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Find foundation, underpinning and piling experts

Foundations, underpinning and piling are complex, technical services that require the knowhow of specialist groundworkers and engineers. More than any other part of your home, it pays to invest in solid foundations, so find a professional you can trust today.

Browse Underpinning / Piling / Foundations specialists

Take a look at our Underpinning / Piling / Foundations specialists profiles, read reviews and request quotes directly.

CARLOS CRUZ

Underpinning / Piling / Foundations

Our company has been serving Londoners for more than 7 years and provides a wide range os services for the home. From minor repairs to refurbishments and extensions, we are prepared to help. No job is too big or small! Feel free to browse our website and find out more about our wide range of services and do not hesitate to contact us should you like what you see. If you are looking for a London handyman, carpenter, odd job man, home maintenance services firm, then you have come to the right place - Your London Handyman - specialists at maintaining or improving your home, making things work and saving you time, money and frustration! We are your one-stop shop for handyman services in London - we offer a free site visit to diagnose the problem, then produce a written quote for you on the spot and start work from the moment you want us in, complete the work in record time, clean away all our mess and even give you phone call a few days later to ensure that your our work was to your satisfaction... all inclusive within our price. To see more please visit our website at

Latest homeowner review

Reviewed by J on 11/3/2019

Very professional, highly recommended.

HC Interiors

Underpinning / Piling / Foundations

HC Interiors offer redecoration services, installs kitchens, bathrooms & flooring. As a member of Dulux Select, it benefits from their guarantee with respect to all painting & decorating jobs. See my website for examples of previous work & references.

Latest homeowner review

Reviewed by Ben on 21/3/2019

Hugo is fantastic, he is knowledgeable and proactive at sourcing solutions to issue. He did a fantastic job at correcting a bodged kitchen put in by another builder and make it look stunning. He also then fixed a leak in the W/C by installing a full new toilet and moved the mains water supply. No job was too challenging for him and I look forward to working with him again.

Arteaga Carpentry

Underpinning / Piling / Foundations

Arteaga Carpentry prides itself in given there clients a clear and honest service for a fair price. We can tackle any size jobs. Extension, loft conversion, deck building to property management.

Latest homeowner review

Reviewed by Ian on 16/4/2019

Sound fella, great comms and ameniable. Dedicated to doing a good job. Would recommend.

East Lancs Construction have expanded organically, adding additional services as the years went by. We now offer a complete property maintenance service. We provide value for money, do the right job, at the right price, at the right time to suit our customers and keep things simple. As a family run business we pride ourselves on offering a personal service. Engineers turn up on time, wearing smart company uniform, driving one of our spotless vans and carrying company I.D. They will always carry out work to the highest standard and they are highly experienced and qualified in their respective trades. Our work carries a guarantee which is valid for 12 months from the date of the work completed. Your invoice is your reference for your guarantee. Bathrooms Kitchens Heating/Plumbing Plastering Electrical work Fencing Decking Glazing Groundworks/Foundations Resin Driveways Summer Houses

Latest homeowner review

Reviewed by Jon on 31/3/2019

Really happy with how quickly Diana and Larry replied, assessed and did the work. Larry was with us the next day and the work has been completed within two weeks. Very professional job, with attention to detail for the little extras which crop up. Very happy with the final result. Would employ them again.

Valley Carpentry Ltd is a well established company in the Worthing area, We do from small jobs to big jobs from commencement to completion we value are reputation on are clients and always make sure they are satisfied.

Latest homeowner review

Reviewed by David on 6/9/2018

Mike was absolutely fantastic. Very impressed with his professional evaluation of the work required, and how he would approach the job. He came on time and worked extremely hard through the heat of the day keeping his good humour. Very pleased with the result and give him full recommendation.

Mjh construction

Underpinning / Piling / Foundations

Independent building company all aspects of work carried out

Latest homeowner review

Reviewed by Ann on 24/5/2019

They have done a great job with no added extras

I have been established for 11 years and cover all aspects of building. We specialise in extensions from footings to completion. We have extensive experience in structural steel work and jobs that are potentially difficult due to limited space. We have completed work for new customers to view and by contacting us we can arrange the nearest job for you to view. We cover all of Essex and are also happy to travel to London and Kent.

Latest homeowner review

Reviewed by mrs on 7/9/2018

Arrived same day to give quote. Turned up bright and early to start job, worked fast, cleaned up afterwards and all at a fair price. Would recommend.

My name is Justin from J D Smith Stonemasons. We are a family run business with 3 generations of time served city and guilds accredited stonemasons capable of carrying out any aspect of stone masonry and a huge array of building services also.

Latest homeowner review

Reviewed by Helen on 21/1/2019

5 star service from start to finish... couldn't have been more helpful

Dean Charles

Underpinning / Piling / Foundations

I am a skilled Groundworker, with eight years of experience of working on large building sites to small council refurbes. My skills include patios and paths, concrete paths, drainage, etc. I have a keen eye for detail and a very thorough team.

Latest homeowner review

Reviewed by Brendan on 14/2/2019

Dean and his assistant Clive worked very hard with a cheerful and positive attitude. Thank you for doing such a good job.

we have been in the building industry for over 30 years,and have thousands of very happy customers we hope we can bring this expertise to you : )

Latest homeowner review

Reviewed by Caroline on 1/2/2019

responded promptly did a thorough job and explained throughout no problem recommending

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Underpinning / Piling / Foundations specialists - what you need to know

When it comes to foundations and underpinning, the name tells you everything you need to know about their importance to your home. This specialist groundwork quite literally provides the base your home is built on. And that’s why it’s absolutely vital the professionals you use are experienced experts who know what they’re doing.

