c/commercial-contractor-talk

I laughed at a foreman for using a 20-year-old level, now I own two

I used to think the old timers were just being cheap when they'd pull out beat up tools from the 90s. My first big commercial job in Denver we had to pour a slab that had to be dead nuts flat for some medical equipment. The foreman pulls out this old aluminum level with half the bubbles cracked and I almost said something. He showed me it had never been dropped off a ladder unlike the fancy new digital ones. We checked his against a laser and it was spot on while my newer stuff was off by a 16th over 8 feet. Next day I bought two vintage levels off Facebook for 40 bucks total. Anyone else find that the old stuff outlasts and outworks the new garbage?

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jadew63•14d ago

Hit 200 linear feet of conduit in one shift and it broke my brain a little

I've been doing commercial electrical work for about 8 years now, and last Friday I somehow ran 200 feet of 3/4 EMT in a single 10 hour shift. That's about double my normal pace, and honestly I don't even know how it happened. It was a straight shot in an unfinished warehouse with no obstructions, but still. The foreman checked my work and said it was all straight too, no hangers loose. It made me wonder if I've been moving too slow this whole time or if I just got lucky. Has anyone else hit a weird milestone like that and felt like you were either a genius or a slacker the rest of the week?

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parker_thomas•19d ago

Switched to spray foam on a big warehouse job and saved 14 hours

We were doing a 30,000 square foot warehouse ceiling in Phoenix and I decided to try closed cell spray foam instead of fiberglass batts. It took a full 2 days less on install time and the client's HVAC guy said they'd cut their cooling load by nearly 20 percent. The upfront cost was higher but the labor savings made up for it on this scale. Has anyone else found spray foam worth it on big commercial builds?

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nathana48•19d ago

Warning: That perfect week on the Wilson job site almost bankrupt me

Last September I had a week where everything went right on a 45k buildout at a dental office in Akron. Concrete poured flat on Monday, ductwork fit first try on Tuesday, and the drywall crew showed up early on Wednesday. I was walking around thinking I finally had a crew that could handle anything. Then Thursday morning the building inspector shows up and flags our fire sprinkler rough in because the city changed the code two days before. Turns out the GC never told us about the update because he was on vacation. We had to rip out 120 feet of pipe and redo it with bigger spacing. Cost me 3 days and about $4,200 in materials and labor. The owner was cool about it but my profit margin for that whole job went from 12% to maybe 2%. Has anyone else had a run of good luck turn into a nightmare because somebody dropped the ball on updates?

2 comments

drew_park•19d ago

Chose galvanized straps over stainless for a beachside deck job

Had a client in Ventura who wanted a commercial deck done on a budget. I pushed for stainless since we were 200 yards from the ocean, but they said galvanized was fine. 8 months later I got a call about rust stains running down the support posts. Now I'm redoing the whole thing with stainless and the client is paying double. Anyone else have a spec battle with a client that came back to bite them?

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alice_palmer20•20d ago

Just realized comparing cheap caulk to mid-grade on a big job was a painful lesson

Last month on a 15 unit apartment building in Phoenix I used the really cheap stuff on the first 5 units. Let me tell you, it cracked and pulled away from the trim within 2 weeks in the heat. Had to go back and redo all of it with the better brand. The extra $40 per case woulda saved me 3 days of rework. Anyone else learn this the hard way with a specific brand?

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graygonzalez•20d ago

Third time using that new concrete saw and the blade guard just snapped clean off

Was on a job out in Arlington yesterday, cutting expansion joints on a parking lot repour. About halfway through the second cut, heard this loud crack and saw the guard fly off into the dirt. No warning, no weird vibration before it happened. The saw is only 2 months old. Called the rental place and they said it's a known issue with that model but didn't tell me upfront. Now I'm out half a day waiting for a replacement. Anyone else run into guard failures on those newer St*** models?

