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Can aircon installation damage walls or ceiling?

Author: Brindha SEO
by Brindha SEO
Posted: Aug 18, 2025

Aircon Installation

When it comes to installing a new air conditioning system, most homeowners are focused on choosing the right model, ensuring energy efficiency, and enjoying a cool, comfortable indoor environment. However, one concern that sometimes comes up is: "Will aircon installation damage my walls or ceiling?"

At LetsCool Aircon and Services, with more than years of experience serving Singapore’s residential, commercial, and industrial spaces, we understand this worry. After all, an aircon installation often requires drilling, mounting, and running pipes or cables – and no one wants to end up with cracked walls, chipped paint, or messy ceilings.

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Mitsubishi Aircon Installation

Midea Aircon Installation

Panasonic Aircon Installation

The good news is that with proper planning, skilled workmanship, and the right tools, aircon installation can be done with minimal to no visible damage. Let’s explore the possible risks, why they happen, and how our team at LetsCool ensures your walls and ceilings remain in great condition.

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Why Aircon Installation Might Affect Walls or Ceilings

When installing a split system or multi-split air conditioner, several physical modifications to your space are usually required. These can include:

  1. Drilling Holes for Piping and Wiring

    • Aircon units require copper pipes, drainage tubing, and electrical cables to connect the indoor and outdoor units. This usually involves drilling a small hole (around 65–80 mm in diameter) through the wall.

  2. Mounting Indoor Units

    • Wall-mounted units need secure brackets fixed to the wall. In some cases, installers may need to reinforce weak spots to support the unit’s weight.

  3. False Ceiling Work

    • For ceiling cassette units or ducted systems, installers may need to cut or adjust portions of a false ceiling to fit the aircon.

  4. Routing Drainage Lines

    • The condensate drain must slope downward to allow water to flow out properly. Sometimes, routing these lines requires minor adjustments to walls or ceilings.

If handled carelessly, these steps could lead to chipped plaster, cracked paint, uneven cuts in ceiling panels, or visible patch marks.

Common Aircon Problems and Solutions:
  • Aircon Not Cold

  • Aircon Water Leakage

  • Aircon Light Blinking?

  • Aircon not working
Common Causes of Wall or Ceiling Damage During Installation

Even a straightforward installation can lead to problems if not done by experienced professionals. Here are the main causes of damage:

  1. Improper Drilling Techniques

    • Using the wrong drill bit or applying too much pressure can cause cracks in concrete or tiles.

  2. Incorrect Placement of Indoor Unit

    • Poor planning might require repositioning the unit mid-installation, leaving unnecessary holes in the wall.

  3. Inadequate Protection During Work

    • Dust, debris, and accidental knocks can damage paint, wallpaper, or ceiling panels.

  4. Poor Sealant Application

    • If the hole between the indoor and outdoor units is not properly sealed, water leakage could cause staining or damage over time.

  5. False Ceiling Misalignment

    • For cassette units, careless cutting of ceiling panels can result in rough edges or visible gaps.

How LetsCool Minimises or Prevents Damage

At LetsCool Aircon and Services, our approach to installation is focused on precision, protection, and care. Here’s how we keep your property safe during the process:

1. Pre-Installation Site Survey

We always begin with a detailed inspection of your space. This helps us:

  • Identify the best location for the indoor and outdoor units.

  • Plan piping routes to minimise drilling and avoid unnecessary wall penetration.

  • Assess wall and ceiling materials to determine the safest drilling method.

2. Use of Proper Tools and Equipment

Our technicians use professional-grade drilling machines, dust collectors, and specialised bits designed for concrete, brick, or tile surfaces. This reduces the risk of cracks and ensures clean, precise holes.

3. Protective Measures During Work

We use drop cloths, protective sheets, and masking tape to safeguard your furniture, flooring, and nearby walls from dust and accidental scratches.

4. Minimal Drilling and Neat Routing

We aim to use the shortest, most efficient piping routes while keeping them concealed where possible. For aesthetic purposes, we can install trunking to hide pipes and cables neatly.

5. Professional False Ceiling Handling

If your installation involves ceiling work, our team ensures accurate measurements and smooth cutting, so panels fit perfectly without leaving gaps or jagged edges.

6. Post-Installation Clean-Up

We leave your home or office tidy after installation, removing dust and debris and wiping down any affected surfaces.

Comprehensive Aircon Services

LetsCool Aircon offers a variety of services to ensure your air conditioning system operates at its best:

  • Aircon General Service: Regular cleaning and maintenance to keep your aircon unit running efficiently.

  • Aircon Chemical Wash: A thorough cleaning using chemicals to remove dirt, grime, and mold from the internal components.

  • Aircon Chemical Overhaul: An intensive cleaning process that includes dismantling and cleaning the aircon unit's components to r

  • store optimal performance.

  • Aircon Steam Cleaning: A hygienic cleaning method that uses steam to sanitize and remove stubborn dirt and bacteria.

  • Aircon Gas Top-up: Ensuring your air conditioning unit has the correct amount of refrigerant for optimal cooling.

  • AC Repair and Maintenance: Troubleshooting and fixing any issues to extend the lifespan of your aircon system.

What to Expect if Drilling or Ceiling Work is Required

It’s important to be aware that some level of wall or ceiling modification is inevitable during aircon installation. However, with LetsCool:

  • Any holes created will be neatly sealed with appropriate materials to prevent air or water leakage.

  • If repainting is required for aesthetic purposes, we will inform you beforehand so you can arrange it.

  • For major renovations or false ceiling adjustments, we can coordinate with your contractor to ensure a seamless finish.

How to Prepare Your Home for Aircon Installation

Here are some tips to further minimise the risk of damage:

  1. Clear the Installation Area – Move furniture and fragile items away from walls or ceilings where work will take place.

  2. Discuss Placement in Advance – Confirm unit locations and piping routes with the technician before drilling begins.

  3. Cover Valuables – Use cloths or covers to protect nearby items from dust.

  4. Inform the Installer About Special Materials – If your wall is made of glass, marble, or other delicate materials, let the team know so they can use the right tools.

Why Choosing the Right Installer Matters

Inexperienced or unqualified installers might complete the job faster, but can leave behind visible damage or future problems such as water leakage, poor cooling performance, or uneven mounting.

With LetsCool Aircon and Services, you’re getting:

  • Trained and certified technicians skilled in handling all brands and models.

  • Warranty-backed workmanship for peace of mind.

  • Full support across Singapore for both residential and commercial projects.

  • Mitsubishi, Daikin, Panasonic, Midea, Hitachi, York, Toshiba, Haier, and Sharp

Conclusion

While aircon installation can involve drilling and ceiling adjustments, it should not cause serious or unsightly damage when done by professionals. At LetsCool Aircon and Services, we take every precaution to protect your walls, ceilings, and overall home aesthetics while delivering efficient, reliable cooling solutions.

If you’re planning a new aircon installation in Singapore, trust our experienced team to get the job done neatly, safely, and professionally.

11 Mandai Estate,

#05-15 Eldix,

Singapore 729908

Mail ID: info@letscoolaircon.com.sg

Call: +65 94507178 (or) WhatsApp us: https://wa.me/6594507178

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About the Author

BrindhaSEO is a passionate content writer with a knack for crafting engaging and informative articles. With a background in digital marketing,

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Author: Brindha SEO

Brindha SEO

Member since: Jun 05, 2024
Published articles: 148

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