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Granite has been used in kitchens for decades, and it’s easy to understand why. It’s durable, naturally beautiful and available in an enormous variety of colours and patterns, with every slab offering its own unique character.

But because granite is a natural stone, one question comes up regularly when homeowners are considering it for their kitchen:

Do granite worktops need sealing?

The answer is that many granite worktops benefit from sealing, but how often—or whether a particular granite requires it at all—depends on the stone itself, its porosity, finish and the sealer used.

It isn’t necessarily something you’ll need to do frequently, and maintaining granite is generally much easier than many homeowners expect.

At Rowe Granite, we supply, template, fabricate and install premium granite and quartz worktops for customers across the UK, including Hull, Yorkshire, London, Manchester, Nottingham and beyond.

Here’s what you need to know about sealing granite worktops and keeping natural stone looking its best.

Why Does Granite Need Sealing?

Granite is a completely natural stone.

Unlike engineered quartz, which has a low-porosity surface created during manufacturing, natural granite can have varying levels of porosity.

This means that some types of granite can absorb small amounts of liquid if they’re left on the surface for long enough.

A suitable impregnating sealer helps reduce the stone’s ability to absorb liquids, providing additional protection against substances commonly found in kitchens, such as:

Rather than creating a thick coating over the top of the granite, an appropriate stone sealer is designed to penetrate the surface and help reduce absorption.

Do All Granite Worktops Need Sealing?

Not necessarily.

This is one of the most important things to understand about granite.

Granite isn’t one uniform material.

Different granites have different mineral compositions, densities and levels of porosity. Some darker, denser granites may absorb very little moisture, while other varieties may be more porous.

The finish of the stone and any previous treatment can also influence its performance.

That’s why it’s better to follow advice for your specific granite rather than assuming every granite worktop needs to be resealed according to the same schedule.

When purchasing granite worktops, ask your supplier what maintenance is recommended for the particular stone you’ve chosen.

How Often Should Granite Worktops Be Sealed?

You may have seen recommendations online suggesting granite should automatically be sealed every year.

In reality, there isn’t a universal timetable that applies to every granite worktop.

Depending on the stone, the product originally used and how heavily the kitchen is used, resealing may be required at different intervals. Some granite surfaces can go for considerable periods before additional treatment is necessary.

Rather than sealing simply because a certain amount of time has passed, it’s better to consider how the surface is actually performing.

How Do You Know If Granite Needs Resealing?

One simple indication is whether the stone appears to be absorbing liquid more readily than it previously did.

For example, if water remains on the surface rather than quickly darkening the stone beneath it, the existing protection may still be performing effectively.

If liquid begins absorbing into the granite and temporarily darkening the surface relatively quickly, it may be worth asking a stone professional whether resealing is appropriate.

This is sometimes referred to as a water test.

However, because different stones behave differently, we’d recommend checking the care guidance for your particular granite rather than relying solely on a generic online test.

What Happens If You Don’t Seal Granite?

If you have a granite that requires sealing and its protection is allowed to deteriorate, the stone may become more susceptible to absorbing liquids.

That can increase the likelihood of staining, particularly from strongly coloured or oily substances.

Cooking oil can be particularly troublesome because oily marks can be more difficult to remove once they’ve penetrated natural stone.

That doesn’t mean an unsealed granite worktop will immediately become stained.

It simply means appropriate sealing can provide an additional layer of protection and give you more time to deal with everyday kitchen spills.

Does Sealing Make Granite Completely Stain-Proof?

No.

This is an important distinction.

Sealing makes granite more stain resistant; it doesn’t make it completely stain-proof.

Even a properly treated granite worktop should still be looked after.

If you spill red wine, oil, coffee or strongly coloured food across your worktop, it’s sensible to wipe it away rather than leaving it overnight.

A quality worktop is an investment, and a few simple everyday habits can help maintain its appearance for years.

Does Granite Sealer Change the Colour of the Worktop?

A suitable impregnating sealer isn’t normally intended to dramatically alter the appearance of polished granite.

However, there are different types of stone treatments available, including products specifically designed to enhance or deepen the appearance of certain natural stones.

This is another reason why it’s important to use a product appropriate for the particular granite and finish rather than applying a generic treatment without checking first.

If you’re unsure, ask a professional before applying anything to the surface.

