Olsen & Sons Construction has been constructing room additions, remodels  

   and other home improvements since 1982.

We work closely with our clients, architects, designers, subcontractors,

   trades people and suppliers as a collaborative team throughout the

   construction process to provide our clients with the most cost effective and

   highest quality finished project.

Owners, Paul and Dave are on the jobsite always looking out for the best  

   interests of our clients as they supervise each project.



  • We provide our clients with the very best value for each dollar spent while never compromising on quality.
  • We use local sub-contractors, trades people and suppliers all of whom have excellent work-ethic, expertise and reputations.
  • Our projects  are well organized as we anticipate several steps ahead to ensure the project is moving forward.


  • We are always available to our clients on the jobsite, by phone, text and email


  • Our contracts and invoices are easy to understand, straight forward and detailed. There are no hidden costs or fees. Our clients know exactly where each dollar will be spent.


  • Contact us for a free consultation regarding your project
  • We will help you develop a realistic budget and timeline
  • If you do not have plans yet, we will match your needs with one of our architects

On the left are photos showing a recent

room addition from start to finish.

Photos on the right are from a recent

remodel and room addition project in Simi Valley.

olsen & sons construction

remodels & room additions


Below are the photos from a home recently remodeled in Thousand Oaks.

The photos of a home recently remodeled in Simi Valley.

Below are the photos from a townhouse recently remodeled in Westlake Village.