San Dimas plumber for leaks, drains, sewer lines and water heaters
Rapid Rooter Plumbing handles San Dimas plumbing for homes and small businesses in ZIP 91773. We are licensed (CSLB #[CSLB NUMBER]) and you get the price in writing before we start. When you book, we text you an arrival window. When we are on the way, we text again.
What should you look for in a San Dimas plumber?
Check four things before you hire anyone. We do all four.
- An active California contractor license. Look up any license on the Contractors State License Board (CSLB) website. It also shows whether the company carries a bond and workers’ comp.
- A price in writing before work starts. Not a vague phone estimate billed higher later.
- A plumber who shows you the problem with a photo, the old part, or a camera feed.
- A permit for work that needs one, like a water heater replacement.
Water where it should not be? Do this first.
- Shut off the main water valve. In many homes it is on the front wall near the hose faucet, in the garage, or in a box near the meter. Turn it until the water stops.
- Cut power to wet areas. If water is near outlets, lights or the panel, flip that breaker. Do not stand in water to do it.
- If the water heater is leaking, close the cold water valve on top of the tank and turn the gas control to off, or flip its breaker.
- Take photos and a short video. Your insurance company will ask for them.
- Call or text us and tell us what you see.
San Dimas plumbing problems we fix
- Emergency plumbingBurst pipes, floods and sewer backups.
- Leak detection and slab leaksElectronic listening equipment finds the leak before we cut anything.
- Drain cleaning and hydro jettingSinks, tubs, toilets and main lines.
- Sewer linesCamera inspection, repair and lining.
- Water heatersRepair, replacement, tankless and heat pump.
- RepipingCopper or PEX, whole house or part.
- Water softeners and filtersSized to your water, not a guess.
- FixturesFaucets, toilets, garbage disposals and shower valves.
- Pressure problemsRegulators, water hammer and low flow.
- Gas linesRepairs, new lines and appliance hookups.
What is your house trying to tell you?
Not sure which row fits? Text us a photo. We will tell you how urgent it is, even if it turns out to be a small fix.
| What you notice | Likely cause | How soon to call |
|---|---|---|
| Water bill jumped and nothing changed at home | Hidden leak, often under the slab or in the yard line | This week |
| Warm spot on the floor | Hot water pipe leaking under the slab | Today |
| Running water sound with everything off | Leak in a wall, the slab or the yard line | Today |
| Brown or rusty water | Old steel pipe corroding, or a rusting tank | This week |
| Rotten-egg smell from hot water only | Bacteria in the water heater tank, not the street supply | This week |
| Rumbling or popping from the heater | Mineral sediment baking on the tank bottom | This week |
| Several drains slow or gurgling | Clog in the main sewer line | Today |
| Dirty water in the lowest tub or shower | Main line blocked or broken | Now, and stop using water |
| Low pressure at every faucet | Failing regulator, a leak, or scale in old pipes | This week |
| Loud bang when a faucet shuts off | Water hammer from high pressure or a worn air chamber | Soon |
| Shower swings hot and cold | Worn valve cartridge, mixing valve or heater trouble | Soon |
| Toilet keeps running | Worn flapper or fill valve | Soon, it wastes water |
| Smell of gas | Gas leak | Leave first, call 911 and SoCalGas |
Why San Dimas plumbing wears out the way it does
Most San Dimas plumbing problems trace back to a few local causes. Here they are.
The water is hard
Golden State Water Company runs the San Dimas water system. Its 2024 water quality report lists hardness between 76 and 350 mg/L (about 4.4 to 20 grains per gallon), with a reported level near 250 mg/L, about 15 grains. Plumbers often call anything over 180 mg/L very hard. It is not a drinking-water safety problem. It is a pipe and appliance problem: white crust on faucets, clogged aerators, and sediment that makes a tank heater rumble.
Many homes are older
Census data puts the median San Dimas home at a build year around 1976. About 62% are single-family houses and about 8.6% are mobile homes. Older houses may still have galvanized steel supply lines, cast iron drains or clay sewer pipes. Many homes also sit on concrete slabs, so some supply lines run under the floor where you cannot see a leak.
Rain, slopes and tree roots
San Dimas gets about 18.6 inches of rain a year, most of it from November to April. Wet soil tests every sewer line, and tree roots find cracks in older clay and cast iron pipes. Homes on slopes can have much higher or lower pressure than the street. A pressure regulator keeps it in a safe range, and we check it with a gauge on your hose faucet.
