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Find Garage builders in Brentwood

Avatar for Exterior Team Home Services, Inc.
Exterior Team Home Services, Inc.
5.0(
22
)

Serving Brentwood, NY and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"We have a two story home in Patchogue that had a leak that resulted in water in the walls of our attached garage. We could not locate the cause of the leak. We contacted Exterior Team Home Services who quickly located the source of the leak which required us to replace the front roofing of our house. It was done very quickly at a fair price. We were also impressed on how they made sure the old roofing material did not get into our front lawn or plants. They were meticulous in the way they treated our property. A job well done."
Roof in process
Roof done
Roof in process
Job done in Ronkonkoma
Job done

+1

Response time4 hrs
Recommended by95%of homeowners
Avatar for Cocos Custom Building LLC
Cocos Custom Building LLC
4.8(
8
)

Serving Brentwood, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Warranties offered

"We hired Coco’s Custom Building on 2 separate occasions. We needed our roof redone and later decided to hire them to replace a dozen windows in our home. The owner Keith provided us with a great quote each time and was able to schedule the work right away. Any questions or concerns I had were addressed immediately which made the renovation go smoothly. I would definitely recommend Coco’s Custom Building and look forward to using them with my future home renovations."
Exterior Remodel
Modular Set And Exterior Finish Project
Exterior Remodel
Modular Set And Exterior Finish Project
Exterior Remodel

+31

Response time12 hrs
12 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Arthur DeRosa Building and Remodeling
Arthur DeRosa Building and Remodeling
5.0(
12
)

Serving Brentwood, NY and surrounding areas

Approved

In business since 1986

Free estimates

Customers say: Quick response

"I can't recommend enough this contractor. They exceeded our expectations in every way. Arti gave recommendations that made the process smooth and did everything and more we asked. Project was completed on time and within the budget that was quoted. We found our contractor for many projects in the future. A+++"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+20

Response time2 days
5 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Granville House Victorians L.L.C.
Granville House Victorians L.L.C.
5.0(
1
)

Serving Brentwood, NY and surrounding areas

Approved

In business since 2005

Free estimates

Credit card accepted

The linkedin site will tell our Story.\nClients will take advantage of Granville's in house Design capabilities with CAD.\nsee granvillevictorians.com for examples of our work

rose gardens"ChristmasCT"
rose gardens"ChristmasCT"
rose gardens"ChristmasCT"
432 East ave. Riverhead
side with caboose

+12

Response time5 hrs
Recommended by100%of homeowners
Avatar for AJC Designs Construction Inc
AJC Designs Construction Inc
5.0(
33
)

Serving Brentwood, NY and surrounding areas

In business since 1985

Free estimates

Warranties offered

"Artie from AJC was extremely professional and showed up each time for all our meetings exactly when he said he would. He was very easy to get along with and was willing to work with you and be flexible. This was important when planning such a large project. Due to personal reasons, we ended up not moving forward with the project at the time. However, based on our experience in the planning stages with Artie, I would encourage others to give him a chance for their project."
Recommended by100%of homeowners
Avatar for Crisvalih Home Remodeling Inc
Crisvalih Home Remodeling Inc
5.0(
144
)

Serving Brentwood, NY and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"Cris and his crew did an awesome job on our complete bathroom remodel. First Cris provided some great guidance during the planning, where we used pretty much all of his recommendations that turned out to be spot on. Cris also did everything he promised, and a bit more, on time (actually finished a little early), and always got approval for items that were outside of our agreed to budget. I also really appreciated the fact that he always kept me updated on progress, and respected our home during the construction phase (cleaned up every day), kept all tool and equipment in an organized space within our garage. Cris is a real pro and I will definitely be using him again for an upcoming kitchen project we are planning."
Recommended by99%of homeowners
Avatar for Valeri Construction
Valeri Construction
4.8(
111
)

Serving Brentwood, NY and surrounding areas

In business since 2012

Free estimates

Warranties offered

"John & team were terrific. John was super responsive and accommodating with scheduling. The finished project looked great and my wife and I were very happy with the price quoted. Would hire again, no question."
Recommended by94%of homeowners
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FAQs for garage building service projects in Brentwood, NY

A well‑constructed, properly permitted detached garage adds between $12,000 and $36,000 to a home’s resale value. Buyers appreciate the secure parking, extra storage, and flexible workspace, so appraisers often bump the property’s value accordingly. The exact return depends on the garage’s size, finishes, and how well it matches the main house, but most homeowners see a strong ROI when the build meets local codes and passes inspection.

Yes—once it meets local building codes and you secure the proper permits, a detached garage can be converted into living space. Finishing the interior, adding climate control, and ensuring safe egress effectively increase your usable square footage, though it may not always count toward the official listing. Skipping permits can trigger fines and even force you to undo the work, so always clear plans with your city first.

Most homeowners policies cover a detached garage under the “other structures” provision, but coverage limits vary. Review your declarations page and ask your agent how much protection you have for separate structures. If the limit is lower than the garage’s replacement cost, you can raise it for a modest premium. Confirming the details now prevents headaches if you ever need to file a claim.

The Brentwood, NY homeowners’ guide to garage building services

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

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