At Inside Systems Limited (ISL), we specialise in professional heating, cooling, and ventilation services for homes and businesses across Invercargill, Southland, and Central Otago. With over 30 years in the industry, our locally owned business is trusted for supplying, installing, and maintaining efficient HVAC systems suited to the Southland climate. Whether you’re upgrading your heat pump, installing underfloor heating, or needing commercial ventilation compliance, our team has the knowledge and experience to help.
Our goal is to provide solutions that improve comfort, reduce energy use, and keep your property safe and compliant with all regulations. From residential installations to complex commercial systems, you can rely on our qualified technicians for reliable results every time.
Air Conditioning and Ventilation Services in Southland
When it comes to staying cool in summer and comfortable all year round, Inside Systems Limited has you covered. We supply and install high-quality heat pumps and air conditioning systems designed to perform in Southland’s colder conditions. Our team also services all major heat pump brands and provides full ventilation system solutions for both homes and businesses.
Heat Pump Installation and Servicing
Our team installs energy-efficient heat pumps to keep your property comfortable throughout the year. We also provide servicing and maintenance to extend the life of your system and ensure it operates at peak efficiency.
Ventilation System Design and Installation
We supply and install ventilation systems that improve indoor air quality while reducing condensation and dampness. These systems are essential for both residential comfort and commercial compliance.
Heating Solutions for Homes and Businesses
At Inside Systems Limited, we offer a wide range of heating options designed to suit Southland’s unique climate and your individual needs. Whether you’re building a new home, renovating, or upgrading your existing system, our experienced team can recommend the right solution. We focus on providing reliable, efficient heating that keeps your home or workplace warm and comfortable while reducing long-term running costs.
We install and maintain underfloor heating, radiator systems, and boilers, including diesel and coal models. With additional services such as boiler efficiency testing and flue gas analysis, you can be confident your heating system is safe and cost-effective. We also provide advanced geothermal heat pump solutions for customers seeking an energy-efficient, eco-friendly option.
Underfloor and Radiator Heating
Underfloor heating and radiators provide consistent warmth and an even temperature throughout your property. We offer both installation and ongoing servicing for these systems.
Boiler Installation, Servicing, and Testing
We install and service diesel and coal boilers, carrying out efficiency testing and flue gas analysis to ensure safe, reliable performance.
Geothermal Heat Pumps
Geothermal heat pumps are an eco-friendly heating option, drawing heat from the ground for reliable year-round comfort. Our team can install and maintain these systems for residential or commercial use.
Building WOF and IQP Testing for HVAC Systems
In addition to installation and servicing, Inside Systems Limited provides Building Warrant of Fitness (BWOF) and Independent Qualified Person (IQP) testing. These services are legally required under the Building Act 2004 to ensure systems remain safe, healthy, and compliant. Our team certifies mechanical ventilation (SS9) and works with certification requirements such as 12A Certification.
Regular IQP testing is critical for HVAC systems, as it helps prevent issues such as mould, bacteria growth, and inefficient energy use. Poorly maintained systems can impact air quality and pose health risks to building occupants. By scheduling regular BWOF and IQP testing with us, you can ensure your systems meet compliance standards while keeping your building safe and comfortable.
Trusted HVAC Systems
At Inside Systems Limited, we supply and install reliable, high-performing HVAC solutions from a range of trusted suppliers. From split systems for homes to large-scale commercial heat pumps, we install quality products designed for long-term comfort and efficiency. We can advise you on the right system for your property and provide full installation, testing, and maintenance support.
As Southland’s climate can be harsh, choosing a system built to perform in low temperatures is essential. With our expertise, you’ll enjoy peace of mind knowing your system is designed and maintained to the highest standard.
Frequently Asked Questions
Do you install both residential and commercial heating systems?
Yes, we provide complete heating and cooling solutions for homes, businesses, and large commercial facilities across Southland and Central Otago.
Can you service my existing heat pump?
Absolutely. We service and maintain all major heat pump brands to ensure efficient, reliable performance.
Do I need regular BWOF and IQP testing?
Yes, if you own or manage a commercial property with HVAC systems, testing is a legal requirement under the Building Act 2004.
What heating options do you recommend for new builds?
Underfloor heating, radiators, and heat pumps are popular options for new homes. We’ll help you choose the best solution for your property and budget.
Looking for professional heating and cooling solutions in Invercargill, Southland, or Central Otago? Contact us today to request a free quote or book a service.
