Air source heat pumps · Hertfordshire
Get your free heat pump estimate.
Designed around your home. Completely free. Find out what an air source heat pump could look like for your property, what it could cost, and whether you may qualify for available government support.
Proper heat-loss survey · Honest pricing · Help with the £7,500 grant
We work with
Leading heat pump manufacturers and trusted technology partners.
Our current offer
Save 50% on your heat-loss survey & system design
Thinking about replacing your existing heating with an air source heat pump? Start with a professional heat-loss survey and complete system design at half the usual cost. We'll assess your home properly, calculate its heating requirement, and design a system around how your property actually performs.
Book your free consultationYour survey includes
A proper assessment, not a quick look
- An on-site assessment by a trained 8energy specialist
- A full room-by-room heat-loss calculation
- A bespoke heat pump system design
- Recommended heat pump size and specification
- A radiator and emitter assessment
- Recommendations tailored to your property
- A clear, detailed proposal
- Practical recommendations for any required property improvements
Intelligent system design
A better heat pump starts with a better design
Heat pumps work best when the entire heating system is designed correctly — which is why we analyse your property before recommending equipment. It helps identify what your home genuinely needs, avoiding unnecessary upgrades, oversized equipment and excessive installation costs.
1. We assess your home
We calculate how much heat your property loses and how much energy it needs to stay comfortable.
2. We design the right system
Your heat pump, radiators, hot-water requirement and controls are designed around your property.
3. Our engineers install it properly
Experienced installers bring the design to life and commission the system for efficient operation.
4. We support you afterwards
We can help monitor performance, optimise settings and keep your system running as intended.
Quality without the traditional price tag
A modern heat pump can cost less than you'd expect
With the Boiler Upgrade Scheme contributing towards eligible installations, moving from a traditional boiler to a modern heat pump may cost considerably less than many homeowners expect.
Our focus is simple: design the right system, remove unnecessary work, and make installation as straightforward as possible.
What our customers say
Clear and easy, from first call to switch-on
From the first conversation through to installation, our aim is to make the whole process clear. You'll know what's being installed, why it's recommended, and what to expect from the system before any work begins.
Real customer reviews will appear here as we complete installations — we won't post anything we haven't earned.
Standards & partners
Installed to recognised industry standards
Our installations are carried out in line with recognised industry standards and the relevant certification requirements for the work. We work with established manufacturers and trusted technology partners to deliver reliable, efficient heating systems.
MCS certification is required to access the Boiler Upgrade Scheme grant. We'll confirm the certification route for your installation up front — we won't assume eligibility.
Meet your local heat pump specialists
Properly designed. Professionally installed.
8energy specialises in modern home energy and heating. We design and install air source heat pumps for homeowners looking to reduce reliance on traditional heating and improve their home's long-term efficiency.
Every installation begins with proper system design — we calculate your home's heating requirement, assess your existing system, and specify equipment that suits the property rather than fitting a standard package. From first assessment to installation and aftercare, our goal is to make the move to a heat pump simple and transparent.
Why choose 8energy?
- Heat pump specialists
- Detailed system design
- MCS-compliant installations where applicable
- Local installation team
- Grant support
- Full installation and commissioning
- Ongoing support and aftercare
What will a heat pump cost?
Many homeowners pay far less than they expect
The total cost depends on the size of your property, its heating requirement, and whether any changes are needed to your existing heating. That's why we design each system individually.
Your estimate will clearly show
- Heat pump equipment
- Installation
- Hot-water requirements
- Radiator or emitter upgrades where required
- Controls
- Grant contribution
- Your estimated contribution
Up to £7,500 government support
The Boiler Upgrade Scheme, explained straight
Eligible homeowners may be able to receive support through the Boiler Upgrade Scheme towards an air source heat pump. We can help you understand whether your property is eligible and guide you through the process. Where it applies, the grant is taken into account when we prepare your final proposal.
Additional green home funding
Some banks and mortgage providers also offer incentives, cashback or preferential finance for improving a home's energy efficiency. Availability varies between providers — if relevant, we can help identify options worth investigating alongside your installation.
Our process
A simple route from estimate to installation
We've designed our process to remove as much complexity as possible.
Request your free estimate
Complete the short form and tell us a little about your home and current heating. Our team will review it and get in touch.
Initial design consultation
We'll discuss your property, current heating and what you want to achieve, then prepare an initial system recommendation and estimated cost.
Home survey & full system design
A member of our team visits to complete the detailed assessment — measurements and heat-loss calculations — before producing your final design and proposal. You'll review it and discuss any changes before proceeding.
Grant application
If your installation qualifies for the Boiler Upgrade Scheme, we guide you through the required process and paperwork.
Installation
Our engineers install, commission and test your new system. Most residential installs take several days depending on the property. Once it's running correctly, we show you how to use it and answer your questions.
More homes than you'd think
Heat pumps can work in more homes than you might think
Modern heat pumps can be installed successfully across a wide range of property types. The key is proper design.
Conservation areas
Living in a conservation area doesn't automatically rule a heat pump out. There may be extra planning or placement considerations, and we can help you understand the options for your property.
Landlords
Improving a rental's efficiency can cut running costs, improve tenant comfort and help prepare for future energy requirements — often as part of a wider upgrade alongside insulation, solar and more.
Renovating your home
A renovation is one of the best times to install a heat pump — radiators, pipework, insulation and hot water can all be designed properly from the start.
Terraced homes
Limited outdoor space doesn't necessarily rule a heat pump out. There are multiple sizes and positioning options, and we'll assess the most practical location at your survey.
Older properties
Older homes can be suitable too. The important thing is understanding the property's heat loss and designing the system accordingly — and explaining exactly why any improvement is needed.
Not sure about yours?
Tell us about your property and we'll give you a straight answer on whether a heat pump makes sense — before you commit to anything.
Get my free estimateWhy proper design matters
A heat pump shouldn't be picked by the size of your house
Getting these details right makes a major difference to comfort, efficiency and running costs. A good system considers:
- Property heat loss
- Insulation levels
- Window performance
- Existing radiators
- Hot-water demand
- Flow temperatures
- Outdoor unit position
- Noise considerations
- Electricity tariff
- Controls
- Future solar or battery
Thinking about a heat pump?
Start with a free home estimate
Tell us about your property and we'll help you understand:
- Whether a heat pump is suitable
- What size system you may need
- What changes could be required
- Whether you may qualify for the £7,500 grant
- What the likely installation cost could be
- What the next steps would look like