Kitchen Island Installation cost at a glance
- Typical range: $3,000 – $6,500
- Most homeowners pay: around $4,800
- Prices vary most by: Island cabinets & body (40–50% of the budget)
Cross-checked against three published sources for this project. Sources used for this page: Angi's kitchen island cost guide, HomeGuide's kitchen island cost guide and Fixr's kitchen island installation cost guide. Sources last checked: October 2026 — HomeGuide, Fixr, Angi. Last updated October 2026 · How we calculate these costs
Cost by scope
| Scope | Typical cost | What it includes |
|---|---|---|
| Prefab or freestanding island | $800 – $2,500 | A ready-made or flat-pack island set in place, usually with no services connected. HomeGuide prices prefab islands at $800–$2,500 against $3,000–$6,000 for a custom build, and Angi's rolling-cart end starts lower still — the honest budget route when you need counter space more than storage or seating. |
| Standard built-in island | $3,000 – $6,500 | The typical project on this page: fixed cabinets, a stone or solid-surface top and outlets. HomeGuide's average range is $3,000–$6,000 with a $4,500 average, Angi's normal range is $900–$6,500 with a $4,800 average, and Fixr's average for a standard 40-by-80-inch island with stock cabinetry and a mid-grade top is $5,000. |
| Custom island with sink, cooking or seating | $6,500 – $10,000+ | Semi-custom or custom cabinetry with water, gas or serious electrical in the island. Fixr averages about $8,000 once a sink, outlets and seating are included and prices cooking islands to $15,000+, HomeGuide's feature table puts a sink at $380–$1,400 plus $450–$1,800 of new plumbing, and Angi puts full custom builds at $10,000 or more. |
Where the money goes
| Part of the job | Share | Note |
|---|---|---|
| Island cabinets & body | 40–50% | The cabinet run is the largest line: HomeGuide prices island cabinets at $500–$1,200 per linear foot in its feature table, with stock at $100–$400, semi-custom at $150–$700 and custom at $500–$1,200 per linear foot installed; Angi's cabinet band runs $100–$1,300 per linear foot |
| Countertop | 20–30% | The top: HomeGuide prices island countertops at $50–$150 per square foot installed, or $1,100–$3,300 for an average island, and Fixr's material table runs from laminate at $8–$20 to quartz at $50–$75 and granite at $70–$140 per square foot |
| Installation labor | 15–25% | Setting, levelling and trimming the island and templating the top: Angi's contractors charge $300–$500 per day plus $150–$250 per additional laborer, and Fixr notes labor climbs steeply on custom cabinetry and tile tops — on fully custom work Fixr counts labor at around half the total once fabrication is included |
| Electrical, outlets & permits | 5–15% | Code-required receptacles and the permit: HomeGuide prices outlets at $150–$350 each and wiring at $7–$10 per linear foot, Angi budgets $165–$535 for island wiring, and HomeGuide puts a kitchen permit at $50–$500+. A sink or cooktop moves plumbing and gas money into this line and the job into the top tier |
What moves the price most
Size sets the frame. Fixr prices an island at roughly $200 per square foot all-in — about $2,000 at 10 square feet, $4,000 at 20 and $8,000 at 40 — and HomeGuide's standard island is 80 by 40 inches. Cabinet grade is the widest spread: HomeGuide runs stock cabinets at $100–$400 per linear foot against $500–$1,200 for custom, so the same footprint can carry a four-figure or a five-figure cabinet line. Services are the cliff: an island with no sink, cooktop or outlets beyond the required receptacles is furniture; add HomeGuide's $450–$1,800 of new plumbing, a $380–$1,400 sink and a range hood at $600–$1,700 and it becomes a small kitchen remodel — Fixr's with-sink-and-seating average is about $8,000. Finally, clearance is a hard constraint, not a style choice: HomeGuide allows 36–42 inches or more of working space on every side, and an island squeezed into a small kitchen is money spent making the room worse.
