A local remodeling company, not a national franchise
We’re a local remodeling company, not a franchise and not a call center. Firm Remodeling has been doing this work for over a decade, all of it in south King County. When you call, you talk to the people who’ll actually be on your job. The owner is on site at some point during every project. We don’t hand you off to a salesperson, and we don’t subcontract your bathroom or kitchen out to a crew we’ve never met. The same people who start your remodel are the ones who finish it.
We’re licensed and bonded in Washington under license number FIRMRRL783PU, and we carry general liability and workers’ comp. If you want a certificate of insurance for your records before we start, we’ll send one over. That matters more than usual with remodeling, because you’re trusting a crew to work inside your home for weeks at a time. If you want to read more about how we work, here’s more about our team and history.
Bathroom remodeling in Black Diamond, WA
Bathroom remodeling is the work we do most. In Black Diamond that runs the full range, from older homes in the original town grid that still have their first bathroom, to newer houses out in Ten Trails where owners want to upgrade a builder-grade primary bath into something they actually like.
We handle the whole job: demo, plumbing, waterproofing, tile, the shower pan, vanities, fixtures, lighting, and paint. The single most requested project we get is a walk-in shower conversion, where we pull out an unused tub-and-shower combo and put in a curbless or low-curb walk-in. We also do full primary-bath remodels with double vanities and freestanding tubs, plus smaller second-bathroom updates. A tub-to-shower conversion in a standard 60-inch alcove usually takes five to seven days. A full gut bathroom takes longer, and we’ll give you a real timeline before we start instead of one that quietly slips two weeks once the work begins. If you’ve been looking up bathroom remodeling near you and want an actual number for your space, we’ll come measure it. You can also read more about our kitchen and bathroom remodeling work.
Kitchen remodeling in Black Diamond, WA
The kitchen is where most families actually live, so when it doesn’t work, you feel it every day. We remodel kitchens in Black Diamond at every level, from a cabinet refresh with new doors, counters, and a backsplash, to a full layout change where we take down a wall and open the space up.
Most of our kitchen projects fall into one of three jobs. A cabinet refresh on the existing footprint runs about two to three weeks. A full cabinet replacement on the same layout runs three to five weeks, depending on how long the cabinets take to come in. Moving walls, plumbing, or gas pushes the project toward five to eight weeks and starts to overlap with a whole-home remodel. We work with semi-custom and custom cabinets, and we have local shops we order from regularly. For countertops, quartz is what most people pick, but we install granite and butcher block too. If you searched for kitchen remodeling near you, call (206) 773-8264 and we’ll walk through your kitchen with you. No sales pitch.
Basement remodeling in Black Diamond, WA
A lot of the newer homes in Black Diamond, especially out in Ten Trails, were built with unfinished or partly finished basements that have real square footage sitting unused. We finish them. That means framing, insulation, drywall, flooring, lighting, and trim, and we turn the space into whatever the house needs: a family room, a guest suite, a home office, a gym, or a theater room.
If you want a bedroom down there, we cut in an egress window so it’s legal and safe. If you want a full bathroom, we handle the rough-in and, where the layout calls for it, a sewage ejector pump. We pull the permits and schedule the inspections so you’re not the one sitting on hold with the city. Basement projects are some of the most cost-effective square footage you can add to a house, since the shell is already built. If basement remodeling near you is what brought you here, the answer is yes, we do that, and Black Diamond is a short drive for us.
Whole-home remodeling in Black Diamond, WA
Sometimes the project isn’t one room. People buy a solid house in a good Black Diamond neighborhood and want to update the bathrooms, the kitchen, the floors, and the paint all at once, instead of remodeling one room a year for the next decade. If you searched for home remodeling near you and the job is bigger than a single room, that’s a whole-home remodel, and we’ve done several of them.
These projects need more planning up front: finish selections, scheduling around plumbing and electrical inspections, and usually a temporary kitchen setup if you’re staying in the house while we work. We walk you through all of that before any demo starts. We don’t take on every whole-home job, since scheduling depends on what we already have lined up, but we’ll always come look and give you an honest read on budget and timeline.
Permits and the Black Diamond coal mine hazard area
Here’s something that catches people off guard in Black Diamond. The town was built on coal mining, and parts of the city sit over old mine workings. Because of that, the city has a coal mine hazard review for construction in certain mapped areas, on top of the normal building permit. For most interior remodels it never comes into play, but for projects that touch the foundation, add square footage, or sit inside a mapped hazard area, it can. We’ve worked through Black Diamond’s permitting before, so we know when this applies and when it doesn’t.
