Air Source Heat Pump Installation in West Sussex, Surrey and Hampshire

Paine Manwaring provides professional air source heat pump installation for homes and commercial properties across West Sussex, Surrey and Hampshire, helping property owners adopt efficient renewable heating systems that reduce reliance on traditional fossil fuels.

Air source heat pumps extract heat energy from the outside air to provide reliable heating throughout the year. Depending on the system selected, they can provide heating and hot water through radiators or underfloor heating, or deliver warm and cool air directly into the property for year-round temperature control.

Whether you are replacing an older heating system, improving energy efficiency or considering renewable heating for a new project, our team can guide you through the process and recommend the most suitable solution for your property.

Engineer installing an air source heat pump outdoors while wearing safety gear, with the unit open and components visible.

Domestic and Commercial Air Source Heat Pump Installations

Paine Manwaring provides complete air source heat pump installation services for domestic and commercial properties. Our engineers carry out property assessments, prepare tailored system designs and manage all aspects of installation and commissioning.

We install both:

  • air-to-water heat pump systems, which work with radiators, underfloor heating and hot water systems; and
  • air-to-air heat pump systems, which deliver warm or cooled air directly into internal spaces

This allows us to recommend a system based on how your building is used, the existing heating setup and your long-term energy goals.

We provide clear advice on:

  • system suitability
  • property insulation requirements
  • radiator and underfloor heating compatibility
  • air-to-air heating and cooling options
  • ongoing servicing and maintenance

Understanding Air Source Heat Pump Systems

Air source heat pumps are available in different configurations depending on how heat is distributed throughout the building.

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Air-to-Water Heat Pumps

Air-to-water systems transfer heat into a wet central heating system, supplying radiators, underfloor heating and domestic hot water. These are commonly installed in homes replacing gas or oil boilers and may qualify for government grant support through the Boiler Upgrade Scheme.

Air-to-Air Heat Pumps

Air-to-air systems transfer heated or cooled air directly into rooms using indoor fan units. They are often selected for properties without existing radiators or where both heating and cooling are required from one system.

While air-to-air systems do not provide domestic hot water, they can offer:

  • lower installation disruption
  • fast heating response
  • efficient cooling in summer
  • flexible room-by-room temperature control

Our engineers can advise which system is most suitable based on your property layout, heating requirements and budget.

Domestic Installations for Homes and Landlords

For some homes, particularly properties without existing wet central heating systems, extensions, loft conversions or spaces where cooling is also beneficial, an air-to-air heat pump may offer a practical alternative. These systems provide efficient heating in winter and cooling during warmer weather using discreet indoor units.

Enquiry and Initial Details

We begin by gathering details about your property and existing heating system, along with your goals for the installation. This allows us to recommend the air source heat pump setup that best suits your home or building.

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Survey

A site survey is completed to review outdoor unit placement, system integration and any technical requirements within the property.

Fixed-Price Proposal

You receive a clear, fixed-price proposal that outlines the system design and installation details, with no hidden extras.

Installation and Handover

Our engineers manage the full installation process, including system setup and commissioning. Once complete, we confirm performance, explain how the system operates and ensure your property is left clean and tidy.

Aftercare & Support

We remain available to provide support, answer questions and offer servicing to help maintain long-term system efficiency.

Commercial Installations for Schools, Healthcare, and Businesses

Air-to-air heat pump systems are also widely used in offices, retail spaces, healthcare environments and educational buildings where fast, controllable heating and cooling are important. These systems can often be installed with less disruption than traditional wet heating systems and allow flexible temperature control across multiple areas.

Enquiry and Initial Details

We discuss your heating requirements, building layout and operational needs to identify the most suitable commercial air source heat pump system.

Site Assessment and Feasibility

Our engineers assess the property to confirm system placement, electrical capacity and integration with existing heating or hot water systems.

Proposal and Guidance

You receive a detailed, fixed-price proposal that outlines the cost of the system design, installation process and expected performance. We also provide guidance on available grant schemes where applicable.

Installation and Handover

We manage the full installation, from outdoor unit placement to system commissioning, while minimising disruption to your operations.

Aftercare and Support

Our team supports long-term operation with servicing options, performance checks and ongoing technical advice.

The suitability of an air source heat pump depends on factors including:

  • property insulation levels
  • available outdoor space
  • existing heating systems
  • hot water requirements
  • heating and cooling preferences

Air-to-water systems are often suited to homes replacing traditional boiler systems, while air-to-air systems can work particularly well in:

  • offices
  • retail units
  • apartments
  • extensions
  • loft conversions
  • properties without wet central heating

Our engineers carry out detailed assessments to recommend the most suitable solution for long-term performance and efficiency.

