Will they tell me if I don't need a service?

Yes. One reviewer noted they recommended chemical wash for only 1 of 3 units and standard service for the other two, saving money.

What makes them different from other gas top-up providers?

They investigate why you need repeated top-ups. One reviewer found a loose compressor connection leaking gas, not a fault in the system.

LIAN MENG CONSTRUCTION & ENGINEERING PTE. LTD.

Updated 2026-11-15 · 2,731 reviewed · 637 listed · Scored from 24 Google reviews · How we rank ›

4.8(24) 62 low data composite score See reviews on Google ✓ Google-verified

Gas Top-Up & Chemical CleaningAircon Servicing & RepairAircon Installation

LIAN MENG CONSTRUCTION & ENGINEERING PTE. LTD.

Location: Ang Mo Kio, Singapore
Services: Gas Top-Up & Chemical Cleaning, Aircon Servicing & Repair, Aircon Installation
Reviews: 24
Ranking: #203 in Gas Top-Up & Chemical Cleaning
Best for: customers frustrated by repeated gas top-ups wanting a diagnostic review

Business data from Google Business Profile, checked 2026-11-15.

What do recent reviews say?

Lian Meng delivers responsive, detail-focused gas-top-up and installation work at fair rates, with technicians who diagnose root causes rather than chase repeat top-ups. One reviewer reported a noise issue introduced during chemical cleaning and felt pressured on replacement parts.

Based on limited recent reviews, so treat this as low-confidence.

Praised for

professional technicians
honest diagnostics
quick response
reasonable pricing
thorough cleaning

Watch-outs

noise issue after service
upselling pressure

punctualresponsivefair-pricingskilled-techniciansclean-workmanshiphonest-quotesprofessional-service

Best for: customers frustrated by repeated gas top-ups wanting a diagnostic review

Think twice if: one reviewer reported noise damage post-service; confirm warranty on workmanship before booking

What are they good at?

finds root causes of leaks and repeated top-ups
removes compressor cylinders for deeper cleaning
will skip unnecessary services to save costs
takes time to explain issues clearly

Worth knowing

Technicians Sri, Tiran, and Wendy named in positive reviews
removes cylinder from aircon for deeper chemical cleaning
follow-up check mentioned in at least one review
handled complex installation in condo with 2m+ ceiling height and power constraints

What reviews say by service

Gas Top-Up & Chemical Cleaning: Found hidden compressor leak causing repeated top-ups; chemical cleaning removes gunk others miss; one noise complaint post-service.
Aircon Installation: Installed Mitsubishi system at reasonable price; handled difficult site constraints; solid workmanship.

How it compares

Rated 4.8 against a 4.6 average across the 316 gas top-up & chemical cleaning businesses listed here.
Has more Google reviews than 64% of the businesses in this directory.

How we scored this

How We Rank

Star rating 76

Review volume 61

Review recency 0

Review sentiment 60

Profile completeness 100

Verification 30

Rating breakdown

FAQ

Will they tell me if I don't need a service?: Yes. One reviewer noted they recommended chemical wash for only 1 of 3 units and standard service for the other two, saving money.
What makes them different from other gas top-up providers?: They investigate why you need repeated top-ups. One reviewer found a loose compressor connection leaking gas, not a fault in the system.

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