Fast, Reliable Bathroom Remodeling Across Bloomington
Bathroom remodeling in Bloomington runs $14,000 to $38,000 for a standard full gut, and $22,000 to $55,000 when the job involves an ADU bathroom tied to septic or county permit work. Most Bloomington projects take 3 to 6 weeks once permits clear, though unincorporated San Bernardino County review can add 2 to 8 weeks before demolition starts. We work throughout the 92316 ZIP, from lots off Cedar Street to homes along Slover Avenue and the older ranch neighborhoods near Bloomington High School. If you’re planning a bathroom remodel here, call (866) 730-4828 and we’ll walk you through what the county will actually require.
Why Bungalow ADU Builders Is Bloomington’s Preferred Bathroom Remodeling Company
Nate Calloway built Bungalow ADU Builders around a simple frustration: too many homeowners get handed off between a general contractor, a plumbing sub, and a finish carpenter, and nobody owns the result. That’s a real problem in Bloomington, where unincorporated county permitting and septic systems mean a bathroom remodel is rarely just swapping finishes. We handle the whole scope under one roof, from framing and waterproofing to the James Hardie details and the final grout line.
Our Bathroom Remodeling team knows the county’s expectations before we open a wall. We’ve worked on half-acre lots with legacy outbuildings, manufactured homes that need their bathrooms brought to current code, and detached ADUs where the existing plumbing ties into a septic system on its last legs. Bloomington homeowners call us because we don’t get surprised by a stop-work order, and we don’t leave a project sitting while a permit question lingers.
We serve Bloomington directly. No third-party crews, no rotating subs you meet for the first time on demo day. The estimator who walks your property stays with the project through final inspection.
Our Bathroom Remodeling Services in Bloomington
Full Bathroom Gut and Rebuild
A full gut in a 1960s Bloomington ranch often means pulling the subfloor, replacing cast-iron drain lines, and addressing the outdated venting the county inspector will flag. We quote these jobs with the plumbing work included, not buried as a change order. Most full rebuilds in the 92316 ZIP run $16,000 to $32,000 depending on fixture grade, tile scope, and what’s actually behind the walls.
ADU Bathroom Build-Outs
This is the work we do most in Bloomington. Whether you’re converting a detached garage, finishing a prefab unit from Boxabl or Plant Prefab, or building a site-set ADU, the bathroom is where the building permit gets complicated. We handle the county plumbing permit, the water conservation compliance, and the septic or sewer tie-in that decides whether the unit passes its final inspection.
Shower and Tub Replacement
Replacing a failing fiberglass tub in a manufactured home, or swapping a cramped stall shower for a curbless pan in a ranch house, are common Bloomington requests. We quote these with the floor repair included. A direct tub-to-shower conversion on a slab foundation typically lands between $8,000 and $14,000 here.
Water-Damage Bathroom Repairs
Older Bloomington homes with original venting and single-pane windows see humidity problems that eat drywall and warp framing. We find the source first, then rebuild. If the damage extends into the subfloor under a toilet, the repair scope jumps quickly, and we’ll show you exactly why before we cut a check any larger than the quote.
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 work with the brands Bloomington homeowners have already researched. For ADU bathroom interiors, we source from Dvele and Boxabl for prefab shower surrounds and modular walls that speed up finish time, and we use Tuff Shed when the project starts as a garage conversion or detached structure. James Hardie fiber-cement panels handle high-moisture areas and the hot, dry Bloomington summers without warping. None of these are exclusive agreements. Your layout, your plumbing situation, and your budget drive the material choice.
Common Bathroom Remodeling Problems We See in Bloomington Homes
- Legacy unpermitted structures. A surprising number of Bloomington lots have a bathroom added to a garage or workshop decades ago, with no county record. When that structure becomes part of an ADU remodel, the unpermitted work must be legalized before new work can be permitted. That adds weeks and requires opening walls we’d rather not have to.
- Septic system capacity surprises. Plenty of properties in 92316 run on septic, not city sewer. Adding a bathroom to an ADU means the county wants a percolation test and possibly a new or larger tank. We’ve seen a simple bathroom remodel turn into a septic replacement once the percolation numbers came back.
- Separate plumbing permits get skipped. The county requires a separate plumbing permit for bathroom remodels. Skip it, and the inspector will issue a stop-work order the moment they see an open wall with new drain lines. We pull the plumbing permit as part of the job, every time.
- Failed venting inspections. Bloomington homes built before modern ventilation codes often have bathroom fans venting into the attic or nowhere at all. The county catches it. Reworking the vent run costs less when it’s planned into the original quote than when it’s discovered mid-inspection.
