Top-rated roofers.

Get matched with top roofers in Cos Cob, CT

There are 51 highly-rated local roofers.

Need a pro for your roofing project in Cos Cob, CT?

Select your specific project to find the pro for you.

TRUSTED BY COS COB, CT HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon612
    Verified roofing services reviews

Find Roofers in Cos Cob

Avatar for Angus Theriault & Sons Inc

Angus Theriault & Sons Inc

323 Ward Ave
4.95(
19
)
Approved Pro

Angus Theriault & Sons Inc

323 Ward Ave
4.95(
19
)
Approved Pro
Customers say: Super punctual
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 local quotes requested

Angus Theriault & Sons – Providing Residential and Commercial Roofing Services in Westchester County and Surrounding Areas for Over 75 Years. Integrity and quality work have been prime ingredients in our success from the start. We have built a solid reputation on customer satisfaction, achieved through quality work, attention to detail and prompt service.Angus Theriault & Sons specializes in residential roofing, sheet metal fabrication, gutters, soffit, fascia, copper and aluminum work and more. We can suggest the best application for your particular needs whether it be maintenance, reinforcement, restoration or a complete new roofing system. We carefully estimate every job, quote a reasonable price and complete the work in the shortest time possible. We are licensed, insured, and certified by the manufacturers and provide superior craftsmanship and experienced professionalism. Additional Email: [email protected]

"I called for a repair to my daughter's roof. The room with the wet sheetrock has a cathedral ceiling with no attic access to determine the source of the leak. Steve inspected the roof section and suggested that the wetness was due to condensation. Vents were installed and small section of roof was replaced at a very reasonable cost. Steve always responded to calls and follow-up questions promptly, Very competent and obliging. A pleasure to work with,"

Mel W on October 2020

Angus Theriault & Sons – Providing Residential and Commercial Roofing Services in Westchester County and Surrounding Areas for Over 75 Years. Integrity and quality work have been prime ingredients in our success from the start. We have built a solid reputation on customer satisfaction, achieved through quality work, attention to detail and prompt service.Angus Theriault & Sons specializes in residential roofing, sheet metal fabrication, gutters, soffit, fascia, copper and aluminum work and more. We can suggest the best application for your particular needs whether it be maintenance, reinforcement, restoration or a complete new roofing system. We carefully estimate every job, quote a reasonable price and complete the work in the shortest time possible. We are licensed, insured, and certified by the manufacturers and provide superior craftsmanship and experienced professionalism. Additional Email: [email protected]

"I called for a repair to my daughter's roof. The room with the wet sheetrock has a cathedral ceiling with no attic access to determine the source of the leak. Steve inspected the roof section and suggested that the wetness was due to condensation. Vents were installed and small section of roof was replaced at a very reasonable cost. Steve always responded to calls and follow-up questions promptly, Very competent and obliging. A pleasure to work with,"

Mel W on October 2020


JJP Contracting Unlimited, Inc.

432 W William Street
4.74(
27
)
Approved Pro

JJP Contracting Unlimited, Inc.

432 W William Street
4.74(
27
)
Approved Pro
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
115 local quotes requested

At this time, we are not offering Roof Repairs. We are only doing full roof installations and siding installation. JJP Contracting Unlimited, Inc. is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and to provide our employees with a great place to work. We are looking forward to working with you! Give us a call today.

"Follow up to earlier review -JJP Contracting Jose and Brian are running a top tier business. I'm going to be totally honest with the people of Angi- We hired this team to perform a siding job and it originally didn't go well. They pulled down the pre-existing wood shingle siding that was rotted and installed new Siding on the home. When the siding first went up there was a defect that we all couldn't understand. We thought that it wasn't okay to leave it up but tried to see if the warmer weather would cause it to unbuckle. JJP stood by their words even months after the siding had been installed and came back to make the necessary fixes. I appreciate this more than the team knows because too often contractors are not true to what they say. This team is running an honest business that I can truthfully say that I trust. I look forward to discussing further projects with their group."

Warren H on September 2024

At this time, we are not offering Roof Repairs. We are only doing full roof installations and siding installation. JJP Contracting Unlimited, Inc. is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and to provide our employees with a great place to work. We are looking forward to working with you! Give us a call today.

"Follow up to earlier review -JJP Contracting Jose and Brian are running a top tier business. I'm going to be totally honest with the people of Angi- We hired this team to perform a siding job and it originally didn't go well. They pulled down the pre-existing wood shingle siding that was rotted and installed new Siding on the home. When the siding first went up there was a defect that we all couldn't understand. We thought that it wasn't okay to leave it up but tried to see if the warmer weather would cause it to unbuckle. JJP stood by their words even months after the siding had been installed and came back to make the necessary fixes. I appreciate this more than the team knows because too often contractors are not true to what they say. This team is running an honest business that I can truthfully say that I trust. I look forward to discussing further projects with their group."

