Heat Pump Installers in Portsmouth

Supply and installation of air conditioning systems in Portsmouth — residential and commercial. F-Gas registered engineers, all major brands, full warranty and commissioning certificate.

• Free site survey and heat-load calculation
• Daikin, Mitsubishi, Panasonic, LG, Samsung
• F-Gas certified installation & commissioning

Fully-supplied AC packages in Portsmouth — unit, brackets, pipework, condensate and commissioning included. Fixed-price quotes with no hidden extras.

• Single fixed-price quote
• All materials, brackets and pipework included
• Same-day or next-day install slots

Like-for-like AC replacement in Portsmouth — remove your old R22 or end-of-life unit and install a modern R32 system with better efficiency and lower running costs.

• R22 phase-out replacements
• Reuse existing pipework where safe
• Recovery of old refrigerant to F-Gas standard

Move an existing AC unit to a new wall, room or building in Portsmouth — refrigerant recovery, re-piping, re-mount and re-commissioning by F-Gas engineers.

• Refrigerant recovered & re-charged legally
• New pipework runs & brackets supplied
• Full re-commissioning & pressure test

Domestic air conditioning for houses and flats in Portsmouth — quiet, efficient wall-mounted splits sized for bedrooms, lounges and home offices.

• Discreet high-wall or floor units
• Whisper-quiet 19dB operation
• Wi-Fi & smart-home control

Quiet, sleep-friendly bedroom AC in Portsmouth — low-noise units with night mode, tidy pipework and neutral finishes to blend into any decor.

• Ultra-quiet indoor units
• Night / sleep mode as standard
• Neat concealed pipework option

Cool multiple rooms in Portsmouth from a single outdoor unit — 2, 3, 4 or 5-port multi-split systems with individual room control.

• One outdoor, up to 5 indoor units
• Independent temperature per room
• Minimises external unit clutter

Short-term portable AC hire in Portsmouth for offices, events and emergency cooling — delivery, install and collection included.

• Same-day delivery available
• 3kW to 14kW mobile units
• Daily, weekly & monthly hire

Design, supply and installation of commercial air conditioning in Portsmouth — offices, retail, hospitality and industrial. Full turnkey delivery from survey to commissioning.

• CIBSE-compliant design
• Minimum disruption install (out of hours available)
• Full CDM & RAMS documentation

Office AC systems in Portsmouth — cassettes, ducted or wall-mounted units zoned to your floor plate. Weekend fits available so trading isn't interrupted.

• Ceiling cassette & ducted options
• Zoned control per meeting room
• Out-of-hours install available

Retail air conditioning in Portsmouth — discreet cassettes and ducted systems that cool the shop floor without disrupting the customer experience.

• Discreet flush ceiling cassettes
• Overnight install to protect trading
• Air curtain integration

Restaurant and café AC in Portsmouth — comfort cooling for the dining area balanced with the kitchen extract system to keep pressure and airflow right.

• Kitchen extract-aware design
• Grease-tolerant ceiling units
• Night-time / closed-hours install

Hotel and hospitality AC in Portsmouth — per-room control with central BMS oversight. Phased install plans so rooms stay bookable.

• VRF with per-room control
• BMS & PMS integration
• Guest-friendly noise levels

Large-volume cooling and cooling+heating for warehouses and light industrial units in Portsmouth — high-wall, ducted and destratification solutions.

• High-wall & duct-mounted units
• Destratification for tall spaces
• Zoned pick / pack / office cooling

School, college and nursery AC in Portsmouth — low-noise cooling for classrooms, IT suites and admin blocks, installed inside term breaks.

• Holiday-window install programmes
• DBS-checked engineers
• Compliant with BB101 ventilation

Precision cooling and comfort cooling for server rooms and comms cabinets in Portsmouth — N+1 resilience, low-temp operation and 24/7 monitoring.

• 24/7 low-ambient operation
• N+1 dual-unit resilience
• Auto-changeover controllers

Wall, floor, ceiling and cassette split systems for homes and small commercial units in Portsmouth — the most efficient way to cool a single room.

• Wall, floor and cassette options
• A+++ SEER-rated inverters
• Heating & cooling in one unit

Four-way ceiling cassette AC in Portsmouth — flush-fit units that deliver even airflow across offices, shops and reception areas.