Earthquakes
California law requires water heaters to be strapped to the wall. We use two straps, one in the upper third of the tank and one in the lower third, and we check the gas line connection too, because a tipped heater can pull a gas line loose.
Replacing a water heater in 2026: permits, air rules and rebates
Permits
A water heater replacement needs a plumbing permit in most California cities, even for a like-for-like swap. We pull the permit and book the inspection. [VERIFY with City of San Dimas Building and Safety before publishing.]
Air rules
San Dimas sits inside the South Coast Air Quality Management District. In June 2025 its board voted not to approve changes to the residential water heater rule, so the older rule stays in place. A separate rule covers larger gas units, including many gas tankless heaters, with zero-NOx deadlines starting in 2026 at the earliest. Last checked [LAST REVIEWED DATE].
Rebates and credits
The federal 25C tax credit ended for equipment placed in service after December 31, 2025. California’s TECH Clean California single-family rebates were fully reserved by early 2026. Funds can reopen, so check the TECH Clean California site and your utility before you buy.
What we do
We tell you what repair costs, what replacement costs, and what a heat pump model would cost. Then you choose. We do not push one type.
What a San Dimas plumber costs
These are our prices as of [PRICE UPDATED]. They are what you pay, parts and labor, quoted in writing before work starts.
| Job | Typical price | What moves the price |
|---|---|---|
| Clear one drain | $[drain low] to $[drain high] | Clog depth, access, whether there is a cleanout |
| Hydro jetting, one line | $[jet low] to $[jet high] | Line length, scale or roots |
| Sewer camera inspection | $[camera low] to $[camera high] | Line length, access point |
| Water heater repair | $[wh repair low] to $[wh repair high] | The part that failed |
| Water heater replacement, 40-gallon tank | $[wh low] to $[wh high] | Gas or electric, location, venting, permit, code upgrades |
| Tankless water heater install | $[tankless low] to $[tankless high] | Gas line size, venting, electrical |
| Slab leak detection | $[detect low] to $[detect high] | Home size, access |
| Slab leak repair | $[slab low] to $[slab high] | Reroute, lining or break-out, floor repair |
| Whole-house repipe | $[repipe low] to $[repipe high] | Size, PEX or copper, wall repair |
| Pressure regulator | $[prv low] to $[prv high] | Location, access |
- A phone price is a range. We cannot see your pipes. After we look, you get one firm price in writing.
- The service fee is $[DIAGNOSTIC FEE]. [Diagnostic credit policy]
- Nights and weekends: [After-hours policy]
- If we cannot fix it, [no-fix policy]
- Second opinion? Show us the other quote. We will tell you which items are urgent and which can wait.
How a visit from Rapid Rooter works
- You call or text. Tell us what you see. Photos help.
- We text an arrival window, then text again when we are on the way.
- We find the problem and show you. That might be a photo, the old part or the camera screen.
- You get options and a written price. We do not start until you say yes.
- We fix it and clean up. We wear shoe covers, lay down floor protection, and haul away the old parts.
- We call the next day to check that it is still working. If a permit was needed, we book the inspection.
Our San Dimas plumbing service area
We work across San Dimas, ZIP 91773. That includes Old Town along Bonita Avenue near the Walker House and the old train depot, Via Verde, the streets near San Dimas Canyon Park, the Puddingstone Reservoir and Bonelli Regional Park side near Raging Waters, and the Arrow Highway and Foothill Boulevard corridors. That covers everything from the 57 and 210 freeway interchange up to the foothills.
We also take calls in La Verne (91750), Glendora (91740 and 91741) and Claremont (91711). [Confirm nearby areas you want to list.]
Help for your kind of home
Older homes
We check pressure, look for green pinhole stains on copper, and test for hidden leaks before we suggest a repipe.
Mobile homes
About 1 in 12 San Dimas homes is a mobile home. The water lines, drains and gas line run under the floor, so repairs start with a crawl under the home. We tell you if the fix is simple before we cut anything.
Landlords and property managers
Send us the unit address and the tenant’s number. We call the tenant, text you photos, and send one invoice per unit with each item listed.
Helping a parent from out of town
You can approve the work by phone. We send photos before and after.
Buying or selling a home
Ask for a sewer camera inspection. Check the age on the water heater’s data tag. Ask whether past plumbing work had permits, because unpermitted work can slow a sale.
Shops and small offices
Toilets, sinks, floor drains and water heaters, scheduled around your hours.
