How do you usually tackle installing a new drain—DIY or call in a pro?

Title: How do you usually tackle installing a new drain—DIY or call in a pro?

I totally get where you’re coming from about the cost savings. That’s actually what pushed me to try my first under-slab drain install last year. I was nervous about the jackhammer part too, but once I started researching and watching a bunch of YouTube videos, it felt a lot less intimidating. The rental yard guy even gave me a few tips about handling the jackhammer safely, which helped settle my nerves.

Here’s how I approached it, step by step, in case it helps anyone else on the fence:

1. **Locate and Mark Everything:** First thing, I mapped out exactly where the drain needed to go and triple-checked for any electrical or plumbing lines. I used a cheap stud finder and a borrowed pipe locator. Honestly, this part took longer than the actual breaking up of the slab.

2. **Renting the Right Gear:** I went with a mid-sized electric jackhammer. It was heavy, but manageable. Gloves and ear protection are a must—my hands were buzzing for hours after.

3. **Breaking the Slab:** I worked in small sections, maybe 18 inches at a time. It’s noisy and messy, but not as physically demanding as I expected. The trickiest part was hauling out the broken concrete. I ended up using a wheelbarrow and a couple of those 5-gallon buckets.

4. **Digging the Trench:** This part was honestly the worst for me. Clay soil is no joke. I used a trenching shovel and a pry bar. If you have rocky soil, plan for extra time.

5. **Laying the Pipe:** I dry-fitted everything before gluing. Double-checked the slope with a level (aimed for about 1/4" per foot). I also wrapped the pipe in some old foam insulation where it passed under the foundation, just in case.

6. **Backfill and Patch:** I filled in with gravel first, then compacted soil, then patched the concrete. The patch isn’t perfect, but it’s in a utility room, so I’m not sweating it.

I’ll admit, if this had been in the main living area or if I’d had any doubts about hitting something critical, I probably would’ve called a pro. But for a laundry room drain, it felt worth the risk. The sense of accomplishment was huge, and I saved a couple grand.

Not saying everyone should go for it, but if you’re methodical and don’t mind some heavy lifting, it’s definitely doable. Just budget extra time for cleanup—concrete dust gets everywhere...

I’m always a little wary of DIY when it comes to anything under a slab, honestly. You nailed it with the “triple-check for lines” part—seen too many folks get a little too confident and end up with a surprise water main or, worse, electrical. That’s not a fun emergency call to get.

Your step-by-step is solid, though. I’d just add: if you’re even a little unsure about what’s under there, it’s worth the hundred bucks or so to have someone come out and mark utilities. That peace of mind is hard to beat. Also, those jackhammers can get away from you if you’re not careful—seen more than one bruised foot or cracked tile from someone thinking they could “just go slow.”

I get the appeal of saving money (and yeah, laundry room vs. living room is a big difference), but I’ve also seen DIY jobs where the slope was off just enough to cause slow drains or backups down the line. That’s a headache nobody wants six months later.

Not trying to scare anyone off, but I always say: if you’re not 100% sure about what you’re doing, or if there’s any risk of hitting something important, calling in a pro can save you from a much bigger bill later. And yeah, concrete dust... that stuff finds its way into places you didn’t even know existed.

Props for tackling it yourself and making it work. Just don’t skip the safety gear or the utility checks—nothing ruins your weekend like an accidental power outage or a trip to urgent care because of flying debris.

“I’ve also seen DIY jobs where the slope was off just enough to cause slow drains or backups down the line.”

Couldn’t agree more about the slope—seen more than one “just eyeballed it” turn into a swampy mess. Here’s my quick take:

- Mark those utilities, unless you enjoy surprise fountains.
- Double-check your slope with a level, not just hope and prayers.
- Jackhammers: fun until your tile looks like a jigsaw puzzle.
- Concrete dust... you’ll be finding that stuff in your socks for weeks.

DIY’s fine if you’re careful, but one wrong move and it’s “hello, insurance claim.”

I get where you’re coming from, but honestly, I see more issues from folks overthinking the slope than underestimating it. People get so hung up on the “perfect” pitch that they end up with something way too steep, which isn’t great either—water outruns the solids and you’re still calling someone like me down the road.

Utility marking’s important, yeah, but I’ve seen more busted pipes from folks not knowing how deep to go or not realizing what’s under their slab. And jackhammers... sure, they make a mess, but I’d take a messy floor over a hidden leak any day.

DIY can work if you actually read up and don’t just wing it. But if you’re not 100% sure, sometimes it’s cheaper to just pay for a couple hours of pro labor than to fix a botched job later. Not saying don’t try—just know your limits before you start tearing into concrete.

I’ve run into that “perfect pitch” trap a few times with tenants who tried to DIY.

“People get so hung up on the ‘perfect’ pitch that they end up with something way too steep, which isn’t great either—water outruns the solids and you’re still calling someone like me down the road.”

From my experience, I’ll tackle minor drain installs myself if it’s accessible and doesn’t involve breaking up concrete. Anything under a slab or near utilities, I’m calling in a pro. The cost of fixing a hidden leak or a misaligned pipe is just too high—especially if you have tenants living there. I had one unit where someone “helped” by running a new line without checking for electrical under the slab... ended up frying half the outlets in the kitchen.

DIY is fine if you know what you’re doing and double-check everything, but there’s no shame in paying for expertise when it comes to drains. Sometimes peace of mind is worth more than saving a few bucks upfront.