---
title: "Cornerstone Construction — General Contractors | Houzz"
canonical_html_url: https://www.houzz.com/professionals/general-contractors/cornerstone-construction-pfvwus-pf~1510768910
markdown_url: https://www.houzz.com/md/professionals/pf~1510768910.md
entity_type: LocalBusiness
business_name: "Cornerstone Construction"
category: ["General Contractors"]
image: https://st.hzcdn.com/fimgs/05b31b1b0a8de61c_8925-w400-h400-b0-p0--.jpg
address: "Mi Wuk Village, California, United States"
latitude: 38.0289
longitude: -120.1494
phone: "(209) 352-3354"
website: https://www.cornerstoneconstructionca.com/
rating: 5
review_count: 2
best_of_houzz_awards: 1
followers: 9
last_updated: 2026-09-23
---

# Cornerstone Construction

> Calaveras & Tuolumne County's Finest Remodeling & Renovation Company

Original Houzz profile: [Cornerstone Construction](https://www.houzz.com/professionals/general-contractors/cornerstone-construction-pfvwus-pf~1510768910)

## Professional summary

- **Primary category:** General Contractors
- **Location:** Mi Wuk Village, CA
- **Serves:** Sonora, Twain Harte, Mi Wuk Village, Pinecrest, Tuolumne
- **Houzz rating:** 5.0 out of 5 (2 reviews)
- **Best of Houzz:** 1 award (2022), for Service.

## About

### Houzz Badges

- Houzz Pro Software User
- 10 Ideabook Saves
- Responds Quickly

### Business highlights

- Responds Quickly

Cornerstone Construction is Tuolumne and Calaveras County's premiere residential and remodeling and renovation company. 

Our mission is providing quality work and superior service each and every time we get in front of one of our customers. We provide our customers with innovative ideas, using the most current products on the market. 

Our detail-oriented team works together hand-in-hand to cater to the individual needs of each of our customers on every installation. Our dedicated and professional employees are committed to doing their jobs efficiently and correctly. 

In fact, most of our new customers are referrals from other satisfied clients. Whether you need your entire home renovated or just one room remodeled, call Cornerstone Construction today!

### Services Provided

- Home Remodeling
- Bathroom Remodeling
- Kitchen Remodeling
- General Contracting
- Home Additions
- New Home Construction
- Home Extensions
- Deck Building
- Garage Building
- Shower Installation
- Concrete Construction
- Modular Home Additions

### Areas Served

- Sonora
- Twain Harte
- Mi Wuk Village
- Pinecrest
- Tuolumne

## Business Details

| Field | Value |
| --- | --- |
| Business Name | Cornerstone Construction |
| Address | Mi Wuk Village, California, United States |
| Phone | (209) 352-3354 |
| Website | https://www.cornerstoneconstructionca.com/ |
| License Number | 943756 |
| Followers on Houzz | 9 |

## Contact

- **Houzz profile:** [Cornerstone Construction](https://www.houzz.com/professionals/general-contractors/cornerstone-construction-pfvwus-pf~1510768910)
- **Website:** https://www.cornerstoneconstructionca.com/
- **Phone:** (209) 352-3354

## Credentials

- **Best of Houzz:** 1 award (2022), for Service.

## Reviews

**Overall rating: 5.0 out of 5 — 2 reviews**

*Aspect averages:*
- Work Quality: 5.0
- Communication: 5.0
- Value: 5.0

### Featured Review

**★★★★★ — mtnmom77, March 2015**

> The contractor, Sham Wilk, was helpful from the moment we called him until the job was finished. ALWAYS kept appointments and answered every phone call from start to finish. He helped with design ideas when I was at a loss and I am 100% satisfied with all the recommendations he made during this process. When my ideas were out-of-the-box, he made sure I got exactly what I wanted. His subcontractors are the best of the best and those that supply materials are the highest of quality.. First class in every way!

