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Find Basement remodelers in Black Diamond

Avatar for Puget Sound Builders & Renovation
Puget Sound Builders & Renovation
5.0(
78
)

Serving Black Diamond, WA and surrounding areas

Approved

In business since 2006

Credit card accepted

Customers say: True professional

"We hired Puget Sound B&R for basement remodeling and Dan did a fantastic job managing the project. The crew was hardworking, respectful, and detail-oriented. Our basement now feels like a completely new living space. Great experience from start to finish with outstanding workmanship."
Bathroom Renovation
Basement Remodel
Bathroom Renovation
Basement Remodel
Kitchen Remodeling

+23

103 neighbors recently requested a quote
Recommended by1%of homeowners
Avatar for Be Home Remodeling
Be Home Remodeling
4.7(
79
)

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 rate99%
539 neighbors recently requested a quote
Avatar for Iconiq Construction, LLC
Iconiq Construction, LLC
4.9(
31
)

Serving Black Diamond, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Offers commercial services

"This company is built internally the right way. Extremely professional and everything is in house. I repeat...IN HOUSE. If you have ever dealt with a remodeling company that employs outsourced labor, it can be a mis-quote nightmare. Other companies pointed me to handy men for this job not realizing I might need or want more than that in the future. Thank you"
kitchen remodel
Kitchen remodel
addition project
bathroom remodel
bathroom remodel

+2

Response time1 day
Response rate94%
3 neighbors recently requested a quote
Avatar for BZR Remodeling
BZR Remodeling
5.0(
4
)

Serving Black Diamond, WA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"If your'e looking for trustworthy and stress free remodel, these are your guys. My wife and I were away for almost the entire project. Sean managed it wonderfully. He updated us every step of the way. Crew was great and respectful towards our home and neighbors. They did our master bathroom and hopefully we can start working on ideas for our guest bathroom. Excellent job BZR if i could give more than a 5 star I would."
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

11 neighbors recently requested a quote
Avatar for Groundworks
Groundworks
4.3(
313
)

Serving Black Diamond, WA and surrounding areas

Approved (Corporate)

In business since 1995

Free estimates

Emergency services offered

"They made my cracked driveway look like new. With the stabilizing they did, itâ ll last another 100 years! Very happy with my basement also!"
Foundation
Foundation
Foundation
Concrete
Concrete

+16

Response time2 days
164 neighbors recently requested a quote
Recommended by83%of homeowners
NWPM Construction LLC
4.5(
17
)

Serving Black Diamond, WA and surrounding areas

Approved

Super Service Award Winner

Free estimates

Emergency services offered

Customers say: True professional

"NWPM was a subcontractor for a bathroom remodel. They were prompt and responsive -- they showed up when they said they would, and did good work. They installed a subfloor, vanity, toilet, shower door, and an exhaust fan with necessary conduit. I don't know about their pricing because they were a subcontractor, but I would hire them based on their responsiveness and the quality of the work performed."
Redo stairs rails with black stain
Bathroom remodel
Interior remodeling
Remodeling - Kitchen & Bathroom Project
In the process of applying stain.

+30

4 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for SmartDecks LLC
SmartDecks LLC
4.4(
45
)

Serving Black Diamond, WA and surrounding areas

Approved

In business since 1990

Free estimates

Warranties offered

"Little pricey, but you pay for expertise. He made my repair a priority and was in and out very quickly. He also took time to give me tips on upkeep. Great customer service, I would use him again!"
Patio Roof with Fireplace
Patio Roof with Fireplace
Big Waterproof deck
47 neighbors recently requested a quote
Recommended by100%of homeowners
Your Home Builders, Inc.
5.0(
1
)

Serving Black Diamond, WA and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

Response time2 days
Response rate86%
Recommended by100%of homeowners
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Showing 1-10 of 249
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.