Blown-In Attic Insulation in Boerne, TX

Blown-In Attic Insulation in Boerne, TX

Blown-in attic insulation fills the gaps, voids, and hard-to-reach corners in your attic floor with loose-fill material that Attic Batt Insulation simply cannot reach. Most Boerne homes we inspect are under-insulated by at least R-10, and the fastest, most cost-effective fix is a proper blown-in application – but only after the attic floor has been air-sealed. If you want a written price before anyone touches your attic, call Topside Attic Insulation Boerne at (830) 529-7780.

Our Attic Insulation in Boerne service covers the full range of attic work, and blown-in is one of the most requested applications we see in this market – particularly in homes built between 2000 and 2018, when builders in the Hill Country regularly installed only R-19 or R-22 in attics that should have reached R-38 or higher. Boerne’s climate compounds this: summer attic temperatures here routinely hit 145-160°F, and that heat load is relentless from May through September. Thin or uneven insulation doesn’t just cost you money on the electric bill – it degrades faster under that kind of repeated thermal stress.

At Topside Attic Insulation Boerne, we operate under The Haven Standard that Wes Okafor established when the company was founded in 2016. That means a flat written price before any work starts, a documented photo record when we leave, and before-and-after blower-door numbers on applicable jobs so you can see – in one specific figure – exactly what changed in your home’s envelope. We have applied this process across more than 9,000 homes since 2016, and not one of them started without a written scope.

When You Need Blown-In Attic Insulation

• Your energy bills have climbed even though your HVAC system is functioning correctly. If your unit is sized and maintained properly but Boerne summers still push your cooling costs past what neighbors in similar homes are paying, the attic envelope is usually where the loss is happening.
• Your existing insulation is below R-30 or visibly settled and matted. Older fiberglass batts compress over time and lose R-value. We regularly find 15-year-old batt insulation in Boerne homes that is performing at R-14 or lower – well short of the R-38 minimum recommended for this climate zone (Zone 2).
• Rooms near the roofline run noticeably hotter or colder than the rest of the house. Top-floor bedrooms in two-story homes in neighborhoods like Cordillera Ranch and the older sections of Boerne proper are particularly prone to this, because attic heat radiates directly into the ceiling assembly above them.
• Your attic has recessed can lights, plumbing chases, or HVAC penetrations with no air sealing around them. These are the spots where conditioned air exits and hot attic air enters. Blown-in insulation alone will not fix them – but we seal them before we blow, every time, no exceptions.
• You’re replacing a roof and want to address insulation while the attic is accessible. Re-roofing is one of the best times to assess what’s underneath. Boerne gets hail, and many homeowners use a storm-related re-roof as the trigger to finally address a chronically under-insulated attic.
• You’ve had a rodent or pest intrusion that contaminated or displaced existing insulation. In Boerne’s semi-rural areas – particularly homes backing up to the Cibolo Creek corridor or backing up to Cedar Breaks – squirrels, rats, and birds are common attic visitors. Contaminated insulation needs to come out before anything new goes in.

Our Blown-In Attic Insulation Process

1. Attic Assessment and Written Price

   Before we schedule the work, a technician walks the attic, measures the existing depth and R-value, inspects for air leakage points, checks for moisture or pest damage, and photographs what they find. You receive a written scope and a flat price – not a range, a price – before anyone picks up a hose. This is Haven Standard Clause 1, and it does not bend.

2. Blower-Door Baseline Test

   On applicable jobs, we run a blower-door test – a pressurization measurement that reads, in one number (CFM50), how much air the building envelope is losing. This is your before reading. It tells us how much of the thermal problem is an air-sealing problem versus a pure insulation-depth problem. In Boerne homes built before 2010, we typically see baseline readings between 3,800 and 5,500 CFM50. That number matters because insulation alone does not fix air leakage.

