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!
Serving Somerville, NJ
Somerville'sAttic & Crawlspace Experts
Master Attic insulates and air seals attics, removes old or contaminated material, encapsulates crawl spaces and rodent proofs attics and crawl spaces across Somerville, New Jersey, whether your house is a Victorian built before the 1909 incorporation, a Cape Cod that went up on the east side decades later, or one of the newer townhouses downtown. Free estimates anywhere in Somerset County.
5.0 rated by 765+ homeowners on GoogleEverything Your Somerville Attic & Crawl Space Needs
Specialized solutions for a healthier, more efficient home.
Attic Services
Downtown Victorians and foursquares along Main, Division and West End Avenue mostly predate the 1909 incorporation, framed long before modern insulation existed. The Cape Cods and ranches that filled in the east side toward the hospital campus came later but still run thin by current standards. What today's building code calls for has climbed well past what most attics here were ever designed to meet.
Also in attic services: New Insulation InstallationBlown-In Attic InsulationAttic SanitizingBaffle VentsAir Duct Repair & Replacement
See All Attic Services
Squirrels chew wiring and tear up insulation once they get into an attic. We remove them and close the entry points.
Squirrel Removal →A raccoon can wreck attic insulation and ductwork in weeks and leave dangerous droppings behind. Safe removal plus repair of the damage.
Raccoon Removal →Bats roost in quiet attic corners and their droppings contaminate everything below. Humane exclusion plus full cleanup.
Bat Removal →Mice squeeze in through gaps the width of a pencil, nest in the insulation and leave droppings across the attic floor. Removal, then sealing the gaps so they stay out.
Attic Mice Removal →Wildlife tears openings where the roof meets the walls, and every gap is an open door. We seal the entry points and repair the damage.
Rodent Proofing →Thin, patchy insulation lets heated and cooled air escape into the attic all year. Upgrading it cuts energy bills.
Attic Insulation →Moisture in the crawl space feeds mold and rots the framing under your floor. Encapsulation seals out the damp ground air.
Crawl Space Encapsulation →New batts fill every joist bay edge to edge, so heated and cooled air stays in the rooms below instead of bleeding into the attic. Lower bills, even temperatures.
Attic Insulation →A vented ridge lets hot, moist air escape at the peak while baffles keep the soffit intake open. Balanced airflow protects the roof deck and keeps the new insulation dry.
Attic Ventilation →The roofline gap the wildlife used is sealed with rodent-proof mesh and sealant, along with every other opening we found. Nothing gets back in.
Rodent Proofing →Droppings, nesting debris and the contaminated insulation are gone, and the framing is treated so odors and bacteria do not linger in the air you breathe.
Attic Cleanup →A sealed vapor barrier covers the ground and walls, so damp soil air can no longer feed mold or rot the floor framing above it.
Crawl Space Encapsulation →What is going wrong here
- Thin, patchy attic insulation lets heated and cooled air leak up into the attic, and the energy bill pays for every bit of it.
- Warm air pours out through the roofline gap and the ridge instead of staying where it belongs.
- Squirrels, raccoons, bats and mice have moved in; droppings and nesting cover the attic floor.
- Damp ground air rises through the crawl space and feeds mold under the floor.
What changed
- Full-depth insulation keeps conditioned air in the living space where it belongs.
- Warm attic air stays upstairs and vents out at the ridge the way it should.
- Every entry point is sealed and the attic is cleaned and sanitized; nothing lives up there but insulation.
- The crawl space is sealed and dry, so ground moisture stays in the ground.
Built Around Somerville Attics & Crawl Spaces
Somerville is the seat of Somerset County, a compact, walkable borough where Main Street Victorians and foursquares built before the 1909 incorporation stand a few blocks from Cape Cods and ranches that filled in the east side decades later. Both eras left their attics and crawl spaces short of what current standards call for.
Victorian and foursquare attics from before 1909, and the Cape Cods that followed decades later, both fall well short of the depth New Jersey's current guidance recommends for an attic.
The Raritan River and Peters Brook both run through Somerville, and the stone-foundation cellars under the oldest downtown homes hold that dampness against the framing year round.
A century of weather has widened the gaps in the ornate cornices and soffits on older Victorians and foursquares around downtown Somerville, leaving squirrels, raccoons and mice a way onto the roofline.
Somerset County winters swing across the freezing mark for weeks at a stretch, and warm air leaking into an old Main Street attic feeds ice at the eaves.
