Window Replacement

If your Austin home still has its original single-pane or early double-pane windows, you’re likely paying hundreds of dollars more per year in energy costs than necessary — and living with drafts, street noise, and UV damage to your furniture and flooring. In a climate where cooling your home accounts for the largest portion of your energy bill and summer temperatures stay above 95°F for months, energy-efficient window replacement is one of the highest-impact upgrades an Austin homeowner can make. Onward Home installs premium replacement windows with professional measurement, expert installation, and a clean, one-day process. Call today for a free estimate.

Why Austin Homes Need Window Replacement

Central Texas summers are long and brutal on residential windows. From May through September, Austin homes endure daily high temperatures between 95°F and 105°F, with intense solar radiation striking south- and west-facing windows for hours. Single-pane windows and older double-pane windows with failed seals allow that heat to transfer directly into your living space, forcing your air conditioning to work harder and longer.

The energy impact is substantial. According to the U.S. Department of Energy, heat gain and loss through windows accounts for 25–30% of residential heating and cooling energy use. For Austin homes, where cooling dominates the energy bill, upgrading to modern low-E (low emissivity), argon-filled, double- or triple-pane windows can reduce window-related energy loss by 30–50%. Many Austin homeowners report annual energy savings of $300 to $800 after window replacement, depending on home size and the number of windows replaced.

Beyond energy savings, new windows improve daily comfort. You’ll notice fewer hot spots near windows, reduced outside noise (particularly important along busy Austin corridors like MoPac, I-35, and Lamar), better UV protection for furniture and hardwood floors, and improved curb appeal. Modern windows also operate smoothly — no more stuck sashes, broken locks, or painted-shut frames.

Our Window Replacement Process

1. Free In-Home Consultation — We visit your home, assess your existing windows, discuss your priorities (energy efficiency, noise reduction, aesthetics, budget), and take precise measurements of every window opening. This consultation takes approximately 60 to 90 minutes. There is no cost or obligation.
2. Custom Proposal — Within 48 hours, you receive a detailed proposal specifying the exact window model, glass package, frame color, and hardware for each opening. We include energy performance ratings (U-factor and Solar Heat Gain Coefficient), manufacturer warranty details, and a complete price breakdown.
3. Manufacturing — Your windows are custom-manufactured to the exact dimensions of each opening. Lead time is typically 3 to 6 weeks depending on the manufacturer and window style. We keep you updated on production status and confirm your installation date as soon as windows ship.
4. Professional Installation — Our installation crews specialize in window replacement. We remove the old window, inspect and repair the rough opening and framing as needed, install the new window with proper shimming and leveling, apply weatherproof flashing and sealant, and install interior and exterior trim. Most homes (10–15 windows) are completed in a single day.
5. Cleanup & Walkthrough — We remove all old windows and packaging, clean the new glass inside and out, vacuum any debris, and walk through every window with you — demonstrating operation, locks, tilt-in cleaning features, and screen removal. We register your manufacturer warranty before we leave.

Types of Windows We Offer

Single Hung Windows

Single hung windows have a fixed upper sash and a lower sash that slides up to open. They are one of the most affordable and widely available window styles, making them a popular choice for budget-conscious homeowners. Because there is only one moving sash, single-hung windows have fewer components that can fail over time and typically offer a slightly tighter seal than double-hung models. They work well in bedrooms, hallways, and any standard window opening where top-sash operation is not needed.

Double-Hung Windows

The most common window style in Austin homes. Both the top and bottom sashes slide up and down, and most modern double-hung windows have tilt-in sashes for easy cleaning from inside the home. Ideal for bedrooms, living rooms, and any standard window opening.

Casement Windows

Casement windows are hinged on the side and crank open outward. They provide excellent ventilation and a tight seal when closed, making them highly energy efficient. Popular for kitchens, bathrooms, and above sinks or countertops.

Sliding Windows

Sliding windows open horizontally and are ideal for wide openings and contemporary home styles. They provide unobstructed views and are easy to operate. Common in Austin mid-century modern and ranch-style homes.

Picture and Fixed Windows

Fixed windows that don’t open — designed purely for light and views. They offer the best energy performance since there are no operable seals. Often used for large living room or great room installations, transom windows above doors, and decorative accent windows.

Bay and Bow Windows

Bay windows project outward from the wall (typically three panels at angles), creating additional interior space and architectural interest. Bow windows are similar but use four or more panels in a gentle curve. Both add significant curb appeal and are a signature feature in many Austin neighborhoods.

Specialty Windows

We install arched windows, circle-top windows, geometric shapes, and custom configurations to match your home’s architectural style. Whether you have a traditional Hill Country home or a modern downtown Austin condo, we source and install windows that fit.

Frame Materials

Material	Benefits	Best For
Vinyl	Most affordable, excellent insulation, zero maintenance, no painting	Budget-conscious projects, standard window sizes
Fiberglass	Premium durability, minimal expansion/contraction, paintable	Long-term performance in extreme heat
Wood (clad)	Interior wood beauty with exterior aluminum or fiberglass cladding for weather protection	Historic homes, high-end renovations
Aluminum	Narrow sightlines, modern aesthetic, strong	Contemporary architecture, commercial-style residential

Brands We Install

We are authorized installers for Provia, Andersen, Pella, Marvin, AMSCO, and MI. Each manufacturer offers different product lines ranging from value-grade to premium, and we help you select the right balance of performance, aesthetics, and budget.

Frequently Asked Questions

Will new windows reduce my energy bills in Austin?

Yes. Austin homeowners who upgrade from single-pane or failed double-pane windows to modern low-E, argon-filled windows typically see a 15–30% reduction in cooling costs. For a home spending $250/month on electricity during summer, this can translate to $40–$75 per month in savings during cooling season. The savings are most dramatic for south- and west-facing windows that receive direct afternoon sun.

What is low-E glass and do I need it in Austin?

Low-E (low emissivity) glass has a microscopically thin metallic coating that reflects infrared heat while allowing visible light to pass through. In Austin, low-E glass keeps solar heat outside during summer and retains heated air inside during winter. For the Austin climate, you want low-E glass with a low Solar Heat Gain Coefficient (SHGC) — ideally 0.25 or lower — to minimize the amount of solar heat entering your home. All of the windows we install include low-E glass as standard.

Can I replace just some of my windows?

Absolutely. While replacing all windows at once provides the most uniform appearance and energy performance, many homeowners start with the highest-priority windows — typically south- and west-facing windows that receive the most sun exposure, or windows in rooms with the most noticeable drafts and temperature issues. We can phase a window replacement project over multiple visits if needed.

Do replacement windows require a permit in Austin?

Window-for-window replacement (same size opening, no structural changes) typically does not require a permit in the City of Austin. If we’re modifying the opening size or adding a new window where none existed, a permit is required. We handle all permitting when applicable.

---

We provide window replacement in Austin, Round Rock, Cedar Park, Pflugerville, Georgetown, Dripping Springs, Kyle, Buda, Lakeway, Bee Cave, Leander, Hutto, and all of Central Texas.

Schedule your free in-home window consultation today. Call (512) 643-0087 or fill out the form on this page.

---