Fast, Reliable Bathroom Remodeling Across Bloomington
Bathroom remodeling in Bloomington runs $14,000 to $32,000 for a typical full gut-and-replace, with smaller refreshes starting around $7,500 and detached ADU bathroom builds landing between $22,000 and $45,000 depending on septic and well setbacks. We’re a Tustin-based contractor that spends a lot of time on Bloomington jobs, mostly on unincorporated county parcels where permitting rules trip up homeowners who assumed city paperwork applied. If you’re planning a bathroom remodel on a Bloomington lot, call us at (855) 617-6356 and we’ll tell you straight what your parcel actually requires before you spend a dollar on tile.
Why Holloway ADU Builders Is Bloomington’s Preferred Bathroom Remodeling Company
Bloomington is not Fontana or Rialto, and the biggest difference isn’t just the ZIP code. A meaningful share of Bloomington lots sit in unincorporated San Bernardino County jurisdiction, which means the permit on your bathroom remodel comes from the county, not from a city building department. That single fact changes plan review timelines, inspection scheduling, and often the way your waste line gets routed. Neil Trescott, who leads our team, has walked enough of these county parcels to know what gets kicked back and what sails through.
Our Bloomington customers keep calling us back because we scope the job before quoting. On unincorporated parcels we check the well and septic setbacks first, because a bathroom wall located too close to a septic lateral can cost thousands to re-route after rough-in. That’s the kind of foresight you get when the contractor knows the difference between Bloomington’s county parcels and its city-jurisdiction streets. Call (855) 617-6356 and tell us your cross streets. We’ll know which rulebook applies.
Response time to Bloomington is straightforward: we schedule site visits within five to seven business days, and our crews come up from Tustin with all the material we need for a full day’s work. No second trips for forgotten fittings.
Our Bathroom Remodeling Services in Bloomington
Detached ADU Bathroom Rough-In and Finish
This is the core of what we do on Bloomington’s big-lot properties. A detached ADU bathroom means running a new waste line from the unit to either the main house lateral or a separate septic connection. On San Bernardino County parcels, the county wants to see that connection in the permit drawings, and they’ll check setback distances from the septic tank and leach lines before they approve anything. We pull the county permit, schedule the inspection, and handle the rough-in, venting, waterproofing, and finish work under one contract. For Bloomington homeowners using a prefab or modular unit from brands like Cover or Dvele, we can coordinate the bathroom finish after the unit is set.
Garage Conversion Bathroom Plumbing and Venting
Plenty of Bloomington’s mid-century ranch homes have detached garages sitting forty or fifty feet from the main house. Converting part of that garage into a bathroom is one of the least expensive ways to add a usable bath without building new square footage. The plumbing is the tricky part: the slab may not be deep enough for a standard P-trap, so the drain line sometimes runs along the exterior wall instead of through the floor. Venting in a Bloomington garage conversion needs real thought too, because an uninsulated garage roof heats up hard in Inland Empire summers, and a cheap vent fan will just recirculate that hot dusty air back into the shower. We specify Panasonic WhisperGreen fans and James Hardie backer board on these jobs because they hold up to the heat swings.
Outbuilding and Shop Bathroom Installation
Bloomington has a surprising number of shops and outbuildings on residential lots. Some are old horse barns, some are metal buildings from the 80s and 90s, and a lot of them sit on slabs that were never intended for plumbing. Putting a bathroom in one of these structures usually means trenching from the nearest waste line, which can be a long run on a half-acre lot. Equipment access matters here: a mini excavator can reach most Bloomington backyards, but if your lot has narrow side yards or old trees blocking the path, we hand-dig or use a compact trencher. County inspectors in San Bernardino want to see the trench before it’s backfilled, so we time that inspection carefully to avoid leaving an open ditch longer than necessary.
Full Bathroom Gut and Replace in Primary Homes
Not every Bloomington bathroom remodel involves an ADU. The majority of the primary homes here are single-story stucco or ranch builds from the 1950s through the 1970s, and their bathrooms often have the same problems: failing galvanized supply lines, undersized exhaust vents, and water-damaged subfloor around the tub. We handle these as straightforward gut-and-finish jobs. Because these houses sit in the same hot, dry climate, we always check the existing venting and insulation before quoting, and we’ll match the finish level to the rest of the house rather than oversell you on fixtures that look out of place.
What happens when you call
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A real person answersNo phone trees — you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Bloomington
When you’re putting a bathroom into a manufactured or prefab ADU on a Bloomington lot, the brand of the unit matters less than how the bathroom is roughed in. We work with units from Cover, Dvele, and Mighty Buildings, among others, and we’ve learned which ones make bathroom finishing straightforward and which ones need custom plumbing adaptation. We keep common fittings, vent fans, and backer board in our Tustin yard, so a Bloomington job doesn’t stall waiting on a parts shipment. If you’re still deciding between a site-built ADU and a factory-built unit, that’s a conversation we can have with you before you commit, since we’re brand-agnostic and have no dealer margin pushing us toward one manufacturer.
