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TRUSTED BY COS COB, CT HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon1.8k+
    Verified subcontracting services reviews

Find Subcontractors in Cos Cob

N.Z Home Improvement

4.99(
75
)
Approved Pro

N.Z Home Improvement

4.99(
75
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

We are a full service remodeling company. We specialize in kitchen and bath, tile, carpentry, painting exterior and interior, general and basement remodels. Call us we are here to address all your remodeling needs.

"All our projects were completed competently and on time. Communication was excellent. Work was efficiently done and areas left clean. Workers are nice people."

Judy S on October 2024

We are a full service remodeling company. We specialize in kitchen and bath, tile, carpentry, painting exterior and interior, general and basement remodels. Call us we are here to address all your remodeling needs.

"All our projects were completed competently and on time. Communication was excellent. Work was efficiently done and areas left clean. Workers are nice people."

Judy S on October 2024


Avatar for The Builders & Cleaners

The Builders & Cleaners

4.89(
94
)
Approved Pro

The Builders & Cleaners

4.89(
94
)
Approved Pro
Customers say: True professional
7 years of experience
Free onsite estimate

Based in West Haven, Connecticut, our team has provided an excellent, affordable service to more than thousands of houses over the years. We are committed to supporting our customers throughout the evaluation process, during the service itself and are available to answer any queries once the work is complete. We are a licensed and fully insured company aiming to respond to all requests involving our services within 24 hours or less. Our professional and knowledgeable staff have a combined experience of over 12 years within the construction, air duct cleaning, and landscaping industries, ensuring guaranteed satisfaction with every job. We pride ourselves in providing a safe, hazard-free environment and maintaining respectful, cordial communications with all of our clients. All technicians can be relied on to keep project sites clean both during and after the work is complete.

"Reached out to get our gutters cleaned. David was very responsive and offered a reasonable rate. Did the job quickly and thoroughly, sent lots of pictures and video of the finished work. Very satisfied, would definitely recommend"

Isaac D on October 2025

Based in West Haven, Connecticut, our team has provided an excellent, affordable service to more than thousands of houses over the years. We are committed to supporting our customers throughout the evaluation process, during the service itself and are available to answer any queries once the work is complete. We are a licensed and fully insured company aiming to respond to all requests involving our services within 24 hours or less. Our professional and knowledgeable staff have a combined experience of over 12 years within the construction, air duct cleaning, and landscaping industries, ensuring guaranteed satisfaction with every job. We pride ourselves in providing a safe, hazard-free environment and maintaining respectful, cordial communications with all of our clients. All technicians can be relied on to keep project sites clean both during and after the work is complete.

"Reached out to get our gutters cleaned. David was very responsive and offered a reasonable rate. Did the job quickly and thoroughly, sent lots of pictures and video of the finished work. Very satisfied, would definitely recommend"

Isaac D on October 2025


Avatar for R.Piro Electric, LLC

R.Piro Electric, LLC

4.89(
57
)
Approved Pro

R.Piro Electric, LLC

4.89(
57
)
Approved Pro
Super Service Award
Customers say: Quick response
10 years of experience
Free onsite estimate

R.Piro Electric, LLC, services Connecticut out of Trumbull. We pride ourselves on the dedication we have to our customers and the quality of work that we provide. Give us a call today! We look forward to working with you! We are a family run business and pride ourselves on our ability to communicate with our customers and develop a relationship that will last for a lifetime. Customer satisfaction is our priority, and we are willing to do whatever it takes to have you completely satisfied.

"They are professional, reasonably priced, and do very nice work. Highly recommend."

Casey F on April 2025

R.Piro Electric, LLC, services Connecticut out of Trumbull. We pride ourselves on the dedication we have to our customers and the quality of work that we provide. Give us a call today! We look forward to working with you! We are a family run business and pride ourselves on our ability to communicate with our customers and develop a relationship that will last for a lifetime. Customer satisfaction is our priority, and we are willing to do whatever it takes to have you completely satisfied.

"They are professional, reasonably priced, and do very nice work. Highly recommend."

Casey F on April 2025


Avatar for United Sewer & Water, LLC

United Sewer & Water, LLC

4.88(
148
)
Approved Pro

United Sewer & Water, LLC

4.88(
148
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
8 years of experience

With over 20 years of experience, we're dedicated to providing our clients with the very best emergency service and routine maintenance for their sewer & drain needs. We specialize in a variety of residential and commercial services such as: drain cleaning, hydro-jetting, video inspections, pipe repair/replacement and sewer clean-up. However, we take the most pride in our strongest attribute, customer relations. We take extreme precaution in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients and guarantee your satisfaction. "ONE DRAIN, ONE JOB, ONE SEWER AT A TIME!" - UNITED SEWER & WATER

"Tony from United Sewer & Water arrived on time and quickly cleared a bathtub drain that another plumber could not clear. Impressed by Tony’s expertise and professionalism. "

