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Demo Phase: What to Expect Day-by-Day LA Renovation (2026)

Last Updated: May 10, 2026 · Reviewed by Netanel Presman, CSLB #1105249

Demo day is the most honest day of any renovation. Once cabinets, fixtures, and finishes come out, the truth about your house is exposed: rotted joists, hidden plumbing problems, knob-and-tube wiring, asbestos in popcorn ceilings, water damage you didn't know about. Most LA contractors handle these discoveries as change orders. NPLD photo-documents everything and prices them against the contract's hidden-conditions allowance. This page maps demo phase day-by-day.

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Quick Answer · Total Duration: 1-10 days (varies by scope)

Demo phase runs 1-10 days depending on scope. Activities: dust containment (ZipWall + HEPA), floor + landscape protection, full or partial demo to studs/sheathing, photo audit of hidden conditions, asbestos test if pre-1980, dumpster placement + haul. NPLD's hidden-conditions discovery: documented + priced against allowance, never hidden change orders.

Detailed Timeline — Week-by-Week / Phase-by-Phase

Below is the calendar-locked timeline NPLD uses on real LA construction projects. Each row covers the period, the phase, activities, NPLD's checkpoint to verify completion, and one common mistake we see other LA contractors make.

Period	Phase	Activities	NPLD Checkpoint	What Most LA Contractors Get Wrong
Day 0 (Pre)	Site Prep + Containment	ZipWall plastic containment at every interior threshold to non-work area, Ram Board floor protection, landscape protection (plywood + tarps), HVAC vents sealed, HEPA-filtered negative-pressure air machine installed.	Containment + protection complete + photo-documented.	Skipping containment to save 4-6 hours — costs $3-8K in HVAC cleaning + finish damage.
Day 1	Dumpster + Equipment Staging	Dumpster delivered to driveway (15-30 yd typical), demo tools staged, neighbor courtesy notice posted. Pre-1980 homes: asbestos test samples taken if not pre-tested.	Equipment ready. Asbestos samples to lab.	No dumpster on Day 1 — debris piles up + delays demo.
Day 1-2 (Kitchen) or Day 1-5 (Full Reno)	Surface Demo	Cabinets, fixtures, appliances, countertops, mirrors, lighting removed (typically intact for resale or donation if requested). Toilet, vanity, shower glass removed if bathroom in scope.	Surface finishes removed. Reusable items preserved.	Smashing cabinets that could be donated/sold — wastes $1-5K value.
Day 2-3 (Kitchen) or Day 3-7 (Full Reno)	Drywall + Flooring Demo	Drywall removed to studs (or to ceiling for partial demo), flooring removed to subfloor, baseboards removed. Walls and floor systems exposed for inspection.	Walls + floors exposed. Photo audit begins.	Removing more than scope requires — increases dumpster + restoration costs.
Day 3 (Kitchen) or Day 5-8 (Full Reno)	Photo Audit of Hidden Conditions	Photographer (project manager) walks every exposed surface: framing, plumbing, electrical, subfloor, ceiling joists. Photos uploaded to project file + reviewed with homeowner.	Hidden conditions documented + priced against contract allowance.	Skipping photo audit — hidden conditions become disputed change orders later.
Day 3-4 (Kitchen) or Day 7-10 (Full Reno)	Mechanical Demo + Final Clean	Plumbing fixtures + lines disconnected, electrical circuits dropped (kept hot only where temp lighting/power required), HVAC ducting capped, gas line shut at meter. Final demo cleaning + dust mitigation pass.	Project ready for rough-in phase.	Leaving live wires/gas — code violation + safety hazard.
Day 4-5 (Kitchen) or Day 10 (Full Reno)	Dumpster Haul + Permit Inspection	Dumpster hauled. Project staged for next phase. LADBS demo inspection if required (full home renos).	Demo phase complete + inspection passed.	Skipping LADBS demo inspection on permitted scope — auto-fail next inspection.

Key Milestones + Netanel's Notes

Hidden Conditions — Where Honest Contracts Earn Their Keep

Pre-1980 LA homes have hidden conditions 80% of the time: rotted subfloor at bathrooms, knob-and-tube wiring in walls, asbestos in popcorn ceilings or pipe insulation, hidden plumbing leaks, termite damage in framing. Each one is a 4-figure repair. Most contractors' "fixed-price" contracts have an asterisk that lets them charge hourly for these. NPLD's fixed-price contracts pre-price the most common conditions: $400 asbestos test, $8-12/sf rotted subfloor, $1,200-$4,000 knob-and-tube rewire per zone. You see every potential before signing. Surprises are genuinely rare.

"Hidden conditions aren't surprises to me. They're predictable. What's surprising is contractors who pretend they're not." — Netanel Presman, Owner + GC, NP Line Design

Asbestos — The Pre-1980 LA Reality

Most LA homes built before 1980 have asbestos somewhere: popcorn ceilings (sprayed acoustic), pipe insulation (white wrap around hot-water lines), floor tile mastic (under linoleum), HVAC duct wrap. Cutting/sanding asbestos releases fibers — Class A regulated under OSHA + EPA + South Coast AQMD. Testing is $400-$800 (lab samples from 3-6 locations). Abatement (if positive) is $2-$15K depending on scope. NPLD tests every pre-1980 home pre-demo. Most homeowners don't know their house has asbestos until we find it.

