About Us

About Coastal Chimneys & Demo LLC

At Coastal Chimneys & Demo LLC, we believe trust is earned through consistent action, clear communication, and dependable results. Founded by Dean Yost, a veteran driven by values of discipline, accountability, and service, we proudly provide expert chimney, masonry, demolition, and site services to homeowners, property managers, and contractors across Central, Southern, and Seacoast New Hampshire.

As a veteran-owned and locally-operated business, our core principles guide every project—no matter its size. We deliver skilled workmanship, communicate openly, and respect each client’s home or property as if it were our own.

Our Story

As a veteran, Dean Yost recognized the need for a company that prioritized accountability, genuine craftsmanship, and honest communication. He founded Coastal Chimneys & Demo LLC to bring these essential values into every project and interaction.

Today, we carry forward Dean’s vision of disciplined, respectful service, ensuring that every chimney sweep, masonry repair, waterproofing project, demolition, or site preparation we undertake is completed to the highest standards. Our steady growth and strong reputation are built project by project, client by client, through reliable, quality-driven work.

Today, that mission continues with every project we complete — one homeowner, one builder, and one property manager at a time.

We believe that lasting trust is built not through promises, but through real results — and that’s what we deliver, every day.

Our Mission

At Coastal Chimneys & Demo LLC, our mission is to provide exceptional chimney, masonry, and site services that homeowners and businesses can trust. Guided by discipline, accountability, and clear communication, we strive to set a higher standard of workmanship in our community.

Who We Serve

Our services are tailored to support a diverse range of clients, including:

  • Homeowners managing their properties
  • Property managers maintaining rental units
  • Builders and contractors in need of reliable site preparation
  • Real estate professionals needing inspections or repairs

Whether your needs are residential or light commercial, planned or urgent, you can count on Coastal Chimneys & Demo LLC for exceptional service and outstanding results.

Why Choose Us

At Coastal Chimney & Demo LLC, we provide dependable, high-quality chimney services to keep your home safe and efficient all year long. From inspections and cleanings to repairs and full removals, our experienced team is here to handle it all with care and expertise.

Veteran-Owned and Operated

We bring a disciplined, detail-driven approach to every job.

Certified and Thorough

Our sweeps and inspections meet or exceed industry standards for safety and quality.

Prompt and Reliable Service

We respect your time and schedule, arriving on time and completing work efficiently.

Clear, Honest Communication

You’ll receive a full report of findings — no upselling, no pressure, and no hidden costs.

TESTIMONIALS

What Our Clients Are Saying About Us

Renee Teresa
We had a great experience with coastal Chimney Sweeps! Dean solved a persistent issue with our pellet stove that others couldn't figure out. They were knowledgeable, efficient, and explained everything clearly. Now, everything works perfectly and we finally have our heat back. Highly recommend them and we will absolutely be using this company going forward!
Kate Donahue
Working with Dean has been a pleasure. He was quick to come out for a quote, provide a quote that day while onsite and talked me through what he was going to do. He shows up when he says he will, he is very thorough with attention to detail, and the job site when he leaves never looks like he was there except an amazing looking chimney! I would highly recommend Coast Chimney Sweeps to anyone.
Renee Teresa
We had a great experience with coastal Chimney Sweeps! Dean solved a persistent issue with our pellet stove that others couldn't figure out. They were knowledgeable, efficient, and explained everything clearly. Now, everything works perfectly and we finally have our heat back. Highly recommend them and we will absolutely be using this company going forward!
Jennifer Lewis
Fast, efficient, and incredibly meticulous! I had several quotes on our chimney for repairs and to add a cap - Dean provided fast, reliable service and was very trustworthy with his quote and recommendations. I highly recommend Coastal Chimney Sweeps - he will be the first I call every time!
Matt Miller
You usually don't get all three when it comes to price speed and quality. I was thrilled with how attentive and great the work done on my chimney was. Most companies were scheduling out months just to take a look. They were able to come out same day I reached out give me a quote and quickly move forward. Highly recommend!

Let’s Discuss Your Next Project

Looking for a trusted partner for chimney maintenance, masonry, demolition, or site work? We’re ready to help you move forward with confidence.