3. Attic Air Sealing – Before Any Insulation Is Installed

   We seal every top plate gap, every recessed can light penetration, every plumbing and HVAC chase, and every electrical penetration before we touch the insulation. We use closed-cell spray foam and acoustical sealant for this work. Blowing insulation over an unsealed attic floor is the single most common mistake we find when auditing other contractors’ Attic Baffles & Ventilation Prep work in Boerne. We do not do it. Wes Okafor built this sequence into every job from the company’s first year, and it has not changed.

4. Blown-In Insulation Installation

   Once the air sealing is complete and inspected, we install blown-in insulation to the target R-value specified in your written scope – typically R-38 to R-60 depending on your home’s age, construction type, and existing depth. We source material from manufacturers including GreenFiber and Owens Corning, and the specific product used is named in your written scope before we start. Depth rulers are installed at multiple points in the attic so the final depth is verifiable – not estimated.

5. Post-Installation Blower-Door Test and Documentation

   On applicable jobs, we run the blower-door again after work is complete. The after reading, compared against your before reading, shows in one concrete number how much the envelope tightened. We have seen reductions of 30% to 55% on Boerne homes where the air sealing phase addressed significant penetration leakage. Both numbers – before and after – go into your documented record.

6. Photo Record Delivered Before We Leave

   Every visit closes with a Documented Photo Record: pre-work conditions, air-sealing points, final insulation depth at the rulers, and any attic conditions we flagged during the job. This record is yours. It is not available on request – it is included on every job, automatically. If you refinance, sell, or file an insurance claim, you have dated documentation of what is in your attic and when it was installed.

Blown-In Attic Insulation Pricing in Boerne

Blown-in attic insulation in Boerne typically runs between $1.20 and $2.40 per square foot of attic floor, installed, though How Much Does Attic Insulation Cost? (2026 Price Guide) - Boerne, TX has full details. For a 1,500-square-foot attic, that puts most jobs between $1,800 and $3,600. A 2,000-square-foot attic runs roughly $2,400 to $4,800. These are total-job figures, not material-only estimates.

Several variables move the number within that range:

• Existing insulation depth. If you currently have R-11 and need R-38, you need more material than a home sitting at R-22. More material means more time and cost.
• Air sealing complexity. A 1970s Boerne home with dozens of unsealed top-plate gaps and original can lights takes significantly more sealing time than a 2015 build with fewer penetrations. Air sealing is priced into the written scope as a line item, not bundled and hidden.
• Attic access and configuration. Low-pitch roofs, knee walls, and split-level attic spaces common in older homes near Main Plaza in downtown Boerne add labor time. We account for this in the written price before we start – not as a surprise charge after.
• Whether existing insulation needs to be removed first. Rodent-contaminated or moisture-damaged insulation must come out before new material goes in. Removal is scoped and priced separately, in writing.
• Target R-value. R-49 and R-60 specifications require more depth than R-38 and cost more in material. The right target for your Boerne home depends on your current depth, your construction type, and whether you have HVAC equipment or ductwork in the attic space.

Under Haven Standard Clause 1, you receive a flat written price – not a range – before anyone starts. If you have a written estimate from another contractor, bring it. We offer a free second opinion on any written estimate and will read it with you line by line. Call (830) 529-7780 to schedule your assessment.

FAQs – Blown-In Attic Insulation

What R-value do I need for blown-in insulation in Boerne, TX?

Boerne falls in IECC Climate Zone 2, which calls for a minimum of R-38 in the attic, though R-49 is the current new-construction standard in most jurisdictions. If your existing insulation is below R-30 – which is true of a significant share of Boerne homes built before 2010 – topping up to R-38 or R-49 is the range we most commonly scope here. Homes with HVAC equipment or ductwork sitting in the unconditioned attic space often benefit from R-49 to R-60 because the equipment itself is a heat-gain source. Your written scope will name the target and explain the reasoning. Call (830) 529-7780 and we will measure what you have and write up the recommendation before any commitment is required.

