Why demolition jobs are hard to price
- Debris adds up fast. Material takes up more room once it's torn out than it did in the wall.
- Disposal costs vary. Dumpster sizes, weight limits and dump fees change from job to job.
- Hidden conditions. Rot, old wiring, extra layers or water damage show up after you open things up.
- Protection and cleanup. Dust barriers, floor protection and final sweep take real time.
How Trades HQ helps demolition and hauling contractors
- Ready-made demo items in your Price Book, like 10, 20 and 30 yard dumpster rentals, haul-off loads, dump fees, demo bags, plastic sheeting and floor protection. Add your prices once and reuse them.
- Change orders for hidden conditions you find during the tear-out, approved by the customer before you bill.
- Bid work out to other subs, for example an electrician to make wiring safe before demo.
- Proposals customers approve online, then one click to invoice.
- Deposits up front, so dumpster and disposal costs are covered before you start.
- Live job profit, so you see when extra loads are eating your margin.
A demo estimate, step by step
- Walk the job and list everything that's coming out.
- Estimate the debris and pick a dumpster size, or count truck loads.
- Add dump fees, and check your hauler's weight limits.
- Add protection: plastic sheeting, dust barriers and floor protection.
- Estimate labor hours for tear-out, loading and cleanup.
- Add permits if your area requires them, then your overhead and profit.
Example checklist for a kitchen tear-out (no prices; use your own):
| Line | Notes |
|---|---|
| Protection | Plastic sheeting, dust barrier, floor protection |
| Cabinet and countertop removal | Labor hours |
| Flooring removal | Tile takes longer than vinyl |
| Drywall removal | If walls are opened |
| Dumpster rental | Size by your debris estimate |
| Dump fees or overweight charges | Check your hauler's limits |
| Final cleanup | Labor hours |
Older homes can have lead paint or asbestos. Federal lead-safe rules apply to many homes built before 1978, so check the rules in your area before you start.
Pricing tip: Price every haul-off load and dump fee as its own line, so an extra load is a change order instead of lost profit. And remember that markup and margin aren't the same number: a 20% margin needs a 25% markup. The Estimating Basics guide walks through the math, and the free markup and margin calculator does it for you.
