# Airva

> UK air-conditioning guidance for homes and businesses, with a deterministic Cooling Planner that compares portable, window, through-wall, single-split, multi-split and ducted systems for a given home, and introductions to vetted installers. Regulatory, planning and pricing claims cite the body that sets the rule; cost bands for portable and window units are Airva's own market estimate and are labelled as such.

## Cooling Planner

- [Cooling Planner](https://www.airva.co.uk/cooling-planner): answer a few questions, get a compared recommendation with indicative costs
- [Common situations](https://www.airva.co.uk/cooling-planner/for): pre-computed answers for typical homes, each with a link into the planner
- [A rented flat where nothing permanent can be installed](https://www.airva.co.uk/cooling-planner/for/rented-flat-no-permanent-changes): Cooling one bedroom in a rented flat, no drilling or outdoor unit allowed, used through the summer.
- [A bedroom, under £500, something you can put away in winter](https://www.airva.co.uk/cooling-planner/for/bedroom-under-500-put-away-in-winter): A small bedroom with sash windows, a firm ceiling of about £500, and a preference for a unit that stores away out of season.
- [A bedroom with a fixed system that heats in winter as well](https://www.airva.co.uk/cooling-planner/for/bedroom-fixed-system-heating-too): One medium bedroom, permanent changes and an outdoor unit both fine, wanting heating as well as cooling, open to a proper installation.
- [A home office used most of the year](https://www.airva.co.uk/cooling-planner/for/home-office-used-all-year): A medium home office in use much of the year, outdoor unit possible, running cost the main concern.
- [A large living room where an outdoor unit is not possible](https://www.airva.co.uk/cooling-planner/for/living-room-no-outdoor-unit): A large living room, permanent changes allowed but nowhere for an outdoor condenser, casement windows, regular summer use.
- [A loft bedroom that overheats](https://www.airva.co.uk/cooling-planner/for/loft-bedroom): A converted loft room, outdoor unit probably possible, used through the summer, heating a bonus.
- [A conservatory that is unusable in summer](https://www.airva.co.uk/cooling-planner/for/conservatory): A conservatory, permanent changes fine, outdoor unit possible, wanting to use it in winter as well.
- [Casement windows and no drilling allowed](https://www.airva.co.uk/cooling-planner/for/casement-windows-no-drilling): One room with casement windows, no permanent changes, cooling only for hot spells.
- [Two bedrooms, both needing cooling](https://www.airva.co.uk/cooling-planner/for/two-bedrooms): Two bedrooms, permanent changes and an outdoor unit both fine, heating wanted too — one multi-split or two single splits.
- [Three rooms and no outdoor unit possible](https://www.airva.co.uk/cooling-planner/for/three-rooms-no-outdoor-unit): A living room and two bedrooms, permanent changes fine but no outdoor condenser possible.
- [A whole home, mid-renovation](https://www.airva.co.uk/cooling-planner/for/whole-home-renovation): Most of the house, during a renovation with significant building work, keeping the existing heating.
- [A whole home without major building work](https://www.airva.co.uk/cooling-planner/for/whole-home-no-building-work): Most of the house, no renovation planned, outdoor units possible, main heating staying as it is.
- [A gas-heated house that gets too hot in summer](https://www.airva.co.uk/cooling-planner/for/gas-boiler-wanting-cooling): A working gas boiler and radiators staying put, with cooling wanted in the bedrooms and living room while the family lives in the house.
- [Replacing the boiler but keeping the radiators](https://www.airva.co.uk/cooling-planner/for/replacing-boiler-keeping-radiators): A heat pump on the existing radiators for heating and hot water, with cooling added only in the bedrooms — because radiators cannot cool.
- [A home on storage heaters](https://www.airva.co.uk/cooling-planner/for/storage-heaters-whole-home): One of the strongest cases for air-to-air: whole-home heating and cooling from the same equipment, keeping the immersion cylinder for hot water.
- [A refurbishment where nothing should be visible](https://www.airva.co.uk/cooling-planner/for/refurbishment-hidden-equipment): A major refurbishment with ceiling space being created, cooling throughout, and a requirement that only grilles show.
