New Windows That Cut Energy Bills & Boost Curb Appeal
Energy-efficient window installation and replacement done right the first time — honest pricing, clean installs, and most jobs finished in 1–2 days.
- Licensed & Insured
- Free In-Home Estimates
- Manufacturer Warranty
✓ 100% free, no-pressure in-home estimate — most quotes back within 24 hours.
Get Your Free Window Quote
No obligation — most quotes back within 24 hours.
0% Interest Financing Is Available!*
*On approved credit. See financing options
Up to 30% Energy Savings
Financing Available
Most Jobs in 1–2 Days
Every Window Style, Expertly Installed
From energy-efficient replacements to brand-new custom installs — we handle it all across Dallas and the DFW metro.
Double-Hung Windows
Classic, easy-to-clean windows with two operable sashes for great ventilation.
Casement Windows
Crank-out windows that seal tight for maximum energy efficiency and airflow.
Window Replacement
Upgrade old, drafty windows with energy-efficient replacements that pay you back.
Window Installation
Full-service installation for new construction, remodels & custom shapes.
Why Dallas Homeowners Choose AG
We built this company on referrals and repeat customers — because we treat your home like our own.
No High-Pressure Sales
Honest recommendations and fair, upfront pricing — never a pushy quote.
Premium Materials
Energy-efficient windows from trusted manufacturers, backed by warranty.
Fast, Clean Installs
Most standard replacements are done in 1–2 days, with a tidy job site.
Local & Accountable
Family-owned in Garland — we stand behind every window 100%.
Calculate Your Energy Cost Savings
How much is your energy bill? Slide to see roughly what new ENERGY STAR windows could save you each year.
if your home has single-pane windows. About $125/year with older double-pane.
*Based on ENERGY STAR estimates for our climate zone: replacing single-pane windows cuts household energy bills about 12% on average, and replacing double-pane clear glass about 7%. Your savings depend on your home, sun exposure and HVAC system.
New Windows Now, Low Monthly Payments
You may qualify for affordable monthly payment plans — so you can upgrade to energy-efficient windows without paying it all upfront.
How it works (Our process)
Enhance your home’s energy efficiency, security, and style with expert window solutions. From new installations to full replacements, we’ve got you covered
1. Get a Free Estimate
Reach out to us for a no-obligation quote tailored to your needs. Our team will assess your requirements and provide a transparent pricing estimate—no hidden fees, just honest service.
2. Schedule Your Service
Once you’re ready, pick a date that works best for you. We’ll coordinate everything to ensure a smooth and hassle-free experience, minimizing disruptions to your home or business.
3. Enjoy Hassle-Free Installation
Our experienced professionals handle everything with precision and care. From removal to installation, we ensure a clean, efficient process so you can enjoy your new windows without any stress!
Neighbors Who Chose AG Window Service
Real homes across Garland and Dallas County, photographed on the day we finished. Every sign in these pictures belongs to a customer who let us share their install.
Window Installation Across the DFW Metro
Based in Garland and serving homeowners throughout the Dallas–Fort Worth area.
Ready for Windows You'll Actually Love?
Get a free, no-pressure in-home estimate from a family-owned Dallas-area window team. Most quotes back within 24 hours.
Tell Us About Your Windows
A real person from our Garland office reads every message, and most quotes go out within 24 hours. Prefer to talk? Call us.
Get Your Window Quote
Takes about a minute. No obligation.
0% Interest Financing Is Available!*
*On approved credit. See financing options
No obligation·We measure every opening·Quotes back within 24 hours
Frequently Asked Questions
Yes. We measure every opening, look at the condition of your frames, and leave you an itemized quote. No charge, no obligation, and no follow-up pressure.
A single window is often a few hours. A whole house is usually one to two days. Custom sizes add lead time on the order, not on the installation itself.
No. Plenty of homeowners start with the worst elevation — normally whichever side takes the afternoon sun — and finish the rest later. Doing it all at once costs less per window, but it is not required.
Sometimes, and we will tell you when. If the frame is sound and the fault is hardware or a seal around the trim, repair is cheaper. Once the glass seal itself has failed, no repair brings the insulating gas back. We fit replacement windows rather than carrying out repairs, and we will tell you plainly if a simple hardware fix is all you need. We fit replacement windows rather than carrying out repairs, and we will tell you plainly if a simple hardware fix is all you need.
Yes — low monthly payment options are available. Worth asking about during your estimate if you are doing the whole house.
Garland and across the Dallas–Fort Worth metro, including Dallas, Plano, Richardson, Rowlett, Mesquite, Frisco and the surrounding cities.