TX Builder USA

TX Builder technician on an insulation job in Seguin, TX

Seguin, TX attic insulation

Attic insulation in Seguin, TX.

Seguin has historic homes near downtown and new neighborhoods on every side of town. We help Seguin homeowners replace old insulation and keep the summer heat out of the house.

Owens Corning Certified Energy Expert®
7,000+ customers served
Free attic inspection

Insulation for Seguin homes

Why Seguin attics need attention.

As the Guadalupe County seat, Seguin has plenty of older homes with small attic spaces and insulation that has not been touched in decades. At the same time, new subdivisions are going up quickly, many with builder-grade insulation that leaves room for improvement.

In older attics, we often find compressed insulation, gaps and signs of pests. We remove what needs to go, clean and sanitize the attic and seal air leaks before installing new insulation at an even depth.

  • Free inspection with photos of your attic
  • Clear written quote before any work starts
  • Average attic customer saves 20% on energy bills
Attic cleaned after old insulation was removed by TX Builder

Warning signs

Signs your Seguin home needs new attic insulation.

Hot upstairs rooms

Bedrooms and bonus rooms stay warm even with the AC running.

High summer bills

Your cooling costs keep climbing while the house never feels quite cool.

Visible joists

You can see the tops of the ceiling joists through the insulation.

Flat or uneven insulation

Insulation that is compressed, patchy or pushed aside no longer does its job.

Rodents or droppings

Tunnels, nests and droppings mean the insulation should be removed and replaced.

Water stains or odors

Wet or musty insulation loses its value and should be checked right away.

Attic insulation services in Seguin

The full job, done in the right order.

TX Builder crew removing old attic insulation with a vacuum hose
01

Old insulation removal

Compressed, wet or rodent-contaminated insulation is vacuumed out and hauled away.

TX Builder technician cleaning an attic
02

Attic cleaning & sanitizing

Debris, droppings and dust are cleared and the attic is sanitized.

Attic framing and ductwork prepared for air sealing
03

Air sealing

Gaps around top plates, pipes, wiring and fixtures are sealed.

New blown-in insulation installed across an attic
04

New insulation installation

Blown-in insulation is installed to an even depth across the attic.

How it works

A clear process, from inspection to walkthrough.

Free attic inspection

We check insulation depth, damage, pests and air leaks, and show you photos of what we find.

Clear written quote

You get a quote that lists exactly what will be done, so you can decide with no pressure.

Removal, cleaning & sealing

Old insulation comes out, the attic is cleaned and sanitized, and air leaks are sealed.

New insulation & walkthrough

New insulation is installed evenly, and we walk you through the finished attic.

Google reviews

What our customers say.

Local energy facts

Insulation levels, rebates and tax credits in Seguin.

Recommended R-value

Guadalupe County is in IECC climate zone 2A. For zones 2 and 3, ENERGY STAR recommends R-49 for an uninsulated attic and R-38 when you already have 3 to 4 inches. We measure your current depth during the free visit.

Utility rebates

GVEC’s rebate list covers heat pumps, EV chargers, thermostats and batteries, but not attic insulation.

Federal tax credit

The federal Energy Efficient Home Improvement Credit (25C) does not apply to insulation placed in service after December 31, 2025, so don’t plan your budget around it.

Checked October 2026. Sources: GVEC rebates · ENERGY STAR R-value guide · IRS 25C FAQ

Questions

Attic insulation in Seguin: FAQ

Can you insulate an older Seguin home with a tight attic?

Yes. Smaller and older attics take more care, but they can be cleaned out and insulated. We check access and conditions during the free inspection.

Do you serve the areas around the Guadalupe River?

Yes. We serve homes throughout Seguin and the surrounding area. Call us with your address to confirm.

Is the attic inspection really free?

Yes. We inspect the attic, show you photos of what we find and give you a written quote. There is no obligation to book.

Do you always remove the old insulation?

No. When the old insulation is contaminated, wet or badly compressed, we remove it, clean and sanitize the attic and seal air leaks first. If it is in good shape, we will tell you whether adding new insulation on top is enough.

Nearby areas

Attic insulation near Seguin.

We also serve homes across the San Antonio area. See all service areas →

Free attic inspection in Seguin

Find out what your attic needs.

Send the form or call us. We will set up a free inspection, show you photos of your attic and give you a clear written quote.

  • No-obligation inspection and quote
  • Owens Corning Certified Energy Expert®
  • Serving Seguin and the San Antonio area
(210) 761-4855
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