- [A flat on communal heating with nowhere for an outdoor unit](https://www.airva.co.uk/cooling-planner/for/flat-communal-heating): The honest answer when the heating is a building-wide decision and there is nowhere outside: room units now, and what would change it.
- [A three-storey house that should only have one outdoor unit](https://www.airva.co.uk/cooling-planner/for/three-storey-house-one-outdoor-unit): Cooling on every floor with as little outside as possible, mid-renovation — where the number of floors decides the answer.
- [Developers](https://www.airva.co.uk/developers): the same recommendation engine as a JSON API and an MCP server

## Home air conditioning guides

- [What Size Air Conditioner Do I Need? A BTU Guide for UK Ceiling Heights and Heat Gain](https://www.airva.co.uk/home-air-conditioning/air-conditioner-size-for-room): Air conditioner size for a room in kW and BTU — floor-area starting points, the 2.4 m ceiling-height correction, and the heat-gain factors that decide capacity in lofts, conservatories and sun-facing bedrooms.
- [Air Conditioning Finance for UK Homes and Businesses](https://www.airva.co.uk/home-air-conditioning/air-conditioning-finance): Air conditioning finance is widely available in the UK through installer plans, personal loans, leasing and staged payments. What to compare, and when a grant applies.
- [Air Conditioning for Old Houses: Ductless Heat Pumps Without New Ductwork](https://www.airva.co.uk/home-air-conditioning/air-conditioning-for-old-houses): Air conditioning for old houses with no ductwork — how a ductless heat pump retrofit works, why load calculation beats floor area, and the electrical, line-set, condensate and outdoor-unit limits that decide feasibility.
- [Air Conditioning Grants for Landlords: What Actually Qualifies for Funding](https://www.airva.co.uk/home-air-conditioning/air-conditioning-grants-for-landlords): Air conditioning grants for landlords in the UK — why no scheme funds cooling alone, what the Boiler Upgrade Scheme and Warm Homes: Local Grant actually cover, and the EPC, tenant and installer rules that decide eligibility.
- [Air Conditioning Grants UK: What Schemes Cover Cooling](https://www.airva.co.uk/home-air-conditioning/air-conditioning-grants-uk): Air conditioning grants in the UK usually fund heating, not cooling. The narrow exception is the Boiler Upgrade Scheme's £2,500 grant for an air-to-air heat pump that also cools.
- [Air Conditioning Maintenance: What a Good Plan Covers and What Landlords Must Add](https://www.airva.co.uk/home-air-conditioning/air-conditioning-maintenance-plan-for-landlords): Air conditioning maintenance explained — servicing schedules, plan types and costs, the F-gas and 12kW inspection thresholds, and how landlords split duties with tenants.
- [Air Conditioning Service Cost UK — What You Should Pay](https://www.airva.co.uk/home-air-conditioning/air-conditioning-service-cost): What an air conditioning service costs in the UK — typical per-visit prices for splits and multi-splits, what a proper service includes, service plans versus pay-per-visit, and the red flags to avoid.
- [Home Air Conditioning Units — Types, Costs & How to Choose](https://www.airva.co.uk/home-air-conditioning/air-conditioning-units-for-home): Every type of air conditioning unit for the home compared — portable, through-wall, wall-mounted split, multi-split, floor console and ducted — with indicative UK costs and who each suits.
- [Air to Air Heat Pump Cost UK: £2,000 to £15,000 by Scope](https://www.airva.co.uk/home-air-conditioning/air-to-air-heat-pump-cost): Air to air heat pumps cost £2,000 to £4,000 for one room and £5,000 to £15,000 for a whole home. Grant rules, running costs and what moves a quote.
- [Air to Air Heat Pump vs Air Conditioning: Which Fits Your Property Type](https://www.airva.co.uk/home-air-conditioning/air-to-air-heat-pump-vs-air-conditioning): Air to air heat pump vs air conditioning explained for UK homes, landlords and commercial premises — what the labels mean, which system suits which property type, installed and running costs, and when the Boiler Upgrade Scheme's £2,500 air-to-air grant applies.
