Blown-In Insulation Cost - Same-Day Service, Done Right the First Time

How Much Does Blown-In Insulation Cost in Georgetown?

Blown-in insulation in Georgetown, TX typically costs between $1,800 and $4,200 for a standard attic in a home ranging from 1,500 to 3,000 square feet, with most jobs landing around $2,400 to $3,000 when attic air sealing is included. The price is driven primarily by square footage, current insulation depth, and whether penetrations like can lights and top plates need to be sealed before the blow-in starts. Jobs completed under the Blown-In Insulation in Georgetown service at Envelope Insulation Co. include a written price before any work begins, so you’ll know the exact number before a crew sets foot in your attic.

Blown-In Insulation Cost Breakdown (2026)

Blown-in insulation pricing in the Georgetown market breaks down across a few variables: attic floor area, target R-value, current insulation depth, and whether air sealing is part of the scope. The table below reflects what we see on actual jobs in Georgetown, Jarrell, Sun City, Teravista, and the Wolf Ranch corridor in 2026. These are not national averages – they are ranges drawn from homes in Williamson County’s climate zone 2A/3A boundary, where summer attic temperatures regularly exceed 140°F and a code-minimum R-38 is the floor, not a comfortable ceiling.

What the Numbers Actually Mean for Your Georgetown Home

The most common Blown-In Insulation services we complete in Georgetown is an attic top-up or full blow-in on a 2,000-square-foot home built between 2000 and 2018. These homes typically have R-19 to R-26 in the attic from the original build, and the target is R-49 to R-60 to match what Georgetown’s summer heat genuinely demands. That scope, with air sealing included, runs $2,600 to $3,600 on most visits.

Homes in Sun City Georgetown – which skews toward single-story layouts with large, low-pitched attics – often come in at the higher end of the range per square foot because attic access is more constrained and hose runs are longer. Homes in the Wolf Ranch area, built primarily post-2016, tend to have better starting insulation depth but frequently show unaddressed can-light penetrations that let conditioned air bypass whatever insulation is already there. We seal those before we blow anything in. That’s not an upsell; skipping it means the new insulation performs below its rated R-value from day one.

Material matters too. We use blown fiberglass and blown cellulose from manufacturers including Owens Corning, Johns Manville, Knauf, and GreenFiber, depending on the job conditions. Cellulose is denser and better suited to certain ceiling configurations; fiberglass settles differently over time. The written scope you receive before work starts will name the material, the target depth in inches, and the R-value being achieved – not approximate language.

What Affects Blown-In Insulation Pricing in Georgetown

• Attic floor area and access. Price per square foot drops on larger attics because setup costs are amortized over more material. A 3,500-square-foot attic in a Georgetown estate home is cheaper per square foot than a 900-square-foot bungalow attic near the downtown square, even if the total invoice is higher. Tight access hatches, low ridge heights, and HVAC equipment in the attic path all add time and therefore cost.
• Current insulation depth and condition. Adding 6 inches of blown fiberglass to an attic that already has 8 clean inches of existing insulation is a different job from blowing 14 inches onto a bare attic deck. If existing insulation is contaminated by rodents, moisture-damaged, or packed flat from age, removal is necessary before the new material goes in, and removal adds $700 to $1,100 per 1,000 square feet in Georgetown’s current labor market.
• Target R-value and local climate demands. Georgetown sits on the edge of IECC climate zones 2A and 3A. Texas code for new construction requires R-38 in attics, but we regularly document homes losing more than 40% of their cooling energy through an underinsulated envelope. Our recommendation on most Georgetown homes is R-49 to R-60, which requires 15 to 19 inches of blown fiberglass at settled depth. The deeper the target, the higher the material cost – roughly $0.20 to $0.35 per square foot per additional R-10.
• Air sealing scope. We will not blow insulation over an unsealed attic floor – that’s a documented policy, not a sales position. Top plates, can lights, plumbing penetrations, and HVAC boot gaps are sealed with foam and mastic before the hose runs. The air sealing component typically adds $600 to $1,200 to the job depending on how many penetrations exist. Homes built before 2010 in Georgetown neighborhoods like Berry Creek or Georgetown Village tend to have significantly more unsealed penetrations than newer builds.
• Removal of existing material. If the attic has fiberglass batts laid on the deck, or old blown insulation that’s compressed, rodent-damaged, or contaminated, it needs to come out before the new blow-in. Removal is a separate line item because it requires a vacuum truck, bagging, and disposal – Georgetown waste disposal rates factor into this, and the process adds half a day to the job timeline.
• Blower-door verification and documentation. On every applicable job, we run a blower-door test before and after the air sealing phase. A blower-door test is a pressurization reading – the technician depressurizes the home to 50 Pascals and measures airflow in cubic feet per minute (CFM50). That number tells you, in one figure, how much conditioned air your building envelope was losing. The before reading and after reading are documented and given to you. Some contractors charge separately for this; at Envelope Insulation Co., it’s included on applicable jobs. Homes in Georgetown’s Teravista community that we’ve tested have shown before readings of 3,800 to 5,200 CFM50, dropping to 1,600 to 2,400 CFM50 after sealing – a verifiable reduction, not an estimate.

