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Frequently Asked Questions

Got plumbing questions? We’ve got honest answers. At Cosmic Plumbing, we know McHenry homeowners want clarity before they call — no hidden fees, no vague estimates, just straight talk about pricing, timelines, and what to expect. Whether you’re dealing with an older home’s quirky pipes, winter freeze concerns, or a straightforward repair, our team understands the challenges in this area. We’re here 7 days a week and show up when we say we will. Read through our most-asked questions below, and if you don’t find what you need, pick up the phone.

  • Are you licensed and insured in Illinois?

    Yes — we are fully licensed in Illinois and carry both general liability and workers’ compensation insurance, so you’re fully protected if anything unexpected happens on your property. We’re also Level 3 Navien certified, which means we’ve completed advanced training on tankless water heater installation and repair. Beyond that, every job includes our workmanship warranty, so if something doesn’t perform as promised, we make it right at no extra charge. We’re happy to share our credentials and proof of insurance before any work begins. Call us at (847) 946-6664 if you’d like to verify our certifications.

  • How long does a typical plumbing repair or installation take?

    Most repairs and single fixture installations take between 1 and 3 hours, while a water heater replacement typically takes 3 to 5 hours from start to finish. We’ll give you a realistic timeline during your free estimate and stick to it — no vague “sometime this afternoon” promises. For larger projects like whole-home repiping or bathroom remodels, we schedule multiple visits and create a detailed timeline upfront so you know exactly what to expect and when your water will be shut off. We also work with your schedule, including early mornings, evenings, and weekends, because we know disruption matters when you’re running a household. Contact us at (847) 946-6664 to discuss your specific project and get a clear timeline.

  • Do you offer free estimates, and what does the estimate process look like?

    We always offer free estimates — no strings attached, no hidden costs buried in fine print. When you call or contact us, we’ll schedule a time that works for you, and we’ll come to your home to assess the issue firsthand so we can give you an accurate price and timeline. During the estimate visit, we’ll walk you through what’s happening, explain our solution, show you the options if there are multiple ways to fix it, and tell you exactly what it will cost before we do any work. We believe you should never be surprised by a bill, so we break down the labor, materials, and any other charges upfront. If you have questions about the estimate or want a second opinion, we’re happy to discuss alternatives — just give us a call at (847) 946-6664.

  • What plumbing problems are common in older McHenry homes, and how do you handle them?

    McHenry has a lot of homes from the 1960s, 1970s, and 1980s, and many of them still have galvanized steel pipes or cast iron sewer lines that corrode over time — this is one of the most common issues we see. Corroded pipes can restrict water flow, cause leaks behind walls, and eventually fail completely, especially during harsh Illinois winters when temperature swings stress the metal. We’re experienced with repiping older homes using modern materials like PEX or copper, and we know how to work in tight spaces and navigate the layouts of vintage McHenry housing stock without unnecessary wall damage. If you’re not sure whether your home has aging pipes, we can inspect them during a free estimate and let you know if a repiping project is coming in your future or if your current system is still holding up. Call us at (847) 946-6664 to schedule an inspection — it’s the best way to plan ahead and avoid an emergency during winter.

  • How much does it cost to install a water heater in McHenry, and what's included?

    Water heater installation costs vary based on the type (traditional tank, hybrid, or tankless) and your home’s setup, but we’ll never quote you a price without seeing the job first — that’s how we avoid surprises. A traditional tank water heater typically costs between $1,200 and $2,000 installed, including removal of the old unit, new piping connections, and testing, whereas a tankless unit or specialized system runs higher but saves money on energy over time. We’re Level 3 Navien certified, so if you’re interested in a high-efficiency tankless water heater, we can walk you through the benefits, costs, and payback timeline during your free estimate. Our quote always includes labor, materials, disposal of your old unit, and a full warranty on workmanship, so there are no hidden charges once you sign on. For a transparent quote tailored to your home and budget, contact us at (847) 946-6664 to schedule a free estimate.

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