Basement finishing in Broomfield & Boulder County
Turn an unfinished basement into bedrooms, a bathroom, an office or a media room that feels like part of the house. At the walkthrough we check ceiling height, where the furnace, water heater and ducts sit, and whether a bedroom needs an egress (escape) window. We handle permits and coordinate inspections where required.
- Licensed & insured
- 2-year workmanship warranty
- Written line-item estimate
- Permits when required
What basement finishing includes
A finished basement is a small remodel of its own: layout, framing, trades and finish, all below grade.
Layout planning
Where bedrooms, a bath and open space go depends on the windows, the stairs, the mechanical room and where the drains are.
- Bedrooms, offices, gyms
- Room for storage
Framing & insulation
Walls, soffits around ducts and beams, and insulation on the exterior walls.
- Soffits around ducts
- Insulated exterior walls
Bedrooms & egress
A basement bedroom needs an emergency escape opening, usually an egress window with a window well. We check this first.
- Egress windows & wells
- Head-height checks
Bathrooms & bars
A full or half bath and a wet bar. Drain location matters, and some basements need a pump to reach the sewer line.
- Full & half baths
- Wet bars
Electrical & low-voltage
Circuits, recessed lighting and outlets, coordinated with your low-voltage or AV installer if you have one.
- Recessed lighting
- Media & network wiring prep
Drywall, doors & floors
Drywall, doors, trim and flooring, so the space feels like part of the original house.
- Flooring for below grade
- Trim to match upstairs
Basements we've finished
Open any project to see every photo.
How basement finishing works
No pushy sales. You see the scope and the price in writing before work starts.
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Walkthrough
We look at ceiling height, egress (escape) windows, where the furnace, water heater and ducts sit, and any signs of moisture before you commit to anything. Walkthroughs typically take 30-45 minutes.
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Written line-item estimate
Framing, electrical, plumbing, egress, drywall and flooring as separate lines, so you can see what each room costs.
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Permits
Finishing a basement commonly needs a building permit. We coordinate permits and inspections when required.
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Build & inspections
Framing, rough plumbing and wiring, inspections, insulation, drywall, then finish. The owners frame, plumb, wire and hang the drywall themselves. We keep you updated around inspections, and changes get a written change order.
What drives cost and timeline
Basements vary more than their square footage suggests, so we don't publish prices. Your estimate is itemized, so you can see what each room and choice adds. The main things that move the number:
- Rooms and layout. An open rec room costs less than the same space split into a bedroom, an office and a bath.
- Plumbing. A bathroom or wet bar adds plumbing, and more if the drains sit below the sewer line and need a pump.
- Egress. If a bedroom needs a new egress window, that means cutting the foundation wall and digging a window well.
- Head height and obstacles. Low ducts, beams and pipes need soffits or rerouting, which adds framing and trade work.
- Moisture. Any water problem has to be fixed before walls go up. Finishing over it just hides it.
The timeline is set by permit review, the inspections between stages and material lead times. We keep you posted on the schedule, especially around each inspection.
Setting a basement budget? Our remodel planning guide explains what moves the budget and how to compare estimates line by line.
What we check before you commit
Egress for any bedroom, ceiling height under ducts and beams, access to the furnace, water heater, electrical panel and sump or radon system, and signs of moisture on the walls and floor. Flagging these at the walkthrough helps identify work that needs to be included in your estimate.
What clients say about their basements
RSRT finished our unfinished basement and turned it into the most used part of our house. Framing, bathroom, bar, and an office were all done exactly how we talked about during the walkthrough. Alex kept us updated around inspections so nothing was a surprise. Clean crew, no drama, and the end result looks like it was always part of the house
From the first walkthrough it was obvious Alex knew basements. He flagged egress, head height, and mechanical issues before we signed anything. The finished space has a bedroom, a media room, and a small workout area. The inspections and paperwork were all handled, and they coordinated with our low-voltage guy without stepping on toes. The basement doesn’t feel like an afterthought - it feels like part of the original house.
Basement finishing questions
Something else on your mind? Call (720) 392-4297 or ask in your estimate request.
Does a basement bedroom need an egress window?
Building codes generally require an emergency escape opening in a basement sleeping room, usually an egress window with a window well. If there isn't one where a bedroom would go, adding it becomes part of the plan. We check at the walkthrough and confirm requirements through the permit.
Do I need a permit to finish my basement?
Usually, yes. Finishing a basement typically involves framing, electrical and often plumbing, which commonly require a permit. We coordinate permits and inspections when required.
Can you add a bathroom in the basement?
Yes. Existing rough-in plumbing makes it simpler. Without it, we look at where the drains run, and if they sit below the sewer line, a pump may be needed.
Do you hire out the electrical and plumbing?
No. We do the electrical and plumbing ourselves and hold Colorado licenses for both, along with the framing, drywall and finish work. That means fewer hand-offs between trades. If the job needs concrete work, it goes to a concrete crew we work with regularly.
What about low ceilings, ducts and beams?
We measure head height at the walkthrough. Low ducts and beams are usually boxed in with soffits, and sometimes they can be rerouted. We'll tell you what's realistic before you commit.
Can you work with my own AV or low-voltage installer?
Yes. We coordinate with your installer so their wiring goes in at the right stage, before drywall.
How much does it cost to finish a basement?
It depends on the rooms, plumbing, egress and finish level, so we don't quote from a price list. You get a written line-item estimate after the walkthrough.
More of what we build
Kitchen remodeling
Layouts, islands, cabinetry, counters, tile and lighting.
Learn moreBathroom remodeling
Primary and hall baths, walk-in and steam showers.
Learn moreLoad-bearing wall removal
Open the floor plan with a beam that carries the load.
Learn moreWhole-home remodeling
Main-floor and whole-house remodels, planned as one project.
Learn moreCustom home building
New homes built around your lot and the way you live.
Learn moreHome additions
Room additions and kitchen extensions that add space.
Learn moreDeck building & repair
New decks, rebuilds and repairs, with stairs and railings.
Learn moreCommercial construction
New construction, remodels and tenant improvements for business spaces.
Learn moreWant to see finished work first? Browse recent projects or check the service area.
Finishing your basement?
Tell us what rooms you want and add a few photos of the space. We'll set up a walkthrough and follow up with a written line-item estimate.