Fast, Reliable Bathroom Remodeling Across Bloomington
A bathroom remodel in Bloomington typically runs $18,000 – $42,000 for a full hall bath and $28,000 – $65,000 for a primary bath, depending on whether you’re moving plumbing, upgrading a septic-rated fixture count, or dealing with unpermitted work discovered during plan check. We complete most Bloomington remodels in 3 – 6 weeks, though projects on septic or well systems can take longer because county paperwork runs on its own clock. If you’re planning a bathroom remodel in Bloomington, call (866) 538-0916 to get scoped before you spend anything.

We know the unincorporated side of San Bernardino County well. Bloomington parcels run large, septic-heavy, and county-permitted, which changes how a bathroom remodel gets priced, sequenced, and approved. Alan Pritchard built Harvest ADU Builders around exactly this kind of work: full interior finishing on properties where the land is generous but the paperwork isn’t. We handle the tile, the fixture, the venting, and the county correspondence, so the job doesn’t stall in plan check.
Why Harvest ADU Builders Is Bloomington’s Preferred Bathroom Remodeling Company
Most of the bathroom remodels we take on in Bloomington are part of a larger ADU project or a detached garage conversion, because that’s what the housing stock here calls for. Post-war ranches and 1960s-80s tract homes on half-acre lots usually have room for a detached unit, and the bathroom inside that unit is where we come in. Our Bathroom Remodeling team works inside new ADUs and existing homes alike, which means we’re already familiar with the county’s fixture-count rules, septic capacity triggers, and unpermitted-addition surprises that a city-based remodeler never sees coming.
Alan Pritchard has built the company around a specific promise: we scope the permit path before we quote the tile. In Bloomington, that means checking whether the parcel is on septic or sewer, whether the existing electrical panel has capacity for a humidity-sensing exhaust fan, and whether any prior owner added square footage without pulling permits. We’ve had Bloomington clients lose weeks because they filed with a city that doesn’t govern them. We stop that before it starts.
Our Bloomington customers call us when they need a bathroom remodel tied to a rental-income ADU or a multigenerational living setup. The math is different on a half-acre lot off Cedar Avenue than it is in a tight Rialto tract. We quote accordingly, with line items for septic review, panel upgrades, and vent reroutes when they’re actually required, not as surprise change orders mid-job.
Our Bathroom Remodeling Services in Bloomington
We do full bathroom remodels, not quick tub swaps. That distinction matters in Bloomington because adding or relocating any plumbing fixture on a septic system can trigger a county capacity review. We scope that before demolition starts, not after the crew is standing in a hole.
Hall Bathroom Remodeling
Hall baths in Bloomington ranches are usually 40 – 60 square feet, often original to the 1960s or 1970s. We reuse the existing footprint where it makes sense, replace cast-iron drains with ABS, and upgrade to a sealed shower enclosure that handles Inland Empire hard water without staining the way tile-and-grout showers do. If your hall bath shares a wall with a new ADU, we’ll coordinate both scopes so the plumbing rough-in happens once.

Primary Bathroom Remodeling
Primary baths here tend to be modest by newer-city standards, which means many Bloomington owners are expanding into an adjacent bedroom or closet to get a walk-in shower and double vanity. That expansion adds fixtures, and added fixtures add septic review. Before we quote, we pull the parcel’s sewer or septic record and count current fixtures against the system’s rated capacity. If the numbers don’t work, we’ll tell you during the estimate, not during framing.

ADU and Garage Conversion Bathrooms
Bathrooms inside detached ADUs and garage conversions are our primary work. The fixture count, the vent route, and the drain slope all get designed around the county’s setback rules and the existing septic distribution lines. We’ve built three-quarter baths in Tuff Shed conversions and full bathrooms in Dvele and Plant Prefab units run through Bloomington’s county process. The bathroom is not an afterthought; it’s often the part of the project that determines whether the ADU pencils out as a rental.

Accessible and Aging-in-Place Bathrooms
Multigenerational living is common on Bloomington’s larger lots, where an ADU with a curbless shower and a 36-inch door makes more sense than remodeling the main house. We do zero-threshold pans, reinforced blocking for grab bars, and handheld shower setups that don’t look institutional. These are the bathrooms that keep a parent or an adult child on the property long-term, which is the point of the bigger lot.

