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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 Willimantic
Gutter Replacement in Willimantic, CT

Gutter Replacement in Willimantic, CT

Before After
Gutter Replacement in Willimantic, CT Gutter Replacement in Willimantic, CT

Out with the old, in with the new! Examine the striking difference as fresh white gutters replace the old, worn brown ones. This gutter replacement gave the home a whole new look, while also giving a permanent solution to clogged and overflowing gutters! Gutter Shutter provides a wide mouth outlet that is 4 times larger, allowing water to move out faster, ensuring no clogs and no sagging.

Victorian Roof Replacement in Willimantic, CT

Victorian Roof Replacement in Willimantic, CT

Before After
Victorian Roof Replacement in Willimantic, CT Victorian Roof Replacement in Willimantic, CT

Installing a full roof on this Victorian house in Willimantic was a great honor and privilege for us. The complex style of architecture along with the turret required a highly proficient roofing company, and we were happy to oblige. All of the plywood needed to be removed and replaced, as part of a complete overhaul. We've worked on residential turrets before, so we were prepared with the experience needed to effectively roof a conical structure in a timely and proficient manner. This job had a remarkable outcome and the home is a lot closer to being fully restored. It is one more piece of Connecticut history that we have both protected and rejuvenated.  

Professional Roof Replacement in Willimantic, CT

Professional Roof Replacement in Willimantic, CT

Before After
Professional Roof Replacement in Willimantic, CT Professional Roof Replacement in Willimantic, CT

Here was a Willimantic Victorian, with two apartments under one roof. Tenants were experiencing some leaking, and the landlord called Klaus Larsen to determine the cause of the problem. We consistently advise staying away from using 3-tab shingles, which lay side by side and are non-dimensional. They typically blur the line between an inexpensive and 'cheap' product. This roof was replaced with Duration architectural shingles, with Mule Hide purpose made flat roofing on the front shed roof deck.  

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

Reliable Roof Repair & Replacement Contractor Serving Willimantic

We're really happy with the service and the follow-up repair that was needed for the siding. We only found a...
Happy Customers Surrounding Willimantic, CT
Testimonials
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Reviews From Willimantic
Testimonials From Willimantic
Provided a price that fit our budget.
Testimonial by Lori M. from Willimantic, CT

Experienced roofing contractor & gutter company in Willimantic, CT

We have been serving Connecticut residents since 1998 and are committed to bringing you peace of mind. We are Windham 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 Willimantic, 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 Willimantic, 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 Willimantic 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 Willimantic, 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 Willimantic, 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 Willimantic 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 Willimantic
All
This 2-Family home in Willimantic had an old 30-year roof that needed to be replaced. However, there was no plywood underneath the old shingles. This...
Roofing
Willimantic, CT is home to a myriad of elegant Victorian houses that were built in the era of the prosperous Thread Mill Factories. Several of these...
Job Stories From Willimantic, CT
Roof Repair in Willimantic, CT

All Smiles Dental in Willimantic, CT, contacted Klaus Larsen Roofing for a roof repair, and we were happy to help. The job involved replacing the entire ridge of the roof, cutting a PVC board to fit the parapet wall, and installing a coping cap on the wall. We started by removing the old roofing materials and cleaning up all the debris, including using a magnetic roller to pick up nails. All debris was carefully loaded into a dumpster and taken away. The repair work was done on the second story, and we installed special Hip and Ridge shingles on all ridges and hips to make the roof stronger. We secured each shingle with six roofing nails to prevent them from shifting or coming loose over time. Additionally, we installed the coping cap on the parapet wall and cut PVC boards to match it, creating a smooth and clean look. We also added support strips on the concrete wall using screws, which helped secure the PVC boards. Finally, we finished by installing PVC corners and trim boards to give the roof a neat and professional appearance. This repair work is backed by a 5-year repair warranty, ensuring All Smiles Dental peace of mind.

Roof Repair in  Willimantic, CT - Photo 1
Roof Replacement in Willimantic, CT

This home in Willimantic, CT, faced serious trouble when a tree fell onto the roof, causing extensive damage. Acting quickly, the homeowner reached out to the company they knew would provide reliable and efficient service—Klaus Larsen Roofing. Our team responded promptly to assess the situation and begin the repairs, ensuring the home would be safe and secure once again. Take a look through this series of photos to see the steps unfold! First, our team arrived on-site to assess the damage caused by the fallen tree, inspecting the roof for structural issues. Next, we our crew removed the shingles and any damaged plywood to clear the way for repairs. After replacing any compromised plywood, we applied a durable underlayment to protect against leaks, the SealoronXT Ice&Water and the VeloraOne Roof Underlayment. Finally, new IKO Dynasty shingles were installed to restore the roof’s integrity and appearance. This home in Willimantic, CT, is safe and secure once again!

Roof Replacement in Willimantic, CT - Photo 1Roof Replacement in Willimantic, CT - Photo 2Roof Replacement in Willimantic, CT - Photo 3Roof Replacement in Willimantic, CT - Photo 4Roof Replacement in Willimantic, CT - Photo 5Roof Replacement in Willimantic, CT - Photo 6Roof Replacement in Willimantic, CT - Photo 7
Work Requests From Willimantic, CT
Project Location: Willimantic, CT
Water getting into house need someone to look at it.
Project Location: Willimantic, CT
Home inspection was completed at property and was informed of a roof updating/repair required.
Project Location: Willimantic, CT
Aged roof that's been patched a few times. One area is disintegrating.
Project Location: Willimantic, CT
During the storm today, roof leaked and the flashing around the chimney leaked. The cap for the chimney was also blown off.
Project Location: Willimantic, CT
I need replace roof and gutters
Project Location: Willimantic, CT
Purchasing a house, roof is 10 years old and needs replacement. I can share the home inspection report for reference.
Project Location: Willimantic, CT
Would like to get a quote on gutter replacement/installation!
Project Location: Willimantic, CT
Need a quote for roof and gutter cleaning
Project Location: Willimantic, CT
I noticed sediments of roofing shingles in gutter downspout, and as a restful I would like a consultation.
Project Location: Willimantic, CT
Looking to get a quote on a full roof replacement on our home.
Project Location: Willimantic, CT
Replace existing roof
Project Location: Willimantic, CT
I have two small leaks in my roof around the plumbing vent. I am not sure exactly where the leaks and whether they are coming through shingles in that area or from the connection with the vent itself.
Project Location: Willimantic, CT
Need a new roof for the house and garage. Looking for a quote.
Project Location: Willimantic, CT
Overhang leaks onto porch We have a soft spot on the roof Gutters need repair and repositioned On the back of house
Project Location: Willimantic, CT
I am looking for an estimate to install a seamless gutter and downspout across the back of a barn. It is 40 feet across with tin roofing. Thank you!
Project Location: Willimantic, CT
I have a section of the roof on my cottage that leaks. it is a small section over the back enclosed porch. There is very little pitch to the roof.
Project Location: Willimantic, CT
Have a leak- noticed it in the bathroom. Today we had a few downpours. The ceiling is wet.
Project Location: Willimantic, CT
During the high winds this evening, we have a leak in the 2nd floor ceiling. I believe there are shingles that have been blown off and the water is coming in the chimney... but who knows... would appreciate a call and estimate asap please. Thank you.
Project Location: Willimantic, CT
Project Location: Willimantic, CT
Need to have roof replaced before end of March