Family-run Tucson plumbing company since 1948, aiming to reach emergencies within an hour.
Information last verified: September 13, 2026
Full profileInformation last verified: September 13, 2026
We hold this number from a source other than the Registrar itself, so we are not presenting it as confirmed. Check it directly before you hire. Look it up on roc.az.gov
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Tucson throws problems at plumbing that Phoenix mostly does not. Winter nights here freeze hard enough to split exposed pipes and backflow preventers, a large part of the central city was built decades before modern supply materials, and on the edges of Pima County plenty of homes are not on the sewer at all.
The city is also very spread out, from Marana to Vail, so where a plumber is based matters on an urgent call. We looked at the Tucson plumbing companies with the strongest reputations and chose one, with alternatives listed below.
Cal's Plumbing has been family-owned and run since it opened in 1948, and works from South Irving Avenue, near Tucson International Airport.
It is a plumbing company rather than a heating-and-cooling company that also does plumbing. Its published list runs from everyday work — leak detection, drain cleaning, water heaters including tankless, toilets, faucets and garbage disposals — to the heavier end: repiping, slab leak repair, camera inspection, pipe lining, hydro jetting, sewer lines, septic tanks, gas lines, backflow prevention and water treatment. Standard hours are 8am to 5pm Monday to Saturday, and for emergencies they state a goal of arriving within one hour.
Plumbing is the whole business. Many of Tucson's best-known names are heating and cooling companies with a plumbing division. Cal's has done plumbing, and only plumbing, since 1948, and their service list reaches the specialist work — pipe lining, hydro jetting, slab leaks, septic — that generalists often subcontract.
Seventy-plus years under the same family. In a trade where companies are regularly bought and rebranded, that continuity is unusual.
A top-tier reputation at real scale. Cal's holds one of the highest customer ratings among Tucson plumbers across thousands of customers.
They publish three ROC licence numbers on their own site, which makes checking them straightforward.
A central location. South Irving Avenue is reasonably placed for most of the city. The main alternative with a comparable reputation, Al Coronado Plumbing, is based on the far northwest side near Marana — a better choice if that is where you live, and listed below.
The honest caveat: standard hours are Monday to Saturday, 8 to 5. Emergency service is offered, but ask what response looks like on a Sunday or overnight before you count on the one-hour goal.
Check the licence first. Ask for the ROC number and search it on the free public register, by number rather than name, since licences are held by legal entities whose names can differ from the one on the truck. Arizona's Recovery Fund does not cover work by a contractor whose licence was inactive or expired when you signed. Our guide to checking an Arizona contractor's licence explains the statuses.
Ask where they are dispatching from. Tucson is large and spread out. A company twenty minutes away is a different proposition from one an hour away when water is on the floor.
If you are on septic, say so when you call. Not every plumber works on septic systems. Homes on the unsewered edges of the county need a company that does.
Get the price structure before work starts. Ask whether the quote is flat rate, what would change it, and whether any diagnostic fee is credited if you go ahead.
For slab leaks, repipes and sewer lines, get a written scope with exclusions listed, and a second quote. Ask whether pipe lining is an option before agreeing to dig — for some sewer lines it avoids excavation entirely.
Confirm the warranty covers labour, not only parts.
Hard freezes happen here. Tucson's elevation brings winter nights below freezing, and every so often a cold snap is severe enough to cause widespread burst pipes. The parts most at risk are the ones outside: exposed supply lines, hose bibs, irrigation lines, pool equipment and especially backflow preventers, which sit above ground and split easily. Insulating exposed pipes and covering backflow preventers before a freeze is cheap insurance.
Older central Tucson has older plumbing. Neighbourhoods around downtown and the university include homes many decades old, where galvanised supply pipe, cast iron drains and clay sewer lines are all still found. Declining water pressure over years, rust-coloured water and repeat main line clogs from root intrusion all point that way.
Not everyone is on the sewer. On the outskirts of the Tucson area, many homes use septic systems. They need periodic pumping and inspection, and a failing system is a job for a plumber who specifically handles septic work.
Hard water. Water in the Tucson area is mineral-heavy, which scales up water heaters and shortens their life, and clogs faucet aerators and valve cartridges. It is why water heaters and water treatment equipment are such a large part of residential plumbing work here.
Slab-on-grade construction is standard, so leaking supply lines under the floor are a recurring problem. Proper leak detection before opening a slab saves money and flooring.
Our pick is based on South Irving Avenue near Tucson International Airport and serves Tucson and the surrounding area. For homes on the far northwest side — Marana, Picture Rocks, Oro Valley — the northwest-based alternative listed below may reach you faster.
These are not paid placements. They are additional companies serving this area that we think are worth a call.
Family-owned northwest Tucson plumber serving the area since 1980, open until 8pm six days a week.
6149 N Travel Center Dr, Tucson, AZ
Tucson heating and cooling company in business since 1959, with 24/7 repair service.
4551 S Alvernon Way, Tucson, AZ
Central Tucson cooling and plumbing company, open 24/7 for emergencies, publishing four ROC licences.
1145 E Fort Lowell Rd, Tucson, AZ
Before a forecast freeze, insulate exposed supply pipes, disconnect garden hoses, cover hose bibs, and wrap or cover the backflow preventer — it sits above ground and is one of the first things to split. Know where your main water shut-off is so you can turn it off quickly if a pipe does burst.
If water is flowing and you cannot stop it, yes — shut off the water at the main or at the valve upstream of the preventer, then call a plumber. Burst backflow preventers are one of the most common freeze repairs in Tucson, and they usually need replacing rather than patching.
No. If your home is not connected to the sewer, say so when you call and ask specifically whether the company services septic tanks. Our pick lists septic work among its services.
If the pressure has dropped gradually over years, corroding galvanised supply pipe is a common cause in older homes — it narrows from the inside. A sudden drop is more likely a failed pressure regulator, a partly closed valve or a leak. A plumber can usually tell which quickly.
We shortlist companies using public information and the overall balance of customer feedback across review platforms, then choose an Arizona Z Best pick by weighing reputation, service range, operating history, availability, licensing transparency and how conveniently located the company is for the city. Every detail on this page is taken from the company's own website. We record contractor licence numbers with their true source and never call a licence verified unless we checked the ROC register ourselves. Nothing has been sold for this territory.
Read our full ranking methodology. Sponsored and Featured Partner placements are paid and always labelled. They are tracked separately from editorial picks and do not decide them.