Air conditioning & refrigeration guides.
Fault & symptom guides
What a specific symptom usually means, what you can safely check yourself, and when it needs an F-Gas engineer.
Air Conditioning Not Cooling Properly
A unit that runs but never quite cools the room is one of the most common calls we get, and the cause is rarely the compressor.
Read guideAir Conditioning Blowing Warm Air
Warm air from a unit that should be cooling usually means either a settings mix-up or a refrigerant fault, and telling the two apart matters.
Read guideAir Con Leaking Water Indoors
Water appearing under or around an indoor unit is almost always a drainage problem rather than a refrigerant one, and it's often an easy fix.
Read guideAir Conditioning Smells Musty
A sour, damp smell when the AC kicks in is almost always biological growth on the indoor coil, not a fault with the refrigeration circuit itself.
Read guideNoisy Outdoor Air Conditioning Unit
Not all outdoor unit noises mean the same thing, and the type of noise usually points straight to the cause before an engineer even arrives.
Read guideAir Con Tripping the Electrics
When an air conditioning unit trips a breaker or RCD, the fault is almost always within the unit itself rather than the household wiring behind it.
Read guideAir Conditioning Not Turning On
A unit that shows absolutely no signs of life is usually a power or control fault rather than anything wrong with the refrigeration side.
Read guideAir Conditioning Icing Up
Ice on an air conditioning system is a symptom, not the fault itself, and running the unit through it can make the underlying problem worse.
Read guideSigns of a Refrigerant Leak
Refrigerant leaks rarely announce themselves clearly, and usually show up as a gradual decline in performance rather than a sudden dramatic failure.
Read guideWhat Air Conditioning Error Codes Mean
Flashing lights and displayed error codes are the system telling you roughly where the fault sits, well before an engineer even connects test equipment.
Read guideWeak Airflow From Air Conditioning
Weak airflow is often the earliest warning sign of a bigger problem, and it's worth acting on rather than just turning the unit up.
Read guideCold Room Not Holding Temperature
A cold room that won't hold its set temperature puts stock at risk quickly, and the cause is usually one of a short, predictable list.
Read guideDisplay Fridge Icing Up
Frost building up inside a display fridge is a visible symptom of the unit fighting a losing battle against warm, humid air or a stuck defrost cycle.
Read guideCommercial Ice Machine Not Making Ice
An ice machine that's stopped producing, or is producing far less than usual, is a fast-moving problem for any bar or hospitality business, but the causes are usually identifiable quickly.
Read guideCellar Cooling Running Too Warm
A cellar running a few degrees warmer than it should can be enough to affect beer quality and cause cask issues well before anyone notices a total system failure.
Read guideCommercial Freezer Running Constantly
A freezer that never cycles off is working far harder than it should, and beyond the noise, it usually means higher running costs and faster wear.
Read guideSystem & comparison guides
Choosing between system types, refrigerants and specifications without the sales spin.
Wall-mounted vs ceiling cassette air conditioning
The two most common indoor unit types work very differently once you look past the price list.
Read guideMulti-split vs single-split air conditioning
One outdoor unit running several rooms, or a separate system for each — the choice affects cost, control and what happens if something fails.
Read guideDucted vs wall-mounted air conditioning
Ducted systems hide almost entirely from view but demand far more from the building; wall-mounted units are visible but far less invasive to fit.
Read guideVRF vs split systems for commercial buildings
VRF scales to large, zoned commercial buildings; split systems stay simpler and cheaper for smaller or standalone spaces.
Read guideFixed air conditioning vs portable AC units
Portable units are a low-commitment stopgap; fixed split systems are the only realistic long-term answer for a room used regularly.
Read guideAir source heat pump vs air conditioning
A dedicated air source heat pump and a reversible air conditioning system share the same core technology but are designed around different priorities.
Read guideR32 vs R410A refrigerant explained
R32 has largely replaced R410A in new air conditioning systems, and the difference matters for efficiency, environmental impact and future-proofing.
Read guideHow to size air conditioning correctly (BTU basics)
Correct sizing is about matching output to real heat gain, not picking the biggest unit you can afford.
Read guideInverter vs fixed-speed air conditioning
Inverter technology adjusts compressor speed to demand rather than switching on and off at full power, and it's now the standard for good reason.
Read guideCold room vs upright freezer for small kitchens and shops
A walk-in cold room and a bank of upright freezers solve the same storage problem in very different ways, and the right answer depends on volume and layout.
Read guidePanasonic vs LG vs Midea air conditioning compared
We fit Panasonic, LG and Midea day to day, and each has genuine strengths rather than one being straightforwardly 'best'.
