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Find Demolition pros in Seattle

Avatar for DirtRaptor -
DirtRaptor -
5.0(
19
)

Serving Seattle, WA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"Great People, Got the job done quickly, safe and efficient. Crew was very polite and professional. Would recommend them to anyone. Fair Price for work performed."
Response time1 day
20 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Gaston Bros. Excavating, Inc.
Gaston Bros. Excavating, Inc.
4.4(
20
)

Serving Seattle, WA and surrounding areas

Approved

In business since 1980

Free estimates

Offers commercial services

"Gary and his crew worked very quickly and efficiently on a challenging demolition job that required a great deal of precision. They also did a drain field for my septic system and both projects were completed in 2 days. His crew were hard working, polite and left the job site swept, picked up and very clean. Gary is a pro! No contractor drama. He showed up on time and got right to work. I highly recommend Gaston Brothers Excavating."
Wall project
Wall project
Retaining Wall
Parking lot
Parking lot

+52

Response time1 day
Response rate87%
3 neighbors recently requested a quote
Avatar for Whitworth Excavating, Inc.
Whitworth Excavating, Inc.
5.0(
3
)

Serving Seattle, WA and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

"All personnel involved were great at their job. From the estimate through the completion, everyone was professional and thorough. What began as removing a concrete drive to allow a plumber access to the sewer main line, became their completing the entire project. This occurred due to the depth of the line. They completed the job quickly, with minimal inconvenience. While they were here, I couldn't have asked for a better experience for a significantly difficult repair."
Kitsap Humane Society
Kitsap Humane Society
Net Systems
Net Systems
Carriage Homes

+19

Response time2 days
1 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for JT Industrial, LLC
JT Industrial, LLC
4.8(
4
)

Serving Seattle, WA and surrounding areas

Approved

In business since 2018

Free estimates

Offers commercial services

"Josh and his crew did a drainage/erosion project that put an end to a threat that had plagued our property for decades. 7 foot deep curtain drains, multiple catch basins, drainage containment all working fabulously in our heavy rains of 21-22. Honesty, integrity, and very professional. We are thrilled with our outcome."
Development site
Grading
Manhole excavation
Manhole installation
Manhole excavation

+24

Response time1 day
2 neighbors recently requested a quote
Recommended by50%of homeowners
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Showing 1-10 of 132
FAQs for demolition projects in Seattle, WA

To determine if a wall is load-bearing, start by checking your home’s original plans or asking a structural engineer. Exterior walls always carry weight, but interior ones only do if they sit over a beam or run perpendicular to floor joists. If a wall lines up with posts in the basement or falls directly under the roof ridge, assume it’s load-bearing and call a professional before attempting to remove it with a sledgehammer.

Calculating the wall load and sizing the beam must be performed by experts to ensure structural safety. You need a structural engineer to evaluate all load aspects and determine the proper beam dimensions. A professional engineer performs precise calculations and advises on any necessary enhancements, such as larger footings for support. An inspector then verifies that the revised structure meets all safety and code regulations before the finishing work begins.

Hiring a structural engineer is essential for ensuring your home remains structurally sound during any major renovation. Their responsibility is to deliver expert assessments and design recommendations for load-bearing modifications. The average cost to hire a structural engineer is $500, with rates ranging from $350 to $800. Consulting a licensed, experienced engineer guarantees that every structural project, whether constructing a new home or remodeling an existing one, is completed safely and efficiently.

Almost all load-bearing wall removals require a permit as they support everything above it, and building departments want proof that the new beam can handle the weight. Pulling a permit triggers plan review and inspections that confirm the work meets local code and safety standards. Skipping this step can lead to fines or being forced to rebuild later, so have your contractor pull the permit before work starts.

Removing a load-bearing wall to create an entrance for a carport or covered patio is a task that comes with defined cost implications. This modification requires extra structural adjustments to ensure safety and proper integration with the adjoining space. When you convert a wall into an entryway, you can expect to pay between $3,200 and $9,500, with an average cost of $6,400. The additional work required for this conversion reinforces the home’s integrity and ensures compliance with applicable building codes.

The Seattle, WA homeowners’ guide to demolitions

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