### All 2 reviews

**★★★★★ — HU-120176468, April 2021**

> We are working with Cornerstone Construction (Sham Wilks) on building our New Home.  We would not leave this project that we have worked so VERY HARD to save for the past 25 years of our life to just any Contractor. There are too many reasons why we chose Sham, but to name just a few is: Sham's Dedication to his "CRAFT" - to say he is Extremely Detailed is putting it mildly - there has not been 1 time that we have called / text / or emailed Sham that we didn't get an IMMEDIATE response back - Sham is UP-FRONT and HONEST about EVERYTHING.  His Ideas and Suggestions are "Exceptional" as well as Cost Saving - he does not sweat the small stuff and he takes it upon himself to handle the stressful things. BUT MOST OF ALL....Sham is making this once in a lifetime journey "FUN" for us.  Sham Wilks is just an Outstanding Human being - we are "truly-truly" Blessed to have Cornerstone Construction as our Contractor!!!

## Selected projects

- [Bathroom Renovation](https://www.houzz.com/hznb/projects/bathroom-renovation-pj-vj~2965470)
  - Location: Mi-Wuk Village, CA
  - Photos: 2
- [Indoor Renovations](https://www.houzz.com/hznb/projects/indoor-renovations-pj-vj~2965474)
  - Location: Mi-Wuk Village, CA
  - Photos: 3
- [Kitchen Renovations](https://www.houzz.com/hznb/projects/kitchen-renovations-pj-vj~2965472)
  - Location: Mi-Wuk Village, CA
  - Photos: 3
- [Additions & New Construction](https://www.houzz.com/hznb/projects/additions-and-new-construction-pj-vj~2965479)
  - Location: Mi-Wuk Village, CA
  - Photos: 4
- [Renovation Process](https://www.houzz.com/hznb/projects/renovation-process-pj-vj~2965482)
  - Location: Not specified
  - Photos: 3

[See all 5 projects](https://www.houzz.com/professionals/general-contractors/cornerstone-construction-pfvwus-pf~1510768910)

## Video

- [Company video](https://player.vimeo.com/external/840716419.m3u8?s=f7a2f290d0ac77949e30e7f9ac0923a34f1cb8fa&oauth2_token_id=1384357804)

## Frequently Asked Questions

**Are you licensed, bonded, and insured?**
Yes, we are fully licensed, bonded, and insured. Our California Contractors License number is 943756. We pride ourselves on being a premier, fully compliant home remodeler in Twain Harte, ensuring peace of mind for all our clients.

**Do you handle permits and inspections?**
Absolutely. We are experts in navigating local permits, building codes, and zoning requirements in Twain Harte, CA, and surrounding areas. We manage the entire process of acquiring necessary documentation and coordinating inspections, ensuring your project runs smoothly and compliantly from start to finish.

**What kind of projects you specialise in?**
We specialize in a wide range of residential projects, including new home construction, comprehensive home remodeling, kitchen and bathroom remodels, ADUs, room additions, cabin remodeling, and backyard renovations. We also offer design-build services to bring your vision to life from concept to completion.

**How do you help prevent projects from going over budget?**
We prioritize accurate cost estimation and detailed project planning from the outset. Our team provides an accurate picture of your project's costs and a realistic timeline, and we offer cost-saving solutions. We manage budgeting closely to ensure we meet your expectations while staying within your financial plan.

**What warranty do you provide on labor and materials?**
Yes, we do provide a warranty on our labor and materials. Our commitment to quality means we stand behind our work. We'll discuss the specifics of your project's warranty during our consultation to ensure you have complete confidence in our services.

*FAQ content may be generated based on the Pro's Houzz profile and website.*

## Ideabooks

- [Pool Ideas](https://www.houzz.com/ideabooks/119771555/list/pool-ideas) — 4 ideas

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

---

*Source: Houzz professional profile. Reflects the profile as of 2026-09-23.*