Can You Seal Granite Worktops Yourself?

There are granite sealing products available for homeowners, and application itself can be relatively straightforward.

However, the important part is choosing a product that’s suitable for your particular stone and following its instructions carefully.

Before applying any product, the worktop should be properly cleaned and allowed to dry.

Avoid assuming that applying more sealer means better protection. Excess product that isn’t properly absorbed or removed can potentially leave residue or affect the finish.

If you’re unsure whether your granite actually requires resealing, speak to your worktop supplier or an experienced stone professional first.

How Should You Clean Granite Worktops?

Day-to-day granite maintenance is relatively straightforward.

For normal cleaning, you generally don’t need aggressive chemicals or abrasive products.

Always follow the care recommendations provided for your particular granite and any sealer that has been applied.

What Cleaning Products Should You Avoid on Granite?

Natural stone deserves appropriate cleaning products.

Depending on the granite and its treatment, harsh or unsuitable chemicals may affect the surface or gradually reduce the effectiveness of the sealer.

Products to be cautious with include:

Natural cleaning remedies aren’t automatically safe either.

Vinegar and lemon juice, for example, are acidic. Just because something is commonly used around the home doesn’t necessarily make it suitable for a natural stone worktop.

When in doubt, use a cleaner specifically recommended for natural stone.

Can You Put Hot Pans on Granite?

Granite itself has excellent resistance to heat, which is one of the material’s advantages in a kitchen.

However, we would still recommend using trivets or heat-resistant mats beneath very hot cookware.

This helps protect not only the stone but also sealers, joins and surrounding areas, while reducing the risk associated with sudden temperature changes.

There’s little downside to using a trivet, and it’s an easy habit that helps protect your worktops.

Can Granite Worktops Scratch?

Granite is a very hard and durable natural material, but that doesn’t mean you should deliberately cut food directly on the surface.

Using chopping boards helps protect your worktop and, importantly, your knives.

It also makes food preparation and cleaning easier.

As with heat protection, simple habits can help keep a premium worktop looking its best for longer.

Is Granite Difficult to Maintain?

This is one of the biggest misconceptions surrounding granite.

The fact that some granite requires sealing can make the material sound high maintenance.

In reality, day-to-day care is usually very simple.

For most homeowners, maintaining granite means cleaning up spills, using suitable cleaning products, using chopping boards and trivets, and occasionally checking whether the stone still has appropriate protection.

Depending on the particular granite and treatment, resealing may only form a small part of its overall lifetime maintenance.

Granite vs Quartz: Which Requires More Maintenance?

If minimum maintenance is your absolute priority, quartz generally has an advantage.

Engineered quartz is non-porous and doesn’t normally require sealing.

Granite, being a natural stone, can require periodic sealing depending on the particular material.

However, granite provides something quartz can’t completely replicate: a genuinely unique piece of natural stone.

Every granite slab has its own mineral deposits, colours, movement and pattern. For many homeowners, that individuality is precisely why they choose it.

Neither material is universally better.

Quartz is an excellent choice if you want consistency and minimal maintenance, while granite is ideal if you value natural variation, individuality and the character of real stone.

Is Granite Still a Good Choice for Kitchen Worktops?

Absolutely.

Granite combines durability, heat resistance and natural beauty in a material capable of becoming a genuine feature within a kitchen.

It can work particularly well for:

And because no two slabs are exactly alike, the worktop installed in your kitchen can have characteristics that are entirely its own.

Choosing Granite Worktops with Rowe Granite

If you’re considering granite for your kitchen, don’t let concerns about sealing put you off.

Many granite worktops are straightforward to maintain, and the requirements will depend on the specific stone you choose.

At Rowe Granite, we can help you understand the characteristics of different granite options and choose a worktop that suits both the appearance of your kitchen and the way you use it.

We supply, template, fabricate and install premium granite and quartz worktops for customers throughout the UK, including Hull, Yorkshire, London, Manchester, Nottingham and beyond.

Whether you’re looking for dramatic dark granite, subtle natural tones or a completely individual statement slab, our experienced team can help you find the right surface for your project.

Thinking about granite worktops for your new kitchen? Get in touch with Rowe Granite to discuss your project and explore the natural stone options available.

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September 25, 2026