| Accessible window, balcony side or standard opening | ₹15–₹20/sq ft | A regular opening with a sound fixing surface, standard bird-exclusion mesh and safe access from inside. | Measured area, aperture, frame or wall condition, perimeter length and the number of separately finished edges. | A minimum service charge may apply to one small window or vent even if area × rate gives a lower figure. |
| Several residential openings or an irregular utility area | ₹18–₹25/sq ft | Windows, side gaps, stairwell voids and utility openings need different cuts but can be planned in one visit. | Opening count, pipe routes, corners, existing grills, cleaning reach and individual edge finishing. | The quote should list every included opening so a low front-face rate is not confused with full scope. |
| Fine mesh for sparrow- or myna-scale entry | ₹20–₹28/sq ft | Small birds are entering a window return, roof void, ventilator surround or another gap that wider mesh may not exclude. | Target species, verified aperture, material, support spacing, free-air requirement and dust or grease exposure. | Smaller birds generally need a smaller aperture; the mesh must still suit the opening and its ventilation duty. |
| Service shaft, atrium, covered courtyard or duct face | ₹22–₹30/sq ft | A deeper or taller void needs a support layout, carefully closed perimeter and planned maintenance access. | Depth, span, support cable or rope, access panel, pipes, drainage, fire and maintenance restrictions. | The floor area is not used; each vertical, horizontal or return face that needs netting is measured separately. |
| High-floor, exposed or difficult-access installation | ₹25–₹35/sq ft | The opening is broad, irregular or externally reached and needs a more demanding fixing and safe-access plan. | Floor level, access equipment, substrate condition, span width, edge count and any work outside normal reach. | Compare the access method, support system and scope—not only the advertised per-square-foot figure. |
| Warehouse, factory, roof-truss or loading-bay bird netting | Survey-based commercial quote | A large indoor or semi-open zone needs bird exclusion around rafters, bays, storage or process areas. | Total span, height, equipment, cable grid, operating hours, hygiene controls, fire requirements and access equipment. | Large commercial work should not be priced as a residential window without a drawing, measurement and responsibility schedule. |
| Bird-net repair, partial replacement or re-tensioning | Inspection-based repair quote | An existing net has a torn section, open edge, failed fixing, excessive sag or a service opening that no longer closes properly. | Material match, damage extent, anchor condition, access, age of the old system and whether full replacement is more sensible. | Ask whether the repair receives separate written support terms; an old net's original warranty may not transfer to new work. |