Is a Townhome Inspection Worth It? What Buyers Could Miss Without One (2026)

Ninety percent of homes have at least one significant defect, according to the American Society of Home Inspectors. Not 90% of old homes. Not 90% of fixer-uppers. Ninety percent of all homes that go through a professional inspection, per ASHI data compiled in 2026. And buyers who use those findings to negotiate save an average of $14,000 off the purchase price.

Those numbers apply to townhomes just as much as single-family houses. Probably more, actually, because townhomes sit in a gray zone that confuses buyers into thinking they need less due diligence. It's not a full house (the HOA handles some things), so maybe the inspection is optional? It's attached to other units (so the building must be maintained by someone), so maybe the big problems are covered?

Neither of those assumptions holds up. A townhome has a roof. It has a foundation. It has exterior walls, a garage, an attic, plumbing that runs through its walls, an electrical panel, an HVAC system, and a sewer connection. Whether the HOA maintains some of those components or you do, the condition of every one of them affects your purchase price, your safety, and your budget for the next five years.

This guide covers the specific problems townhome buyers miss without an inspection, what those problems cost, and why the math on skipping it doesn't work.

What Townhome Buyers Assume the HOA Handles (But Often Doesn't)

The most common reason buyers skip a townhome inspection is the belief that the HOA is maintaining the building. And in some developments, the HOA does handle the roof, exterior paint, and shared landscaping. But in many townhome communities, the owner is responsible for far more than they realize.

In a typical San Diego townhome development, you own the structure from the roof down. That includes the roof over your unit, the exterior walls on your side, the foundation beneath you, the attic, the garage, and everything inside. The HOA might cover shared driveways, common landscaping, perimeter fencing, and exterior paint schedules, but the structural components are yours.

The CC&Rs spell this out, but most buyers don't read them carefully until after something breaks. The inspection fills the gap by evaluating every component you're responsible for and documenting its condition before you're legally obligated to maintain it.

For the full breakdown of how townhome ownership scope differs from condo ownership and how that changes the inspection, our townhome vs. condo inspection comparison covers it in detail.

The Roof You Didn't Know You Owned

This is the finding that hits townhome buyers the hardest because they didn't budget for it. The townhome roof is yours. If it needs replacement in three years, that's $5,000 to $15,000 coming out of your pocket, not the HOA's reserve fund.

During a tour, nobody climbs on the roof. From the ground, it looks fine. The inspector walks it (or uses drone imagery for tile roofs) and evaluates the membrane or shingle condition, flashing at every penetration and wall transition, drainage and gutter function, and the overall remaining useful life.

In San Diego, UV exposure is the dominant factor in roof aging. Roofing materials that are rated for 20 years in a temperate climate may show significant deterioration at 14 to 16 years here because of the roughly 266 sunny days per year. A roof that "should" last until 2032 might actually need attention by 2028. The inspection tells you where you stand now, not where the manufacturer's lifespan chart says you should be.

If the roof has already leaked and been repaired, the consequences of that leak may persist inside the building even after the surface repair. Our water damage inspection guide covers what stays behind after water enters the building assembly.

Foundation and Grading: The Ground-Level Problem Nobody Checks

Townhome foundations take stress from both sides (literally, since the units are attached) and from the site grading around the perimeter. If the soil slopes toward the foundation instead of away from it, every rainy season pushes water toward the structure.

San Diego's expansive clay soils in neighborhoods like Mira Mesa, Poway, Scripps Ranch, and parts of Escondido create additional foundation stress. These soils expand when wet and shrink when dry, creating a cycle of movement that can produce cracking in the foundation, slab, and interior finishes over time.

The inspector checks visible foundation surfaces for cracking patterns. Hairline shrinkage cracks are cosmetic. Wider cracks, stair-step cracks in block, or offset cracks where one side is higher than the other suggest differential settlement that warrants further evaluation by a structural engineer.

Grading evaluation is equally important. Water that pools against the foundation or drains toward the building (instead of away from it) is one of the most common and most consequential inspection findings. Correcting negative grading costs $1,500 to $5,000. Ignoring it can lead to foundation moisture problems, interior water intrusion, and mold conditions that cost far more.

The Attic Nobody Entered

Townhome buyers rarely think about the attic. It's not a living space. It's not visible during the tour. And it holds some of the most telling evidence of how the home has been maintained.

The inspector enters the attic (when accessible) and checks insulation type, depth, and coverage. Missing or inadequate insulation drives up energy costs and puts strain on the HVAC system. In San Diego's inland areas where summer temperatures push into the high 90s, an under-insulated attic can make the top floor of a two-story townhome uncomfortably hot and force the HVAC to run constantly.

