Sized by calculation
Heat load worked out from glazing, orientation, occupancy and construction. Not a guess from the room's floor area.
Air conditioning · Heating · Ventilation
Air conditioning installed properly. Fixed price, in writing, before we start.
Tell us what you need and we will price it. One visit to see the space, a fixed written quote, then F-Gas registered engineers who install to manufacturer spec and maintain what they fit.
Free quote visit, fixed written price within 24 hours. F-Gas registered engineers. No pressure, no hard sell, no obligation.
Get your fixed quote
Three short steps. We reply the same day with a price.
Step 1 of 3
Your details price your job and nothing else. No marketing lists, no third party referrals.
Received. We are on it.
An engineer will reply today. Where we need to see the space first, that visit is free, and your fixed written quote follows within 24 hours.
Why CoolRight
An air conditioning system is only as good as the day it was installed.
Undersized units that run flat out, condensate routed uphill, pipe runs never pressure tested, warranties never registered. Almost every callout we attend on someone else's system traces back to the install, not the equipment. We do the boring parts properly.
Installed to spec
Brazed joints, nitrogen purge, vacuum and pressure test, condensate falls checked, commissioning readings recorded and handed to you.
Quiet and efficient
Inverter equipment selected for sound level as much as output, sited so the outdoor unit is not the thing your neighbour remembers you by.
We maintain what we fit
Annual servicing, filter and coil cleans, refrigerant checks and priority callouts. The same engineers who installed it.
Get a Fixed Quote
Short form. Same day reply. Free fixed quote.
The process
Four stages, and you know the price before anyone drills a wall.
Enquiry and reply
Send the form with your postcode and what you need. We reply the same day, and book a free visit if we need to see the space to price it accurately.
We come and look
Free, and usually 30 to 60 minutes. Heat load, indoor and outdoor unit positions, pipe routes, condensate, power supply and access all agreed with you on site.
Fixed written quote
Within 24 hours. Equipment named and specified, the work itemised, the price fixed. Two or three options where there is a genuine choice to make.
Install and aftercare
Most domestic installs are a day. Commissioning readings, warranty registration, a walkthrough of the controls, then an annual service reminder.
What we do
Installation, servicing, maintenance. Bespoke where it needs to be.
Residential, commercial and bespoke work across London and the whole of the South East. Choose what you are looking at and we will tell you how we approach it.
Wall-Mounted Splits
The single most common domestic install: one indoor unit, one outdoor condenser, a small core drilled through the wall. Fitted well it is quiet, unobtrusive and cheap to run. Fitted badly it drips, rattles, and cools one corner of the room.
We agree unit position with you before anything is cut, keep pipe runs as short and as hidden as the building allows, and box or trunk what cannot be concealed neatly rather than leaving it clipped to a wall.
Get a Fixed QuoteMulti-Split Systems
One outdoor unit serving two to five indoor units, which is usually the right answer for a whole house or a flat where roof and balcony space is limited and a condenser per room is out of the question.
Sizing matters more here, because a multi-split shared across rooms that are never all in use at once behaves very differently from one that is. We calculate simultaneous load rather than adding room totals together.
Get a Fixed QuoteDucted and Cassettes
Where the equipment should be invisible: ceiling cassettes in offices and retail, or fully ducted systems with slim linear grilles in higher-end residential and new-build.
These need to be designed alongside the ceiling and the building services rather than retrofitted around them. We will tell you early if the void you have will not take the unit, rather than after the plasterboard is up.
Get a Fixed QuoteHeating and Heat Pumps
Modern inverter air conditioning is an air-to-air heat pump, and in a well-insulated room it heats far more cheaply than an electric radiator and often more cheaply than gas. Many clients come for cooling and end up using it mostly in winter.
We specify equipment rated for low ambient heating, size for the heating load as well as the cooling load, and set the controls up so the system is genuinely usable year round.
Get a Fixed QuoteVentilation and MVHR
Cooling a sealed room does not make the air in it fresh. Extract ventilation, positive input ventilation and whole-house MVHR all address a different problem: stale air, condensation and humidity.
We install and commission extract and heat recovery systems, and where a property has both a damp problem and a comfort problem we will say which one to solve first.
Get a Fixed QuoteServicing Plans
An air conditioning system that is never serviced loses efficiency quietly, then fails on the hottest day of the year. Filters block, coils foul, condensate trays grow biofilm, and refrigerant charge drifts.
Annual or six-monthly visits, filter and coil cleaning, drain treatment, refrigerant and electrical checks, performance readings recorded so we can see decline before it becomes a breakdown. Plan clients get priority on the diary.
Get a Fixed QuoteRepairs and Regas
Not cooling, leaking water, tripping out, a fault code on the display, or noisy in a way it never used to be. We diagnose before we quote, and we tell you honestly when a repair is not economic against a replacement.
Leak detection, brazed repairs, component replacement and recharge to the correct weighed-in charge. A system that needs regassing has a leak, so we find it rather than topping it up and taking your money twice.
Get a Fixed QuoteCommercial and Comms Rooms
Offices, retail, hospitality, salons, gyms, and the server and comms rooms that cannot be allowed to get warm at all. Different priorities: resilience, noise limits, planning and landlord consents, and working around trading hours.
