Key Takeaways -

• Pergola costs vary by size, materials, and design features, ranging from £600 for basic DIY to £10,000 for custom builds.
• Wood, metal, vinyl, and fibreglass are common pergola materials with different costs and maintenance needs.
• Professional installation costs £250 - £500 per day, while DIY kits range from £600 to £2,800.
• Check local regulations before building, and ensure proper site preparation and regular maintenance for longevity.

Building a pergola can enhance your garden, offering both beauty and functionality. A pergola is a simple structure with vertical posts and an open roof, combining sun and shade. It’s perfect for creating a relaxing outdoor space and can increase your property's value.

We will cover the key factors that affect the cost of pergola building, including materials, size, design, and labour. We’ll also look at the benefits of having a pergola, such as improved outdoor living space and added aesthetic appeal.

Keep reading to learn everything you need to know about building a pergola. We'll break down the costs, explore material options, and provide practical tips for creating your ideal outdoor retreat.

Factors Affecting the Cost of Building a Pergola

Size of the Pergola

So, how much does it cost to build a 12x12 pergola? Or maybe you want a larger pergola, like a 20x20 structure.? The size of your pergola significantly affects its cost.

Smaller pergolas, like those around 10x10 feet, are more affordable and suitable for cosy seating areas or small gardens. Medium-sized pergolas, such as 12x12 feet, balance cost and space, making them ideal for dining areas.

Larger pergolas, like 16x16 feet, provide extensive coverage but have higher material and construction costs (1).

Materials

The materials you choose for your pergola also impact the overall cost. Wood options vary widely in price. Cedar and pine are more affordable, while teak and redwood are pricier but offer greater durability.

Metal pergolas, made from aluminium or steel, offer different benefits and costs. Aluminium is lightweight and cost-effective, while steel is stronger and more expensive.

Vinyl pergolas are low-maintenance and budget-friendly, while fibreglass options are durable but come at a higher cost.

Design and Features

The design and features of your pergola play a crucial role in determining its cost. Standard designs are generally less expensive, whereas custom designs can significantly increase prices due to unique specifications.

The type of roof you choose also affects the cost. Slatted roofs are basic and cheaper, retractable roofs are mid-range, and louvred roofs are the most expensive.

Adding extra features like LED lighting, heating, or drop sides will increase the overall cost but enhance the pergola’s functionality and comfort.

Location and Site Preparation

Location and site preparation are important factors in the cost of building a pergola. Costs can vary by location due to differences in labour rates and material availability, with urban areas typically being more expensive.

Proper site preparation, such as levelling the ground and building a foundation, adds to the cost but is essential for ensuring the stability and longevity of your pergola.

Labour Costs

Labour costs are another significant factor. Professional installation, averaging £250 - £500 per day, ensures quality but is more expensive.

Alternatively, DIY kits are cheaper and can save money, though they require time and effort to assemble correctly. Choosing between professional installation and DIY will depend on your budget and skill level.

Cost Breakdown by Material

Wooden Pergolas

Wood pergolas offer a natural and timeless look, but the cost varies by wood type. Cedar pergolas range from £20 to £30 per square foot, offering a balance of durability and affordability. Pine is a more budget-friendly option at £15 to £25 per square foot, though it requires regular maintenance.

Teak is the premium choice, costing between £45 and £80 per square foot, known for its exceptional durability and resistance to weather. Redwood, priced at £30 to £40 per square foot, combines durability with a rich, attractive appearance.

Metal Pergolas

Metal pergolas are durable and modern, with aluminium and steel being the most common options. Aluminium pergolas cost between £10 and £25 per square foot, making them lightweight and affordable.

Steel pergolas, however, are more robust and can cost between £ 1,000 and £1,500. They offer superior strength and longevity but at a higher price point.

Vinyl Pergolas

Vinyl pergolas are an excellent choice for those seeking a low-maintenance, cost-effective option. The cost of vinyl pergolas ranges from £10 to £25 per square foot. They are durable, weather-resistant, and require little upkeep, making them a practical option for many homeowners.

Fibreglass Pergolas

Fibreglass pergolas are known for their durability and sleek appearance. They are priced between £40 and £60 per square foot.

While they are more expensive than other materials, their strength, longevity, and minimal maintenance needs make them a worthwhile investment for a long-lasting pergola.

Pergola Cost Breakdown by Type

Standard Sizes and Costs

Standard pergola sizes come with various costs based on dimensions and materials. A 3m x 3m pergola typically costs between £1,399 and £3,349, offering a compact yet functional outdoor space. For a slightly larger option, a 3m x 4m pergola ranges from £1,749 to £3,999.

Larger sizes, such as 3m x 6m, are more expensive, ranging from £8,000 to £8,639, but they provide ample space for outdoor activities. A 4m x 4m pergola generally costs around £4,000, balancing size and cost for moderate outdoor needs.

Custom Pergolas

Due to their unique sizes and designs, custom pergolas come with additional costs. Tailoring a pergola to fit specific garden dimensions or adding custom features can significantly increase the price.

Custom designs allow for greater personalisation but require more materials and labour, increasing the overall cost.

Roof Options

The type of roof you choose for your pergola affects the overall cost. A cloth roof is the most affordable option, costing around £150. Retractable roofs range from £10 to £25 per square foot, offering flexibility and convenience.

Louvred roofs, known for their adjustable slats that provide variable shade and ventilation, are the most expensive, costing approximately £70 per square foot. Each option provides different levels of functionality and aesthetic appeal.

