How Much Does a Kitchen Island Cost in a Remodel?

If you’re remodeling your kitchen in Oakville, Mississauga, or anywhere across Halton and Peel, one of the most common questions I get is: “How much does a kitchen island actually cost?” The short answer? Anywhere from $2,000 to $25,000+. The real answer depends on what you’re building, what’s underneath your floor, and whether you’re adding plumbing, electrical, or premium finishes.

I’ve installed dozens of islands, from simple stock-cabinet setups to full custom builds with sinks, dishwashers, and waterfall quartz. In this post, I’ll break down realistic pricing tiers, share real project examples, and give you my blunt advice on where to spend (and where to save) so you don’t blow your budget on surprises.

Realistic Kitchen Island Price Tiers in Ontario

The word “island” means different things to different people. To a big-box store, it might be a movable cart. To a custom cabinet shop, it’s a furniture-grade centerpiece with integrated appliances. Here’s how I break it down for homeowners in Oakville:

Basic / Prefab or Stock Island: $2,000–$5,000

This is your entry-level option, usually 4–6 feet long, 2–3 feet deep, built with stock or semi-stock base cabinets. Think laminate or entry-level quartz countertop, 2–4 drawers or doors, no sink, minimal electrical, and possibly a small seating overhang.

Installation is straightforward: assemble, anchor to floor, add trim, coordinate countertop. If you buy the cabinets yourself and hire a handyman for assembly and finishing, you can land near the lower end. Fully supplied and installed by a pro? Expect to pay closer to $3,500–$5,000.

Mid-Range Custom-Built: $5,000–$10,000

This is the sweet spot for most Oakville homeowners who want an island that looks like it belongs, not something tacked on. Typically 6–8 feet long by 3–4 feet deep, with features like:

• Semi-custom or custom cabinet boxes

• Better-quality quartz countertop

• Soft-close drawers and deeper storage

• Seating for 2–4 people

• Decorative end panels and trim

• Electrical outlets (maybe even a microwave or beverage cabinet)

• More substantial countertop overhang

Once you move into true custom cabinetry, especially with furniture-grade finishes, prices can climb quickly. But for a well-built, functional island without plumbing or luxury materials, $5,000–$10,000 is a realistic target.

High-End / Designer / Luxury: $10,000–$25,000+

Here, the definition of “island” changes completely. We’re talking 8–10+ feet long, 4–5 feet deep, with substantial seating and furniture-style cabinetry. Features often include:

• Full custom cabinetry (rift-cut white oak, walnut, inset doors)

• Waterfall quartz or natural stone countertop

• Prep sink, dishwasher, dedicated electrical circuits

• Pop-up outlets, under-cabinet lighting, wine/beverage fridge

• Custom millwork details and designer hardware

In higher-end Oakville homes, I’ve seen bespoke islands reach $15,000–$25,000+, especially when plumbing, electrical, and premium stone are involved. Don’t let anyone tell you an 8-foot island costs less than a 6-footer — if the 6-footer has a sink, dishwasher, and waterfall edge, it’ll cost more.

Two Real Projects: What Homeowners Actually Paid

Theory is fine. Reality is better. Here are two actual island projects I’ve worked on in Oakville and Mississauga, anonymized, but accurate down to the dollar range.

Case Study 1: Oakville Family Kitchen — More Prep Space + Seating

What they wanted: Replace a small, awkward peninsula with a proper island. Goals: more countertop space, additional storage, seating for three without making the kitchen feel cramped.

What we built: Approximately 7 feet long by 3.5 feet deep. Painted shaker-style cabinetry with soft-close drawers, quartz countertop, 12-inch seating overhang, and electrical outlets for small appliances.

Final cost: $7,000–$8,000, including cabinetry, countertop, installation, and handyman work.

Surprise: Once we removed the old peninsula, the flooring underneath didn’t extend properly into the new island area. We had to repair and extend the floor before anchoring the cabinets, adding both cost and time.

Lesson: Never assume removing an existing cabinet leaves you with a ready-to-use floor. Always check what’s underneath before finalizing your island budget.

Case Study 2: Mississauga Kitchen — Larger Island with Sink + Electrical

What they wanted: Make the island the real work centre of the kitchen. Approximately 8 feet by 4 feet, with seating for 3–4, substantial drawer storage, quartz countertop, electrical outlets, and a small prep sink. Also included space for a microwave and additional cabinetry.

Final cost: $11,000–$13,000, depending on how cabinetry, countertop, electrical, and plumbing were allocated.

Biggest issue: Not the cabinets, it was the plumbing and electrical. Once you put a sink and appliances into an island, you’re no longer dealing with a simple cabinet installation. We had to coordinate plumbing location, electrical requirements, and countertop cutouts before anything could be finalized.

There was also a small scheduling delay because the countertop couldn’t be templated until the cabinetry was completely installed and leveled.

Lesson: An island with a sink or appliances needs to be planned from the floor up. Don’t order the countertop first and then try to figure out plumbing and electrical afterward.

