---
title: "4Sigma — General Contractors | Houzz"
canonical_html_url: https://www.houzz.com/professionals/general-contractors/4sigma-pfvwus-pf~566927435
markdown_url: https://www.houzz.com/md/professionals/pf~566927435.md
entity_type: LocalBusiness
business_name: 4Sigma
category: ["General Contractors"]
image: https://st.hzcdn.com/fimgs/6ca3654205a2d4d5_9497-w400-h400-b0-p0--.jpg
address: "2603 Camino Ramon Suite 200, San Ramon, California 94583, United States"
latitude: 37.7562
longitude: -121.9522
phone: "(925) 525-5898"
website: https://4sigma.us
rating: 5
review_count: 1
last_updated: 2026-09-05
---

# 4Sigma

> Industry Leading Build Solutions in San Ramon, California

Original Houzz profile: [4Sigma](https://www.houzz.com/professionals/general-contractors/4sigma-pfvwus-pf~566927435)

## Professional summary

- **Primary category:** General Contractors
- **Location:** San Ramon, CA
- **Serves:** Fremont, Hayward, Livermore, San Ramon, Pleasanton, Dublin, Danville, Mountain House, Discovery Bay, Piedmont, Blackhawk, Byron
- **Houzz rating:** 5.0 out of 5 (1 review)

## About

### Houzz Badges

- Houzz Pro Software User
- Houzz Pro Certified - Builder
- Locally owned
- Family owned
- Free estimate
- Provides 3D Visualization
- Houzz Pro Certified

### Business highlights

- Locally owned
- Family owned
- Free estimate
- Provides 3D Visualization
- Houzz Pro Certified

4Sigma is a full-service construction and project management company specializing in residential remodeling and design. We provide high-quality solutions for partial or full home renovations, including kitchen and bathroom remodels, flooring, bedroom and living room updates, fireplace transformations, room additions, and more. Our team also offers expert design plan services to help bring your vision to life with precision and style.

### Services Provided

- Home Remodeling
- Bathroom Remodeling
- Kitchen Remodeling
- General Contracting
- Home Additions
- Custom Homes
- New Home Construction
- Home Extensions
- Accessory Dwelling Units (ADUs)
- Deck Building
- Flooring Installation
- Garage Building
- Outdoor Kitchen Construction
- Project Management
- Tile Installation
- Countertop Installation
- House Framing
- Window Installation
- Shower Installation
- Concrete Construction
- Exterior Door Installation
- Stair Installation
- Laminate Flooring Installation
- Drywall Installation
- Demolition
- Foundation Construction
- Crown Molding Installation
- Lighting Installation
- Baseboard Installation
- Stucco Installation
- Foundation Repair
- Subfloor Installation
- Stone Installation
- Floor Leveling
- Drywall Texturing
- Linoleum Flooring Installation
- Electric Fireplace Installation
- Stucco Repair
- Tile Cutting
- Water Heater Installation
- Range Hood Installation
- 3D Rendering
- Bathroom Plumbing
- Carpet Installation
- Carpet Sales
- Countertop Sales
- Custom Folding Doors
- Custom Garage Doors
- Custom Kitchen Cabinets
- Deck Design

### Areas Served

- Fremont
- Hayward
- Livermore
- San Ramon
- Pleasanton
- Dublin
- Danville
- Mountain House
- Discovery Bay
- Piedmont
- Blackhawk
- Byron

### Typical Job Cost

$25,000 - 300,000

## Business Details

| Field | Value |
| --- | --- |
| Business Name | 4Sigma |
| Address | 2603 Camino Ramon Suite 200, San Ramon, California 94583, United States |
| Phone | (925) 525-5898 |
| Website | https://4sigma.us |
| License Number | 1134839 |

## Contact

- **Houzz profile:** [4Sigma](https://www.houzz.com/professionals/general-contractors/4sigma-pfvwus-pf~566927435)
- **Website:** https://4sigma.us
- **Phone:** (925) 525-5898

## Reviews

**Overall rating: 5.0 out of 5 — 1 review**

*Aspect averages:*
- Work Quality: 50.0
- Communication: 50.0
- Value: 50.0

### All 1 review

**★★★★★ — Lohith Kothapalli, April 2025**

> I recently worked with 4Sigma for a full interior renovation project at my home in Dublin, CA, and I can confidently say that their work made a huge difference—not just in the look and feel of the house, but in helping me successfully sell it!
>
> From the beginning, the team was professional, detail-oriented, and incredibly responsive. They remodeled the entire kitchen, transforming it with sleek quartz countertops, a new sink, faucet, backsplash, and freshly painted cabinets. The result was modern, clean, and exactly what today’s buyers are looking for.
>
> They also renovated both bathrooms with neutral tones, contemporary tiles, updated fixtures, and glass shower enclosures—elevating the overall aesthetic and adding real value. The front and backyard landscaping, front door repair, junk removal, and AC repair were the finishing touches that really made the property shine during showings.
>
> The investment was absolutely worth it. Thanks to their thoughtful upgrades, I was able to sell the house quickly and at a great price. Highly recommend 4Sigma if you're prepping your home for sale—they know how to make a property market-ready in the best way possible!

## Selected projects

- [Remodel of Kitchen, Flooring, Removing Load Bearing Wall](https://www.houzz.com/hznb/projects/remodel-of-kitchen-flooring-removing-load-bearing-wall-pj-vj~7605637)
  - Location: Pleasanton, California
  - Photos: 5

[See all 1 project](https://www.houzz.com/professionals/general-contractors/4sigma-pfvwus-pf~566927435)

## Ideabooks

- [Moe's Ideas](https://www.houzz.com/ideabooks/173058904/list/moe-s-ideas) — 9 ideas

[See all 1 ideabook](https://www.houzz.com/ideabooks/users/4sigma)

---

*Source: Houzz professional profile. Reflects the profile as of 2026-09-05.*