--- title: "Appian Heat Pumps | Heat Pump & AC Experts Hampshire" description: "Expert air source heat pump installation, repair & servicing across Hampshire. 15+ years experience. F-Gas certified. 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Professional, tidy work and the system runs perfectly." }, { "@type": "Review", "author": { "@type": "Person", "name": "Mark & Lisa D." }, "reviewRating": { "@type": "Rating", "ratingValue": "5", "bestRating": "5" }, "reviewBody": "Our heat pump was underperforming for months. Craig optimised the system and our energy bills dropped noticeably." } ] }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How much does a heat pump repair cost?", "acceptedAnswer": { "@type": "Answer", "text": "Repair costs depend on the fault and parts required. We provide a clear diagnosis and transparent quote before any work begins — no hidden charges." } }, { "@type": "Question", "name": "Do you work on all heat pump brands?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. We service and repair all major air source heat pump brands including Mitsubishi, Daikin, Samsung, Vaillant, Grant, and more." } }, { "@type": "Question", "name": "How often should my heat pump be serviced?", "acceptedAnswer": { "@type": "Answer", "text": "We recommend annual servicing to maintain peak efficiency, prevent breakdowns, and protect your manufacturer warranty." } }, { "@type": "Question", "name": "Do you offer emergency callouts?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. We provide 24/7 emergency callout services across Hampshire and surrounding areas. Call 07481 552059 any time." } }, { "@type": "Question", "name": "What areas do you cover?", "acceptedAnswer": { "@type": "Answer", "text": "We cover Basingstoke, Hampshire, Berkshire, Surrey, Wiltshire and surrounding areas including Reading, Winchester, Guildford, Farnborough and more." } }, { "@type": "Question", "name": "How much does heat pump installation cost in Hampshire?", "acceptedAnswer": { "@type": "Answer", "text": "A typical air source heat pump installation in Hampshire ranges from around £8,000 to £14,000 fully fitted, depending on system size, emitters and controls. Air conditioning starts from £1,100 fully installed. Every quote is fixed and itemised." } }, { "@type": "Question", "name": "How quickly can you respond to a callout?", "acceptedAnswer": { "@type": "Answer", "text": "Most enquiries get a reply within two hours during working hours. Same-week visits are the norm across Hampshire, Berkshire and Surrey, and our mobile line is answered 24/7 for genuine emergencies." } } ] } ] --- [ Special Offer Air Conditioning Fully Installed from £1,100 → ](/contact) 12 Appian Way, Chineham, Basingstoke, RG24 8BH Fastest reply → [07481 552059](tel:07481552059)| [01256 672332](tel:01256672332) [![Appian Heat Pumps](/assets/logo-DXHDe5EY.png)](/) Services Service Areas [About](/about)[Our Work](/our-work)[Blog](/blog)[Reviews](/reviews)[Contact](/contact) Call now — fastest reply [07481 552059](tel:07481552059)[Landline: 01256 672332](tel:01256672332) [Request Estimate](/contact) [Call 07481 552059 Fastest reply ](tel:07481552059)[Get Estimate](/contact) ![A cosy Hampshire family home at golden hour with a tidy air-source heat pump installed by Appian](/assets/hero-home-warm-5Bm2P6GM.jpg) Booking estimates this week across Hampshire # Heat pumps that just work. Installed, fixed and looked after by your local Hampshire team. Whether you need a new system, a same-week repair, or someone reliable to keep yours running sweet — we'll sort it. No jargon, no pressure, just honest work from engineers your neighbours already trust. - Free, no-obligation home estimate - Fixed prices — quote stands, no surprises - Same-week repairs on most callouts [Get my free estimate →](/contact)[or call 07481 552059 ](tel:07481552059) Rated 5.0 by Hampshire homeowners · [read reviews](/reviews) ## Tell us what you need Quick form, real human reply — usually within a couple of hours. 