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Licensed plumber correcting improper drain and vent work in a Lake in the Hills basement

Artisan Water Group

Plumbing Code Violation Corrections in Lake in the Hills, IL

This is the service nobody plans for. A house sale is under contract and the inspection turned up work that was never permitted. A remodel failed its rough inspection. The Village sent a notice. A previous owner's basement bathroom turns out to have been plumbed by someone who was confident rather than qualified.

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  • Locally owned

Need this handled today? Call and a real person answers — nights, weekends and holidays included. You get the price before we start.

The good news is that most of what we find is correctable, and it is usually less dramatic than the notice makes it sound. Improper venting, a missing air gap, a trap arm run too long, S-traps instead of P-traps, flexible connectors used as distribution piping, an unvented island sink, a water heater without an expansion tank.

What these all have in common is that a licensed plumber can correct them, pull the permit, and get them signed off — turning an open item into a closed one with paperwork behind it.

What brings people to this page

Usually a deadline is attached, so we treat these with appropriate urgency.

  • A failed inspection during a remodel

    Rough inspection did not pass and the drywall crew is waiting. We read the correction notice, fix exactly what is cited, and get the re-inspection scheduled.

  • Unpermitted work found during a home sale

    The buyer's inspector or the attorney flagged it. Retroactive permitting plus correction is usually possible and it is what unblocks the closing.

  • A Village violation notice

    Something was reported or observed. There is normally a compliance window, and meeting it with documented, permitted work closes it out.

  • Previous-owner DIY you have inherited

    A basement bathroom, a wet bar, a laundry moved to a new spot. Often functional-looking and often not vented, sloped or connected correctly.

  • An insurance inspection finding

    Insurers sometimes flag plumbing conditions. Correcting them properly and documenting it is what satisfies the carrier.

  • You suspect something is not right

    You do not need a notice to ask. If a previous owner's work makes you uneasy, an inspection now is cheaper than discovering it during a sale.

How we handle a correction

Read the notice, fix exactly what is cited, document everything.

  1. 1. Read the actual notice

    Not a summary of it. Correction notices cite specific code sections, and fixing the wrong thing means a second failed re-inspection. Send us the document.

  2. 2. Inspect the whole related system

    Where one violation exists, related ones frequently do too. We would rather find them now than have the re-inspection turn up something new.

  3. 3. Scope and quote in writing

    Exactly what will be corrected, what it costs, and what the timeline looks like against your deadline. If there is a faster partial path to closing, we will say so.

  4. 4. Permit — including retroactively

    Correcting unpermitted work generally means permitting it now. That is normal, the Village handles it routinely, and it is what turns the work into a documented record.

  5. 5. Correct to current code

    Proper venting, correct slope, right materials, accessible cleanouts and shutoffs. Done so it passes rather than done so it might.

  6. 6. Re-inspection and documentation

    We schedule the re-inspection and meet the inspector. Then you get the permit records, the inspection sign-off and photographs — the package an attorney or a buyer's agent actually wants.

Plumber correcting an improper trap and vent in a Lake in the Hills basement
Plumber correcting an improper trap and vent in a Lake in the Hills basement.

The violations we find most often

Almost all of these come from work done without a permit by someone who had good intentions and no training.

  • S-traps instead of P-traps. An S-trap siphons itself dry as water drains, leaving an open path for sewer gas. Extremely common under owner-installed sinks.
  • Missing or improper venting, especially on basement bathrooms and island sinks added after the house was built.
  • Flexible connectors used as distribution piping rather than as the short final connection at an appliance. Very common on gas, and it fails inspection every time.
  • No expansion tank on a closed system with a water heater, which is why the relief valve weeps.
  • Trap arms run too long or with the wrong slope, so fixtures drain slowly and traps siphon.
  • Improper materials joined without correct transition fittings, particularly where someone joined dissimilar metals directly.
  • Missing cleanouts, or cleanouts buried behind finished walls where nobody can reach them.
  • Unpermitted gas piping. This is the one we treat most seriously — see [gas line installation and repair](/services/gas-line-installation-repair-lake-in-the-hills).

Why unpermitted work matters even when it works

A common and understandable reaction is that the plumbing has functioned fine for eight years, so what is the problem. Three answers.

