At petri plumbing & heating, inc., our friendly and reliable team of plumbers are always training on the latest technology to provide you with the best innovation and most energy and water efficient boiler for your home the skills gained in our. If you are happy to proceed with the quote, your local engineer will install your new boiler. Giving you an added sense of convenience-. Prompt, professional and efficient! dante arrive a few minutes before schedule, and promptly.