What Home Modifications Actually Cost, Project by Project

Real costs for the changes people make most often

Home modification costs depend entirely on what you're changing and who does the work. A grab bar installed by a handyperson costs $50 to $150. A full bathroom remodel with accessibility features costs $15,000 to $30,000. The difference between those two is not just money — it's the difference between a single safety addition and a project that takes weeks and involves plumbing, electrical work, and structural changes.

This guide breaks down what you'll actually pay for the modifications people request most often. Prices reflect typical costs in most U.S. markets as of 2024, but they shift based on your region, the condition of your home, whether you hire a contractor or a handyperson, and whether you need permits. A contractor in a major city will charge more than one in a rural area. A home with old plumbing or wiring will cost more to modify than one built recently.

Key Takeaways

• Grab bars, threshold ramps, and lever door handles cost $50 to $500 each and can be installed in a single day without permits.
• Bathroom modifications like walk-in showers and accessible sinks range from $3,000 to $15,000 depending on whether you're adding plumbing or just changing fixtures.
• Stair lifts and elevators cost $3,000 to $15,000 installed, and both require professional installation and sometimes structural assessment.
• Widening doorways and hallways costs $500 to $3,000 per opening and may require permits and structural work.
• Labor typically makes up 40 to 60 percent of the total cost, so getting multiple quotes from contractors in your area will give you a clearer picture than national averages.

Grab bars, thresholds, and door hardware

These are the smallest modifications and the ones you can often install yourself or hire a handyperson to place. A single grab bar costs $20 to $80 for the bar itself, plus $30 to $70 in labor if you hire someone to mount it securely into wall studs. Most bathrooms need two to four bars — one near the toilet, one in the shower, and sometimes one by the sink or tub edge. Budget $200 to $400 total for a fully grabbed bathroom if you hire help.

Threshold ramps (the wedges that slope over door sills) cost $40 to $150 depending on width and material. A temporary rubber ramp is cheaper than a permanent wooden one. Lever door handles that replace traditional knobs cost $15 to $40 per handle, plus $20 to $50 in labor to swap them out. None of these require permits.

Bathroom modifications: showers, sinks, and toilets

Bathroom work is where costs climb quickly because it involves plumbing, waterproofing, and sometimes structural changes. A curbless (zero-threshold) shower costs $3,000 to $8,000 if you're converting an existing tub or shower. That price includes removing the old fixture, resloping the floor to drain properly, installing new waterproofing, and building a new shower base. If you need to move plumbing lines, add $1,000 to $2,000.

A walk-in tub (a tub with a door you open and close) costs $2,500 to $8,000 installed. The tub itself is $1,500 to $5,000, and installation includes plumbing hookup, electrical work for the pump and heater, and sometimes floor reinforcement. These take 2 to 4 days to install and require a licensed plumber.

Accessible sinks (ones you can roll a wheelchair under) cost $300 to $800 for the sink itself, plus $400 to $1,200 in plumbing labor to install new supply and drain lines. A raised toilet seat costs $30 to $100. A toilet grab frame (a metal frame that clamps around the toilet) costs $40 to $150. Replacing a standard toilet with a comfort-height toilet costs $200 to $500 installed.

Stair lifts and elevators

A stair lift (a motorized seat that moves up and down a staircase) costs $3,000 to $5,000 for a straight staircase and $5,000 to $15,000 for a curved one. Installation takes 1 to 2 days and requires a licensed installer. The lift needs electrical power at the top and bottom of the stairs. Maintenance contracts run $150 to $300 per year. Used stair lifts cost $1,500 to $3,000 but may have limited warranties.

A residential elevator costs $10,000 to $15,000 installed for a small two-stop model, and $20,000 to $30,000 for a larger one. Elevators require structural assessment, electrical work, a separate machine room or pit, and building permits. Installation takes 4 to 8 weeks. Some jurisdictions require annual inspections, which cost $200 to $500 per year.

Doorways, hallways, and entryways

Widening a doorway costs $500 to $1,500 per opening if the wall is not load-bearing. If it is load-bearing (a wall that supports the structure above it), you need a structural engineer to design a beam, which adds $500 to $1,500 in engineering fees, plus $2,000 to $5,000 in construction. Most interior doorways are not load-bearing; exterior walls and walls directly under another floor usually are.