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sandrat24•20d ago

Concrete curing mats beat heated blankets on a big parking garage job I did in Detroit last winter

Everyone swears by those heated blankets for cold weather pours but on a 8,000 square foot slab the mats held temp way steadier and didn't cost a fortune in rental fees. Anybody else find the mats work better or am I just picking the wrong blankets?

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lindamartin•22d ago

Tried to save time with a drywall lift last Tuesday... big mistake.

I was hanging 12-foot sheets in a new strip mall over by the old mill district, figured I'd rent a fancy auto-lift instead of calling a helper. The thing tilted sideways halfway up and dumped a whole sheet right onto a brand new HVAC unit, dented it to hell. Boss wasn't thrilled, so what's your go-to when a tool just doesn't cooperate?

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jadew63•23d ago

Old foreman told me to double tape my threaded rod drops and he was dead right.

Worked a job in Nashville last summer, 4 story office build. Had a foreman named Roy who kept telling me to double tape every rod drop. I thought he was just being old school and wasting tape. Third floor we had a ceiling grid come down in the middle of the night. 12 footer just peeled off the rods. Turns out the vibration from the HVAC unit above loosened the single wraps. Roy was retired by then but I called him to thank him. Cost us 2 days and like $800 in material to fix. Anyone else run into a situation where you ignored advice from an old timer and paid for it later?

2 comments

oscarw83•24d ago

Why I stopped using expansion foam on every rough opening

Tbh I used to foam every window and door frame like it was the gospel, but after a job on a commercial build in Spokane last March the GC made us rip it all out because it was trapping moisture against the WRB. Has anyone else run into this issue on tighter buildings?

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west.henry•25d ago

Foundation crack found under a brand new slab in Phoenix last Tuesday

I poured a 40 yard slab for a strip mall last week and five days later the GC points out a hairline fracture running from a control joint to the edge. Turns out the compacted fill had a soft spot right under that section about 8 inches deep. I had to saw cut a 4 foot square out and repour it with a high early mix to keep the schedule on track. Has anyone else dealt with subgrade issues showing up after the pour finished?

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karen_perry38•27d ago

Tried polyurethane caulk vs silicone for a commercial storefront job in Cleveland

Honestly, I always used silicone for glass storefronts because that's just what the old guys taught me. But on a job last month at a strip mall on Euclid Ave, the polyurethane was way easier to tool and paint over without that sticky mess. Has anyone else made the switch or am I missing something with silicone's flexibility?

2 comments

walker.max•28d ago

Took me 4 days to track down an underground water leak that was right in front of me

Everyone kept telling me to just call a leak detection service and be done with it. But I figured I could find it myself with a simple probe and some patience. After digging 8 holes across a parking lot in Phoenix last July, I finally found the leak 3 feet from the main shutoff valve. Wasted 30 hours and a whole weekend because I didn't start at the most obvious spot first. Sometimes the popular "just hire it out" advice isn't wrong, but I still hate admitting I should have listened. Has anyone else burned days on a problem that ended up being right under their nose?

3 comments

abby_wilson51•29d ago

Overheard a project manager say 'good enough' about a fire damper install

I was on a job in Austin last week and heard a PM tell his crew that a fire damper was 'good enough' even though it was off by half an inch. That thing won't seal right in a fire, and that's how people get hurt. It made me think about how corners get cut when nobody's watching. I walked over and pointed it out, and he got all huffy but fixed it. Anybody else run into inspectors or managers who just don't care about the small stuff?

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nora_dixon•1mo ago

Question about that hotel renovation I saw last week in downtown Portland

I walked through the Marriott on 5th Ave last Tuesday and noticed they were using LVL beams for the lobby expansion instead of steel, has anyone else seen that approach hold up over a few years in a high-traffic commercial space?

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dylan_bell•1mo ago

A superintendent told me my punch lists were too vague and I started numbering every single issue

He said 'if I have to ask what you mean by touch up paint, your list is useless' so now I write things like 'west wall column 3 - 2 inch scratch above outlet' with a photo reference. Has anyone else had to overhaul their closeout documentation?

