Frequently Asked Questions (Technical & Local)
A: In most domestic cases, no. Under “Permitted Development” rights, you can install air conditioning without planning permission if the external unit is:
Located more than 1 metre from your property boundary.
Under 0.6 cubic metres in volume (standard single-fan units meet this).
Not installed on a pitched roof. However: If you live in a Listed Building or a strict Conservation Area (common in Warwick and Stratford-upon-Avon), you will likely need consent. Optim PRO has extensive experience working with local councils to design discreet systems that comply with heritage regulations.
A: Modern systems are incredibly efficient. On average, a domestic AC unit costs between 15p and 35p per hour to run for cooling, depending on your energy tariff. Did you know? Using your air conditioning to heat your room in winter can be 300-400% more efficient than a traditional gas boiler or electric radiator, potentially saving you money on winter energy bills.
Not at all. In fact, it is often quieter than a standard wall unit. Because the fan motor is tucked away in your loft or ceiling void—rather than being in the room with you—the noise levels are whisper-quiet (often as low as 20-25 decibels, which is quieter than a library).
We offer the longest warranty in the Midlands. As approved installers for major brands like Daikin and Mitsubishi Electric, we can offer extended warranties of up to 7-10 years on parts and 1 year for labour, provided the system is serviced annually by our qualified engineers. Standard installers often only provide 3 years.
Split System: One outdoor unit connects to one indoor unit. Perfect for a single bedroom or living space.
VRF (Variable Refrigerant Flow): A commercial-grade solution where one outdoor unit runs many indoor units. It is intelligent enough to heat one room while cooling another simultaneously. This is ideal for offices and large luxury homes.
Yes. From our HQ in Nuneaton, we cover the entire Midlands region including Birmingham, Coventry, Wolverhampton, Leicester, Warwick, and Stratford-upon-Avon.