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Bad Signs for Window Installation

replacement windows in Seattle, WA

New windows should be exciting. They should make your home more comfortable, protect against the elements, and insulate the home from heat transfer. But if replacement windows in Seattle, WA don’t get installed correctly they will end up doing none of those things. Poorly installed windows can result in several different problems and not all of them will appear right away. That is why it is so important to make sure your windows get placed by trained professionals. Here are just a few of the bad signs to watch out for:

1. Odd Noises

Do your new windows creak, squeak, or crack when you open and close them? These can be some of the first signs of a poor installation. The sounds often mean a window is either fitted too tight or too loose inside the frame. This is bad news for the hardware, hinges, and mechanical systems on the windows. These parts will likely wear out much faster, and before you know it you could be replacing your windows yet again. So if you notice any odd noises with your new windows, it is important to contact the installers right away and have them come out to fix the issues.

2. Sloppy Caulk Applications

Caulk’s application may not seem like a big deal. The lines should be clean and even, but uneven caulk is something you can easily peel away and reapply yourself. That isn’t what really matters. The main concern is if the installation crew was in a rush and didn’t take time to apply the caulk properly, what else did they neglect in the installation process? A small problem with the caulk might be just the beginning when it comes to issues with these windows.

3. Noticeable Gaps between the Frame and Sill

This should be an immediate red flag. The new windows should sit tight and level inside the frame. Any gaps mean the installers didn’t measure and fit the new window properly. If you can see light coming through the gaps, that should be a major warning. But sometimes gaps are not easy to see. That said, you will most likely be able to feel them.

replacement windows Seattle, WA

4. Drafts and Leaks

New windows should not leak. Unfortunately, drafts and leaks might only appear during extreme weather conditions and it might take several months before you even notice a problem. But there is one easy way to test for drafts. Simply close all the external windows and doors in the home and then run the exhaust fans. This will create some negative pressure inside and start pulling air through any of the gaps. To test the windows, simply pass a stick of incense or a candle around the frame. If the flame or smoke pulls inward, you likely have a window leak the installers need to fix.

5. Difficult Window Operation

Windows, especially new windows, should open and close with little effort. And the smooth operation is more than a convenience. Egress windows need to open and close so they can function as an exit in the event of an emergency. If new windows do not open and close, and you paid for functional windows, then you need to call the installers back and get the problem fixed right away.

Call our experts for help with replacement windows in Seattle, WA, and professional installers who get the job done right. With over 30 years of experience, your satisfaction is guaranteed.