- [Air to Air Heat Pumps: Heating, Cooling and the £2,500 Grant](https://www.airva.co.uk/home-air-conditioning/air-to-air-heat-pumps): An air to air heat pump heats your home in winter and cools it in summer. How it works, which rooms it suits, and who qualifies for the £2,500 BUS grant.
- [Bedroom Air Conditioning — Sleeping Cool and Quietly](https://www.airva.co.uk/home-air-conditioning/bedroom): Air conditioning for bedrooms — why the noise spec matters more than the cooling spec, how to size for a sleeping room rather than a daytime one, and what a bedroom install costs.
- [Best Air Conditioning for a Rental Property (UK)](https://www.airva.co.uk/home-air-conditioning/best-air-conditioning-brand-rental-property): Which AC brand suits a UK rental? Daikin, Mitsubishi Electric and LG compared for studios, HMOs and whole-house lets on noise, parts and running cost.
- [Best Air Conditioning Brands UK: Ranked by Room and Use Case](https://www.airva.co.uk/home-air-conditioning/best-air-conditioning-brands-uk): Best air conditioning brands UK by room and use case — which brands installers shortlist for bedrooms, conservatories, lofts, whole-home multi-splits and offices.
- [Best Portable Air Conditioner UK: 6 Checks Before You Buy](https://www.airva.co.uk/home-air-conditioning/best-portable-air-conditioning-units): Size it right (2.6 to 2.9 kW for a 15 to 25 m² room), choose dual hose if you can, read the dB(A) figure and check the window kit. Brands worth shortlisting.
- [Conservatory Air Conditioning — What Actually Works](https://www.airva.co.uk/home-air-conditioning/conservatory): Cooling a conservatory in the UK — why the glazing beats the equipment, how to size for a room with almost no insulation, and the fabric fixes worth doing before you buy anything.
- [Home Air Conditioning Cost — UK Prices Explained](https://www.airva.co.uk/home-air-conditioning/cost): What home air conditioning costs to install in the UK — the three decisions that set your price band, what is included, the extras that appear late, and how to sanity-check a quote.
- [Daikin vs Mitsubishi Air Conditioning & Heat Pumps](https://www.airva.co.uk/home-air-conditioning/daikin-vs-mitsubishi): Daikin vs Mitsubishi Electric at the same tier: bedroom noise, cold-weather heating, warranty terms, and why running costs differ by only about £10 a year.
- [Ducted Air Conditioning Cost — What Sets the Price in a UK Home](https://www.airva.co.uk/home-air-conditioning/ducted-air-conditioning-cost): What ducted air conditioning costs in a UK home, how our estimate is built, the features of your house that move it, when the premium over wall units is worth paying, and why timing it with a renovation matters most.
- [Ducted Air Conditioning — Concealed Systems for UK Homes](https://www.airva.co.uk/home-air-conditioning/ducted-systems): How ducted air conditioning works in a UK home, why the ceiling void decides whether it is possible, what it costs against a multi-split, and when it is worth the disruption.
- [Air Conditioning External Unit — Where It Can Go](https://www.airva.co.uk/home-air-conditioning/external-unit): Where the outdoor unit of a home air conditioning system can go — the clearances it needs, what the 2025 rule changes allow, winter drainage, and why access decides your service costs.
- [Air Conditioning for Flats — What's Possible and Permissions](https://www.airva.co.uk/home-air-conditioning/flat): Air conditioning options for flats and apartments in the UK, outdoor-unit siting, and the leaseholder and freeholder permissions to consider.
- [Low Wall & Floor-Mounted Air Conditioning Units](https://www.airva.co.uk/home-air-conditioning/floor-mounted-air-conditioning): Low wall and floor-mounted (console) air conditioning — the radiator-height split unit for conservatories, period homes and lofts. £2,000–£3,200 installed.
