Commercial Property Insurance in 2026: How Documented Maintenance Affects Your Rates

• Commercial property premiums grew more than 15 percent a year from 2019 to 2024. In 2026 the market turned: U.S. property rates fell 10 percent in the first quarter and 13 percent in the second, according to Marsh.
• The relief is uneven. Loss free accounts with complete data and strong risk management get the best terms; accounts with poor loss experience or thin data still face tighter terms.
• Percentage deductibles are common in Texas. A 2 percent wind and hail deductible on a $40 million building means the owner keeps the first $800,000 of each storm loss.
• Risk engineers check that fire protection works, impairments are controlled and earlier recommendations are closed. Evidence closes recommendations; promises do not.
• The records that carry the most weight are infrared surveys with repairs, sprinkler impairment and valve logs, and water damage controls.

The last five years were hard on owners. Researchers writing for Brookings found that average commercial property insurance premiums grew more than 15 percent a year from 2019 to 2024, with a jump of nearly 30 percent in 2023 alone, and that insurance roughly doubled as a share of rental income and operating expenses (Brookings, July 2026).

Early on, owners passed about half of those increases through to tenants. By 2024 that link had nearly disappeared, so owners are now absorbing more of the cost through lower net operating income.

The market has since turned. Marsh reported U.S. property rates down 10 percent in the first quarter of 2026, with catastrophe exposed programs down 16 percent (Artemis on Marsh, Q1 2026), and down 13 percent in the second quarter (Insurance Business on Marsh, Q2 2026).

A soft market is the time to fix the program, not just enjoy the savings. Marsh's placement leaders have warned that a severe storm season could turn conditions again.

Average rate decreases hide a wide spread. RT Specialty's May 2026 U.S. property review notes that loss free, well performing accounts have received more favorable consideration, while accounts with incomplete data or unfavorable loss experience in storm prone areas still face tighter terms. It also stresses that an accurate statement of values and complete COPE data, meaning construction, occupancy, protection and exposure, remain critical (RT Specialty, May 2026).

In practice, an office building misses the cuts for a few repeat reasons:

• Loss history: repeat water claims, a freeze loss or a fire in the last five years.
• Open recommendations: risk engineering recommendations from the last survey that were never closed.
• Thin data: outdated values, missing roof ages, unclear sprinkler coverage or no record of system upkeep.
• Visible conditions: storage under sprinklers, blocked electrical rooms, impaired systems or poor housekeeping on the walk.

Brokers increasingly advise reinvesting part of the premium savings in valuations, COPE data, risk engineering and resilience, the approach Aon recommends in its spring 2026 market update reported by Canadian Underwriter.

A percentage deductible is calculated on the insured value of the property, not on the size of the loss. Wind and hail deductibles typically run from 1 to 5 percent of insured value, apply again to each separate storm and, in Texas, can apply to any windstorm, not just named storms (Latent Insurance, July 2026).

For a commercial building, the numbers get large quickly. As an illustration:

• A building insured for $40 million with a 2 percent wind and hail deductible retains the first $800,000 of every storm loss.
• The same building with a 5 percent deductible retains $2 million per storm.
• A $600,000 hail loss to the roof and rooftop units on that building would be paid entirely by the owner at either level.

That makes maintenance a balance sheet issue. Every roof drain, flashing detail and rooftop unit that holds up in a storm is money the owner keeps, and documented roof condition is one of the things underwriters weigh when setting wind and hail terms on older roofs.

An insurer's loss control or risk engineer visits to judge the quality of the risk, and the report goes straight to the underwriter. The engineer checks that fire protection systems and their water supply work, reviews prevention procedures, and updates loss estimates that can move the premium. Serious hazards can be flagged as a condition affecting the risk evaluation, which changes coverage and terms (MeyerFire).

On a typical office building visit, expect the engineer to look at:

• Sprinklers and water supply: valves open and secured, gauges normal, fire pump tested, impairment procedure in use.
• Electrical: the latest infrared survey, whether its findings were repaired, and clear working space in electrical rooms.
• Water damage controls: leak detection, shutoff valves, vacant floor checks and freeze protection.
• Housekeeping: storage under sprinklers, in riser rooms and in mechanical spaces.
• Emergency power and roofs: generator test logs and roof condition.
• Earlier recommendations: what was recommended last time and what was done about it.

How recommendations get closed

Recommendations are discussed during the survey and issued in writing. They close when the insurer sees evidence, not intentions: a contractor report, a dated photo of the repaired condition, a revised procedure or an inspection log showing the issue has stayed fixed. Open recommendations follow the building to the next renewal, so track each one like a work order, with an owner, a due date and proof attached.

