Logo of Castle Builders

Castle Builders

  • 778 Elm St suite c, Milford, NH 03055
  • Residential Roofing
  • 24/7 Emergency Repairs
  • Financing Available
  • Free Estimates
  • Licensed & Insured
Hours
Mon7:30 AM - 9:00 PM
Tue7:30 AM - 9:00 PM
Wed7:30 AM - 9:00 PM
Thu7:30 AM - 9:00 PM
Fri7:30 AM - 9:00 PM
Sat7:30 AM - 9:00 PM
Sun7:30 AM - 9:00 PM

About the Business

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What people say about “Castle Builders”?

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Recommended Reviews

Overall Company Rating
Excellent 4.6
Out of 20 reviews
5 stars
4 stars
3 stars
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1 stars
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Evan Smith
Jul 18, 2025

I recently had Castle Builders replace a roof at one of my properties. Throughout the entire experience Derek and his team were incredible to work with. The quote process was fast and pricing was very fair and reasonable which was an important consideration for me. The house was built in 1870 and the existing roof was in terrible shape. Castle Building took great care in addressing all of the existing issues as they replaced the roof and did things the right way. I would highly recommend using Castle, you will not be disappointed!

Mary Brundage
Jun 24, 2025

Derek and team were very thorough, and accomodating. . They took a 3 season pitch down from one trailer and assembled it on mine. It was a tough job because they had to move aveeck and deal with raiding the trailer to make it work with the door of the camper. I would recommend castle builders for any job you need done. They were amazing and I’m very happy with the work they did

Daniel Legro
Dec 12, 2024

Derek & Castle Builders delivered on my basement renovation BIG TIME! Unfortunately, I have to give them a 5 star rating, only because 6 stars was not an option. I gave Derek my vision and plan and it was executed with precision, down to the most minute detail of filling nail holes underneath my stairs (ones that no one would ever notice). The carpenter was a true craftsman, professional and his work was top notch. Triple checked work, safe, and cut to maximize area. After they left I would often go down stairs and measure things four or five times with different instruments as if I were Sam Rothstein from the movie Casino.
All I found was that it was better than I imagined. The framework behind the walls gave me so much peace of mind and that is so important, knowing that the bones are sound. All the closet doors open and close smoothly and soft. The shelving is sturdy and perfectly spaced according to what I wanted. They were on time, professional, and took care of our property. Nothing ever went missing, our home was in great hands. The railing and trim work was so on point I couldn't think of hiring anyone else in the future. My stairs are now twice as strong, the stain work between the stairs, railing, trim work and custom sliding door are gorgeous and all match perfectly. If I ever asked Derek to go over something one more time, they did. Every door knob, light, outlet, etc is exactly where I wanted it and how I imagined it would be. My billiard room is classy and all I get is compliments. We actually had a pipe burst and it all got ruined, my basement flooded, the project needed to be redone. Derek had his team redo the basement and it came out BETTER! Castle worked with the insurance company and the town about permits that I needed. Derek is a great person and I've referred other people to him. I had him custom cut rails, billiard cue holders, and other things and everything is amazing. I asked Derek to pick out a storm door for me and he picked out a beautiful one and installed it himself. It is a great install, no leaks or leveling issues, it fits like an original puzzle. My project with Castle Builders was started two years ago and I forgot to write a review. I feel today just as though I did when I originally saw the finished product, like a kid at Christmas getting his favorite present. I wish I had more projects to hire him for because I know they would come out awesome. Equally important, Derek is a good person that is professional and relatable. Also, I know that my half basement renovation is a much smaller project than what Castle Builders probably typically does. I never felt as though I wasn't worth their time. Many contractors would dump a smaller project to take on the big one but that never happened to me. I was treated with respect and courtesy. Every person that he had at my home was professional and right for the job. Castle Builders isn't the most expensive builders out there, and they aren't the cheapest. If you hire the cheapest you will get what you pay for. Do yourself a favor and call Castle Builders so you don't shoot yourself in the foot. When I can take on a new project I am calling them back. Dan L, Amherst.

Daniel Ziarnik-Case
Oct 23, 2024

We are very pleased with all of the work we had done by Derek and his team. We had a hard time finding a contractor that would either return our calls for a consultation or even respond after doing a site visit. We met Castle Builders at the Home Show in Manchester and set up a consultation for our project.

We had purchased a previously flipped home in 2011 and have been making a list of things that needed to be redone or upgrades we preferred. Derek was on board for all of our ideas and worked with our insurance company for one of the repairs.

Derek's team was always timely, professional and respectful. We had a few asks on our end to work around including animals and my spouse works overnights. They were accommodating to both of these things and that made all the difference for us and streamlining the project as much as possible.

I've included a few photos. Derek's team took my boring red builder's grade kitchen and turned it into a kitchen we can be proud of. I unfortunately didn't take any before pictures of the deck and front stairs but the difference is amazing.

We are looking forward to working with Castle Builders for our next set of projects!

