Lower DEWA Bills with Efficient AC
Oct 5, 2025

Dubai summers don’t play fair. When the outside air feels like a hair dryer and humidity sneaks in at night, your AC becomes the hardest-working machine you own and the main line item on your DEWA bill. The goal isn’t to suffer through the heat. It’s to cool smarter, not harder.
Below is a practical, no-nonsense guide to lower your DEWA bill by making your AC run efficiently. Think small tweaks, regular care, and a couple of habits that quietly save you money month after month.
The big lever: temperature and timing
Set your AC to 24°C (or slightly higher). This is the baseline the local utilities keep repeating for a reason - each 1°C higher can save noticeable energy without sacrificing comfort. If you’re typically at 22°C, try 24 - 25°C for a week and watch your consumption. DEWA’s own guidance points to 24°C as the comfort-efficiency sweet spot and notes that raising the set point can cut AC consumption by up to ~5% per degree. DEWA+3DEWA+3DEWA+3
Use schedules. If your thermostat lets you set programs, cool more when you’re home (afternoons/evenings) and ease off when you’re out or asleep. Consistency beats yo-yoing the thermostat.
Auto fan, not full blast 24/7. “High” fan all day can churn air without benefit; auto mode lets the system cycle efficiently. If your space feels stuffy at 24–25°C, add a ceiling or pedestal fan - air movement lets you raise the set point and still feel cool.
Quick wins you can do today (20 minutes or less)
- Seal the hot spots. Close windows firmly; check balcony doors and those tiny bathroom exhaust gaps. A simple draft strip can keep humid air out and cool air in.
- Shade the glass. Pull curtains or blinds on sun-facing windows from 10am - 4pm. Heat gain through glass is massive here.
- Clear supply and return vents. Couch blocking a grill? Move it. Starved airflow makes the system run longer for the same cooling.
- Nudge the set point up by 1–2°C. Give it 48 hours; most folks adjust faster than they expect.
- Clean the washable filters. If you can safely access them, a gentle rinse and dry helps airflow right away. (If they’re damaged or non-washable, replace.)
Want a simple routine? Follow this checklist from our quick read on AC maintenance tips.
Maintenance that actually lowers your bill
Regular servicing isn’t a nice-to-have in the UAE; it’s how you keep the system breathing. Dust, fine sand, and humidity all gang up on your AC.
1) Coil cleaning (indoor & outdoor)
When coils are dirty, heat exchange drops, so the compressor runs longer. That’s paid KWh. Professional coil cleaning every 6 - 12 months restores efficiency and cooling capacity. If it’s been a year (or you see dust matting on the outdoor condenser), it’s time.
2) Filter regime
- Apartments: check monthly, clean every 4 - 6 weeks in summer.
- Villas or dusty zones: check every 2 - 3 weeks. Blocked filters = higher fan energy + longer compressor runtime.
3) Refrigerant level (gas) check
Low charge forces the system to run forever without reaching set point. If you’re noticing warm air or icing, schedule a check. Here’s a deeper dive on symptoms and fixes in our AC leaking water guide and our Split AC gas refill explainer (AR).
4) Electrical components
A weak capacitor can spike energy use and trigger hard starts. Replacing a failing capacitor early is cheap insurance against blown bills and no-cool nights. We do same-day capacitor replacement in Dubai.
5) Duct & drain sanity checks
Loose or leaky ducts leak money. Clogged drains raise humidity and make rooms feel warmer at the same temperature. Both issues increase runtime.
If you want numbers, we’ve posted ranges in our AC servicing cost guide for Dubai so you know what to expect before booking.
Smart thermostat moves (for renters and owners)
- Programs that match your life. Weekday vs weekend, daytime vs sleep.
- Geofencing if available. Some thermostats pre-cool when you’re on the way home.
- Don’t fight the thermostat. If it’s in direct sun or near the kitchen, it will overcool. Shield from sun; avoid heat sources.
DEWA also recommends using programmable or smart thermostats to better control room temperature and AC operation time, simple tech that reduces consumption in our climate. DEWA
Apartment vs villa: small differences, big savings
In apartments
- Focus on infiltration. Hallway doors and bathroom vents often leak warm, humid air.
- Bedrooms first. If the whole flat is on one thermostat, use fans and keep bedroom doors mostly closed when cooling that room at night.
- District cooling? Many towers use chilled water (Empower, etc.). The 24°C rule of thumb still pays off: higher set point, less runtime. Local campaigns urging 24°C have run for years for exactly this reason. Cooling Post
In villas
- Outdoor unit clearance. Keep 60 - 90 cm free around condensers; cut back plants and remove storage boxes.
- Attic/roof heat. Radiant heat can overwhelm upstairs rooms. Add shading films, heavy curtains, or roof insulation where possible.
- Zoning helps. If you can isolate floors, you can cool only where life is happening.
Red flags that burn money
- Short cycling (starts/stops every few minutes): often a control or airflow issue.
- Ice on the indoor unit: airflow or refrigerant problem.
- Musty or damp feel at “okay” temperatures: drainage or humidity management is off.
- Thermostat says 24°C but you feel warm: dirty coils, low gas, or a bad temperature sensor.
Spot any of these? It’s worth a pro inspection. You’ll pay either way - once on maintenance, or every month on your DEWA bill.
Realistic expectations (and a simple experiment)
- Try the 24 - 26°C window for two weeks, with fans to boost comfort.
- Log your meter reading or use your DEWA app to compare consumption.
- Add one maintenance fix (filters + outdoor unit clearance) during the test.
Most households see measurable kWh reductions when they bump set point by even 1 - 2°C and clean filters. That’s the easy, repeatable win DEWA keeps pointing to. Gulf News
When to call a professional (and what we do differently)
If your AC struggles to hit set point, runs constantly, or your bill jumps without a lifestyle change, get a technician in. A trained eye can solve in an hour what DIY tinkering drags out for weeks.
At HandyLads, our AC service & cleaning in Dubai and Sharjah includes deep coil cleaning, refrigerant checks, electrical testing, and drainage fixes - a full tune-up that restores cooling and trims runtime. If it’s urgent, we handle same-day jobs across most neighborhoods.
HandyLads, on your side
You don’t need to become an HVAC expert. A few habits, a sane set point, and seasonal maintenance can meaningfully lower your DEWA bill while keeping your home comfortable. When you want it off your plate, tap us for fast, reliable help.
Ready to lower your bill the painless way? Book AC service & cleaning or call us via the Contact page. We cover Dubai & Sharjah, seven days a week.
P.S. A quick sanity check
Small, steady changes beat heroic one-offs. If you choose just two from this list: raise to 24 - 25°C and clean filters monthly, you’ll likely see the first nudge down on your next DEWA bill. If not, we’ll help you find the hidden culprit.
FAQs
Start at 24°C and pair it with a ceiling or pedestal fan. Many households can then move to 25 - 26°C and stay comfortable, especially at night. DEWA highlights 24°C as the efficient baseline for homes here.
Twice a year works for most homes (pre-summer and pre-winter). If you live dusty or near construction, quarterly checks may pay for themselves.
If you’re out for several hours, yes, either turn it off or set a higher “away” temperature. Use your thermostat’s schedule so you’re not cooling an empty home.
Common culprits: dirty coils, clogged filters, low refrigerant, or a weak capacitor. Each one increases runtime (and your bill). A diagnostic visit will pinpoint the cause.
Plenty: clean filters, add draft strips, use fans, close curtains mid-day, and keep the outdoor unit area clear. For coil cleaning or refrigerant checks, ask your landlord or book a service.