Basement contractors in Denver

DO YOU SERVE DENVER?

Yes, we serve Denver and 13 nearby cities through one vetted basement contractor. They handle finishing, remodeling, bathrooms, bars and in-law suites, with a free on-site estimate and a written quote.

  • Denver, Jefferson, Arapahoe, Adams, Douglas, Boulder and Broomfield
  • One contractor calls you, nobody else

Get your free Denver quote

Free on-site estimate. Written, itemised quote. No obligation.

Your details go to one local contractor. Nobody else calls you.

Denver services

Basement services in Denver

Basement bathrooms

Full baths and powder rooms.

Wet bars

Bars, kitchenettes, beverage centers.

In-law suites

Apartments with egress and kitchen.

Denver basements

What makes Denver basements different?

Dry air, swelling clay

The air here is dry, but snowmelt and sprinklers still wet the clay under many slabs. Wet clay swells, so basement walls are framed to float as the slab moves.

Radon through the slab

Colorado has high radon potential statewide. Your contractor has the bare basement tested before framing, so any fix goes in while the walls are open.

Escape windows for bedrooms

Each new basement bedroom needs an escape window and well. The window is permitted with the build and priced as its own line in the quote.

Denver pricing

What does a basement cost in Denver?

$30K to $90K

Typical full finish, metro Denver. Source: one local builder's 2026 cost guide, checked September 2026.

Read the Denver cost guide

What moves the price

Size and layoutSquare footage, ceiling height and how many rooms you want.
Bathrooms and barsPlumbing is usually the biggest single cost line.
Egress and waterEgress windows for bedrooms and any waterproofing first.

Choosing a contractor

How to choose a basement contractor in Denver

Does a basement contractor need a license in Denver?

Yes. The City and County of Denver licenses contractors through Community Planning and Development.

Licensing is a two-step process. The applicant must first hold a supervisor certificate or a state electrical or plumbing license, or employ someone who does.

Owners who run their own job must also hire contractors licensed in Denver for any work they do not do. Other metro cities set their own contractor rules, so ask where your contractor is licensed.

What should a Denver basement quote include?

A good quote prices every part of the job as its own line. One Denver builder warns that many bids leave out permits, inspections, dumpster fees and cleanup, then add them later.

Look for lines covering floating wall framing, a radon test and any egress window. A quote that skips them can leave you paying for them mid-build.

The same builder notes that electrical and plumbing work in Colorado needs licensed tradespeople. Ask who does that work and whether they pull their own trade permits.

Should you trust a price per square foot?

Treat it as a rough guide. One Colorado basement company calls it the most common way to quote a basement and the least accurate.

Fixed costs cause the problem. A bathroom or wet bar costs about the same in a small basement as in a large one, so the per-foot figure swings with size. An itemised quote after a site visit gives you the real number.

What should you ask a Denver basement contractor at the estimate?

Ask how they handle the soil, the radon and the paperwork. Their answers show how they treat Front Range basements before you sign anything.

  • Which cities and counties they hold licenses in
  • Who holds the permit and books each inspection
  • Whether the quote includes permits, inspections and cleanup
  • How they frame walls on a slab that moves
  • Whether they test for radon before framing
  • Whether the price is fixed or can move

How does Basement Remodeling Co. choose your contractor?

We match each Denver homeowner with one vetted, independent, licensed basement contractor for the metro. You fill in a short form and that contractor contacts you.

The contractor visits, prices the job in writing, pulls the permits and builds it. You deal with one company from the estimate to the final inspection.

Sources: Denver Community Planning and Development, contractor licenses (September 2026) · Denver Community Planning and Development, homeowner permits (September 2026) · One Denver builder's 2026 basement finishing cost guide (September 2026) · One Colorado basement company's 2026 cost guide (September 2026)

Questions

Denver basement questions

Straight answers. Ask your contractor anything else at the free estimate.

What is the average cost to finish a basement in Denver?

One Denver builder puts most metro Denver finishes at $30,000 to $90,000, or about $45 to $100 per square foot.

What is the most expensive part of finishing a basement?

Usually the bathroom. One Denver builder calls it the largest single cost, at $8,000 to $20,000 depending on whether plumbing is already roughed in.

Do I need a permit to finish my basement in Colorado?

Yes. Denver, its suburbs and the counties each issue permits for basement finishes. Your contractor files it and books the inspections.

Which parts of metro Denver do you cover?

Denver and 13 nearby cities across Jefferson, Arapahoe, Adams, Douglas, Boulder and Broomfield counties, including Aurora, Boulder and Castle Rock.

How fast can I get an estimate?

Send the form and your contractor contacts you to book a visit at a time that suits you. You get the written quote after the visit.

Get your free Denver estimate

Get a free on-site estimate from one vetted local basement contractor.