When temperatures finally start dropping around the Valley, termite activity usually becomes much less noticeable.

The summer swarmers are gone. Monsoon season is behind us. Homeowners are spending more time outside, and termites are probably one of the last things on anyone’s mind.

But cooler weather does not mean subterranean termites disappear.

If you are thinking about termite control in Surprise AZ, November and the winter months can actually be a great time to look around the property, correct moisture problems, review previous treatment records, and check areas that may have been hidden or difficult to inspect during summer.

Arizona’s subterranean termite colonies live underground, where conditions are far more stable than the temperatures we experience above ground.

The colony does not pack up and leave because it is 60 degrees outside.

Worker termites can remain below the surface and continue searching for cellulose while homeowners see little or no obvious activity.

Arizona also has a significant amount of termite pressure. Some locations may have up to 20 subterranean termite colonies per acre.

That means a home can remain surrounded by termite colonies even after a successful professional treatment.

The goal of good termite control is not to eliminate every termite from Arizona.

The goal is to protect the structure and catch problems before they become expensive.

Here are 11 smart winter checks Arizona homeowners can perform to help protect their homes from subterranean termites.

1. Do Not Assume Termites Disappear When the Weather Cools Down

This is probably the most important winter termite myth.

Homeowners often associate termites with spring and summer because that is when swarmers are most noticeable.

Arizona generally experiences two major termite swarming periods:

• March through May
• July through September

Those are the times homeowners are most likely to notice flying reproductive termites or piles of discarded wings.

But swarmers are only one part of a termite colony.

The worker termites responsible for feeding on wood and building mud tubes remain underground.

The colony is protected from many of the temperature swings happening above the surface.

A subterranean termite queen can also remain deep underground, potentially many feet below the surface, and may produce approximately 300 to 500 eggs per day under favorable colony conditions.

So when November arrives and you stop seeing swarmers, that does not mean the colony died.

It simply means termite activity may be much less visible.

That is why winter should not be treated as a season when termite protection no longer matters.

2. Walk the Exterior Foundation While the Weather Is Comfortable

One advantage of November in Arizona is obvious.

It is finally comfortable outside.

That makes this a great time to walk around the entire house and look at areas you may have ignored during 110-degree summer days.

You do not need special equipment.

Look for:

• Mud tubes
• Fresh dirt against the foundation
• Cracks or construction joints
• Moisture
• Plumbing penetrations
• Areas where landscaping covers the foundation
• Decorative rock piled too high
• Wood touching the soil
• Changes made during summer landscaping projects

Pay particular attention to areas that are difficult to see from a distance.

Termites can build surprisingly small mud tubes.

Some are obvious.

Others may be thin and hidden behind:

• Irrigation lines
• Decorative rock
• Utility boxes
• Storage containers
• Patio furniture
• Plants
• Downspouts
• Hose reels

A five-minute walk around the home can sometimes reveal a problem that has been developing unnoticed.

3. Check the Garage Carefully

Garages are one of the first places many Arizona homeowners discover subterranean termite activity.

There are several reasons.

Garages may contain:

• Slab edges
• Construction joints
• Wall transitions
• Plumbing penetrations
• Expansion joints
• Attached concrete
• Areas hidden behind storage

Homeowners also tend to store a lot of items against garage walls.

That can hide mud tubes for months.

Move boxes, shelving, tools, or stored household items away from the wall occasionally and inspect behind them.

Look near the bottom of the drywall and along slab transitions.

Mud tubes may appear:

• Along the foundation
• Behind baseboards
• Around plumbing
• In cracks
• At wall corners
• Near garage door framing

One small mud tube does not automatically mean the entire home is severely damaged.

But it does mean subterranean termites successfully reached the structure.

That deserves an inspection.

Professional termite treatment in Surprise AZ should consider how the garage connects to the rest of the home rather than treating every garage exactly the same way.

4. Look for Moisture Problems Created During the Summer

Arizona is dry, but our homes often have plenty of artificial moisture around them.

Irrigation is one of the biggest examples.

During summer, drip systems may run frequently to keep landscaping alive.

By November, homeowners may reduce watering schedules.

That makes this a good time to look for problems that were harder to notice while irrigation was running constantly.

Check for:

• Broken emitters
• Leaking drip lines
• Wet soil near the foundation
• Pool equipment leaks
• Outdoor faucet leaks
• AC condensate drainage
• Plumbing leaks
• Low spots where water collects
• Poor drainage near patios
• Irrigation spraying directly against the home

Moisture does not create termite colonies.

The termites are already present throughout the environment.

But persistent moisture can create favorable conditions around the structure.

Decorative rock can also hide moisture.

The top layer may appear completely dry while the soil underneath stays damp for long periods.

If you find a wet area near the foundation, fix the source.

