210-504-9796
Veteran Owned
Modern garage conversion with large windows and contemporary living space in a San Antonio Texas home by C.S.W. Power Solutions
Licensed General Contractor — ADU & Living Space Specialist

Garage Conversions in San Antonio

C.S.W. Power Solutions converts garages into beautiful living spaces, home offices, ADUs, and rental units across San Antonio. In-house licensed electricians, plumbers, and HVAC technicians — one contractor manages your entire garage conversion from permits to final inspection.

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Veteran Owned
& Operated
Licensed
& Insured
Est. 2016
San Antonio
Electrical Lic.#TECL31793
Plumbing Lic.#RMP37882
HVAC Lic.#TACLA26479R

Garage Conversion Services in San Antonio

C.S.W. Power Solutions provides complete garage conversion services for San Antonio homeowners. Whether you want a guest suite, home office, rental unit, or full ADU, our licensed team handles every aspect — from garage door removal and wall framing to electrical, plumbing, HVAC, and all finish work. As a licensed general contractor with in-house trades, we eliminate subcontractor markups and scheduling delays.

  • Garage door removal and new wall construction with matching exterior
  • Insulation — walls, ceiling, and floor for year-round comfort
  • Drywall installation, texturing, and painting
  • Flooring — LVP, tile, hardwood, or polished concrete
  • New electrical circuits, outlets, lighting, and panel connections (TECL 31793)
  • HVAC ductwork extension or ductless mini-split installation (TACLA 26479R)
  • Bathroom addition with full plumbing rough-in (RMP 37882)
  • Kitchenette with sink, countertop, and appliance hookups
  • Windows, exterior doors, and separate entrance installation
  • ADU compliance with San Antonio zoning and building codes

Garage Conversion Cost in San Antonio

Garage conversion costs depend on the size of the garage, scope of work, and whether plumbing is included. Below are typical price ranges for San Antonio garage conversions in 2025-2026.

Basic Conversion

$15,000 – $25,000

  • Insulation & drywall
  • Flooring (LVP/tile)
  • Electrical circuits & lighting
  • HVAC extension
  • 3–5 weeks

Mid-Range Conversion

$25,000 – $50,000

  • Full bathroom addition
  • Quality flooring & finishes
  • New windows & exterior door
  • Separate HVAC zone
  • 5–8 weeks

Full ADU / Rental Unit

$50,000 – $80,000+

  • Bathroom + kitchenette
  • Separate entrance & utilities
  • Premium finishes throughout
  • ADU code compliance
  • 8–12 weeks

* Prices are estimates based on typical San Antonio projects. Actual costs vary based on garage size, condition, materials, and scope. Contact us for a free, detailed estimate.

Why San Antonio Homeowners Choose C.S.W. for Garage Conversions

Garage conversions require electrical, plumbing, and HVAC work — three separate trades that most contractors subcontract out. C.S.W. Power Solutions has all three trades licensed and in-house. That means one contract, one schedule, one company responsible for your entire garage conversion from demolition to final inspection.

  • Licensed general contractor — one company manages your entire garage conversion
  • In-house licensed electricians (TECL 31793) for new circuits, outlets, and lighting
  • In-house licensed plumbers (RMP 37882) for bathroom and kitchenette plumbing
  • In-house HVAC technicians (TACLA 26479R) for ductwork or mini-split installation
  • Experienced with San Antonio ADU regulations and zoning requirements
  • Detailed, itemized estimates with labor and material breakdowns
  • No subcontractor markups — save 15-25% on multi-trade projects
  • Veteran-owned and operated since 2016
Completed garage conversion with modern living space, large windows, and contemporary finishes by C.S.W. Power Solutions in San Antonio TX

Our Garage Conversion Process

01

Site Assessment

We inspect your garage, evaluate structural conditions, discuss your vision (living space, ADU, office), and identify electrical, plumbing, and HVAC requirements.

02

Design & Estimate

You receive a detailed floor plan and line-by-line estimate covering demolition, framing, electrical, plumbing, HVAC, finishes, and permits — no hidden costs.

03

Permits & Construction

We pull all required permits, coordinate inspections, remove the garage door, frame new walls, and build out the space with our in-house licensed trades.

04

Final Walkthrough

We walk through the completed conversion together, test all systems, address any punch list items, and ensure everything meets code and your expectations.

In-House Licensed Trades

Every project by C.S.W. Power Solutions benefits from our in-house licensed trades. Our electricians handle new circuits, lighting, and outlets. Our plumbers manage water lines, drain lines, and gas connections. Our HVAC technicians modify ductwork and install new zones. Need a generator or EV charger as part of your project? We handle that too — all under one contract.

