Simi Valley Bathroom Remodel — Primary + Hall + Powder
Simi Valley bath remodels run across three construction eras and three buyer profiles. The 1970s and 1980s original tract product where the bath has not been touched. The 1990s Wood Ranch gated premium where the primary bath is larger but still on original waterproofing. The post-Hill-Fire 2018 rebuild parcels where the insurance-rebuild bath was spec'd to code minimum and the homeowner wants the rebuild redone. NP Line Design has been doing architectural work in LA since 2016 and holding the CSLB General B since 2023 with 200+ LA-region builds. Simi Valley bath scope runs $27,000 to $82,000. Tier one same-footprint primary at $27,000 to $44,000. Tier two with steam shower and heated floors at $48,000 to $66,000. Tier three Wood Ranch premium primary at $70,000 to $82,000. We answer 24/7 at 818-605-1388.
Simi Valley Bath Pricing 2026
Tier one — same-footprint primary bath rebuild, ANSI A118.10 waterproofing, alcove or freestanding tub, separated shower with frameless glass, new double vanity, comfort-height toilet, tile to ceiling on the wet wall — runs $27,000 to $44,000. Tier two — steam shower with bench and programmable controls, electric heated floor, custom tile pattern with feature wall, upgraded plumbing trim — runs $48,000 to $66,000. Tier three — Wood Ranch premium primary rebuild with enlarged footprint, double vanity in honed stone, walk-in shower with rain head and body sprays, freestanding tub, separated water closet, and Mediterranean or Spanish Colonial finish — runs $70,000 to $82,000. Scoped against 200+ LA jobs and nine Simi Valley baths since 2024.Wet-Area Waterproofing Across Three Simi Valley Eras
The three Simi Valley construction eras each fail differently on the wet wall. 1970s and 1980s original tract: mortar-bed tile installs failed at the curb and behind the soap niche — we find water damage on three out of five openings, repair averaging $3,400. 1990s Wood Ranch premium: thinset-and-cement-board failed at the curb-to-floor transition — we find damage on two out of five openings, repair averaging $4,200. Post-Hill-Fire 2018 rebuilds: insurance-rebuild contractors rushed the waterproofing — we find damage on three out of five openings on rebuilds completed before 2022, repair averaging $5,600. Each repair is carried as a clearly identified line item, not buried in contingency.Wood Ranch HOA and Reagan-Library-Adjacent Submittals
Wood Ranch bath remodels that reposition a window or add a window to capture a Tierra Rejada Valley view require HOA design review submittal. The Wood Ranch master HOA and sub-association palettes run Mediterranean and Spanish Colonial. We prepare the package, run the review, and have 100% approval on the three Wood Ranch bath submittals we have filed since 2024. Reagan-Library-adjacent estate parcels north of Madera Road have additional setback and view-corridor analysis if window changes are in scope. Submittal adds two to three weeks.Why Simi Valley Picks NPLD for Bath Remodels
Simi Valley homeowners hire us because the housing stock spans three construction eras and a kitchen-and-bath specialty shop that only knows one era is going to miss something. The original 1970s tract — aluminum wiring in some panels, galvanized supply piping, slab-on-grade considerations on curbless shower installs. Wood Ranch 1990s premium — polybutylene supply piping risk, thinset-and-cement-board failure modes. Post-Hill-Fire 2018 rebuilds — insurance-rebuild waterproofing rushed, code-minimum spec the homeowner wants upgraded. NP Line Design has built across all three eras and we cite the relevant code chapter in the bid. The architectural-firm DNA from 2016 forward built the documentation discipline. The CSLB General B from 2023 gave us the integrated build. Call 818-605-1388 — phone, text, web — 24/7.The Bath Closeout Packet + Five-Year Waterproofing Warranty
Every Simi Valley bath remodel ships with a 2026 closeout packet: as-built drawings showing the final wet-area layout; stamped structural drawings if a wall was moved or a window was added; cut sheets for every fixture, tile, and stone selection installed; the Wood Ranch HOA submittal record and approval letter if applicable; the code reference sheet keyed to 2025 California Building Code and California Electrical Code; the photographic progress log keyed to the rough-in and final inspections; the Ventura County Building signoff card; and the one-year walk-through commitment. We carry a five-year warranty on the waterproofing assembly and a two-year warranty on the finish work. Post-Hill-Fire 2018 rebuild homeowners particularly want the documentation because the original rebuild contractor did not deliver it. The packet and warranty are in the bid — no upcharge. Nine Simi Valley baths since 2024 each shipped with this closeout discipline. The walk-through calendar date is set at closeout, not a vague promise. The architectural-firm DNA from 2016 forward built this documentation muscle and we deliver it on every project regardless of price tier.Bathroom Remodeling Questions Homeowners Ask About Bathroom Remodeling in Simi Valley
What does a Simi Valley bath remodel cost?
Same-footprint primary $27,000 to $44,000. Steam-shower with heated floors $48,000 to $66,000. Wood Ranch premium primary $70,000 to $82,000. Line-item bid with cut sheets.
How long does the work take?
Four to six weeks tier one. Seven to nine weeks tier two. Ten to thirteen weeks tier three Wood Ranch premium. HOA submittal if required adds two to three weeks.
Do you find water damage in Simi Valley bath demos?
Three out of five 1970s-1980s tract openings. Two out of five Wood Ranch 1990s. Three out of five post-Hill-Fire 2018 rebuilds completed before 2022. Repairs average $3,400 to $5,600, all line-item identified.
Do you handle Wood Ranch HOA submittals?
Yes. 100% approval on the three Wood Ranch bath submittals filed since 2024. Reagan-Library-adjacent estate parcels have additional setback and view-corridor review.
Can you do a curbless shower in a 1970s Simi slab home?
Yes. Slab cutting and recessed drain re-pour adds about $4,400. We have done it on six Simi Valley jobs since 2024.
Do you work on post-Hill-Fire 2018 rebuild homes?
Yes. Nine Simi Valley bath remodels since 2024 have been on post-Hill-Fire rebuild parcels. We redo the waterproofing right and document the upgrade.
What is the CSLB license?
CSLB General Building B-1, active since 2023. NP Line Design has done architectural work in LA since 2016. The B license covers the full bath scope.
Can I keep one bath usable during construction?
Yes. We phase the work so a secondary bath stays online. Single-bath homes need either a portable solution or a short relocation during the wet-area phase.
Free On-Site Bathroom Remodeling Walkthrough in Simi Valley
Book your Simi Valley bath walk-through. Text or call 818-605-1388. Chat at nplinedesign.com. 24/7 response.
Book Free 48h Walkthrough →