What tends to go wrong, and when
| When | What we see | What helps |
|---|---|---|
| November to April | Backed-up sewer lines and clogged yard drains in the wet season | Clear roots and test slow drains before the heavy storms |
| Spring | Dripping outdoor faucets and cracked irrigation parts | Check hose faucets and irrigation lines once the rain stops |
| Summer | Higher bills from watering and long showers, so hidden leaks show up as bill spikes | Do the meter test if the bill jumps |
| October and November | Holiday guests test old drains and toilets | Clear slow drains and check the water heater’s age before company comes |
The San Dimas plumbers behind the truck
[OWNER NAME] runs Rapid Rooter Plumbing. [Owner bio: years in the trade, a line about living or working in the area.]
[TECH NAME 1], [tech title]. [Short tech bio.]
[TECH NAME 2], [tech title]. [Short tech bio.]
Rapid Rooter Plumbing is operated by [LEGAL BUSINESS NAME], CSLB #[CSLB NUMBER]. [Insured and bonded.] You can verify us on the CSLB website.
What San Dimas customers say
Local questions we hear
My house was built in the 1970s. Should I worry about my pipes?
The median San Dimas home was built around 1976, so you have plenty of company. Houses from that era often have copper supply lines and cast iron or plastic drains. Copper lasts a long time, but hard water and high pressure can wear tiny pinholes in it. Watch for green stains on pipes, damp spots and a rising bill. California plumbing code calls for a pressure regulator when static pressure could go above 80 psi. An inexpensive gauge screws onto a hose faucet and tells you where you stand.
I am buying a house here. What should I check first?
Find the main shutoff and make sure it turns. Read the water heater’s data tag for its age, and look for two straps. Ask where the cleanout is. Order a sewer camera inspection before closing. Ask for permits on any past plumbing work. We can check the straps, the shutoff and the cleanout in one visit.
Why is there white crust on my faucets and showerhead?
That is minerals left behind when hard water dries. Soak an aerator or showerhead in vinegar for an hour, but check the maker’s care sheet first, because vinegar can dull some finishes. If the crust comes back fast, the water is the cause. We can test it and tell you honestly whether a softener makes sense for your home.
I smell gas near my dryer. Where do I start?
Leave the house and call 911 and SoCalGas from outside. The gas company shuts off service and checks the meter. Pipe inside your property after the meter is generally the homeowner’s to repair, so once the gas company clears the meter, call a licensed plumber to find and fix the leak.
Questions about San Dimas plumbing
How much does a plumber cost in San Dimas, CA?
Our price for small San Dimas plumbing repairs usually runs $[small low] to $[small high]. Water heater replacements run $[wh low] to $[wh high]. A whole-house repipe runs $[repipe low] to $[repipe high]. The table above lists each job and what changes the price. You always get one firm price in writing before we start.
What counts as a plumbing emergency?
Anything causing damage or a safety risk: burst pipes, water you cannot stop, sewage coming up in a tub or shower, no water to the whole house, a leaking water heater, and any gas smell. A slow drip or a running toilet can wait for a normal appointment.
Is the price you give me on the phone final?
No. Without seeing the pipes, we can only give a range. After we look, you get one firm price in writing, and we do not start work until you approve it.
How do I know if I have a slab leak?
Run the meter test. Turn off every faucet and appliance that uses water, then look at your water meter. If the small dial or triangle is moving, water is going somewhere. Other signs are a warm spot on the floor, a running-water sound when everything is off, and a bill that jumps with no change in use.
Can you fix a slab leak without breaking the floor?
Sometimes. After we pinpoint the leak, there are three paths: reroute the pipe through the walls or attic, line the pipe from the inside, or open the slab and replace the section. The right one depends on where the leak is and how old the pipes are. We show you each option with a price.
Is San Dimas water hard?
Yes. Golden State Water Company’s 2024 report lists hardness between 76 and 350 mg/L, with a reported level near 250 mg/L. Many plumbers call anything over 180 mg/L very hard. The trouble is scale on fixtures and sediment in tank water heaters.
Do I need a permit to replace a water heater in San Dimas?
In most California cities, yes, even for a swap of the same type. We pull the permit through the City of San Dimas and schedule the inspection. [VERIFY with City of San Dimas Building and Safety before publishing.]
Do you give a warranty on your work?
[Warranty terms go here.]
Need a San Dimas plumber today?
Call or text a photo. You get an arrival window, a firm price in writing, and a plumber who explains what is wrong.