Calframe Construction Inc.is a second-generation wood framing company serving the entire Bay Area. Founded and led by Mark Muhn, Calframe has built a solid reputation grounded in craftsmanship, accountability, and integrity.
From large-scale multifamily developments to custom homes, Calframe is trusted by developers, builders, and general contractors who demand consistent quality, clear communication, and dependable results.
Our approach is simple: do honest work, communicate clearly, and deliver what we promise.
That commitment has made Calframe a go-to framing partner for some of the Bay Area’s most respected builders.
From structural framing for multifamily projects to detailed architectural framing for luxury homes, we deliver precision, safety, and reliability every time.
Durable, clean, and consistent exterior finishes that enhance both protection and appearance. We install a variety of siding materials with careful attention to detail and alignment.
We understand that every project comes with challenges, tight schedules, changing conditions, and high expectations. That’s why our clients trust Calframe for ourconsistency, dependability, and craftsmanship.
Our core values guide everything we do:
Integrity
We do what we say we’ll do.
Accountability
We take responsibility for results.
Craftsmanship
We take pride in every cut, nail, and frame.
With Calframe Construction Inc., you’re not just hiring a contractor; you’re partnering with a team that values precision, professionalism, and long-term relationships.
Featured Projects
We’re proud to have contributed to some of the Bay Area’s most beautiful and well-crafted homes. Here are a few of our recent and ongoing projects:
We provide framing and construction services throughout the Bay Area, California, including San Jose, Palo Alto, Los Altos, Woodside, Gilroy, Menlo Park, and surrounding cities.
2. What type of projects do you specialize in?
We focus on large multifamily framing projects and custom homes. Our team is experienced in handling complex builds that require efficiency, precision, and clear communication.
3. Do you work with homeowners directly?
We primarily work with general contractors, developers, and custom home builders. However, we also take on select homeowner projects that align with our expertise.
4. How do you ensure quality and accountability on each project?
We maintain a high standard of on-site supervision, detailed communication, and team accountability. If issues arise, we address them quickly and logically to keep the project moving forward.
5. What makes Calframe different from other framing contractors?
Our commitment to integrity, transparency, and efficiency
sets us apart. We’re not just framers, we're partners invested in delivering quality work and maintaining strong relationships with every client.
6. Do you provide estimates or bids?
Yes. Our process starts with a qualifying call, followed by a detailed bid and follow-up to ensure that all project expectations and scopes are clearly defined.
7. How can I get started with Calframe Construction?
You can contact us directly by phone or email, or send your project details through our website’s contact form. We’ll respond promptly to discuss your needs and next steps.
8. Are you licensed and insured?
Yes. Calframe Construction Inc. is a fully licensed and insured framing contractor
in California, ensuring peace of mind for all partners and clients.
9. How long does a typical framing project take?
Project timelines vary based on size and complexity. Smaller custom homes can take a few weeks, while multifamily developments may span several months. We always provide a clear schedule before work begins.
10. What materials do you use for framing and siding?
We use premium-grade lumber and durable exterior materials
sourced from trusted suppliers, ensuring every project meets engineering standards and long-term performance requirements.