• 4-way even airflow
• Flush ceiling grille
• Ideal for open-plan spaces

Fully concealed ducted AC in Portsmouth — hidden in the ceiling void with slim grilles, giving a clean architectural finish for premium homes and offices.

• Fully concealed indoor units
• Bespoke ductwork design
• Multi-room zoning available

Variable Refrigerant Flow / Volume systems in Portsmouth — connect dozens of indoor units to one outdoor plant, with simultaneous heating and cooling.

• Heat-recovery VRF/VRV design
• Up to 64 indoor units per system
• Simultaneous heat + cool zones

Air source heat pump installation in Portsmouth — replace your gas or oil boiler with a low-carbon, high-efficiency heating system.

• Full heat-loss survey included
• Radiator sizing checks
• Clean, tidy install

Ground source heat pump design and install in Portsmouth — horizontal loops or borehole arrays for the highest year-round efficiency.

• Horizontal & vertical loop designs
• COP up to 4.5 year-round
• Full heat-loss survey included

Hybrid heat pump systems in Portsmouth — pair an air source heat pump with your existing boiler for the smartest running costs across the year.

• Works with existing boiler
• Auto-switch to cheapest fuel
• Great for hard-to-insulate homes

Annual heat pump service in Portsmouth — refrigerant checks, coil clean, flow rate verification and warranty-required inspection report.

• Meets manufacturer warranty terms
• Refrigerant leak check (F-Gas)
• Coil clean & flow verification

Fault-finding and repair for all makes of air and ground source heat pumps in Portsmouth — refrigerant, controls, hydraulics and electrical.

• All brands & refrigerants
• F-Gas certified engineers
• Same-week attendance

Planned AC servicing in Portsmouth — filter clean, coil wash, refrigerant check and performance test. Keeps warranties valid and running costs low.

• Filter, coil and drain clean
• Refrigerant pressure test
• Anti-bacterial treatment option

Fault diagnosis and repair for wall, cassette, ducted and VRF units in Portsmouth — refrigerant leaks, PCB faults, sensors, fans and controls.

• All makes & models
• Refrigerant leak repair & recharge
• PCB & fan motor replacement

24/7 emergency AC breakdown response in Portsmouth — priority attendance for server rooms, restaurants and any business where cooling is business-critical.

• 24/7 rapid response
• Priority for server / comms rooms
• Portable AC loan available

Planned Preventative Maintenance (PPM) contracts in Portsmouth — one or two visits a year, priority breakdown response and discounted parts.

• 1 or 2 visits per year
• Priority 4-hour response
• Discounted parts & labour

Full antibacterial deep clean of AC indoor units in Portsmouth — removes mould, bacteria and odours from evaporator coils and drain trays.

• Chemical coil wash
• Anti-bacterial fogging
• Removes musty smells

Refrigerant recharge for AC units and heat pumps in Portsmouth — leak trace first, then recover, evacuate and recharge to manufacturer spec.

• F-Gas leak trace included
• R32, R410A, R454B, R290
• Vacuum-tested to spec

F-Gas leak inspection and compliance certification in Portsmouth — mandatory for any commercial system containing 5 tonnes CO₂e or more of refrigerant.

• Certified Category 1 engineers
• Meets EC 517/2014 & UK F-Gas
• Digital compliance report

Legally-required TM44 inspection in Portsmouth for AC systems over 12kW — energy assessment report lodged on the government register.

• Meets Energy Performance of Buildings Regs
• Accredited energy assessor
• Report valid for 5 years

Electronic and dye-based refrigerant leak detection in Portsmouth — find and fix leaks fast to protect performance and stay legal under F-Gas rules.

• Electronic sniffer detection
• UV dye tracer option
• Pinpoint & repair in one visit

Mechanical Ventilation with Heat Recovery in Portsmouth — recover up to 92% of the heat you'd otherwise vent, ideal for new builds and deep retrofits.

• Up to 92% heat recovery
• Whisper-quiet ducted units
• Improves indoor air quality

Supply and extract ventilation for offices, kitchens and industrial units in Portsmouth — designed to Building Regulations Part F.

• Compliant with Part F
• Kitchen extract & make-up air
• Ductwork fabrication in-house

Free no-obligation AC design survey in Portsmouth — heat-load calculation, unit sizing, install route and fixed-price quote issued within 48 hours.

