Reliable Air
HVAC contractor in San Marcos, TX 78666
About this company
Reliable Air is listed as an HVAC contractor at 4702 N State Highway 123 in San Marcos, Texas, in Hays County. It is one of 13 HVAC companies in ZIP 78666.
Other HVAC companies nearby
Air Care Today4730 N TX-123, San Marcos
Under 0.1 mi(512) 333-1135
Comfy Air5040 SH 123 Bldg #200 Ste 2, San Marcos
0.4 mi(830) 965-8534
Fast AC & Heating1000 Beback Inn Road, San Marcos
1.3 mi(512) 216-1380
Goodman Distribution Inc.1600 Clovis Barker Rd Ste 301, San Marcos
1.9 mi(512) 392-6939
Fast AC & Heating109 Ridge Dr, San Marcos
2.0 mi(281) 851-9100
Housing market around ZIP 78666
Figures describe the local area, not this company.
Typical home value$309,000−2.9% past year · +44% in 10 years
Typical rent$1,418+0.8% past year
12-month value outlook−1.7%
New homes permitted, 20254,595Hays County
Days to sale agreement60Austin metro · 67 a year ago
Listings with a price cut30.1%Austin metro
Sale price vs list97.3%Austin metro
New construction sales890Austin metro, Aug · +5% 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: Hays County permitted 4,595 new homes in 2025, including 436 apartment units. 46% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.