about sal manzo
Trusted Across Long Island for Real Work, Not Promises
Real guarantees, respectful technicians, and dependable plumbing, heating, drain, and water heater service across Nassau County and nearby Long Island communities.
bbb accredited a+
task 86/87 certified
serving long island since 1985
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Fast help for plumbing, heating, drains, and water heater issues.
about sal manzo
Trusted Across Long Island for Real Work, Not Promises
Real guarantees, respectful technicians, and dependable plumbing, heating, drain, and water heater service across Nassau County and nearby Long Island communities.
bbb accredited a+
task 86/87 certified
serving long island since 1985
request service
Fast help for plumbing, heating, drains, and water heater issues.
★★★★★ “Best plumber in Nassau County”
★★★★★ “Saved us during emergency”
★★★★★ “On time, clean work, fair price”
★★★★★ “Best plumber in Nassau County”
★★★★★ “Saved us during emergency”
why homeowners choose sal manzo
Real Guarantees, Respectful Service, and Long Island Experience That Still Matters
Sal Manzo Plumbing, Heating & Cooling has served Long Island since 1986 with plumbing, drain cleaning, water heater, boiler, heating, and cooling services backed by real workmanship standards and a strong respect for the customer’s home. We show up prepared, communicate clearly, protect your space, and stand behind the work.
Real guarantees
Standing behind every job we do, no excuses.
Clean work promise
We leave your space cleaner than we found it.
Respect for home
Treating your property with the utmost care.
No surprise pricing
The quote we give is the price you pay. Period.
what makes us different
Why Long Island Homeowners Feel Better Calling Us
People are not just hiring a plumber or HVAC company. They are letting someone into their home, trusting them around their family, and hoping the problem gets fixed without damage, confusion, or surprise charges. That trust has to be earned.
Sal Manzo Plumbing, Heating & Cooling was built around that reality. We focus on professionalism, clear communication, dependable workmanship, and the kind of home-respect standards that customers remember long after the repair is done.
core values
The Standards Behind the Service
Professionalism
Expertise
Attention to detail
Commitment to excellence
Superb client service
Whether the job is a plumbing repair, water heater replacement, drain issue, heating service, or a larger installation, the goal stays the same: do the work right, treat the customer fairly, and leave the home better than we found it.
Installation or Replacement
Central Air • Heat Pump • Boiler • Full Gas Conversion with Boiler Replacement
* Expires 12/31/26
Current Savings
Don’t Miss Out on These Savings
Planning a larger HVAC, boiler, or heating upgrade? This offer gives homeowners a clear reason to call now instead
of putting the job off another season.
red carpet treatment
We Respect Your Home from the Moment We Arrive

trusted technicians
Trained, Vetted, and Safer to Welcome Into Your Home
Our plumbers and technicians are held to a high standard. They receive ongoing training, are carefully selected to represent the company well, and are expected to treat every customer and every home with respect.
For added peace of mind, customers can be notified before arrival and know who is coming to the home. That may sound simple, but it matters. Reliability, safety, and professionalism are a huge part of why people choose one company over another.
The office team also plays a major role in the experience, helping with scheduling, replacement planning, permits, and communication so the process feels smoother from start to finish.
guarantees & peace of mind
Our Work Is Backed by Real Standards
what customers say
Proof That the Experience Matches the Promise
“The removal and installation of the water heater went smoothly. I’m very pleased with the work performed. I will most certainly use them in the future.”
– Manuel
“This plumbing company was recommended to me by a friend and is excellent. He is a very skilled person and worked very diligently to resolve the plumbing issue.”
– Patricia
“He fixed the issue at half the price the other company quoted us. They were clean, fast, efficient and honest. 100% recommend!”
– Dee
licensed & certified
Credentials That Support the Work

Master Plumber

Osha Certified

EPA Certified

Task 86/87 Certified
why choose us faq
Frequently Asked Questions
Why should I choose Sal Manzo over another plumbing company?
Homeowners usually care about three things: whether the company is trustworthy, whether the work will hold up, and whether their home will be treated with respect. Sal Manzo Plumbing, Heating & Cooling focuses on all three with stronger in-home standards, real guarantees, trained technicians, and long-term Long Island experience.
Do you guarantee your repairs and installations?
Yes. Repairs are backed by a one-year guarantee against defects, and equipment replacements or installations include a two-year workmanship guarantee. That gives customers more confidence that the job is not just being completed quickly, but being completed with accountability behind it.
How do you help protect my home during service?
We place a strong emphasis on home respect. That includes using floor protection, working carefully around finished surfaces, keeping work areas cleaner, and treating the home like it belongs to someone who deserves professionalism instead of a mess left behind.
Are your technicians trained and vetted?
Yes. Technicians are selected carefully, receive ongoing training, and are expected to represent the company professionally in the home. Customers may also receive advance communication about who is coming, which adds another layer of confidence and security to the service experience.
What kinds of work do you handle?
Sal Manzo handles a range of residential service needs including plumbing repairs, drain cleaning, water heaters, boiler-related service, heating work, and selected cooling needs. This page is focused less on the service list and more on why customers feel comfortable choosing the company in the first place.
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Need a Plumbing or Heating Company You Can Actually Feel Good Hiring?
Call Sal Manzo Plumbing, Heating & Cooling today for dependable service, stronger in-home standards, and real peace of mind from a Long Island team that has been doing this for decades.