Black Diamond also runs its own permit office instead of sending everything to King County, so the process is a little different than it is in some neighboring towns. We handle the application, the submittal checklist, and the inspection scheduling for you. If you want to read the requirements yourself, the City of Black Diamond permit center keeps the applications and handouts posted. Either way, we pull the permits, we schedule the inspections, and we don’t start work that needs a permit without one.
What a remodel costs in Black Diamond, WA
Every project is different, but homeowners always want a ballpark before they call, so here’s roughly what our work runs. These are real ranges for the kind of jobs we do in the area, and you get a written, line-itemed estimate so you can see exactly where the money goes.
- Bathroom refresh with a new vanity, tile, and fixtures: 8,000 to 15,000 dollars
- Full gut bathroom with a new shower, layout changes, and all new finishes: 18,000 to 40,000 dollars
- Standalone shower remodel: 7,000 to 14,000 dollars
- Kitchen cabinet refresh with counters, backsplash, and paint: 20,000 to 35,000 dollars
- Full kitchen cabinet replacement on the same footprint: 40,000 to 70,000 dollars
- Basement finish with framing, drywall, flooring, and lighting, no bathroom: 35,000 to 60,000 dollars
- Adding a full bathroom to a basement: 15,000 to 25,000 dollars more
- Egress window for a legal basement bedroom: 4,000 to 7,000 dollars more
Where you land inside those ranges comes down to materials, the condition of whatever is behind the walls, and how much the layout changes. We’ll give you a firm number after we see the space.
How a project goes, from first call to final walkthrough
The process is the same whether you’re in the old part of town or out in a newer Ten Trails build. You call or fill out the form, and we book a time to come look at the space. The visit takes about an hour. We measure, check the plumbing and electrical, ask about your budget and timeline, and talk through what’s realistic. You don’t need to have it all figured out before we get there.
Within three to five business days you get a written estimate with demo, materials, and labor broken out separately, no vague “miscellaneous” line. If you haven’t picked tile yet, we note it as an allowance with a dollar figure attached so you still know what you’re working with. If the estimate works, we sign a contract, take a deposit, and schedule the start. Lead time usually runs three to eight weeks, and bathrooms book fast in summer.
When the crew starts, we protect your floors and keep the dust to the work area. You have one point of contact for the whole job. If something changes mid-project, we put it in writing and get your sign-off before we do the work, not after. We pull permits, schedule inspections, and walk the finished project with you at the end. We don’t ask for the final payment until you’re happy with it.
Remodeling work near Black Diamond
Black Diamond is one stop on a route that covers most of south King County, so if you’re just outside town or have friends in a neighboring city, we probably already work there. Take a look at our remodeling projects in nearby Covington, the jobs we handle around Kent, our work down in Renton, and the larger kitchen and bath projects we take on in the Issaquah area and out in Hobart. You can also browse before-and-after photos from recent projects to get a feel for the work.
Frequently asked questions
Do you really come out to Black Diamond, or only Maple Valley?
We come to Black Diamond. Our shop is in Maple Valley, just up the road, and Black Diamond is one of the towns our crews work in most weeks. Travel isn’t a charge, it’s part of doing business out here. The only thing distance affects is which day we can fit in your estimate visit.
How much does a bathroom remodel cost in Black Diamond, WA?
It depends on the scope. A basic refresh with a new vanity, tile, and fixtures usually runs 8,000 to 15,000 dollars. A full gut remodel with a new shower, a layout change, and all new finishes typically falls between 18,000 and 40,000 dollars. We give free in-home estimates, so you’ll know the real number before you commit to anything.
Do the old coal mines in Black Diamond affect remodeling permits?
For most interior remodels, no. Black Diamond does run a coal mine hazard review for construction in certain mapped areas, and it can apply to projects that touch the foundation or add square footage. We’ve worked through the city’s permitting before and will tell you up front whether it affects your project.
How long does a remodel take?
Most bathrooms take two to three weeks. A kitchen runs two to five weeks depending on cabinet lead time and whether the layout changes. A basement finish depends on its size and whether we’re adding a bathroom. We give you a realistic timeline before any demo starts.
Are you licensed and bonded in Washington?
Yes. Our license number is FIRMRRL783PU, and we carry general liability and workers’ comp. We can send a certificate of insurance before the job starts if you want one for your records.
Can you finish a basement in a Ten Trails home?
Yes. A lot of the newer Black Diamond homes were built with unfinished basements, and finishing them is a big part of our work. We frame, insulate, drywall, add flooring and lighting, and handle egress windows or a basement bathroom if you want them. We pull the permits and schedule the inspections.
If you’re ready to talk about your project, call (206) 773-8264 or fill out the quote form on this page. We’ll come look at the space, talk it through, and put together a written estimate. No pressure, no obligation.
Firm Remodeling LLC
26424 233rd Ave SE, Maple Valley, WA 98038
(206) 773-8264
