Bathroom Remodeling in Bloomington — One Written Price, No Change Orders

Fast, Reliable Bathroom Remodeling Across Bloomington

A bathroom remodel in a Bloomington home runs $14,000 to $29,000 for a standard full gut-and-replace, while a bathroom inside a detached ADU or converted shop on a county lot typically lands between $18,000 and $38,000 depending on septic tie-ins, panel capacity, and how much custom framing the existing structure needs. Most projects wrap in two to four weeks once permits clear through San Bernardino County. We work on 1950s through 1980s single-family homes here every month, so we already know what hides behind the stucco and block walls. Call (877) 658-7475 and we will walk your lot before we quote anything.

Call (877) 658-7475

Why Casita ADU Builders Is Bloomington’s Preferred Bathroom Remodeling Company

Bloomington is not Fontana or Rialto. There is no city hall here and no city building counter to walk into. Every permit, every inspection, every septic and well review runs through San Bernardino County, and that process has its own rhythm. Nolan Treffert and our crew know which county forms trigger a percolation test, which inspector comments come back on a detached ADU bathroom, and how to sequence demolition so you are not paying a plumber to stand around waiting on a county sign-off.

We also know the housing stock. Most Bloomington homes along Cedar Avenue, Sycamore Avenue, and the streets off Valley Boulevard are modest stucco-and-frame builds with shallow setbacks, block-wall fencing, and big rear yards. Bathrooms in these homes were framed to 1960s and 1970s rough openings, which means standard 60-inch vanities and off-the-shelf shower pans rarely drop in without some custom work. We account for that before we quote, not after the tile is ordered.

Because we are an ADU-focused builder, we treat every Bloomington bathroom remodel as part of a larger property plan, even when the job is just the bathroom today. If the panel is undersized for a tankless water heater now, we flag it in writing. If the sewer lateral looks questionable, we tell you before you spend money on finish work. That is the difference between a crew that only does bathrooms and a team that understands the whole property.

Our Bathroom Remodeling Services in Bloomington

Full Bathroom Remodel in a Detached ADU

Most Bloomington ADUs start as a detached structure in a large rear yard, so the bathroom is usually built or rebuilt inside that unit rather than attached to the main house. We handle the full interior: demo, plumbing rough-in, waterproofing, tile, vanity, fixture install, and the finish work that makes it feel like a real bathroom, not a shed with a toilet. Because the bathroom ties into a septic system or a private well on many Bloomington lots, we scope the drain and water-service sizing with the county’s review requirements in mind from day one. Bathroom Remodeling for a detached ADU here is our most common project type.

Bathroom Remodel in a Converted Shop or Outbuilding

Bloomington has a lot of older detached garages and metal or wood-framed shops sitting at the back of big lots. Converting one into living space with a bathroom is a smart way to add a rental unit or a multigenerational suite without building from scratch. The catch: those structures were never framed or plumbed for a bathroom, so we usually have to cut into the slab, run new waste lines, upsize the water service, and rebuild the rough opening to modern dimensions. We do this work under one contract, which means the plumbing, framing, electrical, tile, and finish all stay with our crew and our subcontractors.

Accessible and Curbless Shower Conversion

For aging-in-place ADUs and multigenerational setups, we rebuild walk-in showers with a curbless pan, blocking for grab bars, and slip-resistant tile. On Bloomington lots with older slabs and seasonal ground movement from hot, dry summers, we use fiber-cement backer board and proper membrane detailing so the pan does not crack when the slab shifts. This is the kind of detail that only matters when you have built ADU bathrooms across San Bernardino County for years.

Panel and Water-Heater Upgrades for Bathroom Remodels

A bathroom remodel in a Bloomington ADU or older home rarely stops at tile and fixtures. Older 100-amp panels on 1960s and 1970s homes often cannot support an electric tankless water heater or a heated floor, and that upgrade has to happen before the county inspector will sign off on the new bathroom. We scope this during the estimate, not as a change order. If your panel is undersized, the quote includes the service upgrade so there are no surprises mid-project.

Trusted Brands We Service in Bloomington

We build bathrooms inside ADUs from Plant Prefab and Abodu, and we use James Hardie fiber-cement backer board in every wet area we touch. Hardware for those builds is not exotic, so we keep common parts and finishes on hand or within a day’s pickup in the Inland Empire. That means a Bloomington customer waiting on a shower valve or a mixing valve for a Plant Prefab unit does not lose a week. For shop conversions and detached ADUs where budget matters more than brand speed, the Tuff Shed pathway gives us a shell we can fit out with a full bathroom fast. We use the same waterproofing and tile standards inside a Tuff Shed conversion as we do inside a high-end modular unit.

Common Bathroom Remodeling Problems We See in Bloomington Homes

• Septic and well constraints that stall the permit. Many Bloomington lots are not on sewer. A bathroom remodel inside a detached ADU or shop conversion adds fixture units to the septic system, and San Bernardino County requires a capacity check before it will release the plumbing permit. If the system cannot handle the new bathroom, you are looking at a drain-field upgrade before any tile goes in.
• Nonstandard rough openings in 1950s to 1980s framing. The original bathroom in a 1970s Bloomington house or shop was framed for a 54-inch tub-and-shower combo and a narrow vanity. Standard 60-inch fixtures do not fit without reframing. We inspect rough openings before finalizing the fixture order so you are not stuck with a shower pan that will not seat.
• Undersized electrical panels in older structures. A detached shop from the 1960s usually has a 100-amp panel, or less. Adding a bathroom with a dedicated water-heater circuit, GFCI protection, and a bath fan trips the county’s load calculation. We include the service upgrade in the quote when the math does not work.
• Summer heat ruining waterproofing and tile work. Bloomington gets hot. When tile thinset and waterproofing membranes cure too fast in 100-degree heat, adhesion fails and you get cracked grout and leaking pans within a year. We schedule membrane and tile work for early mornings in peak summer, and we shade the ADU interior while materials cure.

Pricing for Bathroom Remodeling in Bloomington, CA

We Also Serve Cities Near Bloomington

Our crew runs jobs in Bathroom Remodeling in Bloomington and the surrounding San Bernardino County communities. We serve Fontana, Rialto, Glen Avon, and Pedley, covering the same permit quirks and older housing stock throughout the western Inland Empire. Wherever your lot sits, the estimate is free and the quote is line-item.

FAQs – Bathroom Remodeling in Bloomington