Renovation decision guide / 8 min read
What not to do in a kitchen remodel
Two kitchens with the same finishes can go completely differently, and the difference is almost never taste. It is the order the decisions got made in. The mistakes below are the ones that are hard to reverse, and every one of them can be settled before you sign anything.
Short answer
The mistakes that hurt in a kitchen remodel are sequence mistakes, not taste mistakes. Do not order cabinets until the layout is final and the appliances are chosen, because cabinets are built to a drawing and the appliance sets the opening. Do not agree to move the sink or the range until someone has confirmed whether the drain runs in a wall or is cast in the slab. Do not schedule demolition until the long lead item has shipped and the permit is issued. And do not sign a scope that says "relocate plumbing" without a written procedure for what happens if the line is in the concrete.
The mistakes that hurt are sequence mistakes
Nobody blows up a kitchen by picking the wrong tile. The damage comes from a decision made in the wrong order, and by the time the problem surfaces, the room is gutted, the cabinets are cut, and saying no has stopped being an option.
Four rules. Do not order cabinets until the layout is final and the appliances are chosen. Do not move the sink or the range until somebody has confirmed what is in the wall or under the slab. Do not schedule demolition until the long lead item has shipped and the permit is in hand. Do not sign a scope that says “relocate plumbing” without a sentence covering what happens if the drain is cast in the concrete.
If you want the job to stay small, do not move the water
Finishes are the part you can trade up or down at almost any point without pulling in another trade. The layout is not. Moving a sink, a range, or the electrical panel is what turns a kitchen into three licensed trades, a permit, an inspection, and a schedule that depends on somebody else’s calendar. New cabinets and counters in the same openings, with the hood on the existing duct, make a different project from the same kitchen with the sink on the far wall, even though the finished photos look alike. So when a plan needs to get simpler, keep the wet wall and keep the range where the gas and the vent already are. Change the layout before you change the materials.
Do not order cabinets before the layout and the appliances are locked
Cabinets are built to a drawing. Once they are cut, the drawing is your kitchen, and the appliances have to fit what arrives.
So choose the appliances first, by model. The appliance sets the opening. A 36 inch range and a 30 inch range mean different cabinet runs. A counter depth refrigerator and a standard depth one change the aisle. A downdraft, an under cabinet hood, and a chimney hood each need a different upper cabinet and a different duct.
The National Kitchen and Bath Association’s planning guidelines put numbers on the working clearances, and those clearances go first when a layout gets nudged three inches to make a cabinet run come out even. The guidelines recommend a work aisle at least 42 inches wide for one cook and at least 48 inches for multiple cooks. Next to the cleanup sink they call for at least a 24 inch landing area on one side and 18 inches on the other. Next to a cooking surface, at least 12 inches on one side and 15 inches on the other. These numbers are recommendations rather than code, but losing them by accident is how a kitchen ends up annoying to cook in.
| Lock this before cabinets are ordered | Why it cannot wait |
|---|---|
| Range width and fuel | Sets the opening, the gas line or 240 volt circuit, and the hood above it |
| Hood style and duct route | Decides the upper cabinets and whether a duct path exists at all |
| Refrigerator depth and door swing | Changes aisle width and which side the landing area goes on |
| Sink model and mounting | The counter shop fabricates from the actual sink, and the disposal and dishwasher follow it |
Moving a sink: the wall or the slab decides everything
Where the drain runs is the question that separates a small plumbing scope from a large one, and it usually gets answered in a sentence nobody writes down.
Supply lines are small and flexible and can be rerouted through framing almost anywhere. The drain is the constraint. It runs on gravity, so it needs continuous fall the whole way to where it ties into the existing waste line. Every trap also needs a vent behind it, or the trap siphons dry and the room starts to smell like the sewer. Fall and venting turn plumbing into a layout question instead of a hookup question.
Where the existing drain lives decides the job:
- In an interior wall. The workable case, with framing to run in and a path up for the vent.
- In a floor above a crawl space or a lower story. Also workable. Joists cannot be cut wherever it is convenient, but a route exists.
