Ganser Company

Ganser Company

Ganser Company

Replacement Windows

Madison, WI

4.7 · 53 reviews
4.7 · 53 reviews

About Ganser Company


Madison, WI


Replacement Windows
Additional Services: Bathroom Remodeling · Roofing & Decks · Siding · Windows & Doors

Business Hours

Mon-Wed, Fri – 8am-5pm Thu – 8am-8pm Sat – 9am-2pm Sun – Closed

Payment Options

Cash, Check, Monthly Financing

Years in Business


About This Business

Ganser Company has been a locally-owned and operated family business proudly serving the Greater Dane County area since 1939. Serving Madison, Monona, McFarland, Verona, Fitchburg, Middleton, Sun Prairie, and surrounding areas for all roofing, siding, window, and repair needs. Ganser Company will bring your home's original beauty back with timeless products, new innovation, and hands-on displays designed to let your imagination run wild!

53 Reviews for
Ganser Company

What people say about Ganser Company
Professional · 9
Excellent · 7
Quality · 7
Friendly · 5
Prompt · 4
· Show All
4.7 star average rating (53 reviews)

Reviews you can trust. All reviews from real customers.
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I've had Ganser Co do a lot of work at my house, windows, patio door, roof, roof vents, and I've been very happy with all their work. The staff have been friendly and helpful and the work is first quality.
Ganser Co sent out a very capable worker for a very reasonable price. They do a great job!
Ganser replaced my 2 flat roofs in July 2016. All was done very well, cleanup was excellent, communication was excellent, and all done in a timely manner. The only fault was giving a final bill on first day of work indicating it was due in 10 days when work took 7 days.
Within timelines, budget. We're polite and cleaned up daily after work.
This is out third experience with the Ganser Company. We divided our window replacement into chunks (windows are not cheap). Each time the Ganser Company has been professional, and has exceeded my expectations for service and quality. We are even getting the same installer this time who likes my dogs. They did the work on time and left the worksite spotless.
Prompt service and friendly staff. They were great to work with.
We love the replacement windows we purchased from Ganser Co. They are beautiful and very easy to operate. We are looking forward to completing "phase 3" of our replacement project in a few weeks.
I have worked with Ganser for many years here in Madison. Their work has always been top notch, they stick to their schedules and keep me informed regarding project-related issues.
I own a historic structure on the east side of Madison (built in 1885 and on the National Register of Hysterical [sic] places). Ganser Co. has an excellent understanding of the issues relating to working of structures of this age and classification and has made many excellent suggestions regarding repairs and upkeep that have saved me many dollars.
I am so happy with my windows that I now will be having Ganser install a new roof. They were the only company that took time to explain why they would do a process a certain way.
We had a great experience with Ganser. They treated us honestly and fairly; they were very upfront about everything and we sincerely appreciated that!
Marc was excellent in helping us pick out the right products for our bathroom. Gregg was great at explaining what options to go with during installation. Great people to work with.
We hired Ganser to replace the siding on our house and replace several windows. Everything went great. They always called to let us know when they'd be working, and they arrived when they said they would, and got all the work done on time. No delays. No surprise extra costs. They cleaned up everything afterwards - every nail & bit of dust. And the job foreman came back after the job was done to make sure everything was done to our satisfaction. Any little touch-ups were taken care of without our having to nag them. Great communication and great workmanship. We would hire them again without hesitation.
Ganser has done several projects for us over the past 5 years on two different homes. There work has been professional, prompt and exceeded our expectations.
Friendly, Fast and Affordable. I completely recommend Ganser Company for any job; big or small. You won't be disappointed.
Madison, WI
We had a patio door and two bedroom windows replaced by Ganser, and we were thrilled with the results. The door and windows are top-quality and working with the Ganser company was a joy as the entire team was very professional, dependable, and knowledgeable. We will definitely use Ganser for future house projects!.
Rio, WI
We needed a flat roof replaced. We chose Ganser in part because we liked their product but more so because of the thoroughness of the estimate and how they walked us through the process. They gave us options and didn't pressure us to get more work done than we needed. We plan on using Ganser for future home improvement projects...
We're very, very pleased with the Marvin Infinity windows in all-ultrex. Room temperatures are more stable throughout the year. Everwood finish blends with our golden oak trim, beautifully. Installation was superlative and efficient....
Your guys are outside working right now. It is so difficult to find a contractor to come out to the country rural Dane county, to get some work done. 20 years ago your company shingled my newly built home and now your company is repairing and improving the siding on my home. Later in 2016 I intend to call Joe to give me a price for replacing 2 picture windows. Thanks for helping me out. I am grateful. Dennis Orr...
I am MORE than pleased with my replacement windows (5) from Ganser as well as a new patio sliding door. The work crew was terrific and you wouldn't even know they were here. I love NOT having any condensation, and I know the rooms are warmer.

I most certainly would and do already recommend them.

Fran Tierney...
Ganser Company did an awesome job replacing the roof on our unique flat roof house. They were meticulous and very attentive to details. Great job!...
We had a small project but Ganser gave it the attention it needed with a short turn-around time. We were happy and satisfied with their work and the friendliness of their staff....
Our windows (14) were replaced the week of Christmas. Five of Gansers crew arrived at 7:30 and had the entire job completed by 3:30 the same day. They covered the stairs and added drop cloths under all the windows and cleaned up everything when they were done. We were very impressed with their workmanship and friendliness....
Ganser was about substantially more expensive than anyone else. We were seeking quality work and chose Ganser based on reputation. However, we were given numerous broken promises, poor communication and lousy customer service.

