Nationwide Plumbers is a NYC Licensed Master Plumber (License #2023) serving Maspeth since 1984. We dispatch 24/7 and handle commercial plumbing, backflow testing, gas lines, sewer work, boilers and water heaters for homes and businesses. Call 718-748-2727.
Maspeth has two sides. The residential blocks around Grand Avenue, 69th Street and Flushing Avenue are lined with attached and semi-detached two-family houses, many of them brick and frame homes from the early and middle 1900s, often with a shared driveway and a finished basement. The other side is industrial: warehouses, distribution buildings, shops and yards that run toward Newtown Creek and Maspeth Creek along the Brooklyn border.

That mix shapes the plumbing work. Homeowners call about clogged house sewers, boilers and water heaters. Businesses need backflow prevention on their water services, floor drains that keep up with truck washing and loading docks, and gas piping for heaters and equipment. We cover both, with 24/7 dispatch, licensed plumbers and a written estimate before work starts, and we can schedule commercial work around shifts and deliveries.
Services we offer in Maspeth
- Commercial plumbing for warehouses, shops and offices
- Backflow preventer testing and installation for commercial water services
- Floor drain and trench drain clearing with hydro jetting
- Gas piping for unit heaters and commercial equipment
- House sewer clearing, camera inspection and replacement
- Boiler repair and replacement for two-family homes
- Water heater repair and replacement
- Water main repair for industrial and commercial lots
Common plumbing issues in Maspeth
Backflow devices on commercial services
Many industrial and commercial buildings in Maspeth are required to have a backflow preventer on their water service and to have it tested every year by a certified tester. Devices fail from age, debris or freezing in unheated spaces. We test, repair and replace backflow preventers and handle the paperwork for the annual test.
Floor drains in warehouses and shops
Loading docks, garage bays and shop floors send sand, oil and debris down floor drains, and the lines slowly fill until water ponds across the floor. Snaking punches a hole through, but hydro jetting clears the full pipe diameter. We camera the line afterward so you know whether there is a break or sag that keeps catching debris.
Shared driveway drains and house sewers
Many residential blocks have shared driveways with a drain at the bottom near the garages, tied into the house sewer. Leaves and silt clog it, and a heavy rain can then send water toward the basement. We clean these drains and the house trap, and check that the line to the street is in good shape.
Why Maspeth residents choose Nationwide Plumbers
- Licensed Master Plumber, License #2023, insured, with COIs for commercial landlords and tenants
- Our own van-mounted jetter for heavy commercial lines
- Commercial and residential work handled by the same licensed team
- Written estimates first and a 1-year labor warranty
Service area in and around Maspeth
We service all of Maspeth, Queens (ZIP 11378), for emergencies 24/7 and for scheduled work.
Nearby neighborhoods we also serve: Ridgewood, Middle Village, Elmhurst, Woodside and Greenpoint. For our full coverage, see our Queens service area page.
Plumbing in Maspeth: FAQ
How often does a backflow preventer need to be tested?
In NYC, a backflow preventer on a water service generally needs to be tested once a year by a certified tester, with the results filed. We do the annual test, make repairs if it fails and keep the process simple for business owners. See our backflow testing page.
Can you work around our business hours?
Yes. For warehouses and shops we can schedule work early, late or on weekends where it makes sense, and we dispatch 24/7 for emergencies like a broken water main or a flooded floor. Office hours are Monday to Saturday, 8am to 4pm.
Do you replace boilers in Maspeth two-family houses?
Yes. We replace steam and hot water boilers, size the new unit to the house and handle the gas and venting work. Replacement estimates are free. Learn more about boiler repair and replacement.

