
On the job
The Install Crew
The same hands from your first measure to the final caulk line — no subcontracted strangers on your property.
Se habla español
Family-Owned · Local Service in Central Texas
Cheap fades. Quality stays.
Tired of a $300 summer bill and a west room that never cools? New windows, doors and siding from a local family — an honest written price, no hidden fees.
Written price at first visit — not after a 4-hour pitch.
Texas Heat, Honestly Handled
You know the exact room. We do too. Here's the honest, sourced version of how new windows help — no exaggerated promises.
Efficient replacement windows seal the leaks, cut the heat load on your AC, and make that room livable again. We'll tell you straight what to expect for your home — because results genuinely vary by house, orientation and climate.
The honest numbers
25–30%
Windows are responsible for roughly 25–30% of a home's heating & cooling energy use (U.S. Department of Energy). Efficient replacements cut that loss. Results vary by home.
What that can be worth per year
Estimated annual energy savings from replacing single-pane windows: about $101–$583 per year, national average ~$295, up to ~$583 for the most-efficient tier — per ENERGY STAR / EPA. Results vary by home and climate. These figures are a share of heating/cooling energy, not a percentage off your total electric bill.
The 90-Second, No-Pressure Estimate
No bait-and-switch. No pushy rep at your kitchen table. Answer a few quick questions and see a real, honest range — before anyone knocks on your door.
Ranges are honest published bands for Central Texas, not a quote. Many factors shape your final number. Sources: industry pricing for the Austin metro; final price comes only from your free written estimate.
The Spirit Swap
The same real Hill Country job: inside during the walkthrough, finished outside at golden hour. One house, one crew, not staged. Drag the handle to compare.
Windows are sold on bill relief and comfort. Resale value is the rational bonus, not the reason.
Steel entry door
Cost recouped at resale, 2024 national average (per the 2024 Cost vs. Value report — an unusually strong year for curb-appeal projects; historically closer to ~100%). Protects resale value. Results vary by region.
Fiber-cement siding
Cost recouped at resale, 2024 national average (Zonda Cost vs. Value). Adds and protects resale value. West South Central region varies.
Vinyl replacement windows
Cost recouped at resale, 2024 national average (Zonda Cost vs. Value). Protects resale value — but windows earn their keep in comfort and bills first.
All figures: 2024 Zonda Cost vs. Value, national average, cost recouped at resale. Framed as resale value protected/added — not a return you earn. Regional and year-to-year results vary.
The Honest Process
We come out, measure, and listen. No four-hour pitch, no commission-hungry closer.
The real number, in writing, line by line. No hidden fees, no surprises later.
Floors and furniture protected, tidy work, daily cleanup. We leave it cleaner than we found it.
We stand behind the work and we're a local call away — same family, same number.
No big upfront cash. You get a written contract, and on jobs over $5,000 Texas law requires your payments be held in a construction account — so your money is protected, not gambled.
Local Family, Personal Service
Serving Central Texas
Zero Subcontractors
Installation
Shown in writing at your estimate
Warranty in writing on every job — exact terms confirmed at your free estimate, before you sign anything. Same family, same phone number, still here when you need us.
Meet the Mowles & Finch families
One local family, one last name, and a crew that treats your home like their own.
The Family Behind The Badge
The Mowles & Finch families started Spirit of Texas because we were tired of watching neighbors get pressured and overcharged by crews that take a deposit and vanish. So we do it the honest way — the real number up front, done right the first time, and stood behind in writing. Today we're still local, still family-run, and still standing behind our work.
“The bitterness of poor quality remains long after the sweetness of low price is forgotten.”
— The Mowles & Finch Families
Founders & owners, Spirit of Texas Windows & Doors
On Every Job
The same people who quote your job show up and do the work — measured, set, and sealed by hand.

On the job
The Install Crew
The same hands from your first measure to the final caulk line — no subcontracted strangers on your property.
Se habla español

Precision work
Detail-Level Fit
Seals checked, glass set true, sightlines dead straight — the close-up details most crews rush past.
Central-Texas homes

Whole exterior
Windows · Doors · Siding
One crew for the whole envelope — no juggling three companies and three schedules to finish your home.
One crew, start to finish
In Our Neighbors’ Own Words
We'd rather you hear it from real neighbors than read a star average.
“Shared with written permission” means exactly that: a real customer’s own words, published only with their written permission — never invented, never padded, and never a star average we can’t back up. How we gate reviews →
Make It Fit the Budget
A big job doesn't have to be a big up-front decision. Here's an illustrative example of how financing can spread out the cost — exact terms confirmed at your written estimate.
Illustrative example only — not a stated offer
Illustrative example only, not a real offer: a nine thousand dollar example job, at an example payment of about one hundred twenty nine dollars per month, at zero percent if qualified.
*Illustrative example only, with approved credit; terms, lender and availability vary and are not guaranteed. We'll walk you through the real numbers at your free estimate — no obligation.
One Trusted Crew, The Whole Exterior
Service
$12,000–$22,000+ · 2 Days
Scope, timeline, six real photos and an honest price band from one real Spirit of Texas job.
Read the case study →
$4,000–$9,500+ · 1 Day
Real photos and an honest price band for a large sliding-door replacement.
Read the case study →
$6,000–$16,000+ · 1–2 Days
A comprehensive exterior refresh, real photos and an honest price band.
Read the case study →
One Local Family · Local Service · One Trusted Crew
The honest, no-pressure alternative to the big national window chains — a real written number, one trusted crew, and a warranty in writing on every job.
See Your Price in 90 SecondsThe Honest Comparison
The whole point of a local family shop is that it's different. Here's exactly how, side by side.
Sources: typical practices reported for national window-and-door chains (industry reporting and customer complaints); not a claim about any specific company.
Both — we can replace just the glass unit (foggy/failed seals) or the full window and frame. We'll tell you honestly which one your home actually needs at the estimate; glass-only is cheaper but isn't always the right fix.
Installation timing depends on the scope of your project. Siding and larger door/window combination jobs can run longer — you'll get a real timeline in writing with your estimate, not a guess.
We'll ask you to be home (or reachable) for the walkthrough at the start and the final walkthrough at the end. Day-to-day, many homeowners are comfortable stepping out once the crew is set up — we'll talk through what works for you.
Ask us — flexible monthly options may be available for qualified buyers. Exact terms, lender and APR are confirmed at your free written estimate; see our financing page for the honest, gated details. There's also a federal tax credit and local rebates that can lower your real cost — see our rebates & incentives page.
Warranty terms (including transferability) are confirmed in writing at your estimate — we don't want to promise a transfer policy here that isn't the real one. See our warranty page.
Peak-summer install slots are going fast — get your free estimate on the calendar now.
Ready When You Are
Transparent pricing and the real number in writing. Call when you're ready — we'll still be here.
No Pressure, Ever
The real number, in writing — before anyone knocks on your door. Our local team follows up within one business day.