The SOWA Group's electrical work specialist
Electrical work is
where we're strong.電気工事に、強い。
We move right away and meet tight deadlines. We make no excuses on awkward sites, and we finish the details no drawing shows. We are a Nagoya electrical contractor that does the work with our own hands, from temporary power to the energizing and lighting test.
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Our Promise
Four promises
we keep on site.現場で守る、4つの約束。
From the wiring inside the ceiling to checking that the lights come on, everyone who works on site keeps these four promises, on every site.
We move right away.
When you contact us, we first ask about the situation. Anything we can tell from photos or drawings we check on the spot, and we decide who can go and how the work will run before anything else.
We meet tight deadlines.
Even when the schedule is tight, we work back from the opening or handover date and reorganize our people and plan. We finish by the day we promised.
No excuses.
A cramped ceiling, an old building, no drawings. We don't blame others when a job is awkward or difficult; we investigate on site and find the answer.
We finish the details no drawing shows.
Cable routes, bundling, the direction and height of fixtures, circuit labels on the panels. We take care with the finish, right down to what the drawings don't show.
Works
Four categories of electrical work電気工事の4つの区分
From the main feeders that carry power through a building to lighting and outlets, communications wiring, and the fire and life-safety systems that protect people in an emergency. We take on a building's electrical work as one package.
01 / Power
Main feeders & power
Installing and replacing distribution boards and power panels, laying main feeders, and power supply for air conditioners and production equipment. We also handle work around generators.
- Distribution boards
- Power panels
- Main feeders
- Equipment wiring
02 / Lighting
Lighting & outlets
LED lighting upgrades, moving and adding lights for sales floor refits, lighting tracks and dimming, and adding outlets and circuits.
- LED upgrades
- Lighting tracks
- Dimming
- Added circuits
03 / Signal
Low-voltage & communications
Intercoms, LAN and telephone wiring, wiring for TV, POS and security cameras, and in-store PA systems.
- Intercoms
- LAN
- Telephone conduit
- PA systems
04 / Safety
Fire & life-safety systems
Exit sign lights and emergency lighting, automatic fire alarm systems and emergency broadcast. We update them as part of store renovation and maintenance work.
- Exit sign lights
- Emergency lighting
- Automatic fire alarm
- Emergency broadcast
We have carried out renovation and maintenance work for electronics retail stores in 12 prefectures, from the Kanto to the Chugoku region. See projects by prefecture
For a new large electronics retail store in Tokyo, we handled the electrical work across five sales floors, from main feeders to lighting, low-voltage and in-store PA. We also work on new builds and renovations of factories, hospitals, welfare facilities, nursery schools and apartment buildings.
Buildings
Type of work
Reasons
Why we're strong in electrical work:
three reasons電気工事に強い、3つの理由
What we have built up in stores that stay open, factories and new-build sites.
Repeated work on sales floors that stay open
In renovation and maintenance work for electronics retail stores, we have handled LED lighting upgrades, adjusting and adding lights for sales floor refits, and updating exit sign lights and automatic fire alarm systems. We have done this work in 12 prefectures, from the Kanto to the Chugoku region. Before we start, we agree with the store which circuits to shut off and when.
We measure and check before handover
After wiring, we measure insulation resistance, earth resistance and voltage, and check the circuits and lighting before energizing and handing over. When an escalator had an earth leakage fault, we traced the cause and repaired it.
Electrical and HVAC together, within the group
On a new welfare facility, SOWA SERVICE handled HVAC, ventilation, plumbing and fire suppression, while we handled the electrical work. When air conditioners are replaced, the group also coordinates the power supply work so everything runs to one schedule.
From Start to Light
What goes into
turning on a light?灯りがつくまでに、何があるだろう。From the temporary work that brings power to the site to the energizing and lighting test. Let's follow, step by step, the work that goes on inside ceilings and walls.
01Temporary power
First, bring power to the site
We set up a temporary distribution board and provide lighting and outlets for the construction work.
02Main feeders & cable racks
A path for power inside the ceiling
We hang cable racks from suspension bolts and run the main feeders to the distribution boards.
03Wiring & boxes
Split the circuits, run them to the boxes
From the racks, we split off the circuits for lights, switches and outlets and run the wires to each box.
