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Products & Services

Roofing Services
Roof Replacement
Skylights & Sun Tunnels
Roof Repair
Roof Inspections

Commercial Roofing

Types of Roofing
Asphalt Shingles
Asphalt & Fiberglass Shingles
Wood Shingles & Shakes
Metal Roofing
Energy-Efficient Shingles

Siding Services
Siding Installation
Siding Replacement
Vinyl Siding Installation
Vinyl Siding Replacement

Covered Gutters & Downspouts
Gutter Leaf Protection
Seamless Gutters
Gutter Installations
Gutter Replacements
Gutter Guards & Leaf Covers
Aluminum Gutters

Replacement Windows & Doors
Vinyl Doors
Aluminum Doors
Steel Doors
Fiberglass Doors
Bay & Bow Windows
Vinyl Windows
Double-Hung Windows
Casement Windows
Entry Doors

Attic Insulation
Cellulose Insulation
Rigid Foam Insulation
Radiant Barrier
Duct Sealing
Duct Insulation
Duct Cleaning
Ice Damming
Attic Mold Treatment
Attic Air Sealing

Before and After Pictures from Windsor
Roof Replacement in Windsor, CT

Roof Replacement in Windsor, CT

Before After
Roof Replacement in Windsor, CT Roof Replacement in Windsor, CT

This roof in Windsor had not yet reached 20 years when it began leaking. Water was coming into the house from the edge of the roof. The old roof was replaced with Owens Corning Duration in the color Estate Gray!

Roof Replacement in Windsor, CT

Roof Replacement in Windsor, CT

Before After
Roof Replacement in Windsor, CT Roof Replacement in Windsor, CT

At this ranch home located in Windsor, CT we completely tore off the existing single-tabbed shingles and replaced them with Owens Corning Duration shingles in the color Onyx Black. We removed and replaced any damaged plywood decking and installed new aluminum drip edge along the entire outside perimeter of the roof. To give the attic of this home great ventilation we put in new Ventsure Ridge Vents to provide top-notch consistent attic ventilation. Ventilation is one of the most important parts of keeping a home moisture and mold free. in addition to the new roof, we also put in new 5" aluminum seamless gutters and downspouts to allow water to properly run off the roof. With a new roof and attic ventilation, this homeowner can now be worry-free come this winter!

Windsor, CT Full Roof Replacement

Windsor, CT Full Roof Replacement

Before After
Windsor, CT Full Roof Replacement Windsor, CT Full Roof Replacement

This multi-family Victorian style home located in Windsor, CT was in desperate need of a new roofing system. This home had old style single tabbed shingles which are known for causing leaks. We completely stripped the old roof and removed and replaced 5 sheets of plywood decking. On top of the new plywood decking, we laid down Owens Corning Ice & Water Shield to protect the home from outside moisture. For shingles, we used Owens Corning Duration TruDefintion Shingles in the color Desert Tan. Attic Ventilation is especially important when it comes to the well-being of your home. We installed a VentSure Ridge Vent to provide top-notch consistent attic ventilation.

Company Awards
$2,900 Klingberg Family Centers Donation
For every roof installed during this initiative, we have made a donation to support programs for children affected by trauma.... [Read more]
Voted #1 Contractor in Connecticut
Klaus Larsen was voted 1st in Best of Hartford Magazine in the Home Repair and Remodeling category. Over 20,000 people... [Read more]
VFW Appreciation for Veterans Outreach
The Veterans of Foreign Wars Organization recognized Klaus Larsen Roofing for their continuous veterans outreach and dedication in honoring those... [Read more]
More Awards

The Best Roofing Contractor Serving Windsor, CT

Very positive experience!...
Happy Customers Surrounding Windsor, CT
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Reviews From Windsor
Testimonials From Windsor
They bend over backwards to make everything right.
Testimonial by Joanne Y. from Windsor, CT

Experienced roofing contractor & gutter company in Windsor, CT

We have been serving Connecticut residents since 1998 and are committed to bringing you peace of mind. We are Hartford County's trusted roofer and gutter installation professionals. We always provide the best quality materials and service. For our gutter and roofing contractors, no project is too big or too small. We take great pride in our work, and will always treat you and your home with respect. Our experts have the tools and experience to give your home the roof, covered gutters, gutter leaf protection, attic insulation, and siding it deserves. We offer roof repairs, roof replacements, seamless gutters, leaf covers, replacement windows, new entry doors, attic air sealing, and siding services and will work hard to ensure that we exceed your expectations.

