Master Attic did a phenomenal job with our attic insulation and duct replacement. We had a loss from smoke damage from a neighboring fire and we were met with compassion and excellent customer service from Danny Jones and Jorge Diaz. We chose them for their quality of work, expertise and fair pricing and they got the job done promptly. Thank you for the excellent work and we will be recommending you highly!
Floor Joists · Rim Joist · Removal · Encapsulation
New Crawlspace Insulation in North Brunswick, New Jersey
Master Attic packs fresh insulation along crawl space floor joists and rim joists so cold, drafty North Brunswick, New Jersey floors actually hold heat, a fix that applies just as much to a young townhouse near the Main Street corridor as it does to a 1950s ranch in Maple Meade or Berdines Corner. Free estimates anywhere in Middlesex County.
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How We Install New Crawlspace Insulation in North Brunswick
New crawlspace insulation goes along the floor joists above an open or newly encapsulated crawl space, and it is often the difference between a cold, drafty first floor and one that actually holds heat. A crawl space with no insulation at all, or with insulation so old it has fallen out of the joist bays, leaves nothing between the ground-level air and the rooms above.
A ranch or cape carrying the crawl space floor it was built with back in the 1950s or 60s is among the most common jobs we run into, though newer construction along the Main Street corridor can be just as under-insulated if nobody ever brought it up to current standard. Floor age tells us where to expect a problem, not whether one exists.
We check the crawl space for moisture and the condition of any existing insulation before installing anything new, since wet or contaminated material generally needs to come out first and a vapor barrier often makes sense at the same time. The estimate covers what your specific crawl space needs and why, in writing, with no pressure to add more than the inspection actually calls for.
What Comes With New Crawlspace Insulation in North Brunswick
Six related steps that often go with insulating a North Brunswick crawl space. Every quote starts with a free look at the crawl space floor.
What North Brunswick Crawl Space Floors Are Missing
Here is what usually turns up once we get a tape measure into a North Brunswick, NJ crawl space.
A large share of North Brunswick's older crawl spaces were built with no floor insulation at all, just open joist bays over bare or gravel ground, leaving almost nothing between the floor above and the outside temperature.
Where insulation is present under a 1950s or 60s Maple Meade or Berdines Corner ranch, decades of ground moisture usually leave the original batts drooping out of the joist bays instead of doing their job, and drooping insulation insulates almost nothing.
An uninsulated or under-insulated crawl space is one of the more noticeable comfort complaints in a North Brunswick ranch or cape: floors near exterior walls stay cold well after the furnace has been running, because there is nothing under the joists to hold the heat in.
Some of the newest construction near the Main Street corridor has crawl space insulation installed to current code from the start, but not all of it does, and even code-minimum material from a few years back can leave a floor thinner than what a fresh inspection would recommend today. We can only tell you where your particular property stands once we have actually looked.
Our 4-Step Process
- 1InspectWe evaluate your attic or crawl space and find the real issues.
- 2RecommendYou get clear solutions and a detailed, honest estimate.
- 3InstallOur in-house crew gets the job done right the first time.
- 4GuaranteeWe stand behind our work and help keep your home protected.
Real Results. Healthier Homes.
Dry ground. Sealed walls. Cleaner air upstairs. Lower bills.
Hear What Our Customers Are Saying
Read Five-Star Reviews From New Jersey Homeowners
We just had our attic insulation replaced, and the entire experience was pleasant from start to finish. Robert is knowledgeable, honest and easy to work with at the initial estimate period. Roberta and his crew did a great job replacing the attic insulation for our house. They were very professional, efficient and respectful. They did everything that needed to be done and left the space clean and in excellent condition. I am very happy that I chose Master Attic and would highly recommend them.
Dan Jones and the Ronald crew did a great job from start to finish! I had original insulation in my attic with no electricity, not an easy job. Our upstairs was very hot in the summer and cold in winter. With having central air, we still needed AC units and space heaters to manage. Dan set up a great plan to eliminate that. He and his crew were able to come and finish the job shortly after we first met. They were quick, clean and managed to crawl into small spaces to remove old insulation and install fresh insulation. We have already noticed a major difference! Highly recommended!!
We hired Master Attic to clean out debris, mice, old insulation, and replace with new insulation in both our attic spaces. Roberto and his crew did a phenomenal job. They were extremely professional, polite, and did a fantastic job. They invited my husband to see the attic after each step, and took pictures on their phone to show me since I could not get up in the attic. They took the time to protect the space with plastic sheeting before the job up in the attic, and then cleaned up everything perfectly afterwards. I highly recommend them!
Great job by the team. Cleaned out the entire attic and replaced all the old insulation with new fresh insulation. Made a huge difference. Alex was great to work with and was very professional. Would highly recommend.
Awesome experience from start to finish. Rob provided a great assessment and capabilities overview, arrived on time and was very generous and thorough in explaining the work. I signed on the spot. A crew of six arrived (again, on time) and completely transformed our attic space - thoroughly cleaned out the old insulation (looked spotless afterwards), sanitized the space, sealed it/rodent proofed it, added baffles and of course, replaced the insulation and added more in areas that needed it. Completed the whole job in half a day and we are delighted with the result. Thank you, Master Attic team, for a job very well done! Highest recommendation.