• Free and no-obligation
• Room-by-room heat-load calc
• Fixed-price quote in 48 hours

Smart thermostat and zoning controls for AC and heat pumps in Portsmouth — cut running costs and control your climate from your phone.

• Wi-Fi & app control
• Zoning & scheduling
• Works with Alexa & Google

Phase out illegal R22 refrigerant systems in Portsmouth — recover the old gas legally and replace with a modern R32 unit up to 40% more efficient.

• R22 recovered to F-Gas standard
• R32 replacement units
• Reuse existing pipework where possible

Air- and water-cooled chiller install, service and repair in Portsmouth — process cooling, comfort cooling and data centre applications.

• Air & water-cooled designs
• Glycol / process cooling
• N+1 resilient plant rooms

Cold rooms, walk-in freezers and cellar cooling in Portsmouth — refrigeration design, install and service for hospitality and food retail.

• Cold rooms & walk-in freezers
• Cellar cooling for pubs & bars
• Bespoke panel construction

Daikin D1+ accredited installer in Portsmouth — full range from Emura and Stylish domestic units up to VRV IV commercial systems, with 7-year warranty.

• Daikin D1+ premium installer
• 7-year manufacturer warranty
• Emura, Stylish, Perfera, VRV

Mitsubishi Electric approved installer in Portsmouth — MSZ and City Multi ranges, hyper-heating and multi-split configurations.

• Mitsubishi Electric approved
• MSZ-AP, MSZ-LN, City Multi
• 5-year manufacturer warranty

Wet (hydronic) underfloor heating installation in Portsmouth — new builds, extensions and retrofits, designed as low-temperature systems that pair perfectly with air source and ground source heat pumps.

• Wet/hydronic systems — screed, low-profile & retrofit
• Room-by-room heat loss & pipe-spacing design
• Manifolds, zoning, actuators and smart controls

Underfloor heating repair and fault finding in Portsmouth — cold zones, manifold and actuator faults, leaks, airlocks and control failures diagnosed and fixed, with same-day emergency attendance.

• Fault finding & thermal-imaging diagnostics
• Manifold, actuator, pump & flow meter repairs
• Leak detection, flushing and pressure faults

Underfloor heating fault finding in Portsmouth — cold zones, no-heat calls and intermittent faults diagnosed with thermal imaging, actuator testing and flow-rate checks before any parts are replaced.

• Thermal imaging to locate cold pipes & blockages
• Actuator, thermostat & wiring centre testing
• Manifold flow-rate and pressure checks

UFH manifold repair in Portsmouth — leaking valves, seized flow meters, faulty actuators and corroded fittings repaired or replaced on all major manifold brands.

• All major manifold brands serviced
• Valve, gauge & isolation point repairs
• Leak repairs and re-sealing

Underfloor heating manifold replacement in Portsmouth — old or failed manifolds swapped for modern stainless steel units with new actuators, flow meters and blending control.

• Stainless steel manifold upgrades
• New actuators, flow meters & gauges
• Like-for-like or upgraded sizing

UFH actuator replacement in Portsmouth — stuck or failed thermal actuators swapped per zone, restoring individual room control without replacing the whole manifold.

• Per-zone actuator swaps
• All common 230V & 24V heads
• Wiring centre compatibility checked

UFH flow meter replacement in Portsmouth — clouded, stuck or broken manifold flow gauges replaced so each loop can be balanced accurately again.

• Clouded or seized gauges replaced
• Accurate per-loop balancing restored
• Matched to your manifold brand

UFH manifold valve replacement in Portsmouth — leaking isolation, filling and drain valves on the manifold replaced, with system drain-down and refill handled cleanly.

• Isolation, filling & drain valves
• Controlled drain-down and refill
• Inhibitor topped up after refill

UFH pump replacement in Portsmouth — failed or noisy underfloor heating circulation pumps swapped for correctly sized energy-efficient models, with blending valve checks included.

• Energy-efficient A-rated pump upgrades
• Correctly sized for your loops
• Mixing/blending valve checked

UFH blending valve replacement in Portsmouth — failed mixing valves causing over-hot or stone-cold floors replaced, protecting screed and floor finishes from high flow temperatures.

