C and J Windows and Doors, LLC

Great 4.9(136)
Great valueLicensed
  • 173 hires
  • Based in Williamstown, NJ
  • 23 years in business
  • 1 employee
  • Background checked
  • License verified

About C and J Windows and Doors, LLC

I’ve been in business for 23 years, specializing in residential windows and doors, as well as interior projects like trim, molding, and general carpentry. I personally sell and install every project, so there’s no middleman and no subcontractor you’ve never met showing up at your home. As a New Jersey licensed, bonded, and insured Home Improvement Contractor, I focus on quality workmanship at a reasonable price, with careful attention to detail on every job. Because I don’t use salespeople or subcontractors, I handle all calls and all the work myself. That sometimes means response times can be a bit longer, but I will always get back to you. If you’re looking for a straightforward, hands-on pro for your door, window, or interior project, I’d be glad to talk.

Reviews

Thumbtack customerNov 2026

I had the pleasure of working with John to install a new patio door, it was a pleasure. We talked through my needs for a door, I settled on the patio door that had the blinds built in. During the installation process, which was under 4 hours, John took great care to make sure my floor and outside area where he worked was covered and he cleaned up afterwards. I highly recommend this company for professionalism, quality of work and price. I am very pleased with the end result

Thumbtack customerSep 2026

Wound up going with another pro mostly due to scheduling lining up but he was friendly, professional and responsive and offered a free in-person estimate on the issue we were having. Would definitely reach out to him again.

Thumbtack customerJul 2026

The door were installed and look great. I have had work done before by others but nothing compared to this quality. I would give 10 stars if possible. i highly recommend and I will be using again for patio doors

Thumbtack customerJul 2026

Exceptional Entry + Storm Door Installation Hired for a new steel entry door and full-view storm door installation. Extremely impressed with the quality and service. He arrived early, worked efficiently, and the installation is flawless. Both doors are level, weather-sealed, and operate smoothly. The black hardware and clean trim work look fantastic. He was courteous, explained the process, and cleaned up everything before leaving. Great communication from start to finish. Fair pricing, reliable, and skilled. I highly recommend him for door installs and handyman work in the Sicklerville area.

Mary D.Jul 2026

He doesn't reply to messages, making it impossible to hire him.

Thumbtack customerJun 2026

Couldn’t have asked for a better first experience using the Thumbtack app and that’s all thanks to John! He responded to my initial request, sent me a quote, scheduled an appointment, and completed the job all in less than a week. I am so happy with the efficiency and quality of the work and will be contacting John again for future projects.

Thumbtack customerMay 2026

John replaced both of my den doors. He picked up the doors from Home Depot the day before he came to install them. The doors came out great. Highly recommended. This is my second time doing business with John. I’ll be having him replace my front entry door soon.

Tanya N.Dec 2025

John did an excellent job on my door. My door was warped, uneven and would not close fully. I bought this property with problems. This door was one of them. John not only fixed the door but also the insulation, frame and molding around the door but also installed a storm door. I was so pleased with his work. I highly recommend John.

Quan J.Dec 2025

I couldn’t be more impressed with the professionalism and experience of John. From start to finish, the entire process was smooth, efficient, and stress-free. He arrived on time, came fully prepared, and clearly knew exactly what they were doing. Every step was explained thoroughly, and their attention to detail was outstanding. The installation itself was done with precision and care, and the final result looks amazing. It is solid, secure, and perfectly fitted. It’s rare to find someone who combines skill, experience, and professionalism so seamlessly. I highly recommend their services to anyone looking for quality work done right the first time.

Kenny S.Dec 2025

He does not respond to messages and did not show up today

Michael B.Aug 2025

Patio sliding door installation. John does all his own work. No subcontractors. He shows up when he says he would. We are very happy with his work, and I recommend this professional for your next project.

Alma Z.Jul 2025

John was great with his response time and work quality. I inquired about replacing my back sliding door, John came out within a week and even came with us to pick up the door to ensure it was all correct! Definitely recommend John for any future services! Reasonable price and efficiently done!

Barry W.Jun 2025

Jon, punctual and installed the door with expert precision. Jon was also very professional. I am definitely go to call him again…

Sheena A.Jun 2025

Very please with the work John has done. Looking forward to more projects. Thanks again!

Leslie S.May 2025

Blown away! C & J Windows and Doors was top notch, beginning to end! We can’t be happier. Punctual, responsive, professional, honest, quality, thorough… he had it all! Definitely will use again and happily recommend to others! We LOVE our new door and thank you for your patience and expertise!

Romar M.Feb 2025

Did a good job on my door, very nice person. Highly recommended

Caitlyn F.Jan 2025

Really enjoyed meeting John. He was professional and informative. He installed French doors and closed up an opening of a wall in my new house. Both projects are flawless and was done with care.

Reth S.Feb 2024

John provided a solution for my two sets of French doors. The trim, wood around my doors were rotted and weather strips in need of replacing since these doors were installed 20 years ago. He provided a reasonable quote to replace the trims, cap the wood and install vinyl trim to both my French doors. He was professional day of work, installed and replaced everything faster than I expected and clean up after himself. I would highly recommend John’s work.

Jessica S.Jul 2022

We reached out to him about repair on our front door and he came out the next morning. Very friendly and informative.

Jeff H.May 2022

I can only wish that all of the individuals that I hire for various jobs in my home could be as professional and courteous as John with C and J Windows and Doors was for my recent repair. In my opinion reliability in terms of showing up when they say they will and completing the job correctly and in a timely manner is all you can ask for. John personified that. I would not hesitate to use him in the future and would recommend him to anyone looking for his expertise.

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C and J Windows and Doors, LLC★ 4.9
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