When something goes wrong with your plumbing, the first thing you want is a straight answer about what it probably is and what it will take to fix it. Call us and that is what you get. We ask a few questions, tell you what the situation sounds like, and get a licensed plumber scheduled. Cox Plumbing handles the full range of residential and commercial plumbing work in Jefferson and the surrounding area, from a dripping faucet to a full repipe, from a sewer backup to a water heater that stopped working overnight.
Jefferson is a town where most of the housing stock has a basement, a furnace room, and a water heater that has been running quietly for years. Older homes on original pipework, additions built without drawings, and outbuildings with their own supply lines are all common here. Whether you are a homeowner dealing with a slow drain or a property manager coordinating repairs across several units, we scope the job, give you a price, and send someone out to handle it.
Not every plumbing call looks the same, and the kind of housing and premises found in a town like Jefferson means the work varies more than people expect. A call from a home built decades ago is a different job than a call from a newer commercial space, and both are different from a call about a planned installation. Here is how the work tends to break down.
Some calls start with a symptom and no obvious cause. Water pressure that dropped overnight. A drain that backs up only when two fixtures run at once. A water heater that runs out of hot water faster than it used to. These jobs start with finding the source before anything is fixed. Work performed by licensed plumbers means the diagnosis is as careful as the repair, and we tell you what we found before a wrench comes out. The job is scoped and priced before we start.
Older homes in this part of Wisconsin often reach a point where a spot repair stops making sense. Galvanized pipe that has scaled internally, a water heater that is past its useful life, a shutoff valve that has seized and will not close. When the same line keeps failing or the water quality has dropped noticeably, a replacement is the cleaner answer. We walk through what the work involves and what it costs before anything is scheduled.
Not every call is an emergency. Appliance hookups, fixture upgrades, water filtration and softener installation, garbage disposal installation, and backflow prevention are all jobs that get planned in advance. These are easier to schedule, easier to quote, and easier to complete when the work is not happening under pressure. The full breakdown of what we handle is on the service page.
The price depends on what the fault turns out to be and what has to come apart to reach it. A drain cleaning is a straightforward job with a predictable scope. A leak inside a wall is not, because the pipe condition and the access point are unknown until the plumber is on site. We give you a quote before anything is scheduled, and if the work turns out to be more involved than the initial description suggested, we explain what we found and confirm the revised price before continuing.
What moves a quote is the nature of the fault, the age and condition of the surrounding pipe, and whether the repair involves a single fitting or a longer section of line. We do not offer a free estimate, but when you call, we talk through what you are describing and give you a realistic sense of the scope. You know what you are getting into before anyone shows up. Call and we'll get the water running right.
No hot water is one of the most disruptive plumbing problems a household faces, especially through a Wisconsin winter. We repair tank and tankless units, covering thermostat and element failures on traditional tanks and flow sensor and venting issues on tankless systems. When a unit is at the end of its life, we go over replacement options that fit the space and the demand before anything is ordered. Tankless installation is available for homeowners looking to upgrade.
A standard snake clears a blockage but does not clean the pipe wall. On a drain line that has years of grease, mineral scale, or root intrusion built up along the interior, hydro jetting sends a high-pressure water stream through the line and cuts through what a snake leaves behind. It is the right call when a clog keeps coming back or when a camera inspection shows significant buildup along a longer run.
Pressure problems show up at a single fixture or across the whole property, and the cause is different in each case. A failing pressure regulator affects everything at once. Mineral buildup inside a galvanized line narrows the flow gradually over time. A partially closed shutoff valve causes a drop that looks like a bigger problem than it is. We find the source and fix it there rather than working around it.
A new appliance that is not properly connected to the supply and drain is a leak waiting to happen. We handle the supply line connections, the drain hookups, and the shutoff valves for washing machines and dishwashers, and we check for backflow prevention where the configuration requires it. It is a short job when it goes smoothly, and a much longer one when an improperly installed connection fails inside a wall.
A dripping faucet wastes more water than most people expect over a month. A seized tap that will not close fully is a different problem, often caused by a corroded valve seat or a cartridge that has worn out. Faucet and sink repair covers both, and in cases where the fixture is too far gone to repair cleanly, we replace it. Outdoor faucets and hose bibs are part of the same work, including frost-free installations for lines that are exposed to freezing temperatures.
Whether it is a straightforward fixture swap or a full shower installation as part of a bathroom renovation, the plumbing side of the job involves supply connections, drain rough-in, and making sure the valve and trim are set correctly before the wall goes back together. We handle the plumbing portion and coordinate around whatever else is happening in the space.
