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TRUSTED BY ITHACA, NY HOMEOWNERS

  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon24
    Verified custom home building reviews

Top-Rated Custom home builders in Ithaca - Updated Nov 2026

Avatar for MODERN BUILDING & CONTRACTING
MODERN BUILDING & CONTRACTING
4.0(
4
)
Find a Custom Home Builder

Serving Ithaca, NY and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"????? After another company came in and completely messed up our deck project, we were frustrated and unsure who to trust. Thankfully, we called Modern Building & Contracting, and honestly, we only wish we had found them first! James and Mike came out, listened to our concerns, and immediately put us at ease. From start to finish, they were professional, knowledgeable, and committed to doing the job right. The quality of their workmanship exceeded our expectations, and the finished deck turned out absolutely beautiful. My family and I couldn?t be happier with the results. It?s clear that they take pride in their work and truly care about their customers. If you?re looking for a reliable contractor who delivers quality craftsmanship and excellent customer service, we highly recommend Modern Building & Contracting. Thank you again, James and Mike?we love our new deck!"
6 neighbors recently requested a quote
ITHACO Builders LLC
4.4(
8
)
Find a Custom Home Builder

Serving Ithaca, NY and surrounding areas

In business since 2004

Free estimates

"Greenspun Building repaired my roof and built a beautiful 2nd story balcony deck for my home. Crow works in a manner that is both friendly and efficient. He took the time necessary to understand exactly what my home needed, and then shifted into high gear to get the job done promptly. It’s nice to know I can call Crow when I need a helping hand! - Cos Alpern (Homeowner)"
Response time6 hrs
Recommended by100%of homeowners
Avatar for Farr Construction Co.
Farr Construction Co.
5.0(
8
)
Find a Custom Home Builder

Serving Ithaca, NY and surrounding areas

In business since 1987

Emergency services offered

Roofing and construction services. More than 32 years of roofing and construction experience. We pride ourselves on providing exceptional service and ensuring peace-of-mind to each customer. Call to schedule your free estimate or learn more today!

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+2

Recommended by100%of homeowners
Avatar for WPP Building and Design
WPP Building and Design
3.3(
12
)
Find a Custom Home Builder

Serving Ithaca, NY and surrounding areas

In business since 2021

Credit card accepted

"They did an excellent job with painting the interior of our house. We had a really high wall in the stairway, and they had no problem getting to the top of it and did a great job! Would hire them again!"
Painting - Interior Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Additional Photos
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+9

Response time1 day
Response rate100%
Recommended by58%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Find a Custom Home Builder

Serving Ithaca, NY and surrounding areas

In business since 1971

Credit card accepted

"service provider sent by American Home Shield was excellent. The only issue I have with home warranty services is that they do not send their repair companies out on the week-end, even in an emergency. The customer service personnel is less than enthusiastic or helpful."
Additional Photos
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+2

Recommended by65%of homeowners
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Custom Home Builders FAQs, answered by experts

A-frame homes are on the smaller side. While there’s no set square footage amount it has to be, it will usually come in around 1,000 square feet or smaller.

Green homes are often more expensive to build, averaging around $200 per square foot compared to the $150 per square foot you’d spend to build a standard home. However, green homes can save you money on your utility bills by consuming less energy or creating energy using solar panels or wind turbines on-site. They’re more expensive to build, but they often end up costing less in the long run.

Local regulations dictate how big an ADU can be, and there may also be restrictions on the percentage of the main residence’s square footage an ADU can have. In most cases, an ADU must be smaller than the main residence, but check with your local building authority to confirm restrictions on ADU size.

A carriage house is a freestanding building, while a townhouse is connected to other units. A townhouse is a full single-family home and typically shares a parcel of land with other connected homes. A carriage house is rarely used as the sole single-family home on a property and is most often an additional building sharing property with a traditional single-family home. 

In most cases, you should get an architect before you hire a builder. An architect will be the one to draw up formal plans for your project, including guidelines and even material lists for your builder to follow during construction. Many architects can even help you find builders, choose one for your project, and negotiate prices. Some are also willing to act as project managers throughout the process, working closely with a builder from start to finish.

The Ithaca, NY homeowners’ guide to custom home building

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