Spring Startup
Full April startup — pads, pump, float, belt, water-line and tune for the season ahead.
Swamp Cooler Service
Built for the Desert.
Maintained for Comfort.
Decades of evaporative cooler experience across Arizona homes, casitas and outbuildings. Full seasonal service, expert repairs, and refrigerated air conversions when you are ready for the upgrade.
- Licensed, Bonded
& Insured - Residential &
Commercial - Expert Technicians.
- Fast
Response - Honest
Pricing - ROC #358041
Arizona
AZ's Original Cooler
Old Tech.
Smart Cooling.
Swamp coolers — evaporative coolers — work the way our desert wants them to: water passes through pads, hot dry air pulls through, and the home cools as that air evaporates moisture. In Arizona's low-humidity months, that simple physics delivers serious comfort at a fraction of the energy cost.
But pads clog, pumps die, motors seize, and hard water scales everything it touches. Proper twice-a-year service is what separates a swamp cooler that purrs all season from one that limps into August.
- Up to 75%Lower energy use vs refrigerated AC
- 3000–5000CFM typical airflow
- 2 visits/yrKeeps it humming
What We Do
Full-Service Care.
Every part of your swamp cooler, every season — covered.
Fall Shutdown / Winterization
October drain-down, water-line bleed, cover install — protect your unit from freeze damage.
Pad Replacement
Premium aspen or rigid cellulose pads installed for maximum airflow and cooling output.
Pump & Float Repair
Failed pump? Stuck float? We replace recirc pumps and adjust floats so water flows right.
Motor & Belt Service
Bearings, belt tension, blower motor swaps — quiet operation and consistent CFM restored.
Mineral Buildup Cleaning
Hard-water scale chokes performance. We descale, flush and treat the pan and distributor.
Seasonal Service
Your Cooler's
Yearly Rhythm.
Two visits a year — bookended by Arizona's cooling season — protect your equipment, your comfort and your utility bill.
April · Spring Startup
Wake the system up
before the first hot day.
We swap the pads, inspect and replace the pump if needed, reseat the float, test belt tension, tighten the motor, restore water lines and tune the bleed-off so the unit runs cool and clean.
Why it matters: starting fresh means a full season of efficient cooling and zero mid-July emergencies.
October · Fall Shutdown
Winterize the unit
before the first freeze.
We drain the pan, bleed the water line back to the home, disconnect supply, cap the duct opening, and install a weatherproof cover so the unit rides out the cold months without freeze damage.
Why it matters: a single hard freeze on a charged water line can crack fittings, ruin pumps and stain ceilings.
Ready for Refrigerated Air?
Swamp Cooler.
Or Refrigerated Upgrade?
Evap coolers are fantastic — until they aren't. As monsoon humidity builds, evaporative cooling loses its edge and homes feel sticky. If you are chasing consistent comfort across every month, or thinking about resale value, converting to refrigerated air may be the right move.
We will walk your home, check your ductwork, verify your electrical panel and right-size a system — no pressure, just honest numbers.
- Full home assessment
- Ductwork compatibility check
- System right-sizing
- Financing available
Our Swamp Cooler Process
What to Expect
A straightforward seasonal visit — from first call to a cooler home.
- 1
Schedule
Book your pre-season visit in April or October.
- 2
Inspect
Full diagnostic of pads, pump, float, motor and ducting.
- 3
Service
Repairs, pad swap, descale and parts replaced as needed.
- 4
Test + Tune
Verify CFM, water flow and even distribution.
- 5
Walk-Through
Winterize or hand off — you know exactly what was done.
East Valley Mechanical
Why Homeowners Trust EVM.
The same standards we'd want for our own family's home.
- Decades of AZ Evap ExperienceWe have serviced AZ swamp coolers across every roof style.
- Licensed + BondedROC #358041 — fully licensed and insured in Arizona.
- Flat-Rate PricingQuoted up front, before any work begins. No hourly surprises.
- Background-Checked TechsTrained, uniformed, respectful of your home and time.
Answers · No Pressure
Swamp Cooler FAQs.
How often does my swamp cooler need service?
Twice a year is the rule in Arizona — a spring startup in April and a shutdown in October. Pads, pumps, motors and floats all degrade in our heat and hard water, so two short visits a year prevent the expensive mid-summer breakdowns and add years to the unit.
When should I schedule spring startup?
Aim for early-to-mid April, before daytime temps push past 90 degrees. Booking ahead gets you on the calendar before the rush, and a startup completed before peak heat means new pads, fresh water and a fully tuned unit on the very first hot day.
How long do swamp cooler pads last?
Standard aspen pads typically last one cooling season in our climate — replace them every spring. Rigid cellulose pads can last two to three seasons when properly maintained. Either way, mineral buildup and sun damage from AZ summers wear them down faster than in cooler regions.
Can I switch from a swamp cooler to refrigerated AC?
Yes, and it is one of the most requested upgrades we handle. We assess your existing ductwork, electrical capacity and home layout, then right-size a refrigerated system and remove or cap the old evap unit. Financing is available and many homeowners see strong resale value gains.
Why is my cooler smelling musty?
Musty odor almost always means standing water, biofilm on old pads, or a clogged drain pan. A full cleaning, fresh pads, descaling of the distribution lines, and sometimes a bleed-off line correction clears it up. Skipping a fall shutdown is a common cause.
Do you service rooftop AND side-mount units?
Both. Our technicians are equipped for rooftop, side-mount window-style and ground-mount evaporative coolers across single-story homes, two-story homes, casitas, garages and outbuildings. We carry parts for every common brand on every truck.
Free Estimates · No Pressure
Request a Free
HVAC Estimate.
Share a few details and our team will respond within one business day with next steps and honest, upfront pricing. For 24/7 emergencies, call us directly.
Licensed, Bonded & Insured·ROC #358041·Serving Chandler, Mesa, Gilbert, Tempe & Phoenix
- Call(623) 323-8460
- Emailinfo@eastvalleymechanical.com
- Service AreaServing the East Valley, Arizona