Revamp Your Workspace with Zero Downtime

Upgrade your property with commercial space remodels in the Spokane & Spokane Valley, WA, areas

Running out of room but not ready to move? Lion's Mane Construction offers expertly crafted home additions in Spokane, Mead, Spokane Valley, WA, and nearby areas to help you expand without relocating. Whether you're adding an extra bedroom, new living space, or a full ADU attachment, we guide the entire build from design to final inspection.


Our team understands how to blend new spaces seamlessly into your existing home, both visually and structurally. From permitting and planning to framing and finishes, Lion's Mane Construction ensures your home addition is done right the first time. Homeowners count on us for ADU builds and room additions that add value, comfort, and style.


Call today to schedule your home additions consultation before the next build slot fills!

Close-up of dark blue kitchen cabinets with gold hardware. Drawers and doors are visible, with a white countertop above.

Why local businesses trust our office

Our tailored solutions support your growth, image, and functionality:

A black checkmark in the upper left corner.

Full-Service Remodels

 We manage demolition, construction, electrical, and finishes for a seamless transformation

Black checkmark on a white background.

Custom Office Layouts

Reconfigure your floor plan for better flow, focus, and collaboration

Black check mark.

Modern Design Updates

Upgrade flooring, lighting, and surfaces to match your brand and style

A black checkmark indicating a positive selection or approval, set against a white background.

ADA & Code Compliance 

Ensure your remodel meets all regulations and accessibility standards

A black check mark on a white background.

Minimal Business Disruption 

We plan around your schedule to keep operations running smoothly

Secure your office renovation today—boost performance, style, and client appeal without delay!

Commercial Office Remodeling & Interior Build-Outs

Lion's Mane Construction provides commercial office remodeling and tenant improvement services for businesses throughout Spokane, Spokane Valley, and Eastern Washington. Whether you're updating an existing office, reconfiguring a commercial suite, or preparing a space for a new tenant, our team can manage the construction work needed to create a functional, professional environment that meets your business needs.

Commercial Office Remodeling & Build-Out Service

Commercial tenant improvements can range from targeted updates to complete interior transformations. Our team can assist with projects such as:


  • Office layout changes and interior reconfigurations
  • Commercial interior build-outs for new or expanding businesses
  • Complete office and commercial suite overhauls
  • New or modified walls, partitions, and interior spaces
  • Flooring, ceilings, doors, and other interior finishes
  • Electrical, plumbing, and other construction-related upgrades
  • Code-compliance upgrades and improvements
  • Updates to outdated or inefficient commercial spaces
  • Preparing vacant commercial spaces for new tenants


We work with business owners, property managers, and commercial tenants to coordinate improvements around the needs of the space and the goals of the project.

Modern conference room with glass walls, a long white table, black chairs, and a wall-mounted TV screen

Keeping Your Business Operational During Construction

We understand that commercial remodeling can affect your employees, customers, and day-to-day operations. When a project requires work in an occupied space, we can plan construction in phases to help minimize disruption. Phased construction may allow certain areas of your business to remain operational while work is completed in other sections of the building.


Our team works to coordinate the construction schedule, establish work areas, and communicate project progress so you know what to expect throughout the process. Careful planning and phasing can help keep your business moving while the improvements are underway.

Commercial Tenant Improvements in Spokane & Eastern Washington

From office remodeling in Spokane to commercial interior build-outs in Spokane Valley and throughout Eastern Washington, Lion's Mane Construction can help turn an existing commercial space into an environment that works better for your business.


Whether you're expanding into a new suite, updating an outdated office, or completing a larger commercial renovation, we'll help you understand the scope of work and plan the improvements around your goals.


Ready to discuss your commercial tenant improvement project? Contact Lion's Mane Construction to schedule a free walk-through estimate.