top of page

Precision machining since 1985

When it absolutely needs to be done right the first time

Prototypes, Small Lots

Large Parts, Complex Parts

Repairs & Maintenance

Done Right!



Full-Service Machining

Our full-service machine shop can machine most any part you need. We specialize in large parts and hard-to-work materials and provide boring, drilling, milling, tapping, turning and reaming services using both CNC and conventional methods.

Maintenance & Repair

With our extensive machinery experience, we can make or repair machinery parts that you can't find off-the-shelf.

Fabrication & Assembly

Working with local partners, WMW can provide one-stop service for one-off fabrications that include welding, metal forming, gear cutting, splining, heat-treatment, sandblast, and powder coating.

Small volumes

As a job shop we excel at one-offs, short-runs, prototypes and emergency repairs. We have the flexibility to meet customer needs for time-sensitive projects.

Large parts

Our shop has two 10-ton bridge cranes to handle large parts and machines that can turn up to 16 feet in diameter and mill parts up to 12 feet in size.

Wide range of materials

Our team has long experience with all kinds of mild and hardened steel, stainless steel, manganese, Inconel, plastics and many other materials.



Washington Machine Works has a full range of machines. This includes turning up to 16 feet in diameter and milling of very large parts. Our reliable conventional machines have been retrofitted with digital read outs for accurate machining. Our CNC software is up-to-date and compatible with new CAD models.




Washington Machine Works has a quality manual, rigorous inspection procedures and calibrated test equipment.

We are an approved vendor at many companies doing nuclear, government and other work governed by stringent quality systems


Washington Machine Works has been providing full-service machining services to industry and government since 1985. We work closely with our customers to machine unique parts.

Our team has has a large percentage of journeyman machinists and an average tenure at WMW of 15 years with an average machining experience of 20+ years. 

We have an outstanding reputation for quality work and great customer service. Our goal is to ensure your parts are made to your specifications the first time, every time.






For any inquiries, contact us by phone, email or the following form.

Success! Message received.

Government Contracting

We are a veteran-owned small business and have worked for a number of government agencies and the military over the years.


Cage Code: 7JUK4 (SBA Profile)

Contact Information

Tel: 206-767-2688

Fax: 206-767-6942

Shop Address

5211 1st Ave S 

Seattle, WA 98108

Hours: 7:00 a.m. to 3:30 p.m. weekdays

We have excellent access from I-5 and the Port of Seattle and an off-street loading area.


Deliveries are best made with a flat-bed trailer so our foklifts has access from either side.


We are often looking for good machinists looking to machine large, complex parts in a friendly job-shop environment.

See our Careers page

Deliveries & Pickups
bottom of page