How long does blown-in attic insulation installation take in a typical Boerne home?

Most blown-in jobs in a single-story Boerne home – 1,500 to 2,000 square feet of attic floor – are completed in four to seven hours, including the air-sealing phase. Two-story homes or those with complex attic configurations typically run six to ten hours. We do not hand off air sealing to a separate crew or a separate visit; it happens on the same day, in sequence, before the insulation goes in. The blower-door test adds roughly 45 minutes at the start and another 45 at the end. Plan for one full day for the crew to be present.

Is blown-in insulation better than fiberglass batts for my Boerne attic?

For most Boerne attics, blown-in loose-fill outperforms batts in practice – not because batts are a bad product, but because blown-in material conforms around obstructions like wiring, trusses, and blocking without leaving voids. Voids are where heat moves. In the attic inspections we conduct across Boerne, partially installed or compressed batt insulation is one of the most frequent findings. Blown-in material – whether cellulose like GreenFiber or fiberglass loose-fill like Owens Corning’s AttiCat product – fills those spaces reliably. The more important variable in either case is whether the attic floor was air-sealed before installation. That step determines how much of your thermal problem actually gets fixed.

How do I know if my current attic insulation is still working?

The most reliable method is a blower-door test combined with a physical depth inspection. A blower-door test – a pressurization measurement that produces a single CFM50 figure showing how much air your envelope is losing – tells you whether you have an air-sealing problem on top of an insulation problem. A depth inspection tells you the current R-value. Without both numbers, you are guessing. Signs that suggest a problem worth investigating include rising cooling costs with no HVAC change, top-floor rooms that are harder to keep comfortable than the rest of the house, or visible settling and thinning of existing material in the attic. If your home is in Boerne and was built before 2015, a free assessment is worth scheduling before another summer runs. Call (830) 529-7780 and we will put the findings in writing before any price conversation starts.

Why Boerne Homeowners Choose Topside Attic Insulation Boerne

The Hill Country’s climate is not forgiving. Boerne sits at roughly 1,400 feet elevation, which brings cooler winters than San Antonio but summers that are just as brutal for an under-insulated attic. The cedar, oak, and juniper that make the area beautiful also mean homeowners deal with pollen, allergens, and particulates that infiltrate through every gap in an unsealed building envelope. Sealing those gaps before blowing in insulation is not a premium option we offer – it is the only way we work.

Since 2016, Wes Okafor has run Topside Attic Insulation Boerne with a straightforward operating rule: document everything, price it in writing before starting, and let the blower-door numbers speak instead of marketing language. Across more than 9,000 homes, that approach has produced a consistent record – not because it is a compelling story, but because the documentation is verifiable. Every customer receives a photo record and, on applicable jobs, before-and-after CFM50 readings. You can look at the numbers yourself.

The 365-Day Done Right Promise applies to every blown-in job we complete in Boerne. If the work is not right within a year of installation, we make it right. That promise is in writing before we start – not offered after a complaint. For a line item this size in your home budget, the written warranty and the documented record are what you should expect from any contractor you hire. We provide both as standard.

This page covers blown-in insulation specifically. For a broader look at everything involved in attic performance – including radiant barriers, removal and replacement, and full energy audits – visit our Attic Insulation in Boerne page, which covers the complete service line for this market. And if you want to understand how insulation fits into the full building envelope picture, our home page lays out the range of services available under one written scope.

Schedule Your Blown-In Insulation Assessment in Boerne

If your Boerne home is under-insulated, uncomfortable in summer, or you simply don’t know what R-value is currently in your attic, the right first step is a written assessment – not a phone estimate. Call our Attic Insulation services team at (830) 529-7780. A live person answers every call. You will get a named technician, a scheduled visit, and a written price before any work is discussed. That is how every job starts, and it has been that way since 2016.

Written by Wes Okafor, Owner at Topside Attic Insulation Boerne, serving Boerne.