Monument Signs in Boulder

Monument Signs for Boulder Businesses

Boulder's commercial corridors — Pearl Street, 28th Street, Arapahoe Avenue — are competitive retail environments. The city's Downtown district has specific sign restrictions on letter height and illumination. 303 Sign Company serves Boulder and Boulder County from our Longmont fabrication shop. We design, permit, fabricate, and install your sign with one team from start to finish.

We specialize in ground-mounted signs at property entrances and roadways for Boulder businesses of all sizes — from single-location retail to multi-site commercial properties. Every project includes a fixed-price quote, professional permit drawings, and our own licensed install crew.

Types of Monument Signs We Build

• Single-tenant monument: A standalone sign identifying one business — common for medical offices, standalone retail, and restaurants.
• Multi-tenant monument: Stacked panels or changeable copy for shopping centers and office parks where multiple tenants share one entrance sign.
• Illuminated monument: Internal or external lighting keeps your sign visible after dark — critical for businesses with evening traffic.
• Stone and masonry base: Brick, stone veneer, or cast concrete bases give a permanent, high-end appearance that complements upscale properties.

Permitting in Boulder

Monument signs almost always require a permit and often a site plan showing setback from the road. We handle the full permit package. In Boulder, sign permits are submitted through the city's building or planning department. Timelines vary — we factor local permit lead times into every project schedule we give you.

What It Costs

Monument Signs for Boulder businesses typically run $5,000 to over $50,000 depending on size, materials, and complexity. We provide fixed-price quotes — no surprises at installation.

Common Questions

How tall can a monument sign be?

Height limits vary by city and zone — typically 6-25 feet in commercial areas, with setback requirements from the road. We check your local codes before designing.

What materials are most durable?

Aluminum cabinet faces with an HDR print or dimensional letters are the most weather-resistant. We use commercial-grade materials rated for Colorado's UV exposure and freeze-thaw cycles.

Can we update tenant panels later?

Yes — if designed for it upfront, panels can be swapped when tenants change without replacing the entire sign structure.

For a full breakdown of types, materials, and our process, see our Monument Signs page.