My Hot Takes: What Most Blogs Get Wrong About Island Pricing

I’ve read countless articles on kitchen island costs. Most miss the mark because they treat islands like furniture, not renovations. Here are my two blunt truths:

The Island Itself Is Rarely the Expensive Part

A lot of online pricing makes it sound like you can pick an island based on its size and get a reasonably accurate price. In real projects, the surrounding work can be what blows up the budget.

A $4,000 island can quickly become a $7,000–$9,000 project if you discover that:

• The flooring doesn’t extend underneath it

• Electrical needs to be relocated

• The existing floor isn’t level

• Plumbing has to be moved

My rule: Before anyone gives you a firm island price, look at the floor, electrical, and plumbing, not just the cabinets. That’s particularly important when removing an old peninsula or changing the island footprint.

Homeowners Overspend on Countertop, Underspend on Layout

This is probably my bigger hot take. I would rather see a homeowner spend $1,000 more on better cabinet layout and usable storage than spend $1,000 upgrading from a good quartz countertop to an expensive designer stone.

You’re going to open those drawers and use that storage every day. If the island has poorly positioned drawers, inadequate clearance, awkward seating, or nowhere convenient for appliances, a beautiful $5,000 countertop isn’t going to fix the problem.

Design the island around how you work in the kitchen first. Then choose the countertop. And don’t make the island as large as physically possible just because you can. Good clearance around the island is often worth more than another 12 inches of countertop.

My one-sentence takeaway: “Don’t price a kitchen island as a piece of furniture. Price it as a small renovation, and spend your money on function before fancy finishes.”

Smart Ways to Save Without Regretting It Later

If you’re working with a tight budget, say, under $6,000–$8,000, here are two compromises I genuinely recommend. They save money without making the island feel cheap.

Use Stock Cabinets, Spend on Countertop and Layout

If the budget is under $6,000–$8,000, I wouldn’t automatically recommend fully custom cabinetry. A good-quality stock or semi-custom cabinet system can give you the storage you need for considerably less money.

Put the savings toward the things you interact with every day:

• A good quartz countertop

• Better drawer configuration

• Proper seating overhang

• Strategically placed outlets

For example, instead of spending several thousand extra on furniture-grade custom cabinetry, use standard 24-inch-deep cabinets and customize the end panels, trim, and countertop. Visually, you can still get a very polished result.

The key is not making the island overly complicated. A straightforward 6–7 foot island with drawers, doors, outlets, and a quality countertop can look far more expensive than it actually is.

Skip the Sink (Unless You Truly Need It)

This is probably my favourite budget compromise. If an Oakville homeowner has an $8,000 ceiling, I’d seriously ask whether they actually need a sink in the island. Adding a sink isn’t just the cost of the sink, it can mean:

• Plumbing changes

• Drainage adjustments

• Shutoffs

• Countertop cutouts

• Additional labour

If the sink isn’t essential, I’d rather spend that money on better storage, electrical outlets, and a useful microwave/appliance shelf. You can also design the island so that plumbing could theoretically be addressed in a future renovation, but I wouldn’t recommend deliberately installing a temporary or incomplete system just to save money today.

My $6K–$8K formula: 6–7 ft island + stock/semi-custom cabinets + good quartz + drawers/storage + electrical outlets + seating for 2–3 + no sink. Keep the existing floor and electrical layout wherever practical. Every time you avoid moving plumbing, electrical, or flooring, you give yourself more money to spend on the parts you’ll actually see and use.

The Biggest Budgeting Mistake I See (And How to Avoid It)

The biggest mistake homeowners make when budgeting for a kitchen island? Treating it like a piece of cabinetry instead of a small renovation.

Homeowners will often say, “I found a 6-foot island for $2,500, so I have a $3,000 island budget.” Then the quote starts growing: installation, countertop fabrication, electrical outlets, floor repairs, trim, delivery, demolition, and disposal. If the island includes a sink or appliance, plumbing and electrical can add another layer entirely.

The other mistake is spending too much of the budget on the countertop while underbudgeting the supporting work. A beautiful quartz or stone top doesn’t help if:

• The floor underneath isn’t suitable

• The electrical isn’t where it needs to be

• The island layout leaves inadequate clearance

Before ordering anything, ask yourself:

• What happens to the existing floor?

• Does the island need electrical?

• Is plumbing involved?

• Who is installing and leveling the cabinets?

• What countertop material and edge treatment are being used?

• Are there delivery, demolition, or disposal costs?

• Is there enough room for proper walkways and seating?

I’d rather see someone budget $7,000 for a simple island and finish at $6,500 than start with a $4,000 target and discover they’re actually looking at a $7,000 project halfway through.

My blunt warning: The cabinet price is not the island price. If you’re removing, modifying, wiring, plumbing, flooring, or finishing anything around that island, you’re renovating , not simply buying a piece of furniture.

Final Advice: Start With Function, Then Add Finishes

If you take nothing else from this post, remember this: Design your island around how you actually use your kitchen. Then choose materials and finishes that fit your budget, not the other way around.

Whether you’re in Oakville, Mississauga, Burlington, or anywhere else in Southern Ontario, the principles are the same. Know your tiers. Plan for hidden costs. Prioritize function over flash. And always, always check what’s underneath before you commit.

Need help figuring out what your island project will really cost? Reach out , I’ll walk you through your options, your layout, and your budget without the fluff.