Summer Maintenance Checklist for Denver Rental Properties: What Landlords Should Do Right Now
July in Denver means afternoon thunderstorms, 95-degree days, and hailstorms that seem to appear out of nowhere. We've seen what deferred summer maintenance does to a rental property — and to a landlord's budget — by the time October rolls around.
If you haven't done a summer walk-through yet, now is the time. Here's what we check at every property we manage this time of year.
1. HVAC: Don't Wait for a 90-Degree Emergency
This one tops our list every summer, without exception. A failing AC unit on a Friday in July means an emergency service call at premium rates — and a very unhappy tenant. In Colorado, landlords are required to maintain habitable conditions, and functional cooling during extreme heat is increasingly part of that standard. The Colorado warranty of habitability statute (C.R.S. § 38-12-505) outlines those minimum requirements.
What to do now:
- Replace the air filter if it hasn't been done in the last 60–90 days (or confirm your tenant has)
- Have the system serviced by an HVAC tech before the heat peaks — scheduling in July usually means a 1–2 week wait
- Clean debris from around outdoor condenser units
- Check that supply vents inside the unit are open and unobstructed
A $120 preventive tune-up is a much easier conversation than a $3,000 compressor replacement.
2. Roof and Gutters After Hail Season
Front Range hail season runs roughly May through August, and Denver is one of the most hail-prone metros in the country. By July, there's a good chance your property has already been hit at least once — and you may not know it yet.
We recommend a post-storm roof inspection after any significant hail event. Even minor hail can damage shingles in ways that don't cause immediate leaks but will accelerate deterioration and void a roof warranty. Many roofing contractors offer free inspections, and if damage is found, your homeowner's or landlord's insurance policy may cover replacement with only the deductible out of pocket.
While you're at it: clean the gutters. A clogged gutter during a Colorado cloudburst can channel water directly against your foundation.
3. Exterior and Landscaping
Denver's water restrictions vary by municipality and shift throughout the summer — if your property has a sprinkler system and your tenant isn't managing it, now is a good time to verify the schedule is compliant with current restrictions. Denver Water publishes its current outdoor watering schedules and restrictions by address, which is worth bookmarking.
Other exterior items to eyeball:
- Fence condition — posts heave after a freeze-thaw cycle, and a leaning fence is a liability issue
- Exterior paint or stain — summer UV accelerates cracking, especially on south-facing surfaces
- Window screens — a minor item, but tenants notice them and it affects perception of the property's care
- Driveway or walkway cracks — freeze-thaw cycles in Colorado expand small cracks quickly
4. Water Heater and Plumbing
Summer is quieter for plumbing emergencies than winter, but it's a good time to inspect the water heater — look for corrosion around connections, check the age (standard tank heaters have a 10–12 year lifespan), and flush sediment if it's been more than a year. Denver's water has moderate mineral content, and sediment buildup reduces efficiency and can shorten heater life.
Also worth confirming: do you know where the main water shutoff is for the property? Does your tenant? A burst pipe in an older home can do tens of thousands of dollars in damage in under an hour. A laminated card in the utility room with shutoff locations takes five minutes to make.
5. Smoke and Carbon Monoxide Detectors
Colorado law requires working smoke detectors in every sleeping area and on each level of the home. Carbon monoxide detectors are required in any home with gas appliances or an attached garage — see C.R.S. § 38-45-101 for the full requirements. A summer walk-through is a natural time to test these and replace batteries.
We've seen landlords hit with fines — and face significant liability exposure — after a claim surfaces that detectors weren't functional. It's a quick checkbox with serious consequences if missed.
A Note on Tenant Communication
When we schedule a summer maintenance walk-through at a property we manage, we give tenants proper written notice (Colorado requires at least 24 hours for non-emergency entry) and explain the purpose. Framing it as "routine maintenance to keep the property in great shape for you" tends to go over much better than "inspection." Same visit, different energy.
If you'd like us to handle summer maintenance coordination for your Denver rental, give us a call at 303-228-7800 or visit rentmyhaven.com. You can also learn more about how My Haven handles maintenance and owner communications on our services page. We manage the details so you don't have to.
My Haven is a full-service property management company proudly serving the Denver metro area.