15+ Years Experience F-Gas Certified Hampshire & Surrounding Areas Emergency Callouts ![REFCOM F-Gas Certificated](/assets/refcom-badge-Bo6YwTLs.png)![Mitsubishi Electric Accredited Installer](/assets/mitsubishi-badge-e1lhTUMA.jpg)![Ecodan Renewable Heating Technology](/assets/ecodan-badge-DKEvMTX0.jpg) ## Our Services From installation to emergency repair, we deliver specialist heat pump and air conditioning services you can depend on. [ ![Heat pump diagnostic inspection with refrigerant manifold gauges](/assets/work-82-IeQDPef9.jpeg) ### Heat Pump Repair Fast, accurate fault finding for underperforming or broken heat pump systems. We diagnose and fix the issue — not just the symptoms. ](/services/heat-pump-repair)[ ![Heat pump evaporator coil cleaning during annual servicing](/assets/work-70-obl9609d.jpeg) ### Servicing & Maintenance Planned servicing to keep your heat pump running at peak efficiency. Reduce breakdowns and extend system life. ](/services/heat-pump-servicing)[ ![Mitsubishi Ecodan air source heat pump installed at Hampshire property](/assets/work-1-yCIVMH7-.jpeg) ### Heat Pump Installation Correctly sized, professionally installed, and commissioned to perform from day one. All major brands. ](/services/heat-pump-installation)[ ![Wall-mounted split air conditioning unit in a Hampshire living room](/assets/work-4-B-xosteY.jpeg) ### Domestic Air Conditioning Professional design and installation of air conditioning for your home. Stay cool in summer with minimal running costs. ](/services/domestic-air-conditioning)[ ![Commercial air conditioning condensers installed at industrial building](/assets/work-71-u8geDNO3.jpeg) ### Commercial Air Conditioning Reliable air conditioning for offices, retail, and commercial premises. F-Gas compliant installation and servicing. ](/services/commercial-air-conditioning)[ ![Swimming pool heat pump repair with refrigerant recovery equipment](/assets/work-76-yR3TKTG4.jpeg) ### Pool Heat Pump Repair Specialist diagnosis and repair for swimming pool heat pumps. All major brands, titanium heat exchanger expertise. ](/services/swimming-pool-heat-pump-repair)[ ![Pool heat pump fan unit ready for annual servicing](/assets/pool-servicing-hero-C7_VFSfV.jpg) ### Pool Heat Pump Servicing Annual servicing that keeps your pool heat pump efficient and prevents mid-season breakdowns. ](/services/swimming-pool-heat-pump-service)[ ![Pool heat pump installed beside residential outdoor swimming pool](/assets/pool-supply-hero-Jugsqy5x.jpg) ### Pool Heat Pump Supply Correctly sized pool heat pumps supplied and installed. Extend your swimming season efficiently. ](/services/swimming-pool-heat-pump-supplier)[ ![Refrigerant manifold gauges during heat pump commissioning](/assets/work-19-BKdzfXzA.jpeg) ### Commissioning & Optimisation Fix underperforming systems. We measure actual COP, identify inefficiencies, and deliver measurable improvements. ](/services/commissioning-optimisation)[ ![Emergency heat pump repair — expansion valve replacement on site](/assets/work-65-DyOaOchF.jpeg) ### Emergency Repairs (24/7) System down? We offer 24/7 emergency callouts to get your heating or cooling back online fast. ](/services/emergency-repairs)[ ![Heat pump buffer tank and circulation pump arrangement in utility room](/assets/work-35-l9yRXuDs.jpeg) ### System Upgrades & Retrofits Upgrade emitters, controls, and cylinders to unlock the full efficiency of your existing heat pump. ](/services/system-upgrades-retrofits)[ ![Smart thermostat on wall for heat pump control integration](/assets/smart-thermostat-hero-D-lggfrQ.jpg) ### Smart Thermostat Integration The right thermostat, correctly configured for your heat pump — not a generic gadget that fights efficiency. ](/services/smart-thermostat-integration)[ ![Heat pump flow meter and pressure gauge readings during health check](/assets/work-49-BPWOsTSM.jpeg) ### Health Checks & Reports Independent performance assessment with measured COP data and prioritised recommendations. ](/services/health-checks)[ ![Commercial air conditioning maintenance with filters removed for F-Gas inspection](/assets/work-64-CtwNDPiC.jpeg) ### F-Gas AC Servicing F-Gas certified air conditioning servicing with full compliance