How Long Does It Take for Drywood Termites to Swarm After Invading Your Home?

How Long Does It Take for Drywood Termites to Swarm After Invading Your Home?

A newly established drywood termite colony generally takes several years to mature and produce winged termites, known as swarmers or alates. However, seeing a swarm does not tell you exactly when termites first entered your home.

The swarmers may be coming from a mature colony that has been hidden inside the structure for years. They could also be entering from a nearby tree, fence, woodpile, or neighboring structure.

How a Drywood Termite Colony Begins

A drywood termite colony begins when a male and female swarmer find suitable wood, shed their wings, and pair up. Unlike subterranean termites, drywood termites live entirely inside wood and do not need contact with the soil.

The pair establishes a small colony and begins producing offspring. Colony growth is slow during the first several years. Because the termites remain hidden inside the wood, homeowners usually do not notice the infestation during this stage.

When Does the Colony Begin Swarming?

Drywood termite colonies take years to mature. Once a colony becomes established, it may begin producing winged reproductive termites that leave to form new colonies.

There is no exact timetable. Colony growth depends on factors such as:

• The species of termite
• Temperature and environmental conditions
• The size and condition of the infested wood
• The survival and growth of the colony

In Southern California, western drywood termite swarms are most commonly seen during warm daytime hours in late summer and fall.

Does a Swarm Mean the Home Is Infested?

Not necessarily. Termite swarmers found outdoors may have come from a nearby source. However, swarmers emerging indoors, piles of discarded wings near windows, or repeated swarming inside the home are strong reasons to schedule a professional termite inspection.

A swarm also does not reveal the size or location of an infestation. A home may contain more than one drywood termite colony, and colonies can remain concealed behind walls, ceilings, siding, or other finished surfaces.

Other Signs of Drywood Termites

Swarmers are not the only indication of an infestation. Other signs include:

• Small, hard termite pellets
• Tiny holes where pellets are pushed out of the wood
• Discarded wings near windows or doors
• Hollow or damaged wood
• Blistering or uneven wood surfaces

Termite pellets alone cannot confirm whether an infestation is currently active. Pellets can remain inside or around a structure long after they were produced.

What Should You Do If You See Swarmers?

Save a few insects or discarded wings in a sealed container if possible. This can help a termite professional determine whether they are termites and identify the type.

Do not rely on spraying the visible swarmers. The main colony remains protected inside the wood, and killing the termites you can see will not eliminate the infestation.

A professional inspection is the best way to determine whether termites are emerging from the structure and whether treatment is necessary.

Schedule a Drywood Termite Inspection

Tiger Termite Control has served Chino Hills and surrounding Southern California communities since 1997. We inspect homes for drywood and subterranean termites and explain the appropriate treatment options based on what we find.

If you have discovered termite swarmers, discarded wings, pellets, or damaged wood, call Tiger Termite Control at (909) 597-6953 to schedule an inspection.

Updated September 2026.