Heat Pump & Air Conditioning
Services Across Hampshire
Covering every corner of Hampshire — from Basingstoke to the south coast. Expert heat pump and air conditioning services backed by 15 years of hands-on experience.
Based in Basingstoke, covering all of Hampshire. Over 500 systems serviced across the county.



Heat Pump & Air Conditioning Services in Hampshire
Hampshire is our home county. Based in Basingstoke, we serve residential and commercial properties from the northern border with Berkshire down through Winchester to the south coast. We understand the diverse property types across Hampshire — from Georgian townhouses in Winchester to modern developments in Basingstoke and rural properties throughout the Test Valley.
The county's mix of urban centres and rural villages creates varying demands for heat pump and air conditioning services. Properties in towns benefit from proximity to infrastructure, while rural homes often have larger heating loads and may rely on off-grid solutions where heat pumps offer a genuine alternative to oil heating.
We regularly attend properties across the entire county, with typical response times of 1–2 hours for most Hampshire locations. For emergencies in remote areas, we communicate realistic timescales upfront and attend as quickly as possible.
Hampshire's growing commercial sector — particularly around Basingstoke, Winchester, Southampton, and the M3/M27 corridor — requires professional air conditioning installation and maintenance. We provide F-Gas compliant services to businesses of all sizes across the county.
Services Available in Hampshire
Air Source Heat Pump Repair
Fast, specialist fault finding that resolves the root cause — not just the symptom.
Heat Pump Servicing & Maintenance
Annual servicing that maintains efficiency, prevents breakdowns, and protects your warranty.
Heat Pump Installation
Correctly sized systems, professionally installed and commissioned to perform from day one.
Domestic Air Conditioning
Quiet, efficient cooling for your home — designed around your space, not off a shelf.
Commercial Air Conditioning
F-Gas compliant climate control for offices, retail, and commercial premises.
Swimming Pool Heat Pumps
Repair, servicing, and supply of pool heat pumps to extend your swimming season.
Commissioning & Optimisation
Measurable performance improvements for underperforming heat pump systems.
Emergency Repairs (24/7)
No heating or hot water? Fast emergency response with high first-visit fix rates.
System Upgrades & Retrofits
Upgrade emitters, controls, and cylinders to unlock your heat pump's full potential.
Annual Maintenance Contracts
Priority emergency response, planned servicing, and compliance documentation — one annual payment.
Why Choose Appian Heat Pumps in Hampshire?
As a Hampshire-based business, we have built our reputation through word-of-mouth referrals from satisfied customers across the county. We do not operate from a distant call centre — you speak directly to the engineer who will attend your property.
Our 15 years of experience includes extensive work across Hampshire's diverse property stock. We have installed and serviced heat pumps in everything from thatched cottages in the Test Valley to high-specification new builds in Basingstoke, and commercial systems in Winchester's historic city centre.
Hampshire's climate — damp winters, foggy mornings, and increasingly warm summers — creates specific requirements for heat pump configuration and air conditioning design. We configure systems with these local conditions in mind, not generic national settings.
We are REFCOM registered and F-Gas certified, with Mitsubishi Electric accredited installer status. This means access to extended warranties and the technical support network of a leading manufacturer.
Common Heat Pump Issues in Hampshire
Hampshire has a wide variety of property ages and construction types. Older properties in rural areas and market towns often have solid walls, limited insulation, and existing heating systems designed for high-temperature operation. Heat pump installations in these properties require careful emitter sizing and often benefit from hybrid approaches or targeted insulation improvements.
New-build developments across the county — particularly around Basingstoke, Eastleigh, and Fareham — increasingly feature heat pumps as standard. Many of these systems are installed to minimum specification and never properly commissioned, leading to higher-than-necessary running costs.
The county's hard water, particularly in the chalk areas of central and east Hampshire, causes scaling issues in heat pump hot water cylinders and swimming pool heat exchangers. Annual servicing with appropriate water treatment prevents efficiency degradation.
Rural properties in Hampshire often experience power supply variations and single-phase limitations that can affect heat pump performance. We assess the electrical supply as part of every installation and advise on upgrades where needed.
Swimming pools are common in Hampshire's larger rural properties. Pool heat pumps in these locations face specific challenges including exposure to wind, distance from the property's electrical supply, and the need for robust winterisation in the county's cold, damp winters.
How We Work
Initial Contact
Call or message us. We discuss your requirements and arrange a convenient time to attend.
On-Site Assessment
We inspect your system, diagnose any issues, and provide a clear explanation and transparent quote.
Professional Execution
Work is carried out to the highest standard using manufacturer-grade parts and F-Gas compliant processes.
Testing & Verification
Every repair, service, or installation is tested and verified before we leave your property.
Documentation & Follow-Up
You receive full documentation and ongoing support. We are always available for follow-up questions.
Frequently Asked Questions — Hampshire
Hampshire's Trusted Heat Pump Specialist
Local expertise, county-wide coverage. From Basingstoke to the coast, we deliver expert heat pump and air conditioning services.
Most enquiries responded to within 2 hours
