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The UK’s Best Patio Sealer for Stone Flags & Concrete Slabs

Hi and welcome to our review of the best patio sealer for UK garden paving.

When you’ve finally finished your garden, it can be a great feeling – but the last thing you want is for it to start looking run down and shabby. The best way to protect your patio from this happening?

Investing in a good sealant!

Lots of people are unsure whether they should seal a patio, we cover this here.

If you check out our site, you will see we are garden paving and landscaping contractors and laying, maintaining and restoring patio’s is our game. After 30 years, I wish I could change my career, but sadly it’s not going to happen now!

A top quality patio sealer can help prolong the life of your paving and offer several benefits – we’ll take a look at some of these below, as well as the best patio sealants for different paving.

Our Best Patio Sealer Choices

Let’s dive in.

The 6 Best Patio Sealers Reviewed

Since you love your patio and want it to last for years, we’ve compiled a list of the best sealers on the market

We’ll cover their pros and cons so you can find one that suits your needs perfectly

After reading this article, you’ll know which one is right for you!

#1. Best All-Round Patio Sealer – Everbuild 405 Path And Patio Seal Paving Sealer – 25 Litre

This Everbuild patio sealer is not, in our opinion the best patio sealer on the market, but it’s probably the best for you. Most UK homes don’t have highly expensive natural paving stones that cost £40 per metre and above. I am talking things like Yorkstone and Indian Sandstone if you do then keep reading.

Most homes have regular domestic flags, installed by the developers, man-made paving flags or block paving. In that case, this paving sealer is the best value for money.

Best All-Round
Everbuild 405 Path and Patio Seal Paving Sealerr

When comparing the desired results, one wants (reduce weed growth, stain prevention and sand stabilising) with coverage (how far the paving sealer will go) and how much money you want to spend, then we think this sealer will be an excellent buy for over 80% of the UK’s patios.

Twenty-five litres at this price is not to be complained at. Everbuild is a great brand and has several multi best sellers in the DIY market. Their sealers for pavers are easy to use, and they make sure their instructions are simple to follow.

#2. Best Block Paving Sealer – Smartseal MATT Finish – Durable Sand Hardener & Weed Inhibitor

This 25-litre block paving sealer is superb for several different things which include helping enhance the natural colours of the patio and keeping weeds at bay. A two-coat process is recommended for best results with the first coat saturating the sand, this will allow the sand rock to solidify and the block to seal.

Best Block Paving Sealer
Smartseal Block Paving Sealer

Customers have raved continuously about its long-lasting nature and the ability to leave your paving stones looking damp whilst bringing out the original colours. Although it is slightly expensive, its high litre capacity means you only usually need 1-2 tubs of it for a full patio.

#3. Top Solvent Free Sealer – Everbuild 402 High-Performance Water Seal – Long Lasting Protection From Water Damage, 5 Litre

This high performing and long-lasting water repellent use the latest technology to protect against any damage caused by mould and weather. This is done through the silicone resin and water seal. One of its main advantages from other competitors is that the water seal takes less than 1 hour to dry.

Top Solvent
Everbuild 402

It’s available to use on a wide range of substrates including pebbledash, rendering, brick, stone and concrete. It also dries clear meaning there will be no mark or distorted colour left on your substrate after use. It deeply penetrates the surface to provide long-lasting, effective water repelling finish.

#4. Best Wet Look Natural Stone Sealer – Resiblock Natural Stone Sealer Colour Enhancer, 5lt.

I’ve been to the Resiblock HQ in Basildon, completed their approved contractor’s scheme and worked them for many years in the past. I can personally say there are a great company and fanatical about paving sealers.

Best Wet Look
Resiblock Natural Stone Sealer

We choose them after extensive experience in trying to get a solid wet look finish on multiple natural stone project we had completed. When these guys aren’t selling patio sealers, they are sealing airports no less around the world.

We found their natural stone paving sealer to be the best, it’s expensive per litre but then so is the natural stone you have. I wouldn’t be taking chances. I’d use Resiblock on all-natural surfaces, or I wouldn’t seal them.

