OF Air Service - ล้างแอร์ ซ่อมแอร์ ติดตั้งแอร์ โยกย้ายแอร์

Home Services · Wangthonglang

80/28, 60 Lat Phrao 51 Alley, Road, Wangthonglang, Bangkok 10310

Rated 4.7/5 from 204 reviews.

Data checked on 1 June 2026.

The 90-day repair warranty is the longest we have tracked among Bangkok's independent AC service operators. Most residential jobs book by phone or Line within 24 hours. If uptime matters more than rock-bottom pricing, the credentials and warranty terms justify the call.

You call 02-933-6200 or Line @OFair, describe what is not working, and a Department of Labor-certified technician arrives at the agreed slot with tools and a uniform. OF Air Service operates from a Lat Phrao 51 base and covers Bangkok plus six surrounding provinces: Samut Prakan, Nonthaburi, Pathum Thani, Samut Sakhon, Nakhon Pathom, and Chachoengsao.

The company has serviced more than 50,000 air conditioning units since launching 17 years ago. Every technician undergoes criminal background screening before hire. Cleaning work carries a 30-day warranty; repair jobs get 90 days. If cooling performance drops within that window, the callback is free.

Services span wall-mounted, hanging, floor-standing cabinet, four-directional, and ceiling cassette units. The cleaning menu runs from standard single-unit jobs to annual maintenance contracts. Repairs cover refrigerant top-ups, compressor diagnostics, and electrical faults. Installation and unit relocation are also on the roster, though most of the daily volume is cleaning and repair.

The parent company (Outsourcing Factory, tax ID 0105552055267) also runs messenger and warehouse operations, so the dispatch infrastructure is built for volume and punctuality. Street parking and a small lot are available at the Lat Phrao office if you need to drop off a portable unit, though most work happens on-site.

Bookings go through the phone line or Line chat. Hours are 9 AM to 5 PM every day. The technician brings protective sheeting to contain water spray during coil cleaning, and the job ends with a function test before sign-off.