Read guideAir conditioning noise levels explained
A quiet spec sheet doesn't guarantee a quiet installation — siting and setup matter as much as the dB rating on the box.
Read guideCost & process guides
Straight answers on what work involves, how long it takes and what drives the price up or down.
What Drives the Cost of Air Conditioning Installation
There's no single price for air conditioning — here's what a quote actually reflects.
Read guideHow Much Does It Cost to Run Air Conditioning?
Modern inverter systems are far cheaper to run than older units — here's what affects your electricity bill.
Read guideHow Long Does Air Conditioning Installation Take?
Most single-room installs are done in a day — larger or more complex jobs take longer.
Read guideWhat's Involved in an Air Conditioning Service?
A service is more than a filter wipe — here's what should be checked and what changes the price.
Read guideF-Gas Regulations Explained for Business Owners
If your business runs air conditioning or refrigeration, F-Gas rules bring real legal duties — here's what they mean in practice.
Read guideDo You Need Planning Permission for Air Conditioning?
Most domestic installs fall under permitted development, but conservation areas, listed buildings and flats have extra rules.
Read guideWhat Affects the Cost of a Cold Room Installation?
Cold room costs come from four main areas: the panels, the door, the refrigeration pack and the floor or groundwork.
Read guideWhat a Planned Maintenance Contract Actually Covers
A good maintenance contract is scoped to your equipment, not a generic package — here's how we set one up.
Read guideWhat to Expect From an Emergency Callout
When equipment fails unexpectedly, here's how we triage the call and what happens once an engineer is on site.
Read guideHow Air Conditioning Warranties Work
Manufacturer warranties are valuable, but usually come with conditions around installation and servicing you need to meet.
Read guideHow to Choose an Air Conditioning Installer
A cheap quote isn't a bargain if the installer isn't certified or the job isn't done properly — here's what to check.
Read guideRetrofitting Air Conditioning in an Older Property
Period properties bring specific challenges for AC installation — here's how we work around solid walls, lofts and conservation areas.
Read guideHow often should air conditioning be serviced?
Once or twice a year covers most systems, but comms rooms, kitchens and dusty industrial sites need more.
Read guidePlanned maintenance versus reactive repairs: which actually costs less?
Reactive repair looks cheaper until you count downtime, stock loss and the shortened life of the equipment.
Read guideWhat a commercial refrigeration service should include
A real refrigeration service is measurable work with recorded readings, not a quick look and a signature.
Read guideSector & property-type guides
How we approach air conditioning and refrigeration in specific buildings and trades.
Air conditioning for offices
Comfort cooling for offices has to cope with variable occupancy, IT heat loads and long low-noise operating hours.
Read guideAir conditioning for restaurants and takeaways
Kitchen heat, extract ventilation and front-of-house comfort all interact, so restaurant cooling needs designing as one system, not an afterthought.
Read guideAir conditioning for retail shops
Retail units lose conditioned air every time the door opens, and large glazed shopfronts add heat gain most homes and offices never see.
Read guideAir conditioning and cellar cooling for pubs and bars
A pub needs cool, comfortable bar and function areas above ground and a stable cold cellar below it, and the two systems rarely have much to do with each other.
Read guideAir conditioning for cafes and coffee shops
Small floor plans, a hot espresso machine running all day and customers wanting to linger make cafes a specific cooling challenge.
Read guideAir conditioning and refrigeration for convenience stores
Convenience stores run display fridges and freezers all day next to customers browsing, so comfort cooling and refrigeration have to work together, not against each other.
Read guideRefrigeration and cooling for butchers and farm shops
Butchers and farm shops depend on precise, reliable temperature control across cold rooms, display counters and prep areas — there's little margin for error with fresh meat.
Read guideAir conditioning for hair salons
Hair dryers, straighteners and steam from colour work push heat and humidity into a small space where noise and discretion both matter.
Read guideAir conditioning for gyms and fitness studios
Gyms produce heavy latent heat load from exercising bodies, and cooling alone doesn't solve stale air — ventilation matters just as much.
Read guideAir conditioning for landlords, HMOs and lettings
Landlords have to balance tenant comfort, maintenance obligations and lease or freeholder rules that owner-occupiers never have to think about.
Read guideAir conditioning for home offices and garden rooms
Garden rooms and converted home offices often have more glazing and less thermal mass than the rest of the house, so they overheat faster and need their own dedicated cooling.
Read guideClose-control cooling for server and comms rooms
Server rooms need cooling that runs continuously, holds a tight temperature band and tells someone immediately if it fails — comfort cooling logic doesn't apply.
Read guideCan't find your answer?
Call Ted for straight advice — no obligation, no sales script.
