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Your Trusted Commercial Plumbing Partner in Seattle, WA
Diamond Plumbing & Heating is a family-owned commercial plumbing company serving the Greater Seattle, WA region. With decades of combined experience, we specialize in commercial plumbing system installations, certified medical gas setups, and hydronic heating solutions for schools and healthcare facilities. Our team is licensed, bonded, and union-affiliated with Local 32, ensuring adherence to the highest safety and quality standards. We hold King County Small Contractors License #1741 and SBE Certification #S000024345, demonstrating our commitment to excellence. Our services extend across Northgate, Shoreline, Fremont, Georgetown, Edmonds, and surrounding communities, providing tailored plumbing solutions for new construction and tenant improvement projects.

We prioritize superior customer service, utilizing advanced techniques and equipment to deliver reliable, code-compliant results. Our expertise in medical gas systems ensures healthcare providers maintain safe, efficient operations. As a locally trusted partner, we combine technical proficiency with personalized service to meet diverse commercial plumbing needs. Our reputation for integrity and value has been built through consistent delivery of high-quality workmanship and client-focused solutions.
Services
Commercial Plumbing Medical Gas Setup Hydronic Heating Plumbing System Installation Tenant Improvement Plumbing
Highlights and features
  • We are a family-owned business with decades of commercial plumbing experience.
  • Our team is licensed, bonded, and union-affiliated with Local 32.
  • We hold King County Small Contractors License #1741 and SBE Certification.
  • Specialists in certified medical gas system installations for healthcare facilities.
  • Serving Seattle businesses across Northgate, Shoreline, Fremont, and beyond.
Associations and certifications
  • Local 32
  • King County SCS License #1741
  • SBE Certificate #S000024345
Services
Commercial Plumbing
Diamond Plumbing & Heating provides comprehensive commercial plumbing solutions for new construction and renovation projects. Our licensed team installs, repairs, and maintains plumbing systems in businesses, ensuring compliance with local codes and operational efficiency. We specialize in tenant improvement plumbing for rental properties across Seattle.
Medical Gas Setup
Certified medical gas system installations for healthcare facilities, including oxygen and nitrous oxide systems. Our technicians follow strict safety protocols to ensure reliable, code-compliant setups for dentists, clinics, and hospitals in the Greater Seattle area.
Hydronic Heating
Specialized hydronic heating system installations and maintenance for schools and commercial buildings. This energy-efficient solution circulates heated water through pipes to provide consistent, cost-effective heating tailored to large facilities' needs.
Plumbing System Installation
Full-scale plumbing system installations for commercial properties, including water supply, drainage, and fixture setup. Our union-affiliated team uses advanced techniques to ensure durable, high-performance systems that meet modern business requirements.
Tenant Improvement Plumbing
Custom plumbing solutions for tenant improvement projects, optimizing functionality in rental properties. We work closely with property managers to deliver efficient, code-compliant upgrades that enhance tenant satisfaction and property value.
Questions
What commercial plumbing services do you offer?
We provide full-service commercial plumbing including system installations, repairs, medical gas setups, and hydronic heating for businesses in Seattle.
Are you certified for medical gas installations?
Yes, we are certified medical gas system installers with experience in oxygen and nitrous oxide systems for healthcare facilities.
Which areas do you serve?
We serve Seattle and surrounding communities including Northgate, Shoreline, Fremont, Georgetown, and Edmonds.
What credentials do you hold?
We are licensed under King County SCS #1741, SBE-certified, and union-affiliated with Local 32 plumbers.
Do you handle tenant improvement plumbing?
Yes, we specialize in tenant improvement plumbing projects for commercial rental properties across Seattle.
How can I request service?
Call us at 206-696-2460 or use our contact form to discuss your commercial plumbing needs.