Warren H on September 2024


Avatar for A1 Home Improvement, LLC

A1 Home Improvement, LLC

1348 Berlin Turnpike
4.43(
7
)
Approved Pro

A1 Home Improvement, LLC

1348 Berlin Turnpike
4.43(
7
)
Approved Pro
Customers say: Quality work
229 local quotes requested
45 years of experience

A1 Home Improvement LLC. is based on the belief that the needs of our customers are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. We specialize in residential and commercial exterior projects. Call today for a quote.

"Roofing its something no home owner ever wants to do, but most have to go through. I won't even lie I wasn't even planning on getting a new roof, but Dale Knocked on my door and thats where the process started. My roof did go through insurance & aside from signing paper work/paying my deductible A1 handled everything. Obviously specific details from the insurance goes to you and then given to A1. Its not a short process and there is paperwork you have to sign, but all In all it did take me about 4 to 5 months where the process was started to roof replacement. Dale handled interactions with showing my the conditions of my roof and how to go about getting it put through the insurance. The only hiccup was that I have solar panels and I did feel like they where taken down to early (almost 5 months off), but I made my concerns known and one of the Managers called me and credited me $500 bucks (100 per month) that the panels where off. They did tell me setbacks in productions and things happen, but made me happy by giving me this credit. Didn't fight me on it, and didn't make me feel like I was just an insurance check on the other end. You can trust A1 home improvement with your home. I would like to thank Dale for his work & all the others that helped me throughout one of the most stressful process there can be for a house."

RUBEN G on July 2025

A1 Home Improvement LLC. is based on the belief that the needs of our customers are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. We specialize in residential and commercial exterior projects. Call today for a quote.

"Roofing its something no home owner ever wants to do, but most have to go through. I won't even lie I wasn't even planning on getting a new roof, but Dale Knocked on my door and thats where the process started. My roof did go through insurance & aside from signing paper work/paying my deductible A1 handled everything. Obviously specific details from the insurance goes to you and then given to A1. Its not a short process and there is paperwork you have to sign, but all In all it did take me about 4 to 5 months where the process was started to roof replacement. Dale handled interactions with showing my the conditions of my roof and how to go about getting it put through the insurance. The only hiccup was that I have solar panels and I did feel like they where taken down to early (almost 5 months off), but I made my concerns known and one of the Managers called me and credited me $500 bucks (100 per month) that the panels where off. They did tell me setbacks in productions and things happen, but made me happy by giving me this credit. Didn't fight me on it, and didn't make me feel like I was just an insurance check on the other end. You can trust A1 home improvement with your home. I would like to thank Dale for his work & all the others that helped me throughout one of the most stressful process there can be for a house."

RUBEN G on July 2025


Avatar for 3 Son's Siding & Gutters LLC

3 Son's Siding & Gutters LLC

Located In:
5.00(
5
)
Approved Pro

3 Son's Siding & Gutters LLC

Located In:
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
64 local quotes requested

Family owned and operated home improvement company, with a very simple mission: provide quality home improvement services at affordable prices. We truly care for our customers! We specialize in all phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, siding, roofing, gutters, and more! Call today for a free consultation.

"After a few delays because of rain they came they completed the job within two and a half hours cleaned everything up actually did some extra reinforcement on my porch at no extra charge highly recommend"

Arthur D on June 2025

Family owned and operated home improvement company, with a very simple mission: provide quality home improvement services at affordable prices. We truly care for our customers! We specialize in all phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, siding, roofing, gutters, and more! Call today for a free consultation.

"After a few delays because of rain they came they completed the job within two and a half hours cleaned everything up actually did some extra reinforcement on my porch at no extra charge highly recommend"

Arthur D on June 2025


"I recently had an asphalt driveway put in. The crew was very professional. The driveway is smooth and very happy with the quality of the new driveway. They even went above and beyond and put in a small drainage area for water runoff. It has definitely improved the appearance of my home."

Elaine A on February 2025

Omega Development is a Fairfield, County staple. With over 20+ years of experience Omega is your one stop shop for all things construction.

"I recently had an asphalt driveway put in. The crew was very professional. The driveway is smooth and very happy with the quality of the new driveway. They even went above and beyond and put in a small drainage area for water runoff. It has definitely improved the appearance of my home."

