Ground source heat pumps are an efficient renewable heating solution for rural and off-grid properties

DW Plumbing are MCS certified ground source heat pump installers serving domestic properties across Cumbria, Lancashire and the Lake District. As a family-run team of BPEC qualified engineers based in Carnforth, we specialise in designing and installing ground source heat pump systems for rural and off-grid properties looking to move away from oil heating and reduce long-term energy costs. Every installation is carried out personally by our own engineers.

Ground loop and borehole specialists

Domestic ground source systems for sustainable, cost effective heating

A ground source heat pump extracts heat stored naturally in the ground and uses it to warm your home and hot water throughout the year. Unlike gas or oil boilers, ground source heat pumps run on electricity and deliver significantly more energy than they consume, making them one of the most efficient renewable heating systems available. Ground temperatures remain relatively stable year-round, meaning your system performs consistently regardless of the season. As MCS certified installers, every ground source heat pump we fit is fully certified and eligible for the Boiler Upgrade Scheme grant.

"We had a ground source heat pump installed to replace our old oil boiler. The groundworks were completed efficiently and the whole system was up and running within a week. We are pleased to say our running costs have reduced significantly. Highly recommended!"

Robert G
Heating and plumbing specialists you can trust

Family run, fully accredited, and built on doing things the right way

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Always speak to your engineer directly

When you call us you are speaking with the engineer doing the job, not a receptionist, not a sales team, not a call centre.

Every job carried out by our own engineers

Every job is planned, quoted and carried out by our own qualified engineers from start to finish, nobody else touches your home

Fully accredited, insured and qualified

We hold BPEC, OFTEC and MCS accreditations and carry full public liability insurance, giving you complete confidence on every job.

A small team you can hold accountable

We are small, local and built on reputation. Every job matters to us because in a small community, every job defines us

Family run with genuine family values

We treat every home we work in with the same care and respect we would give our own, because that is how a family business should operate

Honest advice and straightforward pricing

No jargon, no inflated quotes, no pressure. Just straightforward advice from experienced engineers who put your home first

Installation inclusions

A complete ground source heat pump installation, performed by MCS certified engineers

Every ground source heat pump installation we carry out is a complete end-to-end service. We handle the full system design, ground works, equipment supply, installation, and MCS certification. Here is what is included as standard.

Full site survey and system design

We carry out a thorough site survey and property assessment before designing your ground source heat pump system. This includes heat loss calculations and ground assessment to ensure the system is correctly sized and will perform efficiently from day one.

Ground loop or borehole installation

Depending on your land and property, we install either a horizontal ground loop or a vertical borehole system to extract heat from the ground efficiently. We assess both options during the survey and recommend the best solution for your specific site.

Heat pump unit and cylinder supply and installation

We supply and install your ground source heat pump unit and hot water cylinder, integrating everything fully with your existing or new heating system to ensure reliable heating and hot water throughout your home.

MCS certification and Boiler Upgrade Scheme support

Every ground source heat pump we install is fully MCS certified, which is required to access the Boiler Upgrade Scheme grant. We will point you in the right direction to apply for the scheme and help you understand exactly what financial support is available.

Property suitability

Ground source heat pump installation is ideal for rural properties, off-grid homes in Cumbria and beyond

Ground source heat pumps are particularly well suited to rural and off-grid properties with sufficient outdoor land, which makes them an excellent fit for many of the homes we work with across Cumbria, Lancashire and the Lake District. They perform best in well insulated properties and are an ideal replacement for oil heating systems. If you are unsure whether your property is suitable, we will carry out an honest assessment and tell you exactly what we think before you commit to anything.

Rural or off-grid property not connected to gas grid

Sufficient outdoor land for ground loop or borehole

Well insulated or willing to upgrade insulation

How we keep things simple

Our straightforward, hassle-free process from start to finish

Every job we take on follows the same straightforward process, designed to keep you informed, comfortable, and in control from the first conversation through to completion. No hidden surprises, no unnecessary disruption, just honest trade work done properly.

Get in touch

Call, WhatsApp or fill in our contact form and we will get back to you the same day to discuss your project and next steps.

Site survey

One of our engineers visits your property to assess the job and provide honest, straightforward advice with no pressure to commit.

Quotation

We provide a clear, itemised quote with no hidden costs, no jargon, and no obligation to proceed until you are completely ready.

Installation

Our qualified engineers carry out all work to the highest standard and walk you through everything on completion before we leave.

Ground source heat pump FAQs

Ground source heat pump installation questions resolved

Straight answers to the most common questions about ground source heat pump installation, efficiency, and whether it is the right choice for your property.

What is a ground source heat pump?

A ground source heat pump is a renewable heating system that extracts heat stored naturally in the ground and uses it to heat your home and hot water. It works by circulating a fluid through pipes buried in the ground, absorbing the earth's natural warmth and transferring it into your heating system via a heat exchanger. Powered by electricity rather than gas or oil, a ground source heat pump produces significantly more energy than it consumes, making it one of the most efficient and environmentally friendly heating solutions available for domestic properties.

How does a ground source heat pump work?

A ground source heat pump works by circulating a mixture of water and antifreeze through a network of pipes buried in the ground, either horizontally in a ground loop or vertically in a borehole. As the fluid passes through the pipes, it absorbs heat stored in the earth and carries it back to the heat pump unit. The heat pump then compresses this energy to raise it to a usable temperature for your heating system and hot water cylinder, delivering efficient, reliable warmth throughout your home all year round.

Ground source heat pumps how do they work?