Low pressure and uneven pressure are two different complaints, and they point in different directions. Low pressure across the whole property often traces back to the pressure regulator, a supply line restriction, or a shutoff valve that is not fully open. Uneven pressure, where one fixture runs fine while another barely trickles, is more often a fixture-level problem: a clogged aerator, a worn cartridge, or a valve that has partially closed.
In older homes with galvanized supply lines, the pipe itself is the restriction. Scale builds up on the interior wall over years, and the effective diameter of the pipe shrinks until the pressure drop becomes noticeable. When that is the diagnosis, a section replacement or a full repipe is the fix, not a regulator adjustment. We find where the restriction is and tell you what the options are. Pick up the phone and we'll handle the pipes.
Some plumbing work requires a permit and a follow-up inspection before the job is considered complete. What triggers that requirement varies by municipality, and what applies in Jefferson may differ from what applies in the county around it. Generally speaking, work that involves new pipe runs, water heater replacements, or changes to the drain and vent system is more likely to need one than a straightforward fixture repair.
When a permit is required, it adds a step to the timeline. We factor that in when we schedule the work and let you know what to expect. We do not guess at local requirements and then present the guess as fact. If there is a question about whether a permit applies to your job, we talk it through when you call.
We are available every day from 6:00 AM to 8:30 PM, and same-day appointments are often available for urgent situations. When you call, you reach someone who can take the details of the job, give you a quote, and get a plumber scheduled. For a problem that will not keep, we treat it as the priority it is. For planned work, we schedule around what works for the property.
For properties with tenants or businesses that need to stay open, we work around the constraints. That might mean scheduling at the start of the day before a business opens, or coordinating access with a tenant who cannot be home mid-afternoon. We confirm the appointment window when you book and let you know who is coming. Working here keeps us accountable to the neighbors we serve, and that shows up in how we handle the scheduling as much as the repair itself.
Simple scheduling. Competitive rates. Water back fast.
We serve Jefferson and the communities around it throughout Jefferson County. That includes Johnson Creek, Helenville, Fort Atkinson, Lake Mills, and Rome, along with rural properties and smaller addresses in between. Whether the job is in town or further out in the county, we handle residential and commercial plumbing work across the area. If you are not sure whether we cover your address, call and we will confirm right away.
Before booking anything, our plumbing work page is worth a read.
In most cases, yes. Supply lines to individual fixtures typically have their own shutoff valves directly under the sink or behind the toilet. If those valves are seized or missing, we can isolate the line at a branch shutoff or at the main. Part of what we check during any fixture repair is that the isolation valves serving it are functional.
Yes. Properties with outbuildings, garages, or accessory structures connected to the same supply or drain system are common in Jefferson County. We assess the full scope of the job on the call, and if both structures need attention we schedule the work to cover both in the same visit where that is practical.
Yes. We serve Jefferson and the surrounding areas throughout Jefferson County, including rural addresses and properties between the named towns. If you are not sure whether your address is in our coverage area, call and we will confirm before you go any further.
Yes. We work with managing agents and property managers across the area we cover. Whoever calls is the contact for the job, and we will coordinate with that person on scheduling, access, and pricing. If the owner needs to be kept informed separately, let us know how communication should be handled and we will work within that arrangement.
The plumbing inside the house is handled the same way regardless of the water source. We work on supply lines, fixtures, water heaters, drain lines, and sewer connections on properties served by a private well the same as on any other property. Well pump and pressure tank service is a separate specialty and not something we cover, but everything downstream of the pressure tank is standard plumbing work.
If nobody is available to provide access, we will make contact by phone to work out next steps. Access to the affected area is required to do the work, so if the property is unoccupied we will coordinate with whoever can let the plumber in. When you book, let us know if access arrangements are anything other than straightforward so we can plan accordingly.
A quote can change if the plumber finds a related problem that was not visible or describable before the work began, such as corroded pipe behind a wall or a fitting that has to be replaced before the repair will hold. We explain what we found and confirm a revised price before continuing. The original quote covers what was described and agreed to at the start.
Same-day service is available throughout the area we cover, including smaller communities. If you are not sure whether your address falls within our service area, call (262) 955-2935 and we will confirm right away. Urgent calls are handled the same way regardless of where in the service area the property is located.
Homes with original galvanized supply lines often develop low water pressure as scale builds up inside the pipe over time. Shutoff valves that have not been operated in years can seize, and water heaters in older homes are frequently undersized or past their useful life. These are the jobs we see most often in a town like Jefferson, and they are all work we handle regularly.
We replace it with current approved materials and make the transition at the appropriate connection points. Galvanized steel, polybutylene, and other outdated pipe types are replaced regularly in older homes, and the repair or repipe is done to current code using materials that are compatible with the rest of the system. We explain the plan before any work starts.