Diane H.
Mar 28, 2024

So far the experience has been wonderful with Derek. Construction to begin on our porch next week. He was so knowledgeable. polite and professional.
~~~~~~~~~~~~~
REVIEW UPDATED BELOW:
The construction on our porch and deck were completed on time and to exact perfection! I moved to NH 2 years ago and had such difficulty finding a company who would help us with our porch and deck work. Once I called Derek at Castle Builders all of my worries dissipated. He met with me, and more importantly, listened to me, and I received a professional quote within one business day! The work commenced within 3 days and was completed within a week. The job site was meticulously cleaned at the end of each workday. Mark was the highly skilled carpenter and brought my vision to an equisite reality...sheer carpentry genius. A portion of the work was to enable my disabled daughter to use our porch with safety and this was achieved beyond belief. Castle Builders truly cares about their customers and are sincere and honest. Communication was ongoing throughout the project which, as we all know, is utmost to achieve success. Brian (and sweet doggie Marta) completed the fine tuning and Brian was so personable as a bonus! Call Castle for all your needs and you will be so delighted and sleep peacefully.

Jessica Kapinos
Sep 8, 2023

After a burst pipe, Castle Builders helped to repair our kitchen/basement/garage. They were quick to respond and came in with a very reasonable quote. Derek was very communicative, great at helping us deal with the insurance company, and very easy to work with. Definitely recommend!

Richard Anderson
Aug 24, 2023

I had another company do my roof (Big Mistake) and when they pulled off my shingles they discovered I had extensive wood root from an Ice Dam... that company gave me Derek's number with Castle Builder's and I couldn't be more happy with how professional his entire team is...I was in a bind and many contractors would have taken advantage of that... not Castle Builders!

I have some other minor projects around the house I want to get done down the road and I plan on asking Derek and his team to do the work if they are interested.

If you need any roof work done, call Castle!

David Cloutier
Apr 16, 2023

I can’t comment to the quality of their work as I couldn't get them to keep an appointment. One occasion, a confirmed appointment had to be rescheduled because they could not plan properly. When I was informed of the need to reschedule very close to the appt. time, it was rescheduled for the following week. No call/no show on the new day. Project planning does not seem to be their strong suit.

Matt
Dec 19, 2022

We hired Castle Builders to build a Pool House and it came out great! The team was very responsive throughout the process (from the design phase to completion) and overall, a pleasure to work with!

Tom Green
Dec 7, 2022

We had called a company to have major cleanup from a water pipe that burst in February. They made fast work of the clean up and dry out. They referred Castle Builders for the rebuild. It was a major claim. They worked with us and the insurance adjuster. From the onset they were professional and timely. Being familiar with construction they listened to my concerns and how we wanted things to progress. Of course there are always changes but we were able to get things done. With just past Covid and materials being a challenge to get delivered they worked well with us and the contractors. I would recommend them for your work.

Dick Bickford
Nov 23, 2022

We got a reasonable quote for work we needed done on our old house. Brian and his helper exceeded our expectations in terms of finishing the job in an expedient manner, they cleaned up the work areas beautifully, they were very helpful and personable and the work is great! And in a pleasant surprise they did it all under bid. What’s not to love?
So glad we found Castle Builders.

Jana Petrikova
Dec 21, 2021

I hired Castle Builders to replace tiles in two bathrooms and fix the walls after having a leak. I needed the work on fairly short notice and maybe that is why they perhaps sent their worst workers. I will never hire this company again. One of the two guys always left early leaving his partner to clean up. The partner would talk to himself out loud complaining that he has to clean up on his own. How unprofessional! It is now two years later and bunch of the tiles in BOTH bathrooms are loose, the grout is falling out and I have to have it all redone. What a waste of money!

Mark Hermann
Aug 11, 2021

I can't say enough about the fast professional service I received from Castle Builders, the crew was so fast and knew exactly what to do. My representative was responsive and made me feel I had made the right choice. I would highly recommend them!

Marty Beecy
Jun 8, 2021

Castle fixed my platform at the end of my stairs from a fantastic basement renovation they did. I wanted them to redo the platform
which i wasn't satisfied with. They stood behind thier work and made ir right. They sent Arron back to get it done. He did a great job and was a really nice young man. All the guys that did the basement renovation were great!
Nice job Castle!

Melody Bergevin
Jan 21, 2021

Fabulous experience with these contractors. They had many crews who specialized in various areas to the quality of work far surpassed anything I could have imagined. They were also quick, extremely neat, and left my place sparkling. Very satisfied!

Lily Hunt
Oct 29, 2020

Castle is a fantastic company. They put on a new roof, gutters, some siding, and put in a window. Rob was a pleasure to work with and we are so happy with the outcome. We highly recommend this company, you will not be disappointed. Thanks again!!!

Justin O'Brien
Oct 22, 2020

I was very impressed with how professional and nice everyone was at Castle Builders, I would recommend them to anyone looking for construction work.

Lisa Grooms
Oct 6, 2020

I would highly recommend Castle Builders for all your remodeling needs. From the start EVERYONE I was involved with was Knowledgeable, Courteous and Friendly. They explained everything in detail as to what would be done and even gave suggestions when I wasn't sure which direction to proceed. They let me decide what was best for me. My remodel took a week and when I would come home they explained everything that was done and answered any questions I may have had. They cleaned up after themselves beyond what I could even imagine. My house looks absolutely beautiful! I can't thank Castle Builders enough!!!!

Bill D
Aug 21, 2020

We are very happy with the new deck Castle Builders did for us. Lester and Joe were great guys and a please to work with as was the entire Castle Team. We love the new deck! Thanks, Castle!

Austin Johnson
May 6, 2020

First time having Castle Builders come to our home, and they were wonderful to work with! Marcus came to our home to repair a siding issue. He was prompt, very professional, and honest. He carefully looked over our home and took care of any siding issues, even those we didn’t realize we had. Castle Builders was a great find, and I would highly recommend them!

Call us and get a quote right now Show phone number
137 locals recently requested a quote
  • 778 Elm St suite c, Milford, NH 03055
  • Residential Roofing
  • 24/7 Emergency Repairs
  • Financing Available
  • Free Estimates
  • Licensed & Insured
Hours
Mon7:30 AM - 9:00 PM
Tue7:30 AM - 9:00 PM
Wed7:30 AM - 9:00 PM
Thu7:30 AM - 9:00 PM
Fri7:30 AM - 9:00 PM
Sat7:30 AM - 9:00 PM
Sun7:30 AM - 9:00 PM

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