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Find Addition to existing structure builders in Hollis

Avatar for iCornerstone, Inc.
iCornerstone, Inc.
4.9(
48
)

Serving Hollis, NH 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 time9 hrs
Response rate95%
Recommended by93%of homeowners
Avatar for MMP Construction Inc
MMP Construction Inc
4.7(
191
)

Serving Hollis, NH and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"We had a very small roof area need to be repaired. I sent request to multiple company to give a service quote. Few of them sent me replies and stated that they are too busy to come. Matt of MMP Consturction's contacted me promptly, scheduled an on-site visit and gave us a quote right away. The work was then scheduled and finished quickly. Matt did great job on reaching out, effective communication, and always arriving on-time. He also gave an evaluation on our roof condition. Also, Eric and Don did excellent job on finishing the project. They are all very polite, knowledgeable, and showed their professionalism. We would like to express our sincere appreciation to Matt and his crew. We are very grateful for having them arriving on-time before the winter storm to prevent potential damage of the house. From their react, we see a warm heart. No job is big or small, all jobs are equally important. Understanding the difficulties of others, for the people, been appreciated by the people. Thank you again for your high quality service. We definitively recommend MMP Construction Inc. to anyone for any related home project."
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+154

1 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Tejada's Remodeling Inc
Tejada's Remodeling Inc
5.0(
28
)

Serving Hollis, NH 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
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+6

Response time1 day
8 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for John Wrobleski
John Wrobleski
5.0(
17
)

Serving Hollis, NH and surrounding areas

Approved

Super Service Award Winner

In business since 1998

Free estimates

Warranties offered

"JWC builders are seasoned contractors. They do amazing work! They show up on time, and work throughout the day. The owner of the company, John Wrobleski, was always in contact with me, letting me know what was going on throughout the course of the deck building project. I have hired them for many other jobs as well and they always do an impeccable job! I will definitely hire them again for future projects!"
My Jobs
My Jobs
My Jobs
Our Work
Our Work

+2

Response time7 hrs
21 neighbors recently requested a quote
Recommended by64%of homeowners
O'Sullivan Construction and Property Management
5.0(
8
)

Serving Hollis, NH and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"We hired this company to remove old exterior window shutters and install new exterior window shutters. They were extremely responsive, prompt, friendly, reliable, and very professional. They were very easy to work with. We would absolutely recommend them without hesitation. We plan to hire them again for future projects."
Small back deck for grilling w french doors and sl
Before
Detail
Porch Swing and Fans
Complete

+70

Response time2 days
24 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for St. James Construction, LLC
St. James Construction, LLC
5.0(
5
)

Serving Hollis, NH and surrounding areas

Approved

Super Service Award Winner

Free estimates

Warranties offered

Customers say: Quick response

"Corey and his team are great to work with. He is a prompt communicator and is very organized. He also has a great attention to detail and ensures the project is perfect before claiming he is done. He is easy to work with and was able to make our ideas a reality. We have used him for several projects already and have him lined up for another. I highly recommend St. James Construction."
Additional Photos
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+7

2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Quality Construction
Quality Construction
4.6(
13
)

Serving Hollis, NH 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
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Additional Photos

+35

Response time2 days
3 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Ricci's Painting
Ricci's Painting
4.9(
19
)

Serving Hollis, NH and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Bruno and his crew are excellent. They did a great job painting my ceilings. I will be rehiring them again to paint other areas of my house shortly. Canâ t say enough good things about Bruno and his crew"
INTERIOR AND EXTERIOR
INTERIOR AND EXTERIOR
INTERIOR AND EXTERIOR
INTERIOR AND EXTERIOR
INTERIOR AND EXTERIOR

+121

Response time9 hrs
Response rate92%
6 neighbors recently requested a quote
Avatar for Freedom Framing and More, LLC
Freedom Framing and More, LLC
4.5(
13
)

Serving Hollis, NH and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"The project is underway and will be completed on time. Mathew is very personable and easy to work with. He has kept me informed about every step thus far. I’m looking forward to having our new space completed and ready to use."
Before
During
Wrapping up
Finished
Prep

+34

Response time2 days
Response rate95%
1 neighbors recently requested a quote
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FAQs for addition to existing structure building service projects in Hollis, NH

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 Hollis, NH 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.