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Commercestar Engineering

Updated 2026-09-15 · 2,661 reviewed · 598 listed · Scored from 175 Google reviews · How we rank ›

4.7(175) 86 composite score See reviews on Google ✓ Google-verified Publishes prices
Aircon Maintenance ContractsAircon InstallationAircon Servicing & RepairGas Top-Up & Chemical CleaningCommercial & Industrial AirconHDB & Condo Aircon Specialist
Commercestar Engineering
Location
Yishun, Singapore
Services
Aircon Maintenance Contracts, Aircon Installation, Aircon Servicing & Repair
Reviews
175
Ranking
#80 in Aircon Maintenance Contracts
Best for
Homeowners seeking condo and HDB aircon installation with transparent quotes and hands-on project management from named technicians.

Business data from Google Business Profile, checked 2026-09-15. Facts from the business's own website were fetched 2026-08-11.

What do recent reviews say?

Reviewers consistently praise Commercestar's installation quality and professionalism. Work is neat and tidy, staff arrive on time, quotations are exact, and technicians explain the process clearly. Named staff like Raymond, Shaha, Rony, and Tawhid are mentioned often and described as patient and knowledgeable.

One significant complaint involves a piping condensation issue in a Samsung system that staff misdiagnosed, telling the customer nothing could be done when the problem later required costly re-piping. Across two servicing visits, different employees also brushed off the concern. Despite the strong overall pattern of positive feedback, this case highlights a gap in technical thoroughness on at least one complex fault.

Praised for
  • responsive communication and honest advice
  • clean, neat workmanship and attention to detail
  • friendly, professional, knowledgeable technicians
  • transparent pricing with no hidden charges
  • reliable service with follow-up care
Watch-outs
  • misdiagnosed piping condensation issue
  • dismissed recurring problem across multiple visits
responsiveskilled-techniciansclean-workmanshiphonest-quotespunctualprofessional-servicetidy-installationgood-after-sales-supportunresolved-issue
Best for: Homeowners seeking condo and HDB aircon installation with transparent quotes and hands-on project management from named technicians.
Think twice if: Technical diagnosis on condensation or complex faults may not always be reliable; consider a second opinion if staff dismiss recurring issues.

What are they good at?

  • Transparent pricing with no hidden charges
  • Named experienced technicians (Raymond, Shaha, Tawhid, Alam, Babu, Najib)
  • Thorough site survey and placement planning before installation
  • Neat workmanship with floor protection and post-job cleanup

Worth knowing

  • Named technicians frequently praised: Raymond (project manager, sales), Shaha, Rony, Tawhid, Alam, Babu, Najib
  • Typical installation time noted as 7.5 hours for full System 3
  • Uses high-grade materials: K-flex titan Class 0 insulation, 21 swg 0.81mm DSP copper pipes
  • Covers work areas with plastic sheets and floor protection
  • Offers free upgraded materials on some promotions
  • Site survey and measurements done prior to installation
  • Assist with interior design coordination and old piping removal
  • BCA certification for technicians

What reviews say by service

Aircon Installation
Installation quality praised as neat and professional; technicians take time with placement planning and explain systems clearly. One System 3 install completed in 7.5 hours.
Aircon Servicing & Repair
Thorough fan coil and filter washing reported; technicians use vacuum on coils. One complaint: condensation issue misdiagnosed and dismissed across two visits.
Aircon Maintenance Contracts
Responsive company with good follow-up; free servicing mentioned as part of promotions.
Gas Top-Up & Chemical Cleaning
Chemical cleaning praised for thoroughness and attention to furniture protection and cleanup.
Commercial & Industrial Aircon
Experience with second compressor installation in HDB noted; staff knowledgeable and worked full day without slacking.
HDB & Condo Aircon Specialist
Multiple condo and BTO installations mentioned; staff help liaise with interior designers on piping routes and unit placement.

How it compares

  • Rated 4.7 against a 4.62 average across the 250 aircon maintenance contracts businesses listed here.
  • Has more Google reviews than 85% of the businesses in this directory.

How we scored this

How We Rank
Star rating 78
Review volume 97
Review recency 100
Review sentiment 70
Profile completeness 100
Verification 30

Rating breakdown

5
156
4
6
3
0
2
2
1
11

FAQ

How long does a typical aircon installation take?
One System 3 installation took about 7.5 hours. A second compressor setup took from 9:40 AM to 7 PM with a lunch break.
Do they offer free servicing after installation?
Yes, free servicing is mentioned in some of their promotions (details vary by deal).
What materials do they use?
Their website claims they use high-grade materials including K-flex titan Class 0 insulation and 21 swg 0.81mm DSP copper pipes, and they offer free upgraded insulation materials on some Shopee/Lazada deals.
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Last updated 2026-09-15