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Ways to Prevent Mold Growth on Replacement Windows

replacement windows in Seattle, WA

Black mold is not something you ever want to find in your home because if it continues to accumulate it can be hazardous not only to the structure of your home but also to your health and wellbeing. And did you know that moisture accumulation is common when you get replacement windows in Seattle, WA? This is because old, leaky windows allow the moisture to escape. But new windows feature better seals and insulation, which is great for energy savings but can trap unwanted moisture inside your home. Keep reading to find out if mold is a risk in your home and what you can do to prevent it.

Why Does Mold Form on Windows?

Mold growth is typically the result of prolonged exposure to moisture. And the moisture around your windows usually stems from condensation. Several factors can contribute to condensation. It is normal for condensation to appear after cooking in the kitchen or taking a shower. This type of condensation will disappear on its own with ventilation. But chronic condensation on your windows could be the result of a plumbing leak, humid air getting into the home, or a poorly installed window. And because moisture can drastically deteriorate the structures of the home, it is important to find the root of the problem as soon as possible.

How to Tell if Mold is Growing On your Windows

Moisture damage and mold growth usually start small. This is why it is so important to inspect your new windows at least once a month to check for signs of damage or moisture accumulation. Early signs might include discoloration or soft spots around the window frame. If the moisture is left too long it can lead to darker spots and peeling paint. And in the case of more extreme moisture damage, you will eventually notice sagging drywall or warped walls and floorboards. Hopefully, the damage doesn’t get to this point.

How to Prevent Mold Growth

As with most home maintenance, prevention is key. A few things you can do to prevent water damage and mold growth is to regularly ventilate the home. Open a few of the windows for 10 to 15 minutes every day to help circulate the air the force humid air back outside. You also want to run the exhaust fans any time you cook or shower. This will help lower humidity levels. It is also important to wipe away condensation any time you see it forming on or around the windowsills.

How to Remove Mold from Window Frames

replacement windows in Seattle, WA

With a little know-how, proper protective equipment, and a few tools and cleaning products you can safely remove small amounts of surface mold on your own. But if you are dealing with more than just surface mold it is important to contact mold remediation experts for full removal.

The moisture accumulation you notice when you first get replacement windows in Seattle, WA should dissipate as the house acclimates. During this period it is important to regularly ventilate the home and wipe down the condensation so it does not become a problem. You even might want to invest in a dehumidifier until the problem no longer persists. Find us on the web to stay ahead with our latest releases.

See What Your Neighbors Are Saying

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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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