Home / Duct Insulation & Sealing
Specialist ServiceUninsulated or poorly sealed ductwork loses cooling into the ceiling void and often sweats condensation onto the surrounding structure, which is a common hidden cause of ceiling stains and mould. HILLS AC Services re-insulates and seals duct joints and runs to stop both problems at the source.
Every price is confirmed in writing after an inspection, before any work begins.
Damaged or missing fibreglass/foam insulation replaced along the duct run.
Supply, positioning, refrigerant or chilled-water piping, electrical connection and commissioning, coordinated with whoever else is working on the ceiling. We survey before quoting because unit sizing and pipe runs are where installations go wrong, and an undersized system cannot be corrected afterwards without replacing it. Commissioning readings are recorded and handed over, so you have evidence the system performs to specification on day one.
Mastic sealing of duct joints to stop conditioned air leaking into the ceiling void.
Duct losses are invisible and expensive: cooled air escaping into a ceiling void is paid for and never delivered. We inspect the runs, seal failed joints, and replace insulation that has been compressed or damaged by other trades working above the ceiling. Where a room has never cooled properly, this is very often the cause rather than the unit itself.
Camera inspection to find where condensation or mould is originating before sealing work.
We inspect before quoting, and the written price is what you pay. The work is documented with before-and-after photographs sent to your WhatsApp the same day, and a certificate where one is needed for inspection. Where a job falls outside what we do, we tell you rather than taking it on.
Usually condensation forming on an uninsulated or poorly sealed section of ductwork above the ceiling, which then drips or seeps through the ceiling board. Re-insulating and sealing the affected section is the fix, not just repainting the ceiling.
Insulation type and thickness are specified in Dubai's building and fire codes for certain building types; we can advise what applies to your property during the site survey.
A typical apartment takes two to four hours and a villa most of a working day, depending on the number of vents and how the ductwork is laid out. We confirm the duration at the inspection so you can plan access.
No. We seal the vents, sheet the floors and cover furniture before starting, and the debris is drawn out through a HEPA-filtered vacuum rather than pushed into the room. A domestic vacuum returns fine particulate straight back into the air, which is why we do not use one.
Every 12 to 18 months for a typical home. Sooner if you are near active construction, have pets, or anyone in the household has asthma or allergies. Restaurants and clinics need it considerably more often.
See the complete ducting fabrication & installation range this specialist service is part of.
Supply, positioning, refrigerant or chilled-water piping, electrical connection and commissioning, coordinated with whoever else is working on the ceiling. We survey before quoting because unit sizing and pipe runs are where installations go wrong, and an undersized system cannot be corrected afterwards without replacing it. Commissioning readings are recorded and handed over, so you have evidence the system performs to specification on day one.
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We inspect before quoting, and the written price is what you pay. The work is documented with before-and-after photographs sent to your WhatsApp the same day, and a certificate where one is needed for inspection. Where a job falls outside what we do, we tell you rather than taking it on.
Browse all commercial AC and facilities services.
We inspect before quoting, and the written price is what you pay. The work is documented with before-and-after photographs sent to your WhatsApp the same day, and a certificate where one is needed for inspection. Where a job falls outside what we do, we tell you rather than taking it on.
156 Dubai communities, each with its own page.
Tell us the property and we will confirm a fixed written price after an inspection.
Dubai's conditions are unusually hard on air distribution. Fine desert sand and construction dust load a system in weeks rather than months, and coastal humidity keeps the interior of the ductwork damp for most of the year. That combination is what allows mould, bacteria and dust mites to establish inside a duct network, and every time the unit cycles it circulates into the room people are breathing in.
The consequence is rarely dramatic. It shows up as morning congestion that clears when you leave the house, a musty smell in the first minute after start-up, and a cooling system that runs longer each year for the same result. By the time it is obvious, the household has usually been paying for it on the DEWA bill for a considerable time.
We inspect before quoting, and the written price we give is the price you pay. No revision once the work has started, and no discovery of additional scope on the day. Where a job falls outside what we do, we say so rather than taking it on.
