The honest cost breakdown of your first kitchen reno.

A kitchen renovation, on paper, is eight categories. A few of them — cabinets and labor, mostly — will eat half the budget on their own. A few — plumbing and electrical — will look small until you change the layout, at which point they double. The single most useful thing you can do, before you talk to a contractor, is internalize roughly what percentage of the total each line should take. That way, when a quote shows up, you already know which numbers to push back on.

Here is the breakdown across the three projects we tracked, normalized to percentages. Treat the dollar ranges as honest 2024–2025 numbers for an 80–140 sq ft kitchen in a medium-cost-of-living US market. Adjust up if you live somewhere expensive; adjust down if you live somewhere quiet.

A few things to notice. Cabinets and labor together usually run 40–45% of the project — that is the load-bearing wall of the budget. Appliances are larger than people expect, and easier to defer than people think; you do not need a new fridge to pour a new countertop. Contingency, in our table, looks small at 4%. In reality, every project we tracked used more than they set aside. The math says 4%; the experience says 15–20%. We will come back to that number.

The most useful thing about looking at someone else’s kitchen receipts is how much it changes your sense of what is possible. A real $14,000 kitchen does not look as cheap as the number sounds; a real $48,000 kitchen does not look as luxurious. Here are three first-timer projects from 2024, with the major line items intact. Each was completed within three months of the projected timeline. Each ran over budget — by 6%, 12%, and 28%, respectively.

The Ohio refresh is the project most first-timers should look at first. It is not glamorous — the cabinets are the original 1998 maple, painted in a long weekend with two coats of bonding primer — but it solved everything that was actually broken about the kitchen. The Oregon project is the most common shape: keep the layout, replace the bones. The Hudson project is the one we keep coming back to in conversations with new homeowners, because it shows what happens when you change the layout: the structural engineer, the permit fees, the wet subfloor that nobody could have known about until the cabinets came out. That project’s $5,400 contingency was used on a single Tuesday.

We have never tracked a renovation that did not produce at least three of the following four surprises. Some of them are unavoidable — your house is older than you, and it has secrets. Some of them are budgeting failures dressed up as bad luck. Either way, knowing they are coming is the difference between a stressful month and a derailed one.

The structural surprise.

Half-walls are load-bearing more often than not. The non-load-bearing wall in your kitchen is, in fact, load-bearing in the room above it. The pony wall between the kitchen and the dining room is doing more work than its size suggests. A structural engineer’s report costs about $400–$800; the beam to replace a load-bearing wall costs $2,000–$4,500 installed. If you are even thinking about moving a wall, get the engineer in before you sign with a contractor. Their report will change the quote, but it will change it before you’ve spent any of it.

The code-required upgrade.

The day a permit gets pulled is the day your kitchen has to meet 2024 code, not 1998 code. This usually means three things: an arc-fault circuit breaker on the kitchen circuit ($180–$320 installed), a properly vented range hood ($600–$2,200 depending on the run length), and ground-fault outlets within six feet of every water source ($90–$220 each). None of these are optional. None of these will appear in a quote that hasn’t accounted for permits. Ask, in writing, whether the quote includes code-compliance upgrades. The answer is almost always “we’ll let you know after rough-in,” which is the wrong answer.

The cabinet-sizing math.

Stock cabinets come in 3-inch increments. Your kitchen does not. The gap between what the wall measures and what the cabinets add up to is filled with what the trade calls “filler strips” — and the filler strips, on a galley kitchen, can run to a foot or more of total width, all of which is unusable storage space. Semi-custom cabinets solve this; they cost roughly 60–90% more than stock. We have watched first-timers be quoted stock cabinets and end up with a 7-inch filler strip next to the fridge that nobody warned them about. The conversation to have, before you sign: “Show me where the filler strips will land.”

The scope creep.

Once the cabinets are off the wall, the wall looks awful. Once the floor is exposed, it needs refinishing. Once the lighting is being run, of course you want under-cabinet lighting. Each of these is a defensible choice in isolation. Together, they are how a $26,800 kitchen becomes a $34,000 kitchen. You do not need to resist scope creep entirely — some of it is genuinely the right call. You need to price each addition before you say yes, and you need a number, written down somewhere, beyond which you stop. We use a soft cap (the budget) and a hard cap (the budget plus contingency). Past the hard cap, the conversation stops.