- [Garage Air Conditioning — Gyms, Workshops & Conversions](https://www.airva.co.uk/home-air-conditioning/garage-air-conditioning): How to heat and cool a garage gym, workshop or conversion — why insulation comes first, when dust rules out refrigerant kit, and £1,500–£2,500 installed costs.
- [Garden Room Air Conditioning — Heat & Cool a Garden Office](https://www.airva.co.uk/home-air-conditioning/garden-room): Why a small reversible split system is the year-round answer for a garden office — sizing, power supply, permitted development, and £1,500–£2,500 installed costs.
- [Heat Pump Grant Eligibility Checker: What the Boiler Upgrade Scheme Rules Actually Say](https://www.airva.co.uk/home-air-conditioning/heat-pump-grant-eligibility-checker): Who qualifies for the Boiler Upgrade Scheme heat pump grant in England and Wales — the eligibility rules, grant amounts by technology, the £9,000 off-gas-grid uplift, the April 2026 removal of the EPC requirement, and the installer-led voucher process.
- [Air Conditioning That Heats and Cools — Using It in Winter](https://www.airva.co.uk/home-air-conditioning/heating-and-cooling): Reversible air conditioning as winter heating — how it works below freezing, what defrost cycles do, when it beats your existing heating, and why cooling-only units cost you planning rights.
- [Home Air Conditioning — UK Installation, Costs & Systems](https://www.airva.co.uk/home-air-conditioning): A clear guide to home air conditioning in the UK — how modern systems cool and heat, what installation costs, which rules apply, and how to tell a surveyed quote from a guessed one.
- [Home Office Air Conditioning — Cooling a Room You Work In](https://www.airva.co.uk/home-air-conditioning/home-office): Air conditioning for a home office — counting the equipment heat load people forget, why noise matters on video calls, and why the winter heating case is usually the stronger one.
- [House Too Hot in Summer? What Actually Works (UK Guide)](https://www.airva.co.uk/home-air-conditioning/house-too-hot-in-summer): An honest triage for a UK house that is too hot in summer — free shading and ventilation tactics first, the real limits of fans and film in a heatwave, and when fitted cooling becomes the answer.
- [How Does Air Conditioning Work? The Refrigeration Cycle Explained](https://www.airva.co.uk/home-air-conditioning/how-does-air-conditioning-work): How air conditioning actually works — the vapour-compression refrigeration cycle in plain English, why it moves heat rather than makes cold, how the same cycle heats in reverse, and what SEER, COP and R-32 mean.
- [How Often Should Air Conditioning Be Serviced UK](https://www.airva.co.uk/home-air-conditioning/how-often-should-air-conditioning-be-serviced-uk): How often air conditioning should be serviced in the UK — annual as standard, six-monthly for year-round use, what a service costs, and where TM44 and F-Gas duties actually apply.
- [How to Choose an Air Conditioning Installer (UK)](https://www.airva.co.uk/home-air-conditioning/how-to-choose-an-air-conditioning-installer): Check an AC installer before you sign: F-Gas company certificate, £2m insurance, Part P notification, a room-by-room heat load and the commissioning sheet.
- [Air Conditioning Installation Process — What Happens on the Day](https://www.airva.co.uk/home-air-conditioning/installation-process): What a home air conditioning installation actually involves, the vacuum test that separates a good install from a bad one, and the paperwork you should be handed at the end.
- [Air Conditioning for Listed Buildings — Consent and Realistic Options](https://www.airva.co.uk/home-air-conditioning/listed-building): Air conditioning in a listed building in England: why indoor-only work still needs listed building consent, what a conservation officer weighs, the options ranked by what they cost the building, and the order to do things in.
- [Loft Conversion Air Conditioning — Cooling Top-Floor Rooms](https://www.airva.co.uk/home-air-conditioning/loft-conversion): Why loft conversions overheat and how air conditioning keeps them comfortable, with the practical considerations for cooling a top-floor room.