See What Your Neighbors Are Saying

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4.9
Based on 184 reviews
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rachel mf profile picture
rachel mf
17:04 06 Mar 26
I cannot praise Signature highly enough. We hired them in 2012 to replace all of our windows and two sliding doors - the work was excellent and we love our Simonton windows. We just hired them again to rebuild our two-story entryway and install a Perva door and new windows. From the very thorough conversations with our salesperson, Vitaliy, to the scheduling with the office staff, to the actual installation - everything is as professional and high quality as you can find. We gathered quotes from three other companies but none of them went to any effort to truly lay out how the job would be accomplished. Photos show the old & new interior side, and the new exterior. Still needs painting but we're so happy!
G Zenkin profile picture
G Zenkin
04:19 04 Mar 26
After an extensive vetting process and comparing multiple options, I confidently chose Signature Windows & Doors for my home, and they absolutely delivered. The Marvin brand windows they installed are beautiful and of incredibly high quality—the craftsmanship speaks for itself. Beyond the great product, the installation process was truly exceptional. The crew was professional, precise, and made the entire project seamless from start to finish. I highly recommend them to anyone looking for top-tier windows and flawless execution. I had a fantastic experience with Signature Windows & Doors.
Michele V profile picture
Michele V
00:13 26 Feb 26
We called our project "The Window From Hell." It was a HUGE trapezoid window up high in a 2-story living room, and it needed to be replaced after its seal failed. I got bids, and was the most impressed with Danny L at Signature Windows. We had a tight deadline because the home was going on the market and access to the window, especially in the rain, was really challenging. Meeting the deadline, and the safety of the installers, were non-negotiable. Danny came out the very next day to measure the Window From Hell and, not only did he give me the best price, but his company was the only one that had all the scaffolding equipment readily available at no extra charge. The window arrived sooner than expected, and installation was quickly scheduled to meet the deadline. Then we hit a snag: some epic rain made the cedar roof too slippery for safe conditions. Brent and his crew of expert (and very brave) installers rigged up a safe way to haul this brand-new Mother of ALL Windows up to the second floor and install it using very long ladders, secure scaffolding, and harnesses. I think we had 4 or 5 installers for this job. It took all day to get the old Window From Hell out and the new Mother of All Windows installed. But what a job! Perfect caulk lines, perfect cleaning of the glass, perfect clean-up of the job site, indoors and out. Job done ON TIME, SAFELY, and at an excellent price. If Signature can handle my Window From Hell, I am very confident they can install ordinary double-hung windows that exceed your expectations for quality, price, timeliness, and workmanship. I highly recommend Signature Windows.
Robert Horn profile picture
Robert Horn
01:35 19 Feb 26
I highly recommend Signature. Windows look great, we are really happy with our installers too, they picked up everything each day and were real craftsmen, they took pride in the work they were doing for us.
Leanne Bough profile picture
Leanne Bough
23:41 12 Feb 26
Signature windows was wonderful to work with from the sale through the installation.
Dana B profile picture
Dana B
18:02 25 Nov 25
Everything from the initial consultation, regular updates on my order and installation was wonderful. The most recent installation was the third time I've had Signature replace old windows and I've been so pleased every time. They took the time to explain which windows needed replacement and provided options without any sales pressure. It's so nice to work with a company that believes in great customer service and offers quality products.
Amy Dahlin profile picture
Amy Dahlin
16:47 23 Oct 25
We have chosen to work with Danny and his team at Signature Window & Door twice now. We love the quality of the windows and the help they provide in the design process all the way to the finished installation. We put in a 15' folding door at our last home. It was a showstopper! Highly recommend them to bring your home back to life with beautiful windows that are built to last!
Pam Moser profile picture
Pam Moser
22:08 18 Feb 25
We bought a house that needed all new windows & sliding glass doors replaced. So we did our research and visited window replacement companies to see & touch different window & screen types. We decided to work with Signature Window primarily based on customer service as we received during the research & planning process with Office personnel (friendly, helpful, responsive) & Sales team (product knowledge, design assistance, open & honest).

1st Project (Aug 24) - 8 windows & 1 Sliding Door
2nd Project (Feb 25) - 1 ceiling to floor large window & 2 windows
Product of windows & door was excellent - we are extremely happy.

The customer service experience was superb. We worked with Sales Rep, Scheduler, Window Measuring Rep & Installers - all were friendly, open & honest, communicative, assisted with design & product knowledgeable. Installers did an awesome job with project cleanliness & kept busy all day long.

We are extremely satisfied with our overall experience with window replacement with Signature Windows 🥰
happy couple holding hands outside home
happy couple holding hands outside home
Our Reviews See What Your Neighbors Are Saying

From the beginning to the end of this project, the Customer Care team was top-notch. They easily accommodated my difficult schedule, the requirements of the historical building I live in, and were super responsive to all my questions. The installation team was flawless. They worked around…

Kelly R.

Kelly R.

Signature always comes through, their products and work is always top notch, yes, they are a premium service but you get what you pay for, and I really enjoy having great doors and windows to my home.

Seth S.

Seth S.

I’m extremely pleased with Signature Windows. From start to finish the whole process has been wonderful. After the windows were shipped they were installed in less than a week (about 20 windows). The crew, Raymond and Walter (and Eric one of the days) was amazing. They…

Mary H.

Mary H.

Working with Signature was a pleasure. The design and product selection process was collaborative and thoughtful. The communication from start to finish was excellent. The installation crew was friendly, efficient, and skilled. We replaced a very old and very oddly installed back door on our house,…

Marc H.

Marc H.

We used this company several years ago to replace the upstairs windows and recently replaced the downstairs ones. Their costumer service is outstanding and the work was done very proffesional. Everyone involved with the project did an excellent job and we are very happy with the…

Valentina M.

Valentina M.

Signature Window & Door Replacement
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