5.0 Google Rating · 5.0 rating across our work

Recent work around Knoxville.

Real jobs from around our service area — what the homeowner was dealing with, what we actually did, and how it turned out. No before-and-after theatrics, just the work.

Every one of these was quoted upfront, performed by our own licensed technicians, and backed by our workmanship warranty.

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Project Log

Six jobs, described honestly.

If your situation looks like one of these, it probably has a similar answer. Call and describe it — we’ll tell you what we think before you book.

Farragut, TN Tankless Water Heaters

Tank to tankless conversion in a Campbell Station home

The problem. A family of five was running out of hot water by the third shower every morning, on a 50-gallon tank that was already eleven years old.

What we did. Assessed peak simultaneous demand, upsized the gas line, ran new venting, and installed a properly sized gas tankless unit in the garage — reclaiming the closet the old tank occupied.

The outcome. Endless hot water, a 20+ year unit, and a lower monthly gas bill. Completed in one day.

Drain Repair project in Maryville, TN
Maryville, TN Drain Repair

Recurring main line backup traced to root intrusion

The problem. The homeowner had paid three separate companies to snake the same line over two years. It backed up again every few months.

What we did. Cleared the line, then ran a camera and showed the homeowner live footage of roots entering through two failed joints in an original clay lateral. Hydro-jetted the line and replaced the failed section.

The outcome. No recurrence. The homeowner finally knew what was actually wrong — and had it fixed once instead of cleared four times.

Water Line Repairs project in Oak Ridge, TN
Oak Ridge, TN Water Line Repairs

Whole-home repipe in a 1940s original home

The problem. Low pressure at every fixture, rust-colored water on the first draw each morning, and a third pinhole leak in eighteen months.

What we did. Confirmed corroded galvanized supply throughout, then repiped the house in PEX zone by zone so the family kept running water during the work. New shutoff valves at every fixture.

The outcome. Full pressure restored, clear water, and no more leak-of-the-month. Permitted and inspected.

Knoxville, TN Water Filtration

Whole-home softener protecting a new tankless unit

The problem. A homeowner with a two-year-old tankless heater was already seeing efficiency loss and error codes from scale in the heat exchanger.

What we did. Tested the water, confirmed significant hardness, and installed a whole-home softener at the point of entry — then descaled the tankless unit and set it on an annual service schedule.

The outcome. Error codes gone, efficiency restored, manufacturer warranty protected, and no more film on the shower glass.

Lenoir City, TN Standard Water Heaters

Same-day replacement after a tank let go

The problem. A homeowner called at 7am with forty gallons of water across a finished basement floor and a tank leaking from the bottom seam.

What we did. Shut down and drained the failed unit, hauled it out, and installed a correctly sized replacement with a new expansion tank, drain pan, and code-compliant connections — all the same morning.

The outcome. Hot water back by early afternoon. Quoted upfront, financed into monthly payments at the homeowner’s request.

Hardin Valley, TN New Construction Plumbing

Full rough-in and trim-out on a custom build

The problem. A homeowner acting as their own general contractor needed plumbing coordinated around framing, HVAC, and a tight inspection window.

What we did. Reviewed the plans before slab, adjusted two fixture locations that would have caused venting problems, then handled underground, DWV, supply, and gas rough-in — followed by full fixture trim-out.

The outcome. Passed rough-in and final inspection first time, and never held up the trades behind us.

5.0 Google Reviews

What those homeowners said afterward.

“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.”
Verified customer review · Knoxville, TN
“As I expected, my call was answered by someone who actually knew what my problem was. Danny was able to work me in today.”
Verified customer review · Knoxville, TN
“It was an amazing service. They were on time, on budget and great to work with. Very knowledgeable, very friendly, and a reasonable price.”
Verified customer review · Knoxville, TN

Every Job, Same Standard

Quoted upfront, done by employees, warrantied.

Every project on this page was performed by Hard Knox Plumbing technicians out of 3414 Henson Rd C, Knoxville, TN 37921 — not subcontracted out. Locally owned by Danny Ferris and Jarrett Mohn, licensed and insured, serving everything within 25 miles.

Have a job that looks like one of these? Call 865.765.8946. A real person answers 24/7.

Licensed & Insured 5.0 Google Rating Warranty on All Work Locally Owned
A Hard Knox Plumbing service truck at the Knoxville, TN shop
Locally Owned

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