Who This Checklist Is For (And When to Use It)

You're a small contractor (or a seriously determined homeowner) juggling a bathroom or kitchen reno. The client wants high-end Delta fixtures—the look and the warranty—but the budget is tight. I've been there.

This is a 7-step checklist I use when I'm planning a project where margins matter. It's not a design guide. It's a financial roadmap. You use it before you order a single part.

I'll lay out exactly how I price out a Delta fixture package, spot hidden costs, and avoid a budget blowout that leaves you eating the difference.

Step 1: Map the Complete Fixture List (Don't Guess)

This sounds obvious, but I still kick myself for the times I didn't do it properly. You need a full, written-down list of every single plumbing fixture and component. Not just the vanity faucet. Everything.

Your checklist for this step:

  • Rough-in valve. Delta's rough-in valves (like the MultiChoice or Monitor series) are different from the trim kit. You need to order them separately. If you order the wrong rough-in for the trim, you're stuck with a $300 paperweight.
  • Cartridge. Know which cartridge your valve needs. Delta has dozens. If you pick the wrong one, your client's single-handle faucet becomes a single-hole leak.
  • Trim kit. This is the visible part—handle, escutcheon, spout. Looks good, but it's useless without the valve.
  • Water supply lines. Not always included. Budget $10-25 per fixture for these.
  • Drain assembly. Delta often sells these separately. A pop-up drain can cost $40-100.

I remember one project in Q2 2024 where a junior guy wrote down "Delta Trinsic kitchen faucet" and we ordered it. The actual order needed: faucet, deck plate (for a 3-hole sink), supply lines, and a separate soap dispenser. That oversight cost us $180 and a three-day delay. We eat the expedited shipping on that one.

Step 2: Get the Delta Part Numbers (And Verify Them Twice)

Delta has a massive parts catalog. I mean, massive. You can't rely on a product name. You need the model number. A "Delta Lahara" shower system might have 15 different configurations. The wrong one means no installation.

My rule: Create a spreadsheet with columns for: Room, Fixture Type, Delta Part #, Description, Quantity, Unit Price, Total.

Delta's website has a decent lookup tool. But I also use their spec sheets (PDFs). Those PDFs are gold—they list everything included in the box and what you need to order separately. Pull the number from there, not from a retailer's product page.

Example: The Delta T14459-SS is a kitchen faucet. But the rough-in valve for it (if it's a pull-down model with a separate handspray) might be the R2200. Not included. You'll find that buried in the fine print.

Step 3: Compare Price Sources (Retailer vs. Distributor vs. Wholesale)

This is where I see a lot of people mess up. You can't just go to Home Depot and click "buy."

For a professional job, your sourcing options (as of Jan 2025):

  • Big Box (HD / Lowe's / Ferguson). Good for consumer-grade stuff. Prices are competitive on basic models. But they rarely have the full line of replacement parts or commercial-grade rough-in valves.
  • Online Plumbing Supply (SupplyHouse, PlumbingSupply.com). Usually better stock. Often lower prices on rough-in valves and trim kits. Rough-in valves from Delta run about $80-150 here—$20 less than big box for the same part number.
  • Local Wholesale Distributor (Ferguson, Hajoca, Winsupply). You need a trade account. But you get a contractor discount that can be 15-25% off list price. The catch: they don't always have stock, and you might need minimum orders.

I always price out three sources now. One time, Vendor A (a local distributor) quoted me $2,400 for a shower valve package. Vendor B (an online retailer) had the same package for $1,950. The difference? $450. That's a 19% savings for one hour of work. I felt pretty dumb for not checking earlier.

Step 4: Explicitly Ask About Hidden Fees & Non-Included Parts

I used to assume the quoted price was the whole price. I learned the hard way that's not true. After tracking about 40 orders in our procurement system over the last two years, I found that nearly 15% of our "budget overruns" came from unlisted parts and fees.

