Think It's Your Windows? It Usually Isn't.

Most drafts are a flashing problem, not a window problem. Get a real diagnosis first. 30,000+ homes. Third-party insured.

4.8 - star rated by 530+ happy customers

Schedule Your Free Assessment

We’ll inspect the issue and give you honest options.

Step 1 of 3

What kind of project do you want an assessment for?(Required)

Five Window Companies. Five Pitches. One Agenda.

Every window company sells windows. So nobody asks why your house is actually cold.

Almost every brand is built from the same few glass and frame makers. The install is what differs.

New windows, same draft. Because the draft was never the window.

“Energy savings” is the last reason to replace a window. And the first one a salesman gives you.

A bad install costs more than the window. Caulk fails in 5 to 7 years. Then water is in your walls.

The Window Matters Less Than What's Behind It.

Your window, siding, and flashing went in together as one system. Replacing a window cuts that system apart.

Most companies caulk the new one in and leave. We rebuild things the right way.

Trade a draft today for mold in five years, or fix it once. We fix it once.

Window replacement by Guardian Home Improvements in Wisconsin

What If Someone Found The Real Problem First?

You shouldn’t have to replace perfectly good windows just because nobody bothered to find the actual problem.

A real diagnosis

Drafts, leaks, condensation, bills. We find the source.

The right install

Permanent flashing, not a bead of caulk.

Every brand

We carry them all, so we pick the right one for you.

Real protection

Third-party insured workmanship.

We Carry Every Major Brand. On Purpose.

The window is close to a commodity. We represent them all so we pick the right one for you, not the one that pays us most.

A Better Way To Buy Windows

1

Inspect.

We find what is letting the cold in. Often it is not the window.

2

Diagnose.

The truth, even if you do not need new windows.

3

Fix.

The right windows, installed right. Or the right repair.

Questions Homeowners Ask Us

Do I even need new windows?

Often, no. We fix the flashing or the install and the problem goes away. We tell you the truth.

Which brand is best?

The brand barely matters. The install does. We carry every major brand so we pick the right fit.

Why are you more than the other quote?

Because we rebuild the system around the window. A cheap install costs you the wall five years later.

LOCAL EXPERTS

Wisconsin's Trusted Window Replacement 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.

The expert's expert. 30,000+ homes in 30 years.

We trained Wisconsin's state home inspectors.

We advise Fortune 500 companies on building science.

We are certified with every major brand and owned by none.

"He was the complete opposite of the pushy salesman." — Coleman Brown, Guardian customer

TESTIMONIALS

See Why Your Neighbors Trust Guardian

4.8 - star rated by 530+ happy customers

Andy came out to assess the workmanship on an in-progress roofing and siding job that was being done on our house and garage by another company. Andy was very forthcoming and patient while listening to our concerns, and he pointed out every issue he found and explained why they were problems and what should have been done to keep with industry standards. He took his time to inspect the work that had been done and also took photos of all issues he found. He was able to give us advice on what we needed to do to protect ourselves and advised that we read through laws and procedures relevant to our project and issues we are facing (he provided information sheets with resources). I feel Andy is very knowledgeable, honest, and takes his job seriously, and I would be happy to work with him in the future.
My account rep was great to work with. He was clearly very knowledgeable and took the time to explain everything and answer all my questions.
I'm very happy and satisfied with my new roof. My old roof was in really bad shape. Andy Wilde was very professional and extremely helpful. He answered all my questions and addressed my apprehension. I explained to him that I had a maximum budget that could not exceed. He worked with me until we could get the cost to where I could manage it. He was great and I was very pleased. The construction crew were outstanding, they were on time, they protected my flowerbeds, yard and driveway. Once done, they cleaned up everything. Hector, was the project manager and he was on site several times to make sure the project was processing as it should and to answer any questions I had as the crew did the installation. All in all, they did a great job and I'm very pleased. I highly recommend them. Job well done.P!
We had a wonderful experience working with Big Fish. After getting several bids from contractors, we decided to go with Big Fish for new windows for our home. Communication throughout the experience was excellent. Paul did a great job explaining the timing and steps involved. The crew at our home were always professional and friendly. We would highly recommend Big Fish for any of your home or window projects.- The Donovan Family
Andy did a great job providing me with a quote for the exterior repairs at my house. He was very friendly and the complete opposite of the pushy salesman. I would recommend working with Andy based on this experience.
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Fix The Real Problem, Not Just The Window.

Most homeowners overpay because no one diagnosed the real problem first. Let’s fix that.