Castle Builders
General contractor in Union, ME 04862
About this company
Castle Builders is listed as a general contractor at 2179 Heald Hwy in Union, Maine, in Knox County. It is one of 9 general contractors in ZIP 04862.
Other construction companies nearby
Mid-Coast Waterproofing1214 Middle Rd, Warren
3.6 mi(207) 542-7140
Lane Construction837 Waldoboro Rd, Washington
4.6 mi(207) 845-2641
Bissett Construction404 Jefferson Rd, Washington
6.6 mi(207) 542-6754
Maine Contractors & Builders2043 Camden Rd, Warren
6.8 mi(207) 593-0864
Starbird Concrete2043 Camden Rd, Warren
6.8 mi(207) 593-9306
Housing market around ZIP 04862
Figures describe the local area, not this company.
Typical home value$386,000+1.2% past year · +115% in 10 years
New homes permitted, 2025191Knox County
Source: Zillow (home values, rent, outlook and metro sales), data through Sep 2026. Permits: U.S. Census Bureau.
Typical home value, last 10 years
Source: Zillow Home Value Index, Sep 2026.
Local building angle: Knox County permitted 191 new homes in 2025, including 62 apartment units. 25% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.