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Top-Rated Major renovation multiple room pros in Cos Cob - Updated Nov 2026

Avatar for A2Z Contractors, LLC
A2Z Contractors, LLC
4.6(
133
)
Major Renovation - Multiple Rooms

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"I recently hired A-Z Contracting and Weslyn for a laundry room build and a bathroom renovation, and I couldn’t be happier with the results. They built our new laundry room from scratch, including all new plumbing, electrical work, and a new dryer vent installation. They also renovated and extended our bathroom, and the finished space looks fantastic. Weslyn and his team were trustworthy, punctual, and extremely reliable throughout the entire project. I felt completely comfortable giving them access to my home while I wasn’t there, which says a lot about their professionalism and integrity. The craftsmanship is excellent, and the attention to detail really shows in the finished work. All of the workers were knowledgeable, polite, and respectful of our home. The project was completed efficiently and to a very high standard. I would absolutely use A-Z Contracting again and highly recommend Weslyn and his team to anyone looking for quality work done right."
bathroom
bathroom
bathroom
bathroom
bathroom

+5

Response time2 days
16 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Solimine Contracting, LLC
Solimine Contracting, LLC
4.0(
47
)
Major Renovation - Multiple Rooms

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"The renovation of my two bathrooms was handling professionally, competently and efficiently from the planning stage to the end results. My questions were answered quickly and completely and any concerns were handled immediately. The staff from the contractor, Trevor, on impressed me with their knowledge, skill, and their work ethic. The bathrooms are beautiful! I heartily recommend this company."
Eclectic Kitchen - Red Open Stainless Steel Appliances
Traditional Kitchen - Red Open Small Light Gray Tile Back Splash
Kitchen
New Canaan Home Renovation
Wrap Around Porch

+323

Response time2 days
35 neighbors recently requested a quote
Recommended by63%of homeowners
Avatar for The Builders & Cleaners
The Builders & Cleaners
4.9(
122
)
Major Renovation - Multiple Rooms

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"The cleaners and builders did a fantastic job renovating the living room, kitchen, and bathroom. Everything was done so professionally. I thought this project would be a nightmare, but they were so attentive and responsive. I will definitely be using their services in the future for any work I need to be done around the house."
Dust out from the ductwork
Dust out from the ductwork
Clean vent
Clean vent
Dust in the return

+1837

Response time1 day
Response rate92%
Recommended by85%of homeowners
Avatar for Pro Services
Pro Services
4.8(
152
)
Major Renovation - Multiple Rooms

Serving Cos Cob, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Emergency services offered

"Every step of the way was above expectations. Scheduling was easy, I was notified of ETA, and Al, our technician, was prompt and thorough. We needed our gas fireplace cleaned, and the job was done thoroughly, carefully, and efficiently. Our 25+ year old fireplace now functions perfectly and looks amazing. Can’t beat the price. 10/10 recommend."
Chimney Cap Installation
Smoke chamber before
Chimney Sweep Project
Fireplaces Project
Chimney Sweep Project

+36

Response time4 days
Response rate100%
47 neighbors recently requested a quote
Avatar for Lasting Strength
Lasting Strength
5.0(
46
)
Major Renovation - Multiple Rooms

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1994

Free estimates

Customers say: Quick response

"My wife and I hired Lasting Strength for a gut renovation of the main bathroom in our house. Our experience was nothing short of excellent. Adam and his team are talented and respectful. They were constantly communicating with us during the entire process to discuss ideas and confirm the plan / our vision for the space. They treated our home as though it was their own, taking care not to damage other areas during the work and also cleaning up after every day was completed. We also decided to install a new slider to our deck where one didn't exist before. Adam helped in confirming the size to be ordered and they did another great job. We unexpectedly found some rot on the house during the slider project. They were able to come up with a solution to repair it that didn't inconvenience us and it prevented a huge problem developing later. Lasting Strength is talented, knowledgeable and trustworthy and my wife and I would recommend them to anyone. Can't wait for our next project!"
tv cabinet built in
shower
wine cellar
built in
pergola

