Painting Estimation for Multi-Storey Buildings: What Actually Matters

You’re standing on the sidewalk, neck craned back, counting windows on a 12-storey apartment block. Your notepad is getting wet. The building super is waiting inside. And you’ve got maybe 20 minutes to figure out a number that won’t lose you money.

Multi-storey estimation isn’t residential work with more floors. It’s a different animal entirely. Miss something here, and you’re not eating a few hundred dollars — you’re bleeding thousands.

Here’s what nobody tells you when you move up from houses and townhomes.

Start With Access, Not Square Footage

Most estimators jump straight to wall areas. That’s backwards.

On a multi-storey building, access determines everything. Your labour cost swings 30-40% depending on how your crew reaches the work.

Swing stages let you drop two guys and a paint pot down the face of a building. Fast. Efficient. But you need anchor points, and not every building has them. Some older high-rises in Toronto and Vancouver need engineered tie-backs installed before you can hang a stage. That’s a five-figure line item before a single gallon hits the wall.

Boom lifts work for buildings up to about 8 storeys. After that, you’re into specialized equipment with delivery charges that sting. A 125-foot boom lift rental in Calgary runs $1,200-1,800 a week. Two booms on site for a month? Do the math.

Scaffolding is the default for masonry buildings under 6 storeys. But it’s slow to erect, slow to move, and the rental clock starts the day it’s delivered — not the day you start spraying.

Rope access (IRATA-certified crews) is common on commercial towers in Vancouver and Toronto. It’s cheaper than a swing stage for small repairs, but you can’t hang a sprayer off a rope. Production rates drop.

Before you measure a single wall, answer this: how are my guys getting to the surface? That answer shapes every number that follows.

Measuring Without Losing Your Mind

Multi-storey buildings have repetition. Use it.

The Floor-by-Floor Trap

Don’t measure every floor individually if floors 2 through 11 are identical. Measure one typical floor. Multiply. Then handle the ground floor and penthouse separately — they’re always different.

But here’s the catch: verify that repetition. Walk at least two mid-level floors. I’ve seen buildings where the architect changed the window schedule on floor 7 and nobody mentioned it. The drawings showed identical elevations all the way up. They weren’t.

What You’re Actually Measuring

For exterior painting estimation on multi-storey buildings, you need:

Wall area by substrate. Concrete, stucco, metal panel, EIFS, brick. Each has a different spread rate. Stucco can eat 2-3 times the paint of smooth concrete.
Window and door openings. Count them. Then decide: are you deducting them from wall area, or treating them as separate line items? On a 200-unit building, the trim painting around windows is a job in itself.
Soffits, fascias, and architectural details. These are slow. A linear foot of soffit takes longer than a square foot of flat wall. Price accordingly.
Parapets and roof features. Often missed. Always visible from the street. The client will notice if they’re not painted.

The Interior Reality

Corridors. Stairwells. Lobby. Maybe parking levels.

Corridors are repetitive but tight. Your painter spends half his time moving drop cloths and edging around door frames. Production rates drop 25-40% compared to open rooms.

Stairwells are worse. Everything is cut-ins. High walls above staircases. Difficult access. Price these separately — they’ll burn your labour budget if you roll them into a per-square-foot rate for open areas.

Coatings: Cheap Paint Costs More

Multi-storey buildings aren’t houses. You’re not grabbing a few pails of SuperPaint and calling it done.

Exterior coatings on commercial and multi-residential buildings are typically high-build elastomerics, epoxy primers, or specialized DTM (direct-to-metal) coatings. These aren’t $40 a gallon. They’re $80-200 a gallon. And they have specific recoat windows, minimum temperatures, and application requirements.

If you price the job using residential paint costs, you’ll lose money on materials alone.

Interior coatings in multi-storey buildings often include:

High-traffic epoxies for corridors
Low-VOC paints for occupied units (strata rules, tenant health)
Fire-rated coatings on structural steel
Anti-microbial paints in healthcare or senior living facilities

Each product has a different spread rate, different dry time, and different labour impact. A paint that requires two coats but covers in one? That’s a labour savings. A cheap paint that needs three coats to hide? You just tripled your labour cost on that surface.

The Labour Math That Actually Works

Here’s a real-world approach to labour on multi-storey jobs.

Exterior Production Rates

A painter on a swing stage isn’t moving at the same speed as a painter on the ground. He’s working from a platform. He’s tied off. The stage moves slowly. Wind slows things down further.

Realistic daily production for one painter on exterior walls:

Swing stage, spray application: 800-1,200 sq ft/day
Swing stage, brush and roller: 300-500 sq ft/day
Boom lift, spray: 1,000-1,500 sq ft/day
Scaffolding, brush and roller: 400-600 sq ft/day

These numbers assume a typical commercial exterior with moderate detailing. Adjust down for heritage buildings, heavy ornamentation, or extreme heights.