- [MEES Regulations and Air Conditioning: Why the Letting Floor Matters More Than Your EPC Score](https://www.airva.co.uk/home-air-conditioning/mees-regulations-air-conditioning): How air conditioning is treated under MEES and EPCs — what SAP actually models for cooling, the minimum rating you may let at, the £3,500 cap, and where TM44 inspections apply.
- [Multi-Split Air Conditioning — One Outdoor Unit, Several Rooms](https://www.airva.co.uk/home-air-conditioning/multi-split-systems): How multi-split air conditioning works, the mode constraint that stops it heating one room while cooling another, the diversity trap in sizing, and when separate splits are the better buy.
- [New Build Air Conditioning — Part O and Retrofitting](https://www.airva.co.uk/home-air-conditioning/new-build): Air conditioning in a new build — why Part O will not let a developer design cooling in as a shortcut, what to ask before completion, and what retrofitting costs once you have the keys.
- [Period Home Air Conditioning: Conservation Areas and Siting](https://www.airva.co.uk/home-air-conditioning/period-home): Air conditioning in a period or conservation-area home in England. The permitted development limits that still apply, Article 4 directions, the 2025 changes and where to site a unit discreetly.
- [Air Conditioning Planning Permission — Do You Need It?](https://www.airva.co.uk/home-air-conditioning/planning-permission): When home air conditioning needs planning permission in England — the Class G permitted development limits as amended in 2025, the cooling-only trap, MCS 020(a) noise, and listed and conservation rules.
- [Home Air Conditioning: Portable Unit or Fixed Split System?](https://www.airva.co.uk/home-air-conditioning/portable-air-conditioner-vs-air-conditioning): Well-reviewed portables run at about 52 to 54 dB(A) and pull warm air back in. A fixed split is quieter and heats too. Which rooms suit each.
- [Quiet Air Conditioning Units — dB Ratings That Matter](https://www.airva.co.uk/home-air-conditioning/quiet-air-conditioning-units): How to buy genuinely quiet air conditioning — what dB(A) ratings really mean, why brochure figures flatter, what changes real-world noise, and which types of unit are quietest.
- [R32 vs R410A: GWP Compared and UK F-Gas Rules](https://www.airva.co.uk/home-air-conditioning/r32-vs-r410a): R32 vs R410A on published global warming potential: 675 against 2,088 on IPCC AR4, 677 against 1,924 on AR5, and what the F-gas rules mean for UK systems.
- [Air Conditioning Running Costs — What It Actually Costs to Run](https://www.airva.co.uk/home-air-conditioning/running-costs): What UK home air conditioning costs to run, worked from the current Ofgem price cap — why cooling is cheap, why heating is where the money is, and how SEER and SCOP turn into pounds.
- [Single Room Air Conditioning — Options & Costs](https://www.airva.co.uk/home-air-conditioning/single-room-air-conditioning): Air conditioning for one room — portable vs a fixed single split, the five-year cost of ownership, the one-day installation, and how a single unit grows into a multi-room system later.
- [Small & Slimline Air Conditioning Units for UK Rooms](https://www.airva.co.uk/home-air-conditioning/small-air-conditioning-units): The smallest real air conditioning — slim wall-mounted units under 30 cm tall, compact portables, and why mini coolers are not AC. Sizes and installed costs.
- [Split System Air Conditioning: Cooling, Heating and Cost](https://www.airva.co.uk/home-air-conditioning/split-systems): A split system puts the noisy compressor outside and heats as well as cools. A single room costs £1,500 to £3,500 installed. Why the pipe run sets the price.
- [Static Caravan Air Conditioning — Holiday Home Cooling](https://www.airva.co.uk/home-air-conditioning/static-caravan-air-conditioning): Why static caravans and lodges overheat, the options from portables to fitted splits, the park-permission and pitch-electrics checks to make first, and £1,300–£2,500 fitted costs.
- [Through-Wall Air Conditioning Units — When They Make Sense](https://www.airva.co.uk/home-air-conditioning/through-wall-air-conditioning): What a through-wall air conditioning unit means in the UK — packaged units vs splits through the wall, when a true through-wall unit is right, and the honest alternatives.