• Over-hot & cold-floor faults fixed
• Thermostatic mixing valves replaced
• Flow temperature set for floor type

UFH mixing valve repair in Portsmouth — sticking thermostatic heads and scaled valve bodies serviced or rebuilt, restoring safe low-temperature flow to your underfloor loops.

• Sticking thermostatic heads repaired
• De-scaling & seal replacement
• Flow temperature recalibrated

UFH wiring centre replacement in Portsmouth — burnt-out or obsolete control centres swapped, with actuators, thermostats and boiler/heat pump switch live re-landed and labelled.

• Obsolete control centres upgraded
• All zones re-landed & labelled
• Heat source switch-live reconnected

Heatmiser wiring centre replacement in Portsmouth — UH1, UH4 and UH8 centres replaced or upgraded to Neo-compatible versions, keeping all your zones and thermostats working.

• UH1 / UH4 / UH8 replacements
• Neo upgrade path available
• Existing stats retained where compatible

UFH thermostat replacement in Portsmouth — failed or outdated room stats swapped for programmable or smart thermostats, with floor probes fitted where needed for timber and LVT floors.

• Programmable & smart stat upgrades
• Floor probes for timber & LVT
• Heatmiser, Hive, Nest & more

UFH zone not heating in Portsmouth — single cold room or whole cold wing traced to actuator, thermostat, airlock or blockage and fixed, usually in one visit.

• Actuator & stat checks first
• Airlock and blockage clearance
• Thermal imaging pinpoints the fault

UFH actuator not opening in Portsmouth — testing confirms whether the head, wiring centre or thermostat is at fault, then the failed part is replaced on the spot where stock allows.

• Head vs wiring centre vs stat isolated
• Common actuator heads stocked
• Manual-open caps checked & replaced

UFH manifold leaking in Portsmouth — drips from valves, gauges and unions traced, resealed or replaced before they damage the cabinet, floor or ceiling below.

• Leak source pinpointed quickly
• Unions, valves & gauges resealed
• Corroded fittings replaced

UFH low-flow fault diagnosis in Portsmouth — sludge, scaled mixing valves, undersized pumps or kinked pipe identified and cleared so loops get design flow again.

• Flow rates measured per loop
• Sludge & scale cleared
• Pump sizing verified

UFH airlock removal in Portsmouth — air trapped in underfloor loops purged loop-by-loop, restoring full circulation without repeated top-ups or noisy pipes.

• Loop-by-loop purging
• No repeated pressure top-ups
• Air entry points identified

UFH balancing in Portsmouth — every loop's flow rate set to the design figure so rooms heat evenly and the heat source runs at its most efficient flow temperature.

• Per-loop flow rates set to design
• Even room temperatures restored
• Lower flow temperature = lower bills

UFH flushing in Portsmouth — power and chemical flushing removes sludge and installation debris from underfloor loops, restoring flow and protecting pumps and valves.

• Power & chemical flushing
• Sludge and debris removed
• Protects pump, valves & heat source

UFH commissioning in Portsmouth — new or altered underfloor systems filled, vented, balanced and control-tested, with heat-up schedule for new screeds and full handover documentation.

• Fill, vent & balance all loops
• Screed heat-up schedule provided
• Controls & zoning fully tested

UFH pressure testing in Portsmouth — underfloor loops pressure tested before screeding or handover, with test certificates for builders, warranty providers and insurers.

• Pre-screed & pre-handover tests
• Test certificates issued
• Suits builders & warranty providers

UFH leak detection in Portsmouth — non-invasive trace and thermal imaging locates underfloor pipe leaks to within a tile, minimising floor lifting and repair cost.

• Non-invasive thermal imaging
• Tracer gas & acoustic methods
• Leak located to a small area

UFH controls upgrade in Portsmouth — old dial stats and single-zone controls replaced with room-by-room smart control, cutting heat-pump and boiler run times.

• Room-by-room smart zoning
• App control from anywhere
• Lower heat source run times

UFH smart thermostat conversion in Portsmouth — convert underfloor heating to app-controlled smart stats with schedules, geofencing and energy reporting per room.

• App control per room
• Schedules & geofencing set up
• Energy usage reporting

Heat pump buffer vessel installation in Portsmouth — correctly sized buffers added to stop short-cycling, provide defrost volume and protect the compressor.

