5 Best Room Addition Contractors in Houston, Texas

Find Houston-area contractors specializing in room additions, home expansions, second-story additions, and garage conversions. Compare their experience, customer reviews, services, and service areas to identify a contractor suited to your home addition project.

H-Towne & Around Remodelers, Inc.

18733 Cypress Church Rd, Cypress, TX 77433 | (281) 477-3400

Cumulative Rating: ★ 4.8+ (Based on 150+ reviews on various platforms)

Cypress-based remodeling company led by J.R. Smith, a two-time NARI Contractor of the Year recipient, with over two decades serving Houston. Room additions are a headline service — the site features a dedicated project gallery with 25+ addition-specific photos among 118+ site-wide. They handle second-story additions, garage conversions, in-law suites, bedrooms, and porches, alongside kitchen and bath remodeling. BBB-accredited since 2011, with countless local references available.

Service Areas Mentioned: Cypress, Houston, Katy, Tomball, The Woodlands, Kingwood, Richmond, Fulshear, Pearland, Jersey Village

Common Review Themes: Responsiveness and hands-on supervision from J.R. and crew leads like Chemo and Jose. Reviewers consistently praise transparent, itemized estimates without "smoke and mirrors" pricing. Crews stay on schedule with daily communication and minimal dead time between trades. Clean integration of new additions with existing home structure. No significant negative pattern surfaced across available reviews.

Smart Remodeling LLC

12711 Fuqua St #106, Houston, TX 77034 | (832) 800-8889

Cumulative Rating: ★ 4.8+ (based on 100+ reviews)

Family-owned Houston company founded in 2010, originally focused on kitchen/bath work but now offering a dedicated room-addition service line for home offices, in-law suites, and expanded living space. NKBA-affiliated to stay current on industry trends, holds an A+ BBB rating, and is a member of GHBA and the Texas Association of Home Builders.

Service Areas Mentioned: Houston, Sugar Land, Pearland, Friendswood, League City, Richmond, Clear Lake, Pasadena, Webster

Common Review Themes: Project manager Hani is repeatedly named for professionalism, responsiveness, and clear step-by-step communication. Reviewers highlight transparent pricing and detailed contracts that prevent surprise costs. High-quality finish work on cabinetry, tile, and fixtures is a recurring compliment. A few reviews mention minor scheduling delays that management resolved quickly.

Tell Projects

5328 Prudence Dr, Houston, TX 77045, United States | +1 832-536-5436

Cumulative Rating: ★ 4.8-4.9 (based on 400+ reviews)

Founded in 2015 out of Southwest Houston as a small family business, Tell Projects has grown into a full-service general contractor with a dedicated "Room Additions" page covering master suites, ADUs, second-story additions, and home offices.

Service Areas Mentioned: Houston, Pasadena, North Houston, Baytown, Missouri City, Spring, Cypress, La Porte, Katy

Common Review Themes: Praised for handling complex structural work, including load-bearing wall removal and converting outdoor patios into new indoor space. Reviewers highlight personal attention from project managers who walk the property regularly during planning. Strong craftsmanship on custom-built elements. Clients often describe hiring Tell Projects after comparing multiple contractors and choosing them for reputation and attentiveness.

Texan Home Additions

21620 Hwy 6, Manvel, TX 77578, United States | +1 713-234-4211

Cumulative Rating: ★ 4.7-4.8 (based on 80+ reviews)

Family-owned, licensed general contractor based in Manvel with over three decades of combined experience, specializing specifically in home additions and renovations — reflected directly in the company name. Handles patio additions, garage builds, master suite additions, and full remodels. BBB A+ accredited.

Service Areas Mentioned: Serves Pearland, Alvin, Manvel, Richmond, Clear Lake, Rosenberg, Seabrook, Webster, League City, and Friendswood.

Common Review Themes: Praised for complex multi-structure projects combining patios, garages, and drainage work. Reviewers highlight design input that improved on their original plans and strong knowledge of remodeling/building trade-offs. One detailed negative review described a subcontractor mix-up on a kitchen renovation, which the company publicly acknowledged and said it corrected.

GB General Contractors

400 E Main St Tomball, TX 77375 | (281) 412-9988

Cumulative Rating: ★ 4.7-4.8 (based on 80+ reviews)

Family-owned design-build firm founded in 1979 by Gil and Pattie Boyles, with nearly 46 years in business. Room additions — including second-story additions — are a core specialty alongside kitchen/bath remodeling and Aging-in-Place/ADA-accessible renovation. GHBA and NAHB Remodelers members.

Service Areas Mentioned: Houston, Kingwood, The Woodlands, Spring, Cypress, Tomball, and Jersey Village.

Common Review Themes: Reviewers consistently praise the team — Gil, project manager Ryan, and office manager Carrie — for daily communication and staying on schedule and budget. Recurring praise for seamless integration of new construction with existing home details like matching doors, flooring, and trim. Proactive handling of unexpected issues found during demolition, such as outdated electrical brought up to code without drama or added stress.