- Cast in the slab. The line sits inside the concrete the house sits on. Moving it means locating it, saw cutting the floor, trenching, re-plumbing, re-pouring, and putting the finished floor back. Different sequence, different inspections. Nobody wants to find that out after demolition.
So ask before you sign: is the kitchen drain in a wall, in the floor structure, or in the slab, and how did you determine that? “We will see when we open it” is an honest answer, and it is exactly the answer that needs a written procedure attached to it. In older parts of Dallas and Fort Worth, a slab opened on a house with its original cast iron waste line sometimes reveals a line in worse shape than anyone knew. Who decides what happens next is covered in why renovation quotes balloon.
An island with a sink or a range is a different animal
Homeowners treat the island as one decision. It is three decisions, and they do not scale the same way.
| What goes in the island | What it pulls in | Settle at the drawing stage |
|---|---|---|
| Countertop and storage only | Receptacles, usually fed from the slab or the space below | Where the feed enters and who confirmed the route |
| A prep or cleanup sink | A drain and vent with no wall available to run them in | How the fixture is vented, and whether the route is slab or floor |
| A cooktop or range | Gas or a large circuit, a hood, and a duct to the outside | Whether a duct path exists from the middle of the room |
The island sink is where people get caught. There is no wall in the middle of a room, so the drain and the vent both have to be solved inside the floor structure or the slab. That is a design decision, not a change order, and it belongs on the drawing before cabinets are ordered.
The island range catches people on the duct. The same planning guidelines call for a correctly sized ducted ventilation system for every cooking surface, with a recommended minimum of 150 cubic feet per minute. A ducted hood has to reach the outside, and from the middle of a room that route goes through a ceiling or a joist bay, or it does not exist. A recirculating hood does not vent outside at all, so the two are not interchangeable. Either way it needs a permit: Flower Mound requires one for the “installation of new exhaust fans.” Settle the route before the island is drawn.
The moment a cosmetic remodel stops being cosmetic
Cities write their permit exemptions around not moving things, which is the same line that separates a small job from a large one.
The City of Dallas lists “Nonstructural interior remodeling of single family or two family dwellings that does not add floor area or change exterior doors or windows” among the work that does not require a permit. The plumbing exemption in the same list is sharper: “Stopping of leaks in pipes, drains or plumbing fixtures if the repair does not require replacement or rearrangement of valves, pipes, or fixtures.” Rearrangement is the trigger word. New cabinets and paint sit inside those exemptions; a relocated drain sits outside them.
Flower Mound draws the line from the other side. Its residential permit guidance states that “Electrical work such as electric panel upgrades, relocation or installation of new outlets or fixtures, or installation of a generator requires a permit,” and that “Installing heating and air conditioning units, relocation or installation of new duct work, or installation of new exhaust fans requires a permit.” A new island hood duct is on that list. So is a moved receptacle. Confirm with your own city, since each one runs its own building department.
Then confirm who holds the licenses, because the trade permit follows the license. The Texas Department of Licensing and Regulation states that “Anyone who performs, or offers to perform, non-exempt electrical work in the state of Texas must be licensed and perform that work through a licensed electrical contractor.” A Dallas remodel checklist adds that permits may only be issued to a registered contractor with the proper licenses. That document has not been revised in years, so confirm the current procedure locally. If the kitchen adds circuits rather than moving existing ones, the panel is its own question, covered in does my electrical panel need upgrading.
Do not start demolition on a promise
The day the room is gutted, you are committed and living without a kitchen. Get written confirmation of four things before that day: that the cabinets are released to production, that the appliance models are in hand or genuinely available, that the countertop template is scheduled after the cabinets are set, and that the permit has been issued. Ask for lead times in writing and make the demolition date depend on them.
One more check belongs before the hammer. The Environmental Protection Agency requires that anyone paid to perform work that disturbs painted surfaces in homes built before 1978 be certified. Demolition disturbs painted surfaces by definition, so if your house is that old, ask for the firm’s certification while it is still a scheduling question.
The questions to settle before anyone signs
- Is the kitchen drain in a wall, in the floor structure, or in the slab, and how did you determine that?
- If we move the sink, what route are you assuming, and what happens in writing if that is wrong?
- Which appliance models is this layout drawn around, and who checks the openings against the cabinet order?