Ventilation is the other attic concern. Proper ventilation requires balanced intake (usually at the soffits) and exhaust (at the ridge or near the peak). Blocked or missing ventilation traps heat in summer and moisture year-round, which degrades the roof deck from below while the sun degrades it from above. Shingles fail faster on poorly ventilated roofs.

The inspector also checks the underside of the roof deck for staining or darkening that indicates past or present moisture intrusion. Evidence of a roof leak that was repaired on the surface but never remediated in the attic is a common finding.

Plumbing Behind the Walls

The plumbing you see during a tour (faucets run, toilets flush, water looks clear) tells you almost nothing about the plumbing inside the walls. And in a townhome, the plumbing inside the walls is where the expensive problems live.

Supply line material matters. Copper supply lines last 50+ years and are generally reliable. CPVC (used in some 2000s-era construction) becomes brittle over time and can fail suddenly, especially near heat sources. Galvanized steel (in pre-1980s buildings) corrodes from the inside, restricting flow and eventually developing pinhole leaks behind drywall. The inspector identifies the pipe material at every accessible point and notes any signs of deterioration.

Water pressure testing reveals problems that running a single faucet won't. The inspector runs multiple fixtures simultaneously and measures the pressure. Low pressure across the unit often indicates supply line corrosion or a failing pressure regulator.

The water heater is one of the most predictable failure items in any home. Tank water heaters last 8 to 12 years. If the seller can't document when it was replaced, the inspector checks the serial number to determine the manufacture date and evaluates the unit's condition, safety devices, and venting.

The sewer lateral is underground and invisible. If the townhome has its own sewer connection (most do), a sewer scope ($200 to $500 as an add-on) shows you whether the pipe is clear or full of roots, corrosion, or structural damage. Our sewer scope inspection guide covers what the camera reveals.

Electrical Panels and Wiring Nobody Opens

Electricity works during the tour. Lights turn on. Outlets function. That tells you the house has power. It tells you nothing about whether the panel has capacity for your needs, whether the wiring is safe, or whether the system meets code.

The inspector opens the electrical panel and checks capacity (is it adequate?), panel type (Federal Pacific and Zinsco panels have documented safety concerns), breaker condition, wiring connections, and grounding. They test outlets throughout the unit for polarity, grounding, and GFCI protection in required locations (bathrooms, kitchens, garages, exterior).

In townhomes built in the late 1960s through mid-1970s, aluminum branch wiring is a possibility. Aluminum wiring expands and contracts differently than copper at connection points, which can cause overheating and create fire risk. The inspector identifies the wiring material and notes any conditions that warrant follow-up.

The Shared Wall Question

Townhomes share at least one wall with an adjacent unit. The inspector evaluates your side of that wall for moisture, cracking, and condition. They can't evaluate the other side or the interior of the wall assembly.

Shared wall moisture can originate from a neighbor's plumbing leak, building envelope failure on the adjacent unit's exterior, or condensation from temperature differentials between units. When moisture is detected on a shared wall, the source may require coordination with the HOA or the neighboring owner to identify and resolve.

Cracking patterns on shared walls sometimes indicate structural movement that affects multiple units. The inspector documents the patterns and, if they suggest structural concerns, recommends a structural engineer evaluation.

Stucco Exterior: San Diego's Signature Hidden Problem

Most San Diego townhomes have stucco exteriors. Stucco develops cracks over time from thermal cycling, minor settlement, and UV degradation. Those cracks become entry points for moisture.

The inspector evaluates the exterior for cracking patterns, sealant condition around windows and doors, weep screed visibility (the metal strip at the base of the stucco that allows moisture to exit), and any staining or damage that suggests water has been getting behind the surface.

Our stucco problems guide covers the most common issues found on San Diego stucco properties and what they cost to address.

The Math That Makes It Non-Negotiable

A townhome inspection costs $400 to $600. Here's what skipping it can cost:

Problem Missed	Typical Repair Cost	Preventable With Inspection?
Roof replacement	$5,000 to $15,000	Yes (condition and remaining life assessed)
HVAC replacement	$4,000 to $8,000	Yes (age and condition evaluated)
Sewer lateral repair	$3,000 to $15,000	Yes (with sewer scope add-on)
Stucco moisture remediation	$2,000 to $10,000+	Yes (exterior evaluation, moisture readings)
Water heater replacement	$800 to $2,000	Yes (age and condition checked)
Grading correction	$1,500 to $5,000	Yes (site drainage evaluated)
Electrical panel replacement	$1,500 to $3,000	Yes (panel opened and assessed)
Window replacement (multiple)	$2,000 to $8,000	Yes (every window checked)

Every line on that table costs more than the inspection. Most cost five to ten times more. And documented findings give you negotiation power: buyers who use inspection results negotiate an average of $14,000 off the purchase price, per industry data. That's roughly 25 to 35 times the cost of the inspection.

