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Let's start a conversation

Whether you have a question about a specific service, want to understand if our work might suit your household, or simply want to find out more before committing to anything — we're glad to hear from you. There's no obligation attached to reaching out.

Send us a message

We respond to all enquiries within two business days. A real person reads and replies to every message.

A few common questions

How quickly will I hear back?

We aim to reply within two business days. If you write over a weekend or Japanese public holiday, you'll hear from us on the next working day.

What kinds of enquiries do you accept?

Questions about any of our three services, general curiosity about household sustainability in Japan, requests to understand whether our work fits your situation, or feedback about anything on the site — all of these are welcome.

Do I need to commit to anything by contacting you?

Not at all. An initial message is simply the beginning of a conversation. We'll understand your situation, share what might be useful, and leave any next steps entirely to you.

Are you based in Japan?

Yes. Our work is specific to households in Japan, and our on-site visits take place within the country. We have familiarity with regional rebate programmes, local building traditions, and the seasonal considerations that shape how homes in Japan use energy.

Address

〒577-0063 5-11-4 Kawamata, Higashiosaka, Osaka

Phone

+81 6-6849-6153

Hours

Mon–Fri 10:00–18:00 JST