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An air-conditioning indoor unit installed neatly on the wall of a bright modern room

Based in Colchester, serving North Essex and South Suffolk

Air conditioning that heats as well as it cools

Heating. Cooling. Done properly.

Colne Climate is James Keefe: a one-man air-conditioning business built on careful surveys, tidy installations and honest advice. Comfortable rooms all year round, for homes and businesses across North Essex and South Suffolk.

James is a qualified electrician, so you get an all-in-one service, from install to cool or warm spaces.

  • One person, start to finish

    James surveys, installs and returns for servicing. No call centre, no rotating subcontractors.

  • Sized properly, not guessed

    Sizing is confirmed on site from the fabric, the glazing and the way you use the room, never from floor area alone.

  • Clear pricing, in writing

    You get a written proposal covering equipment, installation and price before any work starts.

Running-cost calculator

What would it cost to hold your room at 20°C?

Adjust the room, the weather and your electricity price to see an indicative running cost for heating or cooling. It is a guide to help you plan, not a quotation.

Tell us about the room

Every field affects the estimate. Change anything and the numbers update instantly.

20.0°C

Fetching the current outside temperature…

20°C
Gentle cooling to 20°C
Per hour
£0.06
Per day (6h)
£0.35
Per 30 days
£10.55
Estimated load
0.98 kW
Electrical input
0.23 kW
Assumed EER
4.20
Indicative capacity class
2.0 kW

These figures are an indicative estimate for guidance only. They are not a quotation, a heat-loss calculation or a system design. Real running costs depend on your building, your habits, your equipment and your electricity tariff. James confirms sizing and expected performance at survey.

Cost across the year

How the estimated hourly cost changes as the outside temperature changes, with your settings held constant.

  • Heating
  • Cooling
  • Selected temperature
View the chart data as a table
Estimated cost per hour at each outside temperature
Outside temperatureModeCost per hour
-5°CHeating£0.14
0°CHeating£0.09
5°CHeating£0.06
10°CHeating£0.03
15°CHeating£0.01
20°CCooling£0.06
25°CCooling£0.09
30°CCooling£0.13
35°CCooling£0.18

Where James works

Colchester and roughly 25–40 miles around it

Colchester, Ipswich, Sudbury, Braintree, Clacton-on-Sea, Harwich, Manningtree, Halstead, Witham and the villages in between. Coverage depends on the type and size of the project.

Common questions

Air conditioning, answered plainly

The questions James is asked most often, answered without jargon or sales pressure.

Yes. Modern air-conditioning systems are heat pumps, so most units can both cool a room in summer and heat it in winter. The same indoor unit reverses its operation, which is why many people use them all year round rather than only in hot weather.