Why You Need a 10% Snagging Buffer: Post-Handover Fix Costs Homeowners Underestimate
There is a specific moment in almost every project we hand over where a client walks through their finished flat for the first time without us standing next to them, runs a hand along a countertop edge or opens and closes a wardrobe shutter a few times, and asks whether what they are noticing, a slightly uneven gap at the top of a door, a switch plate that sits a millimetre proud of the wall, is normal or a problem. It is an entirely reasonable question, and the honest answer is that it is normal, in the sense that no interior fit-out of any real complexity comes out of the execution phase completely free of small defects, but it is also absolutely a problem worth fixing before final payment, which is exactly what the snagging or punch-list phase exists to catch. What surprises most first-time renovation clients is not that these issues exist, it is how many of them there typically are on a full flat, and how the combined cost of rectifying them, if you have not budgeted for it, can turn a project you thought was financially closed into one more round of unexpected spending right when you are ready to move in and stop thinking about construction.
What a Snagging Walkthrough Actually Finds
On a typical 3BHK interior fit-out in New Town or Rajarhat that we have executed ourselves, a formal snagging walkthrough conducted room by room against the original scope and drawings typically turns up somewhere between 35 and 70 individual items, and that range holds fairly consistently regardless of how experienced the execution team is, simply because a flat of that size involves thousands of individual joints, fittings, and finish transitions, each one a small chance for something to land slightly off. The overwhelming majority of what we find falls into a handful of predictable categories. Paint touch-ups account for the largest single share, typically 30 to 40 percent of the total item count, covering everything from roller marks near ceiling junctions to small scuffs picked up during the final week of furniture and fixture installation when the most foot traffic and material movement happens in the flat. Door and shutter alignment issues, meaning hinges that need re-adjustment because a door has settled slightly out of square or a wardrobe shutter that does not sit flush when closed, typically make up another 15 to 20 percent, and these are almost always a hardware adjustment rather than a structural problem, quick to fix but easy to miss if nobody is specifically looking for them.
Hardware and fitting adjustments, covering things like a soft-close drawer mechanism that needs recalibrating, a cabinet handle that has worked slightly loose, or a CP fitting with a minor drip that needs a washer replaced rather than a full fixture swap, typically account for another 10 to 15 percent of the punch list. The remaining share is a mix of electrical points that need a cover plate straightened or a switch that was wired to the wrong circuit during a late layout change, small grout or sealant gaps around counters and backsplashes that need re-caulking, and the occasional larger item, a tile that has come loose, a false ceiling panel with a visible seam, that shows up less often but costs more to fix when it does. We have handed over well over a hundred residential and commercial projects across New Town, Salt Lake, and greater Kolkata over the past decade, and we genuinely cannot recall one that came out of construction with a completely clean snag list, which is precisely why we build a formal walkthrough into every project timeline rather than treating it as an optional extra step.
What These Fixes Actually Cost
Individually, the large majority of snagging items are inexpensive to correct, and that is exactly what makes the category dangerous to underbudget for, because each line item on its own looks trivial while the aggregate does not. Paint touch-ups across a full flat, done properly with feathered edges and colour-matched batches rather than visible patch marks, typically run ₹3,000 to ₹8,000 in labour and material depending on how many rooms and how extensive the touch-ups are. Door and shutter realignment, which is mostly labour with minimal material cost, runs ₹150 to ₹400 per door or shutter, and across a 3BHK with kitchen, wardrobe, and room doors combined, that can easily be 15 to 25 individual adjustments, adding up to ₹4,000 to ₹9,000. Hardware fixes, replacing a worn soft-close mechanism or tightening and re-aligning handles and hinges, run ₹200 to ₹1,500 per item depending on the hardware brand and whether a full unit needs replacing versus a simple adjustment.