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graygonzalez•1mo ago

That old sewer line repair in Denver took me 8 hours longer than I budgeted for

I showed up thinking it was a simple pipe patch job on a 4 inch cast iron line. Took me 2 hours just to expose the damn thing because the concrete was thicker than any permit said it would be. Then I found out the previous guy had wrapped it in some weird tar paper that crumbled everywhere. By the time I got the new PVC ferncos on it was already dark. Has anyone else run into old jobs that just completely lie about what's underground?

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margaret_kelly55•1mo ago

A job in Phoenix made me rethink my whole approach to site prep

We were laying a foundation for a new strip mall and the ground was way more uneven than the survey showed. Had to bring in a laser level and re-grade the whole area, which set us back two full days. Anyone else run into bad survey data costing them time?

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eric_murray26•1mo ago

I switched from full demo to selective salvage on a Phoenix strip mall job last year

For years I would just knock everything down to the slab, thinking it was faster and cleaner. On that Arizona project, the owner asked me to try saving the old steel beams and concrete tilt-up panels. We spent three extra days on careful removal, but it cut our new material bill by almost 15 grand and saved a month on the permit review. Now I look at every structure for what we can keep, not just what we can tear out. Has anyone else made that shift and found it actually pays off?

3 comments

king.andrew•1mo ago

Just dropped $1200 on a new Hilti TE 6-A36 cordless rotary hammer

It was for a big concrete demo job in an old office building downtown. The thing chewed through the slab like nothing, but the battery life was way shorter than they claimed. I got maybe 45 minutes of hard use per charge, which meant buying two extra batteries for another $400. Anyone else run into this with the newer brushless demo hammers?

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umamartin•1mo ago

Got a call at 3 AM about a sprinkler line we capped off in a Phoenix strip mall

We were finishing a tenant fit-out last month, working on the fire suppression system. The plan was to cap a 2-inch sprinkler line that serviced the old tenant space. My guy used a standard threaded cap, torqued it down, and we passed inspection. Two weeks later, I'm woken up by the property manager screaming about a flood in the shared hallway. Turns out, the pressure from the main riser, combined with the Arizona heat making the pipes expand, blew that cap right off. We had water pouring through the ceiling tiles into three other businesses. I had to call in a favor with a plumbing crew to get a welded cap on there by sunrise. The cleanup bill was over $8,000. Has anyone else had a threaded fitting fail under system pressure like that, or was it just bad luck?

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richard_dixon•1mo ago

Unpopular opinion: The new city inspector for the downtown zone is making things impossible.

He flagged a perfectly good concrete pour on 5th Street because the slump test was 1 inch off spec, which cost us a full day and $800 in overtime. Has anyone else had to deal with him, or is it just our crew?

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barbaraw47•1mo ago

Talked to a retired plumber at the supply house and it changed my mind on a job

I was picking up some 2-inch PVC for a tenant fit-out last Thursday, and an old guy named Ray saw my cart. He said, 'You know, for that run behind the wall, you're gonna want to use a 45-degree offset, not two 90s. The pressure drop is real.' I've always just used two 90s because it's faster. But he explained how it saved a building manager a ton on pump costs over ten years. I redid my plan that afternoon. Has anyone else had an old-timer give you a tip that actually made you stop and switch up your method?

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jadew63•1mo ago

I used to think I could eyeball a concrete pour every time

For a long time I just went by feel and past jobs, never really measuring slump or checking the mix design sheet. Then I got burned on a big warehouse floor job in Spokane about six months back. The truck showed up, I gave it the old look, and said go ahead. Two days later we had crazy cracking and a surface that looked like alligator skin. The GC made us tear out 400 square feet and eat the cost. The batch plant guy pulled the ticket and showed me the water content was way off spec for the weather that day. Now I make the driver wait while I do a proper slump test with the cone every single load, no exceptions. I keep a log book in my truck too. Has anyone else had a pour go sideways from skipping the simple checks?

3 comments