- [Wall-Mounted Air Conditioning Units — Costs, Sizes & Fitting](https://www.airva.co.uk/home-air-conditioning/wall-mounted-air-conditioning): Wall-mounted air conditioning explained — how a wall unit works with its outdoor condenser, where it should be positioned, and £1,800–£3,000 installed costs.
- [Whole-House Air Conditioning — Cool & Heat Every Room](https://www.airva.co.uk/home-air-conditioning/whole-house): Whole-house air conditioning options for UK homes — multi-split and ducted systems, what whole-home cooling and heating costs, and how to plan it.
- [Air Conditioning Without an Outdoor Unit — What Actually Works](https://www.airva.co.uk/home-air-conditioning/without-outdoor-unit): Your options when you cannot fit an external condenser — through-wall monoblocs, portables and evaporative coolers compared honestly, plus the consent routes worth trying first.

## Business air conditioning guides

- [Commercial Air Conditioning — Installation for UK Businesses](https://www.airva.co.uk/business-air-conditioning): Commercial air-conditioning installation for offices, retail, hospitality and more — how business projects differ from domestic, the recurring compliance duties, what drives cost, and how to specify properly.
- [Care Home Air Conditioning — Resident Comfort & Safety](https://www.airva.co.uk/business-air-conditioning/care-home): Air conditioning for care and nursing homes — heat risk to older residents, quiet draught-free cooling for bedrooms and lounges, and phased installation in an occupied home.
- [Ceiling Cassette Air Conditioning — Where Cassettes Win](https://www.airva.co.uk/business-air-conditioning/ceiling-cassette-air-conditioning): Ceiling cassette air conditioning explained — 4-way airflow, suspended-ceiling fit, why cassettes suit open-plan offices, retail and restaurants, and £2,500–£4,500 installed costs.
- [Dental Surgery & Clinic Air Conditioning (HTM 03-01)](https://www.airva.co.uk/business-air-conditioning/clinic): AC for dental surgeries and clinics: why cooling is not ventilation, what HTM 03-01 asks of treatment rooms, F-gas and TM44 duties, and typical costs.
- [Commercial Heat Pump Cost UK: £/kW Prices by Size](https://www.airva.co.uk/business-air-conditioning/commercial-air-to-air-heat-pump-cost): Our UK bands for commercial heat pump cost: £12,000 to £20,000 for 20 to 30 kW, up to £100,000+ at 150 to 250 kW. £/kW rates, payback and grant rules.
- [Commercial Air Conditioning Cost — What Drives the Price](https://www.airva.co.uk/business-air-conditioning/cost): What commercial air conditioning costs in the UK, what a complete quote contains, and the three cost lines businesses miss — planning permission, out-of-hours access and recurring compliance.
- [Commercial Air Conditioning Energy Efficiency — Where the Savings Are](https://www.airva.co.uk/business-air-conditioning/energy-efficiency): What actually reduces commercial air conditioning running costs — why controls beat equipment ratings, what SEER and SCOP do and do not tell you, and the maintenance losses nobody meters.
- [Gym & Fitness Studio Air Conditioning](https://www.airva.co.uk/business-air-conditioning/gym): Air conditioning for gyms and fitness studios — why a cold gym still feels awful, the 16–18°C design target, sizing studios for a full class, and what a fitness installation costs.
- [Hotel Air Conditioning — Guest Room & Communal Systems](https://www.airva.co.uk/business-air-conditioning/hotel): Air conditioning for hotels — guest-room systems with individual control, quiet operation, communal areas, phased installation, and getting matched.
- [Commercial Landlord Air Conditioning](https://www.airva.co.uk/business-air-conditioning/landlord): Air conditioning for commercial landlords — why F-gas and TM44 duties follow the agreement rather than occupation, the leak-check threshold most landlords underestimate, MEES, and portfolio specification.
- [Air Conditioning Maintenance Contract: What to Check Before You Sign](https://www.airva.co.uk/business-air-conditioning/maintenance-contract): What a commercial air conditioning maintenance contract should include: visit frequency, F-gas and TM44 duties, response times, parts and refrigerant cover, records, contract length and the red flags in a proposal.
