Same-day visits on almost every call · Open 7am–7pm dailyLicensed · Insured · Bonded3211 Toscano Ct · Greenville, SC 29615
Technician levelling a wall-mounted tankless water heater during installation

Tankless installation · Upstate SC

Going tankless? Plan it right from the start.

Upgrading from a tank, renovating or building? Duckett plans and installs residential tankless water heaters around the home’s demand, utilities and venting.

Google reviews
292
4.3 ★ average
Same-day visits
Today
On almost every call
Years combined experience
10+
Residential & commercial
“…these guys got it done as promised!!”

What we plan for

A good installation starts before the unit arrives.

These are the questions that shape every tankless installation.

  • Household demand

    How much hot water you use at the same time.

  • Fuel or power

    Gas or electrical capacity for the new unit.

  • Venting

    A suitable path for venting and combustion air.

  • Placement

    A practical spot with room for future service.

Old heater failed already? Call now. We can almost always be there today.

(864) 209-9360

Why Duckett

Same day, almost every time. Priced before we start.

Two promises we keep, in our customers’ own words from Google.

Sometimes under 2 hours

Promise 1 · Same day

There today, almost every time.

Almost every visit happens the same day you call. Sometimes we’re at the door within two hours.

  • “From the time I called the office, a technician was at my house in 9 minutes.”
  • “Fast, friendly and efficient - went the extra mile to purchase needed garbage disposal and install same day.”

Then the work starts

Promise 2 · Written price

The price in writing, first.

The technician finds the cause and writes down the price before any work starts. You decide from there.

  • “…they came out. Diagnosed the problem. Got it fixed at an unbelievable fair rate…”
  • “…did the job in a timely manner, extremely fair priced, cleaned up the site…”

Google Verified business

Verified by Google. Before the first call.

Before a business can carry the Google Verified badge, Google checks its license, insurance and background. Duckett Plumbing passed every check.

Read our Google reviews

Google Verified · All checks complete

  • Plumbing licenseSC Mechanical Contractors License, Plumbing · #108305
  • InsuranceProof of valid insurance, checked by Google
  • Background checkGoogle’s standard checks and verification
  • Business licenseLicense acknowledged by Google

Google reviews

From homeowners across the Upstate.

4.3292 reviews Read them all
Google review · 3 months ago
“These guys are awesome. I called and they were on it the next day. We had a water line installed from home down to dock, had a sewer leak, a toilet running, a hot water heater installed and low water pressure. They repaired everything. All the employees were so kind and done more that what they were supposed to do. I highly recommend this company to do a great job.”
Vicki PittmanLocal Guide · 31 reviews
Cynthia profile photoCynthia 2 years ago on

Keowee key resident- I just had to write up a great review for the Duckett Plumbing business out of Anderson team ! these guys got it done as promised!! If your looking for a skilled , professional, reasonable plumber that really cares …

Lataviana Outing profile photoLataviana Outing 5 months ago on

Will and Nate was very amazing ! They did a great job I definitely recommend them. Very good people and did a very good job.

Jeremy Weaver 6 months ago on

Nate an Kevin came out last month and did an amazing job replacing my well setup. They was here fairly quick and got the job done same day. Definitely recommend them for any an all plumbing aspects.

Daen Campbell profile photoDaen Campbell 2 years ago on

My son recently inherited a 1945 mill home from his grandparents. The home needs a complete rehab, but we were looking to make it livable until the spring. It’s in a very small town and plumbers willing to take the job are limited. From the very first phone call late on a Friday afternoon about a big water leak, to the completion of the job, Duckett Plumbing exceeded my expectations. These guys are so knowledgeable. They provided me with solid options based on our needs and budget. Wayne was the best! He completed all the work on our very necessary bathroom fixes. New toilet, new shower fixtures and new shower surround. He’s thoughtful of his work and provided the best customer experience. He went so far above and beyond what was requested.

Austin Gray 6 months ago on

Great work! 10/10 recommended. They came in, respectful, did the job in a timely manner, extremely fair priced, cleaned up the site and was out of our hair in great time. Thankful for my new well setup!

Michelle Reece profile photoMichelle Reece a year ago on

We needed plumbing work done soon and they were able to come to the house the same day and completely finish the work that needed to be done. They came after 6:00 pm pumped the septic tank and made a baffle and was done properly around 8:30 pm. We are very pleased with them!!!!

Deanne Meyer 5 months ago on

Will and Nate were.so knowledgeable and quickly assessed and diagnosed our issue with our water pressure. In addition, they provided helpful advice for troubleshooting should future issues surface. They were timely and professional and the prices were reasonable. We will call on them for future services.

