Duct Sealing Service in Singapore
Ducts are the core of your building’s ventilation system, distributing cooled, heated, or filtered air throughout every space. But over time, joints loosen, seals deteriorate, and microscopic gaps form. These leaks force your system to work harder while delivering less, driving up operating costs and compromising indoor comfort.
Duct sealing restores your system’s efficiency by locating, isolating, and sealing these leaks, ensuring proper airflow, balanced pressure, and improved long-term performance.
At Delta Sirius, we specialise in advanced duct sealing methods, including aerosol duct sealing, to help commercial and industrial buildings achieve measurable improvements in energy efficiency, air quality, and system reliability.
What is Duct Sealing?
Duct sealing involves identifying and fixing these leaks to restore proper pressure, balance, and airflow. For Singapore’s buildings, many of which operate under high humidity and consistent air-conditioning loads – sealing isn’t optional. It’s essential.
- Customized duct sealing for Singapore’s tropical environment
- Skilled, certified technicians with diagnostic expertise
- Durable, eco-friendly sealing materials
- Fast service with minimal interruption
- Significant improvements in system efficiency
- Better airflow, better comfort, lower energy bills
Why Duct Leakage
Is a Bigger Problem than You Think?
Poorly sealed ductwork is one of the most common and costly inefficiencies in modern buildings. Studies show that up to 30% of conditioned air can be lost through cracks and gaps in HVAC ducts, forcing systems to work harder while delivering less comfort. Duct leakage may cause the following issues:
Traditional manual sealing often fails to reach hidden or inaccessible areas. Aerosol duct sealing overcomes these limitations—sealing leaks from the inside out with patented precision.
Our Duct Sealing Method
Source from https://aeroseal.com/how-aeroseal-duct/
Aerosol Duct Sealing
Aerosol duct sealing is the most advanced, effective, and non-intrusive solution to fix these issues. Instead of manually sealing ducts from the outside, this method seals leaks from the inside using pressurised aerosol particles that locate and close gaps automatically.
It is an innovative technology that uses a mist of microscopic sealing particles to identify and seal air leaks inside your ductwork. The particles travel through the ventilation system, locate leakage points, and bond to close gaps.
Duct Seal Compounds
Most aerosol duct seal compounds are made from water-based acrylic polymers with stabilising and adhesion-enhancing additives, and are free from toxic adhesives, solvents, or harmful chemicals.
These aerosol sealing compounds is ideal for commercial buildings because it is safe for occupied environments, reaches hidden leaks, leaves no residue, and creates a strong, long-lasting seal without the need for mechanical repairs.
Key Benefits of Aerosol Duct Sealing
Partnering with Delta Sirius for aerosol duct sealing gives your facility an immediate return in comfort, air quality, and cost savings.
Up to 95% Reduction in Duct Leakage
The aeroseal system consistently seals 90–95% of duct leakage—restoring lost airflow and maximizing HVAC performance.
20–30% Energy Savings
Sealing your ducts reduces the load on your HVAC system, often cutting energy usage by 20% or more—lowering monthly bills and extending equipment life.
Healthier Indoor Air Quality
Leaky ducts can draw in contaminants from ceilings, crawlspaces, and basements. Our sealing process helps eliminate dust, mold spores, and allergens circulating through the air.
Even Room Temperatures
Eliminate hot or cold spots across large spaces. Sealed ducts ensure that every zone receives consistent, balanced airflow.
Fast and Non-Invasive
No need to open walls or disrupt daily operations. The system works from the inside of the duct and completes in just a few hours.
Backed by Long-Term Results
Our sealing process uses a safe, water-based polymer tested to last over 10 years. It’s backed by laboratory data and real-world durability.
Who Do We Serve?
Here are the key types of properties that benefit most from our duct sealing services in Singapore:
Residential
condominiums and landed properties with aging or inefficient duct systems.
Commercial Offices & Retail
From small shops to large office floors, we help improve airflow and reduce energy costs.
F&B Kitchens & Processing Facilities
Reliable duct sealing helps control heat, grease, and indoor air contaminants.
Healthcare Clinics & Labs
We ensure clean, controlled air environments where hygiene and safety are critical.
Warehouses & Light Industrial
For large-scale operations where ventilation impacts worker comfort and equipment longevity.
Campuses & Public Institutions
Better airflow supports learning environments, reduces allergens, and keeps systems running smoothly.
Why Choose Delta Sirius?
Here’s what makes us a trusted name for duct sealing in Singapore:
30+ Years of Experience
We’ve handled thousands of systems – from homes to complex industrial sites. That depth is shown in our work.
Skilled, Certified Technicians
Our team is trained in the latest HVAC diagnostic and sealing methods.
Singapore-Focused Solutions
We know how local buildings are built and what local climates demand.
Green, Sustainable Practices
All our sealing materials are safe, non-toxic, and in line with Singapore’s green building standards.
Efficient Turnaround
Most jobs are completed within a day or two. We get in, fix the issue, and leave your space better than before.
Honest, Transparent Pricing
No upsells. No hidden fees. Just clear, fair service quotes based on your actual needs.
Book Your Service Today
Stop hidden air leaks and optimise your ventilation system with confidence. Delta Sirius offers advanced, high-performance duct sealing in Singapore, improving comfort, boosting efficiency, and delivering real cost savings you can measure.
Frequently Asked Questions
A: Costs vary depending on the size of your system, the number of leaks, and accessibility. On average, residential jobs start from around $300, while commercial projects are quoted after inspection.
A: For most homes or small offices, the job takes 3 to 5 hours. Larger commercial or industrial systems may take a full day or two, depending on layout and complexity.
A: We recommend an inspection every 3 to 5 years. If your building is older or has undergone renovation, it’s smart to check sooner. Sealing typically holds up well unless disturbed.
A: Inconsistent cooling, whistling noises, visible dust around vents, or higher energy bills may all point to duct leakage. A drop in airflow pressure is also a common indicator.
A: Yes. Sealing prevents moist air from unconditioned spaces like attics or false ceilings from entering the system, which reduces the risk of mold growth and indoor humidity spikes.
A: Absolutely. We check and seal both supply and return sides of the system, ensuring that conditioned air is delivered efficiently and that contaminated air isn’t pulled in through gaps.
A: We use tools like smoke pencils, manometers, and thermal imaging to detect leaks. After sealing, we run post-tests to confirm improved pressure and airflow consistency across the zones.
A: Yes. Even new systems can have poor joints or rushed installations. We often find leaks in brand-new ducts due to rushed construction timelines or improper sealing at the factory.
A: No. In fact, proper sealing may help protect your system by reducing wear and tear. We work around existing setups and never alter or tamper with mechanical components.
A: Yes. We regularly work on ventilation duct systems in malls, clinics, F&B outlets, and warehouses. Our team is equipped to handle both simple and complex projects across Singapore.