Austin (318) 348-4317
Hudredfold Services
Garage Conversion Contractor for Austin, TX Homes

Craftsmanship That Multiplies Value

Garage Conversion Contractor for Austin, TX Homes

Turn an underused garage into a bedroom, office, or apartment. One team handles framing, insulation, drywall, electrical, and flooring across the Austin metro.

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Garage Conversion Contractor Serving the Austin Metro

You've got a garage you barely park in and a house that's short a room. A garage conversion contractor turns that concrete box into finished, conditioned living space: a fourth bedroom, a home office, a guest suite, or an income-generating ADU. Hundredfold Services handles the full conversion under one point of contact, from framing out the old door opening to hanging and finishing the drywall and insulation for a converted garage, running the wiring, and laying the floor. No dispatch desk, no handing your job to whoever's free that week. You talk to the person doing the work, and you'll know what the space needs before anything gets torn out. Call (318) 348-4317 and describe what you're working with.

Here's the part most Austin homeowners don't hear until they're mid-project: a garage was never built to the same standard as the rooms inside your house. The slab usually sits a step lower than the finished floor, the walls are often uninsulated, and the ceiling frequently has no vapor or thermal barrier at all. Converting it to living space means bringing all of that up to the standard a habitable room has to meet, and in Central Texas that starts with insulation and conditioned air because an uninsulated garage hits well over 100 degrees inside on an Austin August afternoon. We scope the whole thing first, then tell you what's realistic. Every job is different, contact Hundredfold Services for an accurate estimate.

What a Garage Conversion Living Space Actually Involves

01

From Garage to Living Space

Insulate the walls and ceiling, seal the slab, and frame in the old overhead door opening so the space holds conditioned air. This is the single biggest difference between a finished room and a garage with drywall stapled over the studs.

02

Closing the Garage Door Opening

The old car door becomes a wall, a window, or a proper entry. We frame the opening, sheathe it, and match the exterior so the front of the house doesn't broadcast that a garage used to be here.

03

Electrical for a Habitable Room

New rooms need outlets on the right spacing, switched lighting, and often a dedicated circuit. We bring in a licensed electrician for panel and circuit work, then handle the outlets and lighting for garage living space that surround it.

04

Slab Prep and Flooring

Garage slabs are cold, sometimes cracked, and usually pitched toward the door for drainage. We level and prep the slab, add a moisture barrier and subfloor where it's needed, then lay the flooring you choose.

05

Drywall and Finish Work

Full drywall from bare framing, taped, mudded, and skimmed to a finish that matches the rest of the house. Shared walls with the remaining garage or the main structure get the fire-rated board code requires.

06

Built for How You'll Use It

Bedroom, office, gym, playroom, mother-in-law suite, or a full ADU with its own bath and kitchenette. We build the conversion around how you'll actually use the room, not a one-size template.

Our Process

How a Garage Conversion Comes Together

  1. 01

    Scope the Space

    We walk the garage, check the slab condition, look at how the existing wiring and any plumbing run, and talk through what you want the room to do. That walkthrough is what makes the estimate real instead of a guess over the phone.

  2. 02

    Insulate and Frame

    Insulation goes in the walls and ceiling, the old door opening gets framed and sheathed, and we confirm how the room ties into your existing HVAC or whether it needs its own conditioning. Central Texas heat makes this step non-negotiable.

  3. 03

    Finish It Like a Real Room

    Electrical rough-in, drywall hang and finish, flooring, trim, and paint. The room comes together in the same order a new-build room does, because that's what it now is.

Garage Conversion Permit Austin

The City of Austin Permit Realities

  1. 01

    Austin treats it as habitable space

    Do you need a permit to convert a garage in Austin? Yes. The City of Austin treats a garage conversion as a change of use to habitable space, which means it goes through Development Services for permitting and inspection. We build to what the permit requires, not around it.

  2. 02

    Fire separation still applies

    Converting an attached garage often means keeping fire separation between the new room and any remaining garage or the house structure. That drives the drywall type on shared walls and sometimes the door hardware.

  3. 03

    Parking requirements get reviewed

    If you're removing a garage, the city looks at whether your lot still meets off-street parking requirements. This is one of the most common reasons a conversion plan gets sent back, and it's worth checking before you commit.

  4. 04

    An ADU raises the bar

    Turning a garage into a rentable ADU adds another layer: egress windows, ceiling height, and sometimes a separate entrance and utilities. The scope is bigger than a simple bedroom conversion, and the permit reflects that.

One Team Through Every Layer

framed and finished ceiling in a garage conversion project in Austin, TX
A garage conversion is one of the few projects where the trades stack directly on top of each other, and that's exactly where multi-contractor jobs fall apart. The electrician can't rough in until the framing and insulation are set. Drywall can't go up until the wiring passes inspection. Flooring waits on the drywall. When four separate companies own four separate pieces, every handoff is a chance for the schedule to slip and for nobody to own the gap. Hundredfold Services keeps the sequence under one roof: we frame, we insulate, we bring in a licensed electrician for the circuit work, and we handle the drywall, flooring, and finish that turns a garage into finished living space ourselves. One point of contact, one crew moving through the room in order.

