Starting Free Termite Inspections in Fukuoka, Kumamoto, and Saga | Beware of Yamato Termite Black Swarmers in April and May. Preventive Campaign in May!
Progrant Co., Ltd. announces free underfloor inspections in Fukuoka, Kumamoto, and Saga, timed with the April-May emergence of Yamato termite swarmers, alongside a limited preventative campaign.
📋 Article Processing Timeline
- 📰 Published: April 14, 2026 at 19:10
- 🔍 Collected: April 14, 2026 at 10:31
- 🤖 AI Analyzed: April 19, 2026 at 18:43 (128h 11m after Collected)
Progrant Co., Ltd. (Headquarters: Kumamoto City, Kumamoto Prefecture; Representative Director: Yasumitsu Fujii) will commence "Underfloor SOS / Free Inspection" in Fukuoka, Kumamoto, and Saga prefectures to coincide with the period from mid-April to May when Yamato termite swarmers are likely to appear.
Mid-April to May is the season when Yamato termite swarmers commonly emerge in Fukuoka, Kumamoto, and Saga.
If you see black swarmers inside your house, there is a high possibility that termites are active under the floor or in the wooden parts of your home.
Progrant Co., Ltd. is conducting free inspections in Fukuoka, Kumamoto, and Saga that check not only for the presence of termite damage but also the moisture levels under the floor and the condition of the wood.
[Underlying Regional Issues: Why Are Inspections Urgent in the Kyushu Area?]
The Kyushu region, including Fukuoka, Kumamoto, and Saga, has a warm and humid climate, making it an area where termite activity is extremely high nationwide. Furthermore, in recent years, localized heavy rains and typhoons have caused frequent flooding and moisture retention under floors. Combined with the aging of wooden houses and the vacant house problem, the "invisible decline in durability and earthquake resistance" caused by termite damage has become a major regional issue that increases the risk of building collapse during earthquakes and disasters.
The Japan Termite Control Association states that Yamato termite swarmers mainly fly during the daytime in April and May, and swarmer sightings have already been reported in April in various regions including Fukuoka and Saga.
If you see black swarmers inside your house, termites may be active under the floor or in the wood. Even if you exterminate the swarmers on the spot, the situation inside the building remains unknown unless the source is confirmed.
Therefore, our company offers free inspections to check not only for termites but also for underfloor moisture, the condition of the wood, and any plumbing abnormalities, and we will guide you on appropriate prevention and countermeasures if necessary.
Additionally, from Friday, April 14, 2026, to Sunday, May 31, 2026, we will hold a "Termite Prevention and Disinfection Limited Time Campaign" targeting Fukuoka, Kumamoto, and Saga prefectures [limited to the first 50 homes in each prefecture].
Summary of Key Points
- Mid-April to May is the season when Yamato termite swarmers emerge.
- If black swarmers appear in the house, termites may be active under the floor or in the wood.
- Exterminating only the swarmers does not reveal the internal damage to the building unless the source is identified.
- Progrant conducts free inspections in Fukuoka, Kumamoto, and Saga to check for termite damage and underfloor environments.
- In May, a termite prevention disinfection campaign will be held, limited to the first 50 houses per prefecture.
- Early underfloor checks in April and May are crucial in areas with many wooden houses, such as Kumamoto City, Kurume City, and Saga City.
■ What You Should Check First When "Black Swarmers" Appear in Your House
▲ Left: Yamato termite swarmer (Be careful on the day after it rains!)
"I recently saw black bugs with wings inside the house."
"On a warm day after the rain, wings were scattered near the window or entrance."
"Black swarmers appeared, but I don't know if they are termites or black ants."
These types of inquiries surge every year between mid-April and May.
The Japan Termite Control Association also advises that Yamato termite swarmers mainly swarm during the daytime from April to May, and numerous sightings have been reported across Kyushu, including Fukuoka and Saga prefectures.
Swarmers might be a sign of "invisible damage."
Swarmers don't always fly in from the outside; in many cases, a portion of the termites active under the floor or in the wooden parts of the building have flown out. Even if you exterminate the visible swarmers, the internal damage to the building will progress if the source is not confirmed. "If you see swarmers, check the condition under the floor and inside the building first" is the first step to protecting your home.
[Watch Out for These Symptoms/Places (Self-Check)]
Besides the emergence of swarmers, suspect advancing termite damage if you notice the following signs:
Sinking or squishy floors: Especially floors in wet areas like the bathroom, toilet, and kitchen.
Mysterious powder falling: Wood dust or feces-like matter dropping at the base of pillars or the entrance sill.