Atul C on August 2025

With over 20 years of experience, we're dedicated to providing our clients with the very best emergency service and routine maintenance for their sewer & drain needs. We specialize in a variety of residential and commercial services such as: drain cleaning, hydro-jetting, video inspections, pipe repair/replacement and sewer clean-up. However, we take the most pride in our strongest attribute, customer relations. We take extreme precaution in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients and guarantee your satisfaction. "ONE DRAIN, ONE JOB, ONE SEWER AT A TIME!" - UNITED SEWER & WATER

"Tony from United Sewer & Water arrived on time and quickly cleared a bathtub drain that another plumber could not clear. Impressed by Tony’s expertise and professionalism. "

Atul C on August 2025


Avatar for H L Bowman

H L Bowman

4.72(
387
)
Approved Pro

H L Bowman

4.72(
387
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
79 years of experience

HL Bowman has been in the same location for 38 years and owned by the same family for over 65 years. HL Bowman is a non commission based company. HL Bowman employees will never upsell you a product you don't need. Dennis and Bryan Enders and his family have deep roots in the Harrisburg community. After 65 years Dennis and family stay committed to giving the community the best possible service and product to fit their needs. HL Bowman has won Angie's List super service award every year.

"Exceptional service from the initial diagnosis to repair, superb team. I appreciated everyone's thoroughness, willingness and honest business tactics. They provided a safe environment for me to ask questions and we explored all options. Ultimately, Joshua, sealed the deal by being caring and understanding. His expertise showed but most importantly his work ethics and integrity was felt. Many thanks to the whole team Brett, Joshua, Jason and Peter delivered Top notch service. Lastly, the communication was A+. Loved receiving text messages with photo id's, true professionals. Highly recommend! You won't be disappointed!"

angela w on August 2025

HL Bowman has been in the same location for 38 years and owned by the same family for over 65 years. HL Bowman is a non commission based company. HL Bowman employees will never upsell you a product you don't need. Dennis and Bryan Enders and his family have deep roots in the Harrisburg community. After 65 years Dennis and family stay committed to giving the community the best possible service and product to fit their needs. HL Bowman has won Angie's List super service award every year.

"Exceptional service from the initial diagnosis to repair, superb team. I appreciated everyone's thoroughness, willingness and honest business tactics. They provided a safe environment for me to ask questions and we explored all options. Ultimately, Joshua, sealed the deal by being caring and understanding. His expertise showed but most importantly his work ethics and integrity was felt. Many thanks to the whole team Brett, Joshua, Jason and Peter delivered Top notch service. Lastly, the communication was A+. Loved receiving text messages with photo id's, true professionals. Highly recommend! You won't be disappointed!"

angela w on August 2025


Avatar for Extel Communications, Inc.

Extel Communications, Inc.

4.96(
37
)
Approved Pro

Extel Communications, Inc.

4.96(
37
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
38 years of experience

We're a local family-owned and operated business started in 1987 with hundreds of satisfied customers throughout Connecticut and New York. We install and maintain hosted-cloud and on-premise telephone systems and provide service for your existing telephone system. Additionally, we offer telco & cable company network services, troubleshoot WiFi issues including installing wireless access points for WiFi connectivity, install data, fiber and voice cabling, security cameras and computer networks. Contact us today for a no charge, no obligation survey for all of your telecom and data needs!

"Immediate response. Expert, knowledgeable work. Excellent customer service. Very reasonable price. Would hire them again without question."

Brian M on December 2023

We're a local family-owned and operated business started in 1987 with hundreds of satisfied customers throughout Connecticut and New York. We install and maintain hosted-cloud and on-premise telephone systems and provide service for your existing telephone system. Additionally, we offer telco & cable company network services, troubleshoot WiFi issues including installing wireless access points for WiFi connectivity, install data, fiber and voice cabling, security cameras and computer networks. Contact us today for a no charge, no obligation survey for all of your telecom and data needs!

"Immediate response. Expert, knowledgeable work. Excellent customer service. Very reasonable price. Would hire them again without question."

Brian M on December 2023


Avatar for Winners Sewer & Drain

Winners Sewer & Drain

4.98(
31
)
Approved Pro

Winners Sewer & Drain

4.98(
31
)
Approved Pro
Super Service Award
Customers say: Quality work
3 years of experience
Free onsite estimate

Winners Sewer & Drain is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Was great expiernece very educated person who knows what he is doing on top of that he is honest and will not steer you wrong reccomend highly !!"

steven m on September 2025

Winners Sewer & Drain is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Was great expiernece very educated person who knows what he is doing on top of that he is honest and will not steer you wrong reccomend highly !!"

steven m on September 2025


Rocco Kohut Electrical Installations and Repairs, LLC

4.87(
211
)
Approved Pro

Rocco Kohut Electrical Installations and Repairs, LLC

4.87(
211
)
Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
23 years of experience

Rocco Kohut Electrical Installations and Repairs, LLC, serves Fairfield County. I specialize in troubleshooting electrical problems and repairs. Other services include installations of fixtures,outlets and fans to general electrical wiring, we are here for your electrical needs.

