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Failing cast iron sewer pipes don’t always burst — more often, they leak slowly into North Texas soils. That hidden moisture is a serious problem. Under a concrete slab foundation, water seeps into the clay, causing it to swell, heave upward and sometimes erode the soil. Over time, that movement can shift the foundation, crack walls, and damage flooring.

The same can happen with pier and beam homes. In those cases, leaking pipes can also leave standing water in the crawl space, leading to mold growth and damage to the subfloor or flooring above.

This is why old cast iron pipe replacement is so critical. Pipe replacement services that include a full underground pipe replacement and cast iron to PVC conversion give you a long-term solution. While the cast iron pipe replacement cost can feel significant, it’s far less than repairing both your plumbing system and your foundation later.

Protecting your home means addressing the problem at the source. A complete system replacement is the only way to eliminate the risk of ongoing leaks and the expensive structural damage they cause.

👉 Have questions about how cast iron pipes could be affecting your foundation? Contact In-House Plumbing Company today for honest guidance.

When it’s time for pipe replacement services, asking the right questions helps you find a team that’s transparent, reliable, and experienced. At In-House Plumbing Company, we believe you deserve honest answers up front — because choosing the right contractor matters.

Here’s what you should ask before moving forward with an old cast iron pipe replacement:

1. Will the same company handle both excavation and plumbing?

Splitting the work between different crews or companies can create gaps in responsibility — especially when problems arise.

2. Are they a licensed plumbing contractor or just an excavation crew?

Plumbing work under a slab is serious. Hiring an unlicensed team puts your home and health at risk.

3. Do they carry BOTH general liability and workers’ compensation insurance?

Workers’ comp isn’t required in Texas, so many companies skip it — putting you at risk if someone gets hurt.

4. Will they provide a clear, written proposal and diagram?

If there’s no documentation of what’s included or excluded, you won’t know what you’re getting until something goes wrong.

5. What’s included in their pricing, and is there flexibility?

At In-House Plumbing, we include sprinkler repair, brick reinstatement, and a 5-year warranty by default — but offer opt-out discounts to reduce cost.

6. What’s their backfill process — and do they reuse your soil?

Mixing in chemicals or different soils can damage your foundation. We use only your original soil, hand-packed section by section.

7. Do they rely on sewer cameras to evaluate pipe integrity?

Cameras can’t see cracks, corrosion, or missing sections from the outside. Don’t trust your decision to camera footage alone.

8. Do they push trenchless pipe methods?

These often sound great but fail in real-world conditions. Most trenchless systems can’t guarantee proper slope, sealing, or durability.

9. Will they be reachable later — and actually show up if there’s a problem?

A warranty is only as good as the company behind it. Will they stand behind their work five years from now?

10. Are they upfront about inspections, permits, and local code requirements?

Every city in DFW requires permits. If they’re suggesting skipping them, that’s a red flag.

Choosing the right company isn’t just about cast iron pipe replacement cost — it’s about finding someone you can trust.

👉 Talk to In-House Plumbing Company today to learn more about how we do things differently.

Choosing pipe replacement services doesn’t mean uprooting your life. There’s no reason to move out. At In-House Plumbing Company, many homeowners in Allen, Texas, and surrounding areas choose to stay in their homes during an old cast iron pipe replacement, and we design our underground pipe replacement process to be as smooth as possible.

Noise and Accessibility

We typically arrive between 7:30 and 8:00 AM and aim to finish for the day around 5:00 PM, but depending on the job and conditions, we may work later — sometimes several hours later. Our schedule is designed to keep your job moving efficiently, even if it means long days for our crew. We do our best to keep noise to a minimum, but as with any construction project, some disruption is possible.

Inside access may be needed occasionally throughout the job. We ask that you ensure clear access to all bathrooms, the kitchen sink, and the washer area, as we may need to inspect, work on, or confirm connections during different phases of the work.

Water Use and Interruptions

We won’t shut off your water for the entire duration of the job, but there will be times when you won’t be able to use water or flush toilets — especially while we’re connecting the new PVC system and waiting for inspection. Our crew will do their best to give you a heads-up before these interruptions so you can plan accordingly. In extremely rare cases where the plumbing work isn’t complete by the end of the day, we work to ensure you have at least limited water use until the next day.

Cleanliness and Safety

Our cast iron to PVC conversion work often involves significant excavation under the slab or in the yard. We typically lay plastic on the ground before moving dirt to help protect the surrounding area.

That said, because of the nature of underground pipe replacement, our crews will need to move through various areas around your home — both inside and outside — to access different parts of the system. Occasionally, we may need to create an access hole inside, though this is rare.

We don’t necessarily clean up at the end of each day, but we work to avoid unnecessary mess and keep things as organized as possible throughout the process. A thorough cleanup is completed once the job is finished.

