+1-510-275-9994

contact@kjdemolition.com

EXPERT DEMOLITION &

EXCAVATION SERVICES

Proudly Serving the Entire San Francisco Bay Area

Licensed, Local and Insured

License #1056193

Demolition
Excavation
Building
General Engineering

KJ Demolition: Your Trusted Partner in Demolition & Excavation

At KJ Demolition, we bring over decades of experience delivering top-tier demolition and excavation services to residential and commercial clients throughout the San Francisco Bay Area. Licensed under both A and C-21 classifications in California, our skilled team specializes in precision, safety, and efficiency.

As a proud local business based in Pinole, CA, we’re committed to upholding the highest standards of quality and customer satisfaction. Whether you’re planning a commercial development or a home renovation, we tailor our services to meet your unique needs—on time and within budget.

Partnering with us means working with a reliable, dedicated team that values your vision and ensures your project’s success.

Ready to Start Your Project? Contact KJ Demolition Today!

Commercial & Residential Solutions

KJ Demolition delivers tailored solutions for both commercial and residential projects. For businesses, we handle large-scale demolitions, site clearing, and excavation with precision and efficiency, ensuring your project stays on schedule. For homeowners, we provide careful demolition and excavation services for renovations, new builds, and landscaping improvements.

With expertise in safety, efficiency, and attention to detail, we’re equipped to handle projects of any size, making us the trusted choice for reliable demolition and excavation services in the Bay Area.

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Why Choose Us

Choosing KJ Demolition means partnering with a team that values precision, safety, and reliability. With specialized licenses (A and C-21) and extensive experience in both demolition and excavation, we bring the expertise needed to handle projects of all sizes with unmatched professionalism. As a local Bay Area company, we take pride in delivering exceptional results while prioritizing customer satisfaction. From start to finish, we ensure your project is completed on time, within budget, and to the highest standards.

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Licensed & Certified Experts

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Extensive Industry Experience

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Tailored Solutions for Every Project

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Local & Trusted Bay Area Professionals

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Commitment to Safety & Precision

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Timely & Cost-Effective Service

Testimonials

Todd

Bay Area

I found KJ Demolition by chance when I was passing by an in-progress construction site. The site was immediately next door to a very popular coffee-house/public gathering area. I had noticed the tidiness of the construction site and how courteous the construction crew was to the passers-by. Out of a whim, I approached someone on the site for contact info. By chance, it happened to be the owner, Nick. He was very nice, and gave me a card. A couple months later, I called him for a project on my property that I had been planning for about a year. The project was an underground excavation for an expanded garage under my existing building in addition to new foundation for an in-law (ADU) on my lot. The site access was tricky, the structural work significant and due to the geo-slide conditions in my area, the project was not straightforward. That said, Nick came on site and had a bid to me within weeks. Most of the other contractors I contacted that were hard to nail down for appointments, talked “big” and overbid or simply did not show up. Surely, if you have done any construction, you know what I mean. KJ Demolition, however, was nothing but professional. They came in promptly with a fair and reasonable proposal. We closed the deal and moved forward. KJ Demolition crew showed up on the exact day we agreed upon. The office staff maintained regular communication and expectations were set (and met) throughout. The crew worked extremely disciplined hours. Even during the periods of “wait time” for city inspections, KJ Demolition stayed in regular contact and returned promptly when the site was ready. Resourcing is clearly organized with this company. KJ Demolition stayed on track, both from a schedule and budget standpoint. From a budget standpoint, we were precisely in sync — even with the minor changes that my architect and engineer presented mid-project. No surprises — which is the way it should be. The effort completed successfully. This is my 4th major ($200k+) renovation project, and KJ Demolition is without a doubt, the most organized and carefully orchestrated construction firm I have worked with to-date. My only regret is that I don’t have a new project to offer to them right now.

William

San Rafael

Working with contractors in the Bay Area can be challenging and expensive. I can certainly say KJ Demolition made it straightforward to get a fair bid for my construction project and get it done as I expected. Nick, the owner, is knowledgeable and honest. Daniela, at their office, is professional and polite. The exact kind of people I like to work with! Thank you all at KJ Demolition Construction.

Ava

San Francisco

KJ Demolition's staff made a complicated project go smoothly and on schedule. The crew was on site when they said they would be, and on task from the moment they arrived each day. I appreciated their responsiveness and flexibility, and was very impressed with the crew foreman, Joel, who is skilled, knowledgeable and was communicative and helpful during the entire project.

Jan

Crocket

I wanted to extend my sincere gratitude to you and your team for the exceptional work you did on our project. Your professionalism, attention to detail, and commitment to maintaining a clean, organized, and safe job site were truly impressive. Thank you for your hard work and dedication. It has been a pleasure working with you, and I look forward to collaborating on future projects.

Kent Moriarty

Bay Area

Thank you once again for your valuable feedback. Your input is instrumental in helping us enhance our services. If you would like, you can identify yourself in the space below or to remain anonymous leave the following spaces blank. Additionally, please do not hesitate to reach out if you have any questions or need further assistance. We appreciate your participation and trust in our company.

Ann

Bay Area

We definitely will share a review. We are so grateful to be able to work with a company that we can trust to do things right and act with professional integrity. Can't wait to pull the plastic off!!!

Eric Donnelly

Bay Area

I needed additional concrete parking at my house. Nick and his company, KJ Demolition came through with fantastic work. The job was pretty straightforward but the land did have a slight slope to it. KJ Demolition gave me great recommendations from their experience on number of piles, retaining wall, parking curbs, and even incorporated a pipe running under the concrete for future electrical system and irrigation that I requested. I would hire them again for any concrete work or anything else that they are willing to do. Their communication through the whole process was excellent, which is something that I value very highly.

Get a Free Quote

Ready to take the next step on your demolition or excavation project? Our team is here to provide you with a no-obligation quote tailored to your specific needs. Whether it’s a commercial development or a residential renovation, we’ll assess your project thoroughly and offer transparent pricing with no hidden costs. Reach out today and let us show you why KJ Demolition is the trusted choice in the Bay Area!