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Find Basement remodelers in Sunnyside

Avatar for DH West Coast Construction LLC
DH West Coast Construction LLC
4.9(
56
)

Serving Sunnyside, WA and surrounding areas

Angi Approved

In business since 2009

Free estimates

Emergency services offered

"Very well, these guys were fantastic to work with and they did a beautiful job! I would highly recommend them. They worked well with us and were very patient with our requests. They were on time,cleaned up after everything and did a most beautiful job! I just can’t say enough. The improvements in our home are amazing!. Love it ."
Bathroom remodel
Bathroom remodel
Trex Deck
Kitchen Remodel
Kitchen Remodel

+5

Response time11 hrs
8 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Custom Valley Construction
Custom Valley Construction
5.0(
3
)

Serving Sunnyside, WA and surrounding areas

Angi Approved

In business since 1990

Free estimates

Emergency services offered

"John and Derek went ABOVE AND BEYOND with our bathroom renovation! Their attention to detail and quality work really shows! John did EXACTLY what he said he was going to do. They got the job done before Christmas! Very rarely do people exceed my and my wife's expectations. Custom Valley Construction did exceed all our expectations. We are looking forward to hiring them to build a 3 car garage and attached casita in the new year. I highly recommend them for any construction project. Thank you!"
Response time2 days
15 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Hammered LLC
Hammered LLC
5.0(
3
)

Serving Sunnyside, WA and surrounding areas

Angi Approved

In business since 2020

Free estimates

Emergency services offered

"I had Eric from Hammered LLC come and re hang some interior doors, secure kitchen cabinets and re case my windows and doors another contractor did that I wasn't to happy with. Eric was very professional and didn't bad mouth the other contractor's work or pick it apart. He understood the job at hand better than the other "contractor" and had the patience to deal with a mess someone else left behind. I will be calling Eric to work on ALL my rentals from now on!"
Additional Photos
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+11

Response time1 day
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Hartwig Construction, Inc.
Hartwig Construction, Inc.
4.9(
7
)

Serving Sunnyside, WA and surrounding areas

In business since 1990

For over 35 years,clients have relied on Hartwig Construction Inc. to provide high quality custom homes, light commercial building and design, remodels and additions.We have built a solid reputation in the Yakima Valley. Our integrity and experience allows us to commit to turn your visions of the completed project into reality.

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+3

Recommended by100%of homeowners
Avatar for LTJ Builders Inc.
LTJ Builders Inc.
5.0(
5
)

Serving Sunnyside, WA and surrounding areas

In business since 1972

Free estimates

Emergency services offered

We are a full service general contractor that has been serving Western Washington's construction needs since 1972.\nNew custom homes, Multi family, remodels, new commercial, commercial remodel, commercial and residential maintenance.

Jahnsen family lake house
Cook's Hill community church
New spray pool at the Great Wolf Lodge
Recommended by100%of homeowners
Showing 1-10 of 44
FAQs for basement remodeling projects in Sunnyside, 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 Sunnyside, WA homeowners’ guide to basement remodelings

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