High-Performance Dog Door Installation Across Maryland
Maryland's High-Performance Pet Door Installation Team – Serving Baltimore, Annapolis, Frederick, Rockville & Statewide
Our pet door installation professionals travel up to 50 miles beyond posted coverage – just ask!
📞 Call 855-DOG-DOOR or Request Your Free Quote Below
Our Maryland service footprint continues to expand. Check back often or call to confirm your location.
Portal Pros: Maryland's High-Performance Dog Door & Cat Door Installers
From exterior door dog doors and pet doors through walls to in-glass pet door installations, screen door pet doors, and custom builds for every breed – Portal Pros delivers high-performance pet door installation engineered for Maryland's humid summers, cold winters, and Chesapeake Bay weather patterns.

Pet Door Installation Services in Maryland
Portal Pros provides complete pet door installations for dogs and cats of all sizes. We install exclusively MaxSeal™ and Security Boss™ pet doors – the industry's most durable, energy-efficient pet door systems.
🏠 Front Door Pet Doors
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Dog door installation into exterior doors made of wood, steel, fiberglass, and composite. Our door-mounted pet doors include dual-flap insulation, magnetic seals, and locking security panels built for Maryland's climate. |
🧱 Through-Wall Dog Door Installations
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Through-wall pet door installation in brick, stone, vinyl siding, HardiPlank, and rowhouse masonry. Our wall-mounted dog doors include insulated tunnel systems that maintain your home's thermal envelope through Maryland's changing seasons. |
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🪟 Sliding Door Pet Inserts
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No-modification patio door pet inserts with tempered glass and aluminum framing. Perfect for Maryland renters and homeowners who want dog doors for sliding glass doors without permanent alterations. |
🔷 Glass-Panel Dog Doors
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Pet doors precision-installed into glass panels with factory-spec tempered glass replacement. Ideal for French doors, sidelights, and fixed glass panels. The existing glass is replaced with a new tempered unit housing the pet door. |
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✨ French Door Pet Entries
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Pet door installations for French doors that preserve your Maryland home's style and character. We install dog doors into French door glass or directly through the door panel – configured to your preference. |
�� Window-Mount Dog Doors
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Window-sash pet door systems with weatherproof frames and sealed gaskets for single-hung, double-hung, and sliding windows. A great option for Maryland cat owners and small-dog households wanting convenient window pet access. |
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🐾 Screen Door Pet Flaps
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Heavy-duty pet doors for screen doors letting dogs and cats move freely while keeping insects out of your Maryland home. Our industrial-grade screen door dog doors hold up to daily pet traffic and seasonal use. |
⛈️ Storm Door Dog Door Inserts
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Pet doors integrated into storm doors with weather-resistant seals and locking security panels. Our storm door dog doors maintain your storm door's weather barrier while providing pet access year-round in Maryland. |
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🐕 Kennel & Dog Run Doors
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Commercial-grade pet doors for kennels and dog runs with heavy-duty guillotine mechanisms. Built for Maryland breeders, groomers, boarding facilities, and homeowners with outdoor dog enclosures. |
⭐ Custom & XL Dog Door Builds
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Custom-built and oversized pet doors for unique openings and giant breeds like Chesapeake Bay Retrievers, Labrador Retrievers, and German Shepherds. Our Maryland custom pet door specialists engineer solutions for any challenge. |
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Why Maryland Pet Owners Choose Portal Pros

Portal Pros delivers high-performance pet door installation across Maryland – engineered for Maryland's humid summers, cold winters, and Chesapeake Bay weather patterns. Every project is backed by our lifetime warranty and a donation to no-kill animal shelters with each installation.
- ✅ Chesapeake Climate Ready – Seals and hardware rated for Maryland's coastal humidity and salt exposure
- ✅ Winter-Grade Insulation – Dual-flap barriers that block cold winds blowing off the bay and mountains
- ✅ Storm & Rain Defense – Weatherproof construction for Maryland's nor'easters and summer thunderstorms
- ✅ All Pet Sizes – From cat doors to XXL dog doors for Maryland's biggest breeds
- ✅ MaxSeal™ & Security Boss™ – The industry's toughest, most energy-efficient pet door brands
- ✅ Lifetime Warranty – Full protection on every installation
- ✅ No-Kill Shelter Donations – Every install supports Maryland animal rescue organizations
Questions? Call 855-DOG-DOOR. Our team is ready to help with every pet door installation need across Maryland.
Shop Pet Doors for Maryland
Browse our full selection of MaxSeal™ and Security Boss™ pet doors – shipped directly to your Maryland home or available with professional installation.
🛒 Browse All Pet Doors • 📅 Book Professional Installation
Shop by Category:
Pet Doors for Doors •
Pet Doors for Walls •
Pet Doors for Glass •
Pet Doors for Patios •
French Door Pet Doors
Pet Doors for Windows •
Pet Doors for Screens •
Pet Doors for Storm Doors •
Kennel Dog Doors •
Custom Pet Doors
Top 30 Maryland Cities We Serve for Pet Door Installation
Portal Pros provides high-performance dog door installation and cat door installation across the Old Line State. Our installers serve these Maryland cities and surrounding communities:
Baltimore
Columbia
Germantown
Silver Spring
Waldorf
Frederick
Ellicott City
Glen Burnie
Rockville
Bethesda
Dundalk
Towson
Bowie
Gaithersburg
Annapolis
College Park
Salisbury
Laurel
Greenbelt
Cumberland
Hagerstown
Westminster
Owings Mills
Severn
Odenton
Pasadena
Catonsville
Pikesville
Easton
Ocean City
City not listed? Our pet door installers travel up to 50 miles beyond posted service areas. Call 855-DOG-DOOR to check availability.
Maryland Pet Door Installation FAQs
How much does pet door installation cost in Maryland?
Professional pet door installation in Maryland typically ranges from $175–$950+ depending on mount type, wall construction, and pet door size. Door-mount installs are most affordable; through-wall and in-glass projects cost more. Call 855-DOG-DOOR for a free estimate.
Can you install a pet door through a rowhouse brick wall in Maryland?
Yes! Baltimore rowhouse brick and historic masonry are routine for our crews. Our through-wall installations use insulated tunnel systems built for dense urban construction.
What pet door is best for Maryland's variable weather?
The MaxSeal™ pet door with dual-flap insulation handles Maryland's weather swings. It blocks winter cold, summer humidity, and Chesapeake Bay moisture alike.
Do you install cat doors in Maryland?
Yes! We install cat doors and small pet doors in doors, walls, windows, and screens throughout Maryland. Our smallest models accommodate cats and toy breeds under 15 lbs.
Can I get a pet door without permanent modifications?
Yes! Our sliding patio door pet inserts require no cutting or permanent changes. They slide in and remove cleanly – ideal for Maryland renters.
How long does a pet door installation take?
Door-mount projects typically take 1–2 hours. Wall-mount installations take 2–4 hours depending on wall material. In-glass projects may require a return visit for custom tempered glass fabrication.
Ready for High-Performance Pet Door Installation in Maryland?
📞 Call 855-DOG-DOOR Today
Shop All Pet Doors •
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