Every job is documented. Photographs before and after go to your WhatsApp the same day, and certificates are issued where one is needed for inspection. The equipment is proper trade kit — HEPA-filtered extraction, calibrated instruments and cameran inspection — because diagnosis before parts is what keeps a quote honest.
We have worked on Dubai cooling since 2021, across 67 communities and everything from a single split unit in a JVC apartment to chiller plant rooms and commercial kitchen extract systems. That range matters, because it means the person who attends has seen your system type before.
Inspection first, fixed price, honest advice.
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HILLS AC Services, Business Park Building 4, 7th Floor, Hadaeq Sheikh Mohammed Bin Rashid, Dubai Hills, Dubai, UAE. Contact: info@hillsacservices.com · +971 58 563 0095.
Only to respond to your enquiry, quote, schedule and carry out your job, issue your invoice, and follow up about the service. We may contact you about a maintenance reminder for a service you have already used. You can opt out at any time by replying STOP on WhatsApp or emailing us.
We do not sell, rent or trade your personal data. We do not share it with third parties for marketing. We do not publish photographs of your property without your written permission.
Only where necessary to deliver the service: our technicians assigned to your job, and, for water tank work, the independent laboratory that issues your water clearance report. Both are bound to confidentiality.
Enquiry details are kept for 12 months if you do not book. Job records, invoices and service certificates are kept for 5 years to meet UAE accounting and warranty requirements.
Under UAE Federal Decree-Law No. 45 of 2021 on the Protection of Personal Data, you may request a copy of the data we hold on you, ask us to correct it, ask us to delete it, or withdraw consent to being contacted. Email info@hillsacservices.com and we will respond within 30 days.
Enquiries reach us through WhatsApp's encrypted messaging or our email. Job records are held on password-protected devices and accounts. Access is limited to staff who need it.
Our services are contracted by adults. We do not knowingly collect data from anyone under 18.
If we update this policy we will change the date at the top of this page.
HILLS AC Services enters people's homes and offices. We treat what we see and record there as confidential, and we handle your personal data in line with UAE Federal Decree-Law No. 45 of 2021 (the UAE Personal Data Protection Law).
We process your data on the basis of your consent (when you contact us) and to perform the contract for the service you have booked.
We ask for the minimum needed to quote and deliver the job: name, contact number, area, and address at booking. We do not ask for identification documents, financial details or anything unrelated to the service.
We do not store card details. Card payments are processed by the payment provider or terminal at the point of sale, and we retain only the transaction reference on your invoice.
Before and after photographs are taken of ducts, coils, tanks or work areas as a record of the job, and are shared with you. We will not use any photograph of your property in marketing without asking you first and receiving your written agreement.
If personal data is lost or exposed, we will investigate immediately, notify affected customers without undue delay, and report to the UAE Data Office where the law requires it.
Data queries and requests: info@hillsacservices.com
Prices shown on this website are starting prices. Your final price is fixed in writing after the inspection and does not change on the day, unless you ask us to add work that was not quoted.
Bookings are confirmed by WhatsApp or email. Please give us at least 12 hours' notice to cancel or reschedule so we can reallocate the slot.
Someone over 18 must be present to give access at the start and to sign off at the end. Please make sure ceiling access panels and tank hatches are reachable.
If you are not satisfied with a duct or deep cleaning job, tell us within 7 days and we will return and re-clean the affected area at no charge.
We are insured. We protect floors and furniture before starting. In the unlikely event we damage something, report it within 48 hours and we will repair, replace or compensate fairly. We are not liable for pre-existing faults in ageing AC equipment, ductwork or plumbing that become apparent during service. We will always point these out to you.
Payment is due on completion unless agreed otherwise in writing. We accept cash, card, bank transfer, Apple Pay, Samsung Pay, Google Pay, Tamara and Tabby.
These terms are governed by the laws of the Emirate of Dubai and the United Arab Emirates.
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