water pooling around the base of the tank can soak floors, walls, and stored items in the garage. A pilot that keeps going out or water that never gets hot enough are also signs that something is wrong.
Precision Plumbing repairs gas and electric water heaters, including both tank and tankless units. Our water heater leak repair service finds out whether the leak comes from a valve, a fitting, or the tank itself. We come prepared with common parts like thermocouples, gas valves, heating elements, and relief valves to fix many problems in one visit. If the unit is failing, we explain your options right away so you can decide with confidence.
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Many households run out of hot water when several people shower back to back. A standard tank also takes up valuable garage or closet space and keeps heating water even when no one is home. Switching to tankless is appealing, but the upgrade involves more than swapping one unit for another. Gas line size, venting, and electrical needs all affect how well the new system performs.
Our team sizes each tankless unit to your home’s peak hot water demand, so performance holds up when it matters. We check whether your existing gas supply can handle the higher load and arrange a gas line installation upgrade when needed. Proper venting and a dedicated electrical connection are set up as part of the job. You get on demand hot water, more open space, and less wasted energy.
Scale on glassware, changes in taste, and residue around fixtures can relate to what is present in the water.
Gas work leaves no room for guessing. New runs for ranges, dryers, fire pits, and outdoor kitchens each need correct sizing, secure connections.




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We inspect wall surfaces for safe and accurate installation preparation. Precision Plumbing opened in 2000 and has continued serving the area for more than two decades.

Martin Reagan founded the company and stays involved in the work itself. You speak with the person behind the business rather than being passed through a large call center

Recommendations stay transparent, and nothing lands on a bill without explanation. We explain the reasoning behind each option so you understand what the work involves before making a decision.

Houses, offices, retail spaces, apartment buildings, and commercial facilities all fall within our range. Landlords, managers, and contractors receive the same straightforward approach to the plumbing work.

Precision Plumbing
Don’t worry! Send your questions to us.
Nothing gets priced over the phone without seeing the actual situation. Your heater gets inspected, tested, and compared against everything connected to it. Age, scale, pressure, connections, and venting all shape what comes next.
Repair and replacement each get explained in plain terms with the reasoning attached. Cost, remaining service life, condition, and potential future issues all factor into the discussion. The decision stays yours.
Parts go in, or the new unit does, with the appropriate connections and installation details addressed. Temperature, operation, connections, and relevant venting get checked before we pack up.

A traditional tank is still the right choice for many homes. It costs less upfront and works well when sized correctly for the household. The problem is that many tanks are installed with the wrong capacity, poor venting, or missing safety parts. These mistakes lead to short hot water supply, wasted gas, and real safety risks. When a new gas heater needs a larger or relocated supply pipe, we handle it through our gas line repair service.
With more than 26 years of experience, our technicians know how to match the right tank to each home. A 50 gallon water heater replacement is common for families of three to five, while smaller households may do well with 40 gallons. We connect the gas supply safely, set up proper venting, and add an expansion tank where code requires one. Every unit is tested for leaks and correct burner operation before we leave.
When a heater swap turns into a larger job, the work is handled by our Plumbing Contractor side.

When a tank starts leaking from the body, repair is no longer an option. Corrosion has broken through the steel, and the leak will only get worse. Waiting several days for a new unit means cold water and a growing risk of water damage. For most families, a fast swap is the only practical choice.
We keep popular tank sizes on hand, so your water heater installation can often happen the same day you call. Our team drains and removes the old unit, sets the new one in place, and connects it to code. We also replace worn supply lines and shutoff valves so the new heater starts on a solid footing. Hot water is usually back within a few hours of our arrival.

Hard water leaves minerals behind every time the tank heats. That sediment settles at the bottom, where it forms a barrier between the burner and the water. The heater has to work harder, uses more energy, and wears out sooner. Rumbling or popping noises from the tank are a common sign of heavy buildup.
Our water heater maintenance visit drains the tank and clears out the sediment that has settled inside. We inspect the anode rod, test the temperature and pressure relief valve, and check the burner or heating elements. For tankless units, we descale the heat exchanger to keep water flowing at full temperature. If buildup keeps returning quickly, a hard water treatment system can reduce minerals before they reach the heater.

+1 949-235-1188
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Most tank water heaters last 8 to 12 years, while tankless units often last up to 20 years with regular care. Hard water, high water pressure, and skipped maintenance can shorten either lifespan. Checking the manufacture date on the unit’s label helps you plan a replacement before it fails.
Repair usually makes sense for a newer unit with one failed part, such as a thermostat, heating element, or gas valve. Replacement is the better choice when the unit is over 10 years old and needs a costly repair. Rising energy bills and frequent breakdowns also point toward a new heater.
This smell usually comes from bacteria in the tank reacting with the magnesium anode rod, which produces hydrogen sulfide gas. Flushing the tank and switching to an aluminum zinc or powered anode rod often solves the problem. If the smell is in both hot and cold water, the issue may be the water supply instead.
Yes. California law requires water heaters to be braced, anchored, or strapped to resist movement during an earthquake. Most installations use two straps, one in the upper third and one in the lower third of the tank, and the permit inspector checks them during the final review.
A tank that is too small for the household is the most common cause. Sediment buildup, a broken dip tube, or a failed lower heating element in electric units can also cut your hot water supply short. A plumber can test the unit to find the exact cause.