Engineer showing and inspecting the internal components of an air source heat pump unit while speaking with a customer.

Air Source Heat Pump Costs, Grants, and Savings

Understanding the cost of an air source heat pump and the financial support available is an important part of planning your installation. While every project is different, air source heat pumps offer a long-term approach to heating that can reduce running costs and support lower carbon emissions when installed correctly.

Typical Air Source Heat Pump Installation Cost

The air source heat pump cost varies depending on factors such as property size, insulation levels, the existing heating system, and the type of heat pump selected. As a general guide, air source heat pump installation typically falls between £11,000 and £15,000 before any grants are applied.

A detailed property assessment allows us to confirm system sizing, equipment requirements, and installation complexity before providing a clear, fixed-price proposal. This ensures the final air source heat pump cost is accurate and specific to your property, rather than based on rough estimates.

Running Costs vs. Gas Boilers

Air source heat pump running costs can be more economical than traditional gas boilers because these systems use electricity to move heat rather than generate it, making them significantly more energy efficient in everyday use. With the correct design and installation, an air source heat pump can deliver up to four times more heat energy than the electricity it consumes.

When comparing an air source heat pump vs gas boiler, many properties see lower ongoing energy use, particularly in well-insulated homes. Running costs can be reduced further when the system is paired with renewable electricity such as solar PV. Homeowners also often notice more consistent indoor temperatures, as heat pumps maintain steady warmth rather than cycling on and off.

Both air-to-water and air-to-air systems operate by transferring heat rather than generating it directly, making them significantly more energy efficient than conventional electric heating systems.

Available Grants and Boiler Upgrade Scheme

Homeowners and self-builders may be eligible for financial support through the Boiler Upgrade Scheme, which currently offers an air source heat pump grant of between £7,500 and £9,000 towards installation. This grant applies when replacing an existing fossil fuel heating system and is subject to eligibility criteria such as property ownership and a valid EPC.

As an approved installer, Paine Manwaring manages the air source heat pump grant application on your behalf. The grant is applied directly to the installation cost, meaning there is no need to pay the full amount upfront and reclaim it later. The Boiler Upgrade Scheme is currently scheduled to run until March 2028, providing ongoing support for homeowners considering renewable heating.

It is important to note that government grants such as the Boiler Upgrade Scheme currently apply to qualifying air-to-water heat pump systems rather than air-to-air systems, as air-to-air installations do not provide domestic hot water. However, air-to-air heat pumps can still offer a cost-effective renewable heating solution due to lower installation costs, reduced disruption and efficient year-round operation.

Why Choose Paine Manwaring for Your Air Source Heat Pump Installation?

We install and maintain both air-to-water and air-to-air heat pump systems across domestic and commercial environments. When you’re investing in an air source heat pump, you want to know the installation is in safe hands. Our team focuses on clear guidance, quality workmanship and reliable support from the very beginning.

Three engineers reviewing technical drawings together while wearing high-visibility vests.

Reliable Heating Solutions

Air source heat pumps are installed and configured to operate efficiently throughout the year, helping maintain consistent performance while reducing energy costs and carbon emissions.

A Partner You Can Rely On

Paine Manwaring supports domestic and commercial clients across West Sussex, Surrey and Hampshire, with dependable renewable heating services.

Personalised System Design

Each installation begins with a detailed assessment of your property and heating requirements, ensuring the air source heat pump selected is the right fit for your home or business.

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Trusted and Certified Specialists

Installations are completed by qualified engineers working to recognised industry standards and current regulations for safe, efficient performance.

Efficient, High-Quality Installations

The full installation process is managed by our in-house team, with tidy workmanship and a focus on long-term reliability and performance.

Clear Communication and Support

Every stage of the project is explained clearly, with transparent pricing and ongoing guidance and maintenance support available whenever you need it.

Contact Us for Air Source Heat Pump Installation

If you are considering air source heat pump installation for your home or business, our team can guide you through every stage. We assess system suitability, explain the options available and provide clear recommendations based on your property’s heating requirements.

With extensive experience in renewable heating and a long-standing reputation for reliable service across West Sussex, Surrey and Hampshire, Paine Manwaring ensures your installation is completed safely and efficiently. Contact us to discuss your project and receive a detailed proposal tailored to your property.

01903 237522

enquiries@painemanwaring.co.uk