documentation. REFCOM registered. ](/services/fgas-air-conditioning-servicing)[ ![Ecodan heat pump being serviced as part of annual maintenance contract](/assets/work-79-BVwJx1gb.jpeg) ### Annual Maintenance Contracts Planned servicing, priority emergency response, and F-Gas compliance — one annual payment, total peace of mind. ](/services/annual-maintenance-contracts) ## Why Hampshire Homeowners Choose Appian Heat Pumps We don't just fix heat pumps — we make them perform the way they were designed to. From [repairs](/services/heat-pump-repair) to [system optimisation](/services/commissioning-optimisation), here's what sets us apart. ### Accurate Diagnosis, Not Guesswork We identify the root cause of underperformance — so you're not paying for repeat visits or unnecessary parts. ### 15+ Years of Specialist Experience Craig Ball started in commercial heating and ventilation, then air conditioning, before specialising exclusively in heat pumps. ### Results You Can Measure Our commissioning and optimisation work delivers measurable improvements in system output and energy efficiency. ### One Call, One Engineer, One Fix No call centres, no middlemen. You speak directly to the person who will diagnose and fix your system. [![Mitsubishi Ecodan air source heat pump installed on concrete plinth outside a residential property in Hampshire](/assets/work-1-yCIVMH7-.jpeg)](/our-work) 0+ Years Experience 0+ Systems Serviced 24/7 Emergency Callouts 0% F-Gas Compliant ## Heat Pumps in Hampshire: What Local Homeowners Need to Know Heat pumps are not one-size-fits-all. The same Mitsubishi Ecodan that performs beautifully in a new-build in [Basingstoke](/areas/basingstoke) can struggle in a draughty cottage near [Winchester](/areas/winchester) if it's been sized off a spec sheet rather than the house. After 15+ years working across the county, we know what trips Hampshire systems up — and how to design around it. ### Hampshire's hard water shortens system life Much of Hampshire — Basingstoke, Winchester, Andover and the surrounding villages — sits on chalk aquifers. Hard water scales plate heat exchangers, restricts flow and quietly kills efficiency. We flush, dose and protect every system we touch. ### Mild, damp winters change how heat pumps run Hampshire rarely sees deep cold, but the long damp shoulder seasons mean defrost cycles, weather compensation and emitter sizing matter more than peak output. Get those wrong and your COP collapses — even on a brand-new install. ### Older housing stock needs a tailored approach Victorian terraces in Winchester, post-war semis in Basingstoke and rural farmhouses across the county each behave differently. We size to the building, not a spreadsheet — and upgrade emitters or controls only where it actually unlocks performance. Local response time matters too. Refrigerant faults, F-Gas leaks and frozen evaporators don't wait — and a heat pump engineer based two counties away simply can't get to you the same day. Because Appian is based in Basingstoke, most of [Hampshire](/areas/hampshire), [Berkshire](/areas/berkshire) and [Surrey](/areas/surrey) is inside a 45-minute drive. Same-week [heat pump repairs](/services/heat-pump-repair) are the rule, not the exception. Whether you're considering your first [air source heat pump installation](/services/heat-pump-installation), struggling with a system that never quite delivers, or due an [annual service](/services/heat-pump-servicing), the right local engineer changes everything. That's the work Appian Heat Pumps does, every day, across Hampshire. ## What Our Customers Say Real feedback from homeowners and businesses across [Hampshire](/areas/hampshire). [See all customer reviews](/reviews) [Leave us a Google review](https://search.google.com/local/writereview?placeid=ChIJkQk3HzN-bkYRg_56ZizMkJA) ## Recent Work A selection of [heat pump installations](/services/heat-pump-installation), [air conditioning projects](/services/domestic-air-conditioning), and [specialist repairs](/services/heat-pump-repair) from across [Hampshire](/areas/hampshire). [![Mitsubishi Ecodan air source heat pump