How Much Does Flagstone Patio Cost to Install?

If you’re considering adding a flagstone patio to your home, you’re likely wondering just how much it will cost. It’s difficult to answer this question because a variety of factors influence the price. In this blog post, we’ll take a closer look at what goes into the costs of a flagstone patio and provide some ballpark figures to help give you an idea of what to expect.

Keep in mind that these numbers are just estimates and should not be taken as gospel. With that said, let’s get started.

FAQs For Flagstone Patio

Is flagstone good for a patio?

Flagstone is one of the best materials for patios, primarily due to its narrow, packed joints that allow water to permeate instead of running off. Flagstone patios also have a very natural, organic look due to their shape and earthy shades of browns, reds.

What do you put under a flagstone patio?

For a lasting installation, a dry-set stone patio does need a foundation, though. It’s best to start with several inches of compacted gravel, followed by a layer of stone dust, also called decomposed granite, or DG.

Which is better flagstone or pavers?

Both flagstone and pavers are popular choices for hardscape design, each with specific benefits. Flagstone is a natural stone frequently used for walkways by people who want a natural or rustic hardscape look.

How long will flagstone last?

How Long Will A Flagstone Patio Last? Both materials, flagstone, and pavers, are remarkably durable, lasting up to 10 years under normal conditions. However, for flagstones to last this long, its depth must be suitable for the location where you’re installing them.

Can you put flagstone on concrete?

Flagstone is a unique paving surface that adds a natural look to any patio or walkway. It can be laid on a dry bed of sand and gravel, or it can be mortared to an existing concrete slab.

Flagstone Patios Cost By Square Footage

One of the biggest factors that will influence the cost to install a flagstone patio is where you live. Companies need to source these stones from where they form naturally, so the further away you are from that location, the more you’re likely to pay. That’s why states such as Florida will have a lower cost for limestone than New York and other countries.

The cost to install a flagstone patio fluctuates between $25 to $40 per square foot, depending on the time of year you buy materials and where you live. The bigger the patio, the more you’re going to pay. So, if you want a flagstone patio that is 300 square feet, then you’re looking at paying $5,500 to $10,000.

Here are the average costs for a 200-square-foot flagstone patio:

City	Cost
Hartford, CT	$4,800
Richmond, VA	$4,000
Columbus, OH	$4,600
Albuquerque, NM	$4,400
Orlando, FL	$4,100
Bozeman, MT	$4,302
Milwaukee	$4,556
New York	$4,245
Los Angeles	$4,930

Flagstone Patio Cost Factors

The total cost to install a flagstone patio comes from the materials, labor, and whether you need a permit.

Type of Flagstone

The type of flagstone you choose will have a big impact on the cost. Some types of flagstone, such as bluestone, are more expensive than others.

Cost of Materials

There are around five main types of flagstone available, each with benefits and downsides.

The five main types of flagstone are:

Quartzite: Holds up against stains and weathering well, but costs more and is harder to install.
Bluestone: Dense and durable, but the color fades easily.
Limestone: Water-resistant and durable, but vulnerable to corrosion from acid and chemicals.
Sandstone: Keeps the stones cool but absorbs water, which may damage it.
Slate: Easiest to mold, but easiest to break apart.

After you’ve picked out the type of flagstone you want, choose the color that goes hand-in-hand with your house.

Size and Complexity

Patios cost more if they are larger and more complicated. If you’re working with a professional installer, they will typically charge by the square foot to account for this.

Cost of Labor

The cost of labor will depend on the contractor you hire. Keep in mind that certain contractors may have higher costs, but they may offer cheaper costs for materials. Include both of these numbers when picking between contractors, and get a quote from at least three pros before signing a contract.

Local Costs

The cost of living in your area will also affect the cost of your flagstone patio. In general, flagstone patios will be more expensive in areas with a high cost of living, such as the Northeast or West Coast.

Possible Permits

The cost of living in your area will also affect the price of your flagstone patio. In general, flagstone patios will be more expensive in areas with a high cost of living, such as the Northeast or West Coast.

A permit may be required if you plan to add on to your house in certain cities or counties. Because flagstone patios often increase the value of the home, this may impact prices throughout the neighborhood.

Flagstone Patios Cost By Method of Installation

There are two main methods of laying a flagstone patio: Dry-laying the patio, which is more affordable, or wet-laying the patio.

