Your new home is finished, but the site is buried under drywall dust, nails, and concrete residue—and hiring the wrong cleanup crew can leave you with damage, incomplete work, or inflated bills. Vetting a post-construction cleaning company upfront saves money, time, and frustration. Here's what to watch for before you sign a contract.
They Won't Provide a Detailed Written Estimate
A reputable post-construction cleaning company will walk through your property, identify specific debris and finishes, and send a written estimate breaking down labor, equipment, and materials. If they quote you over the phone or give a vague per-square-foot price without inspecting the site, walk away.
Post-construction jobs vary wildly—a gut renovation requires different work than a kitchen remodel—and estimates should reflect that. Request at least two references and ask their past clients whether the final invoice matched the estimate.
They Lack Insurance or Won't Prove It
Accidents happen. A cleaner might damage freshly installed flooring, chip new cabinetry, or break a window while removing construction debris. Without general liability insurance, you're liable for repairs.
Ask for proof of coverage (a Certificate of Insurance, not a verbal promise) and verify it covers property damage. Most legitimate crews carry $1–2 million in general liability. Also confirm they have workers' compensation if they employ staff—this protects you if someone gets injured on your property.
No Mention of Hazardous Materials Handling
Post-construction sites often contain hazardous materials: silica dust, lead paint (in older homes), asbestos, and adhesive fumes. Credible companies know this and have protocols—they'll mention HEPA filtration, proper containment, or referrals to specialized hazmat crews when needed.
If they don't address safety concerns or dismiss them, they're cutting corners. A professional will ask about your home's age and previous renovations to identify potential hazards.
Unrealistic Pricing or Timelines
Post-construction cleaning isn't cheap. Expect $2,000–$8,000+ for a whole-home deep clean after major renovation, depending on square footage and debris volume. If a company quotes significantly below market or promises to finish a 3,000-square-foot home in a single day, they're either understaffing or underbidding to make profit on rush fees later.
Ask how many crew members they'll assign and what a realistic timeline looks like. A thorough job takes time—rushing leads to missed debris, dust settling into new finishes, and callbacks.
They Don't Use Specialized Equipment
Standard household vacuum cleaners and mops won't cut it. Look for companies that mention:
- HEPA-filter vacuums (capture fine dust particles)
- Pressure washers (for driveways, exterior brick, concrete)
- Dumpster rentals or licensed debris removal
- Commercial-grade dehumidifiers (especially after water-based cleanup)
- Scaffold access for high ceilings and hard-to-reach areas
If their truck shows up with basic tools, they're not equipped for the job.
Poor Communication or No Written Contract
Red flag: they're evasive about scheduling, don't return calls promptly, or resist putting details in writing. Post-construction cleaning requires clarity on scope, timeline, payment terms, and what happens if work is incomplete.
Your contract should specify:
- Exact areas to be cleaned (interior, exterior, garage, appliances, etc.)
- Final walkthrough procedure and punch-list process
- Payment schedule (deposit, final payment)
- Warranty period (usually 30–48 hours for touch-ups)
- Cancellation or delay terms
They Can't Handle Specialized Finishes
New homes have finishes that need care: sealed concrete, freshly stained wood, natural stone, prefinished hardwood. A cleaning crew unfamiliar with these materials might use aggressive chemicals or improper techniques that dull finishes or cause staining.
Ask whether they've worked with homes featuring your specific flooring, countertops, or fixtures. A company that educates you on what not to use demonstrates expertise.
No Track Record or References
Check Google reviews, the BBB, and contractor review sites. Call at least two past clients and ask: Did the company finish on time? Were there surprise charges? Would you hire them again?
Avoid companies with fewer than 10 reviews or mostly 2–3 star ratings. If they won't provide references, that's your answer.
Frequently Asked Questions
Q: Should I get multiple quotes, and how many? Yes—aim for three. This helps you spot outliers, understand market pricing, and assess professionalism. Most reputable companies won't charge for on-site estimates.
Q: What's the difference between a cleaning company and a debris removal company? Cleaning companies handle dust, interior finishes, and light surface cleanup. Debris removal hauls away large waste (lumber, drywall, concrete). You may need both, and good cleaning crews often have debris partnerships.
Q: Can I hire a general contractor's recommended cleaner, or should I vet independently? Vet independently. While contractor referrals can be solid, the contractor may prioritize speed over quality. Compare options and read reviews outside their network to ensure you're getting fair pricing and thorough work.
Compare trusted post-construction cleaning providers side-by-side on Mercoly to find the right fit for your project.