Service
For apartments across South and West India
Apartment work is governed by society access rules, parapet conditions, and the need to fix without damaging common-area finishes. This page covers how we survey a typical high-rise bay and what residents should prepare. Nets fitted across service shafts and duct openings to stop falling objects, bird nesting and refuse accumulation. Use the state and city links below for local pages; each city URL keeps its own specification notes so content is not copied from one metro template.

- Photo estimate on WhatsApp
- Written quotation after survey
- Named material grades
- Eight-state coverage

Photo → WhatsApp estimate
Send a clear photo of the opening in your city
One wide shot and a close-up of the fixing surface are enough to confirm coverage, suggest the right system, and outline what should appear on a written quotation before you book a survey. Firm totals still follow measurement on site.
- ✓ City / PIN in the message
- ✓ Priority: kids, birds, view, or monkeys
- ✓ Rough width × height if known
- ✓ Floor / society access notes
From one photo to a checked fitting

01
Share the opening
Send a clear photo, your city, and whether the priority is children, pets, birds, visibility, or sports use.

02
Measure and check
We confirm dimensions, fixing surfaces, access, and how the space is used day to day.

03
Compare the estimate
Review material grade, spacing, included installation, warranty terms, and the price unit in writing.

04
Install and inspect
Fit the chosen system, check edges and tension, and walk through basic care before handover.

intentFocus
For apartments
Apartment work is governed by society access rules, parapet conditions, and the need to fix without damaging common-area finishes. This page covers how we survey a typical high-rise bay and what residents should prepare.
Nets fitted across service shafts and duct openings to stop falling objects, bird nesting and refuse accumulation. This hub is only for For apartments; sibling subsections (price, installation, balcony, and so on) keep their own URLs so crawlers do not see the same body pasted under different headings.
Below, every published state links onward to city pages for duct area nets. Locality and intent pages under those cities carry place-specific notes rather than repeating this national overview.

coverage
For apartments by state
Use this matrix to reach a city-level duct area nets page. Each state row summarises coverage; city pages then diverge by climate and building stock.
- Telangana
- For apartments is available across 33 mapped cities in Telangana, including Hyderabad, Adilabad, Karimnagar, Khammam, Mahabubnagar and Medak. Open a city page for climate-specific grade and spacing notes — The Deccan plateau climate here is hot and dry for much of the year with a concentrated south-west monsoon. Without salt-laden air, AISI 304 stainless is genera…
- Andhra Pradesh
- For apartments is available across 29 mapped cities in Andhra Pradesh, including Vijayawada, Visakhapatnam, Anantapur, Chittoor, Eluru and Guntur. Open a city page for climate-specific grade and spacing notes — The coastal belt is hot and humid nearly year-round, with a strong south-west monsoon reinforced by north-east retreating rains and a real cyclone risk between …
- Karnataka
- For apartments is available across 31 mapped cities in Karnataka, including Bengaluru, Mysuru, Ballari, Belagavi, Davanagere and Dharwad. Open a city page for climate-specific grade and spacing notes — The plateau enjoys a comparatively mild climate, which is easy on materials, though Bengaluru's altitude and open corridors make upper-floor balconies windier t…
- Tamil Nadu
- For apartments is available across 39 mapped cities in Tamil Nadu, including Chennai, Coimbatore, Madurai, Cuddalore, Dindigul and Erode. Open a city page for climate-specific grade and spacing notes — The coastal belt is hot and humid with the main rainfall arriving on the north-east monsoon between October and December, often as intense, prolonged events. Sa…
- Kerala
- For apartments is available across 14 mapped cities in Kerala, including Kochi, Thiruvananthapuram, Alappuzha, Kannur, Kasaragod and Kollam. Open a city page for climate-specific grade and spacing notes — Kerala receives among the heaviest south-west monsoon rainfall in the country, with humidity staying high through most of the year. Combined with coastal chlori…
- Maharashtra
- For apartments is available across 37 mapped cities in Maharashtra, including Mumbai, Nagpur, Navi Mumbai, Pune, Thane and Bandra East. Open a city page for climate-specific grade and spacing notes — The Konkan coast, including Mumbai, takes extremely intense south-west monsoon rainfall with strong onshore wind, while Pune and the interior sit in the rain sh…
- Odisha
- For apartments is available across 30 mapped cities in Odisha, including Bhubaneswar, Cuttack, Rourkela, Angul, Balangir and Balasore. Open a city page for climate-specific grade and spacing notes — Hot and humid through most of the year, with a strong south-west monsoon and a pronounced cyclone season between October and December. Design wind speeds along …
- Goa
- For apartments is available across 4 mapped cities in Goa, including Margao, Panaji, Mapusa and Vasco da Gama. Open a city page for climate-specific grade and spacing notes — Very heavy south-west monsoon rainfall over roughly four months, high humidity year-round and permanent salt exposure across the whole territory. This combinati…

