specialist basement contractors

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No-Obligation Piling/Underpinning

Our highly skilled engineering company offers a range of expert services for residential and commercial construction projects. As specialist piling, foundations and basement contractors in London and the South West, we construct basements for homes and other buildings.

No matter the type of basement you want or the ground conditions you have, our specialist basement contractors will work with you to get the best construction method with the least disruption possible.

Our expertise in foundations, underpinning and groundworks give us the advanced engineering and construction methods required to create a strong, stable, useful basement for you.

Increase the size and value of your property, with specialised basement construction.

Why choose Dart & Co as your Basement Contractors

We are experienced basement contractors and piling contracting specialists so can give you comprehensive support throughout your project. Our engineering design services can provide complete plans for your project, while our in-house estimators can create a detailed budget.

We complete design and calculations quickly – usually within 4 days – so work can start quickly. We also offer free advice, competitive prices, price matching and tips on saving money.

We operate to the highest standards – all of our projects come with a 10-year insurance guarantee and a 10-year warranty.

Free Consultancy

Free Project Assessment from Dart & Co

Budget Friendly

Competitive pricing & price matching

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Fast & Clear Quotations

About

Dart & Co Foundation

Founded in 2013 by Ashley Dart, Dart & Co Foundations works across the UK, offering professional services in piling, underpinning and foundation groundworks for large and small structures.

We believe in high-quality workmanship, so if you’re looking for a dedicated team to get your project going, we’re the answer!
Built on Trust

As skilled contractors, we hold the expertise and experience to work with you every step of the way. We offer free advice and cost-saving tips regardless of project size, we offer competitive pricing and price matching, and you will not be required to pay a deposit. We are a self-sufficient, hard-working, independent piling company that aim to provide cost-effective services to a number of UK locations.

underpinning contractors
Value Accreditations

We are supported by a range of companies including Checkatrade and FSB and are proud to be on the list of trusted piling foundation contractors. We’ve also worked with some of the biggest building industry names, and as partners or independent contractors, we are recognised as industry specialists.

Free Consultancy

Free Project Assessment from Dart & Co

Budget Friendly

Competitive pricing & price matching

Get A Quote

Fast & Clear Quotations

Built on Trust

As skilled contractors, we hold the expertise and experience to work with you every step of the way. We offer free advice and cost-saving tips regardless of project size, we offer competitive pricing and price matching, and you will not be required to pay a deposit. We are a self-sufficient, hard-working, independent piling company that aim to provide cost-effective services to a number of UK locations.

underpinning contractors
Value Accreditations

We are supported by a range of companies including Checkatrade and FSB and are proud to be on the list of trusted piling foundation contractors. We’ve also worked with some of the biggest building industry names, and as partners or independent contractors, we are recognised as industry specialists.

Our Valuable Feedback

Rated 4.5 out of 5
Mr A Peters

Dart & Co Foundations are a very good piling company who I would recommend to anyone, their workforce was very quick & efficient.

Rated 4.5 out of 5
Mr C Austin
Dart & Co’s team worked hard to please and the quality of work and safety on site was excellent.
FAQ's

Frequently Asked Questions About Basement Contracting

The cost of building a basement can vary significantly based on several factors like location, size, soil conditions, and the complexity of the design. Generally, constructing a basement can be more expensive than adding a similar amount of square footage above ground due to excavation, foundation, waterproofing, and additional structural requirements.

Key costs to consider are the excavation and site preparation, the foundation and structure, waterproofing, installing utilities, and finishing details. 

Basement excavation refers to the process of digging or excavating the ground beneath a building to create space for a basement. It involves removing soil, rocks, and other materials to create a cavity or a lower level beneath the ground level of the structure. 

Yes, it’s possible to build a basement in a house, especially during the initial construction phase or as part of a renovation or expansion project. Building a basement involves excavating beneath the ground level of the house to create a lower-level space that can serve various purposes, such as storage, additional living space, recreational areas, or utility rooms. 

Basement rooms can tend to be cooler than rooms on upper floors due to reduced natural lighting allowing less sunlight to heat the room. Secondly, being underground means basements are naturally cooler because they’re surrounded by soil, which maintains a relatively stable temperature. This can make the room feel colder, especially in colder climates.

To overcome the lower temperatures, enhancing insulation effectively traps heat indoors, preventing it from escaping through walls and floors. Secondly, implementing various heating options like portable radiators, or extending central heating to the basement helps regulate the temperature. Thirdly, sealing any drafts around windows, doors, and other openings is crucial to maintaining warmth by preventing cold air from seeping in.

Finishing a basement can significantly increase the value and appeal of a house for several reasons. The added living space can be used as an extra living area, entertainment space, home office, guest room, or even a rental property, which enhances the overall functionality and desirability of the property. A finished basement can potentially increase the value of your home due to the increase in square footage. 

Yes, a basement can be converted into a bedroom in the UK, provided that certain building regulations and safety standards are met. There must be a safe means of escape in case of an emergency, such as a fire. This typically involves having an appropriate-sized window or door that can be used as an emergency exit. There must be adequate ventilation and access to natural light. Any conversion work must comply with building regulations regarding insulation, fire safety, structural stability, electrical installations, and other relevant aspects. Lastly, planning permission might be required depending on the building type and location. 

 

Get in touch

contact our basement experts today

For a free, no-obligation quote for basement construction, piling and foundations contact us using the form, or by giving us a call. We offer competitive quotes to all our clients, whatever the size of the work.

If you’ve received a quote from another company within the last 28 days, we can usually beat it.

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Join the satisfied clients who chose Dart & Co’s piling services for stability and strength.
Dart & Co
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