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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

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

Mashantucket, CT's Skilled Roofing & Gutter Contractor

Happy Customers Surrounding Mashantucket, CT
Testimonials
Reviews

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Experienced roofing contractor & gutter company in Mashantucket, CT

We have been serving Connecticut residents since 1998 and are committed to bringing you peace of mind. We are New London 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 Mashantucket, 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 Mashantucket, 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 Mashantucket 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 Mashantucket, 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 Mashantucket, 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 Mashantucket 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!