6000 S Congress Ave #101, Austin, TX 78745, United States | +1 512-812-9899

Cumulative Rating: ★ 4.8-5.0 (based on 350+ reviews)

Together Design & Build is a full-service home remodeling general contractor based in Austin (with a second location in Dallas), specializing in kitchen and bathroom remodeling, room additions/home extensions, ADU conversions, and full-home renovations. Founded by Ido Pistiner and Roi Mazor, the company handles projects from 3D design through construction, working with an in-house design team and network of trusted material suppliers. Their portfolio spans dozens of documented addition, kitchen, and bathroom projects, with a dedicated "Home Extensions" service line and city-specific room addition landing pages for the Austin market.

Service Areas Mentioned: Austin, Cedar Park, Round Rock, Pflugerville, Buda, Leander, Georgetown, Bee Cave, Lakeway

Common Review Themes: : Reviewers consistently praise project managers (frequently named: Ido, Roi, Sahar, Kevin) for clear communication, realistic timelines, and hands-on problem-solving when issues arise mid-project. Multiple reviewers are repeat clients across several rooms/phases. Common threads: fair, competitive pricing; strong 3D design/visualization process before construction starts; high craftsmanship on finish work (tile, cabinetry). One detailed negative review (2020) alleged stock-photo use and a subcontractor payment dispute — the company responded publicly and point-by-point, and it appears isolated relative to ~20+ other detailed positive reviews since.

402 Corral Ln, Austin, TX 78745, United States | +1 512-444-1580

Cumulative Rating: ★ ★ 4.8-5.0 (based on 350+ reviews)

CG&S Design-Build is a high-end Austin residential remodeling firm founded in 1957 by Clarence and Stella Guerrero (the name derives from "Clarence Guerrero and Sons"). Now a multi-generational, locally and nationally recognized design-build company, CG&S offers full-service design and construction for kitchens, bathrooms, home additions, and whole-home remodels. Services include 3D rendering, sunroom and porch construction, and sustainable/universal design. The firm positions itself as premium rather than budget-focused, with "hundreds of projects" completed over nearly seven decades in business.

Service Areas Mentioned: Austin, Buda, Bee Cave, Shady Hollow, Lost Creek, West Lake Hills, Barton Creek, Onion Creek, Manchaca.

Common Review Themes: : Clients highlight professionalism, punctuality, and reliability across multiple projects with the same firm over the years. Reviewers describe the team as treating customers "like family" given the decades-long local reputation. A recurring note: CG&S is explicitly not the cheapest option — reviewers frame this as a trade-off for higher quality and dependability rather than a complaint.

1700 Bryant Dr #101, Round Rock, TX 78664, United States | +1 512-551-8660

Cumulative Rating: ★ ★ 4.9-5.0 (based on 80+ reviews)

Freccia Group is an Austin/Round Rock-based residential and commercial construction firm, originally formed in 2016 as a real estate investment company before expanding into custom home building, renovations, and commercial build-outs. They specifically market home addition services including primary suite expansions, second-story additions, in-law suites, and multi-purpose room extensions, with an integrated design-build process using 3D renderings and virtual walkthroughs before construction begins.

Service Areas Mentioned: Austin, Round Rock, Cedar Park, Georgetown, Leander, Pflugerville, Lakeway, Bee Cave

Common Review Themes: : Residential clients consistently praise professionalism, responsiveness, and attention to detail, with several repeat clients across multiple projects. One detailed negative review specifically concerns their commercial division (poor subcontractor communication on a build-out) — residential/addition feedback appears more consistently positive.

11900 Acorn Creek Trail, Austin, TX 78750, United States | +1 512-649-2999

Cumulative Rating: ★ ★ 4.9-5.0 (based on 100+ reviews)

Austin Remodelers & Build is a woman-owned, licensed and fully insured design-build company. Their site explicitly frames home additions as a specialty ("expanding living spaces, blend additions seamlessly with existing architecture"), alongside kitchen and bathroom remodeling and full-home remodels. The company emphasizes an emotional/wellbeing angle in its messaging — homes shaping how people feel day to day — alongside standard licensing and insurance credentials.

Service Areas Mentioned: Austin, Cedar Park, Bee Cave, Pflugerville, Round Rock and Lakeway.

Common Review Themes: : Reviewers highlight strong project management (named reps Eric and Rotem come up repeatedly), clear communication, and coordination of subcontractor teams. Clients describe the process as collaborative on design decisions and note reliability in keeping to schedule.

2209-A Rutland Drive, Suite 100, Austin, TX 78758 | 512-937-1529

Cumulative Rating: ★ ★ 4.3-4.4 (based on 1700+ reviews)

Statewide Remodeling is the largest remodeling company in Texas (founded 1994, #18 nationally per Qualified Remodeling Magazine), serving Austin from a dedicated showroom. Important flag: their site and marketing center overwhelmingly on bathroom remodeling, walk-in showers/tubs, and window/siding replacement — room additions are also listed as a service category.

Service Areas Mentioned: Austin, Cedar Park, Georgetown, Hutto, Leander, Liberty Hill, Pflugerville, Round Rock, Spicewood

Common Review Themes: : Customers frequently praise individual installers/design specialists by name, describe the process as professional and well-communicated, and highlight quality of bathroom conversion work specifically. Separately, I found BBB complaints referencing unfinished addition work and inspection/follow-through issues — worth noting since it's a large company with a broader complaint footprint than the smaller firms.