Understanding Groundworks and Masonry Costs in Surrey

What Are Groundworks?

Groundworks are all the jobs that prepare the land before you build. They create a safe, stable base for your driveway, extension, or new build. Typical groundwork includes:

• Clearing the site (removing trees, bushes, or old structures)

• Excavating the ground

• Digging and pouring foundations

• Installing drainage and soakaways

• Laying hardcore or concrete base

• Utility trenching (water, electric, gas)

  
  

If this stage isn’t done properly, it can lead to serious problems later on—like cracks, sinking, or water damage.

What Is Masonry?

Once the groundworks are done, the next step for an extension or outbuilding is often masonry. That usually means:

• Blockwork – Concrete blocks that make up the inner structure or walls

• Brickwork – Facing bricks laid to match your existing house

• Cavity walls – A combination of blockwork and brickwork with insulation in between

  
  

This is where your structure starts to take shape, and quality here matters just as much as below ground.

Typical Groundwork & Masonry Costs in Surrey (Updated 2025 Rates)

Here’s a general guide to costs for a typical project in Surrey.

Driveway Groundworks

• Excavation and base layer only: £48 – £84 per m²

• With drainage or poor access: £84 – £120+ per m²

  
  

A standard 50m² driveway might cost around £2,400 to £6,000, not including the final surface.

Extension Groundworks

• Small single-storey extension (e.g. 3m x 4m): £4,800 – £9,600

• Deeper foundations or complex drainage: Up to £18,000+

  
  

Prices vary depending on ground type and local requirements. Clay-heavy areas like Guildford and Reigate often require deeper foundations.

Masonry (Blockwork & Brickwork)

Once the foundations are complete, the masonry work begins. Here are the updated average rates:

• Concrete blockwork (inner walls): £60 – £84 per m²

• Face brickwork (outer walls): £96 – £144 per m² plus the cost of the brick

• Full cavity wall with insulation: £144 – £320 per m²

  
  

For a small extension, expect masonry costs to be in the range of £6,000 to £19,000+ depending on design and materials.

What Affects the Cost?

Here are a few things that can change the price of both groundworks and masonry:

• Soil type – Clay, sand, and chalk all need different approaches

• Access – Can we get machines and materials in easily?

• Drainage – Does the site need a soakaway or upgraded system?

• Materials – Facing bricks can vary a lot in price, especially if matching existing ones

• Regulations – Building control may require deeper foundations or specific insulation

  
  

What’s Included in Our Quote?

When we quote for a groundwork and masonry job, we include:

• Free site visit and advice

• Excavation, muck-away, and base layers

• Drainage and utility trenching if needed

• Supply and laying of concrete foundations

• Full masonry up to damp-proof course (DPC) and beyond

• Blockwork, insulation, and facing brickwork to match your home

  
  

We don’t believe in hidden costs or last-minute surprises. Everything is discussed upfront.

Tips for Keeping Costs Down

• Get plans or drawings early – we can price more accurately

• Use a local company – we know Surrey’s ground, rules, and materials

• Choose bricks that are readily available – long lead times cost money

• Avoid the cheapest quote without checking reviews or previous work

  
  

Need Groundworks or Masonry for a Project in Surrey?

We’re a local team offering reliable groundwork and masonry services across Surrey. We’ve worked on all kinds of projects—from small home extensions to full site preparation for new builds. Whether you're a homeowner adding space or a developer starting from scratch, we’re here to help.

Get in touch for a free, no-obligation quote—we’ll take a look, talk through your options, and give you a clear price based on your needs.

Call us on 0203 488 6351 or info@jwcce.co.uk.

Conclusion

Understanding the costs associated with groundworks and masonry is crucial for any construction project. By knowing what to expect, you can budget effectively and avoid unexpected expenses. Remember, investing in quality groundwork and masonry will pay off in the long run. It ensures the stability and durability of your structure, providing peace of mind for years to come.

If you're looking for high-quality groundwork and masonry services, look no further. We are committed to delivering exceptional results tailored to your specific needs. Reach out today, and let's get started on your project!