Timeline and Cost Transparency

Most jobs wrap up in 3–5 business days. Projects are organized and predictable, especially compared to ongoing spot repairs or drawn-out jobs. And while cast iron pipe replacement cost is typically higher than patching, this all-in-one solution usually costs less overall when you factor in avoiding multiple repairs later.

Choosing a full underground pipe replacement keeps your plumbing and your household running with minimal interruption.

Have questions on how home life works during the job?

We’ll walk you through each step — no pressure.

👉 Contact In-House Plumbing Company today to learn more.

When it comes to cast iron sewer problems, many homeowners ask if they can get by with a spot repair instead of a full replacement. But here’s the truth: old cast iron pipes don’t fail in just one place. Once they start to go, the entire system is at risk.

It’s common to see companies offer “quick fixes” or trenchless spot repairs — but these are often just temporary solutions. You might fix one section, only to face another leak or blockage a few feet away. And any portion you spot-repair today will still need to be replaced later when you do a full system replacement — meaning you’ll pay for the same section twice.

At In-House Plumbing Company, we don’t offer repairs because we believe in solving the real problem — not just covering it up. We focus exclusively on full underground pipe replacement under the home and in the yard. We remove all the old cast iron in those areas and replace it with new PVC designed to last for decades.

Yes, the cast iron pipe replacement cost may seem higher upfront. But when you factor in the cost of repeat repairs and inflation, a full replacement now can save you significantly in the long run. You’re paying once — not over and over again.

When considering pipe replacement services, the smart investment is often the one that eliminates future headaches.

Thinking about long-term solutions?

We’re happy to explain your options with no pressure.

If you’re ready to take action, we’ll help you move forward confidently.

👉 Contact In-House Plumbing Company today and make the most of your investment.

When homeowners consider pipe replacement services, it’s often because their old cast iron pipes are failing. The truth is, cast iron sewer lines will go bad — it’s just a matter of when. Corrosion, cracks, and blockages are guaranteed over time, especially in older North Texas homes.

That’s why many homeowners choose a cast iron to PVC conversion. PVC is durable, resistant to corrosion, and designed to last decades. It’s a major upgrade. But it’s important to understand that replacing cast iron with PVC doesn’t mean you’ll never have a plumbing issue again.

Why? Because no pipe material is immune to movement — and here in North Texas, we have some of the most active soils in the country. Expanding and contracting clay soils, along with foundation shifts, can cause PVC pipes to crack, misalign, or even come apart over time. In particular, transitions between old cast iron and new PVC under the slab can be vulnerable if the structure moves enough.

We tell every customer: the reason to replace cast iron isn’t to eliminate all future problems — it’s because cast iron is a known failure. You’re replacing something you know will go bad with something that should last much longer.

At In-House Plumbing Company, we take care to install systems that are built to hold up. Our underground pipe replacement process is designed for long-term success, but we also believe in setting honest expectations.

If you’re evaluating the cast iron pipe replacement cost, it’s worth knowing you’re making the right move — just not a forever guarantee.

Have questions about the process or your options?

We’re here when you’re ready.

👉 Contact In-House Plumbing Company today.

When it comes to cast iron pipe replacement, most homeowners are dealing with serious plumbing problems — and the last thing they want is a job that drags on for weeks or months. That’s why one of the biggest things that sets In-House Plumbing Company apart is how quickly we complete our work.

Our full underground pipe replacement jobs typically take 3 to 5 business days from start to finish — and occasionally as little as 2 — including excavation, plumbing, inspection, and backfill. We’re often told by customers that they’re surprised how fast we work, especially after hearing stories of other companies taking two weeks or more.

In some cases, we’ve even heard of jobs taking months to complete — and worse, in one of those, we had to go back a year later to fix parts of the job that were not done right by the other contractor, and the customer ended up in a lawsuit against that company, which turned into a nightmare.

We don’t cut corners, and we don’t skip steps. But we do know what we’re doing. Our crews specialize in old cast iron pipe replacement and cast iron to PVC conversion, and we’ve refined our process over decades to get it done right — and done quickly.

If you’re comparing quotes, pay attention not just to cast iron pipe replacement cost, but also to how long the work will take and how organized the process sounds. Being without plumbing for weeks is more than inconvenient — it’s disruptive to your life.

Fast, reliable, and high-quality work shouldn’t be rare. At In-House Plumbing Company, it’s standard.

Want the job done right — and done fast?

We’re here when you’re ready.

Contact In-House Plumbing Company today.

If you’re planning an old cast iron pipe replacement, it helps to know what to expect from start to finish. At In-House Plumbing Company, we aim to make the entire process clear, straightforward, and as low-stress as possible.

It starts with a free estimate. We visit your home — inside and out — for about 1 to 2 hours to gather detailed measurements and notes. That info is sent back to our office, where we create a diagram showing how we’ll excavate and reroute the plumbing. Then we send you the estimate by email, usually the same day.

