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City of Ontario, California

Home Improvement Contractors in Ontario, CA

Every trade we cover, for homes in Ontario. 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 Ontario home dates from 1980, 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 Ontario

Census and NOAA figures for the city of Ontario in San Bernardino County, not the metro, with a source for each.

1980Median year built1U.S. 1980
50%Built before 1980114% built since 2010
1978Owner-occupied median year built1rentals 1983
58%Detached single-family120% in 5+ unit buildings
58%Owner-occupied156% statewide
$608kMedian home value1California median $735k

The median home in the city of Ontario was built in 1980, about the same as the U.S. median of 1980 and newer than the California median of 1976.1 About 50% of Ontario's housing units were built before 1980, close to the national share, and 14% since 2010.1 Owner-occupied homes in Ontario are older than rentals: a median build year of 1978 against 1983.1 Where owner-occupied homes skew older, a repair-versus-replace conversation is the usual starting point rather than a like-for-like swap.

Ontario has a mixed housing stock: 58% detached houses, 9% attached or townhouse units and 20% in buildings of five or more units.1 58% of occupied homes in Ontario are owner-occupied (56% statewide).1 The median owner-occupied home in Ontario is valued at $607,600 (ACS), below the California median of $734,700.1 With values below the state median, phased scopes - the essential work first - are a common way to keep a project sensible.

Freezing nights are rare: the nearest NOAA station (Riverside Muni Ap) averages 3.5 nights a year at or below 32°F.2,3 With few freezing nights, water and sun rather than ice are what exterior details are built against. Heat is the governing season: about 100 days a year reach 90°F and 22 reach 100°F.2,3 A long hot season shortens the life of roofing, sealants and garage-door electronics, and it shapes what a contractor specifies.

The climate is arid: annual precipitation is only about 9 inches.2,3 Low rainfall shifts the wear to UV and heat, which age finishes and sealants. Cooling dominates the year: about 1,854 cooling degree days against 1,386 heating degree days (base 65°F).2,3 In a cooling-led climate, attic ventilation, duct sealing and window solar gain are where the energy code concentrates.

Ontario is about 34 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. Ontario sits in IECC climate zone 3B (Hot-Dry).6 Building permits in Ontario are normally issued by the city building department.7,8

Share of Ontario housing units by year built
Before 19405.2%
1940-195917.7%
1960-197926.9%
1980-199929.1%
2000-20096.9%
2010 or later14.3%
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 Riverside Muni Ap, 11.2 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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Written scope, no obligation. Call now or email and we will get back to you.

Service area

Ontario and nearby

Requests for Ontario and the surrounding California 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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Straight-line distances between place centers, not drive times.

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Questions

Ontario questions

How much does home remodeling cost in Ontario, CA?

Most home remodeling projects in Ontario, CA land between $25,550 and $134,900, 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 Ontario?

The median home in the city of Ontario was built in 1980, about the same as the U.S. median of 1980 and newer than the California median of 1976. About 50% of Ontario's housing units were built before 1980, close to the national share, and 14% since 2010. Those are Census figures for the whole housing stock, including apartments, not a statement about any one house.

What is the Ontario climate like for exterior work?

Freezing nights are rare: the nearest NOAA station (Riverside Muni Ap) averages 3.5 nights a year at or below 32°F. Heat is the governing season: about 100 days a year reach 90°F and 22 reach 100°F. The climate is arid: annual precipitation is only about 9 inches. NOAA 1991-2020 normals for the nearest station; a contractor still assesses the actual site.

Get a free Ontario quote

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