Average Cost of Building a Pergola in the UK

General Costs

In the UK, the average cost to build a pergola ranges from £2,300 to £2,500, including labour and materials. This price range covers a variety of standard pergola sizes and materials, providing a baseline for budget planning.

Cost by Size

The cost of a pergola varies significantly by size. A standard 3m x 4m or 6m x 3m pergola typically costs around £2,500. Smaller pergolas, with simpler designs, can be more affordable, ranging from £400 to £600.

Larger pergolas, such as 4m x 6m, can be more expensive, ranging from £5,000 to £10,000, reflecting the increased complexity and material requirements.

Cost by Style

The cost also depends on the pergola's style. Freestanding pergolas and attached structures have different price points, and roof styles, such as closed or retractable roofs, add to the cost.

High-end custom builds, which include unique designs and modern features, can cost up to £10,000 and offer personalised aesthetics and functionality.

Labour Costs

Professional Installation

Hiring professionals to install your pergola typically costs between £250 and £500 per day. Depending on the size and complexity of the pergola, the installation process usually takes 1 to 2 days.

Professional installation ensures a high-quality finish and saves you time and effort, making it a worthwhile investment for many homeowners.

DIY Kits

Is it cheaper to buy or build a pergola? Opting for a DIY pergola kit can significantly reduce costs, with prices ranging from £600 to £2,800.

These kits are designed for easy assembly and usually take 1 to 2 days to complete, depending on your experience and the kit's complexity. DIY kits offer a cost-effective solution for those willing to invest time and effort into the project.

Additional Costs

Permits and Regulations

While planning permission is generally not required for building a pergola, you should check with your local council to ensure compliance with any local building regulations. This step helps avoid any potential legal issues and ensures your pergola meets all safety standards.

Site Preparation

Proper site preparation is essential for a sturdy pergola. This includes ground preparation to ensure a level surface and foundation requirements for stability. Depending on the condition of your site, these steps may involve additional costs for materials and labour.

Maintenance and Upkeep

Regular maintenance is crucial for the longevity of your pergola. Wood pergolas require routine cleaning and staining to protect against weather damage.

Other materials, such as vinyl, aluminium, and fibreglass, also need maintenance, though they typically require less frequent attention than a wood pergola.

DIY vs. Professional Installation

Choosing between building your own pergola and professional installation from pergola builders impacts both cost and effort. DIY kits are cheaper, ranging from £600 to £2,800, but require time and effort.

Professional installation, costing £250 to £500 per day, ensures quality and saves time. Each option has its pros and cons, depending on your budget and skill level (2).

Frequently Asked Questions

What Is the Average Lifespan of a Pergola?

The average lifespan of a pergola varies depending on the material used. Wood pergolas can last between 10 and 15 years with proper maintenance, including regular staining and sealing. Vinyl and aluminium pergolas, on the other hand, can last 20 years or more with minimal upkeep.

Regular maintenance, weatherproofing, and protecting the structure from harsh elements can significantly extend the lifespan of any pergola.

How Much Will It Cost Me to Build a Basic DIY Pergola Without a Roof?

Building a basic DIY pergola without a roof can cost between £600 and £1,500, depending on the size and materials chosen. This estimate includes the pergola kit's cost, additional assembly materials, and any necessary tools.

Opting for more affordable materials like pressure-treated pine can help keep costs down. DIY projects also allow for flexibility in design and potential savings on labour costs.

Can I Build My Own Brick Pergola by Watching Videos on YouTube?

Yes, you can build your own brick pergola by watching instructional videos on YouTube. However, brick pergolas are more complex and may require advanced skills, tools, and time.

It's important to ensure you follow safety guidelines and local building codes to avoid structural issues. Consulting with a professional or obtaining expert advice can also be beneficial to ensure the stability and safety of your pergola.

Will I Need to Pay for Planning Permission If I Want to Build a Pergola?

Planning permission is generally not required for building a pergola, but it's advisable to check with your local council to confirm. Local building regulations may vary, and certain restrictions might apply based on your property's location and the pergola's size and design.

It's always best to verify to avoid any potential issues and ensure compliance with all relevant guidelines.

Can a Pergola Be Attached to a House?

Yes, a pergola can be attached to a house, creating an extended outdoor living space that seamlessly integrates with your home's design.

Attached pergolas provide a smooth transition between indoor and outdoor areas, enhancing your home's functionality and aesthetic appeal. Proper installation ensures stability, safety, and protection against weather conditions.

What Kind of Plants Can Be Grown on a Pergola?

Various climbing plants, including wisteria, ivy, and roses, can be grown on a pergola. These plants add beauty, provide natural shade, and enhance the pergola's overall appeal. Choosing the right plants can create a lush, inviting outdoor space.

Additionally, you can experiment with different flowering vines and evergreens to suit your taste and climate conditions, ensuring a vibrant and thriving garden feature.

Conclusion

Building a pergola can enhance your outdoor space, providing both aesthetic appeal and functional benefits. The cost varies depending on size, materials, design features, location, and labour.

Whether opting for a DIY project or professional installation, understanding these cost factors can help you make an informed decision. With proper planning and maintenance, a pergola can be a long-lasting and valuable addition to your home, offering a perfect blend of beauty and utility.

Sources -

1. https://www.harbourlifestyle.co.uk/blogs/news/cost-to-build-a-pergola
2. https://gradedtradesmen.co.uk/price/how-much-does-pergola-building-cost