How 360 Evaluates Townhomes in San Diego

We scope every townhome inspection to match what you actually own. That starts with understanding the CC&Rs before we show up. If you own the roof and exterior, we walk the roof, check the foundation, evaluate the building envelope, and inspect the attic. If the HOA handles those, we adjust the scope and the price accordingly.

Inside the unit, we check every system: electrical, plumbing, HVAC, water heater, windows, doors, appliances, bathrooms, and laundry. We document findings with photos in a report that's built for decision-making, not filing.

When moisture findings suggest potential mold, we offer mold testing. When the townhome has its own sewer lateral, we recommend adding the sewer scope. For the full list of what we evaluate, our home inspection buyer's guide covers every system.

Schedule online or call (858) 707-7066.

Frequently Asked Questions

Q: Is a townhome inspection worth the cost?

Yes. The inspection costs $400 to $600. The problems it identifies (roof condition, HVAC age, plumbing concerns, electrical safety issues, sewer lateral condition) routinely cost $1,500 to $15,000 each to address. A single finding that leads to a negotiated price reduction or seller repair typically pays for the inspection many times over.

Q: What problems do townhome buyers miss without an inspection?

Roof deterioration not visible from the ground, plumbing corrosion inside walls, electrical panel safety concerns, grading that directs water toward the foundation, HVAC systems approaching end of life, sewer lateral problems underground, and moisture behind stucco exteriors. None of these are visible during a tour or walkthrough.

Q: Can I skip the inspection if the townhome looks recently renovated?

No. Cosmetic renovations (new paint, flooring, fixtures) cover surfaces without addressing underlying systems. A recently renovated townhome can still have a corroding sewer lateral, a failing roof membrane under fresh coating, outdated electrical service, and moisture behind the new paint.

Q: What's the difference between a townhome inspection and a condo inspection?

Scope. A townhome inspection typically includes the roof, foundation, exterior walls, attic, garage, and site drainage because you own those components. A condo inspection focuses on the unit interior because the building belongs to the HOA. The broader scope makes the townhome inspection more comprehensive and slightly more expensive.

Q: Should I add a sewer scope to my townhome inspection?

If your townhome has its own sewer lateral (most do), yes. The lateral is underground and invisible. Root intrusion, corrosion, and structural defects in the pipe can cost $3,000 to $15,000 to repair. The sewer scope costs $200 to $500 and shows you the pipe's actual condition.

Q: Do I need an inspection on a new construction townhome?

Yes. New construction involves dozens of subcontractors, and installation defects are common even in well-built developments. Missing insulation, disconnected ductwork, grading problems, and electrical wiring errors are among the most frequent new construction findings. Our new townhome inspection guide covers this in detail.

Q: Can inspection findings help me negotiate the purchase price?

Yes. Documented inspection findings provide specific, evidence-based grounds for requesting a price reduction, seller repairs, or closing credits. Industry data shows buyers who use inspection findings negotiate an average of $14,000 off the purchase price.

Q: What if the inspection finds nothing major?

That's a good outcome. Confirmation that the townhome's systems are in good condition is worth $400 to $600 in peace of mind. You close knowing what you're buying instead of hoping for the best. And the report serves as a baseline condition document you can reference for future maintenance planning.

Q: How long does a townhome inspection take?

Most townhome inspections take 2.5 to 3.5 hours on-site for a full-scope evaluation. Adding a sewer scope adds 30 to 45 minutes. The report is typically delivered within a few business days.

Q: What qualifications should my townhome inspector have?

Look for inspectors certified by ASHI (American Society of Home Inspectors) or InterNACHI (International Association of Certified Home Inspectors). Experience with attached homes and familiarity with San Diego's construction types (stucco, tile roofs, slab-on-grade foundations) are also important.

What Skipping It Actually Means

Skipping the inspection doesn't mean the problems don't exist. It means you find out about them after you own them. After you've signed. After your negotiation leverage is gone. After the seller's disclosure (which only covers what they knew about) is the last word on the property's condition.

A townhome inspection costs less than a weekend trip. The problems it catches cost as much as a car. The math isn't complicated. Get the inspection.

Cost estimates in this article reflect general ranges for the San Diego County market as of 2026 and will vary by property size, age, condition, and scope. Always confirm pricing with your inspector before scheduling.