- [Commercial Air Conditioning Maintenance and F-Gas Checklist](https://www.airva.co.uk/business-air-conditioning/maintenance): Two service visits a year is the usual baseline. What each commercial air conditioning visit should measure, F-gas leak-check intervals and the records to keep.
- [Commercial Air Conditioning Installation — Getting the Sequence Right](https://www.airva.co.uk/business-air-conditioning/new-installation): How a commercial air conditioning installation runs — why planning comes before equipment, what the design should contain, phasing around a trading business, and the handover documents to insist on.
- [Air Conditioning Power Consumption in Offices: What Your Fuseboard Can Actually Support](https://www.airva.co.uk/business-air-conditioning/office-power-requirements): How to size office air conditioning around your electrical supply — fuseboard spare ways, single vs three-phase, portable vs split options, and the 12kW TM44 threshold.
- [Office Air Conditioning — Specifying for People at Desks](https://www.airva.co.uk/business-air-conditioning/office): Air conditioning for UK offices — why the thermostat war is a zoning failure, what occupancy density and equipment do to the load, and the compliance duties that follow installation.
- [Commercial Air Conditioning Planning & Compliance](https://www.airva.co.uk/business-air-conditioning/planning-compliance): Why commercial air conditioning has no permitted development right in England, the narrow industrial-land exception, and the building regulations, F-gas and TM44 duties that follow installation.
- [Commercial Air Conditioning Replacement — When and How](https://www.airva.co.uk/business-air-conditioning/replacement): When to replace commercial air conditioning rather than repair it, what the refrigerant rules mean for ageing R-410A plant, whether existing pipework can be reused, and how to phase a swap.
- [Restaurant & Hospitality Air Conditioning](https://www.airva.co.uk/business-air-conditioning/restaurant): Air conditioning for restaurants and cafés — why kitchen extract and dining-room comfort are one air-balance problem, the make-up air question that carries a gas safety risk, and what it costs.
- [Retail Air Conditioning — Comfortable Shops and Stores](https://www.airva.co.uk/business-air-conditioning/retail): Air conditioning for retail premises — keeping customers comfortable, managing shopfront heat gain, and matching with a suitable installer.
- [School & Classroom Air Conditioning](https://www.airva.co.uk/business-air-conditioning/school): Air conditioning for schools and classrooms — overheating and attainment, BB101 and BB93 guidance, holiday-window installation, and matching with a vetted installer.
- [Server Room Air Conditioning: Sizing, N+1 and Cost Drivers](https://www.airva.co.uk/business-air-conditioning/server-room): Why a comfort unit fails a server room: size it from the IT load, plan N+1 redundancy, control humidity and keep it off the office schedule. Plus cost drivers.
- [Split System Air Conditioner Installation Cost: A Room-by-Room UK Price Breakdown](https://www.airva.co.uk/business-air-conditioning/split-system-installation-cost): Split system installation cost in the UK, broken down by room count, equipment vs labour, domestic vs commercial, plus servicing and removal costs.
- [TM44 Inspection Intervals and F-Gas Checks: Legal Minimums vs Recommended Servicing](https://www.airva.co.uk/business-air-conditioning/tm44-inspection-intervals-f-gas-checks): TM44 inspection intervals, F-gas leak-check frequencies by refrigerant charge, and the servicing rhythm on top of them — what UK law requires and what commercial systems actually need.
- [VRF Air Conditioning Systems — How They Work & What They Cost](https://www.airva.co.uk/business-air-conditioning/vrf-air-conditioning): What a VRF (variable refrigerant flow) system is, how VRF differs from VRV, heat-pump vs heat-recovery designs, where VRF beats multiple splits, and UK installed costs.
- [Warehouse Air Conditioning & Cooling Systems](https://www.airva.co.uk/business-air-conditioning/warehouse): Cooling for warehouses — why spot cooling usually beats conditioning the whole volume, workplace temperature duties, stock zones, and getting matched.

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