- If there is a hood, where does the duct terminate, and does that route exist today?
- Which trade permits does this need, who pulls each one, and which inspections close it out?
- What are the lead times on cabinets, counters, and appliances, and does the demolition date depend on them?
- Was this house built before 1978, and is the firm doing demolition certified for that work?
A contractor who can answer all seven has drawn this kitchen. One who shrugs at the first has only looked at it.
Sources
- National Kitchen and Bath Association, Kitchen Planning Guidelines with Access Standards. Aisle widths, landing areas, and ventilation recommendations.
- City of Dallas Building Inspection Division, building inspection FAQs. The permit exemptions.
- City of Dallas Building Inspection Division, remodel and renovation checklist. Registered contractors.
- Town of Flower Mound, residential permit guidelines. The permit triggers.
- Texas Department of Licensing and Regulation, electricians program. Electrical licensing.
- Texas State Board of Plumbing Examiners, Always Hire a Licensed Plumber. License cards on a job site.
- U.S. Environmental Protection Agency, Renovation, Repair and Painting Program. Pre-1978 certification.
This guide does not put a number on the work. The decisions above set it.
Sources
- Kitchen Planning Guidelines with Access Standards National Kitchen and Bath Association
- Building Inspection frequently asked questions City of Dallas Building Inspection Division
- One and Two Family Dwellings Remodel/Renovation application checklist City of Dallas Building Inspection Division
- Do I need a permit? Residential permit guidelines Town of Flower Mound, Texas
- Electricians program Texas Department of Licensing and Regulation
- Always Hire a Licensed Plumber consumer sheet Texas State Board of Plumbing Examiners
- Renovation, Repair and Painting Program U.S. Environmental Protection Agency
Common questions
What is the biggest mistake people make in a kitchen remodel?
Ordering cabinets before the layout and the appliances are final. Cabinets are manufactured to a drawing, so once they are cut, the drawing is the kitchen, and every appliance has to fit what arrives instead of the other way around. The part nobody mentions is what happens next. Countertops are templated off cabinets that are already installed, so a cabinet error ends up in a slab of stone that cannot be trimmed to fix it. A 36 inch range and a 30 inch range mean different cabinet runs. A counter depth refrigerator and a standard depth one change the width of the aisle you walk through every day. Pick the appliances by model and get the specification sheets before anyone draws a cabinet.
How do I know whether moving my kitchen sink is a small job or a large one?
It depends on where the existing drain runs, and that single fact decides most of the scope. Supply lines are small and flexible and can be rerouted through framing almost anywhere, so they are rarely the issue. The drain is, because it runs on gravity and needs continuous fall the whole way to where it ties into the existing waste line. Its trap also needs a vent, or the trap siphons dry and the room starts to smell like sewer gas. If the drain is in an interior wall, there is framing to run in and a path up for the vent, which is the workable case. If it sits in a floor above a crawl space or a lower story, somebody has to get underneath and work around joists that cannot be cut wherever it is convenient. If it is cast in a slab, moving it means locating the line, saw cutting the floor, trenching, re-plumbing, re-pouring, and putting the finished floor back, which is a different sequence with different inspections. Ask which of the three you have, then ask the contractor how they determined it, because a guess made from the driveway is not a plan. The Texas State Board of Plumbing Examiners states that licensed or registered plumbers in Texas are required to carry their license cards with them while on a job site, so asking to see one is ordinary rather than rude.
Do I need a permit for a kitchen remodel in Dallas-Fort Worth?
It depends on whether anything moves, and every city runs its own building department, so confirm with yours. The City of Dallas lists "Nonstructural interior remodeling of single family or two family dwellings that does not add floor area or change exterior doors or windows" among the work that does not require a permit, and its plumbing exemption covers "Stopping of leaks in pipes, drains or plumbing fixtures if the repair does not require replacement or rearrangement of valves, pipes, or fixtures." Rearrangement is the word that matters. Flower Mound states the same boundary from the other direction. It requires a permit for "relocation or installation of new outlets or fixtures" and for "relocation or installation of new duct work, or installation of new exhaust fans." So new cabinets and paint generally sit inside the exemption, while a moved drain, a moved receptacle, or a new island hood duct does not. Ask specifically who pulls each trade permit, because the permit follows the license. The Texas Department of Licensing and Regulation states that anyone who performs non-exempt electrical work in Texas must be licensed and perform that work through a licensed electrical contractor, and a Dallas remodel checklist states that permits may only be issued to a registered contractor with the proper licenses. That checklist has not been revised in years, so confirm the current procedure with your city. Unpermitted work usually causes no trouble at all until you sell, and then resolving it becomes your problem.