We were told our project would take 4-6 weeks,. Ganser took 7 months for a small section of roof and 4 windows.

Once the tear down was complete the work just stopped and we continually struggled to get a crew back onsite to complete the work. I would spend 2-3 weeks calling their office and leaving messages for our Ganser project manager who never picked up or returned calls.

Once a crew did arrive, they would tinker for a day, then promise to return in a week or two. However, two weeks would pass and nobody would show. I would then spend another 2-3 weeks of leaving messages and calling the front office again. This cycle repeated itself for the duration (7 months).

After about 5 cycles of this, I went in and asked to speak with an owner. I was told I had to work with my project manager and have a nice day.

Additionally the solution wasn't what we were sold on. Ganser sold us a commercial membrane solution where all parts are "welded" together so as to create a uniform bond. However, Ganser couldn't get the welder technology to work so they glued everything instead. We were told that this "would be fine." This was a real disappointment because it was the one feature that sold us on this very expensive solution to begin with.

In the end, the project was finally completed and the craftsmanship was just OK. We did call Ganser back a couple of times because some of the glued pieces didn't hold; surprise.

We were not upset that our project took 7 months as we were pursuing quality. It was the total lack of communication and poor follow through on promises that made us feel like we were ripped off.

We cannot recommend Ganser....
We are very happy with the windows and service. The installers were professional, friendly and conscientious....
Very happy with the work done by Ganser Company. I like the 'hands on' approach they take on the daily operation of the company. Work was completed on time, on budget and clean. I would recommend Ganser Company for any home improvement work needed. Thank you!...
Ganser Company replaced my roof and gutters and I am very happy with the job they did and have recommended them to my friends who have used Ganser. Ganser has not replaced my windows, but if I needed windows replaced, I would give them a call. Brad Witt...
We have had Ganser for many home improvements. Yes, they do a great job. Last project was our walk in shower-wonderful and we love it. Thanks, Gansers!!...
Ganser did our new roof several years ago. It is a large roof and rather complicated and we chose expensive, solar-reflective shingles. They did a great job even tho the rates were a bit high. The roof was destroyed in a hail storm a few months later. Our insurance (Liberty Mutual) fought paying Ganser's replacement costs. Ganser's staff worked with us for months hasseling with that insurance company but finally we all had to give in and hire a cheaper roofer. That roofer has now gone out of business and we have no recourse if there are problems. A long-standing company like Ganser would be there for us....
we love the new windows! Quality workmanship and courteous service!...
Ganser did my roof, siding & replaced front porch. House looks great....
Ganser was hired to clean the leaves from our gutters. The service was performed on that scheduled time at the price quoted. The office and service staff was both friendly and professional....
We have always received prompt responses to our needs in maintaining our home in good condition. The people who come to do the work are always helpful, professional, and courteous. A pleasure to do business with the Ganser Co.

My father had Ganser put a new roof on his house in the early 1980s.

Janet Sabatke...
My husband was very pleased with the efficiency and cleanliness of the crew that installed our new patio door. He's a hard guy to please, so great job, Ganser....
UPDATED on 12/21/2015 (5 out of 5 stars)
I am please recommend the Ganser Company. They helped me with my roof, which had become infested with carpenter ants and required rebuilding the soffit without disturbing the concealed gutter. It was a very complicated job. They did everything they needed to and it came out great....
ORIGINAL REVIEW on 12/21/2015 (5 out of 5 stars)
The cans are company helped me with eliminating carpenter ants from my roof. It was a very complicated job we have concealed gutters and it was important not to disturb the gutters they rebuilt the whole leave when things weren't exactly right they redid them. I have the highest regard for the cancer company and I'm pleased to recommend them to you for your housework
Marvin windows are the best!----installation was done to complete satisfaction....
Customer service was excellent.No pressure. Knowledgeable. Tree had damaged part of the garage. Estimate given was good and affordable. Damage to the garage was repaired twice. (another part of the tree came down and hit garage). Repairs were done fast. Was happy with the outcome. The siding color had been discontinued. They were able to find the siding and I was given 3 additional pieces to have on hand if ever needed. Even got a follow up call. Had additional work done on the house - replaced the gutters, downspouts and had mesh placed on the gutters. No more leaves. Definitely would recommend Ganser....
I have an 85 year old brick bungalow, with the original windows. Needless to say the 85 year old storms and screens had seen better days and were sorely in need of replacement. I wanted to preserve the character and architectural integrity of the home (i.e. I didn't want replacement windows or combination storms and screens). Tim respected my choice - with no pressure at all- and helped devise a plan that involved custom made wood storms and screens. That was easier said than done because nothing in my house is prefab or standard size. But the final result is fabulous. All at a very reasonable price....
We had an excellent experience with Ganser. We had our gutters redone with them, and they really took the time to help understand the problems we were having with our old gutters and what the best way to fix that might be. They even came and did an adjustment to the original job to make sure it was working perfectly. We plan to use Ganser again when we need work done in the future. I would highly recommend them!...
Really felt like Ganser had a personal touch that was missing from other area contractors. We felt more like a valued customer and not another blank check. Highly recommend them!...
Ganser recently replaced 7 of our windows. One was a large bay. All of the work exceeded our expectations. The trim work (inside and out) was particularly well done. Everything was completed in a single day and nothing was left for us to clean up after the installers left. Cost wise, Ganser's prices are competitive and they were able to assist us with financing. If you are in the market for a high end quality window, I would recommend Ganser.

Mike Fowler...