DeRosa Development Company

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DeRosa Development Company Welcome and thank you for visiting our page! Please send us a message for a no obligation, free estimate on your future project!
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We are a Veteran owned General Contracting firm specializing in custom homes, home remodels, home additions, and much more!

Jon just wrapped up this gorgeous new 4 season room with single garage under in Exeter for some awesome Clients. Yet aga...
08/25/2026

Jon just wrapped up this gorgeous new 4 season room with single garage under in Exeter for some awesome Clients. Yet again he knocked it out of the park. We are fortunate to work for great people that allow us to put our .02 in when we see a design opportunity that will set the room off. Jon proposed the wide pine floors with a white wash stain, and wow does it look amazing! Job well done!

05/14/2026
This 4 bed/3 bath farmhouse/colonial in will be coming to market late July, early August. Have land you want to sell? ...
05/14/2026

This 4 bed/3 bath farmhouse/colonial in will be coming to market late July, early August. Have land you want to sell? Is your lot subdivideable? We will handle all the leg work and cost to complete the subdivision, and pay you fair market value for your land. Send us a DM, email: [email protected], or call: 603.475.0397🇺🇸🏠

Homestretch on this beautiful new four season room in Exeter! We installed this beautiful new paver patio, tied the exis...
05/10/2026

Homestretch on this beautiful new four season room in Exeter! We installed this beautiful new paver patio, tied the existing deck into the new addition, and resurfaced it adding the rain escape system. Adding the rain escape system makes for some dry under-deck outdoor living! Another clean build for a fantastic Client! 👌🏻🇺🇸

Jon’s back at it, earning more 5 ⭐️! Jon is a Senior Project Manager with us, an is one of the best in the business! His...
05/09/2026

Jon’s back at it, earning more 5 ⭐️! Jon is a Senior Project Manager with us, an is one of the best in the business! His communication, and attention to detail is second to none. We are very fortunate to have him on our team! Thanks for the opportunity, and review Colin!

Homes are built from the foundation up.
04/11/2026

Homes are built from the foundation up.

03/11/2026

Tscon making way for a gorgeous new home we are building. This ones going to be a stunner!

PSA: With the rising temperatures, rain, and snow melt, the water table will be rising! Ensure the outlet to your perime...
03/08/2026

PSA: With the rising temperatures, rain, and snow melt, the water table will be rising! Ensure the outlet to your perimeter drain is free and clear of debris! This will help to prevent flooded basements, and crawl spaces!

This over sized garage with breezeway & light storage above tied into this families home perfectly. Some of the nicest p...
03/06/2026

This over sized garage with breezeway & light storage above tied into this families home perfectly. Some of the nicest people you could ever meet, and we were lucky enough to work for them! Thank you Medeiros family for the work, and the kind review. Enjoy your new space! 🙏

Address

Derry, NH
03038

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm
Saturday 9am - 5pm

Telephone

+16034750397

Website

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