About Mizen Construction

Founded by Mark and Ciaran in 2014, Mizen Construction is a premier residential building company specializing in high-end remodels and custom builds throughout the Bay Area. With a focus on full-scale home transformations, from foundational work to finishing details, we’ve built our reputation on a commitment to superior craftsmanship, transparent communication, and delivering projects on time and within budget.

Group of eleven men posing outdoors on a rooftop with city skyline in the background, wearing MIZEN branded clothing and hats.
  • Every project begins with a partnership

    EVERY PROJECT BEGINS WITH A PARTNERSHIP

    At Mizen Construction, we believe that every project begins with a partnership. From the initial consultation, we collaborate closely with homeowners, architects, and designers to ensure a clear understanding of the build process, timelines, and, most importantly, how to maximize value for the client’s budget. Our team is dedicated to providing a stress-free experience by breaking down each phase of construction and offering ongoing updates, so there are no surprises along the way. We pride ourselves on being approachable and responsive, always ready to answer questions and offer expert guidance.

  • Geometric drawing of an outline square with sections divided by vertical, horizontal, and half circle lines.

    THE HIGHEST STANDARDS IN CONSTRUCTION

    With over two decades of combined experience in Bay Area construction, we’ve built lasting relationships with top-tier tradesmen and subcontractors.

    These trusted partnerships enable us to maintain strict quality control and consistency across every aspect of the project, whether we’re installing cutting-edge home systems or hand-crafting custom finishes. Our projects reflect the highest standards in construction—using only the best materials and techniques to bring modern, functional, and beautiful spaces to life.

  • Geometric drawing of an outline square with sections divided by vertical, horizontal, and circle lines.

    COMMITMENT TO DETAIL AND PRECISION

    Every home we remodel is a testament to our commitment to detail and precision. From seismic retrofits and foundation work to custom kitchens, luxury bathrooms, and innovative outdoor spaces, our work combines structural excellence with a refined aesthetic.

    At Mizen Construction, our goal isn’t just to build homes—it’s to create environments where our clients can live, entertain, and grow, knowing that their vision has been realized with care, integrity, and unmatched expertise.

Services

  • Close-up of concrete being poured over steel rebar at a construction site.

    FOUNDATIONS & SEISMIC RETROFITTING

    We can handle any concrete and seismic retrofitting work. From footings to shear walls, we can construct your project to any specifications your engineer and architect need.

  • View of a wooden building under construction with scaffolding, showing the framework of the structure against a blue sky.

    SHORING & FRAMING

    Our crews have extensive experience in all wood and steel framing techniques and standards. From mud sills to rafters, we can build it ground up.

  • Close-up of a sports ice hockey rink with red lines and face-off circles on the ice.

    MECHANICAL TRADES

    With over 20 years building in the Bay Area, we've built a strong network of skilled licensed trades. From hydronic floor heating to custom aluminum roofing, we’ve got you covered.

  • Exterior of a house with white siding, showing four new black-framed windows, some covered with protective plastic, with sunlight casting shadows.

    WINDOWS, EXTERIOR SIDING, DECKS, FENCES & STAIRS

    From footings to shear walls, we can construct your project to any specifications your engineer and architect need and handle any concrete and seismic retrofitting work. 

  • Interior view of a room under construction with drywall and electrical wiring, large windows showing an outdoor yard.

    INSULATION, DRYWALL, & PLASTERING

    We have the experience and skills to provide superior installation of all types of insulation and subsequent wall finishing. We take it from top-tier insulation installation to a level 5 drywall finish - no problem.

  • Four circular disks with colored segments, arranged in a 2x2 grid, each divided into black and a different color segment: blue, orange, yellow, and dark blue.

    INTERIOR FINISHES

    Pieces that bring the whole project together: From custom tile and stonework to specialty cabinets to closet interiors, we’ve got the finishes to your project organized and looking clean.

Meet the team

A man with short dark hair, a light beard, wearing a black polo shirt with the yellow and black logo of Mizen Construction, standing against a plain white background.

Ciaran Moloney

PARTNER

A man with curly light brown hair and blue eyes, smiling, wearing a black polo shirt with a yellow and black logo that reads "MIZEN CONCRETE" on the chest and a yellow emblem on the sleeve, standing against a plain white background.

Mark Lucey

PARTNER

A man with long, wavy gray hair, wearing a black polo shirt with the logo 'Mizen Construction,' standing against a white background.

Spencer Maki

BUSINESS MANAGER

  • "These guys are very professional and 100% trustworthy. Their prices are fair and their work is great. Did I mention that they are trustworthy? In a city full of contractors that make the majority of their money by extorting their customers with ridiculous change orders and $100/hr subcontractors, Ciaran and Mark are a welcome addition. l've been burned by unscrupulous contractors in the past and will be using these guys from now on."

    — Raymond F

  • "We hired Mizen to do an almost complete remodel of our home. Their prices were extremely fair and they stayed within budget. No surprises along the way. They are very transparent with any problems that arise and always had options for us to choose from to continue moving forward. They are also a great group of guys. There work is top notch and l'd highly recommend working with them!"

    — Phillip

  • "I can't say enough about Ciaran and his Irish crew. We had a 10 experience with this customer experience oriented team. We went through a full home remodel in Noe Valley. Ciaran was focused on making sure we stayed on time, within budget and that we were completely satisfied. I would highly recommend Mizen! These guys are amazing and fun to work with."

    — Glo G.

  • "Ciaran and his crew from Mizen are absolutely top-notch. We hired them for a complex, multi-unit renovation of our beloved 1920's era flats in the city. This involved everything from foundation and seismic work to full demolition and rebuilding of every aspect of the home. For one of the units this meant restoring complicated curved ceilings and original gumwood trim - done to perfection. Mizen's communication, craftsmanship, timeliness, and value surpassed our expectations. We enthusiastically recommend them to you for your next building project."

    — Howard R

  • "I've worked with a lot of contractors on various remodeling and home repair projects over the last few years, and Ciaran and Mark from Mizen are some of the best l've met. An awesome experience from start to finish. I was truly impressed with the quality of the work and we absolutely love our new front steps. Without question, we'll be using these guys for all of our general contracting needs going forward."

    — Chad Hi

  • "We hired Ciaran and Mark for a small but complicated renovation of our 1906 home. They were great! Trustworthy, responsive, and quality contractors, that came in on time and on budget. I work with a lot of builders and these are some the best that I have come across in 10 years of construction. There team is also great. We were home with 2 young kids for a portion of the renovation and Mizen accommodated for us perfectly making it a much easier and low stress environment. Would highly recommend them."

    — lan M

  • "Mizen did a project for us on the front steps of our Victorian and we couldn't have been more pleased with the experience. We chose to go with them based on their professionalism and communication, and in the end we knew we'd made the right choice. Our overall expectations were truly exceeded by this team.""

    — Molly P