04Wiring the distribution board
A board anyone can read at a glance
We connect each circuit to its breaker and label the board so it is clear where every circuit goes.
05Installing fixtures
Ceilings go up, fixtures go in
We install and wire light fixtures, switches, outlets and exit sign lights.
06Measurement
Measure, then confirm
We measure the insulation resistance of each circuit with an insulation tester, and check the earth (ground) resistance as well.
07Energizing & lighting test
Power on. The moment the lights come on
After checking the circuits, we energize the system, confirm that the lights turn on, the equipment runs, and the exit sign lights and automatic fire alarm system work, and then hand over the building.
After handover, we also take on inspection & repair and additional circuits. For work that requires design, we work with our group's design company.
Projects
Projects施工実績
New stores and store renovation & maintenance work, new welfare facilities, and factories. To keep clients and buildings anonymous, we describe each project by its use and region.
New large electronics retail store (Tokyo)
Electrical work for a store occupying five floors of a station-front redevelopment building. We handled main feeders & power, power supply for air conditioning, sales floor lighting and lighting tracks, outlets, dimming, low-voltage systems such as TV, LAN, POS and security cameras, the in-store PA system, and distribution boards. After the store opened, we continued to handle electrical repairs and additional circuits.
- Sales floor area
- approx. 6,400 m²
- Floors
- 5 floors
- Wiring
- 2016
Renovation & maintenance work for electronics retail stores in many regions
LED lighting upgrades, lighting changes and additions for sales floor renovations, and replacement of exit sign lights and automatic fire alarm systems. Our renovation & maintenance work for electronics retail stores has covered 12 prefectures, from the Kanto to the Chugoku region.
See details
New welfare facility (Aichi)
Our group company SOWA SERVICE handled air conditioning, ventilation, plumbing and fire suppression; we handled the electrical work.
See details
Machine wiring for factories (Aichi, Gifu, Mie)
Power supply and machine wiring for production equipment. We also handled power work for ventilation fans at a logistics office.
View the listWith SOWA
Electrical by KD,
HVAC by SOWA.
One group on one site.電気はKD、空調はSOWA。グループで一つの現場に。
Air conditioning, ventilation and plumbing are handled by SOWA SERVICE Co., Ltd., a general building services contractor that covers mechanical systems for the group. We handle the electrical work.
Work that falls between trades, such as power work when air conditioners are replaced, is scheduled together within the group.
People / Recruit
Work that, when it is done,
makes you think
"That went well."完成したとき、「良かった」と思える工事を。
Because we are involved from temporary power through to the energizing & lighting test, we get to share the moment the lights come on. Work that you yourself can look at and think "That went well." We are looking for electricians to join us, and for partner contractors to build sites with us.
Lights won't turn on?
Breakers keep tripping?
Get in touch with us first.照明が点かない、ブレーカーが落ちる。まずはご連絡ください。
Tracing electrical leakage, faulty lights or outlets, replacing fixtures. We take requests for inspection & repair of electrical equipment.
Company
Company会社概要
Based in Nagoya, we carry out the electrical work for the SOWA Group.
- Company name
- KD WORK Co., Ltd.
- Established
- February 2015
- Representative
- Takashi Wago, President and CEO
- Capital
- JPY 5 million
- Head office
- 1-3-37 Koyo, Chikusa-ku, Nagoya, Aichi 464-0061, Japan
- License
- Construction Business License (Electrical Work), Aichi Governor License (General, Ippan-4) No. 108817
- Business
- Electrical construction and construction management, communications wiring, sales of light fixtures, wiring devices and electrical materials, and inspection & repair of electrical equipment
SOWA Group
Contact
Choose by inquiry typeご用件から選ぶ
Our staff will review your inquiry and get back to you. For urgent breakdowns, please call us.
Estimate
Drawings & quotes
Electrical work for new builds, renovations and store refits. You can send drawings and site photos.
Request a quoteRepair
Inspection, repair & breakdowns
Lights won't come on? Breaker keeps tripping? Tell us about any problem with your electrical equipment.
Request a repairPartner
Partner contractor registration
We are looking for electricians and electrical contractors to build sites with us.
About partnering with us