Bathroom Remodeling
Johnston, IA
Johnston homeowners invest in their homes for the long haul. The Johnston Community School District keeps families in place, and that commitment shows up in how residents approach bathroom remodeling: they want it done right, and they want it to last.
The 1980s through early 2000s housing stock that defines much of Johnston means outdated tile, aging shower surrounds, and primary baths that have not been touched since the home was built. That is a daily quality-of-life problem that compounds every morning.
Busy Builders fixes Johnston bathrooms the right way: waterproofing first, tile second, no shortcuts, and a written estimate before any demo begins.
Johnston Bathroom Remodeling
About Us
Since 2020, Busy Builders has completed 1,285+ remodeling and construction projects across Central Iowa, including bathroom remodels throughout Johnston and the broader Polk County metro.
Johnston’s housing stock runs heavily from the 1980s through the early 2000s. That means dual-income households are now looking at primary baths with original builder-grade tile, jacuzzi tubs that never get used, and shower surrounds at or past their service life. Exhaust fans venting into attics instead of to the exterior are common in homes of this era, and the damage they cause rarely shows on the surface until demo day.
We assess each Johnston bathroom on its own terms. We tell you what has to go, what can stay, and what it will cost before a single tile comes off the wall.
Our Mission
Honest pricing, a clear written scope, and no surprise charges on every bathroom remodeling project in Johnston and across Central Iowa.
We walk through your bathroom before any estimate is produced. We check what the tile is hiding, where the plumbing runs, and whether your exhaust fan is venting to the exterior or quietly feeding moisture into your ceiling cavity.
We will not sell you a scope your bathroom does not need.
Our Vision
We want to be the registered contractor that Johnston homeowners call first for bathroom remodeling in Central Iowa and recommend to their neighbors without hesitation.
Johnston is a growing Polk County community with high expectations and homes worth investing in. Every bathroom we build here goes through the same waterproofing-first process, the same permit coordination, and the same written scope standard. We know Johnston’s bathrooms, and we build each one to last.
- Bathroom Remodeling Step By Step
How Do We Remodel Your Johnston Bathroom?
ASSESSMENT & PLANNING
Before any demo begins, we walk through your Johnston bathroom from floor to ceiling. We check tile condition, subfloor integrity, moisture history, exhaust fan routing, plumbing locations, and existing electrical circuits.
Johnston homes built before 1990 frequently have exhaust fans routed into the attic rather than to the exterior. That single detail causes more mold problems, recurring grout failures, and ceiling stains than almost any other bathroom issue in this area. We catch it here, before a single wall opens.
Permit requirements are confirmed for your specific scope before anything is quoted. You receive a written scope of work and a written timeline before we touch a single tile. For more context, review our guide on bathroom remodeling costs in Central Iowa before your consultation.
- Full condition assessment of plumbing, electrical, subfloor, and ventilation
- Water damage and mold check before demo begins
- Written scope of work with timeline and cost before any work starts
Demo is where the real condition of a Johnston bathroom becomes visible. Water damage behind shower surrounds, rotted subfloor beneath leaking tub drains, corroded supply lines inside walls, and mold colonies seeded by years of attic-venting exhaust fans all surface here.
Iowa’s humidity swings accelerate damage behind improperly waterproofed tile. What looks like a grout problem on the surface is often a substrate failure underneath. We do not cover up what we find. Every moisture problem, subfloor failure, or corroded line is addressed before rebuilding begins.
Hidden costs in Johnston bathrooms are real, especially in homes built before 1990. Budgeting a 15 to 20% contingency for older homes is not overcautious. It is accurate. Our guide on evaluating bathroom remodeling costs and benefits breaks down what to expect at every scope level.
- Selective or full demo based on remodel scope
- Mold remediation, subfloor repair, and rotted framing replacement
- All hidden water damage addressed before any new materials go in
DEMO & WATER DAMAGE REPAIR
PLUMBING ROUGH-IN
Moving a toilet, adding a second sink, or relocating a shower drain all happen while the walls and floor are open. This is the lowest-cost window for any layout change. Waiting until after walls close adds $3,000 to $10,000 and weeks to the timeline.
All plumbing rough-in work is performed by state-licensed plumbers and inspected before walls close. We also replace corroded galvanized supply lines and upgrade shutoff valves at this stage. Johnston homes from the 1980s frequently have galvanized supply lines still in place. These are identified at demo and replaced before new plumbing is roughed in.
Plumbing relocation is the single biggest cost driver in any bathroom remodel. Keeping the existing plumbing layout saves $3,000 to $10,000 on most projects. Busy Builders walks through that decision at every consultation.
- Toilet, sink, and shower drain relocation while walls and floors are open
- Supply line replacement and shutoff valve upgrades
- Licensed plumber on all rough-in work, inspected before walls close
Electrical rough-in covers new circuits, outlet placement, lighting wiring, exhaust fan wiring to the exterior, and heated floor connections where scoped.