We handle the consents, work out of hours where needed, and set up F-Gas leak checking and record keeping for systems over the regulated thresholds so your compliance file is not a problem later.
Get a Fixed QuoteBespoke Solutions
Listed buildings, glazed extensions, loft conversions, home cinemas, wine rooms, plant rooms with no obvious condenser position. The jobs other installers decline, usually for good reasons that can still be designed around.
We visit, model the load, and propose something that works within the constraints of the building and the consents available, rather than telling you it cannot be done or fitting something that will not cope.
Get a Fixed Quote
Commercial and landlords
When the cooling goes down, the business goes with it.
Offices, salons, restaurants, retail units, gyms, comms rooms and managed blocks. We install and maintain systems where downtime costs money, and where a failed inspection is a compliance problem rather than an inconvenience.
Planned maintenance schedules, F-Gas leak checking and logging for systems above the thresholds, out of hours installation to avoid trading disruption, and a named engineer who knows your site.
Talk to Us About a Site- Out of hours installation Evenings and weekends, so the floor keeps trading while we work.
- F-Gas logs maintained Leak checks at the required intervals, and records kept ready for inspection.
- Multi-site and portfolio One schedule, one contact, consistent equipment across every unit you hold.
- Priority breakdown response Maintenance clients get first call on the diary, including comms and server rooms.
Where we work
Air conditioning across London and the whole of the South East.
Engineers based across the region, so a quote visit is usually days away rather than weeks. If your postcode is not listed, send it anyway and we will confirm cover the same day.
Greater LondonAll postcode districts
- Central
- North
- East
- South East
- South West
- West
- Docklands
- Outer boroughs
KentNorth and west Kent
- Bromley
- Dartford
- Sevenoaks
- Tunbridge Wells
- Maidstone
- Medway
- Gravesend
SurreyAcross the county
- Kingston
- Croydon
- Sutton
- Epsom
- Guildford
- Woking
- Reigate
EssexSouth and central Essex
- Romford
- Brentwood
- Basildon
- Chelmsford
- Southend
- Ilford
- Grays
Hertfordshire and BuckinghamshireSouth of the counties
- Watford
- St Albans
- Hemel Hempstead
- Borehamwood
- Hatfield
- Amersham
- High Wycombe
Sussex, Berkshire and beyondThe wider South East
- Brighton
- Crawley
- Horsham
- Reading
- Slough
- Windsor
- Oxford
- Southampton
Typical work includes single room wall-mounted splits in period houses and flats, multi-split systems covering several bedrooms from one outdoor unit, ceiling cassettes and ducted systems in offices and retail, air to air heat pumps used for heating as well as cooling, and comms room cooling with monitoring. Send your postcode in the form and we will confirm cover and get you a price.
Check Your Postcode
Quoting six days a week.
Straight answers
Fair questions before you spend money on cooling.
How much does air conditioning cost to install?
A single wall-mounted split in a straightforward room is the entry point, with multi-split and ducted systems rising from there depending on the number of rooms, the equipment chosen and how much making good is involved. We do not price a job we have not seen, because a price given blind over the phone is a guess that gets corrected upwards later. The visit is free and the written quote is fixed.
Do I need planning permission?
For most domestic installs, no. Outdoor units on houses usually fall under permitted development provided siting, size and noise conditions are met, but flats, listed buildings, conservation areas and front elevations are different. We check this when we visit and tell you before you commit.
How much does it cost to run?
Far less than most people expect. A modern inverter split serving a bedroom typically runs at a few hundred watts once it has reached temperature, rather than the full rated input. We give you indicative running costs for the equipment we propose, based on your usage rather than a best case.
Is it noisy?
The indoor unit at low fan speed is quieter than a fridge. The outdoor unit is the one that matters, for you and for your neighbours, so we select on sound power as well as capacity and site it thoughtfully. We will tell you if the only available position is a problem.
Can air conditioning heat my home too?
Yes. Any inverter system we install is a reversible air-to-air heat pump, and in an insulated room it is one of the cheapest ways to heat a space. We size for both loads so it performs properly in January as well as in July.
How often does it need servicing?
Annually for domestic, six-monthly for heavily used commercial systems. It protects the manufacturer warranty, keeps efficiency up, and prevents the two most common failures we attend: blocked condensate drains and fouled coils.
What is F-Gas and why does it matter?
Refrigerant handling is legally restricted to certified engineers and certified companies. An installer without F-Gas certification cannot lawfully work on the refrigerant circuit, and a system installed outside that framework can invalidate both the warranty and your insurance. We are registered, and we will show you the certificate.
How long does an install take?
Most single-room domestic installs are one day. Multi-splits are one to three days, and ducted and commercial work runs longer and is quoted by programme. You will have the dates in writing before we start.
Do you work on systems you did not install?
Yes, for servicing and repair, with the caveat that we will tell you plainly if we find something in the original installation that we cannot warrant. If it needs putting right, we will price that separately and openly.
Comfort today, a brighter tomorrow
Better air. Brighter living. Done right the first time.
Send your postcode and what you need. We will reply the same day, and your fixed written quote follows within 24 hours of us seeing the space.
Free quote. Fixed price before we start. F-Gas registered.