installed on concrete plinth outside a residential property in Hampshire](/assets/work-1-yCIVMH7-.jpeg)](/our-work)[![Ecodan heat pump outdoor unit with pipework lagging and electrical isolator switch](/assets/work-18-BKlkjgjE.jpeg)](/our-work)[![Ceiling cassette air conditioning unit installed flush in suspended ceiling of a commercial office](/assets/work-7-D0nsJOwO.jpeg)](/our-work)[![Mitsubishi Electric outdoor unit installed on a flat roof with weather protection](/assets/work-11-C0PjuPnq.jpeg)](/our-work)[![Split air conditioning outdoor condenser unit mounted on wall brackets at a domestic property](/assets/work-2-BWDRpBxC.jpeg)](/our-work)[![Domestic air conditioning wall-mounted indoor unit installed in a living room](/assets/work-4-B-xosteY.jpeg)](/our-work)[![Swimming pool heat pump repair in progress with refrigerant manifold gauges, vacuum pump, and recovery equipment](/assets/work-76-yR3TKTG4.jpeg)](/our-work)[![Refrigerant manifold gauges connected during heat pump commissioning and pressure testing](/assets/work-19-BKdzfXzA.jpeg)](/our-work) [View all projects](/our-work) ## How It Works Five simple steps, no jargon, no pressure — from first phone call to long-term aftercare. 01 ### Get in touch Call, message or fill in the form. You'll speak to Craig or a real engineer — never a call centre — usually within two hours. 02 ### Free home estimate We visit, measure, and listen. No pressure, no upsell. You get an honest assessment of what you actually need, in plain English. 03 ### Fixed written quote A clear, itemised quote with a fixed price. The number we send is the number you pay — no surprise extras once work begins. 04 ### We do the work Tidy installation, methodical repair, or planned service — completed by F-Gas certified engineers who specialise in heat pumps. 05 ### Aftercare & warranty Full handover, manufacturer warranty registration, and an annual service reminder. We're a phone call away if you ever need us. ## Areas We Cover We serve homeowners and businesses across [Hampshire](/areas/hampshire), [Berkshire](/areas/berkshire), [Surrey](/areas/surrey) and [Wiltshire](/areas/wiltshire). [Basingstoke ](/areas/basingstoke)[Hampshire ](/areas/hampshire)[Berkshire ](/areas/berkshire)[Surrey ](/areas/surrey)[Wiltshire ](/areas/wiltshire)[Reading ](/areas/reading)[Winchester ](/areas/winchester)[Newbury ](/areas/newbury)[Guildford ](/areas/guildford)[Farnborough ](/areas/farnborough)[Aldershot ](/areas/aldershot)[Woking ](/areas/woking)[Basingstoke & Deane ](/areas/basingstoke-and-deane)[Andover ](/areas/andover)[Bracknell ](/areas/bracknell) [View all service areas →](/areas) Craig Ball Founder & Lead Engineer Team photograph coming soon About Appian ## A Hampshire heat pump specialist — not a generalist plumber Appian Heat Pumps was founded by Craig Ball, who started in commercial heating and ventilation, moved into air conditioning, and now works exclusively on heat pumps. Based in Basingstoke, the team covers Hampshire and the surrounding counties with one promise: do the job properly, first time. We're F-Gas certified, REFCOM registered, and Mitsubishi Electric accredited — so the work is signed off, warranted and compliant. But credentials only matter if the engineer behind them actually knows the kit. That's why every [installation](/services/heat-pump-installation), [repair](/services/heat-pump-repair) and [service](/services/heat-pump-servicing) is carried out by a specialist — not a passing contractor. ![REFCOM F-Gas Certificated](/assets/refcom-badge-Bo6YwTLs.png)![Mitsubishi Electric Accredited Installer](/assets/mitsubishi-badge-e1lhTUMA.jpg)![Ecodan Renewable Heating Technology](/assets/ecodan-badge-DKEvMTX0.jpg) [More about Appian Heat Pumps](/about) ## Current Offers Take advantage of these offers — designed to reward loyal customers and deliver more value. [View all offers](/specials). ### Free Heat Pump Health Check Book any [heat pump service](/services/heat-pump-servicing) and receive a complimentary system [health check](/services/health-checks) — we'll assess performance, efficiency and flag any potential