What does adding a sink or a range to a kitchen island actually involve?
An island with nothing but storage needs receptacles, and the feed usually comes through the slab or the space below, which is a route somebody has to confirm rather than assume. An island with a prep or cleanup sink is a different question. There is no wall in the middle of a room, so both the drain and the vent have to be solved inside the floor structure or the slab. That belongs on the drawing before cabinets are ordered, not in a change order in week three. An island with a cooktop or range adds fuel, a hood, and a duct, and the duct is the part that surprises people. The National Kitchen and Bath Association's planning guidelines recommend a correctly sized ducted ventilation system for every cooking surface with a recommended minimum of 150 cubic feet per minute, and they say the countertop should extend at least 9 inches behind an island cooking surface where the counter is the same height as the appliance. A ducted hood has to reach the outside, and from the middle of a room that route goes through a ceiling or a joist bay, or it does not exist. Required clearances above a cooking surface come from the code edition your city has adopted and from the appliance manufacturer, and North Texas cities do not all adopt on the same schedule. Have the contractor put the clearance and the duct termination in writing instead of taking a number off a web page. Flower Mound requires a permit for the installation of new exhaust fans either way. If a duct route to the outside does not exist from the middle of your room, find that out before the island is drawn, not after the countertop is cut.
How do I keep a kitchen remodel simple?
Keep the water where it is. Finishes can be traded up or down at almost any point without pulling in another trade, but the layout cannot. Moving a sink, a range, or the electrical panel turns a kitchen into three licensed trades, a permit, an inspection, and a schedule that depends on other people's calendars. New cabinets and counters in the same openings, with the hood on the existing duct, make a different project from the same kitchen with the sink on the far wall, even though the finished photos look almost identical. So when a plan needs to get simpler, change the layout before you change the materials, because the materials are the part you can revisit later. Keeping the wet wall also tends to keep the work inside the kind of nonstructural interior remodeling that some cities exempt from a building permit, though your own city decides that and trade work is judged separately. The one thing not worth cutting is the drawing, because a clear layout prevents the surprises.
When should demolition start in a kitchen remodel?
Last, not first. The day the room is gutted, you are committed and living without a kitchen, so the demolition date should hang off confirmed deliveries. Before it happens, get written confirmation of four things: that the cabinets are released to production, that the specific appliance models are in hand or genuinely available, that the countertop template is scheduled after the cabinets are set, and that the permit has been issued. Ask for lead times in writing and make the demolition date depend on them, because a verbal estimate is not a delivery date. One more check belongs before the hammer. The Environmental Protection Agency requires that anyone paid to perform work that disturbs painted surfaces in homes built before 1978 be certified, and demolition disturbs painted surfaces by definition, so if your house is that old, ask for the firm's certification while it is still a scheduling question.
Do I have to choose appliances before ordering cabinets?
Yes, and by model rather than by category. The appliance sets the cabinet opening, the fuel or circuit behind it, and in the case of a range or cooktop the hood and duct above it, so a cabinet order placed first is a guess dressed up as progress. The National Kitchen and Bath Association's planning guidelines put working numbers around each appliance, including at least 12 inches of landing area on one side of a cooking surface and 15 inches on the other, and at least 15 inches of landing area on the handle side of a refrigerator. Those are the clearances that disappear when a layout gets nudged a few inches to make a cabinet run come out even. One detail that rarely gets volunteered is that the same guidelines note the clearance for an over the range microwave is set by the manufacturer, so the specification sheet for the exact model is the authority, not a rule of thumb. Get the spec sheets, hand them to whoever draws the cabinets, and keep a copy yourself.
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