How Much Does a Flagstone Patio Cost to Install in 2025?
Putting in a flagstone patio costs an average of $4,500
The average cost to install a flagstone patio ranges from $750 and $8,400, depending on size and materials.
Key cost factors include patio size, materials, installation method, and design complexity.
Installing a flagstone patio enhances your outdoor space and can increase your home's value.
Hiring a professional ensures proper installation, durability, and longevity of your patio.
Regular maintenance preserves the beauty and functionality of your flagstone patio over time.
This article was updated using automation technology and thoroughly reviewed for accuracy by HomeAdvisor Editor Ryan Noonan.
Most flagstone patio installations cost between $750 and $8,400, depending on the size and materials. On average, homeowners spend around $4,500 for a 300-square-foot patio. A flagstone patio enhances your outdoor space, adds elegance to your home, and creates the perfect area for entertaining guests. It also increases your property's value, making it a worthwhile investment.
Flagstone Patio Cost Factors
When calculating your total cost, consider factors such as the type of flagstone selected, design complexity, permit requirements, and the season. These elements can significantly impact the final price of your flagstone patio.
Type of Stone
The color and type of flagstone you choose can impact the overall price. Your contractor can discuss the benefits and costs of various flagstones, including these common types.
| Type | Price per Ton |
|---|---|
| Arizona Flagstone | $200–$450 |
| Basalt | $500–$700+ |
| Bluestone | $375–$450 |
| Colorado Red | $200–$400 |
| Flagstone Rock | $400–$500 |
| Limestone | $250–$400 |
| Quartzite | $400–$450 |
| Sandstone | $200–$350 |
| Slate | $475–$700 |
| Travertine | $800+ |
Design Complexity
If you use flagstone with factory-cut edges for a simple design, prices will be on the lower end. But if installers cut stones to fit complex design patterns on site, expect higher labor costs. You may also need to budget for additional flagstone (up to 25% more) because there may be more wasted pieces.
Labor
Labor costs for installing a flagstone patio range from $1,000 to $4,000, depending on contractor rates and project complexity. Installing a flagstone patio is labor-intensive and requires precision in cutting and laying the stone. Hiring an experienced patio installation professional ensures a high-quality installation and can prevent costly mistakes that may occur with DIY attempts.
Permits
Depending on where you live, you may need to obtain a construction permit to add a patio to your project. A construction permit costs as little as $150 for a patio, but you can work with your contractor to determine what permits you need and how much they’ll cost.
Flagstone Patio vs. Stamped Concrete
Flagstone patios cost between $750 and $8,400, while stamped concrete patios range from $400 to $18,900, depending on size and design complexity. Choosing between flagstone and stamped concrete depends on your budget, aesthetic preferences, and the desired durability and maintenance level for your outdoor space.
Season
If you live somewhere with cold winters, contractors may charge more during their off-season. If you can, wait until spring to have your patio installed to ensure lower rates.
Flagstone Patio Cost per Square Foot
The average cost to install a flagstone patio is $15 to $30 per square foot. The table below explores flagstone patio cost ranges depending on the project's square footage.
| Patio Dimensions | Total Square Footage | Average Cost Range to Install |
|---|---|---|
| 7x7 | 49 | $735–$1,470 |
| 10x8 | 80 | $1,200–$2,400 |
| 12x12 | 144 | $2,160–$4,320 |
| 16x18 | 288 | $4,320–$8,640 |
| 20x20 | 400 | $6,000–$12,000 |
Note: Some contractors may order additional flagstone because installation can result in waste; the table above doesn’t include additional materials. When you hire a paver or contractor for the installation, ask them how they’ll calculate the amount of flagstone needed.
Flagstone Patio Costs by Installation Method
Like with the cost of any stone patio, flagstone patio prices can vary dramatically based on the installation method. Dry-laid patios are the easiest to install, so labor costs are lower. Expect to pay slightly more for mortar-set installation and significantly more for concrete-set (or wet-laid) flagstone patio installation.
As we examine the flagstone patio cost for each installation method, we will assume a 50-square-foot patio for the low end of the range and a 400-square-foot patio for the high end.
Dry-Laid
Dry-laying a flagstone patio costs around $1,900 to $4,400 on average.
The installation starts with excavating and leveling the area before laying down sand and gravel as a base. Once that’s done, installers cut and fit the stone blocks to create your ideal patio shape. Then, they put grout between the stones to secure them in place and create a beautiful finish.
Mortar-Set
If you already have a suitable concrete base, a mortar-set flagstone patio typically costs between $2,000 and $5,000. This method is similar to dry-laid, except the installer uses mortar instead of gravel or sand, which adds more stability and durability to the patio.
Wet-Laid
A concrete-set (wet-laid) flagstone patio generally costs between $2,700 and $7,000.
The wet installation starts with excavation and leveling of the patio area. Then, the contractor cuts the flagstones to size and does a test fit. After that, the installer mixes and pours four inches of concrete to create the base. They must work fast to evenly place the stones in the concrete before it sets up. Grout goes in between the flagstones at the end to complete your desired look.
DIY vs. Hire a Flagstone Patio Pro
While labor is a significant portion of the installation cost, DIY costs can quickly add up with purchasing materials like flagstone ($4 to $6 per square foot), grout, mortar, sand, gravel, and necessary tools. For a 200-square-foot patio, DIY costs range from $855 to $1,385, provided you have basic tools. Installing a flagstone patio requires skill and precision, and mistakes can lead to additional expenses.
An average DIY installation cost includes:
Flagstone: $600–$1,000
Sand, grout, and other supplies: $95–$105
Rental equipment: $60–$80 per day
Sealer: $100–$200 for 1 gallon
Taking the DIY route reduces labor costs, but it requires significant time and carries the risk of costly mistakes. Achieving a level surface and precise stone placement demands expertise. Hiring a professional flagstone patio installer ensures a durable, high-quality result and maximizes your investment.
How HomeAdvisor Gets Its Cost Data
No place is more important than your home, which is why HomeAdvisor connects homeowners with local pros to transform their houses into homes they love. To help homeowners prepare for their next project, HomeAdvisor provides readers with accurate cost data and follows strict editorial guidelines. After a project is complete, we survey real customers about the costs to develop the pricing data you see, so you can make the best decisions for you and your home. We pair this data with research from reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects.
Frequently Asked Questions
Resealing a 200-square-foot flagstone patio costs between $300 and $550. Cleaning supplies, such as vinegar, soap, and a scrub brush, add about $10 to $15 to your costs. Regular maintenance and cleaning preserve the stone's integrity and enhance your flagstone patio's appearance, keeping your outdoor living space inviting and long-lasting.
Cleaning a flagstone patio is difficult work. Start by hosing down the patio and then using a mixture of dish soap and water to scrub each stone with a bristle brush or large sponge. You might need to use white vinegar to remove mold. If the patio is too dirty, it might be worth the cost of hiring a professional cleaning service. If you need more than routine maintenance, budget between $3 and $30 per square foot for the cost of patio repair.
Flagstone for patios presents an inherently neutral natural color palette. You have many choices, including shades of grey, black, red, yellow, brown, and tan. Certain varieties, such as bluestone, produce a subtle bluish tint. The stone’s natural hues enhance curb appeal and provide a timeless elegance to your outdoor space.
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