That is good home maintenance regardless of whether termites are currently present.

5. Check Holiday Storage and Cardboard in the Garage

November and December usually mean one thing for garages:

Holiday storage comes out.

Boxes of decorations get moved.

Shelving gets reorganized.

Artificial trees come down from storage racks.

That creates a perfect opportunity to look behind areas that may not have been inspected for months.

Cardboard itself contains cellulose.

That does not mean storing a cardboard box in your garage is going to create a termite colony.

But large amounts of cardboard sitting directly against walls or on floors can make termite evidence harder to notice.

Whenever possible:

• Keep storage slightly away from exterior walls
• Avoid leaving cardboard directly on damp floors
• Replace damaged cardboard containers
• Check beneath long-term storage
• Look behind shelving
• Inspect wall corners before putting everything back

Plastic storage bins can make garage organization easier and reduce the amount of exposed cardboard.

The bigger benefit, however, is visibility.

If you can see the wall and slab edge, you are far more likely to notice a mud tube early.

6. Inspect Areas Around Plumbing Penetrations

Plumbing penetrations are important termite inspection areas.

Anywhere plumbing passes through or near the foundation may create a potential route from the soil into the structure.

Pay attention around:

• Bathrooms
• Kitchens
• Laundry rooms
• Water heaters
• Utility rooms
• Garage plumbing
• Exterior hose connections

Sometimes homeowners notice small amounts of dirt appearing around plumbing and assume it is ordinary dust.

It may not be.

Subterranean termites use soil and moisture to build shelter tubes that protect them as they travel.

If you repeatedly clean away dirt from a plumbing area and it comes back, have it inspected.

Termites can use extremely small openings.

The absence of a large visible crack does not mean the area cannot become an entry point.

7. Review Any Landscaping or Construction Work Done This Year

Think back over the last 12 months.

Did you install:

• Pavers?
• Artificial turf?
• New irrigation?
• A patio?
• A sidewalk?
• A hot tub pad?
• A pool?
• Raised planters?
• New trees?
• Decorative rock?
• A room addition?
• An outdoor kitchen?

Any project involving excavation around the foundation can potentially disturb soil that was previously treated for termites.

This is especially important if your home already has a termite treatment and warranty.

Imagine a complete liquid termite treatment is performed around a home.

Two years later, a contractor removes several inches of soil beside the foundation to install pavers.

That soil may have been part of the original treated zone.

The entire termite treatment did not suddenly become useless.

But that particular area has changed.

It may need to be evaluated.

This is why homeowners with existing termite warranties should contact the treating company before major landscaping whenever possible.

Once everything is covered by pavers, concrete, or turf, correcting the area can become more complicated.

8. Make Sure Decorative Rock and Soil Are Not Hiding the Foundation

This is extremely common in Arizona.

Landscaping crews add decorative rock.

More rock gets added a few years later.

Soil gets moved around.

Eventually, the bottom of the stucco disappears.

That can create a concealed area where termites may travel without building an obvious exposed mud tube.

Homeowners should be able to see the lower portion of the structure whenever construction allows.

That visibility makes it easier to identify:

• Mud tubes
• Cracks
• Water problems
• Foundation transitions
• Soil movement
• Stucco damage

The issue is not that decorative rock causes termites.

The issue is concealment.

Termites are already very good at staying hidden.

There is no reason to make their job easier.

If soil or rock has been piled high against the home, consider correcting the grade so the foundation can be inspected properly.

9. Check Attached Patios and Concrete Areas

Concrete does not automatically stop termites.

Subterranean termites generally do not need to eat through solid concrete.

They can travel beneath it and use existing:

• Cracks
• Expansion joints
• Plumbing penetrations
• Construction joints
• Slab transitions

Attached patios deserve special attention because they can cover the soil directly next to the original foundation.

A homeowner may look at a large patio and assume termites could never come through that area.

But termites can travel beneath the slab until they find an opening.

The same applies to:

• Walkways
• Garage slabs
• Porch areas
• Concrete additions
• Pool decks adjoining the structure

A complete Termidor HE treatment may require accessing soil beneath attached concrete where appropriate.

The exact treatment depends on the home’s construction.

Post-tension slabs require different considerations than floating slabs, and interior drilling is generally avoided in post-tension areas because of the steel cables within the slab.

This is why understanding Arizona construction is such an important part of professional termite control.

10. Review Your Existing Termite Warranty

Winter is also a good time to pull out your termite paperwork.

Ask yourself:

When was the home treated?

What product was used?

Was it a whole-house treatment?

Was it only a spot treatment?

How long is the warranty?

Does the warranty require annual fees?

Is it transferable?

Do I need to request an inspection?

What happens if termites return?

You would be surprised how many homeowners cannot answer those questions.