+116

Response time4 days
Response rate100%
5 neighbors recently requested a quote
Jermaine C Home Improvement, LLC
4.7(
26
)
Major Renovation - Multiple Rooms

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

JC Home Improvement specializes in carpentry so we have great experience repairing deteriorated wood and fixing damaged sheetrock. We also remodel bedrooms, bathrooms and kitchens. Further more we take on small jobs installing household décor such as mirrors and ceiling fans and etc. \n \nWe have an affordable and efficient pricing system. This system allows us to provide the best possible results for our clients and gives our clients peace of mind to make executive decisions. \n \nJermaine Ferguson, owner of Jermaine C Home Improvement has over 15 years of experience as a carpenter and project manager. He is experienced in all areas of the services we offer. Jermaine is actively involved in each project at JC Home Improvement LLC. \n \n \n \n

Recommended by69%of homeowners
Avatar for RockSolid Construction, LLC
RockSolid Construction, LLC
4.6(
26
)
Major Renovation - Multiple Rooms

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1992

Free estimates

Small jobs welcome

"Working with Jeff White, his crew and sub-contractors were all very processional, friendly and always on time each day of the project. It has been a great experience and I'm very happy with the end result of my bathroom remodel. I would highly recommend RockSolid Construction to anyone and I'll be sure to pass along to others. Thanks, Patty T. (Norwalk, CT)"
Response time5 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for Reed Construction, LLC
Reed Construction, LLC
5.0(
6
)
Major Renovation - Multiple Rooms

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"I highly recommend Reed Construction LLC. They renovated both of my bathrooms and delivered exceptional quality from start to finish. They listened carefully to all of my concerns, addressed every issue promptly, maintained excellent communication throughout the entire project. Their professionalism, attention to detail, and commitment to customer satisfaction truly sets them apart."
Cranberry Kitchen.
Cranberry Kitchen.
Cranberry Kitchen.
Cranberry Kitchen.
Cranberry Kitchen.

+4

1 neighbors recently requested a quote
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FAQs for major renovation multiple room service projects in Cos Cob, CT

Gutting a house involves completely removing outdated elements, including drywall, insulation, and fixtures, to reveal the underlying structure. This process is not only ideal for a complete remodel but is also critical in emergency situations such as flood damage where compromised materials must be replaced immediately. Contractors follow OSHA-approved safety measures throughout the demolition to ensure a secure work environment. This method provides a fresh, safe canvas for any future renovation.

Gutting a house is a cost-efficient choice. Home renovations cost between $20,000 and $88,000 compared to the cost to build a new house of $122,500 to $411,500. The reduced cost stems from retaining the existing structural framework while updating the interior. Factors such as house size, material quality, and labor directly influence the total expenses, making a gut renovation a financially smart decision.

The cost of demoing an interior is worthwhile because gutting a house creates a completely safe and refreshed environment by removing toxic or damaged materials like asbestos, mold, and deteriorated components. Professional supervision ensures all hazards are properly managed and health and safety standards are met. This process revitalizes the home's interior and can increase its structural integrity and overall value.

Remodeling a bathroom costs between $6,640 and $17,600, with high-end remodels exceeding $30,000. The final price is directly influenced by the quality of fixtures and design features—modern tiling, advanced plumbing, and custom details all add to the definitive expense. By selecting superior materials and design elements, homeowners ensure both functionality and a remarkable aesthetic upgrade.

Kitchen renovations range from $14,500 to $41,500 when the original layout is maintained. However, changing the layout by removing load-bearing walls or upgrading to premium appliances directly escalates costs, often adding over $1,000 per modification. These precise enhancements reflect the high-quality standards and result in a transformative and efficient upgrade.

A full gut renovation typically spans between four months and a year and a half. This period accounts for the permitting process, material procurement, and the overall scale of the project. Every phase—from demolition through rebuilding—involves careful planning and execution to meet deadlines while ensuring the work adheres to safety and quality standards.

The Cos Cob, CT homeowners’ guide to major renovation multiple room services

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