"Summit Built transformed our 1960s ranch into a modern dream home. James was on-site every day, answered every question, and delivered two weeks early."
Licensed General Contractor · Austin, TX
Built Right.
Built to Last.
Full-service construction & remodeling for homes and businesses across Austin. Every detail managed, every deadline met.
What We Build
Our Services
Full-service general contracting — residential, commercial, and everything in between.
Home Remodeling
Kitchen, bathroom, basement, and whole-home renovations. We handle permits, subs, and timelines.
Room Additions
Extra bedroom, sunroom, garage conversion — we add square footage that matches your home's character.
Roofing & Siding
Roof replacement, metal roofing, hardie board, stucco, and vinyl siding installations.
Concrete & Foundations
Driveways, patios, walkways, slab pours, pier & beam foundations, and crack repairs.
Commercial Build-Out
Office, retail, and restaurant tenant improvements. Delivered on time, on budget.
Project Management
Hiring your own subs? We'll manage the schedule, quality control, and city inspections.
Photo of James & Team
25+
Years Built on Trust
Meet the Builder
Straight Talk.
Solid Work.
James Harmon started Summit Built with one rule: treat every client's home like it's your own. Over 25 years, that rule hasn't changed — just the number of satisfied customers.
We're fully licensed, bonded, and insured. No subcontracting to unknown crews. We hire proven tradespeople we've worked with for years.
- Texas Licensed General Contractor
- Fully bonded & insured — $5M coverage
- In-house crews, no unknown subs
- Written estimates, guaranteed pricing
Client Stories
What They're Saying
"We hired James for our restaurant build-out downtown. He dealt with every city inspector, every hiccup. Opened on time. That almost never happens."
"Our garage addition and patio came out absolutely perfect. Quoted us $0 in surprises — and meant it. The crew was respectful and cleaned up every day."
Let's Build Together
Get Your Free Quote
Residential and commercial projects. We'll meet on-site, understand your vision, and provide a detailed written estimate — free of charge.
LocationServing Greater Austin, TX
Round Rock, Cedar Park & Beyond
Round Rock, Cedar Park & Beyond
Phone(512) 555-0282
HoursMon–Fri: 7am – 6pm
Sat: 8am – 2pm
Sat: 8am – 2pm