Our proposals include options like warranty length (1, 3, or 5 years), sprinkler and brick reinstatement responsibility, and even a check discount. Occasionally, we offer a 10% discount if the work begins by a certain date, or a small discount for allowing a yard sign after the job is done.

If you decide to move forward, just sign the proposal online — it automatically alerts our team. We’ll contact you within 24–48 hours (Monday through Friday) to schedule the work.

The job itself usually takes 3 to 5 business days, depending on weather and project size. Excavation is typically done first and takes 1 to 2 days. Plumbing usually follows on day two but may extend into day three on larger projects. Inspections are often completed on day three but can also fall on day four. Backfill may happen the same day as the inspection or could extend into day four or five depending on several factors.

You can remain in the home during the project. Water isn’t shut off completely, but there will be periods where usage is limited. You don’t need to be home full-time, but we do need access to all areas inside and around the house.

Whether you’re planning an underground pipe replacement or a cast iron to PVC conversion, we keep the cast iron pipe replacement cost transparent — and the process clear.

Ready to get started?

We’re here when you’re ready to move forward. Contact In-House Plumbing Company today.

When it comes to pipe replacement services, many homeowners choose to pay with a credit card — and it’s easy to see why. Credit cards offer convenience, purchase protection, and for some, rewards like points, airline miles, or cash back. But when you’re dealing with major projects like old cast iron pipe replacement, those points come with a hidden cost.

Most people don’t realize that businesses pay credit card processing fees, typically between 2.5% and 5%, every time a card is used. On a $20,000 to $50,000 job — which is common for underground pipe replacement — that can add up to thousands of dollars in fees.

That “1% cash back” isn’t free. You’re actually paying more than double that amount in fees just to get it. Credit card companies aren’t giving away money — they’re taking a percentage from the business and passing a small piece of it back to you.

At In-House Plumbing Company, we do things differently. Every proposal we send includes a check discount — which is the amount we would have paid in card processing fees if you chose to pay by credit card. If you want the convenience of a card, you can still do that. But if you’d rather save the fee, paying by check gives you that option up front.

Not all companies offer this. Most just build credit card fees into their prices and don’t give you a way to avoid them.

Transparency is part of how we keep your cast iron pipe replacement cost honest — whether you’re planning a cast iron to PVC conversion or any other major upgrade.

Ready to move forward with your project?

We’re here when you’re ready.
Contact In-House Plumbing Company today.

Many homeowners ask: how long should cast iron pipes last? While manufacturers intended cast iron to survive up to 50 years, real-world conditions often lead to issues much sooner — usually between 35 to 50 years.

In North Texas, several things contribute:

• Acidic Soil Conditions: Our soil can promote faster corrosion on the outside of pipes.

• Everyday Household Products: Chemical cleaners, soaps, and even detergents slowly eat away at pipe interiors.

• Manufacturing Variations: Older cast iron pipes often have thinner spots from when they were spun at the factory. If these weak spots face downward, deterioration happens faster.

• Water Presence: Excess moisture under your home can accelerate corrosion, although shifting clay soil doesn’t usually break pipes directly.

If your home was built before 1986, it’s smart to start preparing for a cast iron pipe replacement — before damage becomes serious.

Wondering about your home’s pipes?

We’re happy to explain what you’re seeing and offer honest advice with no pressure. If you’re thinking ahead about replacement, we’re ready when you are.

Talk to In-House Plumbing Company today and get the clarity you deserve!

Waiting to replace deteriorating cast iron pipes can seem like a way to save money, but it often leads to much higher costs down the road. As these pipes age, they become more susceptible to cracks, corrosion, and leaks — all of which can lead to unexpected plumbing disasters.

The most immediate issue you’ll likely encounter is a cast iron pipe backup. This can cause flooding, sewage problems, and water damage inside your home. If a backup happens under a slab foundation, it could compromise the foundation, leading to cracks and costly repairs.

Another hidden cost is the impact on your home’s structural integrity. Leaking pipes can saturate the soil around your foundation, leading to heaving or settlement — both of which can severely damage your home. Foundation repair costs can range in the thousands, making the cast iron pipe replacement cost look like a bargain.

When you choose to replace your old cast iron pipes with PVC, you’re investing in a solution that lasts. PVC pipes resist corrosion and shifting soils, meaning fewer problems in the future. While there is an upfront cost for a cast iron to PVC conversion, the long-term savings from avoiding water damage, foundation repairs, and expensive backups are well worth it.

The bottom line: delaying underground pipe replacement can cause even more costly damage in the long term. It’s better to deal with the cost of replacement sooner rather than face unexpected expenses later.

Thinking of replacing your pipes?

We’re happy to offer honest advice and help you explore your options for cast iron pipe replacement. If you’re ready to take the next step, we can provide an estimate that works for your home.

Get in touch with In-House Plumbing Company to schedule your consultation!