You’ve found a multifamily property that checks all the boxes — strong rents, solid occupancy, good location. But before you sign on the dotted line, there’s one area that can make or break your investment: the exterior.
We’ve seen it more times than we can count. An investor closes on a 150-unit apartment community in Phoenix, and within six months they’re staring down $400,000 in deferred exterior maintenance that wasn’t in the budget. Peeling paint, failing roof coatings, rotted wood on balconies, rusted stair rails — problems that were easy to miss during a walkthrough but impossible to ignore once they start getting resident complaints and code violations.
A thorough exterior assessment before closing isn’t optional. It’s the difference between a smart acquisition and a money pit.
Here’s exactly what you and your inspection team should be evaluating.
Roof Condition: Your Biggest Ticket Item
The roof is almost always the most expensive exterior component on a multifamily property, and in Arizona, it takes an absolute beating. Between 150+ degree surface temperatures in summer, monsoon storms, and UV degradation, roofing systems in the Valley age faster than anywhere else in the country.
During your assessment, you want answers to these questions:
What type of roofing system is in place? Flat roofs with a coating system are common on Arizona apartment complexes. Know whether it’s elastomeric, silicone, or acrylic — each has a different lifespan and maintenance profile.
When was the roof last coated or replaced? If the current owner can’t produce documentation, that’s a red flag. A well-maintained roof should have service records.
Are there signs of ponding water? After a rain, water that sits on a flat roof for more than 48 hours is actively degrading the membrane. Look for staining, algae growth, or visible low spots.
What’s the condition of flashing, penetrations, and edges? These are where leaks start. Deteriorated flashing around HVAC units, vents, and parapet walls is one of the most common — and most costly — issues we find during inspections.
A drone inspection can cover large roof areas quickly and catch problems that aren’t visible from the ground. We use drones on nearly every assessment we do because walking a roof only tells part of the story.
Paint and Coatings: More Than Cosmetics
Exterior paint on an Arizona apartment complex isn’t just about curb appeal — it’s a protective barrier. When paint fails, moisture gets into stucco and wood substrates, and that’s when real damage starts.
Here’s what to look for:
Chalking and fading. Run your hand across a painted surface. If it leaves a powdery residue, the paint’s UV protection is gone. This is extremely common in Phoenix after 4-5 years of sun exposure.
Cracking, peeling, or bubbling. These are signs of adhesion failure, often caused by improper surface prep during the last paint job or moisture trapped behind the coating.
Stucco cracks. Hairline cracks are cosmetic. Cracks wider than 1/16 of an inch can allow moisture intrusion, which leads to much bigger problems — especially during monsoon season.
Inconsistent color or touch-up patches. This usually means the property has been spot-repaired rather than properly maintained. It’s a sign of deferred maintenance and often hides deeper issues.
Get a realistic estimate for what a full exterior repaint will cost. On a typical Arizona apartment community, you’re looking at $1,500 to $3,500 per unit, depending on the size, number of buildings, and surface conditions. Factor that into your acquisition budget.
Wood Components: Where Deferred Maintenance Hides
Balconies, stair stringers, railings, fascia boards, and carport structures — wood components are where deferred maintenance loves to hide on multifamily properties.
In Arizona, the combination of extreme heat, UV exposure, and monsoon moisture creates the perfect environment for wood deterioration. And unlike paint or roof coatings, wood damage is often structural. That means it can trigger life-safety concerns, code violations, and insurance issues.
Check balcony decking and rails closely. Soft spots in decking, loose or wobbly rails, and visible rot at connection points are all signs of failure. Balcony collapses are a real liability risk, and cities across Arizona have gotten more aggressive about enforcement.
Inspect stair systems. Wood stringers that are cracked, warped, or showing signs of rot need to be replaced — not patched. This is a safety issue, period.
Look at carport posts and beams. Carport structures take a beating from the elements and from vehicle contact. Leaning posts, cracked beams, and deteriorated footings are common findings.
The cost to address wood replacement can range from $50,000 to $300,000+ depending on the scope. If the property has significant wood issues, you need to know before you close — not after.
Life Safety and Code Compliance
This is the one that can’t wait. Life-safety issues — things like damaged fire escapes, non-compliant railings, missing handrails, or deteriorated walking surfaces — need to be identified and budgeted for immediately.
Municipalities in Arizona are increasingly conducting proactive inspections of multifamily properties, and the penalties for non-compliance are getting steeper. If the property you’re acquiring has outstanding code violations, you could inherit them along with the deed.
During your exterior assessment, check for:
- Railing height and spacing that meets current building code
- Stair treads and landings in safe, stable condition
- Trip hazards on walkways and in common areas
- Proper drainage away from buildings and walkways
- ADA compliance in parking areas and accessible routes
If any of these items are deficient, get bids for remediation before you finalize your offer. These aren’t optional improvements — they’re legal requirements.
Drainage and Grading
Water management might not be glamorous, but it’s critical in Arizona. When monsoon season hits, poor drainage can cause flooding in units, erosion of landscaping, and accelerated deterioration of foundations and flatwork.
Walk the property after a rain if possible, or look for evidence of past water issues:
Staining on exterior walls near grade level often indicates water is pooling against the building.
Cracked or settled concrete flatwork can redirect water toward buildings instead of away from them.
Erosion channels in landscaping show where water is flowing during storms — and it may be flowing somewhere you don’t want it.
Correcting drainage issues after closing can be surprisingly expensive, especially if it requires regrading, French drains, or concrete replacement.
What a Professional Exterior Assessment Gives You
A general property inspection covers a lot of ground, but it often treats the exterior as a checkbox rather than a deep dive. For a multifamily acquisition, you want a contractor who specializes in exterior systems to walk the property with you.
Here’s what a specialized assessment from a company like American Exterior Systems includes:
Drone roof inspection that captures high-resolution imagery of every roof section, identifying damage, wear patterns, and potential failure points that aren’t visible from the ground.
Building-by-building exterior evaluation covering paint condition, stucco integrity, wood components, metal elements, and waterproofing systems.
Prioritized repair recommendations broken into immediate needs (life-safety, active leaks), near-term items (1-2 year timeline), and long-term capital planning (3-5 years).
Budget-level cost estimates so you can factor exterior capital needs into your acquisition model before you close.
This isn’t about finding reasons to walk away from a deal. It’s about going in with your eyes open and your numbers right.
The Bottom Line
The exterior of a multifamily property is one of the largest capital expenditure categories you’ll face as an owner. Roof replacements, full repaints, wood replacement programs, and structural repairs can easily run into six or seven figures on a mid-size apartment community.
The time to understand those costs is before you close — not after. A thorough exterior due diligence assessment protects your investment, strengthens your negotiating position, and gives you a clear roadmap for capital planning from day one.
If you’re acquiring a multifamily property in Arizona and want a professional exterior assessment, American Exterior Systems can help. We’ve inspected and renovated apartment communities across Phoenix, Scottsdale, Mesa, Tempe, Chandler, Tucson, and throughout the state. Give us a call at 480-707-3707 or visit americanexteriorsystems.com to learn more.
American Exterior Systems is a Phoenix-based exterior contractor specializing in large-scale capital improvements for multifamily and commercial properties. Services include exterior painting, protective coatings, roofing, wood replacement, structural repairs, and drone inspections.