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Commercestar Engineering

Updated 2026-08-11 · 2,604 reviewed · 600 listed · Scored from 173 Google reviews · How we rank ›

4.7(173) 85 composite score See reviews on Google ✓ Google-verified Publishes prices
Aircon Maintenance ContractsAircon Installation
Commercestar Engineering
Services
Aircon Maintenance Contracts, Aircon Installation
Reviews
173

What recent reviews say

Customers experience smooth, transparent transactions from quote to installation. Technicians arrive on time, explain their work clearly, and leave work areas spotless. Staff including project manager Raymond and installation crews like Tawhid and Najib are praised for professionalism and willingness to solve problems on the spot. Piping and insulation materials are specified with precision, and site surveys happen before installation. One customer had a piping condensation leak dismissed as a product fault; a rework company later found the installation faulty, though the business's follow-up servicing also missed the issue.

Strong point is responsiveness and team coordination across sales, installation, and servicing. Multiple customers note transparent pricing with no hidden charges, and the team handles complex jobs like second-compressor HDB installs that others declined. Chemical wash and thorough fan-coil servicing draw repeated praise. A maintenance contract renewal rate is implied by repeat bookings. The single serious complaint hinges on whether staff responsibility for poor diagnosis contributed to a costly rework.

Praised for
  • professional installation and servicing
  • responsive and patient communication
  • quality workmanship and attention to detail
  • thorough cleaning and materialsused
Watch-outs
  • poor diagnosis of piping condensation issue
  • inadequate follow-up on recurring problems
professional-servicepunctualresponsiveskilled-techniciansclean-workmanshiptidy-installationhonest-quotesgood-after-sales-support
Best for: Customers buying first-time aircon or upgrading systems in HDB and condo units who value transparent pricing and detailed pre-installation surveys.
Think twice if: Customers relying on post-installation technical support for condensation or piping issues should clarify diagnostics upfront, as one customer faced a delayed resolution of a faulty piping installation.

Strengths

  • BCA-certified technicians with material transparency
  • responsive WhatsApp coordination from sales to installation
  • thorough site survey and bespoke system planning
  • honest quotation with no hidden charges

Worth knowing

  • Project manager Raymond personally conducts site surveys and coordinates with interior designers on unit placement and piping routing
  • Installation crews named in reviews include Tawhid, Najib, Shaha, Rony, Abu, and new Shahin; team coordination emphasizes knowing each member's role
  • BCA-certified technicians; K-flex Titan Class 0 and 21 SWG 0.81mm DSP copper piping specified for high humidity resilience
  • Two free servicing appointments included with installation purchases
  • Chemical wash crew covers furniture with plastic and cleans work area post-job
  • System 3 full installation typically takes 7.5 hours; they do not rush jobs
  • Service recovery within 30 minutes documented for one post-chemical-wash leak

What reviews say by service

Aircon Installation
Professional site surveys and transparent planning; neat execution with attention to detail; material quality emphasised; customers report no hidden charges.
Aircon Maintenance Contracts
Thorough servicing including roller-fan washing and coil cleaning; timely pre-appointment notifications; responsive service recovery on rare issues.
Gas Top-Up & Chemical Cleaning
Meticulous chemical wash with furniture protection and area cleanup; fast response to post-wash issues.

How it compares

  • Rated 4.7 against a 4.68 average across the 215 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 68
Profile completeness 100
Verification 30

Rating breakdown

5
154
4
6
3
0
2
2
1
11

Common questions

Do you include servicing with installation?
The business states two free servicing appointments are included with installation purchases.
Can you install a second compressor in an HDB unit?
Yes. Reviews indicate the team has successfully installed second-compressor setups in HDB units after other companies declined, though approval and feasibility depend on your specific unit.
What materials do you use for piping?
The business specifies K-flex Titan Class 0 insulation and 21 SWG 0.81mm DSP copper piping to handle Singapore's humidity and heat.
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Last updated 2026-08-11