Whether repairing missing shingles on the roof, fixing roof wood rot, replacing clogged gutters, installing clog-proof gutter guards, updating outdated siding, adding cellulose insulation in the attic, or doing a roof replacement, we guarantee that your home will be safer and more beautiful than ever before. With over 20 years of experience, we are fully qualified to deal with any of your roofing, siding, gutter installation, or gutter leaf guard needs.

Here at Klaus Larsen LLC, your satisfaction is our priority, and we want to make the roof repair, roof replacement, new window installation, entry door replacement, siding, attic insulation, and gutter installation process as simple and pleasant as possible for you. To meet this goal, we offer free, no-obligation estimates for any of our services. Contact us today to find out how we can serve you!

Our roofing & gutter installation services in Windsor, CT

Whether you need a complete roof replacement, roof leak repairs, new seamless gutters, clog-proof gutter leaf guards, or updated siding, we offer these solutions and more!

  • Roof Replacement
  • New Roof Installation
  • Roof Repair
  • Snow Removal
  • Roof Inspection
  • Asphalt Shingles
  • Vinyl siding
  • Siding Replacement
  • Commercial Roofing
  • Siding Installation
  • Metal Roofing
  • Skylight Installation
  • Covered Gutter Installation
  • Gutter Protection System
  • Gutter Guards & Gutter Leaf Protection
  • Downspout & Downspout Extensions
  • And More!

Expert roof repairs & roof replacement in Windsor, CT

Does your home have roof leaks, wood rot, missing shingles, or storm damage? Or maybe it is time for you to get a new roof altogether. Roofing problems can become more severe and call for costlier, more complicated repairs the longer you wait to resolve them. These issues can also spread to other areas of the home, causing water intrusion, pest infestations, poor energy efficiency, interior leaks, and more. Whatever the case may be, our expert roofing contractors are the best in the business and will make sure that you get roof repairs or a roof replacement that you can be proud of.

So whether your home has roof storm damage, roof leaks, broken shingles, or has a roof that has reached the end of its lifespan, have one of our experts perform an on-site roof inspection! We can examine the system at every level and recommend solutions based on your home's unique needs. We also offer several different roofing materials:

  • Asphalt shingles
  • Wood shingles
  • Energy-efficient shingles
  • Metal roofing

Our roof repairs and roof replacements are engineered to last. And our lifetime roof replacement warranty gives you even more peace of mind!  We also work with insurance adjusters to ensure that you get the highest quality work for the lowest possible cost when you claim a roof replacement. 

In addition to roof repairs and roof replacements, we also install skylights and sun tunnels to bring even more light to your home and value to your property! Transform your Windsor home with any of our roof repair, roof replacement, and roof cleaning services today. Call 1-860-563-7661 or click below to schedule a free estimate!

Protect your home with seamless gutter installation

Does your home have leaky, clogged gutters? While a water management system is necessary to protect your property from structural damage, basement flooding and leaking, water intrusion, siding issues, and more, leaky and clogged gutters can cause more harm than good. That's because runoff becomes obstructed and spills over. But there is no reason to worry. Klaus Larsen LLC is the expert in gutter protection systems by Gutter Shutter, including seamless gutters, gutter guards, downspouts, and downspout extensions.

No matter what gutter problem you may have, including sagging gutters, leaky gutters, or clogged gutters, our trusted professionals have the resources and knowledge to give you the gutter protection system you need. Klaus Larsen LLC provides services like:

  • Gutter Protection System
  • Covered Gutter installation
  • Gutter guards & Gutter Covers
  • Downspouts & Downspout Extensions

If you have overflowing or clogged gutters or gutters that are old and in need of repair or replacement, you've come to the right place! We offer a variety of colors and materials to fit your style and budget and are ready to take on any project. Why wait when your house can be transformed and protected by new gutters today?

Replacement windows & doors

Does your house have uncomfortable drafts, high energy bills, or ugly, worn-looking windows and doors? Let Klaus Larsen LLC help with durable and beautiful replacement windows and doors! New doors and replacement windows improve the home's comfort and energy efficiency. Plus, they also enhance its overall curb appeal and property value.

Replacement windows & doors we offer:

  • Vinyl doors
  • Aluminum doors
  • Steel doors
  • Fiberglass doors
  • Bay & bow windows
  • Vinyl windows
  • Double-hung windows
  • Casement windows
  • Entry doors
  • And more!

Get a free estimate on a replacement doors and windows project today. Klaus Larsen LLC serves Windsor, CT and nearby areas.

Energy-efficient attic insulation & air sealing

If your attic has faulty insulation, poor air sealing, and energy efficiency issues, this can lead to whole-house problems, including roof damage, high energy bills, mold growth, drafts, and uncomfortable temperatures. But there is no reason to worry. Klaus Larsen LLC offers reliable attic insulation and air-sealing solutions! And unlike other roofers, we can diagnose roofing issues on the surface and inside the attic. So, you can rest assured that we fortify every layer of your roofing system.

