7915 Mainland Dr, San Antonio, TX 78250, United States | +1 210-680-5626

Cumulative Rating: ★ 4.3-4.5 (based on 70+ reviews)

Founded in 1984 by Keith Moehle, KM Builders is a family-owned design-build company that has been transforming San Antonio homes through craftsmanship and service, offering kitchen remodeling, bathroom remodeling, and room additions. The company bills itself as having the largest in-house remodeling staff in the city, keeping most trades in-house for tighter quality control. It has a dedicated "Additions" gallery on its site with dozens of named room-addition projects (bedrooms, second stories, offices, sunrooms, casitas), and BuildZoom records 502 building permits under the company — signaling high project volume. It's BBB-accredited since 2002.

Service Areas Mentioned: Balcones Heights, Castle Hills, Grey Forest, Helotes, Lackland Air Force Base, Leon Valley, San Antonio, Shavano Park, plus Boerne.

Common Review Themes: Reviewers consistently praise the design process and showroom experience, calling out the "nice design team" and wide selection of materials. Multiple reviews mention thorough demo, framing, and finish work quality ("as well as I've ever seen"). A few complaints exist around project timelines and communication on specific additions/remodels, including one dispute over a rear-addition assessment. Overall sentiment skews positive, with repeat praise for craftsmanship on kitchen and bath transformations tied into larger addition projects.

4335 Vance Jackson Rd, Ste. #101, San Antonio, TX 78230 | (210) 413-8789

Cumulative Rating: ★ 4.6-4.8 (based on 50+ reviews)

Rhino Design Build, LLC transforms ordinary houses into dream homes and bills itself as San Antonio's premier room addition specialist, delivering seamless design and construction. The company is a full-service general contractor integrating modern building technology with timeless design, offering ADUs, in-law suites, second-story additions, garage conversions, and full remodeling. It's selective about projects and often maintains a waiting list due to demand. Room addition is arguably the single most prominent service on their entire website (dedicated URL, page, and blog content).

Service Areas Mentioned: San Antonio, Alamo Heights, Terrell Hills and surrounding areas.

Common Review Themes: Reviewers repeatedly highlight owner Danny Garcia's professionalism, responsiveness, and hands-on project oversight — clients note he stopped by regularly to check progress and answered all questions. Common praise includes clean job sites, protective coverings for floors during work, and finishing on time and within budget. Several reviewers specifically mention room additions, garage workshops, and mother-in-law suites as completed project types, with strong repeat-customer and referral sentiment.

14127 Jones Maltsberger Rd, San Antonio, TX 78247, United States | (210) 366-2380

Cumulative Rating: ★ 4.5-4.8 (based on 250+ Reviews)

Shaw Company Remodeling is a family-owned design/build contractor serving San Antonio homeowners since 2000, working with people who love their homes but need them to function better for how they live today. Its in-house designers and construction specialists collaborate from the start, keeping design and construction under one roof so projects stay coordinated and reduce surprises. Room additions are one of several core services (alongside kitchens, baths, cabinetry, and outdoor living), rather than the singular focus — less prominent than Rhino or KM Builders on this specific point.

Service Areas Mentioned: Alamo Heights, Balcones Heights, Castle Hills, Converse, Garden Ridge, Hill Country Village, Hollywood Park, Kirby, Live Oak, Olmos Park, San Antonio, Schertz, Selma, Shavano Park, Terrell Hills, Timberwood Park, Universal City, Windcrest.

Common Review Themes: Reviewers frequently praise qualified staff and reasonable pricing, especially for bathroom remodels, though some negative feedback exists alongside otherwise satisfied customers. One detailed review noted the timeline tripled versus projected due to subcontractor inexperience, but the final result was still viewed favorably. General sentiment: strong design consultation experience, solid craftsmanship, occasional scheduling/subcontractor hiccups.

10903 Gabriel’s Pl , San Antonio, TX, United States, Texas | +1 210-902-1027

Cumulative Rating: ★ 4.8-4.9 (based on 80+ Reviews)

GTex General Contracting positions itself as San Antonio's trusted contractor for creating extra rooms, expanded living areas, and functional spaces, delivering affordable and durable home additions across the metro. It's a local, family-owned, 20+ year veteran-founded business, BBB A+ accredited, specializing in kitchen/bath remodeling, full renovations, and additions.

Service Areas Mentioned: Bexar County and Guadalupe County, San Antonio and surrounding areas broadly.

Common Review Themes: Reviewers highlight Ryan (the owner) directly and consistently mention professionalism, fair pricing versus competitors, and dust/debris containment during work. Multiple reviews reference successful bathroom and kitchen remodels leading to repeat business for additional projects. Sentiment is very positive but the review sample size (per platform) is small.

431 Isom Rd, Suite 226, San Antonio, TX 78216 | (210) 349-6160

Cumulative Rating: ★ 4.3-4.5 (based on 10+ reviews)

Bobo Custom Builders is a family-owned custom home design and remodeling company serving San Antonio for more than 22 years, providing full-service remodeling tailored to each client's vision. Over 81% of its business comes from referrals, and Ken Bobo has built a reputation for demanding excellence from his team. Whole-home updates and room additions that modernize a house without losing its character are a core specialty.

Service Areas Mentioned: San Antonio and South Texas broadly.

Common Review Themes: Clients emphasize attention to detail, clear communication, and turning older homes into modern, cohesive spaces without losing original character. Reviews mention smooth design-to-construction transitions and satisfaction with finished kitchens/baths tied into larger remodels. Sample size is small enough that these themes should be treated as directional rather than statistically robust.