DIY Home Improvement Guides From The Pros
Tackle Your Next Home Project with Confidence
Since 1985, the Thermo-Seal team has helped homeowners protect and improve their homes. Along the way, we've learned that plenty of homeowners like to roll up their sleeves and handle smaller projects themselves. This page is for you. Our step-by-step how-to guides cover common roofing, siding, window, door, and gutter projects. Each one explains the tools and materials you'll need and how to get the job done right. If a project turns out to be more than you bargained for, our team is only a phone call away.
• How-To Guides •
Windows DIY How-To Guides
Drafty, foggy, or sticking windows can make your home less comfortable and raise your energy bills. These guides show you how to reseal and recaulk, fix common window problems, replace screens, and measure accurately for replacement windows.
How to Reseal Windows
Stop drafts and leaks by removing old, cracked sealant and applying a fresh, weathertight seal around your window frames.
how to measure for replacement windows
Take accurate width, height, and depth measurements so your new windows fit right the first time.
how to insulate windows for winter
Keep heat in and cold out with simple fixes like weatherstripping, window film, and draft stoppers.
how to replace a window screen
Replace torn or damaged screen mesh with a few basic tools so fresh air can come in without the bugs.
how to caulk windows
Choose the right caulk and lay a clean, even bead that seals gaps and keeps moisture out.
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Roofing DIY How-To Guides
Your roof takes the worst of the weather, from summer storms to winter ice. These guides walk you through common roof maintenance and repairs, such as replacing damaged shingles, finding the source of a leak, and clearing snow and debris safely. Always put safety first when working at height. For anything beyond a small repair, call in a professional.
how to tarp a roof
Protect your home from further water damage with a secure temporary tarp until permanent repairs can be made.
how to find a roof leak
Track down the source of a leak by checking your attic, flashing, vents, and other common trouble spots.
how to fix a leaking roof
Seal small leaks around shingles, flashing, and vents before water damages your ceilings and walls.
how to remove moss from a roof
Safely clear moss buildup without damaging your shingles, and keep it from coming back.
how to replace missing shingles
Replace blown-off or damaged shingles to restore your roof's protection against wind and rain.
• How-To Guides •
Siding DIY How-To Guides
Siding is your home's first line of defense, and keeping it in good shape pays off in curb appeal and protection. These guides cover cleaning, patching, replacing damaged panels, and sealing gaps so moisture and pests stay out.
how to clean vinyl siding
Wash away dirt, mildew, and stains with the right cleaners and techniques to keep your siding looking like new.
how to paint aluminum siding
Refresh faded aluminum siding with proper cleaning, priming, and painting for a finish that lasts.
how to repair vinyl siding
Fix cracked, loose, or warped panels with a siding removal tool and a few simple steps.
how to measure for siding
Calculate your home's wall area so you order the right amount of siding and trim for your project.
how to patch a hole in vinyl siding
Cover small holes and cracks with a matching patch for a clean, nearly invisible repair.
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Doors DIY How-To Guides
A door that sticks, sags, or lets in a draft is more than an annoyance. It's an energy and security issue. These guides explain how to weatherstrip, adjust hinges, repair frames, and handle other common entry, patio, and storm door fixes.
how to fix a sagging door
Tighten hinges, add longer screws, or shim the frame to get your door hanging level and closing smoothly.
how to install a storm door
Add protection, ventilation, and energy efficiency to your entry with step-by-step installation instructions.
how to adjust door hinges
Realign a door that rubs, won't latch, or has uneven gaps with a few simple hinge adjustments.
how to weatherstrip a door
Seal drafty gaps around your door with the right weatherstripping to cut energy loss and keep out the elements.
how to fix a door that sticks
Find out what's making your door stick, whether it's loose hinges, swelling, or paint buildup, and get it opening freely again.
services we provide
Professional Exterior Remodeling Services
Windows
Enhance your home with energy-efficient windows from Andersen, Pella, and Harvey. Our expert installations improve comfort, reduce energy costs, and add timeless beauty to your living spaces.
Siding
Protect and beautify your home with durable siding solutions. We install fiber cement, vinyl, and wood siding for lasting performance, improved curb appeal, and energy efficiency.
Roofing
Safeguard your home with premium roofing systems. From GAF asphalt shingles to metal and tile roofing, our certified experts deliver strength, durability, and long-term weather protection.
Doors
Upgrade your entryways with stylish, secure doors from Therma-Tru and other leading brands. Our installations enhance curb appeal, improve security, and provide lasting performance for your home.
Gutters
Keep your home protected with seamless gutter systems designed to prevent water damage. Our expert installations ensure durability, efficiency, and reliable protection for your roof and foundation.
Certified. Trusted. Proven.
With Thermo-Seal, you receive expert craftsmanship and trusted credentials. We partner with top manufacturers and hold certifications to provide the best products. As a licensed and insured company, we safeguard your investment.
Our Edge.
Why Choose Thermo-Seal for Your Windows?
Rely on Thermo-Seal to provide a window that’s maintenance free, durable, airtight, and energy efficient. Contact us today for a custom window plan that will bring comfort, beauty, and satisfaction to your family year after year.
Professional Installation
When you hire us for your replacement windows you will be working with a professionally trained and well experienced company. Our installers are fully trained and insured.
Customer Care
Client satisfaction is our top priority. We ensure high-quality, accurate work. You'll never be disappointed! We are highly rated on home improvement review sites and appreciate all the positive feedback!
Andersen Certified Contractor
We have been vetted, trained, and backed by Andersen Windows & Doors, the industry's #1 most trusted and recommended brand of window and doors.
Experience the Thermo-Seal Difference
Reliable Exterior Remodeling in the Tri-State Area
Real Stories, Real Feedback
Our Client Reviews
Aaron and his team were fantastic! Our windows were ready 2 weeks earlier than expected and his team was always on time. They were pleasant to have around, were respectful of our space and cleaned up after themselves. We had a problem with rot in one of our walls and Aaron and his team helped us to fix it as part of the window installation, including finding a great electrician at the last minute. Thanks, Thermo-Seal! We're very pleased.
Rachel R.
I had a very good experience with Thermo Seal. Chose them after interviewing many others bc they're local, communicated efficiently and offered good midrange pricing + lifetime warranty. Aaron was great to work on setting up the contract and and then Fabio and his crew did a fantastic job with the installation. They came early, they finished 5 windows in 4-5 hours, they cleaned up. Fabio even helped me take care of another issue he found on the roof. Highly recommended.
Patryk B.