Common Bathroom Remodeling Problems We See in Bloomington Homes
- County permit confusion. Homeowners pull a city of Bloomington permit and get told halfway through that their parcel is actually unincorporated San Bernardino County. The plan review resets, time gets added, and reinspection fees stack up. We verify jurisdiction before we draw anything.
- Septic setback surprises. A detached ADU bathroom planned sixty feet from the main house turns out to be twelve feet from a septic tank. The county flags it at rough-in. We check setback distances on day one.
- Undersized venting in low-use bathrooms. A bathroom that gets used on weekends still traps humid air after every shower. In Bloomington’s hot summers, that moisture turns into mildew fast. A proper CFM-rated fan with a timer is cheap insurance.
- Wind-driven dust getting into exhaust ducts. Bloomington gets dry Santa Ana winds that push fine dust through cheap dampers. We install backdraft dampers and seal the duct runs so dust doesn’t coat the back of your vanity cabinet.
Pricing for Bathroom Remodeling in Bloomington, CA
A cosmetic refresh, meaning new vanity, fixtures, paint, and lighting in an existing bathroom, typically runs $7,500 to $13,000 in Bloomington. A full gut and replace with new shower pan, tile, flooring, and plumbing updates lands between $14,000 and $32,000. Detached ADU bathroom buildouts run higher, from $22,000 to $45,000, mostly because of trenching distance, septic or sewer tie-in work, and county permit fees. Garage conversion bathrooms fall in the $12,000 to $20,000 range if the slab doesn’t need cutting. These are Bloomington-specific ranges, not statewide averages. The county permit itself is a real cost, and plan review times on unincorporated parcels can stretch a project by two to four weeks. Call (855) 617-6356 for a written quote. Estimates are free, and we’ll tell you if your lot is county or city jurisdiction before we talk numbers.
We Also Serve Cities Near Bloomington
Our crews cover Bloomington and the surrounding area, including Fontana, Rialto, Glen Avon, and Pedley. If you’re just outside Bloomington in any of those communities, the same permitting and site-access rules often apply. Read about our Bathroom Remodeling work across the Inland Empire, or learn more about Bathroom Remodeling in Bloomington specifically.
Serving Bloomington, CA — Our Local Coverage Area
We’re based in the Bloomington area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Bathroom Remodeling in Bloomington
If your Bloomington property sits in unincorporated San Bernardino County, the county issues the permit, not the city. You can check your parcel’s jurisdiction on the San Bernardino County assessor map using your Assessor’s Parcel Number. On county parcels, a bathroom remodel inside a detached ADU almost always requires a building permit and a plumbing permit. Call (855) 617-6356 and we’ll look up your parcel before you file anything.
San Bernardino County requires minimum setbacks between septic tanks, leach lines, wells, and any structure with plumbing. If your bathroom wall would sit too close to a septic lateral or wellhead, the county will reject the plan. The fix is usually re-routing the drain line or shifting the bathroom footprint, which is far cheaper to do on paper than after rough-in. We verify setbacks on every Bloomington ADU bathroom project before we quote.
A Panasonic WhisperGreen or equivalent CFM-rated fan with a backdraft damper handles Bloomington’s heat and dust better than a builder-grade unit. The fan needs to run on a timer or humidity sensor, not just a switch, because a low-use ADU bathroom won’t get enough air movement on its own. We also seal the duct run so wind-driven dust doesn’t blow back through the grille.
Often yes. If the existing slab has enough depth, we can cut a narrow trench for the waste line and re-pour just that section. If the slab is too thin, we run the drain along the exterior wall and box it in, which avoids structural work entirely. On a recent job off Cedar Street in Bloomington, the septic system sat too close to the new bathroom wall under county rules, so we re-routed the drain to the main house lateral instead and passed inspection without moving the septic. Call (855) 617-6356 and we’ll tell you which approach fits your garage.
Most Bloomington backyards can take a mini excavator, which speeds up trenching for a new waste line. Narrow side yards, mature trees, or buried utility lines can force hand-digging instead, which adds a day or two. We scope access on the first site visit and factor it into the timeline before we quote, so the schedule you get is the schedule that holds. Estimates are free at (855) 617-6356.
Call us at (855) 617-6356 to schedule your free bathroom remodeling estimate in Bloomington. Neil Trescott and our team will walk your lot, check your county or city jurisdiction, and give you a written line-item quote before any work begins.
Written by Neil Trescott, Owner at Holloway ADU Builders, serving Bloomington and the Inland Empire.