Iowa NEC 2023 requires GFCI protection on every bathroom outlet, not just the ones near the sink. In Johnston homes built before 1990, this step often uncovers undersized panels or missing GFCI protection throughout the bathroom. All of it is brought up to current code before drywall goes up.
All electrical work is performed by state-licensed electricians, pulled with permits, and inspected before any wall surfaces close. The exhaust fan is wired to exterior venting at this stage, not into the attic where moisture accumulates and feeds mold inside the ceiling cavity.
- New circuit installation for lighting, outlets, exhaust fan, and heated floors
- GFCI protection on all bathroom receptacles per Iowa NEC 2023
- Licensed electrician on all wiring, permitted and inspected before drywall
ELECTRICAL ROUGH-IN
WATERPROOFING & SUBFLOOR PREP
Waterproofing is the step that determines whether a bathroom lasts five years or twenty-five. It is also the step most homeowners never see after the project is complete, which is exactly the point.
Busy Builders applies a waterproofing membrane behind all tile in showers, tub surrounds, and wet walls. Cement backer board is installed and seams are properly lapped before any tile begins. Tile and grout are not waterproof. The membrane is. Iowa’s seasonal humidity swings create constant pressure on grout lines, and contractors who skip membrane installation produce showers that fail within three to seven years.
Subfloor is leveled, repaired, and fully prepped before any tile or flooring is installed. Skipping subfloor prep is the leading cause of tile failures in Johnston and throughout the Polk County metro. We do not skip it.
- Waterproofing membrane applied behind all shower and tub tile
- Subfloor leveling and repair before any flooring or tile is set
- Cement board or equivalent backer installed on all wet wall surfaces
Tile sets the tone in every Johnston bathroom we complete. We set floor tile, shower tile, and accent tile with proper layout, spacing, and grout selection built to handle Iowa’s hard water and humidity swings.
Johnston sits in Polk County, where thermal swings from bitter winter lows to humid summer highs stress grout near exterior walls and floors over unheated spaces. We use sealers and thinset rated for Iowa’s climate. For non-tile areas, luxury vinyl plank and heated floor systems are installed during this step.
Read our guide on Iowa flooring options: LVP, hardwood, or tile to understand which materials hold up best in Central Iowa bathrooms.
- Floor tile, shower tile, and tub surround tile set with proper installation
- Luxury vinyl plank and heated floor system installation in non-tile areas
- Grout sealing and edge caulking at all floor-to-wall transitions
TILE & FLOORING INSTALLATION
DRYWALL & CEILING
Moisture-resistant drywall goes on all bathroom walls in every Johnston project we complete. Standard drywall fails quickly in high-humidity spaces. We use cement board in wet zones and moisture-resistant drywall in dry areas throughout.
Ceilings are finished smooth and primed for paint. Iowa code requires a minimum ceiling height of 7 feet for habitable bathroom space, and we plan around existing structural constraints to maximize usable height.
Proper drywall selection is one of the details that separates a Johnston bathroom that holds up for 20 years from one that shows problems within three.
- Moisture-resistant drywall on all bathroom walls and ceiling
- Cement board or greenboard in all wet zones per Iowa building code
- Smooth finish on all surfaces, primed and ready for paint
Vanity, toilet, mirrors, and cabinetry go in once tile and drywall are complete. We set countertops, mount sinks, connect plumbing, and install all cabinetry level and secure.
Fixture selection happens during the planning stage, so lead times do not delay the project. Tile is the most common schedule variable in Johnston bathroom remodels , ordering early prevents hold-ups.
This is the step where a Johnston bathroom stops looking like a construction zone and starts looking like the finished room you planned from the beginning.
- Vanity, countertop, and sink installation with plumbing connections
- Toilet, mirror, and cabinetry installation and leveling
- All fixture connections tested before moving to final finishes
VANITY, FIXTURES & CABINETRY
PAINTING & VENTILATION
Painting happens after tile and cabinetry, so walls can be cut in cleanly around everything already in place. We use moisture-resistant bathroom paint on every project. Standard interior paint peels and stains within a year in a humid Iowa bathroom.
Exhaust fan installation and final ductwork connection to the exterior also happen at this step. Many Johnston homes built before 1990 have exhaust fans venting into the attic rather than outdoors. That mistake saturates insulation, feeds mold inside ceiling cavities, and causes grout failures that look like tile problems but are actually ventilation problems. We never route exhaust into the attic, regardless of how the original setup was done.
For more on why proper exhaust matters in Iowa homes, Energy.gov’s bathroom ventilation guidance explains the long-term impact of correct exterior venting.
- Moisture-resistant paint applied in two coats for clean, lasting coverage
- Exhaust fan connected and vented to the exterior per Iowa building code
- Final inspection scheduled with your city before project handoff
Final finishes are the details that make everything feel intentional and complete. Towel bars, toilet paper holders, robe hooks, outlet covers, light switch plates, mirror mounting, and door hardware all go in at this stage.
We do a detailed walkthrough with the homeowner to check every surface, every connection, and every finish before we call the project done. Permits are closed out where required, and final inspections are scheduled through the appropriate Polk County or Johnston permitting authority.