What We Inspect
- Insulation depth & condition
- Air leaks & gap locations
- Ventilation & airflow
- Signs of rodents or pests
- Moisture & condensation
- Attic cleanliness & safety
- Crawl space access points

Our crews cover Somerset County daily. Free estimates, no obligation.
What's Going On In Your Attic?
Homeowners across Somerville, NJ usually call about one of these four issues first.
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.
Better insulation. Sealed gaps. Cleaner air. 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.
Proudly Serving Somerville, NJ & Surrounding Communities
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- Licensed & insured, NJ Lic. # 13VH09509100
- Crews in Somerset County daily, free estimates
- 5.0★ Google rating from 765+ homeowners
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Atlantic CountyBergen CountyBurlington CountyCamden CountyCape May CountyCumberland CountyEssex CountyGloucester CountyHudson CountyHunterdon CountyMercer CountyMiddlesex CountyMonmouth CountyMorris CountyOcean CountyPassaic CountySalem CountySomerset CountySussex CountyUnion CountyWarren CountySomervilleAlso serving homeowners near Somerville:
- Bridgewater Township
- Raritan Borough
- Hillsborough Township
- Manville
- Bound Brook
- Somerset
Frequently Asked Questions
How do you know if squirrels, raccoons or mice have gotten into a Somerville attic?
Scratching overhead at dawn and dusk, droppings scattered along the joists, chewed wiring and insulation torn into nesting material are the usual signs. In Somerville the entry point is almost always up at the roofline, through a gap that has opened in an old cornice or soffit on one of the downtown Victorians or foursquares, rather than anywhere near the ground floor.
How much attic insulation does a Somerville house actually need?
Somerset County falls under a regional energy code that expects considerably more depth than most attics here were originally built with. Exactly how deep yours should go is a question the inspection answers, not a chart. Most attics we open in Somerville, whether it is a Main Street Victorian or a Cape Cod near the hospital, are running well under what today's guidance expects.
Do winters here cause ice dams on Somerville roofs?
They do, especially on the steep original rooflines downtown. Somerset County winters cross the freezing mark repeatedly instead of staying cold, so warm air escaping into the attic melts snow from underneath and refreezes it at the eaves. Sealing the top plates, flue chases and ceiling fixtures before adding insulation is the step that actually keeps the roof deck cold and even.
What other Somerset County towns does Master Attic cover besides Somerville?
All of Somerset County, including Bridgewater, Raritan Borough, Hillsborough, Bound Brook, Manville and the Somerset section of Franklin Township just to the east. Our crews are already running through this part of Central Jersey most weeks, attics, crawl spaces and rodent work alike.
With Peters Brook and the Raritan both nearby, does a Somerville crawl space need encapsulation more than most?
Encapsulation is worth it more often than not this close to Peters Brook and the Raritan. The water table under downtown and West End stays high most of the year, and vented crawl spaces and older stone cellars both draw that dampness in, leaving floors cold and insulation sagging. A sealed vapor barrier over the ground and walls stops that moisture before it reaches the framing.
Will an attic job in an older Somerville Victorian take longer than in a newer house?
A Cape Cod or ranch on the east side typically goes fast. The Victorians and foursquares near Main Street can run longer, since their attics tend to have tighter access and are more likely to need old insulation hauled out or wildlife damage cleaned up first. We will give you a firm start-to-finish schedule before any work begins.
Can PSE&G or the NJ Clean Energy Program help pay for insulation work in Somerville?
Somerville is PSE&G territory. In past years the NJ Clean Energy Program has rebated insulation and air sealing upgrades, and since offerings change, so the best move is to ask us what is currently available when we come out for your free estimate.
Given the flood history near Peters Brook, is a Somerville crawl space still safe to encapsulate?
Not the work itself. We handle insulation, air sealing and crawl space encapsulation, not flood cleanup or water removal, so a crawl space needs to be dry before we start. Once it is, a sealed vapor barrier keeps everyday river-valley humidity from doing the same slow damage a flood does all at once, and it is worth asking about after any high-water event.
Attic & Crawl Space Tips
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How Does Insulation Work in the Summer? A Complete Guide
Insulation is not just for winter. Here is how the right insulation level keeps summer heat out of your rooms and your cooling bills in check.
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Attic and Crawlspace Winter Rodent Proofing Tips For New Jersey Homes
Mice and squirrels push into New Jersey attics every fall. These are the entry points we seal first and the signs to watch for.
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How Moisture in Your Crawlspace is Costing You Money
A damp crawl space drives up energy bills and feeds mold. Learn what the moisture under your floor is doing and how encapsulation stops it.
Read ArticleReady for a Cleaner, Safer, More Efficient Home?
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