Basement Remodeling in Boise, ID: Plan and Hire

Define the rooms and investigate existing concerns

Prepare a sketch showing proposed rooms, storage, stairs, windows, and equipment access. Explain whether you want a family room, office, bedroom, bathroom, or separate living quarters. Give each bidder the same priorities and mark which features you could remove if the proposal exceeds your budget.

For a bedroom, have the designer confirm emergency escape requirements, ceiling height, and the suitability of existing openings with the city before ordering windows. For separate living quarters, confirm the proposed use and approval path before requesting a construction price.

Show bidders any leaks, stains, cracks, odors, and previous repairs. Request a separate investigation and repair scope for unresolved water entry. Keep that work distinct from flooring and wall finishes so you can review the proposed repair before approving enclosure.

Put permits and inspection duties in writing

Boise requires a building permit to finish a basement as living space, move or add walls, or change window and door openings. Its interior-work guidance also identifies removal of wall coverings to expose framing as a permit trigger. [1]

The city requires electrical permits for added wiring and outlets, plumbing permits for new fixtures and piping changes, and mechanical permits for ductwork and bathroom exhaust work. Have the contractor identify each applicable permit and name the person responsible for obtaining it. [1]

Request a schedule covering design, permit review, construction, inspections, and completion. Have the contractor explain which inspections must occur before closing walls or ceilings, who schedules them, and how corrections affect the schedule. Connect payments to agreed work milestones you can review.

Test radon before settling the enclosure plan

The Idaho Department of Health and Welfare recommends testing the lowest level where people spend time. Its guidance describes short-term tests lasting 3–7 days, best done in winter, and long-term tests lasting up to one year for a better annual average. Follow the test instructions and keep the results with your project documents. [2]

The department recommends action at 4.0 pCi/L or higher, consideration of mitigation between 2.0 and 4.0 pCi/L, and further testing to confirm results. If mitigation forms part of your project, have a certified radon professional coordinate the system route and access with the remodel contractor. [2]

The state's radon cost ranges below cover different purchasing scopes: DIY parts and professional installation. Use them to identify a separate budget item if testing indicates mitigation. Request a property-specific proposal that explains the installation, finish repairs, and follow-up testing. [2]

Check credentials and compare complete bids

Idaho requires registration rather than general-contractor licensure. Nonexempt construction jobs exceeding $2,000, including materials and labor, trigger registration requirements. Obtain the bidder's registration number and verify current status with the state. For hired electrical, plumbing, and mechanical work, Boise directs homeowners to contractors with the applicable state credentials. [1] [3]

For covered residential contracts exceeding $2,000, the general contractor must provide an initial disclosure before entering the contract and retain your signed receipt. The disclosure addresses rights concerning insurance proof, lien waivers, title insurance, and a surety bond. Request it with the proposed agreement. [3]

Compare demolition, repairs, framing, trade work, insulation, finishes, flooring, and cleanup as separate items. Check fixture allowances and exclusions. Require written approval of changes and an explanation of how the contractor will price concealed damage discovered during demolition.

Request separate prices for optional work such as a bathroom or enlarged window opening. Discuss crew access, dust control, material storage, and utility interruptions before choosing a bidder. Set the budget and schedule from the agreed scope rather than an advertised per-square-foot figure.

Idaho radon guidance: parts and installation cost ranges

Match the proposed work to the next planning step

Your hiring checklist

1. Prepare a shared layout with proposed uses, finish selections, and equipment access.
2. Collect photographs and records of leaks or previous repairs.
3. Arrange radon testing and retain the results.
4. Confirm the approval path for bedrooms, separate living quarters, and window changes.
5. Verify contractor registration, trade credentials, and insurance.
6. Compare matching allowances, exclusions, and optional-work prices.
7. Record permit duties, inspection coordination, payment milestones, and change approvals.

Frequently Asked Questions

Can I perform the basement work myself?

Idaho's owner registration exemption covers owners doing their own work on their own land who do not intend to sell within 12 months. If you plan to sell, confirm eligibility with the state. Boise says homeowners acting as subcontractors on permitted work must obtain the permits and perform that work themselves. Use appropriately credentialed contractors for hired trade work. [1] [3]

Does painting an existing basement require a building permit?

Boise exempts interior painting and floor coverings from building-permit requirements. Exposing framing, adding partitions, changing openings, or altering trade systems introduces permit questions. Describe the complete project when checking requirements. [1]

What should I request before final payment?

Request inspection records, warranties, operating instructions, and the agreed completion review. Idaho's Contractors Board says the general contractor must provide a signed completion disclosure within a reasonable time before final payment. It must list subcontractors, material suppliers, and rental equipment providers with a direct contractual relationship to the general contractor who supplied materials or performed work valued above $500. [3]