Before

After

Georgetown vs. National Averages: Why the Numbers Differ

National cost calculators often quote blown-in insulation at $1.00 to $1.50 per square foot. In Georgetown’s 2026 labor market, that range is more accurately $1.40 to $2.20 per square foot for the insulation component alone, before air sealing or removal. Several factors specific to Central Texas and Williamson County drive this gap.

First, Georgetown’s summer heat is not average. Attic air temperatures in July and August here regularly hit 140 to 150°F. Material specifications for Central Texas jobs require deeper installation depths to reach the same effective thermal performance that a thinner application might achieve in a milder climate. Second, demand in Georgetown’s residential construction corridor – particularly around Wolf Ranch, Georgetown Village, and the Parkside on the River development – has kept labor costs elevated since 2022 and that hasn’t corrected significantly heading into 2026. Third, Williamson County’s growth rate means attic crews are in constant demand, which compresses scheduling windows and keeps pricing at the upper end of statewide ranges.

None of this is a reason to overpay. It is a reason to get a written price from two or three contractors before committing. We offer a free second opinion on any written estimate you’ve already received – bring the quote, we’ll read it with you and tell you exactly what you’re comparing.

How to Save on Blown-In Insulation in Georgetown

Combine Air Sealing and Insulation in One Visit

The biggest efficiency in blown-in insulation pricing is scope bundling. If you schedule air sealing and blow-in on the same day with the same crew, you eliminate a second mobilization cost, which in the Georgetown market typically saves $200 to $400 compared to scheduling them separately. We always complete the sealing first – that’s the correct order technically – but doing it as one scheduled visit rather than two is also the more cost-effective structure for you.

Check for Utility Rebates Through PEC or Oncor

Pedernales Electric Cooperative (PEC), which serves a significant portion of Georgetown and the surrounding Williamson County area, has periodically offered rebates for qualifying insulation and air sealing improvements. Oncor customers in parts of Georgetown may also have access to residential efficiency programs. Rebate availability changes year to year, so check directly with your utility provider – but a properly documented job, with before-and-after blower-door readings and a written scope naming materials and R-values, is exactly the kind of documentation those rebate applications require. The photo record and blower-door data you receive at the end of every Envelope Insulation Co. job are sufficient for most utility rebate submissions without additional paperwork.

Don’t Remove Old Insulation Unless It’s Necessary

Old insulation that is dry, pest-free, and not compressed below a quarter of its original depth doesn’t need to come out. Blown-in can go directly over most existing fiberglass batts or older blown material in good condition. If a contractor quotes removal as mandatory without explaining why – without showing you moisture readings, pest evidence, or compression data – ask for that documentation. Unnecessary removal adds $700 to $1,100 per 1,000 square feet to a job that didn’t need it.

Get a Written Price Before Anything Starts

This sounds obvious, but it has real savings implications. A written price with a flat scope prevents scope creep. When a crew arrives and the job takes longer than estimated, a contractor operating without a written price has an opening to charge more. Under Haven Standard Clause 1, the price is written and the scope is written before any work starts – if something changes, you’re notified before the crew continues, not invoiced afterward.

Request a Free Estimate Before Scheduling

Envelope Insulation Co. provides free estimates with a written price for Georgetown homeowners. To get yours, call (254) 970-2136. You’ll get a flat number, the scope in writing, and the warranty terms – all before anyone lifts a tool.

What You Should Expect on Job Day

Knowing the cost range is useful; knowing what the day actually looks like is more useful when you’re deciding whether to trust a contractor with attic access to your home.

