
Irion County seat
Spray Foam Insulation in Mertzon, TX
Insulation for homes and ranch buildings at 2,200 feet, west of San Angelo.
- Free estimates after an on-site look
- Written quotes that name foam type, thickness and R-value
- Attic leaks, ducts and old insulation checked before we cover anything
Insulating Homes in Irion County
Spray Foam Insulation in Mertzon covers the county seat of Irion County, part of the San Angelo metropolitan area. Mertzon was incorporated in 1933, sits at about 2,201 feet, and had 747 residents in the 2020 census.
A small housing stock
The 2020 census counted 366 housing units in Mertzon, 15.3% of them vacant, and 310 households. The census considers the whole city rural. Homes range from older frame houses to newer homes and manufactured homes, many on lots with a shop or barn. In older homes we usually find thin attic insulation and open gaps at the top plates and around flues.
Ranch buildings
Irion County is ranch country, and steel buildings are common. In summer, foam on the roof keeps them cooler; in winter, closed-cell foam stops condensation from dripping onto feed, saddles and equipment.
Older residents
The Irion County area has many longtime households. Simple improvements like sealing the attic hatch, sealing ceiling penetrations and blowing in insulation to depth can make a house noticeably easier to keep comfortable.
Targets
Irion County is classified as Climate Zone 3B by OpenEI. The 2015 code table Texas uses lists R-38 for ceilings and R-19 for floors in Zone 3.
Manufactured homes
Manufactured homes are part of the housing mix around Mertzon. These homes have a shallow roof cavity and an insulated belly under the floor instead of a walk-in attic. The most useful work is often sealing the ducts and the gaps where the home's sections join, repairing the belly wrap and insulation, and adding skirting insulation if the space underneath is open. We look at the specific home before pricing anything.
Older frame homes
Older homes in town often have the same issues we see across West Texas: thin attic insulation, ducts with open joints, and gaps at the top of the walls. Sealing the attic floor and adding depth is usually the best first step.
Schools and county services
The Irion County ISD and county offices make Mertzon the center of the county. Many people who work there live in town, and their homes tend to be lived in year-round, which makes insulation work pay back steadily.
Tell us about your home or building and we will come out to Mertzon. Get a free estimate
What to Know in Mertzon
- County seat. Mertzon is the county seat of Irion County, incorporated in 1933, and is part of the San Angelo metro area.
- Housing. The 2020 census counted 366 housing units in Mertzon, 15.3% vacant, and 310 households; the city is 100% rural.
- Elevation. Mertzon sits at about 2,201 feet and covers 1.52 square miles.
- Climate zone. OpenEI lists Irion County as Climate Zone 3B.

Mertzon Questions
Do you work in Mertzon and around Irion County?
Yes, including ranch properties outside town.
Can you foam a tack room or saddle shed?
Yes. Closed-cell foam keeps condensation off leather and equipment.
What R-value should my attic have?
In Zone 3, R-38 is the code figure for new work and R-49 is ENERGY STAR's target for a bare attic.
Can you insulate a manufactured home?
Often yes, with methods suited to its roof cavity and belly. We look first and tell you what is practical.
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