If you lease commercial space in the Dallas-Fort Worth area, an air conditioning failure in July is a business emergency. You need to know who writes the check before you authorize the work.
Defining the triple net structure
Landlords often use the triple net lease, or NNN, to pass operational costs to the tenant. In this arrangement, you pay a base rent plus your share of three key expenses: property taxes, insurance and operating expenses. For a single-tenant property, this generally means you maintain the entire premises. In a multi-tenant space, this typically appears as Common Area Maintenance, or CAM, fees for shared spaces like parking lots and hallways.
Maintenance compared to capital improvements
Your contract likely states you must maintain the premises. This clearly covers changing filters, cleaning coils and fixing minor leaks. The situation changes when a major system reaches the end of its life. A complete replacement of a roof or HVAC unit is a capital expenditure because it adds long-term value to the property.
Determining financial responsibility
Disputes occur when the lease assigns repair duties to the tenant but is vague about replacements. In Texas, if a lease is completely silent on repairs and lacks an “as-is” clause, the landlord generally retains responsibility under the Implied Warranty of Suitability. However, most modern leases expressly waive this warranty.
When a lease waives the warranty but fails to distinguish between “repair” and “replace,” courts may look at specific factors to assign liability. These include whether the new equipment will outlast your lease term and if the system was already near failure when you moved in.
Steps to limit your exposure
You can protect your cash flow by inspecting the property thoroughly before signing any agreement. Negotiating a cap on annual maintenance costs prevents a single repair from ruining your budget. You can also ask for a warranty that major systems are in good condition at the start of your term.
Reviewing your financial liability
Commercial leases contain complex clauses that can result in unexpected expenses. If you face a demand to pay for a massive structural repair, you do not have to accept the landlord’s interpretation immediately. Seeking professional guidance helps you understand your financial liabilities before you write a check.

