Post-construction cleaning is some of the most profitable work a cleaning company can take on. It is also some of the easiest to underbid. It looks like cleaning, so owners price it like cleaning. But fine drywall dust on every surface, stickers on every window, and a site that is rarely as “ready” as promised make it slow, detailed work that costs far more per square foot than a routine clean.
Price it from the hours and you will win profitable jobs consistently. Work from a gut-feel number instead and you will either lose the bid or, worse, win it and lose money. This guide walks through how to scope and price post-construction cleaning so the number you send holds up.
Want a number while you read?
The post-construction cleaning calculator applies the phase and debris math from this guide to your square footage and rates. Use it to follow along.
Know which phase you are pricing
Post-construction cleaning is usually done in up to three phases, and each one carries a different amount of work. Before you can price a job, you need to know which phases you are responsible for. Quoting a final clean and then being expected to do the rough clean too is a fast way to wipe out your margin.
Rough clean
Lighter, roughly 60% of a final cleanWhen: After major work, before finishes
Work: Debris removal, heavy dust, sweeping, trash out
Final / detail clean
The baseline, the thorough passWhen: After finishes are installed
Work: Surfaces, fixtures, glass, floors, move-in ready
Touch-up clean
Lighter, roughly 40% of a final cleanWhen: Right before handover
Work: Punch list, fingerprints, last-minute dust
If you are bidding all three phases, price them as one combined effort rather than three full cleans. There is overlap, but the total hours run well above a final clean alone. The calculator handles this with a combined multiplier so you do not triple-count.
Always walk the site before you bid
Post-construction is the one type of cleaning you should never price sight unseen. Two buildings of the same square footage can differ by a factor of two in hours depending on the debris, the finishes, and how far along the construction actually is. A walkthrough is how you protect yourself.
On the walk, note the things that drive your hours up:
- Debris and dust level. Light and swept, typical build dust, or heavy drywall dust with stickers and paint. This alone can swing the hours by half.
- Glass and windows. Stickers, paint overspray, and adhesive on glass are slow, manual work. Count the windows and note high or exterior ones.
- Floor type and finish. Tile grout haze, hardwood that needs careful handling, or polished concrete each carry their own detail time.
- Access and readiness. Is power and water on? Are other trades still working? A site that is not truly ready means return trips and lost hours.
Build the price from labor hours
The dependable way to price post-construction work is from the hours it will take, not a price per square foot pulled from the air. The square-foot number is a sanity check at the end, not the starting point.
Estimate the labor hours by dividing the square footage by a realistic production rate, then adjust for the phase and debris level. Post-construction final cleans move slowly. A detailed residential clean might cover only 150 to 200 square feet per labor hour, far less than a routine janitorial pass. From there:
The pricing chain
- 1. Square footage ÷ production rate = baseline hours
- 2. Baseline hours × phase multiplier × debris multiplier = crew hours
- 3. Crew hours × burdened labor rate = labor cost
- 4. Labor + supplies + overhead = total cost
- 5. Total cost ÷ (1 − margin) = your bid price
Run that out and check the result against the market. Most post-construction final cleans land between $0.30 and $0.50 per square foot; heavy debris and full multi-phase jobs push higher. If your number comes out at $0.08 per square foot, you have used a routine-cleaning production rate by mistake. If it is at $1.50 with no special conditions, you may have over-counted.
Let the calculator do the arithmetic
The post-construction calculator runs this exact chain. Enter the square footage, pick the phase and debris level, set your rates, and it returns crew hours, a bid price, and price per square foot.
What owners leave out of the bid
Most lost margin on post-construction jobs comes from work that was done but never priced. Before you send a number, make sure these are either included on purpose or excluded in writing:
Put the scope in writing, then hold to it
On a construction site, conditions change. The general contractor runs late, another trade re-dirties a finished room, the scope creeps. The protection against all of it is a clear written scope and a willingness to use change orders when reality differs from the bid.
Spell out exactly which phases and areas you are cleaning, what is excluded, and what your rate is for additional work. When the site is not ready or the scope expands, document it and issue a change order rather than absorbing the cost. This is standard practice on construction projects, and contractors expect it from professionals.
Software makes this less of a headache. With Pillar, an approved estimate converts into a job, multi-day work can be scheduled as separate appointments, and you can issue revised estimates and change orders as conditions shift, with a clear record of what was agreed. See how estimates and change orders work.
Track actual hours to sharpen your next bid
Your first few post-construction bids are educated guesses. They get accurate when you compare what you estimated against what the job actually took. If a 4,000-square-foot final clean you bid at 24 hours took 32, your next bid for a similar site should reflect that.
Have your crews clock in and out against the job so you capture real hours. Over a handful of jobs, you will dial in your production rates for the kinds of sites you take on. At that point your pricing stops being a guess and becomes a record. See time tracking in Pillar.
Price it like the specialty work it is
Post-construction cleaning rewards the companies that treat it as its own discipline. Walk every site, price from hours, put the scope in writing, and learn from your actuals. Do that and it becomes some of the most profitable work on your schedule. Start with the calculator to get a defensible number, then refine it on the walkthrough.