Professional Window Replacement for Your Home
Your windows do more than frame the view — they regulate your home’s temperature, block outside noise, protect against storms, and define your exterior’s character. When they stop performing, your energy bills climb, your comfort drops, and your curb appeal suffers.
Obsidian Exteriors provides full-service window replacement for homeowners across Alpharetta, Johns Creek, Suwanee, Marietta, and throughout North Metro Atlanta. With over a decade of hands-on experience in exterior renovations, we handle everything from a single window swap to a whole-home replacement — on time, on budget, and built to last.
Schedule Your FREE, No-Obligation Quote Today — Just Fill Out the Form Below.
Replace Your Windows With a New Professional Look
Transforming your home’s exterior can enhance its curb appeal and give it a refreshed, polished look. Let us give your home the makeover it deserves and make it look brand new again!
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Obsidian Exteriors installed all the windows in my new build home. Was very impressed at how efficient and meticulous they were with the whole process from helping me choose the… read more
Marissa Velazquez
May 21, 2025Obsidian Exteriors did some concrete work for my patio and it turned out AMAZING!! I’m super happy with the quality of work they do and I cannot recommend them enough.… read more
Sally Hermosillo
May 26, 2025Muy buena trabajo, super profesional, unos de los encargados se ve que saben lo que hacen. Recomendable.
Jonny Adrian Terra
February 17, 2026 -
The project was completed quickly and efficiently! Jorge even cheerfully fulfilled my special requests! All for a great price!
James B. Altman
November 18, 2025Great company ! New gutters installed quickly and neatly. The crew showed up on time and left the property spotless. We no longer have water flooding our flower beds!
Jonathan Rivas
January 29, 2026My chimney was damaged during a brutal storm. It was bad but Obsidian Exteriors helped out and made it look NEW. Would recommend to family and friends 5 stars !!
Brandon Baker
July 15, 2025 -
When I needed some siding repairing jobs done at my house and I didn’t quite know how to fix it myself I decided to call Jorge to get it done… read more
torres jose
July 15, 2025Hired them for a client did a Great job with siding and window install 10-10 recommend
Emilio Castaneda
May 22, 2025My house not only looks amazing, but I also feel confident knowing the job was done right. The project manager made sure everything I needed was taken care of! They… read more
Stephanie Moreno
February 18, 2026
Experience You Can Count On
Transparent Pricing, No Surprises
Your Home, Expertly Upgraded
Expert Craftsmanship, Every Time
Give us a Call Today for a Free Quote!
404-944-5847
Why Replace Your Windows?
Old or damaged windows cost you money every month. Drafts force your HVAC system to work harder. Moisture seeping through failed seals leads to mold and rot. And single-pane glass does almost nothing to block Georgia’s summer heat.
Replacing your windows delivers measurable returns:
- Lower energy bills — Modern double-pane and triple-pane windows with Low-E glass can reduce heating and cooling costs by 15-25%, according to the U.S. Department of Energy.
- Increased home value — Window replacement consistently ranks among the top home improvement projects for ROI, recouping 60-70% of the cost at resale.
- Better comfort — No more cold spots in winter or hot zones in summer. New windows maintain consistent indoor temperatures throughout your home.
- Reduced outside noise — Multi-pane glass with argon or krypton gas fills significantly dampens traffic, lawn care, and neighborhood noise.
- Improved security — Modern locking mechanisms and impact-resistant glass options provide better protection than older single-latch windows.
Window Types We Install
Every home is different, and the right window depends on your budget, your home’s architecture, and your performance priorities.
Window Styles Available
- Double-Hung — The most versatile and common style. Both sashes tilt in for easy cleaning.
- Casement — Hinged on the side, cranks open for maximum ventilation and an unobstructed view.
- Picture — Fixed glass for large openings where ventilation isn’t needed. Maximizes natural light.
- Sliding — Glides horizontally on a track. Great for wide openings and rooms facing walkways.
- Bay & Bow — Projects outward to create depth, extra light, and a focal point in living rooms and kitchens.
- Awning — Hinged at the top, opens outward. Allows ventilation even during light rain.
