01. services

custom DECKS & patios

Our deck team has been installing decks in the Northwest for over 20 years. We have combined forces with timber Tech and azik building products to give you a 40 year warranty and ease of mind when working with us

Our products:
We specialize in cedar and composite decking. We are offer all railing styles from cedar to glass and metal baluster.

Our method:
We utilize green building practies with long lasting products to ensure your project will hold up through our relentless rain and seasonal winds.

Our vendors:
Timbertech composite decking and railings “Platimun Level” installer with 40 year warranty.
Azec composite decking
Platinum level installer with 40 year warranty.
Feeney railing products
Fortress railing products
AGS Stainless railing products

02. services


Our fences are built with the highest quality material, very few competitors can match our level of quality. If maintained, these fences will last upwards of 40 years.

Post Material: “Jumbo” 4x4x9 slats are used for 6ft. tall fences. We set posts a minimum of 24″ in the ground and use an additive Quikrok Extra Strength Concrete.

Rails & Trim: We only use cedar fence rails because pressure-treated fence rails tend to twist and crack. Our rails are installed with 2,000 lbs holding strength through 3 1/2″ inch galvanized nails. 

Our Pickets: We carry only the finest fence board offered in the country; Alta Cedar fence boards with no holes or defects. 

03. services


Serving You since 2005

Dedicated to the highest standards in the arboricultural industry, Olson’s Outdoor Improvements has expanded greatly since Brian Olson started the business in 2014.

ISA and TCIA accredited

As ISA (International Society of Arboriculture) and TCIA (Tree Care Industry Association) members, ETW stays current on industry approved methods of caring for and removing of trees.

The latest tools and techniques are used with special care taken to ensure no unnecessary damage is done to the surrounding area.

SDOT requirements fulfilled

  • WA State Contractor License
  • City of Seattle Business License
  • Certificate of Insurance, with City of Seattle listed as additional insured.
  • Current Annual Equipment permit number(s)

Cities we Serve

– Bellevue -Redmond -Isaquah -Renton -Auburn -Kent -Eastside -Enumclaw -Auburn -Black Diamond -Ravensdale -Maple Valley -Covington -Kent -Renton -Tukwila -West Seattle -North Bend -Fall City -Carnation -Snoqualmie -Issaquah -Newcastle -Bellevue -Mercer Island -Sammamish -Clyde Hill -Medina -Hunts Point -Kirkland -Redmond -Burien -Federal Way -Des Moines -Normandy Park -SeaTac -White Center -Preston