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Top-Rated Addition to existing structure builders in Jamaica Plain - Updated Nov 2026

Avatar for WR Builders, Inc
WR Builders, Inc
5.0(
130
)
Addition to Existing Structure - Build

Serving Jamaica Plain, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2007

Free estimates

Warranties offered

"WR Builders Inc. was a pleasure to work with on our home addition project. The team was professional, reliable, and the quality of the work was excellent. They completed the project on time, and the final result exceeded our expectations. We highly recommend them for any construction needs."
kitchen
Exterior of the House
basement bathroom
Custom Home
Powder room

+156

Response time1 day
Response rate100%
4 neighbors recently requested a quote
Avatar for iCornerstone, Inc.
iCornerstone, Inc.
4.9(
58
)
Addition to Existing Structure - Build

Serving Jamaica Plain, MA and surrounding areas

Approved

In business since 1988

Customers say: True professional

"For our home addition/renovation we are very grateful to have found Richard Connolly and his site iCornerstone. Our vision was a Two-story + basement + livable attic space home addition which would provide significant practical square footage to our existing house and integrate seamlessly with it. We interviewed a number of general contractors but we were overall a bit uncomfortable after the interviews due to gaps in transparency regarding how costs were calculated and how timelines were established, resulting in some lack of confidence. We happened upon Richard’s iCornerstone site via Angies. Richard provided an extremely transparent and detailed description of his unique and practical process, which delivered a set of superb designs along with a truly logical, transparent, and honest listing of costs, both materials and labor, at all stages, and how those costs were derived. Richard also delivered transparency on timelines, and he provided recommendations for all the needed tradespeople that he had historically a close working relationship with; alternatively we could have selected tradespeople of our own choosing. Richard and his process gave us the utmost confidence for proceeding. We proceeded with our renovation under Richard’s guidance and his own crew and the entire process went according to plan with excellent communication, rapport, and confidence at all stages from excavation to final finish work. Transparency, confidence-building, dependability, highly knowledgeable, customer-friendly, and results-oriented are all terms we would use to describe Richard and the iCornerstone process. We strongly recommend Richard for anyone contemplating any home renovation or home addition, large or small."
Entertainment center
Entertainment center
Architectural details
computer room left
computer room right

+11

Response time8 hrs
Response rate100%
Recommended by91%of homeowners
Avatar for The Curtice Group
The Curtice Group
4.6(
143
)
Addition to Existing Structure - Build

Serving Jamaica Plain, MA and surrounding areas

Approved

In business since 1992

Free estimates

Warranties offered

"The Curtis Group was hired to Design, Contract Manage and build an addition as well as remodel Kitchen, replace roof and paint both exterior and interior of main house and addition. Both Eric and Scott and their entire Team were excellent to work with."
Finished Basement & Renovated Bathroom
Kitchen Expansion & Remodel
Renovated Kitchen with Island
AFTER:
Full Kitchen renovation with island
We removed the wall separating the Kitchen and Living room we created an open floor plan.

+203

Response time2 days
Response rate100%
2 neighbors recently requested a quote
Avatar for SILMAC Construction Inc.
SILMAC Construction Inc.
4.8(
219
)
Addition to Existing Structure - Build

Serving Jamaica Plain, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Free estimates

Warranties offered

"SILMAC construction recently added a custom door and set of windows to my garage. The work was very good and I highly recommend them as a personal contractor. The job only took a few days to they did an excellent job."
Final
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

Response time6 hrs
1 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for D & R Construction
D & R Construction
4.7(
31
)
Addition to Existing Structure - Build

Serving Jamaica Plain, MA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"The extension of the deck was solidly built and matched with the old deck perfectly. The cat enclosure (or catio) was a work of art and my cats love it! To see it go to "Jeana's Dirty Dog Salon" in Cambridge where a picture is posted. Great work..."
Response time4 days
Response rate100%
Recommended by89%of homeowners
Avatar for D & S Partners Construction
D & S Partners Construction
5.0(
42
)
Addition to Existing Structure - Build

Serving Jamaica Plain, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Emergency services offered

"I am extremely happy with the painting and carpentry work done by D&S. The workers came every day and worked long hours to get the job done. Not only did they do a great job but they were pleasant and courteous as well. I would not hesitate to hire them to do additional work for me and I have already referred D&S to others."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+9

Response time6 days
7 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Neary Construction
Neary Construction
4.8(
174
)
Addition to Existing Structure - Build

Serving Jamaica Plain, MA and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"Any construction can be stressful, but with Liam and his team I was in good hands. I had some upgrades to one bathroom and a tub to shower conversion in the master bathroom. Liam was clearly very knowledgeable, and his workmanship in both bathrooms was impeccable. He answered all my questions, had great suggestions and was very responsive whenever I needed to contact him. The demo in the master was completed in a day, and the guys cleared everything after they finished. The tile work was meticulous and just beautiful. I highly recommend Liam Neary Construction."
After a little framing is done we start closing up the walls
Another view of recess cabinet and vanity cabinet
This is the Bathroom before demo
Tiling done before final fixtures got installed
Corner shelves

+27

Response time1 day
Response rate100%
3 neighbors recently requested a quote
Avatar for New England Carpentry Inc
New England Carpentry Inc
4.9(
50
)
Addition to Existing Structure - Build

Serving Jamaica Plain, MA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"We could not be happier with the work Gil and his team performed. The porches look amazing. We originally were just going to have the porch repairs done but were so happy with the work done we added on the lattice They were prompt and professional. The price was exactly what was agreed upon and the work was completed on schedule. We will have Gil back in the spring for some additional work. Highly recommend New England Carpentry LLC. These guys are great!"
Response time1 day
Response rate100%
3 neighbors recently requested a quote
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FAQs for addition to existing structure building service projects in Jamaica Plain, MA

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

The Jamaica Plain, MA homeowners’ guide to addition to existing structure building services

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