Ground source heat pumps extract thermal energy from the ground using buried pipework and transfer it into your home's heating system. The ground maintains a relatively consistent temperature throughout the year, typically between 8 and 12 degrees Celsius in the UK, which gives ground source systems a reliable and stable heat source regardless of the season. This consistency makes them particularly efficient compared to air source systems in colder months, and ideal for rural properties across Cumbria and Lancashire looking for long-term renewable heating performance.

What does a ground source heat pump look like?

The indoor unit of a ground source heat pump is typically similar in size to a large fridge or boiler and is installed inside your home, usually in a utility room or plant room. Outside, the ground pipework is either buried horizontally across your land in a series of trenches or installed vertically in a borehole, meaning there are no visible external components once the groundworks are complete. This makes ground source heat pumps one of the most discreet renewable heating options available, with minimal visual impact on your property.

Are ground source heat pumps better than air source?

Ground source heat pumps are generally more efficient than air source systems because the ground maintains a more stable temperature than the outside air, particularly in winter. This means a ground source system can deliver more consistent performance throughout the year. However, they require more land or a suitable borehole and typically involve higher upfront installation costs. For rural properties with sufficient outdoor space, a ground source heat pump is often the superior long-term investment, while air source systems are more practical for properties with limited land.

Are ground source heat pumps worth it?

For rural and off-grid properties currently on oil heating, a ground source heat pump is absolutely worth serious consideration. Running costs are typically lower than oil or electric heating, and with the Boiler Upgrade Scheme offering up to £7,500 towards installation costs, the financial barrier has been significantly reduced. Combined with a lifespan of 20 years or more with proper maintenance, and the long-term trajectory of rising oil prices, a ground source heat pump represents a strong long-term investment for the right property.

How efficient are ground source heat pumps?

Ground source heat pumps are among the most efficient heating systems available, typically achieving a coefficient of performance of between 3 and 4. This means that for every unit of electricity consumed, the system produces 3 to 4 units of heat. This efficiency is largely due to the stable ground temperature from which they extract heat, which remains consistent throughout the year regardless of weather conditions. In a well-insulated property with a correctly sized system, a ground source heat pump can reduce heating energy consumption dramatically compared to oil or electric heating.

How reliable are ground source heat pumps?

Ground source heat pumps are highly reliable heating systems, with fewer moving parts than traditional boilers and no exposure to outdoor weather conditions. A well-installed system from a reputable brand will typically operate for 20 years or more with minimal issues, provided it receives annual servicing to keep it running at peak efficiency. As MCS certified installers who carry out every installation personally, we take great care to ensure every system we fit is correctly designed and installed to maximise long-term reliability.

How do central heating systems work?

A central heating system works by generating heat from a single source, whether that is a boiler, heat pump, or other heat generator, and distributing it throughout your home via a network of pipework connected to radiators or underfloor heating. A ground source heat pump can serve as the heat source for a complete central heating system, delivering low-temperature heat efficiently to every room in your property. When paired with underfloor heating, which operates at lower flow temperatures, a ground source heat pump performs at its most efficient.

Can a heat pump replace an oil boiler?

Yes, a ground source heat pump can absolutely replace an oil boiler and is one of the most popular reasons homeowners across Cumbria and Lancashire contact us. Switching from oil to a ground source heat pump eliminates your dependence on oil deliveries, reduces your carbon footprint, and can significantly lower your long-term running costs. With the Boiler Upgrade Scheme offering £7,500 towards the cost of installation, or £9,000 specifically for properties replacing an oil boiler, the financial case for switching has never been stronger.

Plumbers you can trust

Accredited, insured and only using the best brands

Every installation we carry out uses the best brands and is backed by industry-leading accreditations and full public liability insurance.

MCS certified installers

MCS certified ground source heat pump installers with the expertise to design and deliver systems that perform across the North West

We are a BPEC qualified, MCS certified team of renewable heating specialists based in Carnforth, covering domestic properties across Cumbria, Lancashire and the Lake District. Every ground source heat pump installation we carry out starts with a thorough site survey and ends with full MCS certification and a personal handover from the engineers who did the work. We have the technical knowledge to design systems correctly, the accreditations to back it up, and the care and attention that only a small, family-run team can provide.

"Dan surveyed our property and was completely upfront about what was involved. No hard sell, just honest advice about whether a ground source system was the right choice for our land and our home. It was, and the installation exceeded our expectations."

Fiona L
Related services

Explore our other renewable heating and plumbing services

Ground source heat pumps work best as part of a well-designed heating system. Whether you are pairing your installation with underfloor heating for maximum efficiency, considering air source as an alternative for a property with limited land, or wanting to protect your investment with regular annual servicing, we offer the specialist services that complement every ground source heat pump installation.

Air source heat pumps

For properties with limited outdoor land, an air source heat pump offers an equally effective renewable heating solution. We install Vaillant and Alpha air source systems across Cumbria and Lancashire as a practical alternative to ground source installation.

Heat pump servicing

Annual servicing is essential to protect your ground source heat pump investment and maintain peak efficiency. Our dedicated heat pump servicing keeps your system running reliably and helps extend its lifespan well beyond the standard 20 years.

Underfloor heating

Underfloor heating is the ideal partner for a ground source heat pump, operating at the lower flow temperatures that heat pumps produce most efficiently. We design and install wet underfloor heating systems for renovations, extensions and new builds across the north west.

Get a quotation from our friendly plumbers today

Whether you have a question, need honest advice, or are ready to get a project underway, just give us a call or drop us a message. You will speak directly with the people doing the work, any day of the week.