Electrical corrections, when they involve re-routing a miswired point or replacing a switch plate, typically run ₹500 to ₹2,500 per point depending on whether the wall needs to be opened. Re-grouting and re-caulking around wet areas and countertops, which we treat as a priority item because a gap in sealant around a kitchen counter or bathroom basin is a moisture entry point waiting to become a bigger problem, runs ₹2,000 to ₹6,000 for a full flat's worth of touch-up sealing. Add these categories together across a typical 35 to 70 item punch list on a mid-range 3BHK, and the aggregate rectification cost, even before factoring in any larger unexpected item, generally lands between ₹18,000 and ₹45,000, which on a flat with a total interior budget in the ₹9 lakh to ₹14 lakh range works out to roughly 1.5 to 3.5 percent of the total project cost just for these final corrections. That is before accounting for the occasional larger find, a section of flooring that needs re-laying because of an underlying levelling issue, or a false ceiling section that needs to be reopened and re-hung, either of which can independently add ₹15,000 to ₹40,000 depending on the area affected.
Why We Recommend a 10 Percent Buffer, Not Just the Snagging Estimate Itself
The reason we ask every client to hold back roughly 10 percent of their total interior budget as an unallocated contingency, rather than just the narrower snagging estimate above, is that the punch-list phase is where problems that were quietly building through the execution phase finally surface, and not all of them are cosmetic. A door that seemed to close fine during a mid-construction site visit can reveal, once furniture and full loading are in place and the flat has settled through a few weeks of actual use, that a frame was installed slightly out of plumb, which is a bigger fix than a touch-up. A countertop seam that looked acceptable under site lighting can show a visible colour mismatch under the client's actual room lighting once curtains and fixtures are in. None of this is evidence of bad execution, it is simply the nature of finishing work at this level of precision, where a flat only reveals its true final condition once it is fully lived in rather than under construction, and having budget headroom for these findings, rather than treating your last payment milestone as the true end of spending, is what prevents what should be a routine quality-assurance step from turning into a payment dispute between you and your contractor.
That dispute risk is, in our experience, the real cost of skipping this buffer, more than the rectification costs themselves. When a client has spent their entire budget down to the last rupee by the time of handover and then discovers a punch list of forty items, the natural reaction is to feel that the contractor should absorb all of it for free, and the contractor, having already priced the job on the assumption of a defined scope, often disagrees about where the line sits between a defect they are responsible for correcting and a change or refinement the client is now requesting. Building a 10 percent contingency into your budget from the outset removes that argument entirely, because you have already planned for this phase to cost something, and the conversation becomes about which specific items need fixing rather than whether you should have to pay for any of it at all. We structure our own contracts with a defined snagging period and a retained percentage of final payment specifically to align incentives here, but the client-side buffer matters just as much, because retained payment covers our accountability, while your own contingency covers the discretionary upgrades and refinements that inevitably occur to you once you are actually living in the space.
If sustainable material choices were part of your original specification, it is worth knowing that certified low-VOC finishes and FSC-certified ply can occasionally behave slightly differently during the snagging phase, since some natural finishes need a longer cure window before final touch-ups look right, which we get into in how much extra sustainable and low-VOC materials really cost in Kolkata interiors. The finish choice on cabinetry and doors also has a real bearing on how visible and how costly touch-ups end up being, and our comparison of veneer versus laminate cost per square foot for Kolkata homes covers how each surface responds to the kind of minor rework a punch list typically demands. And since hardware adjustment is one of the largest categories on nearly every snag list we run, our breakdown of what you're actually paying for across Hettich, Hafele, Ebco, and local hardware brands is worth reading before you finalize hardware specs, since brand tier has a direct effect on how often this category shows up at all.
Plan for the Last Mile, Not Just the Build
If you are budgeting a renovation right now and the number you have in your head is the sum of every quoted line item with nothing held back for what surfaces after handover, we would genuinely rather have that conversation with you before you sign a contract than after your flat is finished and you are staring at a punch list you did not plan for financially, so reach out through our contact page and we will walk you through what a realistic contingency looks like for a project your size.