Assessing Workmanship in Your Aircon Installation

Assessing Workmanship in Your Aircon Installation

Assessing Workmanship in Your Aircon Installation

A well-installed aircon system is just as important as the unit itself. Even the most advanced models can underperform or break down prematurely if installed incorrectly. From ensuring optimal energy efficiency to avoiding costly repairs, proper aircon installation lays the foundation for long-term comfort.

This guide provides homeowners with a clear checklist on how to assess an installer's workmanship — before, during, and after installation. Whether you’re upgrading your AC system or have just made an aircon purchase and installation plan, these tips will help you feel more confident throughout the process.

What to Do Before Aircon Installation

Before installation day, it’s important to take a few preparatory steps to ensure a smooth experience:

  • Verify the installer’s credentials: Always choose a reputable company that’s licensed for aircon installation in Singapore. Check for BCA registration or choose a HDB licensed contractor and ensure the technicians are certified.
  • Confirm scope of work in writing: Before any work begins, request a detailed breakdown of the job — including the aircon system type, unit placement, pipe routing, and total cost. This avoids last-minute surprises.
  • Clear the installation area: Move furniture or fragile items from the intended installation zones. Make sure installers have easy access to the aircon ledge, electrical points, and drainage outlets.

What to Look Out For During Installation Day

On installation day, pay attention to the following signs of professionalism and readiness:

  • Punctuality and professionalism: Reliable technicians should arrive on time, be in uniform or properly identified, and treat your home with respect.
  • Proper tools and safety equipment: Professional teams should carry appropriate tools for tasks such as drilling, vacuuming, and pressure testing — as well as safety harnesses if work on the aircon ledge is required.
  • Pre-installation checks: The team should confirm installation details with you, including unit positions and BTU sizing. They should also inspect your power supply and ensure it’s suitable for your chosen setup.

How to Assess Your Aircon Installer's Workmanship

Good workmanship goes beyond simply completing the job — it’s about doing it thoroughly, safely, and efficiently. While quality should never be rushed, it's worth understanding how long aircon installation should take. 

For example, for a standard HDB or condo setup, a professional team typically completes the process within 4 to 8 hours, depending on the unit type and installation complexity. Taking too long — or rushing through critical steps — can both be warning signs of subpar service.

Here’s what to look out for once the installation begins:

  • Piping & insulation: Copper piping should be neatly arranged, properly clipped, and fully insulated along its length. Incomplete or sloppy insulation can cause condensation issues, water damage, or energy loss.
  • Drainage system: Ensure that the drainage pipe slopes downward to allow smooth water discharge. It should be firmly secured and free of upward bends or kinks that might lead to future blockages or leaks.
  • Unit placement and levelling: Indoor and outdoor units must be mounted level and securely. Poor placement can result in excess vibration, noise, and premature wear on components like the compressor.

What to Do Post-Installation: Final Checks and Handover

Before the team leaves, be sure to:

  • Test all modes of operation: Run your aircon system on the different modes to ensure proper functionality. Check for consistent airflow and cooling.
  • Inspect the workspace: A clean work area reflects attention to detail. All dust, debris, packaging, and tools should be removed once the job is done.
  • Collect documentation: Ensure you receive all warranty cards for your units, installation warranty details, and a completed service or installation report for your records.

Why Professional Installation Matters for Your Aircon


Air conditioning is a long-term investment. Proper aircon installation ensures that your system runs efficiently, lasts longer, and avoids issues that might lead to expensive repairs later. Poor installation, on the other hand, can result in leaks, noise, poor cooling performance, and unnecessary wear on your system.

At 81 Aircon, we believe in doing the job right the first time. Our team of experienced, BCA-certified technicians brings precision and care to every project — whether it’s a single-room setup or a full aircon purchase and installation package. With transparent communication and a focus on customer satisfaction, we’re here to make your aircon installation seamless and stress-free.

Reach out to us for your home AC installation today!

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