Underwriters see thousands of submissions. The records that separate one office building from the next are the ones that show conditions over time, not just that a contractor visited once.

• Infrared surveys and repairs: the annual thermographic report plus proof that each hot spot was fixed and rescanned. Our NFPA 70B guide for commercial buildings explains the program behind it.
• Sprinkler valve and impairment records: weekly or monthly valve logs and a record of every impairment with its restoration test, covered in our NFPA 25 guide for office buildings.
• Water damage controls: where leak sensors and shutoffs are installed, how vacant floors are inspected and how the building prepares for freezes. See our water leak detection guide and our guide to vacant building insurance.
• Generator and fire pump logs: monthly run records and annual tests.
• Roof inspections: dated condition reports, especially after storms.
• Closed recommendations: each prior recommendation with the evidence that closed it.

The common thread is continuity. A year of dated, photographed rounds from the same locations tells an underwriter far more than a binder of annual invoices.

1. 1. Start 90 to 120 days before renewal with your broker.
2. 2. Update the statement of values and COPE data: construction, roof age, sprinkler coverage, protection systems and occupancy.
3. 3. Close every open risk engineering recommendation and gather the evidence for each.
4. 4. Write a short narrative for any claim in the last five years: cause, fix and what changed so it will not happen again.
5. 5. Package the maintenance records that matter: infrared, sprinkler, water controls, generator, roof.
6. 6. Ask your broker to model deductible options, including percentage wind and hail deductibles, against your maintenance and roof condition.
7. 7. Put part of any savings back into the controls that earned them.

Are commercial property insurance rates going down in 2026?

Yes, on average. Marsh reported U.S. property rates down 10 percent in the first quarter of 2026 and 13 percent in the second, but well managed, loss free accounts are seeing the most relief.

How can I lower my commercial property insurance premium?

Keep values and COPE data current, close risk engineering recommendations with evidence, document maintenance of fire protection, electrical and water systems, and review deductible options with your broker.

What is a percentage deductible?

A deductible calculated as a percentage of the property's insured value rather than the loss. A 2 percent deductible on a $40 million building is $800,000 per occurrence.

What does an insurance risk engineer inspect?

Fire protection and water supply, impairment handling, electrical maintenance and infrared results, water damage controls, housekeeping, emergency power, roofs and progress on earlier recommendations.

Which maintenance records do insurers look at most?

Infrared surveys with repairs, sprinkler valve and impairment records, water damage controls, generator and fire pump logs, roof inspections and evidence that prior recommendations were closed.

FacilityOps AI (RoboSkill Inc.) is an autonomous inspection platform that produces the kind of evidence underwriters and risk engineers expect: consistent, dated and tied to specific equipment. A FacilityOps inspection robot walks the route through riser rooms, electrical rooms, mechanical rooms, pump rooms and vacant floors on schedule, and captures the same points from the same position every round.

• Fire protection: sprinkler valve positions and gauges photographed every round, with closed valves reported on every pass until reopened.
• Electrical: thermal imaging of accessible panels and switchgear between annual surveys, and rescans that prove a hot spot was fixed.
• Water controls: wet floors, drips, ceiling stains and vacant floor conditions found and recorded, backed by sensor hubs at known trouble spots.
• Housekeeping: storage under sprinklers and in front of electrical equipment flagged before the engineer sees it.

Every finding is stamped with the time and location, becomes a work order and is confirmed fixed on the next pass. That turns a risk engineering recommendation into a closed item with photos, dates and a history showing it stayed fixed, which is exactly the proof an insurer directs owners to provide.

At renewal, the property team can hand the broker a clean package: a year of rounds, every finding and its fix, and conditions across every system on the route. Site visits get shorter because the engineer can review the record instead of rebuilding it. Across a portfolio, the same view shows which buildings are earning better terms and which need attention before the next survey.

The robot runs fully autonomously, and technicians can take manual control at any time. The platform is hardware agnostic: robots and sensor hubs are the usual delivery, and drones, other robots or a technician's own camera can feed the same record.

Show the underwriter how the building is run, not just that the contractor came once a year.

FacilityOps documents conditions. It does not set rates, replace your broker or risk engineer, or provide insurance advice, and it does not certify compliance.

• Water Leak Detection and Water Damage Prevention for Commercial Buildings
• Vacant Building Insurance: The 60 Day Vacancy Clause and How to Inspect Empty Floors
• How to Keep Inspection Evidence for Audits and Insurers