Air Source Heat Pumps

Switch to renewable heating with professional air source heat pump installation, servicing, and repair from Mansfield Mechanical Ltd. Our OFTEC certified engineers provide expert heat pump solutions for both domestic and commercial properties across Brighton, Chichester, South London, Portsmouth, and Eastbourne, helping you reduce energy bills and carbon emissions with reliable, efficient renewable heating.

Expert Air Source Heat Pump Installation

Air source heat pumps are one of the most efficient and environmentally friendly heating solutions available, extracting heat from the outside air to warm your property even in cold weather. With government incentives available through schemes like the Boiler Upgrade Scheme, there's never been a better time to make the switch to renewable heating.

Our OFTEC certified engineers specialise in air source heat pump installations for both domestic homes and commercial buildings including schools, healthcare facilities, and offices. We handle every aspect of the installation process, from initial surveys and system design through to commissioning, handover, and ongoing maintenance.

Choosing the Right Heat Pump System

Not all properties are suitable for air source heat pumps, and proper sizing is critical for performance and efficiency. We conduct thorough property surveys to assess your heating requirements, insulation levels, existing radiators or underfloor heating, available space for the outdoor unit, and electrical supply capacity.

We'll recommend the most suitable system type – whether that's an air-to-water heat pump for radiators and underfloor heating, or an air-to-air system for properties requiring both heating and cooling. Our honest advice ensures you only proceed if a heat pump is the right solution for your property.

Professional Installation Process

Heat pump installation requires careful planning and expert workmanship. We position outdoor units to maximise efficiency whilst minimising noise impact, install appropriate cylinder systems for hot water storage, upgrade radiators if necessary to low-temperature models, integrate with existing heating systems where required, and ensure all electrical work complies with current regulations.

Our installations meet all Microgeneration Certification Scheme (MCS) requirements where applicable, ensuring eligibility for government incentives and feed-in tariffs. We provide full commissioning documentation, warranty registration, and comprehensive handover training so you understand how to operate your new system efficiently.

Air Source Heat Pump Servicing

Regular servicing is essential to maintain your heat pump's efficiency, performance, and manufacturer's warranty. We recommend annual servicing for domestic systems and more frequent checks for commercial installations depending on usage levels.

What Our Service Includes

Our comprehensive heat pump service covers inspection of the outdoor unit including coils, fans, and refrigerant levels, checking electrical connections and controls, testing defrost cycles and safety features, examining indoor components including circulation pumps and expansion vessels, verifying system pressures and temperatures, and cleaning filters and checking for debris or obstructions.

Following each service, you'll receive a detailed report outlining the work completed, system performance data, and any recommendations for improvements or repairs. This documentation is essential for maintaining your warranty and provides valuable records for future reference.

OFTEC Certification

All our engineers are OFTEC certified specifically for air source heat pump work. This certification demonstrates we have the specialist knowledge and training to work safely and effectively on heat pump systems, which differ significantly from traditional boilers in their operation and maintenance requirements.

Heat Pump Repairs

Heat pumps are generally reliable, but faults can occur. Common issues include reduced heating output, unusual noises from the outdoor unit, frequent cycling on and off, error codes on the controller, or frozen outdoor coils in cold weather.

Our experienced engineers diagnose and repair all types of heat pump problems quickly and effectively. We carry diagnostic equipment and common spare parts, often allowing us to complete repairs on the first visit.

Emergency Support

We understand that heating failures can't wait. If your heat pump stops working, call us on 07908 724702 for prompt assistance. We'll provide telephone troubleshooting where possible and arrange an engineer visit as quickly as we can to restore your heating.

Honest Repair Advice

If your heat pump develops a major fault, we'll provide honest advice about repair costs versus replacement. Heat pumps typically last 15-20 years with proper maintenance, but towards the end of their lifespan, expensive repairs may not represent good value.

Both Domestic and Commercial

We install, service, and repair air source heat pumps for homeowners across Brighton and Chichester, and for commercial clients including schools, healthcare facilities, and offices across South London, Portsmouth, and Eastbourne. Whether you're considering renewable heating for your home or looking to decarbonise your commercial building, we're here to help.

Call us on 07908 724702 to discuss air source heat pump installation, servicing, or repairs.

Why Choose Mansfield Mechanical?

Trusted heating engineers delivering expert workmanship across Sussex and South London.

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Fully Accredited – Gas Safe, OFTEC and CIPHE certified

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Decades of Experience – Expert knowledge across all heating systems

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Personal Service – The same reliable engineers every time

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Sector Specialists – Trusted by schools, healthcare, and homeowners

The Mansfield Mechanical Difference

A smaller, professional team that genuinely cares about getting the job done right.

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Reliable Engineers – We show up when we say we will, every time

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Honest Advice – No unnecessary work, no hidden costs

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Flexible Scheduling – We work around you and your property

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All Systems Covered – Gas, oil, heat pumps, and solar thermal

Why Choose Mansfield Mechanical?

8

Fully Qualified Engineers

3

Industry Accreditations

3

Regions Covered

20+

Years of Combined Experience