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City of Sammamish, Washington

Home Improvement Contractors in Sammamish, WA

Every trade we cover, for homes in Sammamish. Tell us the project once and we connect you with licensed, insured contractors for it through one national line - and you compare written scopes. The median Sammamish home dates from 1994, so most jobs start with what is already there.

  • Local permit knowledge
  • Clear change-order process
  • Licensed and insured contractors only
  • Written scope before work starts
Sourced local data

About homes in Sammamish

Census and NOAA figures for the city of Sammamish in King County, not the metro, with a source for each.

1994Median year built1U.S. 1980
13%Built before 1980113% built since 2010
1994Owner-occupied median year built1rentals 1995
81%Detached single-family111% in 5+ unit buildings
83%Owner-occupied164% statewide
$1,407kMedian home value1Washington median $565k

The median home in the city of Sammamish was built in 1994, newer than the U.S. median of 1980 and newer than the Washington median of 1985.1 Most of Sammamish's housing is recent: only 13% of units predate 1980 (U.S. 50%) and 13% were built since 2010.1 Owner-occupied and rented homes in Sammamish are of similar age: median build years 1994 and 1995.1 Housing in Sammamish is mostly detached single-family: 81% of units, with 11% in buildings of five or more units.1 A mostly detached stock means the full range of exterior work applies: roofs, garage doors, chimneys and backyard units.

Home ownership is the norm in Sammamish: 83% of occupied homes are owner-occupied (64% statewide).1 The median owner-occupied home in Sammamish is valued at $1,407,300 (ACS), above the Washington median of $564,600.1 Home values above the state median tend to support fuller scopes; the written scope should still separate must-do from nice-to-have. The Seattle Sand Pt Wsfo station averages 25 nights a year at or below 32°F - a short freeze season.2,3

Hot days are uncommon: about 2 days a year reach 90°F.2,3 Annual precipitation is about 38 inches, with 4 days a year bringing an inch or more.2,3 Heating dominates the year: about 4,482 heating degree days against 211 cooling degree days (base 65°F).2,3 In a heating-led climate, insulation and air sealing carry most of the energy-code weight for any work that opens the envelope.

Sammamish is about 14 miles from the ocean or Gulf coast in a straight line.4,5 Proximity to salt air makes fastener grade and corrosion protection part of every exterior quote. Sammamish sits in IECC climate zone 4C (Marine).6 Building permits in Sammamish are normally issued by the city building department.7,8

Share of Sammamish housing units by year built
Before 19400.5%
1940-19591%
1960-197911.5%
1980-199953.6%
2000-200920.7%
2010 or later12.7%
Sources and notes (8)
  1. U.S. Census Bureau, American Community Survey 5-year estimates (ACS 2020-2024 5-year (released 2026-01))
  2. NOAA NCEI U.S. Climate Normals, nearest station (1991-2020 normals (published 2021))
  3. NOAA NCEI normals station inventory (1991-2020)
  4. U.S. Census Bureau Gazetteer files (2025)
  5. U.S. Census Bureau TIGER/Line coastline (2025)
  6. Guide to Determining Climate Zones by County: Building America and IECC 2021 Updates (PNNL-33270) (September 2022 (IECC 2021 county map))
  7. U.S. Census Bureau population estimates (Vintage 2024)
  8. U.S. Census Bureau geographic code files (2020)
  9. Climate figures are for NOAA station Seattle Sand Pt Wsfo, 12 miles from the place center; housing figures are ACS ACS 2020-2024 5-year with 90% margins of error in the source tables.

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Service area

Sammamish and nearby

Requests for Sammamish and the surrounding Washington area go through our national line. Call (844) 624-3161 with the address and the project and we confirm whether we have a contractor who can take it on.

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Questions

Sammamish questions

How much does home remodeling cost in Sammamish, WA?

Most home remodeling projects in Sammamish, WA land between $21,250 and $112,100, depending on scope, access and material grade. That is an estimated range for planning, not a quote - call (844) 624-3161 and we will scope your job properly.

Do I need drawings before calling?

No. If you have them, good - if not, we start from what you want to change and work back to what the house allows.

How old are the homes in Sammamish?

The median home in the city of Sammamish was built in 1994, newer than the U.S. median of 1980 and newer than the Washington median of 1985. Most of Sammamish's housing is recent: only 13% of units predate 1980 (U.S. 50%) and 13% were built since 2010. Those are Census figures for the whole housing stock, including apartments, not a statement about any one house.

What is the Sammamish climate like for exterior work?

The Seattle Sand Pt Wsfo station averages 25 nights a year at or below 32°F - a short freeze season. Hot days are uncommon: about 2 days a year reach 90°F. Annual precipitation is about 38 inches, with 4 days a year bringing an inch or more. NOAA 1991-2020 normals for the nearest station; a contractor still assesses the actual site.

Get a free Sammamish quote

Written scope, no obligation. Call now or email and we will get back to you.