Elaine A on February 2025


Avatar for Highland Window & Siding Company LLC

Highland Window & Siding Company LLC

998 Farmington Avenue
4.85(
154
)
Approved Pro

Highland Window & Siding Company LLC

998 Farmington Avenue
4.85(
154
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
110 local quotes requested

As a multi-year Super Service Award winner, Highland Window Company LLC is a family owned and operated business with over 18 years of industry experience. Our owner, Marc Cowan, will come to your home to deliver your exact written quote in 30 minutes. NO high pressure sales tactics and NO sales people working for high commissions. It is our goal to build a relationship with our clients that will last a lifetime. What sets us apart from our competitors is our dedication to put our customers first. All of our high quality, energy star rated products are covered by a lifetime transferable warranty. Our highly trained installers work only for Highland and have been working with Highland for over 10 years. That means that every review you read on Angie’s List was installed by the same team. The same team that will carry out your installation. Angie’s List members should feel confident about hiring Highland for all window, siding and roofing needs. We guarantee that we will take the stress out of home improvement!

"We have had many home renovation projects done over the past two years. Marc and his team replaced most of our windows about 6 months ago. Of all the services we had done, I would put Marc & Highland Windows at the top of the list. Great product, great value, very responsive, very professional. We shopped around plenty before deciding on Highland, and we very happy we went with them."

Eric S on September 2022

As a multi-year Super Service Award winner, Highland Window Company LLC is a family owned and operated business with over 18 years of industry experience. Our owner, Marc Cowan, will come to your home to deliver your exact written quote in 30 minutes. NO high pressure sales tactics and NO sales people working for high commissions. It is our goal to build a relationship with our clients that will last a lifetime. What sets us apart from our competitors is our dedication to put our customers first. All of our high quality, energy star rated products are covered by a lifetime transferable warranty. Our highly trained installers work only for Highland and have been working with Highland for over 10 years. That means that every review you read on Angie’s List was installed by the same team. The same team that will carry out your installation. Angie’s List members should feel confident about hiring Highland for all window, siding and roofing needs. We guarantee that we will take the stress out of home improvement!

"We have had many home renovation projects done over the past two years. Marc and his team replaced most of our windows about 6 months ago. Of all the services we had done, I would put Marc & Highland Windows at the top of the list. Great product, great value, very responsive, very professional. We shopped around plenty before deciding on Highland, and we very happy we went with them."

Eric S on September 2022


Avatar for MJA Contracting LLC

MJA Contracting LLC

26 Cottage St
5.00(
27
)
Approved Pro

MJA Contracting LLC

26 Cottage St
5.00(
27
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
17 local quotes requested

M.J.A Contracting is an NJ Licensed Home Improvement Contractor, fully Insured and family owned business, operated with over 10 years of industry experience with about 8 current employees. We offer competitive market rates to our customers, great quality work and full customer satisfaction guaranteed .

"MJA did a wonderful job on the new front stairs to our home! Everyone in the neighborhood noticed."

Tara G on February 2024

M.J.A Contracting is an NJ Licensed Home Improvement Contractor, fully Insured and family owned business, operated with over 10 years of industry experience with about 8 current employees. We offer competitive market rates to our customers, great quality work and full customer satisfaction guaranteed .

"MJA did a wonderful job on the new front stairs to our home! Everyone in the neighborhood noticed."

Tara G on February 2024


Avatar for Mighty Dog Roofing of Western Connecticut

Mighty Dog Roofing of Western Connecticut

37 Danbury Road
5.00(
8
)
Approved Pro

Mighty Dog Roofing of Western Connecticut

37 Danbury Road
5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
122 local quotes requested

Our Mission at Mighty Dog Roofing is to be an industry changer, leading the industry with integrity, finding innovative ways to exceed the expectations of our clients and the communities we serve, and providing a customized experience each and every time we care for their home. At Mighty Dog Roofing, we pledge superior service to our customers through excellent communication and customer service. How do we accomplish that? Courteous customer education, community service, and the highest level of integrity and ethics. Mighty Dog Roofing is endorsed by the nation's top manufacturers and distributors, offering our customers the best and most innovative products and services in the industry.

"Blake and his team are very professional. Blake was very informative and answered all of my questions. I couldn't be happier with the work that was done. I highly recommend them for any exterior project."

WENDY H on September 2023

Our Mission at Mighty Dog Roofing is to be an industry changer, leading the industry with integrity, finding innovative ways to exceed the expectations of our clients and the communities we serve, and providing a customized experience each and every time we care for their home. At Mighty Dog Roofing, we pledge superior service to our customers through excellent communication and customer service. How do we accomplish that? Courteous customer education, community service, and the highest level of integrity and ethics. Mighty Dog Roofing is endorsed by the nation's top manufacturers and distributors, offering our customers the best and most innovative products and services in the industry.

"Blake and his team are very professional. Blake was very informative and answered all of my questions. I couldn't be happier with the work that was done. I highly recommend them for any exterior project."

