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   About M&M Exteriors


    • Based in Portland, Oregon - With offices in the tranquil town of Dundee
    • Serving the Northwest for over 8 years
    • Full-Service Commercial & Residential Waterproofing and Cladding  
    • New Construction, Remodels and Remediation Repair 
    • Expertise in the Full Spectrum of Waterproofing and Cladding Products.



At M&M Exteriors, we build quality through workmanship, adherence to best practices, communication with our clients to understand their needs and a service-oriented attitude.


  • Ongoing Training
  • We go the extra mile to train our staff and crews on a consistent basis in industry best practices and the latest techniques in waterproofing and cladding application.

  • Efficiency and Quality 
  • Our clients have the peace of mind that we will deliver a high quality finished product and on schedule. 

  • Pre-Construction Services
  • We work closely with our clients design team in the pre-construction  phase to ensure that any details commonly overlooked or missing in most architectural drawings are addressed in a timely and impermeable manner.

  • Full-time, On-site Foreman
  • We assign each project a full time foreman to interface with our client's superintendent and oversee all aspects of our work. Our formen are trained to be proactive in catching problems before they occur. they also ensure that all employees comply with jobsite rules and regulations and safety guidelines.

  • Safety - Because we value our people and our customers. 
  • Every M&M employee is trained continuously in personal safetyand adherence to local, state and federal safety guidelines.  Our company safety guidelines are considerably more conservative than those set by governing agencies and our track record speaks for itself.

  • We know how to do it RIGHT!

    We are not the cheapest siding contractor in the Northwest because we refuse to sacrifice quality.

    We insist on minimizing risk and we take pride in standing behind our work.



    Thank you for considering M&M Exteriors


    We look forward to proving our claims with our results substantiated by our vast and prominent list of satisfied clients.