Plumbing services in Knoxville, TN.
Water heaters, drains, water lines, fixtures, filtration, and new construction — Hard Knox Plumbing handles the whole residential plumbing system for homes across Knoxville and everywhere within 25 miles.
Licensed and insured technicians. Flat-rate pricing quoted before work begins. A warranty on every job. And a real person on the phone 24 hours a day.
Core Services
Seven things we do, and do properly.
Every one of these is performed by our own licensed technicians — not subcontracted out — with the price quoted before the work starts.
Tankless Water Heaters
Endless hot water, lower energy bills, and a 20+ year lifespan.
Learn more →Standard Water Heaters
Repair or same-day replacement of traditional tank heaters, sized right.
Learn more →Drain Repair & Clearing
Slow or clogged drains cleared fast — and fixed so they stay clear.
Learn more →Water Line Repairs
Wet spots in the yard or a jumping water bill? We locate and fix the line.
Learn more →Fixture Repair & Replacement
Faucets, toilets, sinks, and disposals repaired or upgraded cleanly.
Learn more →Water Filtration Systems
Softer, cleaner water at every tap — and less scale in your pipes.
Learn more →New Construction Plumbing
Full rough-in and trim-out for custom homes, additions, and remodels.
Learn more →Emergency Plumbing
Burst pipes, no water, sewage backups — a real person answers 24/7.
Call 865.765.8946 →24/7
Emergency availability
25 mi
Service radius from Knoxville
5.0
Google rating
100%
Licensed & insured work
Why Homeowners Call Us Back
The part most plumbing companies get wrong.
The price is the price
You approve a flat rate before we start. No hourly meter, no adjustment at the end, no surprise line items on the invoice.
A person answers
Call at 2pm or 2am and you get a Hard Knox plumber, not an offshore call center reading from a script.
Warranty on all work
Manufacturer warranty on equipment plus our own workmanship warranty. You shouldn’t call twice for the same issue.
We respect the house
Drop cloths, shoe covers, old equipment hauled away, and the work area left cleaner than we found it.
Also In Our Wheelhouse
The rest of what we get called for.
If your problem involves water, drains, or gas inside a house, it’s probably on this list. If it isn’t, call anyway — we’ll tell you honestly whether it’s ours.
Big repair? Spread it out.
Water heaters, sewer lines, repipes, and filtration systems can all be financed into predictable monthly payments — same upfront price, same warranty, less strain on the month it happens.
Book Now
Tell us what’s going on. We’ll take it from there.
Fill out the form and we’ll get back to you to confirm a time. If it’s urgent — water on the floor, no water at all, sewage backing up — skip the form and call 865.765.8946. Someone answers, any hour.
- Flat-rate price quoted before any work begins
- Licensed, insured, background-checked technicians
- Warranty on parts and workmanship
- Financing available on larger jobs
Common Questions
Questions about working with us.
What areas does Hard Knox Plumbing serve?
We serve homes within a 25-mile radius of our Knoxville shop at 3414 Henson Rd C — including Knoxville, Farragut, Hardin Valley, Lenoir City, Oak Ridge, Loudon, Alcoa, Maryville, Powell, Halls, and Karns. If you’re not sure whether you’re inside the radius, call 865.765.8946 and we’ll tell you in one sentence.
Are you available for after-hours emergencies?
Yes — 24 hours a day, seven days a week, including holidays. A real person answers the phone, not an answering service reading a script. Burst pipes, sewage backups, no water, and total hot water loss all qualify as emergencies in our book.
Do you charge for estimates?
Replacement and installation estimates — water heaters, filtration systems, line replacements, new construction — are free. For diagnostic service calls we quote a flat rate before we begin any work, so you always know the number before you commit.
Are you licensed and insured?
Yes. Hard Knox Plumbing is a licensed and insured Tennessee plumbing contractor, and every job is performed by our own trained technicians — we don’t subcontract residential service work out to strangers.
Do you offer financing?
We do. Larger jobs like water heater replacement, sewer or water line replacement, and whole-home filtration can be financed into predictable monthly payments. The pricing and warranty are identical whether you finance or pay upfront.
Do you work on commercial properties?
Our focus is residential — houses, additions, and remodels — which is where we do our best work. For small commercial properties, call and describe the job; we’ll tell you honestly whether we’re the right fit or point you toward someone who is.
What’s your warranty?
Every job carries Hard Knox Plumbing’s workmanship warranty in addition to any manufacturer warranty on installed equipment. Our promise is simple: you shouldn’t have to call us twice for the same problem.
Recommended by your neighbors.
“My cost was exactly what he told me over the phone. He was on time, cleaned up after the repair and was very courteous. Hard Knox Plumbing will always be my first call.”
“As I expected, my call was answered by someone who actually knew what my problem was. Danny was able to work me in today.”
“It was an amazing service. They were on time, on budget and great to work with. Very knowledgeable, very friendly, and a reasonable price.”
Service Area
Knoxville, and 25 miles in every direction.
Hard Knox Plumbing operates from 3414 Henson Rd C, Knoxville, TN 37921. We serve Farragut, Hardin Valley, Lenoir City, Oak Ridge, Loudon, Alcoa, and Maryville, plus Powell, Halls, Karns, Corryton, and everything in between.
Not sure if you’re in range? Call 865.765.8946 and ask — we answer 24/7.
Plumbing emergency?
We're open 24/7. Call us right now.
Water damage gets worse by the minute. A Hard Knox plumber answers around the clock — nights, weekends, and holidays.