When a Garage Conversion Is the Wrong Call

We'd rather tell you now than after the slab is torn up.

A garage conversion isn't always the right move, and we'll say so. If your only off-street parking is that garage and your lot can't add a driveway pad, the city may not approve removing it, and forcing the plan wastes your money. If the slab is badly cracked or heaving from the expansive clay soil common across Central Texas, that's a foundation conversation before it's a conversion conversation. And if you're weighing a conversion purely against square footage, adding on can sometimes give you more usable space for a similar effort. When that's the honest answer, we'll point you toward a home addition instead. We only recommend the conversion when it's genuinely the better path for your house.

Cost Factors

What Affects Garage Conversion Cost

  1. 01

    Starting Condition

    A bare garage with sound framing and a good slab is a far smaller job than one that needs insulation from scratch, a new subfloor over a cracked slab, and the overhead door opening fully rebuilt. Existing condition drives more of the cost than square footage does.

  2. 02

    Bedroom vs. Full ADU

    A simple bedroom or office conversion is one scope. Adding a bathroom, a kitchenette, or standalone HVAC for an ADU pulls in plumbing rough-in, additional electrical load, and separate ventilation. Each of those is a real cost line worth knowing upfront.

  3. 03

    Permit Scope

    Permit and inspection turnaround through the City of Austin is part of the timeline, not a formality. Detached and ADU conversions typically carry more review than a straightforward interior finish. We build the schedule around what the permit path actually requires.

What About Attic Conversion Contractors?

The same finishing trades, a different set of structural questions.

Homeowners searching for garage conversion often ask about attics too, and the finishing work overlaps, but the up-front questions are different. Attic conversion contractors have to answer three things before anything else: is there enough headroom for the code minimum ceiling height, will the existing floor joists carry a live load they were never sized for, and how do you get code-compliant egress and stairs into the space. Those are structural and sometimes engineering questions, and where they require a licensed engineer's stamp, we bring that in. Once the structure is sorted, the finish sequence is the same one we run on a garage: insulate, wire, hang and finish the drywall, and lay the floor. If you're weighing a garage against an attic, call (318) 348-4317 and we'll talk through which one your house is actually set up for.
finished ceiling in a garage conversion project in the Austin metro

Garage Conversion: Common Questions

Do you need a permit to convert a garage in Austin?
Yes. The City of Austin treats converting a garage into living space as a change of use to habitable area, which requires permits through Development Services and passes through inspection. The review looks at insulation, egress, electrical, fire separation on shared walls, and whether removing the garage leaves your lot short on required off-street parking. We build the conversion to meet what the permit requires rather than trying to work around it, and where a plan needs an engineer's stamp we bring one in.
How long does a garage conversion take?
A straightforward bedroom or office conversion of a sound, single-bay garage typically moves through framing, insulation, electrical, drywall, flooring, and paint in a matter of weeks once the permit is in hand. Adding a bathroom, a kitchenette, or converting to a full ADU stretches the timeline because it pulls in plumbing rough-in, more electrical, and additional inspections. Permit and inspection turnaround through the City of Austin is part of the schedule, so the honest answer depends on scope. We give you a realistic timeline after we've scoped the space in person, not before.
Can you convert a garage into a rentable apartment or ADU?
Often yes, but an ADU is a bigger job than a bedroom conversion. It usually needs its own bathroom, a kitchenette, code-compliant egress windows, adequate ceiling height, and sometimes a separate entrance and metered utilities. Austin has specific requirements for accessory dwelling units, and detached or garage-to-ADU conversions carry more review than a simple interior finish. We scope what your lot and structure will support before you commit to the ADU path.
Do I need to insulate a garage before converting it?
Almost always. Most garages in the Austin area have uninsulated walls and ceilings and no vapor barrier, which is fine for parking a truck and unworkable for a room someone lives in. An uninsulated garage bakes past 100 degrees inside during a Central Texas summer and swings cold in winter. Insulating the walls and ceiling, sealing the slab, and tying the room into conditioned air is the step that turns a garage into space that's actually comfortable year-round.
What happens to the garage door opening?
In most conversions the overhead door comes out and the opening gets framed into a solid wall, a window, or a proper entry door, then sheathed and finished so the exterior matches the rest of the house. Leaving the old door in place is one of the fastest ways to make a conversion look like a conversion and to lose the thermal seal the room needs. We frame and finish the opening as part of the job.
Do you handle the electrical and flooring, or just the framing and drywall?
We handle the full conversion. Framing, insulation, drywall, flooring, trim, and paint are all in-house. For the electrical, we bring in a licensed electrician for panel and circuit work and handle the surrounding outlets, lighting, and the drywall that closes it all back up. That's the whole point of calling one team for a garage conversion instead of coordinating four contractors yourself.

Ready to Turn Your Garage Into a Room?

Tell us what the garage looks like and how you want to use the room.

Call (318) 348-4317 Call to Scope Your Conversion

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