When an Envelope Insulation Co. technician arrives in Georgetown, you get a text when they’re on the way and a named technician – not a crew number. The visit starts with a walkthrough: the technician confirms the attic access point, measures the space, checks current insulation depth with a probe, and identifies penetrations that need sealing. That’s the pre-work documentation phase.

If air sealing is in the scope, it happens first. Top plates – the framing members where your interior walls meet the attic floor – are foamed and sealed. Can light housings, if they’re recessed fixtures that open directly into the attic, are capped or sealed from above. Plumbing and electrical penetrations get mastic or foam, depending on the gap size. This phase takes one to three hours depending on the number of penetrations.

After sealing, the blow-in begins. A machine outside the home feeds material through a flexible hose into the attic; the technician inside distributes it to the marked depth. Depth markers – small plastic rulers – are installed across the attic floor so that any future inspection can confirm the settled depth without disturbing the material.

When the crew leaves, you receive: a documented photo record of the before and after conditions, blower-door readings (on applicable jobs), and your written warranty. That’s what leaving looks like at Envelope Insulation Co. – not a business card and a handshake.

Neighborhoods in Georgetown We Commonly Serve

Georgetown is not a uniform market. Attic conditions vary meaningfully by neighborhood and build era. Here’s what we typically find:

• Sun City Georgetown: Single-story homes with large, low-pitched attics and original insulation from the 1990s and 2000s that’s frequently at R-19 or below. Good candidates for full blow-in to R-49 or R-60, often with significant can-light sealing.
• Wolf Ranch: Newer builds, typically post-2017, with code-minimum R-38 installed. More likely to need a top-up rather than a full blow-in, but unsealed spray-foam gaps at HVAC boots are common.
• Teravista: Mix of build eras from the mid-2000s through 2020. We’ve run blower-door tests in Teravista showing before readings in the 4,000 to 5,200 CFM50 range – higher than we typically see in newer Georgetown communities.
• Georgetown Village: Homes from the late 1990s and early 2000s with original fiberglass batt insulation that’s often compressed and performing well below its labeled R-value. Frequently needs removal before blow-in.
• Berry Creek: Larger homes on the north side with complex attic configurations, multiple HVAC zones, and a higher incidence of pest-damaged insulation. Removal and replacement is more common here than in any other Georgetown neighborhood we work.
• Downtown Georgetown / Old Town: Older homes, some pre-1970, with attic configurations that don’t match standard framing. These jobs require a slower assessment phase and sometimes custom sealing approaches before blown-in will perform correctly.

FAQs – Blown-In Insulation Cost in Georgetown, TX

How much does blown-in insulation cost in Georgetown, TX?

Most blown-in insulation jobs in Georgetown run between $1,800 and $4,200, depending on attic size, current insulation depth, and whether air sealing is included. A 2,000-square-foot home needing a full blow-in to R-49 with air sealing typically lands between $2,600 and $3,600 in the 2026 Georgetown market. To get a flat written price for your specific home, call (254) 970-2136 – estimates are free and the price is in writing before any work starts.

Is it worth adding air sealing when I get blown-in insulation?

Yes, and here’s the specific reason: blown-in insulation slows conductive heat transfer through your attic floor, but it does almost nothing to stop air moving through gaps in that same floor. A blower-door test on a typical Georgetown home built before 2015 reads 3,500 to 5,500 CFM50 before sealing. After sealing and insulating, that number drops to 1,500 to 2,500 CFM50 on the same home. The insulation alone would have left most of that air movement unaddressed. Air sealing adds $600 to $1,200 to the job – and it’s the part that actually changes your cooling bill. We document the before and after numbers so you can verify this yourself.

Can I get blown-in insulation without removing the old insulation?

In most cases, yes. If your existing insulation is dry, pest-free, and not severely compressed, new blown-in material can go directly on top. Old fiberglass batts in acceptable condition add to the starting R-value and don’t need to come out. Removal is necessary when we find moisture damage (which shows up on a thermal scan or moisture meter), rodent activity with droppings or nesting material, or insulation that’s compressed to the point of negligible R-value. If removal is necessary, it adds $700 to $1,100 per 1,000 square feet to the scope and that cost will be on your written price before the crew starts.

What R-value do I need in Georgetown, TX?