Our attic insulation services include:

  • Blown cellulose insulation
  • Rigid foam insulation
  • Attic encapsulation
  • Radiant barriers
  • Air sealing
  • Duct insulation
  • And more!

Schedule a free attic insulation estimate to get started. We offer attic insulation services, including radiant barriers, cellulose insulation, rigid foam insulation, and duct insulation, in Windsor, CT and nearby.

Get your free roof replacement & roof repair quote today!

Klaus Larsen LLC is the specialist that you can trust with your roof repair, roof replacement, or gutter installation project. Whether you need to fix roof wood rot, update an old roof, replace clogged gutters, or install new vinyl siding, we are ready and able to take on any challenge and we guarantee that we will blow you away! We are proud to serve the Windsor area and want to give you a free estimate for any of our services. Call 1-860-563-7661 or click below to get started!

Case Studies From Windsor
Roof
The existing roof of the garage in Windsor, CT consisted of two layers of asphalt over cedar. There was no plywood decking and it was beginning to...
Job Stories From Windsor, CT
Roof Replacement in Windsor, CT

Dave, a new homeowner in Windsor, CT, purchased his property in July and quickly discovered the challenges of an aging, cracked flat roof. Leaks had started to seep into the home, threatening to compromise the inside. Searching for a lasting solution and wanting to improve his property’s overall condition, Dave contacted us at Klaus Larsen Roofing to discuss his options for a full flat roof replacement. We provided him with a free inspection and a detailed quote, which gave him the information he needed to move forward confidently with the project. Dave was so satisfied with the process that he decided to also have us install a new gutter system to further protect his home.

In the photos documenting this project, you’ll see the entire transformation—from before, during, to after the roof replacement. The original white, cracked roof had been in place for 25 years and was clearly due for retirement. Our team carefully removed this old roofing material, working down to the wooden plywood decking. We replaced any boards that showed signs of rot or damage, ensuring a solid foundation. Afterward, our crew applied high-quality protective seals, designed to prevent future leaks and extend the life of the roof.

In the final images, the difference is clear—the new flat roof is beautifully installed, securely sealed, and ready to withstand the elements. Thanks to our expert team and Dave’s commitment to quality upgrades, his home is now equipped with a roof that not only looks great but also offers superior protection.

Roof Replacement in Windsor, CT - Photo 1Roof Replacement in Windsor, CT - Photo 2Roof Replacement in Windsor, CT - Photo 3Roof Replacement in Windsor, CT - Photo 4Roof Replacement in Windsor, CT - Photo 5Roof Replacement in Windsor, CT - Photo 6Roof Replacement in Windsor, CT - Photo 7Roof Replacement in Windsor, CT - Photo 8
Roof Replacement in Windsor, CT

Facing the aftermath of a January storm in Windsor, CT, this home encountered a tough challenge: water leaked through a light fixture in the ceiling. Although no additional water leaked in, spots began to appear on the ceiling and water was found on the floor of the furnace room. Knowing to turn to Klaus Larsen Roofing for assistance, our expertise and commitment to quality ensured the home's restoration with a new roof replacement.

 

The first step in addressing water damage is to inspect the attic. The plywood ceiling showed clear signs of water damage, with dark streaks throughout the boards. During the roof replacement process, the old shingles are stripped off to further examine the plywood. For this home, the water damage was extensive, requiring the replacement of all decking. This provided a new and secure base for the roofing, ensuring the home's longevity.

 

Next, all plywood pieces are taped together with SealoronXT Deck Tape. This tape serves as the initial defense against water infiltration through the wooden cracks. Following this step, the Ice & Water SealoronXT membrane is applied. This high-performance barrier is designed to provide optimal protection against the harshest weather conditions. It is installed along the roofing edges with a width of six feet, ensuring a leak-free home. The final layer applied is the Velora Roof Underlayment. This membrane covers the rest of the plywood decking, offering a third layer of protection against water, ice, wind, and other weather-related damage.

 

With the installation of new IKO Dynasty Architectural Shingles in the color Atlantic Blue, this home disaster was effectively remedied.

 

Put A Klaus On Your House! 