benefits
What you get from it
- Nothing falls the full height
- Objects dropped into the shaft are caught at the nearest net rather than landing many floors below.
- Ends bird nesting in the shaft
- Closing the shaft head denies access outright, which is the only reliable way to stop roosting in a space nobody can clean.
- Cuts recurring cleaning cost
- Refuse and droppings stop accumulating at the shaft base, removing a job that facilities teams otherwise repeat every year.
- Protects the services in the riser
- Pipework and cabling in the duct stop being fouled by nesting material, which is a genuine fire and hygiene concern.

applications
Where it is used
- Plumbing and electrical risers
- The common residential case, where the shaft carries stacks and cabling and is open at roof level.
- Light wells and ventilation shafts
- Open wells between wings of a building, which collect both birds and litter from the flats overlooking them.
- Lift overrun and machine spaces
- Netting that keeps debris out of spaces where a fallen object could interfere with equipment.
- Industrial pipe and cable risers
- Plant risers where dropped tools are a genuine hazard to anyone working at a lower level.

installation
How the installation runs
This is survey-led work. A typical job takes 4 to 16 hours on site once the specification is settled.
Shaft survey and access plan
Shaft dimensions, wall construction and safe access are established first; this is confined, at-height work.
Clearing existing nesting and debris
The shaft is cleared before enclosure, since netting over an existing nest traps the problem instead of solving it.
Anchor installation
Eye bolts are set into sound structural wall at a spacing that keeps the border rope taut across the span.
Net fitting and tensioning
Panels are laced and tensioned so no belly forms, with corners closed tightly against the shaft wall.
Access panel and handover
Serviceable access sections are formed and shown to the facilities team so future entry does not damage the net.
- Arrange roof and shaft access with the building management
- Isolate or protect live services within the shaft before work starts
- Agree disposal arrangements for material cleared from the shaft

safety
Safety and standards
- Work carried out under confined-space and work-at-height precautions
- Anchorage installed to manufacturer pull-out values for the shaft wall construction
- Never net over an occupied nest
- Enclosing a live nest is both inhumane and self-defeating; the shaft is cleared before any panel goes in.
- Access must be designed in
- A net with no access panel will be cut open the first time the riser needs servicing, and never repaired.
- Shaft walls are often not structural
- Many shafts are lined with thin blockwork. Anchors have to find real structure, which the survey establishes.

features
How the system is built
- Shaft-head enclosure
- A tensioned panel across the top of the shaft, which is where exclusion has to happen for it to work at all.
- Intermediate catch nets
- On tall shafts, nets at intervals limit the drop height and let a caught item be retrieved from a nearby floor.
- Maintenance access panels
- Laced access sections let the duct be entered for servicing without cutting the net and leaving a permanent hole.
- Anchorage into shaft walls
- Fixings are set into the shaft's structural walls, avoiding the render and blockwork patches shafts are often finished with.

materials
Materials we specify
| Material | Specification | Why it matters |
|---|---|---|
| HDPE duct netting | UV-stabilised HDPE, 1.2 mm to 2 mm twine, knotted | Chosen for its stability where a net will be left in place for years with little inspection, as duct nets always are. |
| Nylon catch netting | Braided nylon, higher denier, for intermediate catch layers | Where the net must arrest a genuinely heavy falling object, nylon's ability to absorb energy is what is needed. |
| Stainless anchorage | AISI 304 eye bolts, turnbuckles and border rope | Shafts are damp and poorly ventilated, so stainless is used throughout rather than galvanised hardware. |

maintenance
Keeping it working
We recommend an inspection every 12 months. Most of it is straightforward enough to do yourself.
- Clear caught debris
- Anything the net has caught is removed, since accumulated weight and trapped moisture are what degrade it.
- Check tension and border rope
- The border rope and anchors are checked for slack and corrosion, which develop quickly in a damp shaft.
- Verify access panels reseal
- Panels opened for servicing are checked to confirm they were laced closed properly afterwards.

quality
Quality checks and warranty
This product carries a 3-year warranty on materials and workmanship, on the basis that the recommended inspection is carried out.
- Shaft cleared and photographed before enclosure
- Anchor substrate confirmed as structural
- Perimeter checked for gaps at corners and penetrations
- Access panel positions recorded for the facilities team

pricingFactors
What drives the price
- Shaft plan area and count
- A block with several risers is quoted per shaft, and the plan area of each sets the netting required.
- Number of net levels
- A tall shaft with intermediate catch nets involves several installations at height rather than one at the top.
- Access difficulty
- This is often the largest single factor, since safe access into a live shaft can take longer than fitting the net.
- Pre-clearing required
- Shafts with years of accumulated nesting material need clearance and disposal before enclosure can begin.
We do not publish a rate per square foot, because the same area can differ in price by a factor of two depending on grade, spacing and access. Every quotation states these explicitly.