WENDY H on September 2023


Avatar for LCA Home Improvement

LCA Home Improvement

15B Pocono Lane
5.00(
2
)
Approved Pro

LCA Home Improvement

15B Pocono Lane
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
26 local quotes requested

At LCA Home Improvement our customers needs are the utmost importance. Our team with 10+ years experience is committed to meeting your needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small, please contact us for a free estimate!

"We couldn’t be happier with our recent bathroom renovation! Carlos was fantastic to work with—he made helpful suggestions throughout the process, including where to purchase materials and creative ways to add extra storage in our small space. The team took the project down to the studs, replaced and relocated plumbing and electrical, and did a meticulous job with the tiling. The results exceeded our expectations—I’m absolutely obsessed with our new bathroom! Carlos and his team were professional, attentive, and a pleasure to work with. We’ll definitely be hiring them for our next renovation."

Jamie B on December 2024

At LCA Home Improvement our customers needs are the utmost importance. Our team with 10+ years experience is committed to meeting your needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small, please contact us for a free estimate!

"We couldn’t be happier with our recent bathroom renovation! Carlos was fantastic to work with—he made helpful suggestions throughout the process, including where to purchase materials and creative ways to add extra storage in our small space. The team took the project down to the studs, replaced and relocated plumbing and electrical, and did a meticulous job with the tiling. The results exceeded our expectations—I’m absolutely obsessed with our new bathroom! Carlos and his team were professional, attentive, and a pleasure to work with. We’ll definitely be hiring them for our next renovation."

Jamie B on December 2024


Avatar for Power Home Remodeling

Power Home Remodeling

60 Commerce Dr
4.67(
362
)
Approved Pro

Power Home Remodeling

60 Commerce Dr
4.67(
362
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
194 local quotes requested

As the nation’s largest full-service exterior home remodeler, we are backed by over 1,000+ Angi Super Service awards and more than one million happy customers. Why? Because we treat each job as an audition. An opportunity to prove ourselves to you. And the results speak for themselves. So make your home all it was meant to be with our unrivaled exterior services. Contact us today for a free, no obligation estimate on replacement windows, roofing, siding, doors, or attic insulation.

"The workers arrived on-time, were very professional and did a great job."

Eric M on August 2025

As the nation’s largest full-service exterior home remodeler, we are backed by over 1,000+ Angi Super Service awards and more than one million happy customers. Why? Because we treat each job as an audition. An opportunity to prove ourselves to you. And the results speak for themselves. So make your home all it was meant to be with our unrivaled exterior services. Contact us today for a free, no obligation estimate on replacement windows, roofing, siding, doors, or attic insulation.

"The workers arrived on-time, were very professional and did a great job."

Eric M on August 2025

...
Showing 1-10 of 229
Roofing questions, answered by experts

A tarp can temporarily stop a roof leak, but how long the solution works heavily depends on the placement and size of the leak. While a tarp can be a temporary solution, it’s crucial to have a professional inspect and repair the leak as soon as possible to implement a permanent fix.

EPDM roofs have a few common problems, most of which can be resolved with regular maintenance. This type of roofing is laid down in sheets with seams, which can be a starting point for leaks. Proper installation and roof sealing can often avoid seam issues. 

The material is also susceptible to tears and punctures from falling branches or other sharp objects. There are black and white versions of EPDM, and the black version is more prone to fade and succumb to UV damage. Regular roof inspections can protect the costs of rubber roof installation and extend the life of your roof.

Condensation can occur on the inside of a roof, but it should always be temporary. It does not necessarily mean there is a roof leak. Condensation happens when the inside and outside of a house are at different temperatures. For instance, if it is hot during the day and then gets very cold at night, the inside of the house will be warmer than the outside and may cause condensation to form on the inside of the attic. This may not be cause for concern, but if it is happening frequently, it should be addressed; otherwise, it could cause roof leaks, compromise the structural integrity of the wood, or allow mold to grow.

If the bay window extends beyond your existing roofline, you must add a roof or a small “skirt” to divert storm water and prevent water damage. The window roof can match your existing house roof, or be finished with copper or other decorative materials. Most bay windows have a roof with complete flashing regardless of their placement to prevent leaks into the home.

The terms “roof sealant” and “roof coating” are used interchangeably to describe the rubber, silicone, polyurethane, or acrylic product applied to the roof’s surface for waterproofing and UV protection. Products like roof caulk can also be called “roof sealant,” but the term is more commonly used for the protective coating.

By submitting this question, I acknowledge and agree that Angi may publicly display my name, city, state, and question on the website for professionals and others to see.

The Cos Cob, CT homeowners’ guide to roofing services

From average costs to expert advice, get all the answers you need to get your job done.