Most Johnston bathroom remodels run 3 to 8 weeks from start to finish. Read our guide on how to prepare your Iowa home for a remodel so you know exactly what to expect before demo begins.
- Towel bars, hardware, outlet covers, and all finish accessories installed
- Full function test on all plumbing, electrical, and ventilation before handoff
- In-person walkthrough and quality review with homeowner
FINAL FINISHES & WALKTHROUGH
- Achievement
Johnston Bathrooms Done Right.
Since 2020, Busy Builders has completed 1,285+ projects across Central Iowa with a 99% satisfaction rate. Every bathroom remodel starts with a full walkthrough, a written scope, and a fixed estimate, so Johnston homeowners know exactly what they are getting before demo begins.
- Frequently Asked Questions
FAQs About Bathroom Remodeling in Johnston, IA
How much does a bathroom remodel cost in Central Iowa?
Costs depend on room size and scope. A half bath cosmetic refresh in Johnston runs $6,500-$16,000. A full bathroom mid-range remodel, the most common scope in Central Iowa, runs $12,700-$30,000. A primary suite overhaul runs $22,500-$35,000+, with luxury projects reaching $70,000-$100,000.
Labor is 40-65% of total cost. The biggest single cost driver is plumbing relocation. Keeping existing plumbing in place saves $3,000-$10,000 on most projects. Always budget 15-20% contingency for Johnston homes built before 1990, because demo surfaces problems that were not visible at the walkthrough.
See our complete breakdown of bathroom remodeling costs in Central Iowa for a full scope-by-scope guide.
How long does a bathroom remodel take?
Timeline depends on scope. A cosmetic refresh, new fixtures, vanity swap, and paint, runs 1 to 3 weeks. A mid-range remodel with tile replacement and plumbing updates typically takes 3 to 6 weeks. A major overhaul with layout changes or structural work runs 5 to 8 weeks.
Add 1 to 3 weeks for permit processing in Johnston. Tile lead times are the most common schedule variable, so we order materials early to keep the schedule on track. Johnston’s 1980s and 1990s housing stock often requires additional time if moisture or subfloor issues surface during demo.
Busy Builders builds a written timeline for every project and updates homeowners at every phase transition. No surprises on schedule, just like no surprises on price.
Do I need a permit to remodel a bathroom in Iowa?
Yes, for any scope that moves or adds plumbing, relocates electrical circuits, adds an exhaust fan on a new circuit, or touches structural walls.
Cosmetic updates, new fixtures, paint, mirror swaps, and flooring over existing substrate, typically do not require a permit. Any work beyond cosmetic scope does. Skipping required permits creates problems at resale, with insurance, and with lenders that cost far more than the permit itself.
Iowa requires any contractor earning $2,000 or more annually to hold active registration with Iowa DIAL under Iowa Code Chapter 91C. Busy Builders is fully registered. You can verify our registration at Iowa DIAL before signing any contract. We pull all permits and schedule all inspections as part of every project scope.
Should I keep my tub or replace it with a walk-in shower?
The right answer depends on your household and how many tubs exist in the home. If the bathroom being remodeled has the only tub in the house, keep it. A significant share of buyers with young children require at least one tub, and removing the only tub can hurt resale in Johnston’s competitive market.
If a second tub exists elsewhere in the home, converting the primary bath to a walk-in shower is almost always the better call. Curbless designs, frameless glass, and a built-in niche are the current standard in Johnston metro bathroom remodels. They maximize perceived space and are the most requested upgrade we see from Johnston homeowners.
Read our full breakdown in the shower or tub value guide for Iowa homeowners to see how the decision plays out by home type.
What bathroom upgrades give the best return on investment?
Mid-range bathroom remodels currently deliver approximately 80% ROI at resale, the highest figure since 2007, according to the Zonda 2025 Cost vs. Value Report. Upscale remodels return closer to 37%. High-end finishes serve the homeowner’s enjoyment, not the appraiser.
In Johnston, the upgrades that return the most at resale are walk-in showers with proper waterproofing and tile, double vanities, and updated lighting. Keep total bathroom spending under 10-15% of home value to avoid over-improving for the neighborhood.
Quality waterproofing behind tile is the most important upgrade buyers will never see, but it protects the value of everything visible above it. Read more about evaluating bathroom remodeling costs and benefits before committing to a scope level.
How do you protect the rest of my home during a remodel?
We seal off the work area with plastic barriers to contain dust and debris from the rest of your home. Floors and hallways leading to the bathroom are protected from traffic and tool movement throughout the project. Crews clean up at the end of every workday.
A bathroom remodel happens inside your home, and we treat it that way. Johnston homes with older housing stock, particularly those built before 1990, may have lead paint or asbestos in existing tile, drywall compound, or flooring adhesive. Busy Builders identifies these conditions during the walkthrough and handles them properly before demo begins.
For tips on getting your home ready before the crew arrives, see our guide on preparing your Iowa home for a remodel. We also cover hidden costs in Iowa home remodels so you know what to budget for before demo day.
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