Google Reviews

What Our Customers Say

4.8

Based on 159 Google reviews

CH
Chris Howard
8 months ago
General Contracting

"From the initial estimate to scheduling the work, this company has been very accommodating and professional. The patio extension has been a great added value to our home. A big thank you to the crew and all their hard work!!"

Google Review
BH
Beth Howard
8 months ago
General Contracting

"We added a 10x17 ft extension to our existing 8x17ft patio to maximize our small backyard with space for family gatherings and relaxing outside. Our experience from the estimate to final completion was efficient and professional."

Google Review
CL
Carol Lee
2 months ago
General Contracting

"My balcony was rotted out and not safe. CSW came and completed the job in two days and then gave me a gutter to boot. I recommend them highly."

Google Review
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Garage Conversion Service Areas

C.S.W. Power Solutions provides remodeling and construction services throughout San Antonio and surrounding communities including Alamo Ranch, Boerne, Castle Hills, Cibolo, Converse, Helotes, Leon Valley, Live Oak, New Braunfels, Schertz, Shavano Park, Stone Oak, and Universal City.

Alamo RanchBoerneCastle HillsCiboloConverseDowntown San AntonioHelotesLeon ValleyLive OakNew BraunfelsSchertzShavano ParkStone OakUniversal City
Common questions about garage conversions in San Antonio

Garage Conversion FAQ

Garage conversion costs in San Antonio range from $15,000 to $40,000 for a basic conversion and $40,000 to $80,000+ for a high-end conversion with a bathroom and kitchenette. A basic single-car garage conversion (living space with insulation, drywall, flooring, electrical, and HVAC) runs $15,000 to $25,000. A two-car garage conversion with a full bathroom and kitchenette runs $40,000 to $80,000. C.S.W. Power Solutions provides a free, itemized estimate with labor and material breakdowns.
Yes. Garage conversions in San Antonio require permits from the Development Services Department. You will need building permits for structural changes, electrical permits for new circuits and outlets, plumbing permits if adding a bathroom or kitchenette, and HVAC permits for new ductwork or mini-split installation. C.S.W. Power Solutions handles all permitting and inspections as part of every garage conversion project.
A typical garage conversion in San Antonio takes 4 to 8 weeks depending on the scope. A basic conversion (insulation, drywall, flooring, electrical, HVAC) takes 3 to 5 weeks. A full conversion with a bathroom, kitchenette, and separate entrance takes 6 to 10 weeks. Permitting adds 2 to 4 weeks. C.S.W. Power Solutions provides a detailed project timeline during the estimate phase.
Yes. San Antonio allows Accessory Dwelling Units (ADUs) in most residential zones. A garage-to-ADU conversion typically includes a living area, bedroom, bathroom, and kitchenette with a separate entrance. ADU conversions require additional permits and must meet specific setback, parking, and utility requirements. C.S.W. Power Solutions has experience with San Antonio ADU regulations and handles the entire process from design to final inspection.
Yes. A well-executed garage conversion typically adds $20,000 to $50,000 in home value depending on the quality of the conversion and whether it includes a bathroom. ADU conversions can add even more value due to rental income potential. The key is professional construction with proper permits, insulation, HVAC, and finishes that match the rest of the home. Unpermitted conversions can actually decrease home value and create problems during resale.
A complete garage conversion by C.S.W. Power Solutions includes garage door removal and wall framing, insulation (walls, ceiling, and floor), drywall installation and finishing, flooring (LVP, tile, or hardwood), electrical circuits, outlets, and lighting (TECL 31793), HVAC ductwork or mini-split installation (TACLA 26479R), windows and exterior door installation, interior and exterior paint, and optional bathroom and kitchenette plumbing (RMP 37882). We handle every trade in-house.
In most cases, yes. The garage door opening is framed with a new wall that includes insulation, a window or door, and exterior finish that matches your home. Some homeowners choose to keep a portion of the opening as a large window or French doors for natural light. The structural header above the garage door opening is typically sufficient to support the new wall without additional structural work.
Yes. Adding a bathroom to a garage conversion requires plumbing rough-in (water supply and drain lines), a concrete slab cut for drain connections, electrical circuits for outlets, lighting, and exhaust fan, waterproofing, tile work, and fixture installation. Bathroom additions to garage conversions cost $8,000 to $20,000 depending on size and finishes. Our licensed plumbers (RMP 37882) and electricians (TECL 31793) handle all the work.

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VA Approved Builder

San Antonio, TX

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Plumbing Lic. #RMP37882HVAC Lic. #TACLA26479RElectrical Lic. #TECL31793

Ready to Convert Your Garage?

Get a free, no-obligation estimate from a licensed general contractor with in-house electrical, plumbing, and HVAC. One call — one contractor — your new living space.

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