Expert installation, repair & maintenance across Sussex & Surrey
Looking for expert air conditioning installation? At Ernest Air Cooling, we provide affordable, high-quality air conditioning solutions for homes and businesses across the South East—from Central London to Brighton and beyond.
With over 20 years of hands-on experience, we've built a reputation for reliability, efficiency, and top-tier workmanship. Whether you're cooling a single room or an entire property, we'll design and install a system that suits your needs and your budget.
Modern units with high energy efficiency ratings to reduce running costs
Certified installer for Daikin, Mitsubishi Electric, Samsung, Toshiba and more
Professional installation with smart, discreet unit placement
From initial design to installation and ongoing maintenance
From initial consultation to ongoing maintenance, we provide complete air conditioning solutions
Complete home cooling solutions from single room to whole-house systems
Specialized cooling for offices, retail, restaurants and industrial spaces
Climate control for server rooms, wine cellars, and temperature-sensitive environments
Fast, reliable repairs for all air conditioning brands and systems
Regular servicing to ensure optimal performance and system longevity
Responsive service when you need emergency air conditioning repairs
We install and service the industry's most reliable air conditioning systems
As certified installers for these leading manufacturers, we offer extended warranties and manufacturer-backed support for all our air conditioning installations throughout Sussex and the South East.
"Exceptional service from start to finish. Tim recommended the perfect air conditioning system for our home in Brighton. Installation was quick, tidy, and the system works beautifully. Highly recommend Ernest Air Cooling!"
Sarah Thompson
Residential Customer, Brighton
"We needed air conditioning for our office in Horsham and Ernest Air Cooling delivered exactly what we needed. The team was professional, knowledgeable, and completed the installation with minimal disruption to our business."
Mark Richardson
Business Owner, Horsham
Common questions about air conditioning installation and services in Sussex
Air conditioning installation costs vary depending on the system type, number of units, and complexity of installation. For a single room split system, prices typically start from £1,200 including installation. We provide detailed, no-obligation quotes after assessing your space and needs.
Installation timeframes vary by project scope. A standard single room split system typically takes 1 day to install. Multi-split systems serving 2–4 rooms usually take 1–2 days, while larger commercial installations may require 3–5 days or more.
In most cases, domestic air conditioning installations don't require planning permission as they fall under permitted development. However, there are exceptions for listed buildings or conservation areas. We can advise on planning regulations specific to your property.
Modern air conditioning systems are highly energy efficient, with many units achieving A+++ energy ratings. The systems we install use inverter technology that can reduce energy consumption by up to 30–50% compared to older units.
Whether you're looking to cool a single room or need a complete commercial system, our team is ready to deliver the perfect air conditioning solution for your space and budget.