Bob Bird
August 29, 2026
In over 25 years of fixing uncomfortable homes in Atlanta, I have met hundreds of homeowners who were convinced their windows were the primary cause of their high utility bills and sweltering rooms. Often, they’ve already had a “window expert” out to their home—a salesman who spent two+ hours demonstrating how a $20,000 to $50,000 window replacement project is the only “silver bullet” for their comfort woes.
I am here to tell you that, in my experience, more often than not, those “experts” are wrong.
Before I began my Home Performance career, I too naturally believed windows and doors would be the first place to begin comfort and energy efficiency improvements. So I completely understand how it’s an easy assumption – although very wrong.
I can prove my opinion!
Bird Family HVAC & Insulation currently participates in SEVEN home energy rebate or limited income programs sponsored by utility companies, and the U.S. and Georgia Government. We have been extensively trained and working in these programs since 2003, in two states! We have upgraded many thousands of homes over these many years, being paid by tax dollars and utility dollars. In the rebate programs, our upgrades have earned our homeowners many thousands of rebate dollars! And you better believe, these programs have strict guidelines that must be followed.
Here is the sobering reality: in my memory, never, not one time, not one program we’ve participated in, has there been an assignment nor a rebate for replacing old windows. There is a tax credit from the federal government for upgrading windows.
We are required to use blower doors to test-in, and test-out (after our improvements) of these homes. We use pressure pans, duct blasters, and flow hoods to test air ducts. Nothing is left to guesses.
In the early 2000s, we received our first training by Southface Energy, on behalf of Georgia Power Company. Our training was linked to the ENERGY STAR program with the Department of Energy. We were taught that windows are a C priority, on a scale of A-E with A being top priority for energy and efficiency improvement. Ceiling insulation, air sealing, and air-duct sealing is always, usually without exception – an A and B priority for our clients. And it is the A & B priority improvements that we are paid to perform.
There are exceptions, for instance jalousie windows were always flagged, due to the large amount of air infiltration. However, we were never paid to replace them. If the homeowner didn’t use them (open and close them), we’d recommend placing plexiglass over the window unit. In a few select programs, we could attach a piece of plexiglass over the jalousie window, and qualify the improvement as air sealing.
Remember, my training applies to Atlanta, GA. If you are reading this in Colorado, I’m not your expert.
To my knowledge, for my market area (Atlanta, and north Georgia) the only incentive for a homeowner to replace windows is the federal tax credit. There may be something out there, but I am not aware of it.
The Illusion of the Window “Problem”
When a room is too hot in the summer, your eyes naturally gravitate toward the windows. You see the sunshine pouring in and feel the glass, or feel the warm floor or furnitiure where the sunshine hits, which is understandably warm to the touch. It seems like a no-brainer: replace the window, solve the heat gain.
However, at Bird Family HVAC & Insulation, we don’t guess; we use data to teach. I have found that in the great majority of cases, the window isn’t the main culprit—the attic and the air ducts are. Also, if the exterior is a darker color, it absorbs more heat than a lighter colored exterior. Pre 1960 Atlanta homes generally weren’t built with much if any wall insulation. Hollow walls easily allow heat transfer (summer heat gain and winter heat loss).
We aren’t anti-window! We will tell you to add a solar or thermal shade to this or that window to better control the heat gain or heat loss at that specific window. You have so many on-line options now for controlling heat gain and heat loss through windows.
The $25 Tool That Beats a $35,000 Quote
I carry a $25 infrared thermometer on my belt. It is a simple tool with a laser pointer that identifies temperatures instantly. When I’m in a client’s “uncomfortable room,” I don’t just look at the window. I point that red dot at the ceiling, the exterior walls, whole-house exhaust fans, and especially the HVAC vents.
I’ve often shown homeowners that while their windows are warm (or cold), their ceiling (or the exterior wall) is a much larger ratio to the room size and is negatively influencing the overall room climate because of poor insulation. Or their supply vents are blowing 80-degree air (in summer) because the ducts are sitting in a sweltering attic. Replacing your windows won’t fix the barely-insulated ceiling, won’t improve air flow from a vent, nor resolve a “hot pipe” delivering your air conditioning.
Where the “Experts” Get It Wrong
Window companies sell products; we sell solutions.
When you have an uncomfortable room, we look at the whole house using a holistic “Home Comfort Audit” approach.
| Common Misconception | The Real Comfort Culprit |
|---|---|
| “The room is hot… because of the sun shining through the glass.” This may be correct if the wall area is majority glass. | Lack of adequate (16″) attic insulation, or wall insulation, HVAC issue, etc. |
| “Drafts are coming through the window frames.” | That’s airsealing. Buy a $12 tube of caulk. Airsealing applies to any window installation. |
| “The AC isn’t strong enough for this room. Time to replace our system.” | Leaky, poorly designed, or kinked & twisted ducts. Or a deficit in Return-air flow. Or a dirty air filter. |
| “We need new windows to lower our energy bills.” | Attic insulation, air-sealing, and duct sealing provide a much higher ROI. |
Airflow: The Forgotten Variable
Often, the “uncomfortable room” issue is an airflow problem disguised as a window problem. We use a flowhood (balometer) to measure exactly how much air is entering and leaving a room.
In many Atlanta homes, rooms are chronically short on Return-air flow. My adage with homeowners is simple: “Air-in should equal air-out. It’s like breathing: Inhale/exhale!” If the uncomfortable air in the room isn’t being vacuumed back to the HVAC machine, fresh conditioned air isn’t efficiently replacing it. You could have triple-pane, museum-quality glass, but if your airflow is restricted, that room will stay uncomfortable.
A Stewardship-First Approach
As a Kingdom-based, home-service business, our philosophy is “Always do what’s right”. And that includes being watchmen for our clients’ pocketbooks. Spending $35,000 on windows when a $9,000 attic makeover and air-duct modification would solve the problem is not good stewardship. After spending the $35,000 you’ll still find that you need to address the A and B priority issues.
Before you sign a contract for new windows, ask yourself: “Have I addressed the A and B priority issues in my home first?“ If the answer is no, give us a call. We’ll bring the tools, show you the data, and give you the truth.
You may ask, “Bob, have you replaced your windows?” In full disclosure, around 2009 I personally replaced all of my 1976 single-pane windows with Pella Thermopane double-pane units purchased from Lowes. However, I did this after I’d handled all of my A and B priority issues! The single biggest improvement we noticed was how much quieter it was.
Finally, there may be a home energy program out there that pays for replacement windows. However, I’ve not been apart of one of those programs. Nor am I aware of one.
Ready for a real solution?
Call Nicole at 404-538-9168 to discuss a schedule to get one of our experts, Beau or Christopher Bird, to your home! If you’re interested in us measuring the air flow from your vents, Nicole can discuss this too! There is a small fee when Beau or Chris performs diagnostic tests.
Thanks for reading!
God Bless You.
