About the shop
About Union Plumbing Co., plumbers in Matthews, NC
Union Plumbing Co. is a residential plumbing company in Matthews, NC. Ray Delgado runs the shop, and the phone is answered around the clock.

What the shop does
Union Plumbing Co. works on houses: leaks, drains, water heaters, sewer lines, repipes, fixtures and gas lines, for homeowners across Matthews, Mint Hill, Indian Trail, Weddington, Waxhaw and Pineville. Most of the calls come from the houses you'd expect around here: 1970s ranches with galvanized supply lines, 1990s subdivisions with polybutylene, and newer builds with PEX and tankless water heaters.
The phone is answered around the clock. Some problems need a plumber tonight and some can wait for a weekday visit, and whoever answers will tell you which kind yours is.

What happens when you call.
The same four steps, whether it's two in the morning or Tuesday after lunch.




What the truck carries
- Common supply and drain fittings in copper, PEX, PVC and black iron
- Shutoff valves, supply lines, wax rings, flappers, fill valves and faucet cartridges
- A drain cable machine, and a sewer camera for lines that keep clogging
- Listening gear and a thermal camera for leaks behind walls and under slabs
- A wet-vac, drop cloths and work lights for the crawlspace and the cleanup
How a service call runs
You call, and a person picks up. They ask what the water is doing, where the house is, and whether anyone has found the main shutoff. Then you get an arrival window on the phone.
At the house, the plumber looks at the problem first, explains what's wrong and what the fix costs, and you decide whether to go ahead. If something else turns up once a wall, floor or crawlspace is open, you hear about it before more work is done. When the repair is finished, it gets tested under normal use and the work area gets cleaned up.
He showed me the corroded fitting before he replaced it, told me the price, and cleaned up under the sink when he was done.
Homeowner, Matthews · Sample
What we check before we leave
- The repair itselfRun under normal use: faucets on hot and cold, toilets flushed a few times, drains run full, joints checked for weeping.
- The shutoffs we touchedAny valve closed for the job gets opened back up and checked, so it isn't left half-closed or dripping at the stem.
- The work areaWater vacuumed up, old parts hauled out, and the cabinet floor or crawlspace access left clean.
- What you should knowWhere your main shutoff is, what to watch for over the next few days, and anything else the plumber noticed while they were there.
License and insurance
Union Plumbing Co. carries a North Carolina plumbing contractor license and general liability insurance. The license number is listed in the footer of every page on this site.
Questions people ask before they call
Who runs Union Plumbing Co.?
Ray Delgado runs the shop. Union Plumbing Co. is a residential plumbing company based on W. John St. in Matthews, working the south and east side of Charlotte. When you call, a person answers, takes down what's going on at the house, and gets a plumber headed your way.
What kind of plumbing work do you do?
Residential plumbing: leaks, drains, water heaters, sewer lines, whole-house repipes, toilets, faucets and disposals, and gas lines for ranges, water heaters and grills. Most of the work is on houses around Matthews, Mint Hill, Indian Trail, Weddington, Waxhaw and Pineville. If your problem isn't on that list, call and ask.
Which towns does Union Plumbing Co. cover?
Matthews, Mint Hill, Indian Trail, Weddington, Waxhaw and Pineville, on the south and east side of Charlotte. The shop is in Matthews, so those are the towns a plumber can reach without a long drive. If you're near the edge of that area, call, and whoever answers will tell you whether a plumber can get there and when.
Are you licensed and insured?
Yes. Union Plumbing Co. holds a North Carolina plumbing contractor license and carries insurance. The license number is listed in the footer of this site rather than repeated here, and the plumber can show you the license at the house if you ask. On this sample site, the number is a placeholder.