Roof Replacement in Windsor, CT - Photo 1Roof Replacement in Windsor, CT - Photo 2Roof Replacement in Windsor, CT - Photo 3Roof Replacement in Windsor, CT - Photo 4Roof Replacement in Windsor, CT - Photo 5Roof Replacement in Windsor, CT - Photo 6Roof Replacement in Windsor, CT - Photo 7Roof Replacement in Windsor, CT - Photo 8
Gutter Shutter installation in Windsor, CT

This homeowner in Windsor, CT now has the peace of mind from their new Gutter Shutter system! Our Gutter Shutter system is guaranteed to NEVER clog, sag or pull away. What makes this system so special? It's the most durable and reliable system out there. The Gutter Shutter system features an innovative design and stronger materials than any other gutter system on the market so you'll never have to clean your gutters again. Gutter Shutter's exclusive high back design, thicker aluminum, and certified GutterStud brackets also ensure your gutters will never sag, void your shingle warranty, or pull away from your home. This system's fully-enclosed design keeps leaves, debris, and pine needles out so your gutters so it will never clogguaranteed! The gutters feature a rolled hood design that helps keep out this unwanted debris while still allowing water to flow through.

 

With Gutter Shutter's lifetime guarantees and our high-quality product, it has become the trusted service for all customers looking for a premium gutter guard system. You can even customize your Gutter Shutter system to match the exterior of your home.

 

Interested in having Klaus Larsen Roofing install a Gutter Shutter system onto your home? Give us a call for a free estimate. 

Gutter Shutter installation in Windsor, CT - Photo 1
Roof Replacement in Windsor, CT

A home in Windsor, CT was in need of a full roof replacement due to severe storm damage. The homeowners were able to put in an insurance claim. There was damaged decking that was replaced during the install. After the decking synthetic underlayment and ice & water was laid down to further protect the roof from leaking. The chimney also received new flashing. The crew removed the existing vent pipe boot and replaced with a Perma Boot. The Perma Boot will also help to prevent leaking. The homeowners chose IKO Dynasty shingles to complete the roof. 

Roof Replacement in Windsor, CT

An owner of a home in Windsor, CT had a leaking roof. Although the roof was relatively new, water was pouring down one of the walls. When we came out to provide an estimate, we recommended the entire roof be torn off and replaced. Our crews started early in the morning and tore off one layer of old shingles. Next, they installed nine feet of Ice & Water barrier on the roof. Ice & Water was also applied around the chimney and bathroom vents. Above the Ice & Water, they installed ProArmor Synthetic Underlayment. Also, the flashing around the chimney was replaced with new lead chimney flashing. Lastly, the new Owens Corning Duration Shingles were installed with our Platinum Contractor 50-year full warranty (Color: Slatestone Gray).

Work Requests From Windsor, CT
Project Location: Windsor, CT
New roof
Project Location: Windsor, CT
Complete replacement of upper roof area, existing 2 lays of roofing. work around sky lights and re-Flash the 2 Chimneys.
Project Location: Windsor, CT
Gutter replacement due to damage from snow & ice that occurred this past winter.
Project Location: Windsor, CT
2 story with 2 car garage $ sunroom. 2 skylights to replace.
Project Location: Windsor, CT
House is in need of a new roof.
Project Location: Windsor, CT
I have some damage from the recent storms. At least a few pieces of broken siding and some indentations on the corners of the roof.
Project Location: Windsor, CT
Looking for estimate on new gutters, if needed, and leaf toppers. Thank you.
Project Location: Windsor, CT
Need a quote on a new roof
Project Location: Windsor, CT
Need an estimate for roof repair. Thanks.
Project Location: Windsor, CT
We had some wind damage from the wind storm on Saturday, plus we have been thinking our roof is probably about due for replacement.
Project Location: Windsor, CT
I had a leak coming from my roof. I'm not sure if my roof can repaired or if I need a new one.
Project Location: Windsor, CT
Roof in need of replacing
Project Location: Windsor, CT
We have a roof leak and need an estimate for repair. Also interested in snow removal.
Project Location: Windsor, CT
Need new roof, gutters and siding
Project Location: Windsor, CT
Need shingles put on a new built shed - 14 x 24
Project Location: Windsor, CT
Need new roof
Project Location: Windsor, CT
Insurance company wants roof repaired or replaced.
Project Location: Windsor, CT
Shingles presently on roof about 20 years old, no leaks but figure it was time to redo roof for the next 20+years. currently in the planning and budgeting stage, looking for estimates from different companies
Project Location: Windsor, CT
We need to have our asphalt roof replaced. We recently learned that we have 3 layers on our roof.
Project Location: Windsor, CT
I am in need of repair to my roof. There is a leak from the flashing around my chimney. A stain is visible on the ceiling in my living room and I would like the leak repaired before the damage gets worse. I would do the repair myself, but I am getting too old to get on my roof. The house is a raised ranch, so there is easy access to the roof. The roof is older and will need to be replaced in the near future, but for now I would like to get the flashing repaired. Please contact me.