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New Key Construction

Home Builders in Walnut Creek, California
Ranked #7 in Walnut Creek | Grade B+
4.90 (29 reviews)

New Key Construction

Design-build home remodeling firm offering coordinated planning, permitting support, and construction execution for kitchens, interiors, ADUs, and whole-home remodels Serving homeowners across Walnut Creek, California.

Why Homeowners Choose This Business

A structured, design-build approach helps align scope, budget, and schedule from the outset. Homeowners highlight responsive communication and thorough site management that keeps projects moving. The team’s coordination with trade partners and inspectors supports code-compliant results on both modern and older homes Local experience that helps homeowners across Walnut Creek, California compare a more region-aware provider.

Service Area

Walnut Creek, California and nearby East Bay communities in and around Contra Costa County.

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How This Business Compares

A quick local comparison based on review strength, business detail, and local service fit.
  • Performs at or above the local average for Google rating.
  • Shows strong customer satisfaction signals based on review quality and volume.

Services Covered

  Renovation Services
  Design-Build Remodeling
  Kitchen Remodeling
  Bathroom Remodeling
  Whole-Home Renovation
  ADU Construction
  Home Additions
  Flooring Installation
  Interior Remodeling
  Historic Home Renovations
  Permit And Code Coordination
  Project Management
  Walnut Creek home builder

Services include design-build home remodeling, kitchen renovations, bathroom updates, whole-home and interior remodels, ADU conversions, and finish upgrades such as flooring, plumbing, and electrical coordination.


Reviews

Recent Reviews

4.90

(Based on 29 reviews)

Customers consistently mention responsive communication from the owner and project managers, with clear timelines and frequent updates. Many note careful attention to detail and a willingness to resolve issues quickly during construction. Work on kitchens, ADUs, and older homes is praised for quality and cleanliness. Pricing is described as transparent with thoughtful discussions around scope and code requirements.

Google Review
Ruby Gill on New Key Construction

We hired New Key Construction to renovate the interior of our most historic (1850 construction) Masonic Building in California.

Their entire staff, from Reggie (the owner) to Connor (foreman) to Elle (project manager) are professional and great to work with.

Elle’s attention to details during every step of the project yielded a beautiful outcome, and rendered the project a huge success. The building will be featured in one of our upcoming quarterly magazines, and we are delighted to showcase it, post renovations.

Google Review
Mark Sithi on New Key Construction

We worked with New Key Construction to remodel our backyard workshop and transform it into a 1 bedroom, 1 bathroom ADU for my parents to retire and live in.

New Key did an absolute outstanding job and we are so happy we chose them for one of the largest investments we've ever made.

- Quality Work - Reggie and his team do quality work; they do not cut corners, and they will always lean to do things the right way that is safe, compliant, and functional. You can feel the quality when you walk around; there is a meticulousness to the work that is hard to find anywhere else.

- Project Planning - We were assigned a project manager and a foreman who kept us updated very frequently on the state of construction. The work was completed on-time if you account for the realities of construction which were largely due to supply delays and/or the occasional coordinate of some competing work. To convert a workshop (where we literally stripped it down) to a livable, high-quality ADU in 5 months is impressive! Also, they showed up on-time every day and if they were going to be late (or not come), we would be told.

- Culture - Everyone that works at New Key Construction was a pleasure to work with; they hire people who care about the work they are doing and make an effort to get to know you. We could tell the employees enjoyed working at New Key, and it shows in the work.

We looked at several companies before choosing New Key. I wholeheartedly will say it was worth it - you get quality work, quality communication, a 10-year warranty, and people who legitimately care about you and your home. You won't regret it!

Google Review
Paul Boccellari on New Key Construction

After researching and interviewing several local contractors in the Pleasant Hill area, we chose to work with Reggie and the New Key Construction team to complete our kitchen remodel and update the flooring in the main areas of our house. From the start, Reggie was responsive and thoughtful in his approach to our scope of work and dedicated a lot of time to thoroughly review our wishlist, budget, and timeline as the project took shape. He was open, honest and realistic in every conversation and made us feel comfortable and ready for the work ahead.

