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Mon – Fri: available from 08:00 – 17:00
Address: 36 Brook Road, Rayleigh, Essex, SS6 7XJ
Email: enquiries@evergreenac.co.uk
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If you’re considering installing air conditioning in your home in Hertfordshire, one of the first questions you’ll ask is how much does it actually cost in 2026? The short answer? For a typical residential room, supply and installation usually starts from around £1,900-£2,400, depending on room size and system type you choose.
Below is a clear, up to date breakdown based on real installation pricing in Hertfordshire.
*All prices shown are estimates and subject to site survey. Final quotation will depend on room size, system specification, installation complexity and electrical requirements.
Several factors influence the final cost:
Room size (m²)
Pipework distance
Access requirements
System type (wall-mounted vs ducted)
Electrical upgrades (if required)
Optional add-ons:
Wi-Fi control: approx. £100
Premium low-noise units
Annual maintenance plans
→ Find out more about our Home Air Conditioning Installations
This isn’t just about summer comfort anymore. Modern air conditioning systems are actually high-efficiency heat pumps meaning they can heat and cool your home.
Here’s why more Hertfordshire homeowners are installing them:
In winter, modern systems provide:
Fast, efficient heating
Lower energy consumption compared to traditional electric heaters
Targeted room heating without warming the whole house
They’re often cheaper to run than gas when heating a single room.
Air source heat pump technology can be:
Up to 300-400% efficient
Faster to heat a room than traditional radiators
More controllable room by room
Instead of heating your whole home, you heat only the spaces you use. That means better control and potentially lower energy costs.
Modern air conditioning systems:
Filter dust and allergens
Reduce pollen levels
Improve airflow circulation
Control humidity
This is particularly beneficial for:
Allergy/asthma sufferers
Bedrooms and children’s rooms
Air conditioning is becoming more desirable in:
New build properties
Loft conversions
Garden offices
Home gyms
High end residential homes
In Hertfordshire’s competitive property market, climate control is becoming a premium feature.
Running costs depend on how often you use the system and the size of the unit installed. For a typical bedroom system, cooling usually costs around 30-50p per hour, making it far more affordable than many people assume. When used for heating, modern air conditioning systems can often be cheaper to run than traditional electric heaters because they operate as high-efficiency heat pumps rather than generating direct heat.
With Wi-Fi control and smart scheduling, you can programme the system to run only when needed, helping maximise efficiency and keep running costs under control.
For many Hertfordshire homeowners, air conditioning is no longer viewed as a luxury, it is a practical year round solution. Modern systems provide effective cooling in summer and energy efficient heating in winter, while also improving indoor air quality and offering smart temperature control. The ability to heat or cool individual rooms gives homeowners greater comfort and flexibility throughout the year. With installation starting from around £1,900, air conditioning is more accessible than many people expect and can significantly improve everyday comfort and property appeal.
With over 16 years of experience, Evergreen Air Conditioning has built a strong reputation as a trusted local specialist serving Hertfordshire and surrounding areas. As approved installers for leading manufacturers, we offer up to a 10-year warranty on selected systems, giving homeowners long term peace of mind. Our experienced local surveyors provide professional on site assessments, accurate system design, and fixed quotations, ensuring every installation is correctly sized, energy efficient, and built to last. When investing in air conditioning, experience, quality installation, and ongoing support make all the difference.
Mon – Fri: available from 08:00 – 17:00
Address: 36 Brook Road, Rayleigh, Essex, SS6 7XJ
Email: enquiries@evergreenac.co.uk
For a typical bedroom installation in Hertfordshire, prices usually start from around £1,900 for a single wall-mounted unit. Larger rooms, open-plan spaces or multi-room systems will cost more. The final price depends on room size, access, and system type following a site survey.
Modern air conditioning systems are highly energy efficient. Cooling typically costs around 30-50p per hour for a standard bedroom unit. When used in heating mode, many systems are more efficient than traditional electric heaters and can help reduce reliance on gas.
Yes. Modern systems are heat pumps, meaning they provide both cooling in summer and efficient heating in winter. Many homeowners in Hertfordshire now use air conditioning as their primary heating source in well-insulated rooms.
Most single-room installations are completed within one day. Larger or multi-room systems may take longer depending on property size and layout.
In most residential properties in Hertfordshire, planning permission is not required. However, listed buildings or conservation areas may have additional restrictions. Your local surveyor will confirm this.
