Advantages
Kills over 130 bug types on contact, stays active for up to 12 months, and won’t stain or leave behind any smell — just a clean, protected home.
Kills on contact
The moment a bug crosses the barrier, it’s done. No slow process, no waiting around to see if it worked. Ortho Home Defense Max hits fast and hard, taking out insects the second they touch the treated surface. Whether it’s ants sneaking through a crack in the wall or roaches making their way under the door — they don’t get a second chance.
Lasts up to 12 months
One good application and you’re covered for the entire year. No need to respray every few weeks or wonder if the protection has worn off. The formula bonds to surfaces and stays active through foot traffic, cleaning, and changing seasons — giving you a full year of reliable protection without the constant upkeep.
Safe for inside and outside use
A lot of bug sprays come with a trade-off — strong enough to kill, but too harsh to use around your family. Ortho Home Defense Max skips that compromise. It dries clean with no lingering smell and won’t leave stains on floors, baseboards, or walls. Use it along the perimeter outside, around windows and doors, or inside along baseboards — wherever bugs try to find a way in.
Choose your defense
Find the right product for your home — whether you need indoor protection, outdoor coverage, or a complete barrier that handles both.
BugClear Insect Killer
A concentrated outdoor formula that gets deep into your lawn and landscaping, killing mosquitoes, ants, spiders, fleas, ticks, and over 100 other insects — so your yard stays yours, not theirs.
Fire Ant Killer Broadcast Granules
Scatter the granules, and fire ant mounds are gone in 15 minutes — with a protective barrier that keeps them from coming back for up to 6 months across your entire yard.
Home Defense Insect Killer
A ready-to-use formula that creates a continuous bug-killing barrier along your home’s perimeter and inside — targeting ants, cockroaches, spiders, and more with a comfortable wand that makes application fast and easy.
Home Defense MAX Indoor Insect Barrier
A battery-powered sprayer that takes the effort out of bug control — ready to use straight out of the box, it kills ants, roaches, spiders, fleas, and ticks with even, consistent coverage across every corner of your home.
Home Defense Max Kitchen Insect Killer
Kills ants, roaches, and spiders on contact right where food is prepared — and sanitizes the surface at the same time, so your kitchen stays clean and bug-free in a single treatment.
Home Defense Insect Killer for Cracks & Crevices
A expanding foam formula that pushes deep into cracks, crevices, and hard-to-reach hiding spots — killing ants, cockroaches, fleas, centipedes, crickets, and more right where they nest, with long-lasting protection that seals the problem at the source.
GroundClear Weed and Grass Killer
A powerful weed and grass killer that gets to the root and wipes out dandelions, chickweed, crabgrass, moss, and more — with a comfort wand that makes treating patios, walkways, and landscaped areas quick and straightforward, all with an OMRI-listed formula you can feel good about using.
GroundClear Year Long Vegetation Killer
One application clears out existing weeds and grasses and keeps new ones from growing back for up to a full year — making it the go-to solution for driveways, gravel paths, and any area where you want nothing growing at all.
Quiet <30dB Aquarium Air Pump
A super-concentrated formula that cuts through tough weeds like crabgrass, dandelion, and clover at the root — one bottle goes a long way, making it a cost-effective choice for tackling large areas fast.
Features
Everything you need to know about what’s inside the formula — from how fast it works to how long it lasts and where you can safely use it.
Fast-Acting Formula
Starts killing bugs the moment they come into contact with the treated surface — no delays, no waiting to see results.
Non-Staining & Odor-Free
Dries completely clear with no smell left behind, making it safe to apply along baseboards, window frames, and other indoor surfaces without any mess or residue.
Indoor & Outdoor Ready
Formulated to work on both sides of your home — apply it along the outdoor perimeter to block bugs before they get in, or use it inside along entry points, baseboards, and corners where insects tend to hide.
Review
Real results from real homeowners — see what people are saying after using Ortho Home Defense MAX in their own homes.
About brand
Ortho Home Defense MAX has been protecting American homes for years, built around one straightforward idea — bugs should stay outside where they belong. The product line covers everything from indoor barriers to outdoor perimeter treatments, giving homeowners a complete system rather than a single fix. Whether you’re dealing with a full-blown infestation or just want to stay ahead of the problem, there’s a product in the lineup made for exactly that situation.
What sets Ortho Home Defense MAX apart from the average bug spray is the staying power. Most products wear off after a few weeks and leave you spraying again and again. Ortho Home Defense MAX bonds to surfaces and holds up for up to 12 months, meaning one good application handles the entire season without constant reapplication or guesswork.
The formula works across more than 130 insect types — ants, roaches, spiders, fleas, ticks, and plenty more. It gets to work on contact and keeps working long after the spray dries, creating a barrier that bugs hit and don’t come back from. And because it dries odor-free and non-staining, you can apply it in kitchens, along baseboards, around windows, and anywhere else bugs tend to find a way through.
Ortho Home Defense MAX isn’t just a product — it’s a straightforward approach to keeping your home the way it should be. Clean, comfortable, and completely bug-free. No complicated routines, no professional appointments, no second-guessing. Just a proven formula that does exactly what it says, applied in minutes and working around the clock.
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What peoples say about us
Over 50,000 homeowners have tried Ortho Home Defense MAX and shared their results — here’s what they had to say after putting it to the test.
Sarah H., 34 — Phoenix, AZ
Customer
I’ve tried probably five different bug sprays over the years and nothing stuck around long enough to actually matter. Sprayed Ortho Home Defense MAX along the baseboards and around the doors back in March — it’s now August and I haven’t seen a single ant in the house. That’s never happened before.
James T., 52 — Houston, TX
Customer
Living in Texas means bugs are just part of life, or so I thought. A neighbor recommended this and I figured I’d give it a shot. Roaches were gone within two days. Did the perimeter outside and haven’t had to touch it since. Wish I’d found this thing ten years ago.
Melissa D., 41 — Dallas, TX
Customer
I have two kids and two dogs so I’m always careful about what I bring into the house. Ortho Home Defense MAX dries completely with no smell and no residue — I felt comfortable using it around the house without worrying. And it actually works, which is the whole point. No bugs, no stress.
FAQ
Yes — once the spray dries completely, it is safe for children and pets to be in the treated area. Drying usually takes about 30 minutes depending on ventilation. During application, keep kids and pets out of the room and let the area air out before letting them back in.
Up to 12 months on non-porous surfaces like baseboards, tile, and concrete. On porous surfaces or in areas with heavy foot traffic, results may vary — but most homeowners report not needing to reapply for several months at minimum.
No. Just keep the treated area clear during application and give it time to dry. Once dry, you can go about your normal routine without any issue.
No. The formula dries completely clear and leaves no visible residue on baseboards, hardwood floors, tile, or painted walls. It is designed specifically for indoor use without the mess.
Ortho Home Defense MAX works on more than 130 insect types, including ants, cockroaches, spiders, fleas, ticks, centipedes, and more. If you have a specific pest problem, check the product label for the full list of covered insects.
Most standard bug sprays break down quickly and only kill bugs on direct contact at the time of spraying. Ortho Home Defense MAX bonds to surfaces and stays active long after it dries, creating a barrier that keeps working for months — not days.
For most common household bug problems, no. Ortho Home Defense MAX is formulated to deliver results comparable to professional treatments, applied by you in minutes without scheduling appointments or paying service fees.
Bugs that come into contact with the treated surface are killed on contact. For a full infestation, most homeowners notice a significant drop in bug activity within a few days of application.