What a great experience I had with this company and its employees. It started with initially interacting with Joe who came out for the estimate. He was funny because he came down from my attic and said "have you seen up there". I laughed because I had and I knew it was bad. He was no pressure and no nonsense. Gave me an estimate and said if I wanted we could have the work done next day. I wasn't ready for that but after some schedule juggling I told him we could be ready. Joe had his guys out next morning with the best part being Jorge calling me to advise he was about thirty minutes out. I appreciate when I am given a heads up as to ETA. Three of them arrived Jorge set out plastic and covered exposed furniture. Jorge, Angel and Gonzalo were all polite and worked hard to complete the task. They worked efficiently and were done quickly. Jorge made sure he included me in each step of the process and when I saw the finished product I was amazed. I can actually use my attic for storage if I choose to do so. I did not realize when they were here that they also do work on crawlspace areas. I will be calling them back to see what they can do for my crawlspace which easily rivals the diasaster called my attic. I recommend at least giving this company and its employees an opportunity to help you.
Great company to work with. From beginning to end, Dan came out, spent plenty of time with me going over everything that needed to be done, and the process of everything that needed to be updated it both attics. His professionalism was top notch, answered all my question and concerns. When it came time for George and his six-man crew to do the work their quality of workmanship was well above average, they were here the whole day, and I don't think they even had a lunch break (hopefully I don't get him in trouble). They all worked and everyone knew what their job was, they removed all the insulation, cleaned, spray foamed all holes and top plates, re-insulated both attics and cleaned up like they weren't even here. Will definitely use them again.
Master Attic remediated a bat issue for us back in October and I can’t say enough about what a wonderful job they did. The work was guaranteed and they encouraged us to call if we say any further evidence of bats. Well, there were a few droppings in the attic and they quickly responded to our concerns. Jose’s crew came out on a SUNDAY, inspected the attic, and sealed up several spots that could be entry points. They were professional, efficient, and kind. I would highly recommend them. You will not be disappointed.
New Crawlspace Insulation in North Brunswick: Questions We Get
Does every North Brunswick crawl space need new insulation?
Not every one, but a large share of the ones we inspect in the township's older sections do, especially where the original material has drooped out of the joist bays or was never installed to begin with. Newer crawl spaces along the Main Street corridor are less likely to need it, though builder-grade insulation can still fall short of current guidance. The inspection settles it either way.
Should the crawl space be encapsulated at the same time as insulating it?
Often, yes, particularly on North Brunswick's lower, slower-draining streets, because new insulation installed over a still-damp crawl space will not hold up as well as it would over a sealed one. We can quote the two separately if you would rather handle them in stages, but we will tell you plainly if we think one should come before the other.
Does NJ offer any help paying for crawl space floor insulation?
PSE&G's own programs and utility-backed rebate offerings statewide have both covered floor insulation work before, and this part of Middlesex County gets its electric and gas service from PSE&G. Exactly what is on offer shifts from one stretch to the next, so we will walk you through it while we are out for your free estimate.
My floors are cold but I don't think there's a crawl space problem otherwise. Could insulation still be the fix?
It is one of the more common causes, especially in a ranch or cape where the crawl space was never insulated to begin with. Cold floors can also come from air leaking around the rim joist or gaps at the sill plate, which is why we check the whole crawl space rather than assuming it is only about the insulation itself.
What determines which insulation product goes into a specific crawl space?
We look at the joist bay spacing, the moisture level in the crawl space and whether a vapor barrier is already down or being installed alongside it, since wet conditions change what material makes sense. What works well under a Maple Meade ranch is not automatically what a newer North Brunswick crawl space needs, so the recommendation is specific to what we find during the inspection.
What affects how long a new crawl space insulation job runs?
A crawl space's size matters less to the schedule than whether old material needs pulling first or encapsulation is happening alongside the install. A smaller ranch crawl space near Berdines Corner moves faster than a larger one that needs a vapor barrier and cleanup first. The timing is worked out during the inspection and put in writing with the estimate.
What other Middlesex County towns do you install crawl space insulation in?
Crawl space age and construction matter more to us than which town a property sits in, and Middlesex County keeps us busy well beyond North Brunswick alone, South Brunswick, New Brunswick, Milltown and East Brunswick included, plus a slice of neighboring Somerset County around Franklin Township.
Do you ever use anything besides batts on a crawl space floor?
Batts cover the large majority of the North Brunswick jobs we run, mostly because they fit cleanly between standard joist spacing and hold up whether the ground below is open or already encapsulated. The exact material and thickness that make sense for your particular floor get sorted out once we have measured the joist bays ourselves.
Ready for Warmer Floors in Your North Brunswick House?
Free inspection and a written estimate, no obligation.
- No Obligation
- Upfront Pricing
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Service area
New Crawlspace Insulation near North Brunswick, New Jersey
Not on the list? Call (800) 285-4009
- North Brunswick
- All North Brunswick attic & crawl space services Crawl space encapsulation Crawlspace insulation removal Rim joist insulation Attic cleanup Attic insulation removal Attic insulation Crawlspace & basement cleanup Raccoon removal Rodent proofing
- Nearby
- New Crawlspace Insulation in Somerset and Princeton Junction.
- Coverage
- All of Middlesex County and the towns around North Brunswick: New Brunswick, Milltown, East Brunswick, South Brunswick, Somerset and Princeton Junction. The full list is on the New Jersey service area page.