Sometimes a previous owner handled the treatment.

Sometimes the paperwork was forgotten after closing.

Sometimes a company advertised a multi-year warranty, but annual payments were required to keep it active.

Know what you have before you actually need it.

At TermiKnight, our complete post-construction Termidor HE treatments include a 5-year initial warranty with no annual renewal fee during the first five years.

Customers can request one annual termite inspection during the covered period.

If covered termite activity returns and retreatment is necessary, retreatment is included under the warranty.

After the initial five years, the warranty can be renewed annually for continued protection up to 10 years.

The warranty is also transferable.

That gives homeowners a clear plan instead of wondering what happens if termites reappear.

11. Do Not Ignore Old-Looking Termite Evidence

One of the most common questions I receive is:

“Is this tube old or active?”

Sometimes homeowners discover a mud tube while moving furniture, cleaning the garage, or putting up holiday decorations.

It looks dry.

They assume the termites must be long gone.

Maybe they are.

But appearance alone does not always tell the full story.

Signs that can indicate more recent activity include:

• Live termites
• Fresh, moist mud
• Recently rebuilt portions
• New tubes that were not previously present
• Fresh wood damage
• New swarmers
• Recently discarded wings

An old mud tube does not automatically mean a home needs another complete termite treatment.

That is equally important.

If a home was properly treated and remains under warranty, old evidence may simply be leftover from the original infestation.

Professional termite control should not mean trying to turn every old tube into another sale.

The evidence should be evaluated in context.

Why Termites Are Harder to Notice During Winter

Swarmers get attention.

They are visible.

They fly around lights and windows.

They leave piles of wings.

Worker termites are different.

They spend most of their time hidden:

• Underground
• Inside mud tubes
• Beneath slabs
• Behind walls
• Inside structural wood

That is why winter termite activity can be easy to overlook.

The absence of flying termites only tells you that you are not seeing a swarm.

It does not prove there is no colony nearby.

This is one reason I recommend focusing on structural evidence rather than waiting for swarmers.

Mud tubes and new damage can provide much more useful information about what is happening at the property.

Why Arizona Homes Have So Much Termite Pressure

Subterranean termites are extremely well adapted to Arizona.

Even though the surface environment is hot and dry for much of the year, termites spend most of their lives underground where conditions are far more stable.

Their colonies can extend deep beneath the surface.

Queens may live many feet underground and produce hundreds of eggs per day.

Workers continuously forage outward looking for cellulose.

A house provides exactly that.

Wood framing.

Baseboards.

Cabinetry.

Roof materials.

Paper products.

Cardboard.

Other cellulose-based materials.

That does not mean termites will automatically destroy every Arizona home.

It means homeowners should expect termite pressure to exist and protect the structure accordingly.

Why I Prefer Termidor HE for Post-Construction Termite Control

For post-construction termite treatments, I use Termidor HE.

Termidor HE is a non-repellent liquid termiticide.

Instead of simply repelling workers away from treated areas, termites can move through properly treated soil without readily detecting the treatment.

Exposed workers can then interact with other termites through normal social behavior.

For me, that fits how subterranean termite colonies operate.

Workers must leave the colony and travel through the soil to reach the structure.

My goal is to create a continuous treated zone around the home wherever construction allows.

Depending on the property, treatment may involve:

• Trenching
• Rodding
• Treating expansion joints
• Treating plumbing penetrations
• Drilling attached concrete where appropriate
• Garage treatment
• Patio treatment
• Foam applications in accessible wall voids when necessary

The exact treatment depends on how the home is built.

Why I Prefer a Continuous Treatment Over Bait Stations

Bait stations take a different approach.

Individual stations are placed around the property and rely on foraging termites eventually discovering and feeding on the bait.

There are untreated spaces between those stations.

Personally, I prefer directly protecting the structure.

Arizona already has heavy termite pressure.

With some locations potentially containing numerous colonies per acre, I do not want the protection strategy to depend entirely on termites finding individual stations before they find the house.

I have personally inspected properties where bait stations were present while termites still reached the structure.

That does not mean bait systems can never work.

They can.

I simply prefer a continuous Termidor HE treatment around the home wherever construction allows.

Moisture can also create challenges for bait systems.

Irrigation, drainage problems, and wet soil can contribute to mold around or inside stations.

Heavily moldy bait material may become less attractive to termites.

Bait programs also generally depend on recurring monitoring.

For my post-construction customers, I prefer directly protecting the structure and backing the treatment with a multi-year warranty.

Does Winter Mean You Should Automatically Treat Your Home?

No.

This is important.

You do not need to treat a home just because winter has arrived.

Termite treatment should be based on:

• Active termite evidence
• Previous treatment history
• Construction
• Warranty status
• Risk factors
• Inspection findings

If a home has no termite evidence and already has valid protection, there may be nothing to do.

