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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

Before and After Pictures from Glastonbury
South Glastonbury, CT Colonial Roof Replacement

South Glastonbury, CT Colonial Roof Replacement

Before After
South Glastonbury, CT Colonial Roof Replacement South Glastonbury, CT Colonial Roof Replacement

This was a beautiful home in South Glastonbury that we paired with a top notch roof. Here we used a Slatestone Gray shingle. 

Glastonbury, CT Roof Replacement

Glastonbury, CT Roof Replacement

Before After
Glastonbury, CT Roof Replacement Glastonbury, CT Roof Replacement

Here was a roof in Glastonbury, CT that was in need of repair. We always make sure to clean up thoroughly after a job and this property was left free of any nails or old shingles. 

Carpenter Bee Damage in Glastonbury, CT

Carpenter Bee Damage in Glastonbury, CT

Before After
Carpenter Bee Damage in Glastonbury, CT Carpenter Bee Damage in Glastonbury, CT

During the renovation of this Glastonbury property, we found that carpenter bees had done considerable damage to the fascia boards around the trim. Outdated and unvented wood was making an ideal home for nature to start taking over. We installed new soffit vents, with air intake at the gutters and exhaust at the ridge. The roof was done in OC Duration Design Sedona Canyon Duration shingles, with a solar fan and additional ice panels for winter weather.  

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

Leading Roofer & Gutter Installation Company in Glastonbury, CT

 He was the most responsive person that I worked with. ...
Happy Customers Surrounding Glastonbury, CT
Work Requests

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Reviews From Glastonbury
Testimonials From Glastonbury
I liked everything about my experience with Klaus and I would have no problem recommending him.
Testimonial by Kenneth B. from South Glastonbury, CT
It gives me great pleasure to recommend Klaus Larsen LLC for your roofing project.
Testimonial by Tom G. from Glastonbury, CT

Quality gutter installation & roofing contractors in Glastonbury, CT

Homeowners in Glastonbury need a durable roof, siding, and gutter protection system that will withstand all kinds of weather and last for years, while also making their house look beautiful, all at an affordable cost! The good news is that the contractors at Klaus Larsen LLC have been doing just that in Connecticut for over 20 years! We offer solutions for all of your roof repair, siding, gutter installation, and gutter leaf guard needs.

Whether your home has roof leaks, roof storm damage, clogged gutters, or stained siding, our experienced contractors have seen it all, and there's no project that is too big or too small. We provide you with the best service and materials and the lowest price. We are proud to offer:

  • Roof replacement
  • Skylight and sun tunnel installation
  • Snow removal
  • Siding installation
  • Siding replacement
  • Vinyl siding installation
  • Vinyl siding replacement
  • Roof inspection
  • Asphalt shingle roofing
  • Metal roofing
  • Energy-efficient shingles
  • Gutter installation
  • Gutter guard installation
  • Downspout installation
  • And more!

No matter what project you undertake, we will be there to finish it with excellence. When you're working with Klaus Larsen LLC, you're working with family! Your satisfaction is our priority and we will work hard to make the dreams you have for your home a reality.

Here at Klaus Larsen LLC,  we are committed to making the gutter installation and roofing process as simple and pleasant as possible for you. To meet this goal, we offer a free, no-obligation estimate for any of our services, including roof repairs, roof replacements, seamless gutters, gutter guards, vinyl siding, and more. Call 1-844-640-9774 or click below to get started!

Trusted roof replacement contractors in Glastonbury, CT

Do you want to upgrade your home and boost your property value? Do you want to repair old damage? Do you want to protect your home? You've come to the right place! Klaus Larsen LLC is an A+ BBB Rated, licensed, and award-winning contractor that excels in roof replacement and we are qualified and equipped to give you a roof you can be proud of. 

Whether damage from a storm or attempting a house sale has caused your need for a new roof, Klaus Larsen LLC's contractors have the skills and materials you need to create an attractive, effective replacement roof.  Some of our different options for roofing materials include:

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

In addition to roof replacement, we also install sun tunnels and skylights to bring even more light into your home and value to your property! 