whyChoose
Why Avensafe for For apartments
- Installing since 2016
- Avensafe Solutions has specified and installed balcony and window safety systems since 2016, so survey and fixing habits are built from years of real openings rather than a product brochure.
- Coverage across eight states
- Crews work across Andhra Pradesh, Telangana, Karnataka, Kerala, Tamil Nadu, Goa, Odisha, and Maharashtra, with quotations written for local building stock and climate.
- Survey before any firm price
- Every firm quotation follows a measured visit: opening sizes, substrate, access, and society rules are written down so you can compare like for like.
- Premium graded materials
- Cable grade, mesh polymer, and hardware are named on the quotation — not left as generic “stainless” or “UV net” claims.
- Variant-specific quotation
- Quotes for For apartments name the intent-relevant spacing, mesh, or hanger detail — not a generic duct area nets lump sum.
Questions we are asked most

How long does an installation take?
A cloth hanger is usually done in an hour or two. A single balcony safety net takes two to six hours, and an invisible grill on one or two bays takes most of a working day. Larger jobs such as sports enclosures or building covering run to several days because foundations and scaffold have to be dealt with first.
Will pigeons find a way back in after netting?
Only if the enclosure was left with a gap, which in practice means a corner or a service penetration that was not properly closed. A correctly fitted net denies access outright. That is why we clear existing nesting material first and check corners and pipe penetrations last, since those are where birds actually get through.
If you net our duct, how do we service the pipes later?
Access has to be designed in from the start, which is why we form laced access panels at agreed positions and record where they are for the facilities team. A net with no access provision gets cut open the first time the riser needs work and is never repaired, which defeats the whole installation.
How often should an installation be checked?
Once a year is right for most installations, and it is largely something you can do yourself: press the cables or net at mid-span to feel for slack, look at the anchor points for rust weeping or hairline cracking, and wash the surfaces down. In coastal and cyclone-exposed locations we recommend an additional check after the wet season.
Do you need to visit before giving a price?
For anything structural we do, yes. We can give an indicative range over the phone from your balcony dimensions, but the final price depends on the condition of the wall or slab we are fixing into, the access route for materials, and the exact spacing you need. A survey takes about twenty minutes and means the quotation we give you is the price you pay.
Do you actually cover my area, or only the main city?
We cover the localities listed on our service area pages, and those lists reflect where we genuinely operate rather than everywhere we would like to. If your locality is not listed, call us anyway: we often work just beyond a listed boundary, and we will tell you plainly if a job is outside our reach rather than sending someone unprepared.
Our shaft is full of nesting material. Is that included?
Clearing is quoted separately because the volume varies enormously, but it is not optional. Netting over an existing nest traps the problem instead of solving it and is inhumane besides. We clear and photograph the shaft before any panel goes in, and agree disposal arrangements with the building management first.
How long should a safety net last?
A properly stabilised net in a moderate climate should give several years of service, and considerably longer where it is shaded. The way to judge it is by feel rather than by date: twine that has become stiff or chalky and snaps instead of stretching has reached the end of its life and should be replaced.
What warranty do you provide?
Warranty depends on the product, and the figure for each one is stated on its service page rather than promised generically here. In every case the warranty covers materials and workmanship on what we installed, and it assumes the yearly inspection is carried out. We will always tell you what is and is not covered before you commit.
My net or cable has gone slack. Is that a problem?
It needs attention but rarely means replacement. Slack in a cable widens the gap under load, which is the thing a barrier exists to prevent, and slack in a net lets it whip and abrade against fixings. Both are usually corrected by re-tensioning at the existing hardware, which is a short visit rather than a new installation.
Will my apartment association need to approve the work?
In most gated communities and housing societies, yes, because anything fixed to an external wall or balcony counts as a facade alteration. We can supply the drawings and material specification you need to submit. It is worth starting that process early, since approval usually takes longer than the installation itself.
Our work
Duct Area Safety Nets installation gallery
Installation photography from comparable openings — used to judge finish quality before you book a survey.
Photo estimate
Book a survey for Duct Area Safety Nets
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Service areas
For apartments across every state we cover
Pick your city for climate-specific notes and local installation guidance — not one metro paragraph reused nationwide.
Explore more
Related pages & topic clusters
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Conversion
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