Widening a hallway costs $1,000 to $3,000 per linear foot if it requires moving a wall, and $500 to $1,500 if you're just removing a door frame and opening up an existing space. These projects require permits and often need electrical or plumbing work relocated.

A ramp at an entryway costs $300 to $1,000 for a short temporary ramp, and $1,500 to $3,000 for a permanent wooden or composite ramp. A ramp needs a slope of 1 inch of rise for every 12 inches of length, so a 2-foot rise requires a 24-foot ramp. Handrails add $200 to $500.

Flooring and surface changes

Replacing flooring with slip-resistant material costs $3 to $12 per square foot for materials, plus $5 to $15 per square foot in labor. A typical bathroom (50 to 80 square feet) costs $400 to $2,200 total. Vinyl, tile, and rubber are common slip-resistant choices. Removing old flooring and preparing the subfloor can add $200 to $800 depending on what's underneath.

Leveling a floor or adding a transition strip between rooms costs $200 to $800. This is often necessary when you install a curbless shower or when you need to eliminate trip hazards between different floor heights.

Lighting, switches, and electrical work

Installing motion-sensor lights costs $100 to $300 per fixture including the light and labor. These are useful in hallways and bathrooms. Replacing standard light switches with rocker switches (easier to operate with limited hand strength) costs $50 to $150 per switch. Adding outlets at a higher or lower height costs $100 to $300 per outlet depending on how far the electrician has to run wire.

Installing a full lighting system in a dark hallway or entryway costs $800 to $2,000 depending on how many fixtures you need and how far the electrician has to run wire from the existing panel.

Kitchen modifications

Lowering a standard countertop to wheelchair height (30 to 32 inches instead of 36) costs $1,500 to $3,000 if you're modifying an existing counter. This usually involves removing the old counter, rebuilding the base cabinets, and installing a new counter at the lower height. A section of counter with an open space underneath (so a wheelchair can roll under) costs $800 to $2,000 for that section alone.

Replacing cabinet hardware with D-shaped pulls (easier to grip) costs $50 to $200 total. Installing pull-out shelves in existing cabinets costs $300 to $800. A new accessible kitchen (lower counters, open space underneath, accessible appliances, and repositioned plumbing) costs $8,000 to $20,000 depending on the size of your kitchen and what you're keeping.

Frequently Asked Questions

Do I need a permit for home modifications?

Permits are required for structural changes (widening doorways, moving walls), electrical work beyond simple fixture swaps, plumbing work, and anything that changes the footprint of a room. Grab bars, lever handles, and threshold ramps do not need permits. Call your local building department or ask a contractor whether your specific project needs one — the cost of a permit is usually $50 to $300.

Can I get money to help pay for modifications?

Some programs help with modification costs, but they vary by state and by your situation. Your state's vocational rehabilitation agency, aging services department, or disability services office may have funds. Some insurance plans cover modifications after an injury. Ask your doctor or social worker whether you may have access to for any programs in your area. This guide does not determine what you may receive — you'll need to contact programs directly.

Should I hire a contractor or a handyperson?

Handypersons are cheaper for simple work like grab bars and lever handles. Contractors are necessary for anything involving permits, structural changes, plumbing, or electrical work. A licensed contractor carries insurance and guarantees their work; a handyperson may not. For projects over $2,000, get at least two contractor quotes in writing before you decide.

How long do modifications take to install?

Grab bars and door hardware take a few hours. Ramps and threshold work takes a day. Bathroom modifications take 3 to 7 days depending on complexity. Stair lifts take 1 to 2 days. Doorway widening takes 3 to 5 days. Elevators take 4 to 8 weeks. Ask your contractor for a timeline before work begins so you know when to expect disruption.

What if I rent instead of own my home?

Renters can usually install temporary modifications (grab bars with adhesive strips, threshold ramps, lever handle covers) without landlord permission. Permanent changes like plumbing work or doorway widening require written landlord approval. Some landlords will split the cost of modifications if they benefit future tenants. Ask your landlord in writing and keep their response.