No one values their customers as much as we do, so we work with insurance adjusters to ensure that you can finance your roof replacement in a way that fits your budget. There's no reason to live in an unsafe home any longer - upgrade your Glastonbury home with any of our roofing services today!

Call 1-844-640-9774 or click below to schedule a free estimate!

Enhance your home with gutter installation & gutter guards

Does your home have faulty, clogged gutters? Never worry about water intrusion problems, like structural damage, basement flooding, stained siding, and roof wood rot, caused by poor gutter protection. Have our contractors install one of Klaus Larsen LLC's custom-made covered gutters, leaf covers, downspouts, and downspout extensions that will match any budget or style!

The experts at Klaus Larsen LLC are certified and able to undertake any gutter installation project you may have. Get the home you've always dreamed of with our gutter protection system, including clog-proof seamless gutters and gutter leaf guards. Klaus Larsen LLC provides several gutter services, including:

  • Gutter installation
  • Gutter replacement
  • Seamless gutters
  • Gutter guard & leaf covers for gutters
  • Downspout & downspout extensions

Our gutter installation experts draw on their extensive knowledge and experience when evaluating your home and upgrading your seamless gutters, gutter guards, downspouts, and extensions. Why settle for less when you can have a home that you can be proud of?


Get your free roof replacement cost quote today!

Our gutter and roofing contractors are the experts you can trust with your roofing or gutter installation project. Whether you need roof leak repairs, a roof replacement, new seamless gutters with clog-proof leaf covers, or to upgrade your vinyl siding, we are ready and able to take on any challenge and we guarantee that we will surpass your expectations! We are proud to serve the Glastonbury area and want to give you a free estimate for any of our services, including roof repairs, roof replacements, new siding, covered gutters, gutter guards, and more. Call 1-844-640-9774 or click below to get started!

Case Studies From Glastonbury
The homeowner of this colonial in Glastonbury, CT called Klaus Larsen to see what could be done for a small leak. There was a plumbing vent through...
This home in Glastonbury, CT was beginning to show signs of an old roof. The homeowner called Klaus Larsen and spoke of watermarks on the ceiling...
When we came and inspected this home, we found that the roof deck had old tongue & groove boards underneath the shingles. The boards were all...
Job Stories From Glastonbury, CT
Copper Gutter Installment in Glastonbury, CT

This home had already existing copper gutters that were worn, malfunctioning and in need of being replaced. Klaus Larsen Roofing started by tearing down those existing gutters and installing new 5-inch 1/2 round copper gutters, which had soldered seams. We then removed and disposed of the existing downspout, and in turn installed a new copper downspout into the ground. This installment came with the Klaus Larsen Standard 5-Year Warranty. This house is now looking better than ever, thanks to Klaus Larsen Roofing!

Copper Gutter Installment in Glastonbury, CT - Photo 1
Vented Deck in Glastonbury

These owners in Glastonbury called because they were experiencing leaks from Ice dams on the front and rear dormer of the main house. The roof itself also had shingles missing. To solve the Ice dams leaks we installed a Vented Deck System underneath the new shingles. What is a Vented Deck and what does it do? A Vented Deck is a layer of insulation, furring boards, and plywood that creates air flow underneath the shingles. We first installed 1/2” Insulation board on the existing plywood deck. Next, we nailed several 4” wide furring strips on the insulation running parallel to the rafters. Then another layer of plywood does over the strips creating gaps between the furring strips for air. Lastly, the underlayment and shingles are installed as usual on the plywood. What this does is allow cold air to pass between the furring strips and take heat away from the shingles. Ice Dams are caused by heat rising to the shingles during the winter months. If there is no heat reaching the shingles from the attic, then you won’t get ice dams. With a full Vented Deck System, these owners are now ice dam free!  