Worked example: how a typical kitchen island installation budget breaks down
A typical job: a standard built-in island of about 7 by 3 feet — semi-custom cabinets, a quartz top, two code-required GFCI outlets and no plumbing — set, levelled and trimmed in an existing kitchen. The budget below totals $4,800 — the "most homeowners pay around" figure from the top of this page — split using this page's own cost breakdown. It shows how a real quote at that level is usually composed; every line is built from the ranges on this page, and it is an illustration, not a quote for your project.
| Line item | Example budget |
|---|---|
| Island cabinets (semi-custom, about 7 linear ft) | $2,160 |
| Countertop (quartz, about 22 sq ft, templated and fitted) | $1,200 |
| Installation labor (setting, levelling, trim) | $960 |
| Electrical (two GFCI outlets and wiring) and permit | $480 |
| Total | $4,800 |
What most people get wrong
- Pricing the island without the clearance — HomeGuide allows 36–42 inches or more of working space on every side; an island that fits the tape but not the traffic makes the kitchen worse and the money unrecoverable.
- Comparing a furniture quote with a services quote — Fixr averages about $5,000 for a plain standard island and about $8,000 once a sink, outlets and seating are in it; the gap is plumbing and electrical scope, not margin.
- Forgetting the outlets are code, not options — HomeGuide cites the requirement for receptacles on islands over 24 by 12 inches and prices each GFCI outlet at $150–$350 installed; leaving them out of the budget does not leave them out of the job.
- Ordering the top before the cabinets are set — HomeGuide prices an island top at $1,100–$3,300 templated to the finished base; a top cut to the plan instead of the installed cabinets is the classic five-figure-island mistake at standard-island prices.
Costs in your city
Island pricing is cabinet-shop and contractor pricing: Angi's contractors charge $300–$500 per day plus $150–$250 per additional laborer, so the same island costs near the bottom of the band where kitchen contractors are plentiful and well above it in metros where they are booked out. The cabinets and the top are shipped goods at national prices, so quotes in the same city differ on labor, cabinet grade and services — a city of older, smaller kitchens also produces more no-plumbing islands, because the clearance rule (36–42 inches on every side in HomeGuide) rules the big serviced island out. Ask each bidder for the cabinet grade in linear feet, the countertop material and square footage, and whether outlets, permit and any plumbing are inside the number.
Frequently asked questions
How much does a kitchen island cost on average?
The three guides land within a few hundred dollars of each other: Angi's average is $4,800, HomeGuide's is $4,500 inside a $3,000–$6,000 average range, and Fixr's is $5,000 for a standard island with stock cabinetry and a mid-grade countertop. Budget around $4,500–$5,000 for a standard built-in island with no plumbing in it.
How much does a prefab island cost compared with a custom one?
HomeGuide prices prefab islands at $800–$2,500 and custom islands at $3,000–$6,000 on average, up to $10,000. Angi's range starts at $900 for simple installed units, and a rolling cart can cost a few hundred dollars — but prefab units rarely take a sink, cooktop or proper seating overhang.
What does it cost to put a sink in a kitchen island?
HomeGuide prices the sink itself at $380–$1,400, the faucet at $120–$250 and the new plumbing run at $450–$1,800; a dishwasher adds $600–$1,700 and a disposal $200–$500. Fixr, which averages complete islands, puts an island with a sink, outlets and seating at about $8,000 all-in.
How big should a kitchen island be?
HomeGuide's average island is 80 by 40 inches, at least 2 feet deep, 36 inches tall for prep or 42 inches where it is used for dining seating — with at least 36–42 inches of clear floor on every side. Fixr works to 40–48 inches of traffic clearance. If your kitchen cannot give the clearance, a smaller island or a peninsula is the honest answer.
Do I need a permit and outlets for a kitchen island?
Usually, yes on both. HomeGuide notes a custom island typically requires a permit ($50–$500+) while an unattached prefab usually does not, and the electrical code it cites requires at least one receptacle on an island larger than 24 by 12 inches and two or more above 9 square feet — HomeGuide prices each GFCI outlet at $150–$350 installed.