#5. Best Matt Patio Sealer – Everbuild 405 Path & Patio Seal, 25 Litre – Clear-Drying, High-Performance Water Seal

The Nassboard path & patio sealer provides a high-quality protection service to your patio whilst drying clear and leaving you without harmful odours. It has been formulated to protect paths, natural stone, concrete and brick from the effects of sunlight, oil, moss, water and petrol. This has been achieved by using a solvent-free acrylic coating so you can relax knowing your outdoor space is protected.

Best Matt
405 Path & Patio Seal

Additional benefits to the water seal include allowing for your patio to be that much easier to clean. The paving sealer acts as a dust proofer, and with its fungicide, you no longer have to worry about unwanted fungus growth either. You can purchase it in either a 5 litre or 25-litre container with two application rollers included for the larger size and one for the smaller size.

#6. Recommended Imprinted Concrete Sealer – Smartseal Silk/Wet Look Finish – High Quality (5 Litre)

An easy to apply paving sealer that gives imprinted concrete fantastic long term protection from the elements. It protects against colour loss and surface wear whilst also not blistering or peeling either. Over time the concrete hardens and seals properly providing a complete and highly durable layer of protection for your driveways or patios.

Smartseal Imprinted Concrete Sealer

It is advised that application is done through a sealing broom and that the first layer is brushed correctly into the surface whilst avoiding pooling.

For a full surface area, we would advise purchasing the 25-litre container to get the job done in one go hopefully, but all depends on the size of the patio. Once applied and dried it will give the area a glossy look whilst allowing the natural colours of the stones and slabs to seep through.

Firstly When to Seal a Patio?

You may take one look at this section heading and think, yeah I’ll skip this and get to the most critical parts. That would be a HUGE mistake.

a garden with grass, patio and steps
Wet Look Patio Sealer

When to seal a patio and more importantly, when you can’t. The timing is a pretty important step in this whole process.

So here’s the deal,

All new paving, including patio paving, must be left to weather for at least eight weeks. 
Yes, once laid leave it alone entirely for the first two months, three months is even better.
We do this for two reasons,

1.) Any problems that are going to occur with your new patio are highly likely going to happen or be noticeable within the first few weeks.

Problems that you may have never considered:

  • Concrete or cement staining
  • Rocking flagstones
  • Loose jointing compound
  • Broken/cracked flags
  • Stubborn ingrained dirt
  • Drainage issues
  • Sinking / 1 or stones dipping
  • Unseen spillage

At first glance, you may think your new patio has none of these issues, but a flag that is newly laid, may not be rocking today but may start moving when trafficked.

2.) Efflorescence

What the hell is efflorescence I hear you shout!

The best efflorescence removers are reviewed here and a rundown on how to remove, but in a nutshell white patchy marks brought about by natural salts releasing from the stones themselves.

All perfectly normal, and in the vast majority of garden patio installations, they will come and go without any treatments within the first six weeks.

The technical description

Efflorescence is the powdery marking of salts that will often appear on the faces of concrete blocks and natural stone surfaces. It often occurs when rainwater or hosing leaves behind salt deposits on the surface of the stones.

So as you will see be the who patio sealing points made above, if you dive right in you could be sealing in a lot of issues. Most of which you will be stuck with.

Is Patio Sealer Any Good?

This is one of the first questions we asked when the topic of sealing patios comes around. It’s fair to question because let’s be honest the patio sealer market has a crap reputation.

pcs-a pcs-b

Customers ideally would like a patio sealer that will always:

  • Look great
  • Enhance the colours
  • Seal and protect the stones
  • Easy to wipe down
  • And will last forever

As that Meerkat off the TV would say.. Simples!

If only it were as easy as that, so here is the reality. There are different types of patio sealers, and they are in different price brackets, based on performance and what you’re hoping to achieve.