If an old mud tube is discovered but the property is still under warranty with another company, I will usually recommend contacting that company first.

If a home does need treatment, then we can discuss the appropriate approach.

The purpose of a termite inspection should be to determine what is actually happening, not to automatically produce a treatment proposal.

Should You Knock Down a Mud Tube?

If you find a mud tube and plan to have it inspected soon, I generally prefer that homeowners leave it alone.

The condition of the tube can provide useful information.

A technician may check whether:

• Termites are present
• The tube contains fresh moisture
• The tube appears recently constructed
• New material is being added
• The location suggests a particular entry route

If the tube has already been knocked down, that does not ruin the inspection.

But leaving evidence intact can sometimes make diagnosis easier.

Take a photo if you notice something suspicious.

That can be helpful even if the tube gets damaged later.

Are Termites Less Active in January and February?

Surface activity can certainly become less noticeable during cooler periods.

But that does not mean a property is termite-free.

Subterranean colonies remain protected underground.

The practical takeaway is simple:

Do not wait for warm weather or swarmers before investigating suspicious evidence.

If you discover a mud tube in December, January, or February, it deserves the same attention as a tube found in July.

Should You Schedule an Inspection Before Spring?

If you have a reason to suspect termites, winter can be an excellent time to inspect.

Examples include:

• Old treatment with no current warranty information
• Mud tubes discovered during holiday cleaning
• New moisture problems
• Landscaping completed during the year
• Pavers installed near the foundation
• Irrigation trenching
• Previous swarmers
• Previous termite damage
• Buying or selling a home

There is no benefit to intentionally waiting until spring if evidence is already present.

By the time swarmers appear, a colony may have been interacting with the property for quite some time.

Keep Termite Records With Your Other Home Documents

Homeowners often keep:

• Roof warranties
• HVAC records
• Appliance receipts
• Builder information
• Insurance paperwork

Termite documentation deserves the same treatment.

Keep:

• Treatment proposals
• Treatment dates
• Product information
• Warranty documents
• TARF information
• Inspection reports
• Retreatment history
• Transfer paperwork

Arizona maintains records for qualifying termite actions through the Termite Action Report Form, commonly called a TARF.

At TermiKnight, qualifying termite treatments are properly recorded with the Arizona Department of Agriculture.

That documentation can become useful during:

• Real estate transactions
• Refinancing
• Warranty transfers
• Future termite inspections

Years later, being able to show exactly what was done is much better than guessing.

Winter Is a Great Time to Get Ahead of Spring

One of the best things about checking your property in November is timing.

Arizona’s next major swarming period is still months away.

That gives homeowners time to:

• Correct drainage
• Repair irrigation
• Move storage
• Adjust landscaping
• Find old treatment records
• Review warranties
• Inspect foundations
• Address active termite problems

You do not have to wait until hundreds of winged termites appear around a window to start thinking about termite control.

Good prevention is usually much less stressful than reacting to a swarm.

Professional Termite Control Should Be Straightforward

Termites are complicated enough.

The service should not be.

A homeowner should be able to understand:

What was found.

Where termites may be entering.

What product will be used.

What areas will be treated.

What the warranty covers.

Whether annual fees apply.

What happens if termites return.

At TermiKnight, I perform the inspections and treatments myself.

I use Termidor HE for post-construction termite treatments because I prefer directly protecting the structure rather than relying entirely on individual bait stations.

My goal is not to scare homeowners into a treatment.

It is to identify what is happening and provide a clear solution when treatment is actually necessary.

Professional termite control in Surprise AZ should give homeowners useful information even when the answer is:

“You do not need another treatment right now.”

Schedule Your Free Termite Inspection

If you are doing some fall cleaning, moving garage storage, checking landscaping, or simply reviewing your home’s termite protection, take a few minutes to look around the foundation.

If you find something suspicious, TermiKnight offers free termite inspections throughout Surprise and the West Valley.

I will inspect the property, explain what I find, and let you know whether anything actually needs to be done.

If the evidence appears old, I will tell you.

If another company’s warranty is still active, I will tell you to contact them.

If treatment is necessary, I will explain exactly what areas should be protected and why.

✔️ Free termite inspections

✔️ $400 OFF complete termite treatment

✔️ Termidor HE post-construction treatments

✔️ 5-year initial warranty, renewable up to 10 years

✔️ No annual renewal fee during the first 5 years

✔️ One annual inspection available upon request

✔️ Retreatment included when necessary under the warranty

✔️ Transferable warranty

✔️ TARF recorded with the Arizona Department of Agriculture when required

📞 Call or text: (623) 241-2598

🏰🛡️ Protect your Castle with TermiKnight!