The complexity of foundations (and underpinning or piling, if required) depends on the structure you’re building, and the state of the ground your home or plot sits on. Basic foundations involve filling trenches (dug precisely according to plans) with a layer of solid concrete and then building blockwork up to ground level. Alternatively, an entire trench can be filled with concrete to just below ground level before adding damp proof coursing.

Piling is becoming an increasing popular alternative to standard footings or foundations. It involves driving piles into the ground, which are made from steel, concrete or even wood. A ground beam then sits atop the foundation, which your structure can be built on.

Underpinning is required when existing foundations have become defective, and to counter issues like subsidence. The appropriate method will be recommended by an experienced groundwork specialist and potentially a structural engineer too. The standard approach to underpinning involves excavating specific sections below the footing and reinforcing them with concrete. Piling techniques provide an alternative to traditional underpinning and can be used in situations where there’s restricted access. Not only is piling faster than standard underpinning, but it has a higher load capability and less disruption. Those benefits come at a cost though, and you’ll find piling is significantly pricier than standard concrete underpinning.

Cost of foundations, underpinning and piling

It pays to invest in foundations, but quite how much you’ll need to invest depends on the type of foundations you require. Basic foundation laying involves the following steps (excluding site clearance and the setting out of footings):

  • Excavation: £7-£10 per sqm
  • Laying foundations (concrete and blockwork): £40-£60 per sqm

Piling costs are typically significantly higher than standard foundations – anywhere from 2-3 times more expensive than the concrete and blockwork method.

Similarly, underpinning costs vary according to the issue that needs to be resolved, and the method selected. For mass concrete underpinning you can expect to pay between £1,000-£2,000 per linear metre.

How to build a foundation

Basic foundations follow a fairly simple process. After you’ve consulted a structural engineer and have all the necessary plans approved, the first step is to dig out trenches. Your groundwork professional may recommend a ground survey before any digging begins. This process involves creating trial holes to ensure the foundation method you plan to use is appropriate. With (or without) that survey complete, footings can then be dug to the agreed level.

The next phase involves laying concrete into the base of the trench to at least 250mm in depth. Blockwork is then built up to floor level. This method is called a strip foundation. Alternatively, a technique known as “trenchfill” involves (unsurprisingly) filling the trench with concrete to just below ground level. Both methods are completed with the application of a damp-proof course onto which the ground floor can be installed.

How does piling work

There are three main piling techniques: screw piling, pile and beam, and piled raft.

Screw piling is the simplest piling technique to execute. A small crew of ground-workers can install screw piles and brackets by hand or with the assistance of a small excavator. This method is well-suited to walls and larger structures, when used with supporting brackets. Screw piling offers a number of benefits, including ease of installation, lower costs and reduced environmental impact.

The pile and beam method involves installing mini-piles either side of a wall. Brickwork can then be removed below the affected wall, and a reinforced concrete needle beam inserted to connect the piles. The pile and beam technique is well-suited to homes on smaller plots, or with restricted access. It’s also faster and less messy than traditional mass concrete underpinning and is capable of bearing high loads.

Finally, there’s the piled raft approach. Piled raft foundations are required when an entire building needs to be underpinned, when foundations can’t be accessed or where soil conditions aren’t suitable for any other method. Piles are placed into the ground and needle beams are installed to help bear the load. A ring beam links the needles together and the structure is then filled with concrete.

When does a house need underpinning?

Cracked walls, ceilings or flooring are the tell-tale signs that you may need to have all or part of your home underpinned. Diagonal cracks, or those that reach a quarter of an inch or larger, are classic symptoms of faulty foundations, or problematic ground conditions. More severe warning signs are walls beginning to buckle. Underpinning, either using the mass concrete method or any of the piling techniques outlined above, can help to remedy these problems.

While underpinning is usually associated with foundation problems, it can also be required if you’re planning to add another floor to a building, or if it needs to stand up to increased load-bearing requirements.

The qualifications your foundation, piling or underpinning professional needs

Foundations and piling or underpinning will almost always require the expertise of a structural engineer. They will be able to advise on load bearing considerations, as well as the most appropriate technique to use (taking ground and soil conditions into account). Choose an experienced professional who holds chartered status from the Institution of Structural Engineers.

The groundworkers carrying out your excavation work should also be experienced, though they won’t need formal accreditation. A diploma, City and Guilds qualification or evidence of completing an apprenticeship is always helpful, but ultimately you should look for a proven track record of delivering groundwork services to a high standard and complete customer satisfaction.

Planning permission for foundation, piling or underpinning work

How and where you lay foundations will be determined by the planning permission you’ve been granted. This will be decided by your local planning authority, and unless an unforeseen issue crops up you’ll need to stick closely to what you’ve been given permission for.

When it comes to underpinning, you won’t require planning permission to remedy a fault with your foundations. The only exception here is a listed building, which may have certain limitations.

Insurance for foundation, piling or underpinning work

It’s crucial that your professional holds public liability insurance, to cover your property against damage. Such is the importance of this work, most structural engineers will also hold professional indemnity insurance, protecting them in case anything goes wrong with the services they’ve provided.

Questions you should ask your foundation, piling or underpinning professional

  • For standard foundations, which method would they use (and why)?
  • Will they be using a strip or trenchfill foundation?
  • For underpinning, which technique would they advise on (and why)?
  • For piling, what is the most cost-effective option available?
  • Can they provide a warranty (or do they have professional indemnity insurance) to cover their work?

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How our service works

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