• Sized to stop short-cycling
• Defrost volume for cold snaps
• 4-pipe or 2-pipe configurations

Heat pump volumiser installation in Portsmouth — in-series volumisers increase system water content on the flow or return, a simple fix for short-cycling where space is tight.

• In-series flow or return fitting
• Fixes short-cycling simply
• Compact — suits tight plant spaces

Heat pump circulation pump replacement in Portsmouth — failed or undersized primary and secondary pumps swapped for correctly rated models, restoring design flow rates.

• Primary & secondary pumps
• Correctly sized for design flow
• Energy-efficient replacements

Heat pump low-flow fault diagnosis in Portsmouth — blocked strainers, closed valves, sludge or pump faults found and cleared so the unit stops tripping on flow alarms.

• Strainers & filters cleaned
• Pump performance verified
• Sludge & blockages cleared

Heat pump flow-temperature problems solved in Portsmouth — systems that can't reach temperature, or run far hotter than needed, diagnosed and corrected for comfort and COP.

• Can't-reach-temperature faults fixed
• Over-hot flow corrected
• Weather compensation tuned

Heat pump system balancing in Portsmouth — radiators and UFH loops balanced to design flow rates so every room heats evenly at the lowest possible flow temperature.

• Radiators & UFH loops balanced
• Even temperatures room to room
• Lowest viable flow temperature

Heat pump hydraulic separation in Portsmouth — low-loss headers and plate heat exchangers specified and installed where primary and secondary circuits need independent flow rates.

• Low-loss headers & plate HX
• Independent circuit flow rates
• Stops pump conflict & starvation

Heat pump low-loss header installation in Portsmouth — headers sized and fitted to separate the heat pump circuit from multiple heating zones without flow conflict.

• Sized to your peak flow rates
• Multi-zone ready
• Ends pump conflict

Heat pump plate heat exchanger installation in Portsmouth — plate HX fitted to separate glycol or dirty circuits from the heat pump, or to interface with existing boiler systems.

• Separates glycol & legacy circuits
• Protects heat pump from debris
• Hybrid boiler interfaces

Heat pump antifreeze and glycol testing in Portsmouth — glycol concentration, pH and inhibitor levels tested and corrected so outdoor units are protected to the right frost point.

• Concentration & frost-point tested
• pH & inhibitor levels checked
• Top-up or replacement advised

Heat pump system flushing in Portsmouth — low-pressure power and chemical flushing removes magnetite and debris that block strainers and plate heat exchangers and kill efficiency.

• Low-pressure flush — safe for ASHP
• Magnetite & debris removed
• Strainers & plate HX cleaned

Heat pump commissioning correction in Portsmouth — poorly commissioned systems re-set: flow rates, weather compensation, sensor positions and controller settings corrected to design.

• Flow rates re-set to design
• Weather compensation re-commissioned
• Sensor positions corrected

Heat pump weather compensation setup in Portsmouth — heating curves configured so flow temperature tracks outdoor conditions, the single biggest lever on heat pump running costs.

• Heating curve configured
• Outdoor sensor checked & cited
• Biggest single COP improvement

Heat pump heating curve optimisation in Portsmouth — curves fine-tuned over real conditions so the system runs at the lowest flow temperature that still keeps every room comfortable.

• Curve tuned to your property
• Lowest viable flow temperature
• Comfort maintained in cold snaps

Heat pump emitter assessment in Portsmouth — radiators and UFH output measured room-by-room to confirm they can deliver design heat at low flow temperatures, with upgrade options costed.

• Room-by-room output check
• Low-temperature suitability rated
• Radiator upgrade options costed

Heat pump cylinder integration in Portsmouth — hot water cylinders connected and commissioned with the heat pump, including legionella cycles, priority control and immersion backup.

• Cylinder connected & commissioned
• Legionella cycle configured
• Hot water priority control

Heat pump UFH integration in Portsmouth — underfloor heating connected directly to the heat pump at low flow temperature, often without a mixing valve, for maximum efficiency.

• Direct low-temperature connection
• Mixing valve removed where possible
• Zoning matched to heat pump output

Hybrid heat pump controls in Portsmouth — heat pump and boiler configured to work together with smart switch-over on price or temperature, so each heat source runs when it's cheapest.

• Heat pump + boiler switch-over
• Price or temperature based control
• Each source runs when cheapest