There are also different kinds of patio sealer based on the types of stones you have laid. And this is critically important. You go putting a cheap block paving sealer on a porcelain patio stone; you’re going to have BIG problems.

Types of sealers on the market today

  • Driveway Sealer – Explicitly designed for drives and will be primarily a sand stabiliser to combat weed growth in the joints and help with sinking and movement. Standing cars can have a lot of movement, and while you want flexibility, you don’t want empty joints.
  • Block Paving Sealer – These will have all of the elements of above in most cases as block paving is the most popular UK driveway product. But these products lend themselves to colour enhancers also which is why you will have heard the phrases “Matt Finish” and “Wet Look Finish.”
  • Indian Sandstone Sealer – This is one of our most read natural stone sealing guides. Check it out.
  • Porcelain Paving Sealer – Again head over to a full guide to see the reviews.
  • Imprinted Concrete Sealer – Patterned imprinted concrete is different from most selections on this page as this is the only hard landscaping that doesn’t have joints. Nevertheless, imprinted concrete can benefit significantly from sealing and resealing as it relies on the sealer to protect and preserve the colours.
  • Solvent-Free Patio Sealer – A lot of sealants are now solvent-free or sometimes known Eco-friendly sealants. These are predominantly water-based sealers and have no fumes or smell due to the solvent-free formulation. If you want to read more about the solvent-based sealers then it’s here.

What To Watch For When DIY Sealing

It Must Be Easy To Apply

The product could be the best paving sealant on the planet, long-lasting, destroy weeds and gives impressive enhancements to the paving colours. But, if it’s not easy to use, you won’t ever get to see the benefits.

a pressure washer cleaning a pathway between grass

Some patio sealers are not that easy to apply, and some have been missed from this list entirely for this reason. A good patio sealer will, in our opinion be a DIY product.

Yes, some paving sealers need to be super high end. When trying to stabilise sand using paving sealer at an airport or shopping centre then you want a superior product. And with excellent products comes a more complicated application process. But most UK patios are relatively small and easy to use and easy to apply must be at the top of your criteria when choosing the best patio sealer.

One Coat Or Two Coats?

Seems simple right, apply one coat and if you like it then apply a second coat? That would be wrong.

Different paving seal products have different application processes. Some are simple once coat applications, others need a second coat to create a wet look and so one.

For all sealing products, be sure to read the instructions, as how many coats will determine how much coverage you need as everything may well be doubled.

Do You Want Colour Enhancement? (Test It)

It would be best if you thought about this, some customers in the past have been very excited about having a permanent wet look patio, only to find once complete they preferred a natural look. The solution here is to do a test patch.

Using a leftover stone, or a section of the patio that is out of sight (behind a shed, or under the bins) test the paving sealer here. Please leave it to dry for a day or so and then compare the stones that have a wet look versus the rest that has a matt finish. Which you prefer will be obvious.

an indian sandstone patio with a skateboard on it
Patio sealer can change the appearance.

Will The Best Patio Protection Work Against Spills & Grime?

All of the recommendations above will go along way to reducing maintenance and giving you a cleaner, brighter patio. The best patio sealers minimise the amount of cleaning required and keep any spillages and stains from impregnating the face of the stone. In theory, the best patio sealants offer excellent resistance and appearance protection.

No block paving sealer or sealer for patio stones 100% can guarantee to protect the stones, but the best sealers offer durability and make a difference against everyday use.

Can You Pressure Wash A Sealed Patio?

Most landscaping professionals like us do not advise pressure washing a sealed patio. The reason being is that even if the area is sealed with the best paving sealer money can buy, some like Resiblock Superior, By jet washing you run the risk of removing the sand, or jointing compound.

Related: Resiblock Review – Is This The Best Sealant To Buy

Can We Not Just Replace The Lost Sand Or Compound?

Yes, you can, but then you will need to reapply the sealer to that area, and then you run into issues with patchiness. You don’t want to buy the best patio sealer and end up with it being patch because you pressure washed it.

Instead, use a firm brush or broom and a hose pipe with low pressure to remove stains.