Interior Production Rates

Corridors and stairwells are slow. A painter might cover 200-300 sq ft of wall area per day in a stairwell, versus 800-1,000 in an open unit. Factor that difference into your takeoff — don’t use a blended rate unless you’ve actually calculated the blend.

The Stuff That Kills Your Margin

Every estimator who’s been doing this a while has a list of jobs that went sideways. Here’s what usually causes it.

Weather Windows

In Canada, exterior painting has a season. Depending where you are, you’ve got maybe April through October. Multi-storey buildings take months. If you start in August and the weather turns in October, you’re in trouble.

Build a schedule. Work backwards from the latest safe painting date. Account for rain days — in Vancouver, that’s 2-3 days a week in fall. In Calgary, you might get shut down by wind.

Occupied vs. Vacant

Occupied buildings are a different job. You’re working around tenants. You need containment for dust and fumes. You’re coordinating access to individual units. Your production rate drops 20-30% minimum.

Vacant buildings are faster. But they might not have heat, water, or power. If you’re painting interiors in November in an unheated building in Edmonton, your paint won’t cure. You’ll be back for warranty work in the spring.

Surface Prep Nobody Talks About

Multi-storey buildings are old. Or they’re new but poorly maintained. Either way, you’re dealing with:

Efflorescence on masonry — white mineral deposits that need removal and sealing
Failed caulking around windows — if you paint over it, you own the leak
Rust on structural steel — needs grinding, priming, possibly full removal
Previous coating failure — peeling, blistering, alligatoring. You can’t just paint over it

Walk the building with a knife. Scrape things. See what’s underneath. What you find changes your prep labour by multiples.

The Takeoff Process

Step 1: Get the Right Drawings

If the client won’t give you drawings, walk away. You cannot estimate a 12-storey building from the ground with a tape measure and binoculars. You need:

Elevation drawings (all four sides)
Floor plans (typical floor plus ground and any variations)
Reflected ceiling plans if you’re doing soffits
Door and window schedules

Step 2: Do the Math That Matters

For each surface type, calculate:

Total area
Minus openings (or separate line item for trim)
Times number of coats
Divided by spread rate = gallons
Times cost per gallon = material cost
Divided by daily production rate = labour days
Times daily labour rate = labour cost

Then add:

Access equipment (rental, delivery, setup, operator if needed)
Surface prep (power washing, scraping, patching, priming)
Protection (membrane on windows, drop cloths, masking)
Mobilization and demobilization
Waste disposal
Travel time if crew is commuting

Step 3: Check the Math Against Reality

Take your total and divide by approximate square footage. Does the per-square-foot number make sense? If you’re at $2.50/sq ft for a basic repaint and the market is $4-6, you missed something.

Common Multi-Storey Building Types in Canada

1960s-70s concrete high-rises. Every major city has them. Concrete spalling is common. Budget for patching. The original paint might be lead-based — abatement changes everything.

Curtain wall towers. Glass and metal panels. You’re painting the metal, not the glass. Masking is enormous. Dismantling panels is sometimes required. Know before you quote.

Wood-frame mid-rises (5-6 storeys). Common in BC and Alberta. Exterior is typically stucco or HardiePanel. Access is usually scaffolding or boom lifts. Easier than high-rise, but still not a house.

Heritage masonry. Brick or stone, 3-10 storeys. Often require specialized coatings for breathability. Wrong product = trapped moisture = spalling brick. Expensive mistake.

A Practical Checklist Before You Submit

[ ] Access method confirmed and costed
[ ] Surface prep included (cleaning, patching, priming)
[ ] Coating system specified (primer + finish, number of coats)
[ ] Weather contingency in schedule
[ ] Occupancy status factored into production rates
[ ] Waste disposal and site cleanup included
[ ] Travel and mob/demob costed
[ ] Warranty terms understood
[ ] Subcontractor quotes (if any) received in writing
[ ] Exclusions clearly listed in proposal

Getting the Takeoff Right

None of this matters if your measurements are wrong.

Manual takeoffs from printed plans work. But on a multi-storey building, you’re measuring the same balcony guardrail 200 times. You’re counting windows across 12 floors. You’re calculating wall areas with dozens of openings. It’s tedious. And tedious work invites mistakes.

That’s where digital takeoff tools earn their keep. VectorTakeoff, for example, lets you pull quantities straight from digital plans — wall areas, linear feet of trim, door and window counts — without a scale ruler or a calculator. For painting contractors doing multi-storey work, it cuts hours off the estimating process and catches the small stuff that bleeds margin. You can try it at vectortakeoff.com.

The Bottom Line

Multi-storey painting estimation rewards the methodical. The contractors who win these jobs consistently aren’t the cheapest — they’re the ones who accounted for access, understood the coatings, and built a schedule that respects the weather.

Measure twice. Price the access. Know your production rates. And never assume the drawings tell the whole story.

Walk the building yourself. Touch the surfaces. Count the windows. Your profit is in the details you catch that the other guy missed.