Exterior painting cost per sq ft in India: paint types, preparation and scaffolding
How exterior wall painting is priced per sq ft in India, how cement paint, exterior emulsion, elastomeric and texture finishes differ, and what raises the bill.
Exterior painting in India is quoted per sq ft of wall area painted, usually as a combined material plus labour rate, with scaffolding or rope access sometimes added as a lump sum. The rate depends on the paint system (cement paint at the low end, exterior acrylic emulsions in the middle, elastomeric and texture finishes higher), on preparation (washing, scraping, crack filling, primer, and damp treatment), and on height and access. As an illustrative guide, a straightforward repaint with primer and two coats might cost about ₹18–45 per sq ft before GST, and a system with crack repair and an elastomeric or texture finish ₹35–100.
Part of roof and façade cost per sq ft in India.
Paint systems compared
| System | What it is | Illustrative rate per sq ft (before GST) | Suits |
|---|---|---|---|
| Cement paint | Powder mixed with water, brushed on | Low end of the range | Boundary walls, budget repaints, utility areas |
| Exterior acrylic emulsion | Water-based paint with acrylic binder, primer + 2 coats | ₹18–45 | Most plastered house walls |
| Premium exterior emulsion | Higher-durability grades with better dirt pick-up and fade resistance | Upper part of ₹18–45 and above | Walls exposed to heavy rain and sun |
| Elastomeric coating | Thick, flexible coating that bridges fine cracks | ₹35–80 | Walls with hairline cracks, high-rain areas |
| Texture finish | Textured coat with a top coat of paint | ₹40–100 | Hiding uneven plaster, decorative façades |
The figures include a primer suitable for the surface. Each manufacturer's technical data sheet gives the number of coats, the coverage per litre and the recoating interval; ask the painter to follow it and write the coats into the quotation.
How the area is measured
Painters and contractors measure exterior walls in a few different ways, so agree the method in writing:
- Actual wall area: length × height of each wall, minus windows and doors above a certain size. Window and door reveals (the sides of openings) and projections such as chajjas and parapets are added.
- Elevation area: the outline of each face of the building, without deductions for openings, in return for not adding reveals. This is simpler but can overstate the area.
- Running foot items: bands, grooves, railings and grills are sometimes priced per running foot or per piece.
A simple worked measurement appears in the apartment façade repainting example.
Preparation: where the money really goes
Paint fails mostly because of the surface underneath. A good quotation lists:
- Washing with water, and fungicidal treatment of algae or fungus where present
- Scraping loose and flaking paint, and removing chalky layers
- Crack repair: hairline cracks filled with a crack filler, wider cracks opened and filled with a polymer mortar, with fibre mesh where cracks recur
- Plaster repair where plaster is hollow or falling off
- Damp treatment: finding and stopping the source of dampness (a leaking pipe, a terrace leak, rising damp) before painting
- Primer suitable for the surface and the top coat
Skipping steps 3 to 5 makes the job look cheaper in the quotation and costlier after the next monsoon. Dampness trapped behind paint causes blistering and peeling within months. See common waterproofing, cladding and paint failures.
Height and access
- Ground and first floor: ladders and small scaffolds; usually included in the rate.
- Two to four storeys: bamboo or steel scaffolding, often charged as a lump sum.
- Taller buildings: rope access or suspended platforms (cradles), with safety equipment for workers. This is specialised work and should be priced and insured properly.
Ask who is responsible for worker safety and for any damage to neighbours' property, cars or plants. Write it into the contract.
Illustrative example: independent house, 2,400 sq ft of wall
| Item | Basis (illustrative) | Amount |
|---|---|---|
| Washing, scraping and crack filling | 2,400 sq ft × ₹6 | ₹14,400 |
| Primer + 2 coats exterior emulsion | 2,400 sq ft × ₹28 | ₹67,200 |
| Scaffolding for upper floor | Lump sum | ₹12,000 |
| Subtotal | ₹93,600 | |
| GST at 18% (if a registered contractor supplies and applies) | ₹16,848 | |
| Total | ₹1,10,448 |
If the owner buys the paint and hires a painter only for labour, GST on the paint is paid at the product rate on the shop bill, and the labour may or may not carry GST depending on whether the painter is registered. See GST on roofing, cladding and painting work.
How often to repaint
There is no single rule. Exposure to sun, rain, coastal salt and pollution, the paint grade and the preparation all matter. Look for chalking (a powdery film when you rub the wall), fading, fungus, peeling and cracks. Repainting before the wall is badly weathered usually costs less in preparation.
FAQ
Is putty needed on exterior walls?
Many interior putties are not meant for exterior use. Some products are designed for exteriors; follow the paint manufacturer's system rather than applying interior putty outside.
Should I paint during the monsoon?
Most exterior paints need a dry surface and dry weather for application and curing. The dry months are usually better; follow the product's data sheet.
Can paint stop a damp wall?
Paint alone rarely stops water coming from inside the wall or from a terrace or pipe leak. Find and fix the source first.
Does the painter's warranty matter?
Yes. Ask for a written workmanship warranty and check whether the paint manufacturer offers a product or system warranty and its conditions. See warranty claims.
Sources and where to check
- Bureau of Indian Standards — Indian Standards for paints and the National Building Code
- CBIC GST portal — GST rates for paints and for works contracts
- National Consumer Helpline — help with a dispute over a painting job
