Tarmac vs Block Paving: Which is More Expensive?

When contemplating the cost of driveway installations, two popular options often come to mind: tarmac and block paving. Both have their unique benefits, but one common question homeowners frequently ask is, "Is tarmac more expensive than block paving?" The answer, however, is not as straightforward as it may seem.

Paving material costs play a significant role in the total expenditure, but other factors, such as labor, preparation, and additional features, also influence the overall cost. In this comprehensive guide, we'll explore the cost breakdown of both tarmac and block paving, helping you make an informed decision based on your budget and preferences.

Cost of Tarmac Driveways

Tarmac, or asphalt, is a popular choice for driveways due to its durability, low maintenance, and quick installation. Its cost is affected by various factors, including excavation, base, and surface material.

Excavation and base installation typically account for 40-50% of the total tarmac driveway cost. These aspects depend on the driveway's size, soil type, and local excavation prices. The remaining 50-60% is allocated to the surface material – tarmac – and any additional features like edging or drainage.

Tarmac Surface Material Costs

Tarmac surfaces usually range between £30 and £60 per square meter, including installation. This variation depends on the type of tarmac – hot rolled (suppressed) tarmac is cheaper, while warmacz (recycled) tarmac offers better environmental credentials at a slightly higher price.

Additional features, such as drainage channels, edging, or respraying, can slightly increase the cost. Drainage and edging might add £5-£10 per linear meter, while a respray or decorative options can range from £10 to £30 per square meter. Combined, these features might increase the total cost by 10-20%.

Tarmac Driveway Maintenance Costs

While tarmac driveways require minimal maintenance, regular cleaning and occasional resurfacing are necessary to retain their smooth appearance and structural integrity. These costs can range from £10 to £20 per square meter for cleaning and £30 to £60 per square meter for resurfacing.

The lifespan of a tarmac driveway depends on factors like traffic, weather conditions, and maintenance. On average, you can expect a well-maintained tarmac driveway to last between 15 and 30 years, making its overall cost per year quite competitive.

Cost of Block Paving Driveways

Block paving, available in various materials like concrete, clay, or natural stone, offers a visually appealing alternative to tarmac. Its cost breakdown differs from that of tarmac, with base and installation costs oscillating between 45% and 55% of the total expenditure.

The remaining 45-55% is allocated to the block paving materials, edgings, and any additional features. The cost of block paving is heavily influenced by the chosen material, with concrete blocks being the most affordable and natural stone being the most expensive.

Block Paving Material Costs

Concrete block pavers usually cost between £10 and £30 per square meter, including installation. Premium grade concrete blocks, herringbone patterns, or bespoke designs might increase this cost by £5-£15 per square meter. Meanwhile, natural stone block pavers can range from £50 to £150 per square meter, depending on the type of stone and finish.

Edgings, additives, and other features might increase the block paving cost by 10-20%. For example, a herringbone pattern or a cobble border can add £3-£10 per square meter, while driveway lighting or water drainage solutions can range from £15 to £30 per linear meter.

Block Paving Driveway Maintenance Costs

Maintaining a block paving driveway involves regular cleaning, moss removal, and occasional block replacement or reprorašing. Cleaning typically costs between £5 and £20 per square meter, while moss removal can range from £10 to £30 per square meter. Replacing damaged blocks and reprorašing usually costs between £30 and £60 per square meter.

Well-maintained block paving driveways can last between 25 and 50 years, making their overall cost per year quite competitive. However, the higher initial cost and ongoing maintenance expenses should be considered when comparing block paving with tarmac.

Now that we've explored the costs of tarmac and block paving driveways, it's essential to remember that the price per square meter doesn't tell the whole story. Your choice should also consider factors like aesthetics, maintenance requirements, and resale value. Before making a final decision, request quotes from reputable driveway installers in your area to get a better understanding of the potential costs and benefits of each option.