Custom-Built Catios & Cat Walls for Your Home
Give your cats safe outdoor freedom with custom catios, cat walls, and window boxes designed and built for your home. Licensed catio builder serving Arizona & Maryland.
What We Build
Custom Cat Spaces for Every Home
Every project is 100% custom, designed and built around your cats, your space, and your style. No templated kits. No one-size-fits-all.

Outdoor Catios
Custom outdoor cat enclosures — freestanding or attached — that give your cats safe outdoor access. Multi-level platforms, ramps, bridges, cozy hideaways — all designed and built for your local climate and wildlife threats.
Starting from $4,000+
Indoor Cat Walls
Transform your walls into vertical playgrounds. Custom shelving, climbing routes, tunnels, perches, and scratch stations — designed to match your home's aesthetic while enriching your cats' daily lives.
Starting from $1,500+
Window Box Catios
Compact screened enclosures that attach to your window, giving cats a safe outdoor perch without major modifications. Perfect for apartments, townhomes, condos, and rentals.
Starting from $1,800+Why Monument Catios
Designed Around Your Cats. Managed For You.
We're not a big-box kit company. We're a licensed design-build company that treats every project like it's our own cats' home.
Cat Lovers First
We started Monument Catios because we wanted safe outdoor spaces for our own cats. That same passion drives every project. We understand cats — their behaviors, their preferences, their needs for climbing, hiding, and watching.
100% Custom 3D Designs
No templates. No kits. Every catio and cat wall starts with a custom 3D rendering designed around your specific home, yard, and cats. You see exactly what you're getting before any work begins.
Licensed & Insured Builder
Monument Catios holds an Arizona ROC License (#364641) and a Maryland MHIC License (#167535-02). We handle design and construction under one roof — proper permits, code compliance, and professional quality from a single licensed team.
Climate-Engineered
Arizona heat, Maryland humidity — we design for your specific climate. UV-resistant materials, proper ventilation, shade structures, and weather protection ensure your catio performs year-round in any conditions.
One Team, Start to Finish
From initial cat wall or catio concept to final installation, we're your single point of contact. We handle permit documentation, HOA submissions, scheduling, and quality reviews — one company, one contract, no juggling multiple vendors.
Wildlife Protection
Every catio is designed with local wildlife in mind. In Arizona, that means heavy-gauge screening designed to deter coyotes and secure locking. In Maryland, protection from raccoons, foxes, and hawks. Your cats stay safe.
How It Works
From First Call to Happy Cats in 4 Simple Steps
We make the process seamless. You focus on your cats, we handle everything else.
Free Consultation
A quick call to learn about your cats, your home, and your vision. We discuss options, answer questions, and provide a rough budget range — no pressure, no obligation.
Custom 3D Design
Our design team creates detailed 3D renderings tailored to your exact space. You see every angle, every feature, and every material choice before approving the final design.
Permits & Planning
We handle building permits, HOA submissions, and project scheduling. You sign one agreement with Monument Catios covering design, materials, and construction — simple and straightforward.
Professional Catio Installation
Our licensed crew brings your design to life in 1-5 days depending on complexity. We do a final walkthrough with you, make sure everything is perfect, and introduce your cats to their new space.
Arizona Service Area
Custom Catios Across Arizona
Arizona's year-round sunshine makes it ideal for outdoor catios — but extreme heat, coyotes, bobcats, and desert wildlife demand expert design. Our Arizona catios feature UV-resistant shade structures, thermally efficient materials, heavy-gauge predator-proof screening, and monsoon-ready construction.
We serve 26+ cities across the Phoenix metro, Tucson, Northern Arizona, and beyond. Arizona ROC Licensed (#364641) — every project designed and built by our team.
Maryland Service Area
Custom Catios Across Maryland
Maryland's four-season climate and lush landscapes create wonderful outdoor environments for cats — but raccoons, foxes, hawks, and busy suburban roads make safety essential. Our Maryland catios are designed for humidity, seasonal weather changes, and local wildlife protection.
From the DC suburbs to Baltimore and the Eastern Shore, we design and build custom catios and cat walls for Maryland homeowners who want their cats to enjoy the outdoors safely. MHIC Licensed (#167535-02).
The Monument Catios Difference
Why Cat Parents Choose Monument Catios Over DIY Kits
There's a world of difference between a generic kit from Amazon and a custom-designed catio by Monument Catios.
Designed, Not Guessed
Every project begins with professional 3D catio design tailored to your exact space. DIY kits are generic boxes. Our custom catios are custom extensions of your home that complement your style and maximize your cats' enjoyment.
