Professional air conditioning, ventilation and MVHR services across Sussex. Free quotes and straightforward advice for homes and businesses.
Ernest Air Cooling provides expert air conditioning installation, ventilation solutions, and MVHR systems tailored for homes and businesses throughout Brighton, Worthing, and all of Sussex.
Trusted across the South East for 20+ years — we deliver expert installation, ongoing support, and unbeatable reliability.
Over 20 years of hands-on industry experience
Tailored installations for homes, offices & server rooms
Local, fast-response service across Sussex, Surrey & London
Certified engineers with ongoing training & development
Free quotes, honest advice & no pressure to commit
Every system we install is a heat pump — 3-4x more efficient than electric heaters and comparable in cost to gas. Cool in summer, warm in winter, from a single system.
We are a dedicated team of F-Gas certified technicians committed to delivering top-quality cooling and ventilation solutions. With over 20 years of experience and a passion for excellence, we ensure that every air conditioning project across Sussex is executed with precision and care.
As an authorised Daikin dealer and certified installer for premium HVAC brands, we offer manufacturer-backed warranties and expert installation across Sussex.
Create the perfect indoor climate in your Sussex home with our energy-efficient Daikin and Mitsubishi Electric residential air conditioning systems. We offer quiet, discreet units that complement your home's aesthetic.
Keep your customers and employees comfortable with our Toshiba and Mitsubishi commercial air conditioning solutions. From retail spaces to offices across Sussex, we design systems that meet your specific needs.
Improve indoor air quality while reducing energy costs with our Nuaire and Vent-Axia Mechanical Ventilation with Heat Recovery systems, perfect for modern, well-insulated Sussex properties.
Ensure your systems run efficiently with our comprehensive maintenance packages. Our Sussex-based technicians provide prompt, professional service to extend the life of your equipment.
Specialized air conditioning solutions for garden offices and summer houses, ensuring your workspace remains comfortable year-round without overheating in summer.
Precision climate systems for wine cellars and storage rooms with specialized humidity control technology, maintaining the optimal 60-70% humidity and 11-14°C temperature required for proper wine preservation.
"Tim was brilliant from start to finish and almost felt like your best mate was helping you out/doing the job. I highly recommend!"
"From initial phone call to finalising the installation, Tim was great at installing my new air conditioning system. Professional throughout."
"We had a MVHR system installed providing fresh air to four bedrooms in our house. The installation was challenging but Tim found solutions to every problem!"
"Needed to have the AC installed in the business premises and was very lucky to have found Tim. From the initial site visit, he was professional, knowledgeable and provided excellent service."
"From first phone contact and initial site visit, to answering my many questions and helping me decide on the various options, Tim was excellent. The installation was completed on schedule with minimal disruption."
Take a look at some of our recent installations across Sussex
Complete humidity and temperature control solution for a private wine collection, maintaining optimal storage conditions year-round.
Complete Mitsubishi mini-split system installation for a contemporary garden office, providing year-round comfort for remote working.
Expert insights on air conditioning, ventilation, and HVAC for Sussex homes and businesses
A detailed comparison of MVHR, MEV, and PIV ventilation systems. Which is best for your UK home? Costs, efficiency, building regulations, and honest advice from 20+ years of experience.
Read more →
Yes — but it takes planning, the right approach, and someone who's done it before. Planning rules, bats, humidity, building preservation, and practical solutions from 20+ years of heritage installations.
Read more →
Ernest Air Cooling has earned Daikin UK Authorised Dealer status, bringing world-leading VRV systems, air conditioning, and R-32 technology to Sussex homes and businesses.
Read more →Get your free, no-obligation quote for air conditioning installation in Sussex.
What type of property is this for?
Click to see typical costs for your property type
Prefer to talk? Call us directly:
"Excellent service from start to finish. Very professional team."
Sarah M. • Brighton
"Quick response and great workmanship. Highly recommend."
James P. • Worthing
Air conditioning installation costs in Sussex typically range from £1,000 for a basic single room system to £5,000+ for multi-room solutions. We provide free, no-obligation quotes tailored to your specific requirements.
Most domestic air conditioning installations in Sussex don't require planning permission, but there are exceptions for listed buildings or conservation areas. Our experts can advise on your specific situation during our initial consultation.
Modern air conditioning systems from Daikin, Mitsubishi Electric, and Toshiba are highly energy-efficient, with SEER ratings of 6.0 or higher. We specialize in A+++ rated systems that can reduce energy consumption by up to 50% compared to older models.
Air conditioning systems should be professionally serviced annually to ensure optimal performance. Our maintenance packages include filter cleaning, refrigerant checks, and full system inspections to extend the lifespan of your equipment.
Yes, we specialize in air conditioning for garden offices and summer houses. These spaces often overheat in summer due to large windows and insulation. We install compact wall-mounted systems that provide efficient cooling in summer and heating in winter, making your garden workspace comfortable year-round.
For wine cellars, we install specialized climate control systems with integrated humidity management. These systems maintain precise temperature (typically 11-14°C) and actively control humidity levels (60-70%) to prevent cork drying, mold growth, and label damage. Our solutions include dedicated humidifiers/dehumidifiers paired with sophisticated sensors for consistent conditions that protect your wine collection's value and integrity.
MVHR (Mechanical Ventilation with Heat Recovery) extracts stale air from kitchens and bathrooms while recovering up to 90% of the heat to warm incoming fresh air. It costs just £40-£60 per year to run and can reduce heating bills by 15-30%. MVHR eliminates condensation, prevents mould, and filters out pollen and pollution—ideal for modern, well-insulated Sussex homes. Learn more about our MVHR installations.
