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U Sin Air-conditioning Pte Ltd

Updated 2026-09-15 · 2,661 reviewed · 598 listed · Scored from 183 Google reviews · How we rank ›

4.8(183) 87 composite score See reviews on Google ✓ Google-verified
Aircon Servicing & RepairGas Top-Up & Chemical CleaningAircon InstallationHDB & Condo Aircon Specialist
U Sin Air-conditioning Pte Ltd
Location
Woodlands, Singapore
Services
Aircon Servicing & Repair, Gas Top-Up & Chemical Cleaning, Aircon Installation
Reviews
183
Best for
HDB and condo owners needing installation or regular servicing from a transparent, named technician.

Business data from Google Business Profile, checked 2026-09-15.

What do recent reviews say?

U Sin delivers reliable air-con work across servicing, installation, and chemical wash. Reviewers consistently praise punctuality, professional technicians by name (Sanny, Raja, Edmund), and clean workmanship especially on trunking. One complaint: a technician vacuumed rather than removed a blower during a $35 service; the firm offered a refund but response was slow.

Strong suits are patience during long projects, transparent pricing with no unnecessary add-ons, and hands-on coordination from office staff. Installations span HDB flats to full-home systems. Most reviewers return for maintenance after installation, signalling trust in both workmanship and ongoing care.

Praised for
  • punctual and professional technicians
  • thorough chemical wash and cleaning
  • named staff (Sanny, Raja, Edmund, Ah Wen, Iskandar) praised for skill and patience
  • honest, no unnecessary upselling
  • neat trunking and installation workmanship
  • responsive customer service and coordination
Watch-outs
  • blower not removed during servicing, only vacuumed
  • delayed response to complaints (Friday to Monday)
  • poor communication about service limitations
punctualresponsivefair-pricingskilled-techniciansclean-workmanshiphonest-quotesprofessional-servicegood-after-sales-support
Best for: HDB and condo owners needing installation or regular servicing from a transparent, named technician.
Think twice if: If you need a deep blower clean during servicing, confirm the technician will remove and wash it, not just vacuum.

What are they good at?

  • Named technicians (Sanny, Raja, Edmund, Ah Wen, Iskandar) consistently praised for skill and patience
  • Transparent pricing and no hard-sell of add-ons
  • Neat trunking and installation finish
  • Long project continuity (two-year deposit example shows retention and reliability)

Worth knowing

  • Sanny (coordinator/salesperson) praised for patience over two-year project delay and technical knowledge
  • Raja, Edmund, Ah Wen, and Iskandar named by reviewers for installation and service work
  • Installations completed in one day for multi-unit jobs (5 units and 2 condensers cited)
  • Trunking aesthetics and detail work (door frame patching, drainage pipe protection) noted
  • $35 per unit servicing mentioned
  • WhatsApp booking available

What reviews say by service

Aircon Servicing & Repair
Professional and efficient; one case of incomplete blower cleaning at $35 service handled with goodwill refund.
Gas Top-Up & Chemical Cleaning
Highly praised for thorough chemical wash removing odours; no complaints.
Aircon Installation
Neat, detailed workmanship on trunking and indoor/outdoor runs; installations complete in full days; strong follow-up engagement for maintenance.
HDB & Condo Aircon Specialist
Trusted for multi-room HDB and condo installs; advice on system choice and electrical point additions valued.

How it compares

  • Rated 4.8 against a 4.52 average across the 411 aircon servicing & repair businesses listed here.
  • Has more Google reviews than 87% of the businesses in this directory.

How we scored this

How We Rank
Star rating 84
Review volume 98
Review recency 100
Review sentiment 69
Profile completeness 100
Verification 30

Rating breakdown

5
165
4
8
3
2
2
2
1
6

FAQ

How long does a multi-unit installation take?
One reviewer had 5 air-con units and 2 condensers installed in a single full day with a large coordinated team.
Do they charge extra for design advice or trunking cosmetics?
No hard-sell of add-ons reported. Technicians suggest practical improvements (e.g. neater trunking routing) as part of service; transparent pricing.
Can I book servicing online?
WhatsApp booking is available and described as easy by reviewers.

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Last updated 2026-09-15