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

Avatar for Whitcomb and Holmes Company
Whitcomb and Holmes Company
5.0(
13
)
Addition to Existing Structure - Build

Serving Hanover, CT and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

"Whitcolm Holmes did an amazing job on my basement renovation; they worked closely with me, listening to my wants and needs, and completed the renovation within my expected timeframe. I will certainly use them again for future projects and happy to refer them to friends and family."
Quartz countertop
Farm sink
Custom black walnut vanity in 1/2 bath
New lighting fixtures and ceiling fan along with appliances. LVT for flooring.
New trim to accentuate the walls and new AV boxes to hide cords.

+27

Response time4 days
Response rate100%
Recommended by100%of homeowners
Avatar for Nova VC Construction & Cleaning
Nova VC Construction & Cleaning
4.8(
56
)
Addition to Existing Structure - Build

Serving Hanover, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2007

Free estimates

Emergency services offered

"Nova VC does great quality work with attention to detail. They are very professional, efficient and reliable. Their pricing is fair and competitive. I would highly recommend them for any home renovation project."
Before Open Concept Kitchen Remodeling
After - Open Concept Kitchen remodeling
Entertainment TV Stand
Entertainment TV Stand
Entertainment TV Stand

+17

Response time1 day
Response rate100%
2 neighbors recently requested a quote
Avatar for Fuery Development Group, LLC
Fuery Development Group, LLC
3.7(
20
)
Addition to Existing Structure - Build

Serving Hanover, CT and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"Really pleased with my new deck. The work was completed quickly and looks amazing. I wish they'd removed the leftover building materials but that's a minor thing. Definitely recommend"
New House Build - Plainfield
Knotty Pine Entryway
Projects and Home Builds
Projects and Home Builds
Deck - Final

+36

Response time6 days
10 neighbors recently requested a quote
Recommended by86%of homeowners
Sonart Construction Corp.
2.3(
7
)
Addition to Existing Structure - Build

Serving Hanover, CT and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"I recently had my shingle roof replaced and I?m very happy with the results. The team was professional, punctual, and completed the job efficiently. The quality of the work is excellent, and the new roof looks great. They kept the work area clean and communicated well throughout the process. I would definitely recommend them to anyone needing a roof replacement."
Avatar for A & W Carpentry
A & W Carpentry
4.9(
26
)
Addition to Existing Structure - Build

Serving Hanover, CT and surrounding areas

In business since 2007

Free estimates

Credit card accepted

"I met Wes on Angies list last year, so I'm a happy repeat customer, and I will call him again. This time I had some challenging upper kitchen cabenets that I started to do myself, and set up the first corner cabinet and said self, you'd better call Wes, (my 1920 house predates thstraight lines). They came out beautiful! Call Amy and Wes, you'll be happier than you expected to be.
"
Additional Photos
Additional Photos
Additional Photos
Recommended by100%of homeowners
Avatar for PL Mountzoures Contracting Inc
PL Mountzoures Contracting Inc
4.8(
30
)
Addition to Existing Structure - Build

Serving Hanover, CT and surrounding areas

In business since 1982

Free estimates

"Peter Mountzoures of all trades I really like utilizing the service of Peter because he is one of the few contractors that I felt confident in performing the work on my late parents’ home without me following up right away. In addition, Peter replaced two windows that were on the second floor with ease, razed an old building, replaced the roof on the main dwelling, and plowed my late parent’s driveway when I requested. Peter is trustworthy and very professional. I highly recommend employing Peter’s services."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Recommended by95%of homeowners
Avatar for Luxury roofing & Design LLC
Luxury roofing & Design LLC
5.0(
20
)
Addition to Existing Structure - Build

Serving Hanover, CT and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"Luxury roofing did a wonderful job on my roof and siding. We have them a deposit, they showed up got it all done in a timely fashion. Got it done quickly. Cleaned up everything after the job was done. Would highly recommend"
Wilson Project
Wilson Remodel
Parker Roof Replacement
Wilson Project
Wilson Remodel

+32

Recommended by100%of homeowners
One Stop Remodeling
4.5(
124
)
Addition to Existing Structure - Build

Serving Hanover, CT and surrounding areas

In business since 1982

Free estimates

Credit card accepted

"David Harris Painters did superb work at our home. Excellent repair carpentry and painting. They were highly professional and showed great craftsmanship and attention to detail.  They obviously wanted to do the best job possible, not just get the job done. We are very satisfied and would certainly use David Harris again.
"
This house had asbestos tile to be removed, rotted clapboard to be removed, several framing and insulation repairs, and reproduction moulding created on site and installed.
After work
reproduction trim
BEFORE
AFTER

+1

Recommended by84%of homeowners
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FAQs for addition to existing structure building service projects in Hanover, CT

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 Hanover, CT 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.