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Find Basement remodelers in Black Diamond

Avatar for A TO Z HOME REMODELING LLC
A TO Z HOME REMODELING LLC
5.0(
31
)
Basement - Remodel

Serving Black Diamond, WA and surrounding areas

Approved

In business since 2024

Free estimates

Warranties offered

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Full kitchen remodel
Full kitchen remodel
Full kitchen remodel
Bathroom remodel
Full home remodel

+13

5 neighbors recently requested a quote
Recommended by9%of homeowners
Avatar for Topaz Remodeling, Inc.
Topaz Remodeling, Inc.
5.0(
141
)
Basement - Remodel

Serving Black Diamond, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Emergency services offered

"I hired Topaz Remodeling to replace my front porch, including tearing out the damaged surface, installing a proper drain (the original builder’s oversight caused major leaks), and repairing the resulting damage to the floor, hardwood, and basement. The owner’s communication was excellent, keeping me informed about schedules and progress. They even finished ahead of the estimated timeline. Omar, the project lead, was phenomenal. His recommendations elevated the final result, and his attention to detail was unmatched. The tilework is flawless, with precise measurements ensuring a polished look. The team delivered exceptional quality, turning a stressful situation into a seamless process. My new porch is beautiful and fully functional. I highly recommend Topaz Remodeling and will gladly use them again for future projects."
Kitchen Remodel
Bathroom Remodel
Kitchen Remodel
Bathroom Remodel
Kitchen Remodel

+63

Response time10 hrs
Response rate100%
295 neighbors recently requested a quote
Avatar for Be Home Remodeling
Be Home Remodeling
4.6(
83
)
Basement - Remodel

Serving Black Diamond, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"I called this company to get a quote for a bathroom remodel. Ben was scheduled to come on site and give me a quote. I felt very comfortable with the quote and Ben. They did a great job on my bathroom finishes and plans a head. I even remodel my kitchen afterwards with them, Ben is very professional and responsive who made this process very easy. I defiantly going to use them again in the future."
Response time9 hrs
Response rate100%
473 neighbors recently requested a quote
Avatar for Serge's Home Imprvmnt & Rnvtn
Serge's Home Imprvmnt & Rnvtn
5.0(
40
)
Basement - Remodel

Serving Black Diamond, WA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Serge did much more than flooring; he also installed electrical (lighting/ceiling fan & outlets) , bathroom vanities and enclosed an indoor storage area with custom doors. He is fair and an excellent worker. We especially appreciate his prompt communication. That work was done summer/fall 2022. Heâ s back now (summer 2023) for more home improvements."
Siding repair
Siding repair
Siding repair
Siding repair
Fence repair/build

+49

Response time1 day
18 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Northwest Builders & Renovation, Inc.
Northwest Builders & Renovation, Inc.
4.5(
82
)
Basement - Remodel

Serving Black Diamond, WA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"This company was efficient in their work and cleaned up nicely after themselves. I had a complete bathroom remodel after a water leak and they even did outside stair replacement with handrails to my front door. This company went above and beyond on their customer service. The only reason I gave them a 4.5 because I never knew their intended work schedule and was given a 3 day window with them leaving at noon without telling me if they were coming back after lunch. I didn't realize they were letting the tile set and the grout dry. I would have just liked the heads up for that, otherwise their craftmanship was spot on and their tile work was fantastic in the bathroom. Outside they had to do concrete and post work and those are level, Exceptional job well done for both crews."
House Remodel, 2025
House Remodel, 2025
House Remodel, 2025
House Remodel, 2025
House Remodel, 2025

+32

Response time3 hrs
Response rate99%
19 neighbors recently requested a quote
Avatar for Iconiq Construction, LLC
Iconiq Construction, LLC
4.9(
31
)
Basement - Remodel

Serving Black Diamond, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Warranties offered

"I hired Iconiq Construction Service for my kitchen remodel, and they did a fantastic job. The team was professional, friendly, and finished on time. I love my new modern kitchen!"
kitchen remodel
Kitchen remodel
addition project
bathroom remodel
bathroom remodel

+2

Response time1 day
Response rate94%
9 neighbors recently requested a quote
Avatar for BZR Remodeling
BZR Remodeling
5.0(
5
)
Basement - Remodel

Serving Black Diamond, WA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"I strongly recommend Bzr. We found them on Houzz. We started with a kitchen remodel and felt good about moving forward with our next projects with them. We then started our bathrooms. Sean and his crew did an amazing job. They were very respectful about our place, patched up and protect our home. Sean was very helpful with choosing and delivering materials. Overall we had an outstanding experience with them. Gaby was also such a pleasure to work with. Without a doubt we would hire them again."
Everett, Wa- Full Bathroom
Snohomish, Wa- Kitchen
Woodinville, Wa- Full Bathroom
Federal Way, Wa- Patio Renovation from old deck to stone walkways, retaining walls and pavers.
University Dr, Wa.- Kitchen

+7

7 neighbors recently requested a quote
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Showing 1-10 of 256
FAQs for basement remodeling projects in Black Diamond, WA

Finishing a basement turns unused square footage into livable space and returns up to 70% of what you spend when you sell your home. Beyond that resale boost, you gain a playroom, home office, or guest suite you can start enjoying right away. That mix of daily comfort and solid return on investment (ROI) makes basement finishing one of the smartest upgrades you can tackle.

In some parts of the country—especially lots on swamps, high water tables, or other wetlands—local codes prohibit basements. Saturated soil puts constant pressure on foundation walls and lets water seep in faster than any sump pump can handle. 

If your property sits on waterlogged ground, building on a slab or crawl space is often safer, more affordable, and code-compliant.

Most basements wrap up in four to eight weeks. Framing takes three to five days, with electrical and plumbing rough-ins following over the next week. Add five days for drywall, two to three for flooring, and another week for paint, trim, and punch-list items. 

Delays can happen if materials run late or your contractor’s calendar is packed, so build in a little cushion when you plan.

Whether a finished basement counts toward your home’s official square footage depends on local rules. Many areas only include below-grade space if it has code-approved egress, fully finished walls, ceilings, and floors, plus consistent heating. 

Check with your local assessor or building department before you start; meeting those standards can affect taxes, appraisals, and resale value.

Building codes require a checklist: dedicated heat and electrical service, a code-approved stairway, and at least one egress window or exterior door. Walls, ceilings, and floors must be fully finished and meet insulation, ventilation, and fire-separation standards. If you add a bedroom, you’ll also need a closet, proper clearances, and safe exits. If you change the layout later, be ready to update the space so every new room still meets today’s code.

The Black Diamond, WA homeowners’ guide to basement remodelings

From average costs to expert advice, get all the answers you need to get your job done.