Commercial Air Conditioning & Electrical Work in Tokyo — for shops, offices and building owners
We install, replace and repair air conditioning, and handle interior fit-out and electrical wiring for shops, restaurants, offices and apartment buildings (owners and management companies). We do not take work in private homes. Site surveys and quotations are free in principle (repairs, small jobs and night-time site visits may be charged; we tell you in advance). English support via this page, or email info@poranoplaza.com.
Request a Quote
No obligation. An English-speaking staff member will reply.
Please contact us through the form below, not by phone.
Our phone line is answered in Japanese only. When you send the form, an English-speaking staff member will reply by email — or call you back in English if you prefer. Telling us how much Japanese you speak helps us assign the right person.
What we do
Licensed, in-house crew. One point of contact from survey and quote to construction.
Air Conditioning
Installation, replacement and repair of AC units for shops, restaurants, offices and apartment buildings — including piping, outdoor units and dedicated wiring.
Interior Renovation / Fit-Out
Interior works for restaurants, bars, salons and offices — walls, ceilings, layout changes, together with all wiring.
Electrical Work
Wiring, outlets, lighting, breaker panels and power upgrades, done together with your AC or interior project or on their own.
Service area
Based in Tokyo. We cover the greater Tokyo region:
How it works
From first contact to finished work — here is what to expect.
Send the form
Tell us what you need in English. It takes about 2 minutes.
We reply in English
An English-speaking staff member contacts you by email or phone.
Survey & quotation
We visit the site if needed and send you a written quote. The quote is free in principle. A site visit for a repair, a small job or at night may have a survey fee — we always tell you before we come.
Construction
We carry out the work on the agreed date, with one point of contact throughout.
What affects the price
Every building is different, so we quote after an on-site survey (usually free; we tell you in advance if a fee applies). These are the things that move the price most:
- Piping route and lengthA standard run is short and straight. Going around the building, or down from an upper floor, means more piping and more time.
- Drilling the holeIf there is no hole for the piping yet, we make one. A concrete wall takes longer than a wooden one.
- A dedicated circuitMany rooms have no dedicated outlet for an air conditioner. We can run a new circuit from the breaker panel on the same visit.
- Where the outdoor unit goesA balcony is the simple case. No balcony, a road-facing window, a wall bracket, a roof or an upper floor all change the work.
- Removing the old unitTaking out and disposing of the unit that is already there.
- How many unitsSeveral units installed on the same visit cost less per unit than one at a time.
Tell us the room, which floor it is on, and whether there is already a hole and an outlet – we can give you a rough idea by email before we visit.
Frequently asked questions
There is no hole for the piping and no dedicated outlet. Can you still install an air conditioner?
Yes. We are an electrical contractor as well as an air conditioning installer, so drilling the hole and running a new dedicated circuit from the breaker panel are part of the same job. We check the wall and the breaker panel during the site survey and put everything in one quote.
Can you move an existing air conditioner to another room or another site?
Yes. A relocation means pumping down the refrigerant, removing the unit, re-installing it in the new position with new piping, and closing up the old hole. If the unit is already old we will tell you honestly when replacing it is better value than moving it.
My air conditioner is not cooling. Do you repair, or only replace?
We look at it first. A gas leak, a blocked drain or an electrical fault can often be repaired. If the unit is old and the repair comes close to the price of a new one, we say so before you spend anything.
Do you work in private homes or rented rooms?
No. We work for businesses — shops, restaurants and offices — and for building owners and management companies. For an air conditioner in the home or room you live in, please ask your landlord or an electronics store.
Can I get service in English?
Yes. Send the form on this page and an English-speaking staff member will reply by email. Our phone line is answered in Japanese only, so please use the form rather than calling.
Which areas do you cover?
Tokyo and the surrounding prefectures – Saitama, Chiba and Kanagawa, including Yokohama and Kawasaki.
Contact us
Depending on the scale and scope of the work, we may not be able to take it on. Please tell us the approximate scale first. You can also email us at info@poranoplaza.com (photos welcome).
All fields in English are fine. We will get back to you as soon as possible.