Diamond Air
HVAC contractor in Seguin, TX 78155
About this company
Diamond Air is listed as an HVAC contractor at 226 Sunbelt Loop W in Seguin, Texas, in Guadalupe County. It is one of 12 HVAC companies in ZIP 78155.
Other HVAC companies nearby
Brown's AC & Heating Sales & Service2175 E US Highway 90, Seguin
0.1 mi(830) 303-7615
Clark Air Repair405 Mills Way, Seguin
2.0 mi(830) 303-9980
Joe Cools A/C & Heating527 E Kingsbury St, Seguin
2.0 mi(830) 433-4559
Tri-Star A/C & Heating218 E Kingsbury St, Seguin
2.2 mi(830) 372-4199
R & S Heating & Air Conditioning1202 N Camp St, Seguin
2.4 mi(830) 303-3603
Housing market around ZIP 78155
Figures describe the local area, not this company.
Typical home value$267,000−1.8% past year · +41% in 10 years
Typical rent$1,429+1.8% past year
12-month value outlook−1.2%
New homes permitted, 20251,697Guadalupe County
Days to sale agreement53San Antonio metro · 51 a year ago
Listings with a price cut30.4%San Antonio metro
Sale price vs list97.2%San Antonio metro
New construction sales1,180San Antonio metro, Aug · +3% from last year
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: Guadalupe County permitted 1,697 new homes in 2025, including 133 apartment units. 32% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.