Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in Westford, MA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Addition to existing structure builders in Westford

Avatar for iCornerstone, Inc.
iCornerstone, Inc.
4.9(
58
)
Addition to Existing Structure - Build

Serving Westford, 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 MMP Construction Inc
MMP Construction Inc
4.6(
222
)
Addition to Existing Structure - Build

Serving Westford, MA and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"When we started our plan of remodeling, the first thing we did was the complete roof replacement including kitchen vent & duct pipe installation to the roof, and new installation of attic ventilation. MMP did not only completed it just as agreed but also very efficiently. The crews were friendly, professional, and careful. The jobs were carefully managed and implemented effectively. I was impressed by Matt, who is the manager, and he does an outstanding job in managing the crews and the progress of the situation, and the communication was clear and always to the point. We then moved to initiate a search for a contractor of two bathrooms remodeling after completing the roof and attic vent, MMP was one of the many candidates. Matt has had not only the best idea and proposals but also shown an impressive & professional sense of evaluating the project accurately, including the possible structural modification as well as a competitive estimate of the cost of the build. His proposal included a rebuild of a wall of the bathroom to expand another one adjacent to it. Matt accepted to use my schematic design image (made with a software tool) and a spreadsheet list of the fixtures that I created - as many as fifty items including TOTO, Grohe, American Standard, Panasonic, and IKEA - to start the job (later changed some of them due to local plumbing code compliance) After beginning the bathroom remodel project, Matt shared what jobs will be done with us timely and efficiently via text so that we feel comfortable enough in knowing what is going on while living in the house of dust & noise from remodeling. The crews, Zen and Mark, were very courteous, extensively experienced, reliable, and friendly with excellent communication, sometimes with songs of 80s rock music. They ask me when more precise specifications are needed and notified me when they feel advance notifications are required. When a change is necessary due to inspection, they informed me and clarified what and why. I have never felt uncomfortable in living together with the remodel job which has lasted over four months. The completed two bathrooms were stunning, just as I imagined. Matt, Zen, and Mark have proved their strong & thoughtful expertise and lived up with my request patiently until completion. Great job. A home remodeling project cannot be successful without having a trusted partner, and my experience with MMP has led me to be glad to share my confidence that MMP has a credential to become your reliable partner to manage a construction project together."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+154

1 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Strong Builders, LLC
Strong Builders, LLC
5.0(
54
)
Addition to Existing Structure - Build

Serving Westford, MA and surrounding areas

Approved

In business since 1988

Free estimates

Customers say: Quick response

"We hired Strong Builders to replace our carport and deck with a new 1-car garage and composite deck, and the results exceeded every expectation. The finished product truly blew us away — everybody that has seen it has commented "wow", including inspectors that look at these things every day. The garage turned out so beautifully, that we almost don’t want to park a car in it! We chose Jack because his pricing was competitive and his professionalism and attention to detail during the quoting process far surpassed his competitors. He was a pleasure to work with during design, offering thoughtful guidance and helping us make the right decisions for the project. Throughout the build, Jack was meticulous, kept the property spotless, and communicated clearly about his schedule and plans. His work ethic was remarkable — the amount he accomplished each day was impressive. We would recommend Jack and Strong Builders to anyone seeking top-tier quality, integrity, and true professionalism."
Rear Elevation
Great Room
Kitchen
Kitchen
Screened Porch

+123

Response time10 mins
Recommended by77%of homeowners
Avatar for O'Regan Construction
O'Regan Construction
4.5(
37
)
Addition to Existing Structure - Build

Serving Westford, MA and surrounding areas

Approved

Super Service Award Winner

In business since 1988

Free estimates

Customers say: Quick response

"Paul and Jay did an addition to our home. The addition included a bedroom, bathroom and deck. HVAC, Plumbing and electrical work was done as well. The work was top notch and the guys were professional during the process. They worked with us to design and plan all the necessary work. We could not be happier with the results."
Completed projects
Completed projects
Completed projects
Completed projects
Completed projects

+254

Response time2 days
16 neighbors recently requested a quote
Recommended by75%of homeowners
Duncan Builders
5.0(
8
)
Addition to Existing Structure - Build

Serving Westford, MA and surrounding areas

Approved

In business since 2003

Free estimates

Warranties offered

"Duncan Builders LLC I wanted to reach out to express my gratitude to Duncan Builders. On December 19, 2018. I signed a proposal to have Duncan Builders take care of the contract work and I needed to build at my salon. They moved a bathroom door from one wall to the next. Had their plumbers come in to create some plumbing through the floor into the basement and install a new water heater. All this was done to set up two free standing shampoo basins. Also completing the work with finishing trim. The team did an excellent job and was very punctual with the timeframe that was given to complete the work. I would highly recommend Duncan Builders for any of your commercial space build outs and other projects you may have. Extremely professional and I’m so glad that I chose them to be a part of creating my business. I couldn’t have done it without them and I’m so grateful for all of the good work that they did. Thank you again for helping me create my business Salon Artist. If there are any improvements that need to be made in the future. I will definitely be reaching out to Todd Wilkins of Duncan Builders LLC. Best, Christopher Kezik Salon Artist Owner"
Response time1 day
Response rate100%
7 neighbors recently requested a quote
Avatar for Tejada's Remodeling Inc
Tejada's Remodeling Inc
4.7(
31
)
Addition to Existing Structure - Build

Serving Westford, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"These guys did a remarkable job. They put in a full days work to make a pool deck that had long been neglected look like new again! I highly recommend them to anyone that needs power washing. They did not miss a spot! Really nice guys, hard workers, very respectful!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

Response time2 days
Response rate100%
9 neighbors recently requested a quote
Avatar for C P Construction and Carpentry
C P Construction and Carpentry
4.1(
47
)
Addition to Existing Structure - Build

Serving Westford, MA and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"CP construction and carpenrty did a great job building a new deck for my family. I was kept in the loop during the building process. Most importantly the price was right and great workmanship. I will use CP construction again and I highly recommend. Thanks again guys, from Nigel."
close up view of tile job on shower
remodel a bathroom
remodel a bathroom
remodel a bathroom
bathroom

+20

Response time2 days
2 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Men Construction
Men Construction
4.7(
27
)
Addition to Existing Structure - Build

Serving Westford, MA and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"I hired Teddy and his team a few months ago to demolish an existing deck that was rotting out and replace it with TimberTech Azek decking. As the pictures show they did an amazing job. Teddy and his team were very professional and responsive. In addition to great work they provided me with the best quote. I highly recommend Men Construction for your next home project."
2 neighbors recently requested a quote
Recommended by58%of homeowners
Avatar for Quality Construction
Quality Construction
4.6(
13
)
Addition to Existing Structure - Build

Serving Westford, MA and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"Phil coordinated and supervised the entire roof repair and shingling of our 200 year old house. He then stripped the clapboards to bare wood, replaced broken clapboards as well as soft wood behind some of them, before applying 3 coats of paint to the entire house. Phil told us up front that he took his time to do it right and would not be applying paint within three days of it raining., to ensure there would be no moisture under the paint. The work was done meticulously, with care taken to avoid any spillage or leftover material. I wish I could provide some photos to show his work!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+35

Response time2 days
3 neighbors recently requested a quote
Recommended by92%of homeowners
...
Showing 1-10 of 398
FAQs for addition to existing structure building service projects in Westford, 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 Westford, 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.