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Business Details
50+ Years
experience
Emergency
services
Trusted HVAC & Plumbing Contractors in Phoenix Since 1945
Since 1945, W D Manor Mechanical Contractors has been a cornerstone of Arizona's mechanical contracting industry. Our expertise spans HVAC systems, plumbing solutions, medical gas installations, and process piping, serving commercial and industrial clients with precision and innovation. We prioritize proactive collaboration during pre-construction phases, leveraging advanced BIM technology and a team of seasoned professionals to ensure projects remain on time, within budget, and free of defects. Our 23,000-square-foot fabrication facility enables efficient production of high-purity systems, while our 24/7 emergency services underscore our commitment to reliability.

Recognized for uncompromising quality, we maintain industry leadership through continuous employee development, safety protocols, and community engagement. Our legacy of excellence is built on a foundation of teamwork, technical expertise, and a relentless focus on client satisfaction. From dialysis box innovations to large-scale commercial projects, we deliver mechanical solutions that meet exacting standards. As a family-owned business since its founding, we remain dedicated to the principles that have defined us for over seven decades.
Services
HVAC Solutions Plumbing Systems Chiller Services Building Maintenance Pre-Construction Design Fabrication Services Medical Gas Installation Emergency Repairs Process Piping Dialysis Box Systems
Details
  • Year established: 1945
Highlights and features
  • 75+ years of Arizona mechanical contracting experience
  • ASSE-certified medical gas system specialists
  • 24/7 emergency service with rapid response
  • State-of-the-art fabrication facility with BIM integration
  • AWS-certified welding inspection team
Associations and certifications
  • ASSE 6010
  • ASSE 6020
  • AWS QC1
Services
HVAC Solutions
We design and install commercial HVAC systems with precision engineering and energy efficiency. Our team handles complete system replacements, retrofits, and maintenance for industrial and healthcare facilities. With BIM coordination and experienced technicians, we ensure optimal climate control for large-scale operations.
Medical Gas Systems
Specialized installation of medical gas and vacuum systems meeting ASSE 6010/6020 standards. We provide in-wall systems with certified outlets, alarm panels, and zone valve boxes for healthcare facilities. Our solutions include dialysis-specific gas configurations and complete system testing.
Emergency Repairs
Around-the-clock emergency mechanical repair services for HVAC, plumbing, and gas systems. Our rapid response team maintains critical operations in healthcare and industrial facilities with minimal downtime. Available 365 days a year with immediate on-site support.
Fabrication Services
Precision fabrication of piping systems in carbon steel, stainless steel, copper, and plastics. Our 23,000 sq ft facility produces high-purity process piping and plumbing components using automated cutting and AWS-certified welding processes. Includes spooling and cloud-tracked delivery.
Pre-Construction Design
Collaborative design-assist services integrating mechanical systems during project planning. We provide cost analysis, BIM coordination, and constructability reviews to maintain budgets while optimizing system performance. Our team works with architects and engineers from concept through final design.
Questions
What areas do you serve?
We primarily serve Arizona with headquarters in Phoenix, including Mesa, Scottsdale, Chandler, and surrounding communities.
Do you offer emergency services?
Yes, our 24/7 emergency response team provides immediate assistance for HVAC, plumbing, and mechanical system failures.
What industries do you specialize in?
We specialize in healthcare facilities, commercial construction, and industrial projects requiring complex mechanical systems.
Are you certified for medical gas installations?
Yes, our medical gas systems meet ASSE 6010/6020 standards with certified welding and installation processes.
How long have you been in business?
We've been serving Arizona since 1945, providing mechanical contracting solutions for over 75 years.
What makes you different from other contractors?
Our combination of heritage, technical expertise, and in-house fabrication capabilities enables unique solutions for complex projects.
Reviews (2)
Mark Pludowski
Oct 20, 2019 Report
Hands down, the best contractor I have ever worked for. They show quality and integrity in their work and effort, job done right every time, bottom line. They value their best employees and don't hesitate to remove those who do not meet their highest of standards, this is especially great for their clients. They are union on their pipe trades side so, rest assured, you're getting exactly what you pay for. They are thorough and highly trained, unlike a lot of non union contractors out there. I hope to one day work with them again as they are a well oiled machine and have some of the best management
Trep Tremper
Oct 19, 2018 Report
Best in the business always! We use them exclusively with all our A/C needs. This company has an All Star team of experts that know how to get it right first time everytime! We have a large office complex and WD Manor services all our tenants who equally rave about the expertise, professional quality and character of this company! Thank You James for making it happen for the good!
5 star experience every time.