Insurance. If an unpermitted installation causes water damage, an adjuster investigating the claim may look at whether the work was permitted and performed by a licensed contractor. Unpermitted work gives a carrier grounds to reduce or deny, and that is a conversation nobody wants while their basement is being dried out.

Resale. It surfaces. Buyers' attorneys ask, inspectors flag it, and at best it delays a closing while it is retroactively permitted. At worst you are opening walls under time pressure to prove work from years ago meets code.

And safety, which is the reason the code exists. An S-trap that siphons dry is an open sewer gas path into a living space. An unvented island sink is the same. Unpermitted gas work has consequences that are not measured in dollars. Most of these things work right up until the moment they matter. Our guide to plumbing permits in McHenry County covers what requires one and why.

What corrections cost depend on

Impossible to quote from a phone description alone — the notice and a look at the work determine it.

How many items are cited
A single missing air gap is a small job. A basement bathroom that needs venting, trap and slope corrections is a significant one.
Whether it is accessible
Unpermitted work behind finished drywall costs more to correct because it has to be opened. This is the single biggest variable.
Materials involved
Flexible connectors used as distribution piping, improper materials on gas or drain, or unapproved fittings all get replaced rather than adapted.
Retroactive permitting
Permit fees for work being brought into compliance, itemized separately as always.
Deadline pressure
A closing date next week may mean rescheduling other work. We will tell you honestly whether we can hit your date before you rely on us for it.
What we find once it is open
Unpermitted work is unpermitted because nobody inspected it. Sometimes there is more behind it, and we will tell you before proceeding.

Send us a photo of the correction notice before we come out. It frequently lets us tell you the likely scope and cost before anyone is standing in your basement.

Code Violation Corrections FAQs

Can unpermitted plumbing work be permitted after the fact?

Usually, yes. Retroactive permitting is a routine process — the work is brought up to current code, permitted, and inspected. It is the standard path for clearing an item flagged during a home sale.

My remodel failed its plumbing inspection. What now?

Send us the correction notice. It cites specific code sections, and correcting exactly what is cited is what gets the re-inspection passed. We schedule the re-inspection and meet the inspector ourselves.

What is an S-trap and why is it a violation?

An S-trap is shaped so that draining water siphons the trap dry, removing the water seal that keeps sewer gas out of the room. It is one of the most common findings under owner-installed sinks, and correcting it means re-plumbing the trap arm and vent properly.

Will correcting violations delay my home sale?

Handled promptly, usually not by much. Most corrections are a visit or two plus a re-inspection. Send us the inspection report as early as you can — the timeline is the thing worth protecting.

Do you provide documentation afterward?

Yes — permit records, inspection sign-off and photographs. That package is what an attorney, a buyer's agent or an insurer actually wants, and handing you a fixed pipe without it only solves half the problem.

Often needed together

Related plumbing services

These come up on the same houses more often than not.

  • Gas Line Installation & Repair

    Permitted, pressure-tested gas line work for ranges, dryers, grills, fire pits and generators — plus leak diagnosis.

    Learn more
  • Bathroom Remodel Plumbing

    Rough-in, drain relocation, venting and finish plumbing — sequenced with your tile and cabinet trades, permitted and inspected.

    Learn more
  • Commercial Plumbing Services

    Small commercial and light industrial work — repairs, fixtures, grease lines and backflow compliance, scheduled around your hours.

    Learn more

Worth reading first

More on this from our blog

Code Violation Corrections

Ready to get your code violation corrections handled?

Call and talk to the person who will do the work. Free written estimates on non-emergency code violation corrections, and a price before we start on anything urgent.

  • 5.0 from 11 Google reviews
  • Licensed & insured
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Why homeowners choose us for this

We are a licensed, insured, owner-operated shop based on Pine Street in Lake in the Hills. That means the person quoting the job is the person doing it, and nobody here is measured on how much they sold you.

Every recommendation starts with the water. At 26–28 grains per gallon, our supply is roughly six times harder than the national average, and it is the single biggest factor in how long anything in your plumbing lasts. Fixing the symptom without addressing that is how you end up calling someone again in two years.

And when a permit is required — water heaters, sewer work, gas piping — we pull it and show the fee on its own line. Ask every plumber you talk to for the same. Read more in our guide to plumbing permits in McHenry County.

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