Our Service Area
Alpharetta, GA
Auburn, GA
Buford, GA
Cumming, GA
Dacula, GA
Grayson, GA
Johns Creek, GA
Lawrenceville, GA
Loganville, GA
Marietta, GA
Milton, GA
Snellville, GA
Sugar Hill, GA
Suwanee, GA
Have Questions? Call Now for a Consultation!
404-944-5847
Our Window Replacement Process
We keep the process straightforward so you know what to expect at every step. We inspect your current windows, discuss your priorities (energy savings, noise reduction, aesthetics, budget), measure every opening, and provide a detailed written estimate — no pressure, no obligation.
Based on your home’s needs and your budget, we help you choose the right frame material, glass package, and style for each opening. Not every window in your home needs to be the same type — we tailor the selection room by room.
Our crew removes your old windows, inspects the framing for any hidden damage (rot, water intrusion, structural issues), makes repairs if needed, and installs your new windows with proper shimming, insulation, and weathersealing. We protect your floors, walls, and landscaping throughout the process.
Signs You Need Window Replacement
Not sure if your windows need replacing? Look for these indicators:
- Drafts near closed windows — Hold a candle or lighter near the frame. If it flickers, air is getting through.
- Condensation between panes — Fog or moisture trapped between glass layers means the seal has failed. The insulating gas is gone and the window’s thermal performance is compromised.
- Difficulty opening or closing — Warped frames, failed balances, or painted-shut sashes indicate windows that are past their useful life.
- Visible frame damage — Rot, cracking, peeling, or soft spots in wood frames. Warping or discoloration in vinyl frames.
- High energy bills — If your HVAC runs constantly and certain rooms are always too hot or too cold, your windows may be the culprit.
- Outside noise is louder than it should be — Single-pane windows or windows with failed seals do little to block exterior noise.
- Your windows are 15-20+ years old — Even well-maintained windows degrade over time. Glass coatings break down, seals fail, and hardware wears out.
If you’re experiencing two or more of these, a replacement will likely pay for itself in energy savings and comfort within a few years.
Why Obsidian Exteriors for Window Replacement?
Obsidian Exteriors is a family-owned company rooted in the North Metro Atlanta community. When you call us, you talk to the people who will be working on your home — not a call center.
We’ve been transforming home exteriors for more than 10 years. Windows are one piece of what we do — we also handle siding installation, gutter systems, deck building, and custom pergolas. That means we understand how every exterior component works together.
Your Full Exterior Partner
Need windows and new siding? Windows and a deck rebuild? We coordinate multi-service projects so you deal with one company, one timeline, and one point of contact — not three separate contractors.
Have Questions? Call Now for a Consultation!
404-944-5847
Window Replacement Services Frequently Asked Questions (FAQ)
How much does window replacement cost?
Window replacement costs vary based on the number of windows, frame material, glass package, and installation complexity. We provide free, detailed estimates so you know exactly what to expect for your specific project.
How long does window replacement take?
Most whole-home window replacements (10-15 windows) are completed in 1-2 days. A single window or a few windows can often be done in a few hours. We schedule a specific installation date and stick to it.
Do I need to replace all my windows at once?
No. You can replace windows in phases, starting with the ones that are in the worst condition or the rooms where you notice the most drafts. We can help you prioritize based on energy impact and budget.
Will new windows really lower my energy bills?
Yes. If you’re replacing single-pane windows or windows with failed seals, you’ll see a noticeable difference in your heating and cooling costs. The exact savings depend on your home size, current windows, and the glass package you choose, but 15-25% reductions in HVAC costs are common.
What's the difference between double-pane and triple-pane windows?
Double-pane windows have two layers of glass with an insulating gas fill between them. Triple-pane adds a third layer and a second gas fill for even better insulation and noise reduction. Triple-pane is typically recommended for extreme climates or high-noise areas. In Georgia, high-quality double-pane with Low-E coating is usually the best value.
Do you offer financing?
Contact us to discuss payment options for your window project. We work with homeowners to find solutions that fit their budget.