issues before they become costly. [Book a Service →](/contact) ### Annual Maintenance Contract Lock in your annual servicing rate and get priority [emergency response](/services/emergency-repairs). Peace of mind that your system is maintained by a specialist, year-round. [Learn more](/services/annual-maintenance-contracts). [Enquire Now →](/contact) ### Refer a Neighbour — Save £50 Recommend us to a friend or neighbour. When they book, you both receive £50 off your next service. Quality work speaks for itself. [Learn More →](/contact) ## Frequently Asked Questions Quick answers to the questions we hear most often. ### How much does a heat pump repair cost? ### Do you work on all heat pump brands? ### How often should my heat pump be serviced? ### Can you fix a heat pump another installer fitted? ### Do you offer emergency callouts? ### What areas do you cover? ### How much does heat pump installation cost in Hampshire? ### How quickly can you respond to a callout? ## Ready to Get Your Heat Pump Working Properly? Whether it's a [repair](/services/heat-pump-repair), [service](/services/heat-pump-servicing), or new [installation](/services/heat-pump-installation) — get in touch for a no-obligation estimate. Most enquiries are responded to within 2 hours. Call the mobile — fastest reply [07481 552059](tel:07481552059)[Or landline: 01256 672332](tel:01256672332) Mobile available 24/7 for emergencies 5.0 rating "Craig was brilliant — diagnosed the fault in under an hour when two other companies couldn't work it out." — Sarah T., [Basingstoke](/areas/basingstoke) [Read all customer reviews →](/reviews) ### Request a Free Estimate Fill in the form — we'll get back to you within 2 hours. ![Appian Heat Pumps](/assets/logo-DXHDe5EY.png) Expert heat pump installation, repair & servicing across Hampshire and surrounding areas. Over 15 years of trusted experience. [](https://www.linkedin.com/company/appian-heat-pumps/)[](https://www.facebook.com/profile.php?id=100091962078515)[](https://www.instagram.com/appian_heat_pumps) ### Services - [Heat Pump Repair](/services/heat-pump-repair) - [Heat Pump Servicing](/services/heat-pump-servicing) - [Heat Pump Installation](/services/heat-pump-installation) - [Air Conditioning Installation](/services/air-conditioning-installation) - [Commercial Air Conditioning](/services/commercial-air-conditioning) - [Pool Heat Pump Repair](/services/swimming-pool-heat-pump-repair) - [Pool Heat Pump Service](/services/swimming-pool-heat-pump-service) - [Pool Heat Pump Supply](/services/swimming-pool-heat-pump-supplier) - [Commissioning & Optimisation](/services/commissioning-optimisation) - [Emergency Repairs](/services/emergency-repairs) - [System Upgrades](/services/system-upgrades-retrofits) - [Smart Thermostat Integration](/services/smart-thermostat-integration) - [Health Checks](/services/health-checks) - [F-Gas AC Servicing](/services/fgas-air-conditioning-servicing) - [Maintenance Contracts](/services/annual-maintenance-contracts) ### Service Areas - [Basingstoke](/areas/basingstoke) - [Hampshire](/areas/hampshire) - [Berkshire](/areas/berkshire) - [Surrey](/areas/surrey) - [Wiltshire](/areas/wiltshire) - [Reading](/areas/reading) - [Winchester](/areas/winchester) - [Newbury](/areas/newbury) - [Guildford](/areas/guildford) - [Farnborough](/areas/farnborough) - [Aldershot](/areas/aldershot) - [Woking](/areas/woking) - [Basingstoke & Deane](/areas/basingstoke-and-deane) - [Andover](/areas/andover) - [Bracknell](/areas/bracknell) ### Company - [About](/about) - [Our Work](/our-work) - [Blog](/blog) - [Reviews](/reviews) - [Specials](/specials) - [Contact](/contact) - [Privacy Policy](/privacy-policy) - [Terms & Conditions](/terms-conditions) ### Contact Us - 12 Appian Way, Chineham, Basingstoke, RG24 8BH - [07481 552059](tel:07481552059)Mobile — fastest reply, 24/7 - [Or landline: 01256 672332](tel:01256672332) - [info@appianheatpumps.com](mailto:info@appianheatpumps.com) - Opening Hours Mon–Fri: 7:00am – 7:00pm Sat: 8:00am – 5:00pm Sun: 9:00am – 1:00pm Emergency line: 24/7 © 2026 Appian Heat Pumps. All rights reserved. VAT No: 476667534