Professionally Built
Our licensed, insured team handles every installation. That means proper permitting, code compliance, structural integrity, and workmanship you can trust — not a weekend DIY project that may not hold up. AZ ROC #364641 | MD MHIC #167535-02.
Climate-Rated Materials
We specify materials rated for your specific climate — UV-resistant for Arizona's desert sun, moisture-resistant for Maryland's humidity. Generic kits use one-size-fits-all materials that degrade in extreme conditions.
Single Point of Contact
No juggling architects, contractors, and permit offices. We design, permit, and build your catio — from concept to completion — under one roof. You deal with one team, period.
Local Wildlife Expertise
Coyotes in Arizona. Raccoons in Maryland. We design every enclosure for the specific predators in your area — not a generic "outdoor safe" claim. Your cats' safety is non-negotiable.
Permit & HOA Handled
As a licensed contractor, we handle building permit applications, HOA submission packages, and local regulation compliance. Our team prepares all documentation and manages the entire approval process for you.
What Cat Parents Say
Loved by Cats & Their Humans
"Monument Catios designed the perfect outdoor space for our two Bengals. They understood Arizona's heat challenges and created shade structures that keep the catio cool even in July. Our cats spend hours out there every day."
Scottsdale, AZ
"From the initial consultation to final installation, the whole process was seamless. They handled permits, coordinated with our HOA, and delivered exactly what the 3D design showed. Highly recommend to any cat parent."
Bethesda, MD
"We were worried about coyotes in our neighborhood. Monument Catios designed a secure enclosure with reinforced screening and locking doors. Now our three cats enjoy the outdoors safely. Worth every penny."
Gaithersburg, MD
Names changed for privacy. Testimonials represent actual client experiences.
Common Questions
Frequently Asked Questions
A catio is a custom-designed outdoor enclosure that gives your cats safe access to fresh air, sunshine, and outdoor stimulation — while keeping them protected from traffic, predators, and other hazards. They range from compact window boxes to large multi-level structures with platforms, ramps, bridges, and cozy hideaways. Think of it as a screened-in patio designed specifically for your cats.
Projects vary based on size, materials, features, and site conditions. Window box catios are the most affordable option, while large multi-level outdoor catios represent a bigger investment. Indoor cat walls fall somewhere in between. Every project receives a detailed, transparent quote after a free consultation — so there are never surprises. We're happy to work within a range of budgets.
Yes. Monument Catios is a fully licensed and insured design-build firm. We hold an Arizona ROC License (#364641) and a Maryland MHIC License (#167535-02). We handle everything — custom 3D design, permitting, materials, and professional construction — under one roof. One company, one contract, one team responsible for your entire project from start to finish.
We currently serve Arizona and Maryland. In Arizona, we cover 26+ cities including Phoenix, Scottsdale, Tempe, Mesa, Chandler, Gilbert, Tucson, Flagstaff, and many more across the Phoenix metro and beyond. In Maryland, we serve the greater Baltimore area, Annapolis, Bethesda, Columbia, Silver Spring, Rockville, Frederick, and surrounding communities. Contact us to confirm service availability in your specific area.
Typical timeline is 4-8 weeks from initial consultation to your cats enjoying their new space. This includes design development (1-2 weeks), permitting and HOA approval (1-3 weeks), and professional installation by our licensed crew (1-5 days depending on complexity). We provide a detailed timeline during your free consultation so you know exactly what to expect.
Permit requirements vary by city and county. Many municipalities require permits for permanent outdoor structures attached to homes. The good news: as a licensed contractor, we handle the entire permit process for you. Our team prepares all application documentation and works directly with the local building department throughout the process. You don't have to worry about paperwork or compliance.
Absolutely — that's the whole point. Every Monument Catios project is 100% custom-designed to complement your home's architecture, whether it's a Southwest adobe in Arizona, a colonial in Maryland, a modern build, or anything in between. We create detailed 3D renderings so you can visualize the design before any work begins. Unlimited design revisions ensure you love the final concept.
Yes. We engineer every enclosure for the specific wildlife threats in your area. In Arizona, that means heavy-gauge screening designed to deter coyotes, secure locking mechanisms, and structural designs that help protect against bobcats, javelinas, rattlesnakes, and hawks. In Maryland, we design for raccoons, foxes, hawks, and other local predators. Your cats' safety is our top priority and non-negotiable.
What You Get
Have questions? Call us:
(480) 360-4888