Deterioration of fittings: Doors or sliding doors have recently become hard to close, or tatami mats easily grow mold.
Termite tubes (Gido): Mud tunnel-like streaks on the concrete foundation.
■ Progrant's Free Inspection Doesn't End With Just Termites
Progrant provides inspections and estimates completely free of charge.
Additionally, during the investigation, we take photos of the underfloor and ceiling space and maintain a system to carefully explain the situation.
Keywords:
Mid-April to May is the season when Yamato termite swarmers commonly emerge in Fukuoka, Kumamoto, and Saga.
If you see black swarmers inside your house, there is a high possibility that termites are active under the floor or in the wooden parts of your home.
Progrant Co., Ltd. is conducting free inspections in Fukuoka, Kumamoto, and Saga that check not only for the presence of termite damage but also the moisture levels under the floor and the condition of the wood.
[Underlying Regional Issues: Why Are Inspections Urgent in the Kyushu Area?]
The Kyushu region, including Fukuoka, Kumamoto, and Saga, has a warm and humid climate, making it an area where termite activity is extremely high nationwide. Furthermore, in recent years, localized heavy rains and typhoons have caused frequent flooding and moisture retention under floors. Combined with the aging of wooden houses and the vacant house problem, the "invisible decline in durability and earthquake resistance" caused by termite damage has become a major regional issue that increases the risk of building collapse during earthquakes and disasters.
The Japan Termite Control Association states that Yamato termite swarmers mainly fly during the daytime in April and May, and swarmer sightings have already been reported in April in various regions including Fukuoka and Saga.
If you see black swarmers inside your house, termites may be active under the floor or in the wood. Even if you exterminate the swarmers on the spot, the situation inside the building remains unknown unless the source is confirmed.
Therefore, our company offers free inspections to check not only for termites but also for underfloor moisture, the condition of the wood, and any plumbing abnormalities, and we will guide you on appropriate prevention and countermeasures if necessary.
Additionally, from Friday, April 14, 2026, to Sunday, May 31, 2026, we will hold a "Termite Prevention and Disinfection Limited Time Campaign" targeting Fukuoka, Kumamoto, and Saga prefectures [limited to the first 50 homes in each prefecture].
Summary of Key Points
- Mid-April to May is the season when Yamato termite swarmers emerge.
- If black swarmers appear in the house, termites may be active under the floor or in the wood.
- Exterminating only the swarmers does not reveal the internal damage to the building unless the source is identified.
- Progrant conducts free inspections in Fukuoka, Kumamoto, and Saga to check for termite damage and underfloor environments.
- In May, a termite prevention disinfection campaign will be held, limited to the first 50 houses per prefecture.
- Early underfloor checks in April and May are crucial in areas with many wooden houses, such as Kumamoto City, Kurume City, and Saga City.
■ What You Should Check First When "Black Swarmers" Appear in Your House
▲ Left: Yamato termite swarmer (Be careful on the day after it rains!)
"I recently saw black bugs with wings inside the house."
"On a warm day after the rain, wings were scattered near the window or entrance."
"Black swarmers appeared, but I don't know if they are termites or black ants."
These types of inquiries surge every year between mid-April and May.
The Japan Termite Control Association also advises that Yamato termite swarmers mainly swarm during the daytime from April to May, and numerous sightings have been reported across Kyushu, including Fukuoka and Saga prefectures.
Swarmers might be a sign of "invisible damage."
Swarmers don't always fly in from the outside; in many cases, a portion of the termites active under the floor or in the wooden parts of the building have flown out. Even if you exterminate the visible swarmers, the internal damage to the building will progress if the source is not confirmed. "If you see swarmers, check the condition under the floor and inside the building first" is the first step to protecting your home.
[Watch Out for These Symptoms/Places (Self-Check)]
Besides the emergence of swarmers, suspect advancing termite damage if you notice the following signs:
Sinking or squishy floors: Especially floors in wet areas like the bathroom, toilet, and kitchen.
Mysterious powder falling: Wood dust or feces-like matter dropping at the base of pillars or the entrance sill.
Deterioration of fittings: Doors or sliding doors have recently become hard to close, or tatami mats easily grow mold.
Termite tubes (Gido): Mud tunnel-like streaks on the concrete foundation.
■ Progrant's Free Inspection Doesn't End With Just Termites
Progrant provides inspections and estimates completely free of charge.
Additionally, during the investigation, we take photos of the underfloor and ceiling space and maintain a system to carefully explain the situation.
Keywords: