Who is responsible for HVAC repairs in a commercial lease?

It depends on the lease type. In gross leases, landlords typically handle HVAC. In NNN leases, tenants often pay for HVAC maintenance and sometimes replacement. HVAC responsibility is one of the largest potential repair costs, so better-drafted leases spell it out explicitly.

Can a landlord make me pay for structural repairs?

In residential leases, structural repairs are almost always the landlord's responsibility under habitability laws. In commercial leases, it depends entirely on the contract. NNN leases can make tenants responsible for nearly everything.

What does 'maintain in good repair' mean in a lease?

'Maintain in good repair' is vague language that courts interpret broadly. It can mean routine upkeep (sweeping, lightbulb replacement) or be stretched to cover major system repairs. Better-drafted leases replace it with specific written terms.

What is a maintenance exclusion clause?

A maintenance exclusion lists items that are explicitly the landlord's responsibility regardless of who would otherwise bear the cost — typically structural elements, roof, exterior, and base building systems. These rank among the most valuable tenant protections in negotiation.

What happens if the landlord doesn't make required repairs?

In residential leases, tenants can typically withhold rent, make repairs and deduct costs, or terminate the lease for uninhabitable conditions. Commercial tenants have fewer automatic rights and must rely on contract remedies specified in the lease.

Maintenance Responsibility Clause

What This Clause Means

Your landlord is responsible for maintenance. Until they aren't. The exact line between what your landlord fixes and what you pay for is determined by your maintenance clause — and in many leases, especially commercial NNN leases, that line has been drawn deeply in the tenant's territory.

Maintenance Clauses Determine Who Pays When Things Break

Every lease has a maintenance and repair clause that allocates responsibility for maintaining the property between landlord and tenant. In residential leases, landlords are generally responsible for major systems (HVAC, plumbing, electrical, roof, structure) and tenants are responsible for minor maintenance (changing filters, replacing batteries, keeping drains clear). But lease language can shift significant costs. A residential lease that makes the tenant responsible for 'HVAC maintenance and repairs' can cost a tenant $2,000–$8,000 for a system replacement that state law would otherwise require the landlord to handle.

NNN Leases Transfer Almost All Maintenance Responsibility to Tenants

In triple-net (NNN) commercial leases, the tenant typically pays base rent plus their proportionate share of property taxes, insurance, and — most significantly — common area maintenance (CAM) charges that include building maintenance costs. But NNN leases often go further, making the tenant directly responsible for all maintenance within their premises, including HVAC, plumbing within the unit, electrical systems, and sometimes even structural elements. A tenant in a standalone NNN retail building who gets a 20-year-old HVAC system might spend $15,000–$25,000 on a replacement that, in a gross lease, the landlord would handle. This is one reason understanding lease structure before signing matters so much.

The Most Expensive Maintenance Disputes Involve HVAC Systems

Air conditioning and heating system responsibility is the most contested maintenance issue in commercial leases. A landlord who delivers a 15-year-old HVAC system with the lease is delivering a system that may need $20,000 in repairs within the first 2 years. Who pays? It depends on the lease language — specifically whether the tenant is responsible for 'maintenance' (filter replacement and servicing) or 'maintenance and repair' (including capital replacement). A tenant who agrees to maintain and repair the HVAC system in a commercial lease can end up responsible for a complete system replacement costing $15,000–$40,000 depending on building size and system complexity.

An HVAC Condition Report Is a Common Pre-Signing Step in Commercial Leases

For commercial leases where the tenant is taking on HVAC responsibility, a $300–$500 pre-signing inspection from an independent HVAC company is a common step. The report documents the system's age, condition, and estimated remaining useful life, and commonly becomes the basis for negotiated terms: the landlord replacing old systems before lease commencement, a cap on the tenant's HVAC repair responsibility at a specified annual dollar amount (e.g., $1,500/year), a landlord obligation to maintain a service contract for the HVAC system throughout the lease term, or landlord responsibility for capital replacements (systems over $2,500 in cost) while the tenant handles routine maintenance.

Residential Tenants Have More Statutory Protection — But Not Unlimited Protection

State habitability laws in nearly all states (Arkansas is the notable exception) require residential landlords to maintain rental units in habitable condition — this means functional heat, plumbing, electrical systems, and structural integrity. A landlord who ignores a burst pipe or a broken furnace in winter is violating state law, not just their lease obligations. But 'habitability' has a floor, not a ceiling — it means 'livable,' not 'in perfect condition.' A broken dishwasher is probably not a habitability issue. A broken heating system in January is. When a landlord fails to make legally required repairs, you may have the right to repair and deduct costs from rent, withhold rent, or terminate the lease — depending on your state.

Specific, Unambiguous Maintenance Language Prevents Disputes

Vague maintenance language creates expensive disputes. 'Tenant shall maintain the Premises in good condition' is too broad — it could be argued to mean the tenant is responsible for everything. Better-drafted leases specify exactly what each party is responsible for. A common allocation puts the landlord on: structural elements, roof, exterior walls, parking lot, major systems (HVAC if in a gross lease context), plumbing and electrical systems outside the premises — and the tenant on: interior surfaces, fixtures, equipment brought in by tenant, and routine HVAC servicing (filter changes, annual inspections). Specificity looks like — 'HVAC maintenance up to $1,500 per year; replacements above that amount are landlord's responsibility.'

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Common Red Flags

Better-drafted clauses define clearly which systems are landlord vs tenant responsibility
Negotiated leases commonly cap tenant repair responsibility per incident (e.g., repairs under $500 are tenant's; above that is landlord's)
Tenant-favorable versions exclude structural elements, roof, and base building systems from tenant responsibility
A common negotiated term requires the landlord to disclose known defects and existing issues at lease start

How This Clause Is Commonly Negotiated

Negotiated maintenance clauses specify exactly what each party is responsible for — vague language is where disputes start. Common tenant protections include a cap on HVAC repair responsibility at a fixed dollar amount per year with landlord responsibility for major replacements, and a pre-signing HVAC inspection on any commercial lease. In residential leases, language that attempts to waive state habitability requirements is a recognized red flag.

Better-drafted clauses define clearly which systems are landlord vs tenant responsibility
Negotiated leases commonly cap tenant repair responsibility per incident (e.g., repairs under $500 are tenant's; above that is landlord's)
Tenant-favorable versions exclude structural elements, roof, and base building systems from tenant responsibility
A common negotiated term requires the landlord to disclose known defects and existing issues at lease start

Example Language: Bad vs. Better

Landlord-Friendly (Risky)

"Tenant shall, at its sole cost and expense, keep and maintain the Premises and all mechanical, electrical, plumbing, HVAC, and other building systems serving the Premises in good order, condition, and repair throughout the Lease Term."

Tenant-Friendly (Better)

"Landlord shall maintain the structural components of the building, roof, exterior walls, and base building HVAC, plumbing, and electrical systems. Tenant shall maintain the Premises interior, including cosmetic repairs and Tenant-installed equipment. Capital expenditures over $500 are Landlord's responsibility."

Frequently Asked Questions

Who is responsible for HVAC repairs in a commercial lease?: It depends on the lease type. In gross leases, landlords typically handle HVAC. In NNN leases, tenants often pay for HVAC maintenance and sometimes replacement. HVAC responsibility is one of the largest potential repair costs, so better-drafted leases spell it out explicitly.
Can a landlord make me pay for structural repairs?: In residential leases, structural repairs are almost always the landlord's responsibility under habitability laws. In commercial leases, it depends entirely on the contract. NNN leases can make tenants responsible for nearly everything.
What does 'maintain in good repair' mean in a lease?: 'Maintain in good repair' is vague language that courts interpret broadly. It can mean routine upkeep (sweeping, lightbulb replacement) or be stretched to cover major system repairs. Better-drafted leases replace it with specific written terms.
What is a maintenance exclusion clause?: A maintenance exclusion lists items that are explicitly the landlord's responsibility regardless of who would otherwise bear the cost — typically structural elements, roof, exterior, and base building systems. These rank among the most valuable tenant protections in negotiation.
What happens if the landlord doesn't make required repairs?: In residential leases, tenants can typically withhold rent, make repairs and deduct costs, or terminate the lease for uninhabitable conditions. Commercial tenants have fewer automatic rights and must rely on contract remedies specified in the lease.