Elle was our Project Manager and did a terrific job organizing the build schedule and juggling all of the moving pieces from start to finish. Even with covid-related material delays, she pushed hard to keep our project on track and stayed in constant contact with all of the vendors and contractors involved. She was quick to flag any issues that came up, explore solutions when needed, and took the time to make sure we were happy as the project progressed. She and Reggie were receptive to feedback and accountable when issues arose (fortunately, all were relatively minor).

It is evident that the New Key Construction team has a great working relationship with their subcontractors. All of the subs were friendly, timely, clean, and produced high-quality work. Having lived in the house while the work was completed, we could see first-hand that no corners were cut and nothing was overlooked! As an added bonus, they utilize the Buildertrend platform, which made it easy to track our finances, view when specific work was scheduled, and stay aligned on change orders.

It is obvious that Reggie and New Key take pride in their work and truly want what’s best for their clients. We had a great experience and love our new kitchen and floors!

Google Review
Ashley Ortega on New Key Construction

I bought an older home in Concord and moved in only to discover, during an easy re-flooring project with New Key Construction, that the old owner improperly installed appliances when I purchased that led to months and months of water damage in my kitchen! I was panicked - we had already spent a lot of money on the house and now we were looking at extensive water damage and mold in two major rooms of our home.

Reggie and his team helped me every step of the way. Because we were already working together on my flooring project, I didn't event think about calling anyone else. Reggie helped me coordinate with my insurance company and get the coverage I deserved, and what could have been money out of pocket, got covered and helped me totally rebuild my kitchen (where the water damage was) into a gourmet MASTERPIECE. This kitchen was so outdated when I moved in - I hated it. Now, it's my favorite room in the house and it raised the overall value of my home so much. Reggie and the team also helped me update my bathroom as well as my master closet (a custom job). After pics posted here.

If you're looking for an honest contractor to help you remodel your home, I strongly recommend Reggie and New Key Construction.

Google Review
Marie Ramagli on New Key Construction

NewKey has done an exceptional job remodeling my kitchen this summer. The attention to detail from the initial planning meeting, to setting up a daily schedule, sticking to it (yes a GC who meets commitments) and dealing with issues as they arise has been the best I have experienced in the Bay area. When challenges came up Reggie, Kreg and his subs resolved the issues within hours not days or weeks. My install included counter top, plumbing, flooring, tile backsplash, installation of appliances and coordination with a cabinet painter and customer cabinet modification contractor. They even came through when my appliance delivery and installers fell flat on their faces! No question I will use NewKey for my master bath remodel and actually look forward to it!

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Frequently Asked Questions

Public project photos and reviews reference kitchen remodels, interior renovations, ADUs, and updates in older homes. They follow a design-build process, coordinating planning, selections, permitting, and construction.

Homeowners typically begin with a consultation to align goals and budget, then move into design and scope development. Once plans and selections are set, the construction phase follows a defined schedule with regular updates.

Yes, reviewers describe successful projects in older structures, including addressing hidden issues and code compliance. The team is noted for careful investigation and swift resolution when surprises arise.

Reviews frequently mention prompt responses from the owner, foreman, and project managers. Clients report regular check-ins, clear scheduling, and transparent change discussions when conditions change.

Lead times vary by scope, design needs, and permitting requirements. It’s best to contact the company early to discuss timing, especially for larger remodels and ADUs that require detailed planning.
 Verified Listing

Opening Hours


  • Monday 9:00 AM – 5:00 PM
  • Tuesday 9:00 AM – 5:00 PM
  • Wednesday 9:00 AM – 5:00 PM
  • Thursday 9:00 AM – 5:00 PM
  • Friday 9:00 AM – 5:00 PM
  • Saturday Closed
  • Sunday Closed

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Business Details


Business Rating
4.90 (29 reviews) Featured BusinessPro Listing
Address
2890 N Main St #302, Walnut Creek, CA 94597
Phone
Business Type
general_contractor

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