Returning to Your Coachella Valley Home After Summer

Start outside, in the morning, before the day heats up. Walk the full perimeter once slowly rather than jumping between problem spots — the pattern matters more than any single crack.

Roof

Look from the ground with binoculars, or from a ladder at the edge. You are checking for slipped or cracked tile, lifted flashing at penetrations, blown-in palm fronds and gravel clogging valleys, and any dark staining that suggests standing water. On flat and low-slope foam roofs, common in Palm Desert and Rancho Mirage, look for blistering, chalking, and ponding rings. Do not walk a tile roof after a summer of heat cycling; tile becomes brittle and cracks underfoot.

Stucco, paint, and trim

Hairline vertical cracks are normal. Stair-step diagonal cracks, cracks wider than a credit card, and separation at window corners deserve a professional look. UV strips paint fastest on west elevations and parapet caps — chalky residue on your hand means the coating is done protecting the substrate.

Gutters, scuppers, and drainage

Monsoon debris blocks scuppers and canales, and the next storm backs water against the parapet. Clear them and confirm that grade still slopes away from the foundation; summer storms move decomposed granite around more than people expect.

Doors, windows, driveway, and fencing

Test every exterior door for a solid seal, replace worn door sweeps (this is also your best scorpion defense), check window glazing for fogging between panes, look for new settlement cracks in driveways and patios, and confirm gates, latches, and fence panels survived the wind.

Desert air conditioners run 2,500–3,500 hours a year. Even set at a vacation temperature of 82–85°F, your system cycled all summer while you were gone, pulling dust through filters nobody changed.

Filters and airflow

Replace every filter first — a loaded filter starves the coil, drops capacity, and can freeze the evaporator. Then feel the airflow at the registers farthest from the air handler. Weak airflow with a fresh filter points to duct leakage, a dirty blower wheel, or a restricted coil.

Capacitors and hard starts

Stand by the condenser on start-up. A click-hum-click that resolves after a few seconds, or a fan that needs a nudge to spin, usually means a weak run capacitor. It is a $150–$300 repair now and a compressor replacement later.

Refrigerant, cooling split, and condensation

After 15–20 minutes of runtime, the difference between return-air and supply-air temperature should be roughly 16–20°F. Much less usually means low charge (a leak — refrigerant is not consumed), a dirty coil, or airflow problems. Check that the condensate line is draining and not backing up into the pan.

Thermostat

Test both cooling and heating modes before you need them; desert nights in December drop into the 40s. Re-pair smart thermostats to Wi-Fi and reset any summer vacation schedule.

For the deeper version of this, read our desert HVAC survival guide and the emergency HVAC repair guide.

If you shut the main off before you left — and you should have — turn it back on slowly, then walk to the meter and watch. Any movement with every fixture closed means water is going somewhere it shouldn’t.

Water heater

Coachella Valley water is hard, and a summer of sitting concentrates sediment at the bottom of the tank. Flush it, inspect the anode rod, test the temperature-pressure relief valve, and set the thermostat to 120°F. See how often to flush a water heater in the desert and why desert hot water runs scalding in summer.

Fixtures, toilets, and hose bibs

Run every faucet, shower, and tub until the water runs clear — this also refills dry P-traps and kills that vacant-house sewer smell. Dye-test toilet tanks for silent flapper leaks, which quietly add hundreds of gallons a month. Check hose bibs and irrigation connections for drips; sun-baked rubber washers fail every couple of seasons out here.

Leaks and pressure

Look under every sink and behind the washer for staining. Warm spots on the floor, running-water sounds with everything off, or an unexplained bill spike point to a slab leak — catch it early. Static pressure should read 50–75 PSI on a $12 hose gauge; above 80 PSI shortens the life of every appliance in the house.

Monsoon lightning and utility surges do quiet damage over the summer. This pass is mostly testing what already exists rather than fixing anything.

• Smoke and CO detectors: replace batteries and press test on every unit. Detectors older than 10 years should be replaced outright.
• GFCI outlets: press test then reset in kitchens, bathrooms, garage, patio, and pool equipment area. A GFCI that will not reset has done its job and needs replacement.
• Ceiling fans: run each in both directions and check for wobble from dust-loaded blades.
• Garage door: test the photo-eye reverse, lubricate rollers, and check the opener’s battery backup.
• Landscape lighting: low-voltage fixtures and transformers take a beating from heat and irrigation overspray.
• Smart home devices: re-pair hubs, cameras, and thermostats; replace door and window sensor batteries.

An empty, cool, irrigated house is exactly what desert pests want in August. What you find now tells you how much pressure you have before the season starts.

• Scorpions: walk the patio and perimeter after dark with a blacklight — they fluoresce. Entry is almost always under doors, under garage doors, and at utility penetrations.
• Rodents: check the garage, attic access, pantry, and any stored soft goods for droppings or chew marks. Roof rats follow bougainvillea and palm skirts onto the roof.
• Ants: trails near sinks, dishwashers, pet bowls, and irrigation heads mean they are hunting water, often from a tiny leak.
• Wasps: check eaves, patio covers, and light fixtures for nests built while nobody was home.
• Spiders: webs are an indicator, not the problem — heavy webbing means the insects they eat are abundant nearby.
• Cockroaches: check drains, under sinks, and the garage; dry traps over the summer are an open door.

More detail in our summer pest behavior guide.

Even on a summer service plan, the equipment pad took a beating. Inspect the pump housing and motor for cracks, leaks, or bearing noise; check filter pressure against the clean baseline and backwash or clean cartridges; test chemistry for chlorine, pH, alkalinity, and cyanuric acid; and inspect a salt cell for scale, which forms fast in hard desert water.

Verify automation schedules, timers, and heater ignition before the first cool evening. Then watch water level over a few days: evaporation in October runs roughly a quarter inch a day, so anything faster is a leak in the plumbing, shell, or equipment. Our pool maintenance calendar covers the rest of the season.

Irrigation is where returning snowbirds lose the most money without noticing. Run every zone manually and watch it: broken or misaimed heads, drip emitters blown off the tubing, and geysers hidden behind shrubs waste hundreds of gallons per cycle. Check valve boxes for standing water, which almost always means a leaking diaphragm or solenoid.

Remove plants that did not survive, prune sun-scorched growth back to live wood, and reset the smart controller to a fall schedule instead of the summer program it has been running since May. If your CVWD or Coachella Valley water bill jumped over the summer, this guide explains the usual culprits.

Do this last, with the AC already running and the house airing out. Check ceilings and upper walls for staining that indicates a roof or plumbing leak. Look for buckled flooring, lifted tile grout, and gaps at baseboards from months of heat expansion. Smell for musty odors near HVAC returns and closets — that combination of monsoon humidity and a small leak is how desert homes get mold.

Clean window and slider tracks packed with blown dust; sliders that grind will eventually damage the roller assembly. Check drywall corners for hairline cracking, and confirm every interior door still swings freely, which is a low-tech way to notice foundation movement.

• Cameras and doorbell: confirm they reconnected to Wi-Fi and that cloud or local recording is actually saving.
• Smart locks: re-key or re-code any access you gave to home watch, pool, or cleaning vendors over the summer, and replace lock batteries.
• Alarm system: test each sensor, confirm monitoring is active, and update the emergency contact list.
• Leak detectors: place or replace units under sinks, at the water heater, and behind the washer — the cheapest insurance a seasonal home can carry.
• Motion lights: replace failed bulbs and re-aim fixtures moved by summer wind.