Our heating engineers carry out their work in accordance with the building regulations, manufacturer’s instructions and approved industry standards in UK and Ireland.

All OSA Engineers are fully qualified and accredited, so you have peace of mind your OSA engineer is competent. Regular OSA inspections are carried out to ensure their work meets the highest standards.

OSA and our OSA engineers can provide advice to ensure you get the best energy efficient and cost effective heating system in your home.

Homeowners are at the heart of our business, that’s why the team at OSA are here to listen to your needs, provide the best possible solutions, giving you the confidence that your home is safe and compliant.

We are committed to creating an inclusive and diverse culture. Our priority at OSA is to make sure we and our engineers listen to what you, our customers, need.