Direct-from-manufacturer windows installed by Guardian’s certified crews.
We’ll inspect the issue and give you honest options.
You feel cold air in the winter. You see condensation. You’ve had five salespeople tell you five different things. Who do you believe?
The real culprit: That cold air? It's usually coming through the flashing, not the window. New glass won't fix that.
The band-aid trap: If your wall is leaking air, a new window is just expensive tape. The leak is still there.
The hidden danger: Super-tight new windows + bad attic ventilation = mold. We've seen $50,000 window jobs create health hazards because nobody checked the attic.
The $50,000 mistake: We get calls every month from homeowners who bought new windows and still have drafts. Because the problem was never the windows.
You shouldn’t have to replace perfectly good windows just because nobody bothered to find the actual problem.
We inspect attic ventilation, flashing, and the whole building envelope — not just the glass.
We work with Pella, Marvin, Anderson, plus vinyl and hybrid brands. We’re product-agnostic with no exclusivity agreements. We match the window to your home, not a quota.
Most companies won’t even show up unless you replace multiple windows. We show up for one-window estimates. Why? Because we’re there to solve your problem, not hit a commission.
We offer a $20,000 insured wall guarantee on LifeGuard installations. Backed by third-party insurance. Not just an “I promise.”
We examine your windows, attic, flashing, and building envelope.
We examine your windows, attic, flashing, and building envelope.
We tell you what’s really causing the problem — even if we don’t make a sale. That’s the truth.
We present repairs, reinstallation, or replacement. We give you the options the other guys are hiding.
LOCAL EXPERTS
Guardian Home Improvements serves homeowners across Milwaukee, Waukesha, New Berlin, and surrounding areas with expert window repair and replacement. We specialize in identifying draft issues other contractors miss. We offer premium options from Marvin, Pella, Anderson, and leading vinyl manufacturers. Whether it’s a single foggy window or a full-home replacement, we uncover exactly what you need.
4.8 - star rated by 530+ happy customers
Most homeowners overpay because no one diagnosed the real problem first. Let’s fix that.