The honest answer is: more than you think, and less than YouTube would suggest. The line we draw, after watching a lot of first-timers, is whether a mistake is reversible. Painting cabinets is reversible — it is, in the worst case, a long Sunday. Running a new electrical circuit is not reversible; the mistake might not show up for years, and when it does, it’s a fire. Here is the rough taxonomy we use.

Worth doing yourself.

Painting cabinets and walls. Replacing cabinet hardware. Installing a peel-and-stick or simple subway-tile backsplash if you’ve watched two long videos and bought the right trowel. Swapping a faucet (the supply lines are flexible and forgiving). Installing under-cabinet puck lights that plug into an existing outlet. Refinishing butcher block counters with mineral oil. Removing old cabinets, carefully, with a friend. The labor savings on these alone, across our three projects, ranged from $1,200 to $3,800.

Worth paying for.

Anything inside the wall. Electrical work that adds a circuit (anything beyond swapping a switch or outlet). Plumbing rough-ins and gas line work. Slab countertop fabrication and install — the templating is technical, the slabs are heavy, and a chip is irreversible. Cabinet install on a new layout, where the levelness of the floor and the squareness of the wall both matter. Hood vent runs through exterior walls. Anything that needs a permit. If a contractor’s quote bundles these into “labor,” ask for them broken out. You’ll learn something either way. (For the deeper version of this decision — the four questions we ask before we hire out a job — see our piece on when to call a pro and when not to.)

A good quote is a document you can argue with. A bad quote is a number on graph paper. Here is what we look for, in order, on every quote that crosses our desk. Print this list. Bring it to the meeting.

1. Line-item categories. Cabinets, counters, appliances, plumbing, electrical, flooring, demo, labor, permits — each with a number, not bundled. If “labor” is one line, push back.
2. Allowance vs. spec. An “allowance” is a placeholder (“$2,000 allowance for tile”) — anything above that is your money. A “spec” is a named product. Convert as many allowances to specs as you can before signing.
3. Permit ownership. Who pulls the permit? Who pays the fee? Who responds to inspector findings? In writing. (The answer should be: contractor, contractor, contractor.)
4. Change-order policy. What is the markup on a change order? What’s the process for approving one? A quote that doesn’t address change orders is a quote that intends to surprise you.
5. Payment schedule. Avoid quotes that ask for more than 25% upfront. The standard pattern: 25% on signing, 25% on demo complete, 25% on cabinets installed, 25% on final walkthrough. Adjust the milestones; the percentages should be roughly even.
6. Timeline with milestones. A quote with no dates is a quote with no accountability. Even rough dates (“rough-in by week 3, cabinets by week 5, final by week 8”) give you something to point to.
7. Warranty terms. One year on labor is standard. Manufacturer warranties on appliances and fixtures pass through to you; ask for the documents.
8. What is explicitly excluded. Drywall repair beyond the kitchen footprint? Painting walls? Final cleaning? An honest contractor lists exclusions. A dishonest one lists them after the work is done.

If you take one number away from this piece, take this one: 15 to 20 percent. Set it aside, in a separate account if you need to, before the project starts. Do not call it your contingency, because you will be tempted to spend a contingency. Call it your repair fund. Call it nothing. Forget about it. The Ohio project used 6% of its budget in surprise costs; the Oregon project used 10%; the Hudson project used 28%. The average across the three was just over 15%, which is the number we keep coming back to in our own homes, on our own projects, for the last six years.

A kitchen renovation is, in the end, a long conversation between you and your house about what it can and cannot be. The numbers in this piece are real, but they are not yours yet. Yours will come from your own walkthrough, your own quote, your own contractor with their own pencil. The work, before any of that, is to know enough that the conversation is a fair one — that when someone hands you a single number on a single line, you can hand it back, kindly, and ask for the rest.

We will be here when you do. Send us your receipts. We are collecting the next round.