Have questions about your home’s plumbing? Here are answers to the 20 most common plumbing questions asked by New York City homeowners — from leaks and low water pressure to backflow testing and energy-efficient upgrades.
1. Why is my water pressure low in my NYC home?
Low water pressure often results from clogged aerators, corroded pipes, or main line issues. Our licensed Brooklyn plumbers can diagnose and restore proper flow quickly.
2. Is brown or discolored tap water safe to drink?
Brown or yellow water usually indicates rust or sediment in aging NYC pipes. Let water run until clear or call us for inspection if it persists.
3. What should I do if I have a leaking pipe?
Shut off your main water supply immediately and call Stanley Lewis Plumbing & Heating. We’ll repair leaks and inspect for hidden issues.
4. Why does my toilet keep running?
A worn flapper or fill valve is usually the cause. Replacing these parts prevents water waste and high bills.
5. How can I prevent frozen pipes in NYC winters?
Insulate exposed pipes, maintain indoor temperatures above 55°F, and allow faucets to drip during extreme cold to avoid bursts.
6. Are backflow preventers required in New York City?
Yes. Properties with boilers, sprinklers, or irrigation systems must install and annually test backflow devices per NYC DEP regulations.
7. What is a backflow test and why is it important?
Backflow testing ensures contaminated water can’t flow back into the public supply. We provide NYC DEP-approved testing and repairs.
8. Why is my water bill unusually high?
Hidden leaks, running toilets, or dripping faucets are common causes. Our leak detection services can find and repair the source quickly.
9. Do I need a permit to replace plumbing fixtures in NYC?
Minor fixture replacements don’t need permits. Moving plumbing lines or installing gas appliances requires a DOB permit handled by a licensed plumber.
10. Can I use chemical drain cleaners in NYC plumbing systems?
Avoid harsh chemicals—they can damage old pipes and harm the environment. Use mechanical cleaning or professional services instead.
11. Why does my drain smell like sewage?
A dry P-trap or venting problem is usually the cause. Run water into unused drains or schedule a professional inspection if the smell persists.
12. What should I do during a main sewer line backup?
Stop using all water fixtures and call an emergency plumber. We use camera inspections and hydro jetting to clear blockages safely.
13. Are tankless water heaters allowed in NYC homes?
Yes, they are energy-efficient and space-saving. Must be installed and vented properly with permits.
14. How long do water heaters last?
Tank models last 8–12 years, tankless units 20+ years. Regular maintenance extends lifespan.
15. When should I replace old plumbing?
Frequent leaks, rusty water, or low pressure suggest replacement. Upgrading to copper or PEX improves safety and performance.
16. What regular plumbing maintenance should I do?
Inspect for leaks, flush water heaters annually, and clean faucet aerators to prevent emergency repairs.
17. What causes banging noises in my pipes?
Water hammer occurs when valves close suddenly. Installing arrestors or securing pipes fixes the issue.
18. Who is responsible for a sewer line blockage in NYC?
Homeowners handle blockages within property lines; NYC DEP is responsible for city mains. Camera inspection confirms responsibility.
19. How can I make my plumbing more energy-efficient?
Install low-flow fixtures, insulate hot water lines, and upgrade to tankless water heaters to save energy.
20. How can I find a licensed plumber in NYC?
Verify licenses on the NYC Department of Buildings website. Stanley Lewis Plumbing & Heating is fully licensed and insured.
21. What is the difference between a "toilet" and a "water closet" in NYC code?
In NYC plumbing language, the "toilet" fixture is generally referred to as the water closet (WC). The term "water closet" is normally used on blueprints and mechanical drawings.
22. Does the NYC plumbing code classify "smart toilets" as a separate type of fixture?
NYC does not typically treat "smart toilets" as a separate fixture class in the plumbing code. In practice, a smart toilet is considered a water closet with integrated electronics or a bidet washlet seat.
23. What are the limitations of a standard gravity tank toilet?
They have limited flushing energy and carry a higher risk of double-flushing or clogging compared to pressure-assisted or flush-valve systems.
24. Do I need a DOB permit to install a chimney rain cap?
No permit is required if it is a simple replacement or installation of a cap/crown on a masonry chimney that does not alter the structure.
25. Can a plumber perform minor chimney leak repairs, like replacing flashing?
Minor repairs—such as repointing, sealing, replacing flashing, or crown patching—do not require a permit and can be performed by a general contractor or mason.
26. When is an architect or engineer required for chimney work?
For structural chimney rebuilding, a Registered Design Professional (RDP) must file the plans.
27. Does replacing a residential water heater require a permit?
Yes, a typical like-for-like residential water heater replacement requires a Limited Alteration Application (LAA) for plumbing or in special instances an Ordinary Plumbing Work Report (OP-128) may be used.
28. Are there special DEP requirements for large commercial water heaters?
Yes, the NYC Fuel Gas Code requires DEP approval for large gas or fossil-fuel water heaters/boilers when the input is 350,000 BTU/hr or more.
29. Who can legally perform electrical wiring changes for a new water heater?
A Licensed Electrician must pull an Electrical Work Permit when installing a heater that requires new circuits, breakers, or substantial wiring changes