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
We install and service bathroom fixtures and finishes that hold up to Bloomington’s hard water and summer heat. We work regularly with Delta, Moen, and Kohler rough-in valves, Schluter waterproofing systems, and James Hardie backer board on wet walls. When we finish a bathroom in a Dvele or Mighty Buildings ADU, we use the brand’s specified fixtures and bring the same in-house crew to do the trim-out, caulking, and final inspection. For Bloomington customers, that means no coordinating a third-party plumber or tile setter. One crew, one schedule, one point of contact.
Common Bathroom Remodeling Problems We See in Bloomington Homes
- Septic capacity surprises. The single biggest stall in Bloomington bathroom remodels is the county’s septic capacity review. Add a shower or a second lavatory to a system rated for six fixtures, and plan check stops until you either expand the system or remove the fixture. We run the fixture count before we quote, so this doesn’t become a $15,000 mid-project surprise.
- Unpermitted additions with illegal venting. Bloomington’s generous lots invited decades of room additions, sunrooms, and enclosed patios built without permits. The bathroom vent often terminates in an attic or joist bay, which fails inspection. We recently remodeled a hall bath in a 1960s ranch on a half-acre lot off Cedar Avenue where the plumbing vented through a barely-legal unpermitted addition; our crew re-routed the vent and upgraded the electrical panel to handle a new exhaust fan before we could set the tile, and the county required a septic capacity letter because the added shower put the system over its rated fixture count.
- Older panels that can’t carry the load. Many Bloomington homes still run original 100-amp panels. A new humidity-sensing fan, heated floor, or even a second GFCI circuit can push an existing panel past capacity. We include a panel assessment in every bathroom remodel quote and fold the upgrade in as a line item when it’s required, which on older Bloomington homes it often is.
- Long material haul schedules. Bloomington sits far enough from major tile and plumbing suppliers that last-minute vanity or valve orders blow schedules. We stage materials from our Orange County yard and confirm fixture availability before we open walls. In our experience, a two-week lead time on a specific valve trim can become a three-week delay in Bloomington if it isn’t ordered the day the permit is submitted.
Pricing for Bathroom Remodeling in Bloomington, CA
A hall bathroom remodel in Bloomington typically runs $18,000 – $32,000, while a primary bathroom with a walk-in shower and double vanity lands between $30,000 and $58,000. ADU bathroom build-outs inside a new detached unit run $14,000 – $24,000 because the plumbing rough-in happens with the ADU build, not through an existing slab.
What moves the number: (1) whether the home is on septic or sewer, and whether your fixture count triggers a septic capacity review; (2) whether we’re working on a slab foundation or raised wood floor, which changes drain rerouting costs; (3) whether the panel needs an upgrade; and (4) whether unpermitted work from a prior owner has to be corrected before the county signs off. We provide a written, line-item estimate before any work starts and we don’t use change orders to close the gap. Call (866) 538-0916 to schedule your free estimate. We’ll bring the fixture-count worksheet and the septic map.
We Also Serve Cities Near Bloomington
Our crews run jobs through Bloomington, Fontana, Rialto, Glen Avon, and Pedley. If you’re on the edge of Bloomington and the city line runs through your lot, we’ll confirm which jurisdiction actually governs your parcel before we file. That’s the difference between a permit that clears in three weeks and one that gets rejected in three days. Learn more about Bathroom Remodeling in Bloomington and what we do across the surrounding area.
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
Yes, and in Bloomington the permit comes from San Bernardino County, not any city. Because Bloomington is unincorporated, the county plan check is the only plan check. If you add, relocate, or replace plumbing fixtures, you’ll need a plumbing permit, and if the home is on septic, the added fixture count triggers a septic capacity review before the county approves anything. We handle the county submittal, the corrections, and the inspection scheduling. Call (866) 538-0916 and we’ll walk the permit path with you before you spend a dollar on tile.
Your septic system’s rated capacity is tied to the number of plumbing fixtures the county originally approved. Add a second shower, a soaker tub, or an extra lavatory and you may exceed that rating, which means the county requires either a septic capacity letter from a licensed designer or a system expansion before the remodel can proceed. We run this check on every Bloomington remodel quote. It costs nothing up front and it prevents a $12,000 – $25,000 septic expansion from appearing mid-project without warning.
Yes, and that’s most of what we do. Bloomington’s half-acre lots make detached ADUs and garage conversions the natural move, and every one of them needs a bathroom. We handle the bathroom inside the ADU build as one scope: rough-in, waterproofing, tile, fixtures, and final inspection. Whether the ADU is site-built or a Dvele, Plant Prefab, Mighty Buildings, or Boxabl unit, the bathroom goes in until it’s done, not until the shell’s up and you’re left to find your own plumber. Call (866) 538-0916 to talk through your ADU and the bathroom it needs.
Expect the county to catch it during plan check and require correction before your remodel permit gets issued. That could mean re-venting a bathroom fan that currently terminates in the attic, fire-blocking a wall that was opened without a permit, or bringing an old addition up to current egress and electrical standards. We’ve corrected unpermitted work on Bloomington remodels more times than we can count. We’ll identify it during the site visit and price the correction into the original estimate, so it doesn’t show up as a surprise later.
Bloomington’s hard water and extreme summer heat mean we avoid materials that fail here. Grout-and-tile shower floors stain and degrade faster with the mineral content in local water, so we recommend solid-surface or low-porosity porcelain shower pans. Exhaust fans need to be sized for actual humidity load, not builder minimums, because the Inland Empire’s summer heat pushes moisture into wall cavities and ceilings. We also avoid vinyl-backed wall panels that warp in unconditioned spaces, which matters for bathrooms in detached ADUs and garage conversions that don’t get central cooling. Call (866) 538-0916 for a materials recommendation specific to your Bloomington home.
Key Takeaways for Bloomington Bathroom Remodeling
- Bloomington is unincorporated San Bernardino County; your bathroom permit goes through county plan check, not a city office.
- On septic? Any added fixture triggers a capacity review. We run that check before quoting.
- Typical hall bath remodel: $18,000 – $32,000. Primary bath: $30,000 – $58,000. ADU bathroom: $14,000 – $24,000.
- Unpermitted prior work is common on Bloomington’s older ranches. We find it during the estimate, not after demo.
- Every estimate is written, line-itemed, and scoped against the county’s fixture-count and septic rules. No change-order ambush.
Planning a bathroom remodel in Bloomington? Call (866) 538-0916 to schedule your free estimate. We’ll bring a fixture-count worksheet, check your septic or sewer record, and give you a written scope before you spend anything. Alan Pritchard and the Harvest ADU Builders team know how Bloomington’s county process works, and we’ll quote it honestly the first time.
Written by Alan Pritchard, Owner at Harvest ADU Builders, serving Bloomington and the surrounding San Bernardino County area.