Fahison
Incomplete duct insulation
High- Cause:
- Gaps in insulation or open joints.
- Impact:
- Condensation and stains on the gypsum.
Stage 6: Electrical, Plumbing & ACHVAC Inspection
HVAC Inspection
Rough-In and Commissioning
Ducts and copper pipes disappear above the gypsum, and any mistake in them shows up as weak cooling or water leaking from the ceiling. We inspect the ducts and services before the gypsum, then run the AC units and inspect them after installation.
From 700 AED
2Inspections: Rough-In & Commissioning
- Specialised Engineers
- Photo Report
- All Emirates
Duct ChecksIllustration
Duct insulationDiffusers
What Is HVAC Inspection?
HVAC and ducts inspection is 2 engineering visits: the first at rough-in, to inspect the ducts, copper pipes and drainage before the gypsum, and the second at final handover, after the AC units are installed and commissioned.
The inspection matters because ducts and services disappear above the gypsum. A poorly insulated duct condenses water and stains the ceiling, drain pipes with incorrect falls leak, and poor distribution leaves rooms hot. Fixing any of this means opening up the gypsum.
Inspections for Air Conditioning
2 inspections in order: ducts and services before the gypsum, then commissioning after installation. You can request each inspection on its own.
Inspection 1 of 2
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Ducts and Services Inspection
When: After the ducts, copper pipes and drainage are installed, and before the gypsum.
Once the gypsum is up, you can't see the ducts, the insulation or the drain falls. We check them while they are still exposed.
Key Items We Inspect
Duct Routes
Duct routes and sizes as per the drawings.
Duct Insulation
Insulation complete with sealed joints and no gaps.
Hanging and Fixing
Ducts and indoor units securely hung.
Drain Pipes
Fall and direction of AC condensate drain pipes.
Copper Pipes
Copper pipe insulation and sound joints.
Supply & Return Grilles
Locations of supply and return air grilles.
Most Common Problems at This Stage
Incorrect drain falls
High- Cause:
- Falls not set during installation.
- Impact:
- Water leaking from the ceiling.
Crushed or kinked ducts
Medium- Cause:
- Installed without considering the route.
- Impact:
- Weak airflow in some rooms.
Inspection 2 of 2
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Final Handover and AC Commissioning
When: After the AC units are installed and connected.
We run the AC units and confirm that every room cools, with no leaks and no noise, before you take handover from the contractor.
Key Items We Inspect
Cooling
Measuring the temperature of air coming out of the supply grilles.
Air Distribution
Air reaches every room evenly.
Drainage
AC condensate drains without leaks.
Noise and Vibration
No disturbing noise or vibration.
Thermostat
Thermostat works and each zone can be controlled.
Outdoor Units
Outdoor units are secured and protected.
Most Common Problems at This Stage
Rooms that don't cool
High- Cause:
- Unbalanced duct distribution or insufficient capacity.
- Impact:
- Hot rooms and a higher bill.
Water leaking from the unit
High- Cause:
- Blocked drain or incorrect falls.
- Impact:
- Stains and damage to the gypsum.
Noise and vibration
Medium- Cause:
- Poorly secured units.
- Impact:
- Disturbance and wear over time.
Equipment We Use
From the Fahison equipment featured on our home page.
ThermometerTape Measure
Tips Before the Inspection
To help you get more out of the visit.
Do
- Request the duct inspection before the gypsum is installed.
- Request the final handover in hot weather if you can.
- Make sure there are access panels in the gypsum at the units.
Avoid
- Installing the gypsum before the ducts are inspected.
- Running the AC units while construction dust is still around.
- Closing the gypsum without access panels.
Frequently Asked Questions
Common questions about HVAC Inspection.
Why are there 2 AC inspections?
Because the ducts and services disappear above the gypsum, and commissioning confirms cooling after installation. Each has its own timing.
When should I request the duct inspection?
After the ducts, copper pipes and drainage are installed, and before the gypsum.
How much does an HVAC and ducts inspection cost?
From 700 AED.
Inspections in the Same Stage
Electrical, Plumbing & AC.
Ductwork Finished?
Book the inspection before the gypsum, and we'll arrange the visit time with you.