"If your house was built before 1980 and your contractor doesn't asbestos-test before demo, find a new contractor." — Netanel Presman, Owner + GC, NP Line Design

What Most LA Contractors Get Wrong

These are the patterns we see again and again when LA homeowners come to us after a failed project with another contractor. Each one is preventable — and NPLD prevents them.

⚠️ The 'No Dust Containment' Speed Play

Some contractors skip dust containment to save 4-6 hours of setup. Result: drywall dust + demo debris coats every surface in the home (HVAC ducts, furniture, electronics). Cost of HVAC duct cleaning + deep clean: $3-$8K. Damage to electronics + soft goods: $2-$10K.

NPLD's Solution:

NPLD installs ZipWall containment, HEPA-filtered negative-pressure machine, Ram Board floor protection, and HVAC vent sealing on Day 0. Cost: $400-$1,200. Saves $5-$18K + protects homeowner's belongings.

⚠️ The 'Discover It During Build' Hidden-Conditions Trap

Contractors who don't photo-audit during demo will surface hidden conditions as change orders mid-build. By then, the homeowner is committed + has no leverage. Change-order prices can be 200-400% of fair market repair cost.

NPLD's Solution:

NPLD photo-audits hidden conditions on Day 3 of demo. Homeowner sees the issue + the contracted price + the change-order cost (if outside allowance). Decision is made transparently.

How NPLD Delivers This — 7 Steps

Step 1 — Site prep + dust containmentZipWall + HEPA + floor + landscape protection.
Step 2 — Dumpster + equipment staging + asbestos testDemo tools staged. Asbestos samples to lab.
Step 3 — Surface demoCabinets, fixtures, appliances, countertops removed.
Step 4 — Drywall + flooring demoDown to studs and subfloor.
Step 5 — Photo audit of hidden conditionsDocument framing, plumbing, electrical, subfloor.
Step 6 — Mechanical demo + final cleanPlumbing, electrical, HVAC, gas disconnected.
Step 7 — Dumpster haul + LADBS demo inspectionProject staged for rough-in phase.

Ready to Start Your Project?

Tell us about your demo phase project. We'll schedule a free in-home consultation within 5 business days across LA County, give you a fixed-price proposal within 48 hours of the visit, and you decide if NP Line Design is the right fit. CSLB License #1105249.

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Frequently Asked Questions

How long does demo phase take?

Kitchen remodel: 1-3 days. Bathroom remodel: 1-2 days. Full home renovation: 5-10 days. ADU/new construction has its own demo if existing structure is being removed (3-7 days for a small SFR teardown).

Will demo damage my house?

Properly-managed demo damages only what's intended for removal. NPLD's containment (ZipWall + HEPA) protects non-work areas. Landscape protection prevents plant damage. Floor protection prevents traffic damage to areas being preserved.

Do I need to move out during demo?

For kitchen remodel: usually no, but plan for 1-2 days of significant noise/dust. For bathroom remodel: usually no. For full home renovation: yes, move out before demo Day 1 and return at substantial completion.

What about asbestos in my home?

NPLD asbestos-tests every pre-1980 home pre-demo: $400-$800. If positive, abatement is $2-$15K depending on scope. Abatement must be done by a licensed asbestos contractor before standard demo proceeds. NPLD coordinates the abatement.

Can I salvage cabinets/fixtures during demo?

Yes — if you flag it pre-demo. NPLD can remove cabinets, fixtures, appliances intact for resale (Habitat for Humanity ReStore, Facebook Marketplace, eBay) or donation. We bill ~$200-$800 for careful removal vs. smash.

What happens if hidden conditions are found?

NPLD photo-documents the condition + costs it against contract's hidden-conditions allowance. If within allowance: no change to contract. If outside allowance: change order presented to homeowner with photos + cost + recommended remediation. Decision is yours.

Will neighbors complain about the noise?

Possibly — demo is loud. NPLD does proactive neighbor outreach 3-7 days before demo: introduction note, schedule, direct contact for issues. Most neighbors tolerate work during code work hours (typically 8am-5pm weekdays in LA).

Pre-Construction Phase Rough-In Phase: MEP Explained Kitchen Remodel Timeline Full Home Renovation Timeline Free Renovation Estimate

Netanel Presman

Founder · CSLB #1105249 · 200+ Projects

“Standard LADBS plan check for an LA home renovation is 8-16 weeks. Expedited review costs $500-$2,000 extra and runs 10-20 business days. Hillside, coastal, VHFHSZ, and historic-overlay properties add 4-12 more weeks. The single most common cause of plan-check delay we see is incomplete soil reports — LADBS has been requiring them for almost any foundation work since 2024, and most submittals still miss it.”

Pro Tip

Demo phase looks straightforward — pull out cabinets, rip out drywall, dispose of debris. Reality: 30% of LA demos uncover lead paint (pre-1978 homes — RRP-certified abatement adds $2K-$8K), asbestos (1950s-1980s flooring/insulation — AQMD certified abatement adds $5K-$25K), or non-permitted prior work that must be brought up to code. Anyone who quotes demo without an asbestos test on pre-1980 homes is gambling with your money. We test before demo. We're EPA RRP certified. Surprise-free demo = on-time framing inspection.

Author & Contractor of Record

Netanel Presman

Founder & Licensed General Contractor · Since 2016

CSLB #1105249Licensed B-General BBB A+ AccreditedZero complaints

EPA RRP CertifiedPre-1978 lead-safe

Bonded & InsuredGL + WC on every job

Page last updated: May 11, 2026Published by NP Line Design Inc

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