"I needed a job done in short order and Rocco was extremely responsive and efficient. Very much so a no bull**** experience and I couldn’t be happier. HIGHLY recommend."

Thomas P on May 2025

Rocco Kohut Electrical Installations and Repairs, LLC, serves Fairfield County. I specialize in troubleshooting electrical problems and repairs. Other services include installations of fixtures,outlets and fans to general electrical wiring, we are here for your electrical needs.

"I needed a job done in short order and Rocco was extremely responsive and efficient. Very much so a no bull**** experience and I couldn’t be happier. HIGHLY recommend."

Thomas P on May 2025


Avatar for Gallery Of Kitchens & Baths

Gallery Of Kitchens & Baths

4.91(
47
)
Approved Pro

Gallery Of Kitchens & Baths

4.91(
47
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
35 years of experience

Gallery of kitchens specializes in interior and cabinetry design and has remodeling experience for over 40 years. We assist you in increasing the value of your home and creating a timeless look with a full service turn-key solution. We welcome homeowners, designers and contractors to benefit from our products and services with free consultation and design. Our showroom is full of many cabinet lines to choose from. Additional hours - Mon-Fri 9:00 AM-5:00 PM; Sat 9:00 AM-4:00 PM. 1027 Post Road East, Westport, CT. 06880 203-226-7550. Website. Galleryofkitchens.com. Email. [email protected]

"Great experience! The renovation that their crew did exceeded our expectations in every way. They were knowledgeable, efficient, and dedicated to delivering the highest quality. We love how the space looks now – it’s exactly what we envisioned!"

George L on January 2025

Gallery of kitchens specializes in interior and cabinetry design and has remodeling experience for over 40 years. We assist you in increasing the value of your home and creating a timeless look with a full service turn-key solution. We welcome homeowners, designers and contractors to benefit from our products and services with free consultation and design. Our showroom is full of many cabinet lines to choose from. Additional hours - Mon-Fri 9:00 AM-5:00 PM; Sat 9:00 AM-4:00 PM. 1027 Post Road East, Westport, CT. 06880 203-226-7550. Website. Galleryofkitchens.com. Email. [email protected]

"Great experience! The renovation that their crew did exceeded our expectations in every way. They were knowledgeable, efficient, and dedicated to delivering the highest quality. We love how the space looks now – it’s exactly what we envisioned!"

George L on January 2025


Avatar for Old Faithful Pump Co

Old Faithful Pump Co

5.00(
39
)
Approved Pro

Old Faithful Pump Co

5.00(
39
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
17 years of experience

We are an owner/operator company with 17 years of experience. We are committed to offering honest service and competitive prices. We use quality material and perform work to the highest standard to ensure longevity of the equipment you will rely on every day. We are a full service well pump & water treatment company offering 24 Hour Emergency Pump Service.We also offer water testing, water filtration, UV lights, water softeners and installation and service of water tanks.

"Joe is very experienced and very professional to replace my well pump, bring up the well cap to above ground level and installed house water filter. He discussed the job in detail and gave a fair quote. He came on time and did the job at high quality. He cleaned up everything before he finish. He took the 5% Angies list coupon as well. Will use him again and highly recommended if you need well pump service!"

Zeqiang G on September 2018

We are an owner/operator company with 17 years of experience. We are committed to offering honest service and competitive prices. We use quality material and perform work to the highest standard to ensure longevity of the equipment you will rely on every day. We are a full service well pump & water treatment company offering 24 Hour Emergency Pump Service.We also offer water testing, water filtration, UV lights, water softeners and installation and service of water tanks.

"Joe is very experienced and very professional to replace my well pump, bring up the well cap to above ground level and installed house water filter. He discussed the job in detail and gave a fair quote. He came on time and did the job at high quality. He cleaned up everything before he finish. He took the 5% Angies list coupon as well. Will use him again and highly recommended if you need well pump service!"

Zeqiang G on September 2018

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Subcontractors questions, answered by experts

Depending on your structure, you may not need planning permission. Major excavation, anything that changes the external appearance of your home, or any construction that will affect your neighbors will need planning permission. However, no planning permission is required if you’re just converting an existing space into a root cellar.

Maintain open communication and address issues as they arise, ensuring contract terms cover potential delays.

Most commercial projects take 3-7 days, including curing time, depending on size and weather conditions.

Yes, you can finance new construction using a construction loan or a construction-to-permanent loan, or you can use a home equity line of credit or a cash-out refinance if you’re building a second home. Some mortgagors may have restrictions on DIY house builds, so be sure to check that you can get financing before starting your project.

A contract should outline the scope of work, timelines, costs, payment schedule, and materials used for clarity and protection.

The Cos Cob, CT homeowners’ guide to subcontracting services

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