Request a Free Estimate
Fill out the form and we'll get back to you within the hour - or call us directly for faster service.
Or Call Us Directly
We answer 24/7. A real person picks up - day or night - and gets your local team moving.
(737) 337-8049San Marcos, TX 78666
Contact Topside Attic Insulation San Marcos - Free Insulation Estimate in San Marcos
Call us at (737) 337-8049 for a free insulation estimate in San Marcos. When you reach our live coordinator, they’ll connect you with our local team. There’s no hard sell, no pressure to decide on the spot, and no charge for the assessment. Same-day appointments are often available, and we’ll give you a real time window, not “sometime Tuesday.”
What Happens When You Call
Step 1: A live coordinator answers and connects you. You’ll speak with someone who can access our San Marcos schedule in real time. They’ll ask what you’re experiencing - high summer bills, uneven room temperatures, ice dams, or just a home built before modern sealing standards - and what times work for you.
Step 2: We schedule a full attic assessment. A technician arrives in a marked vehicle, introduces themselves by name, and texts you when they’re on the way. They’ll inspect your attic floor, top plates, can lights, duct chases, and any kneewalls. They take photos and blower-door readings so you can see what they see.
Step 3: You receive a written estimate before anyone starts. This is Haven Standard Clause 1: flat price, written scope, written warranty. The estimate lists exactly what we’ll seal, what insulation we’ll add, the R-value you’ll get, and the brands we recommend. Johns Manville and Rockwool are common choices in the San Marcos market for their performance in our heat and humidity.
Step 4: We complete the work and leave documentation. After sealing and insulating, we run the blower door again. You get the before-and-after numbers, photos of the completed work, and a workmanship guarantee in writing. Payment is due only when the documented record matches the written scope.
Why San Marcos Homeowners Call Us First

- We answer the phone 24/7. Mon through Sun, a live coordinator picks up. No voicemail roulette when your AC is running nonstop in August and you’re trying to figure out why your upstairs won’t cool below 78.
- Every pro working under our name is required to hold the license and insurance their state requires. We verify it before they ever set foot in a San Marcos home. Their license number appears on your written estimate, and our general liability and workers compensation coverage protects your property while we’re in it.
- Transparent pricing with no hidden fees. The price on your written estimate is the price you pay. We don’t discover “surprise rot” that doubles the bill, and we don’t upsell at the door. Haven Standard Clause 5: no surprises.
- Our workmanship is backed by a written guarantee. If the blower-door number doesn’t improve or the insulation settles below spec in the first year, we come back and make it right. That guarantee is in writing before we start, not promised verbally after the check clears.
Before
AfterOur Service Area Around San Marcos
We regularly serve San Marcos, Redwood, Kyle, Lockhart, and Buda with same-day or next-day availability. For Shady Hollow, Lost Creek, Austin, Hornsby Bend, Lakeway, Lago Vista, and Bastrop, we typically schedule within 48 hours depending on current job volume. If you’re outside these areas - Wimberley, Dripping Springs, New Braunfels, Seguin - call anyway. Our coordinator will tell you honestly whether we can reach you or recommend someone local who works to similar standards.
Frequently Asked Questions - Booking & Estimates

Yes. The attic assessment, blower-door test, photos, and written estimate cost you nothing and obligate you to nothing. We believe you should see the evidence before you decide. Call (737) 337-8049 to schedule - estimates are always free.
Same-day appointments are often available, and next-day is typical. Our live coordinator checks real openings when you call. Summer demand peaks in July and August, so calling earlier in the week helps. For the fastest response, call (737) 337-8049 and we’ll find the next available window.
No. Our rates are the same whether we assess your attic on a Tuesday morning or a Saturday afternoon. The written estimate reflects the work, not the calendar. Call (737) 337-8049 to book a time that actually works for your schedule.
Your address, a brief description of what you’re experiencing, and any recent energy bills if you have them handy. Don’t worry about attic access or knowing your current R-value - that’s our job to determine. The coordinator will ask what times work and whether you prefer a call, text, or email confirmation. Call (737) 337-8049 whenever you’re ready.
We accept check, major credit cards, and financing through our third-party partner for qualifying jobs over a certain threshold. Payment terms are spelled out in your written estimate before work begins. For questions about financing or to discuss payment timing, call (737) 337-8049 and our coordinator will connect you with the right information.
Call or Request a Callback
(737) 337-8049
We’re here 24 hours a day, every day of the week. If you prefer, ask our coordinator to schedule a callback at a specific time. No pressure, no urgency theater, just a free written estimate with real numbers and real documentation. Wes Okafor leads our local team, and every job we complete in San Marcos carries the Haven Standard that has governed 9,000+ homes since 2016.
Written by Wes Okafor, Owner at Topside Attic Insulation San Marcos, serving San Marcos and surrounding communities since the branch opened.