Dry-Laid Flagstone Patio Costs

An average flagstone patio costs between $2,900 and $5,400 to dry lay. This is more affordable because the patio will sit on top of sand and gravel, rather than poured concrete.

Here’s how it’s done: local patio contractors cut and shape stone blocks according to your vision. After they’ve been cut, the contractor will put grout between the stones. The grout keeps the stones in place and helps create the elegant finish that defines flagstone patios.

Wet-Laid Flagstone Patio Costs

A wet-laid flagstone patio can range from $3,700 to $8,000. This extra cost comes from the contractor needing to create a concrete base, rather than a sand and gravel base.

As soon as the concrete is poured, contractors need to work quickly to place the stones before the concrete sets. After the concrete sets, there is little that can be done to change the position of the stones. In order to give the stones a stylish finish, grout is put between them after they have been laid and the concrete has set. Consider this the final piece of the puzzle.

Compensating for variability

Flagstone is a natural material and thus quite variable. The experience of experienced contractors has taught them to order about a quarter of a ton more stone than they estimate for the project.

Even when taken from the same quarry, it will not necessarily match the same stone from a deeper level or slightly different area. It is for this reason that contractors prefer to order at least 25% more stone than is originally estimated to avoid having to place a second order if they run out of stone.
Flagstone is irregular in shape, and it must be pieced together into a mosaic. There must be a sufficient choice to complete this mosaic at the end of the process when there is little left to pick from.
The pieces are more prone to cracking or even breaking when using thin veneer flagstone laid over a concrete slab. The overage ensures there is enough extra to compensate for these losses.
There are often odd pieces of flagstone mixed with lots of uniformly colored flagstone. A larger quantity ensures there will be alternates available on-site without reordering.

Flagstone Patio Last

Under normal conditions, flagstones and pavers are remarkably durable, lasting up to 10 years. However, for flagstones to last this long, their depth must be suitable for the location where you’re installing them.

In contrast to pavers, which are often about 3 1/2 inches thick, flagstones are usually thinner. The product is usually between 1/2 ”-1” thick. Even though it’s an extremely durable and resistant material, still, in some situations, it may not be enough.

Also, if installed on driveways, flagstones will always be susceptible to break if compared to pavers. The product can’t take the heavyweight very well.

However, flagstones can offer a great deal of personalization if they are made from quality material and are installed correctly. And while not ideal for driveways, they look great on patios and walkways.

In addition, flagstones are usually larger (and sometimes come in different shapes). If one of the stones breaks, they’re heavier than pavers and will demand a little bit of effort from you.

But the task itself is somewhat simple. Just remove the stone, clean the bed, apply your mortar, and reattach it.

Flagstone Patio – Pricing and Installation Cost Checklist

Installing a Flagstone Patio isn’t an easy task to perform and can leave you with a sore back. You might find it more cost-effective to hire a landscaping or, mason company to perform the work for you. Landscaping or, mason companies will most always get better prices on Flagstone Patio — saving your back any additional costs of Flagstone Patio materials, so shop around, and ask your neighbors if they can recommend someone.
Expect the Flagstone Patio prices to fluctuate between various companies – every company has different operating expenses and overhead.

Try to get prices in late Fall, or early winter – you should expect aggressive pricing discounts by waiting for a contractor’s down season.
Try to budget an additional 7-15% more on top of what our calculator gives out for Flagstone Patio cost.
Visit every supply house that sells your particular brand of Flagstone Patio and try to negotiate a better price with each supplier – I save on average 20%.

Cost to Install a Flagstone Patio Yourself

On average, a 200-square-foot flagstone patio costs $955 to $2,385 to DIY. Most people who tackle a DIY flagstone patio prefer the dry-laid method because it doesn’t require you to pour and mix concrete.

Most of this cost is incurred by the flagstone itself, which costs between $700 and $2,000 per square foot. Other materials you’ll need are sand, grout, and gravel, which cost around $105 to $115. Because you’ll need to place a seal and cut stone, you might need to borrow specific equipment, which will cost around $70 to $90 for the equipment and around $200 to $300 for a gallon of sealer.

If you’re set on a wet-laid flagstone patio, you’ll want to leave that to the professionals. A beautiful patio that will make everyone jealous is built by them quickly and with the necessary equipment. Even though you’ll pay more, you’re likely to see a bigger gain in your house’s value.

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