Texas energy code requires R-38 in attic assemblies for new construction, but Georgetown’s climate – sitting on the edge of IECC zones 2A and 3A, with sustained summer temperatures above 100°F and attic air temperatures that reach 140 to 150°F – makes R-49 to R-60 the more defensible target for existing homes. At R-49, you need roughly 15 inches of blown fiberglass at settled depth; at R-60, approximately 19 inches. The difference in cost between R-38 and R-60 on a 2,000-square-foot attic is typically $400 to $700 in material. Given that Central Texas summers run five to six months, the payback period on that additional depth is usually three to five years in reduced cooling costs.

How long does a blown-in insulation job take in Georgetown?

A standard attic blow-in on a 1,500 to 2,500-square-foot Georgetown home takes four to seven hours from arrival to crew departure, including the air sealing phase if it’s in scope. Larger attics in Sun City or Berry Creek with complex configurations can run eight to ten hours. Removal jobs add four to six hours to that timeline. The written scope you receive before work starts will include a time estimate for the specific job – not a window measured in business days.

Does blown-in insulation settle and lose R-value over time?

Blown fiberglass does settle, typically 15 to 20% over the first year after installation. That’s factored into the installation depth – we install to the settled-depth specification, not the fresh-blow depth. So if your target is R-49 and that requires 15 inches of settled material, the crew installs to a depth that will settle to 15 inches, not 15 inches that then compress to 12. The depth markers left in your attic after the job allow any future inspector to verify the settled depth against what’s on record. Cellulose settles slightly less than fiberglass but absorbs moisture more readily in certain conditions – the material choice is documented in your written scope so you know exactly what’s in your attic.

Why Envelope Insulation Co. for Blown-In Insulation in Georgetown

The short version: we write the price before we start, we seal before we insulate, and we document what we found and what changed. Those three things are not standard practice across the Georgetown insulation market – we know because homeowners bring us competing quotes and we read them together.

Since 2016, Envelope Insulation Co. has completed work on more than 9,000 homes, every one with a written price before work started and a documented record when the crew left. Wes Okafor leads the operation and has built the Haven Standard around a simple premise: a homeowner who can read the before-and-after blower-door numbers and the written scope doesn’t need to take anyone’s word for anything. The documentation is the evidence.

We’re independently owned and operated. We don’t use proprietary materials – we source from Owens Corning, Johns Manville, Knauf, GreenFiber, and others based on what the job conditions call for. And we offer a free second opinion on any written estimate you’ve already received – bring the quote and we’ll read it with you. That offer stands because we’re confident the comparison will be informative.

The 365-Day Done Right Promise applies to every completed job. If it’s not right, we make it right – that’s in writing, not in a tagline.

For Georgetown homeowners who want to know more about our full range of services, the home page covers every service line we offer, from attic air sealing and blown-in insulation to crawl space encapsulation, radiant barrier installation, and home energy audits.

Key Takeaways

• Blown-in insulation in Georgetown typically costs $1,800 to $4,200, with most full-scope jobs (insulation plus air sealing) landing between $2,600 and $3,600 for a 1,500 to 2,500-square-foot attic.
• Air sealing is completed before any insulation is added – that’s the only sequence that produces a verifiable performance result.
• Before-and-after blower-door numbers are documented on every applicable job so you can see the actual air leakage change, not an estimate of it.
• Georgetown’s climate (IECC zones 2A/3A boundary, 140°F+ summer attic temps) makes R-49 to R-60 the appropriate target for most existing homes, not the code-minimum R-38.
• A written price is issued before any work starts – always. You’ll know the flat number and the full scope before anyone enters your attic.
• Removal is only necessary when existing material is damaged, contaminated, or so compressed it has lost effective R-value. It is documented and priced separately when applicable.
• Estimates are free. Call (254) 970-2136 and you’ll get a written price, not a ballpark.

Get a Free Written Estimate for Georgetown, TX

If you’re comparing blown-in insulation quotes in Georgetown, the most useful next step is a written price that names the material, the target R-value, the depth in inches, and the warranty terms. That’s what every estimate from Envelope Insulation Co. includes, at no cost, before any commitment is made.

Call (254) 970-2136 to schedule your free estimate. A live person answers – no voicemail loop, no callback window. You’ll have a written price in hand before any crew is dispatched to your home. If you already have a quote from another contractor, bring it. We’ll read it with you and tell you exactly what you’re comparing.

Pricing reflects the Georgetown market as of 2026. Topside Attic Insulation Georgetown offers free estimates – call (254) 970-2136.

Written by Wes Okafor, Owner at Envelope Insulation Co., serving Georgetown, TX since 2016.