Undermount vs Topmount Sinks - Which Should You Choose?
Not sure whether an undermount sink or top mount sink suits your kitchen? This guide explains how each sink type works, what to consider for your benchtop, and how to balance functionality, budget, and design.
- A top mount, sometimes called a drop-in or overmount sink, has a visible rim that rests on top of the counter.
- An undermount sink sits underneath the benchtop, giving you a flush, seamless look.
Both work well in Australian kitchens. The right choice depends on your benchtop material, how you use your sink day-to-day (personal preference) and the overall aesthetic appeal want to achieve.
Top Mount vs Undermount Sink: Quick Comparison
| Feature | Top Mount Sink | Undermount Sink |
|---|---|---|
| Installation | Easy, DIY-friendly | Professional installation required |
| Cost | More affordable | Higher installation cost |
| Benchtop compatibility | All materials, including laminate | Stone or solid surfaces only |
| Cleaning | Easier to access rim | Needs care around silicone seal |
| Look | Classic and practical | Seamless and modern |
| Durability | Protects benchtop edges | Relies on proper installation |
TLDR: Which Sink Should You Choose?
If you’re torn between an undermount sink and a top mount sink, here’s the quick breakdown.
- Choose a top mount sink if you want something practical, cost-effective, and easy to install. It’s a great match for laminate or timber benchtops and perfect if you’re doing a DIY kitchen renovation.
- Choose an undermount sink if you want a seamless, modern look that shows off your benchtop. It’s ideal for stone or solid surface countertops and adds that premium touch to your kitchen design.
What is a Top Mount Sink?
A top mount sink rests on top of the benchtop with its rim visible. It’s sealed with silicone or caulk and supported by the countertop itself, which makes it simple to install and replace later. Top mount sinks are the go-to for easy, budget-friendly renovations or DIY projects. You’ll find a full range of styles in Buildmat’s topmount kitchen sinks collection, including handmade stainless steel designs.Why People Choose Top Mount Sinks
- Easy to install. You can usually install a top mount sink yourself with a jigsaw and sealant. There’s no need for professional cutting or stonework.
- Affordable. Because they’re simple to fit, they’re a cost-effective option for most kitchen renovations.
- Protects benchtop edges. The rim of the sink guards the stone or solid surface beneath from knocks and chips over time.
- Easy to clean and maintain. You can see and reach every edge, making it easier to wipe away grime or gunk before it builds up.
- Simple to replace later. If you ever want to swap your sink for a different shape or size, a top mount design is easier to remove and replace.
What to Watch Out For
Pressed stainless steel sinks are often cheaper but thinner and louder than handmade stainless steel models. If you want something that lasts, look for premium designs in Buildmat’s stainless steel kitchen sinks collection. These are thicker, quieter, and built for heavy daily use.
Shop Topmount Sinks
Handmade stainless steel topmount kitchen sinks.
What is an Undermount Sink?
An undermount sink is installed underneath the benchtop. The sink lip sits below the counter, creating a seamless transition from benchtop to bowl. This clean finish is popular in modern kitchen designs where you want the focus on the benchtop. Buildmat’s undermount kitchen sinks range includes handcrafted stainless steel sinks that combine strength, functionality, and design-led style.Why People Choose Undermount Sinks
- Seamless look. The benchtop flows straight into the sink, creating a sleek, modern feel that suits stone or solid surfaces.
- More counter space. Without the rim on top, you gain a few extra centimetres of usable benchtop area.
- Easy to wipe down. You can sweep crumbs and water straight into the sink without catching on the rim.
- Premium finish. Undermounts are usually found in high-end kitchens and can increase your home’s resale value.
What to Watch Out For
Undermount sinks take more planning and are best installed by professionals. Your cabinet maker both need the exact measurements before cutting the benchtop. The sink also needs a strong base to support its weight underneath. If your benchtop is laminate or timber, an undermount isn’t recommended. These materials can swell or warp when exposed to water. For these surfaces, a top mount sink will perform better over time.
Shop Undermount Sinks
First-class stainless steel undermount kitchen sinks.
Which Sink is Easier to Install and Maintain?
Top mount sinks are easier to install, cheaper, and more forgiving if your benchtop cut-out isn’t perfect. They’re ideal for quick kitchen makeovers and DIY renovators.Undermount sinks, on the other hand, require precision. The cut-out needs to be smooth and exact to sit flush with the benchtop. Over time, you’ll need to check the silicone seal around the rim for moisture or grime buildup. Resealing occasionally keeps it watertight and looking sharp.
Choosing the Right Kitchen Sink for Your Benchtop
Your benchtop material plays a big role in which sink will work best.- Laminate and timber benchtops: Stick with a top mount sink to avoid water damage around exposed edges.
- Stone and solid surfaces: Undermount sinks give a beautiful, seamless finish that highlights your benchtop material.
Style and Finishes That Match Your Kitchen
Once you’ve chosen your sink type, think about how it fits with your tapware and accessories. For a consistent look, match the finish of your sink to your tap and hardware.You can browse Buildmat’s full range of kitchen mixers and kitchen accessories to finish your design and keep everything coordinated.
Shop the Range
No matter which style you choose, you’ll find high-quality sinks built for everyday use at Buildmat. Explore:- Stainless steel kitchen sinks – durable, stylish, and easy to maintain
- Undermount sinks – for seamless, modern kitchen designs
- Top mount sinks – perfect for quick installations and laminate benchtops
- Kitchen mixers – complete your setup with matching tapware
- Kitchen accessories – from chopping boards to sink protectors
Frequently Asked Questions
Are undermount sinks harder to clean?
They’re easy to clean once you get used to them. You just need to keep an eye on the seam where the benchtop meets the sink and reseal it occasionally to stop grime from building up.
Can I install an undermount sink on a laminate benchtop?
No. Laminate and timber benchtops aren’t suitable for undermount sinks because water can seep into the edges. A top mount sink is a safer choice.
Which sink style looks more modern?
Undermount sinks create a seamless, designer look that’s popular in modern kitchen design. Top mount sinks are more traditional but still look stylish with the right tapware and finish.
Do undermount sinks cost more?
Yes. They need precise installation and support, so they’re typically more expensive than top mount sinks. The result, however, is a more high-end finish.
What’s the best finish for kitchen tapware?
It depends on your kitchen’s style. Brushed nickel, brass, and matte black tapware are popular finishes that pair beautifully with stainless steel sinks. You can see them all in Buildmat’s browse by colours collection.
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