Pricing for Bathroom Remodeling in Bloomington, CA
Here’s what we’re seeing in the 92316 market as of 2026:
- Fixture-only refresh (new toilet, vanity, faucet, light, paint): $4,500 to $8,000
- Tub or shower replacement with floor repair: $8,000 to $14,000
- Full guest bathroom gut and rebuild: $14,000 to $24,000
- Master bathroom expansion with tile and custom shower: $22,000 to $38,000
- ADU bathroom build-out with septic or sewer work: $18,000 to $40,000+ depending on septic condition
What moves the number in Bloomington specifically: the age of your drain lines under the slab, whether the lot is on septic, the condition of the venting, and whether any legacy unpermitted work must be brought current. We give a written line-item quote, and the price doesn’t move unless you change the scope. Call (866) 730-4828 to schedule a free estimate.
Remodeling on a Tight Bloomington Lot: How We Keep It Clean and the Neighbors Onside
Bloomington’s unincorporated county status means ADU bathroom remodels require San Bernardino County Building & Safety permits, but many lots also have legacy unpermitted bathroom or utility structures that must be legalized first. That adds months to the timeline. This is the single biggest scheduling factor on a Bloomington ADU bathroom job, and it’s the part most contractors gloss over during the estimate.
We don’t. We check the county records before we quote. If there’s an unpermitted structure or a plumbed garage that was converted informally, we tell you what it means for your permit timeline. Sometimes it’s a simple as-built submittal and an inspection. Sometimes it’s opening walls, replacing framing, and routing new plumbing before the remodel itself can begin. On a half-acre lot off Cedar Street, we converted a detached garage into an ADU with a full bathroom that needed Abodu repair in Bloomington. The existing bathroom drain tied into a failing septic system, so we re-routed the plumbing to a new septic tank and installed a low-flow toilet and a Dvele prefab shower surround to meet county water-conservation rules. The septic work took two extra weeks. The alternative was waiting for a failed percolation test to kill the project.
On tight or semi-rural lots, staging and access matter. We plan material deliveries for the exact day they’re needed, keep a covered dumpster on-site, and coordinate with your neighbors before we park equipment on a shared driveway. Bloomington lots are generous by Southern California standards, but an ADU build with a bathroom adds a second plumbing run, which means trenching. We protect the existing landscaping and restore the site when the trench closes.
We Also Serve Cities Near Bloomington
Our Bloomington crews work throughout the surrounding Inland Empire. That includes Bathroom Remodeling in Bloomington and nearby communities like Fontana, Rialto, Glen Avon, and Pedley. If you’re a few minutes outside the 92316 ZIP, we can still help, and the county permitting picture often looks similar.
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. Bloomington is unincorporated San Bernardino County, so ADU bathroom remodels go through county Building & Safety, not a city hall. You’ll need a building permit for structural work and a separate plumbing permit for drain, water, and vent changes. We pull both. The plumbing permit is the one that triggers stop-work orders when it’s missing, so we never skip it. Call (866) 730-4828 and we’ll confirm exactly what your specific project needs.
If your Bloomington property is on septic, adding or remodeling a bathroom in an ADU means the county will likely require a septic capacity check, sometimes a full percolation test. If the system is undersized or failing, you’re looking at a new tank or leach field before the bathroom can be signed off. That’s $8,000 to $25,000 depending on what the test finds. We handle the evaluation as part of the remodel quote so there are no surprises mid-project.
The three we see most: a missing county plumbing permit, legacy unpermitted venting that fails inspection, and septic capacity that can’t handle the added bathroom. All three are avoidable if they’re identified before demo starts. We check county records and the septic condition up front, and we write the quote so the venting rework is included, not discovered.
Often yes, and it’s one of the most common ADU paths in 92316 because so many properties have detached garages or workshops. The county will require the structure to meet current living-space codes, the unpermitted work to be legalized, and the bathroom to meet water-conservation rules if you’re on septic. We’ve done this exact conversion on Cedar Street, and the bathroom was the most inspected part of the build. Get a free estimate at (866) 730-4828 before you assume the garage won’t pass.
County permit review for a bathroom remodel in Bloomington typically takes 2 to 6 weeks, and that’s before any legacy unpermitted structure review. If the county needs an as-built submittal for an old garage bathroom or a septic evaluation, expect 4 to 8 weeks of paperwork before the build starts. We handle the submittals and the follow-up so you’re not chasing inspectors. Call (866) 730-4828 and we’ll give you a realistic timeline for your specific property.
When you’re ready to price the project, call (866) 730-4828. Nate and the team will walk the property, check the county record, and give you a written estimate that covers the real scope, permits included. No guesswork, no pressure, just a straight answer about what your Bloomington bathroom remodel will take.
Written by Nate Calloway, Owner at Bungalow ADU Builders, serving Bloomington and the surrounding Inland Empire.