Vented Deck in Glastonbury - Photo 1Vented Deck in Glastonbury - Photo 2
Glastonbury Roofers Replace Shingles on House and Shed

Klaus Larsen Roofing has completed over 70 roofs in Glastonbury and South Glastonbury alone. The house and shed roofs were replaced back in September of 2016. 2,500 square feet of shingles had to come off the roof. When the roof is off, this allows access to the plywood and replaced anything that has rotted. Next, the WeatherLock Ice & Water barrier is laid down and sticks to the plywood. This is installed 9 feet up the roof and above code. All additional plywood is protected by ProArmor synthetic underlayment. Lastly, the Starter shingles and Duration Architectural shingles are nailed down. Each shingle had a nailing area called the SureNail strip which strengthens and thickens the shingle. The owners chose Slatestone Gray and were very happy with the professional job.

Glastonbury Roofers Replace Shingles on House and Shed - Photo 1
Water Damage in Attic Space - Roof Repair Services

This roof on this South Glastonbury (06073) home was about 15 years old. We found some water damage up in the attic space, which indicated that moisture was being let in under the shingles. Klaus Larsen installed Estate Gray shingles with a VentSure ridge vent. This vent comes with a Weather Protector moisture barrier that provides top notch attic ventilation.

Water Damage in Attic Space - Roof Repair Services - Photo 1Water Damage in Attic Space - Roof Repair Services - Photo 2Water Damage in Attic Space - Roof Repair Services - Photo 3Water Damage in Attic Space - Roof Repair Services - Photo 4Water Damage in Attic Space - Roof Repair Services - Photo 5Water Damage in Attic Space - Roof Repair Services - Photo 6
Work Requests From Glastonbury, CT
Project Location: Glastonbury, CT
Roof installation
Project Location: Glastonbury, CT
Wind damage to roof
Project Location: Glastonbury, CT
I need a new roof
Project Location: Glastonbury, CT
I believe I need my roof replaced
Project Location: Glastonbury, CT
Looking for a quote for roof replacement, chimney will also need reflashing
Project Location: Glastonbury, CT
Good morning. Was going to contact you to assist with an additional gutter -- you guys did great job at my home in 03/21. Still want that but unfortunately have a second need and glad to see you are roofing specialists -- I have water coming through roof in "newer area" of my home. I *think* it is related to the methane vent pvc pipe but am not sure. I wanted to cut into the sheet rock where the leak is showing by my wife said there's no way in hell she's letting me do that. Need your help at your convenience. Thank you.
Project Location: Glastonbury, CT
New to this house. The back of the house has a dormer. It leaks along the right (SouthEast) side. It would appear it was poorly flashed and in need of repair ASAP.
Project Location: Glastonbury, CT
Would like a gutter to replace roof had shingle blow off last wind storm
Project Location: Glastonbury, CT
Looking for a SUNROOM on my existing deck ,Converting my deck in to a sunroom.Also looking for SKYLIGHT on my front door .Its a Ranch type propoerty .Thanks Vish
Project Location: Glastonbury, CT
Need flashing inspection around chimney and bath exhaust vents, and to close up old (unused) bath vents where birds are getting in.
Project Location: Glastonbury, CT
Need roof repair (now) and quote for shingle replacement in 2022
Project Location: Glastonbury, CT
None, need quote on new roof
Project Location: Glastonbury, CT
Looking to get a new roof
Project Location: Glastonbury, CT
Hi. We need 4 things done: 1. Replace roof cap shingles (about 6 of them?) 2. Reconfigure rain drip in gutter over garage 3. fix small front piece of siding that is buckled (aluminum but can maybe reuse piece). 4. New gutters 6" on back of house (about 40'). Need tall 30+ foot ladder since 4 stories up.
Project Location: Glastonbury, CT
We are looking to possibly replace our gutters and install gutter guards
Project Location: Glastonbury, CT
I noticed a water mark on my ceiling that I assume is the result of a roof leak. I am looking for a repair estimate.
Project Location: Glastonbury, CT
I have a 16'x16' pavilion that I'd like gutters added to. Landscaping company is already trenching for the outflow, just need the gutters and a single drain line. Thanks!
Project Location: Glastonbury, CT
We have a house under contract, noted above (78 Stonepost Road) and know that we need some roof repairs immediately and replacement in the not too distant future. Please contact me about what access you would need in order to get me a quote for both.
Project Location: Glastonbury, CT
Roof replacement
Project Location: Glastonbury, CT
Roof installation