Your checklist for hidden costs:

  • Does the price include the rough-in valve? Some retailers say "complete system" and mean trim only. Ask.
  • Is the drain assembly included? For a kitchen faucet, this can be a $40-70 item that's not in the box.
  • Are supply lines included? Often not. $10-25 each.
  • Are we forgetting the escutcheon plate? For a 3-hole sink with a single-handle faucet, you need a deck plate. Not always included.
  • Shipping fees. Ground shipping on a heavy shower valve set can be $15-30. Some sites offer free shipping over a threshold. Check.
  • Sales tax. If your supplier is out of state and you're not using a tax-exempt certificate, you need to calculate this.

Take this with a grain of salt, but in my experience, the "total hidden add-ons" for a full bathroom fixture package (shower, tub, two sinks, toilet) runs between $200 and $400. That's not a dealbreaker if you plan for it. Failing to plan for it is.

Step 5: Calculate Total Cost of Ownership (TCO), Not Just Price

Don't judge a faucet only by its price tag. Delta is a good brand, but they have tiers. The more expensive models often have ceramic disc cartridges that last 10+ years. The budget-friendly models might have rubber washers that wear out in 3-5 years.

For a client who owns the property and plans to live there 5+ years, the $150 Delta faucet with a solid warranty might be a better buy than the $90 one from a different brand. Why? Because a $90 faucet that fails in 3 years means a $350 service call to replace it (labor + new faucet). The $150 faucet that works for 10 years has a lower annual cost.

To calculate TCO:

  1. Divide the faucet price by its expected lifespan in years.
  2. Add the cost of one potential repair (cartridge replacement). Delta's cartridges are about $15-40. Labor to swap one: $150-200.
  3. Compare the 10-year cost.

That "cheap" option might be the most expensive one you buy.

Step 6: Factor in the 'Unexpected'—Shipping Damage & Returns

This is the one no one talks about. But I've seen it twice in two years. A $400 shower trim box arrives, and the finish is scratched. Or the ceramic cartridge is cracked (it happens).

What to do: When you place the order, immediately check the supplier's return policy.

  • Free returns (like SupplyHouse) = no cost to you, but it takes 7-10 days.
  • Restocking fee (15-25%) = that $400 damage now costs you $60-100.
  • Discontinued model = you might be stuck with it. Always check the product page for "discontinued" status.

I now order one spare cartridge and one spare supply line for every new faucet model I install. That $40 in parts saves me a $200 trip back to the supply house mid-job.

Step 7: Create a 'Final Check' Before You Click Order

This is my last line of defense. Before you hit "add to cart," go through this mental checklist one more time:

  • Is the rough-in valve on the list? Yes/No.
  • Do we have the trim kit? Yes/No.
  • Are the supply lines and drain in the order? Yes/No.
  • Is the price total >10% over my original estimate? If yes, review all line items. If >20%, stop and call the client.
  • Is there a restocking fee? Yes/No. If yes, what is it?

I'd rather spend 10 minutes reviewing this than deal with a mismatched order that delays the project by a week. An informed contractor asks better questions and makes faster decisions—especially when the budget is tight.

Notes & Common Mistakes to Avoid

On tempered glass vs. shower glass:
People sometimes think a shower door requires "tempered glass." It does. But the cost of a custom tempered glass shower door for a standard 60-inch opening can run $500-1,200 for the glass and hardware. That's before installation. If your renovation budget includes a shower, factor that in. Delta's shower systems are the water delivery side; the glass enclosure is a separate spending line.

On stained glass window film:
If your client wants a stained glass look in a bathroom window for privacy, that's a $15-50 roll of film at a home center. Not a $2,000 custom stained glass window. Cheap fix. Don't confuse the two when estimating.

On home elevators:
Completely unrelated, but a client once asked about a "small home elevator" the same week we were finalizing a bathroom budget. A basic residential elevator runs $20,000-40,000 installed. Way beyond a plumbing fixture budget. If someone asks, just give them the ballpark and move on.

Bottom line: Budget control is 90% planning and 10% execution. Use this checklist, verify your Delta part numbers, and bill out the unexpected costs. You'll sleep better.