Yes. If you manage multiple properties and have repairs needed at more than one location, call and walk us through the full list. We can often schedule across multiple addresses in a coordinated way. Property managers with ongoing repair needs across a portfolio should call and explain the scope so we can work out the best way to handle it.
Whatever the job is, whether it is a burst pipe on a January night, a water heater that stopped producing, or a drain that has been slow for longer than it should have been, we will come out and deal with it. We are available every day from 6:00 AM to 8:30 PM, and same-day service is often available for situations that cannot wait.
Call (262) 955-2935 for a quote. One call. One plumber. One fair price.
Also serving: Fort Atkinson, Whitewater, Watertown.
You can browse our full area list.
We handle the full range of residential and commercial plumbing work across Jefferson and the surrounding county, from a single clogged drain to a whole-house repipe. Every job is handled by licensed plumbers who scope and price the work before anything gets started. The table below covers what each service includes, who it fits, and what is useful to know before you call.
| Plumbing Service | Scope of Work | Best For | Helpful to Know |
|---|---|---|---|
| Leak Detection & Repair | supply line and wall pipe leaks, under-sink and connection repairs, outdoor water line repair | Anyone noticing water damage, high bills, or a dripping sound with no visible source | Finding a hidden leak early almost always costs less than repairing the water damage it causes if left alone. |
| Pipe Insulation & Winterization | exposed pipe insulation in unheated spaces, outdoor faucet winterization, full property drain-down for seasonal buildings | Homeowners preparing for a Wisconsin winter, especially those with seasonal or unoccupied properties | Scheduling winterization before the first hard freeze costs far less than repairing pipes that split during an overnight temperature drop. |
| Garbage Disposal Service | jam clearing and reset, leak repair at the sink flange, full disposal replacement | Kitchens where the disposal hums, leaks, or has stopped working | Most disposal repairs are quick. When replacement makes more sense, we confirm the new unit fits the drain connection before we leave. |
| Frozen & Burst Pipe Repair | frozen pipe thawing, burst pipe isolation and replacement, emergency response for active water loss | Jefferson homeowners dealing with a freeze in exterior walls, crawl spaces, or unheated utility areas | Calling before a frozen pipe bursts gives us the best chance to thaw it without a full pipe replacement. |
| Faucet & Fixture Installation | faucet repair and replacement, sink and fixture upgrades, frost-free hose bib installation | Remodels, fixture upgrades, and outdoor faucet replacement before winter | Frost-free hose bib installation is a practical upgrade for Jefferson homes before the first hard freeze of the season. |
| Emergency Plumbing | burst pipe response, major leak containment, no-hot-water calls | Any urgent situation where water is actively damaging the home or the household has lost hot water | We take calls every day from 6:00 AM to 8:30 PM, and same-day service is often available for urgent situations. |
| Water Heater Repair & Replacement | tank and tankless repair, full unit replacement, thermostat and element service | Households or businesses with no hot water, inconsistent temperature, or an aging unit | Tankless upgrades are a common choice for Jefferson homeowners who want on-demand hot water and a smaller footprint. |
| Sump Pump Installation | new pump installation, worn unit replacement, discharge line and check valve service | Jefferson homes with basements vulnerable to spring snowmelt and heavy rain | A properly sized pump with a clear discharge route is what separates a dry basement from a water damage situation during snowmelt season. |
| Water Pressure & Shutoff Valve Repair | pressure regulator diagnosis and replacement, shutoff valve repair and replacement, backflow preventer installation | Homes with low pressure throughout or at a single fixture, and seized or failing shutoff valves | A failing pressure regulator affects the whole house at once, while a mineral-clogged line usually shows up at specific fixtures. |
| Toilet Repair & Installation | flapper and fill valve repair, wax ring replacement, full toilet replacement | Homeowners with a running, rocking, or leaking toilet or a fixture that needs upgrading | A running toilet can waste a significant amount of water before it shows up as visible damage, but the repair is usually straightforward. |
| Sewer & Main Line Service | main line clearing and inspection, camera line inspection, trenchless repair where applicable | Homes with slow drains throughout, gurgling toilets, or sewage odors near floor drains | We service the sewer line from the house out to the city connection. Tank and drain field work falls outside what we do. |
| Drain Cleaning & Clog Removal | kitchen and bathroom drain clearing, main line clog removal, hydro jetting for grease and root buildup | Homeowners and commercial kitchens with slow or backed-up drains | Recurring clogs in the same drain often point to a line condition issue, not just a surface blockage. |
Call (262) 955-2935 to get a quote and talk through the details with someone who can answer your specific questions.
(262) 955-2935