Kitty Lewis 2 years ago on

I had a leak in my kitchen free standing ice maker, of course, on a Sunday night at 7:30pm. The leak was substantial and I was in a panic! I called Duckett Plumbing because their website said that they would respond to urgent situations. I …

Karla Kidd profile photoKarla Kidd 5 months ago on

Nate was super respectful and helpful on fixing our pressure reducing valve. Would recommend him to do future jobs.

All reviews are fetched from Google and shown as written on Duckett Plumbing’s Google Business Profile.

And three things customers keep mentioning.

  • Every call answered

    Day or night, 7 days a week.

    Phones
    Answered 24/7
    On site
    7am–7pm daily
    “They came after 6:00 pm pumped the septic tank and made a baffle and was done properly around 8:30 pm.”
  • Remembered by name

    On time, clear about the work, respectful of the home. Customers notice, and name the technician.

    Technicians named in reviews

    David

    “…David the technician called notifying me he was on his way and arrived on time…”
  • Source to faucet

    Water lines, water heaters and wells, and the plumbing they feed, from one crew.

    “…had a sewer leak, a toilet running, a hot water heater installed and low water pressure. They repaired everything.”

What to expect

Plan first. Install to the home.

  1. Tell us about the project

    A replacement, an upgrade, a renovation or new construction, and the heater you have now.

  2. Review the site

    A technician looks at demand, utilities, venting, drainage and the proposed location.

  3. Install and connect

    Agree on the scope and pricing, then the unit is installed and connected.

Technician levelling a tankless water heater with its water and gas connections belowBuilt to stay serviceable

Installation is a system

Every connection is planned.

Water, gas or power, venting and condensate all have to work together, and the unit needs to stay easy to service after installation day.

  • SizingMatched to simultaneous use and incoming water conditions.
  • UtilitiesGas piping or electrical capacity for the equipment.
  • Venting and condensateVenting, combustion air and drainage where required.
  • Service accessValves and placement that make future maintenance practical.

No hot water today?

We can almost always be there today.

Almost every visit happens the same day you call. You’ll get a written price before any work starts.

Tankless installation

Tell us about your tankless project.

Share whether it’s a replacement, upgrade, renovation or new build, and the heater you have now. The team will follow up to plan the next step.

Want someone out today? Calling is the quickest way.(864) 209-9360

For immediate help, call (864) 209-9360.

Areas we cover

Local offices. Working across the Upstate.

Duckett serves homeowners throughout Greenville County, from Travelers Rest down to Fountain Inn.

Anderson is the county seat of Anderson County. Duckett serves homeowners throughout the county, from Powdersville and Williamston to Belton, Honea Path and Iva.

Easley is in Pickens County, with part of the city reaching into Anderson County. Duckett serves Easley homeowners on both sides of the county line, and across Pickens County.

Greer sits on the line between Greenville and Spartanburg counties. Duckett serves Greer homeowners on both sides of the county line.

Mauldin is in Greenville County, between Greenville and Simpsonville. Duckett serves Mauldin homeowners as part of its Greenville County coverage.

Seneca is in Oconee County. Duckett serves Seneca homeowners, and nearby Walhalla, Westminster and Salem.

Taylors is a community in Greenville County, between Greenville and Greer. Duckett serves Taylors homeowners as part of its Greenville County coverage.

Simpsonville is in Greenville County, just southeast of Mauldin. Duckett serves Simpsonville homeowners as part of its Greenville County coverage.

Spartanburg is the county seat of Spartanburg County. Duckett serves Spartanburg homeowners, and nearby Boiling Springs, Inman, Lyman, Duncan and Woodruff.

Laurens is in Laurens County, along with Clinton and Gray Court. Duckett serves homeowners in all three, and in Fountain Inn and Ware Shoals.

Greenwood is the county seat of Greenwood County. Duckett serves Greenwood homeowners, and nearby Ninety Six, Hodges and Ware Shoals.

Clemson is in Pickens County, with part of the city in Anderson County. Duckett serves Clemson homeowners on both sides of the county line, along with Central, Liberty, Pickens and Easley.

Check availability by phone
Map of Greenville County, with Greenville and the nearby towns Duckett serves, and range rings in miles from GreenvilleGreenvilleGREERMAULDINSIMPSONVILLETAYLORSWADE HAMPTONTRAVELERS RESTFOUNTAIN INN
© OpenStreetMap contributors

Installation questions

Common questions about tankless installation.

The answers depend on the home, its utilities and the proposed location.

How is a tankless unit sized?

Sizing considers how many fixtures run at once and how much the unit has to heat the incoming water.

Is my gas supply big enough?

Gas-fired units can need more capacity than a tank heater. The supply and piping are reviewed during planning.

Where will it vent?

Venting has to suit the equipment and the site. It’s planned as part of the installation.

Can it replace my tank heater?

Often it can, but the home’s utilities, demand and space decide whether it’s a good fit. You’ll hear the scope first.

Will I know the price first?

Yes. You’ll agree on the scope and pricing before the installation begins.

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