Insulation in Jersey City, NJ
Spray foam insulation in Jersey City is the single most effective upgrade for the dense, attached brick row houses and brownstones that define The Heights, Bergen-Lafayette, and Journal Square. Homes built between 1880 and 1930 have solid masonry walls with no stud cavity, and the wind corridor off the Hudson River and Newark Bay drives heat loss through every unsealed penetration in the envelope. Most Jersey City insulation jobs run between $1,800 and $6,500 depending on scope, and every job starts with a written price before any work begins. Call (218) 261-7714 for a free estimate.
Why Jersey City Homes Are Different
Jersey City’s housing stock is the controlling variable in every insulation decision. The dominant building type is the two- to four-family attached brick row house, built between roughly 1880 and 1930, with solid masonry exterior walls, plank-and-beam or balloon-frame interior structure, and attic planes that often run continuously across three or four adjoined units with no fire-stop partition at the party wall. There is no wall cavity to fill, so fiberglass batts are physically irrelevant here. Wall work means interior rigid foam board, closed-cell spray foam applied directly against the brick, or injection foam through drilled holes.
The peninsula geography compounds the problem. Jersey City sits between the Hudson River and Newark Bay, and the constant wind off the water accelerates air infiltration through aging unreinforced masonry. In winter, a row house on Palisade Avenue loses heat measurably faster than an identical building in inland Kearny. In summer, the dense street grid traps radiant heat, and the flat or low-pitch roofs common on row houses drive significant cooling loads through the top floor ceiling.
There is also the knob-and-tube question. A substantial share of pre-1940 Jersey City row houses still have live knob-and-tube wiring in attic and wall cavities. New Jersey code prohibits burying active knob-and-tube under insulation, so any attic or wall upgrade in these buildings requires an electrician’s sign-off before insulation goes in. We flag this on the first visit. We do not insulate over live knob-and-tube, and we will not recommend a contractor who says it is fine.
Our Main Jersey City Services
Two services account for most of the calls we take from Jersey City homeowners: attic insulation and crawl space encapsulation. Both are shaped by the city’s row-house geometry and the moisture load from the surrounding waterways.
Attic Insulation in Jersey City
Attic work in Jersey City almost always starts with air sealing. Attic voids in The Heights and Bergen-Lafayette frequently span multiple attached units with no partition at the shared party wall, so blowing insulation over an unsealed attic floor simply pushes material into a neighbor’s space and does nothing for the conditioned envelope. We seal top plates, can light housings, and every penetration first, then install insulation to the specified R-value. Blower-door numbers are recorded before and after on every applicable job. See Attic Insulation in Jersey City for the full scope.
Crawl Space Encapsulation & Vapor Barrier in Jersey City
Jersey City row houses with crawl spaces sit close to the water table, and the humidity off the Hudson and Newark Bay keeps those spaces damp for much of the year. Encapsulation means sealing the floor and walls with a reinforced vapor barrier, sealing the rim joist, and controlling moisture at the source. It protects floor framing and keeps humid air from climbing into the living space. See Crawl Space Encapsulation & Vapor Barrier in Jersey City for what the job involves.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Spray Foam Insulation in Jersey City
Spray foam is the correct tool for most Jersey City wall work because the city’s solid-masonry row houses have no wall cavity to fill. Closed-cell foam applied directly against the interior face of the brick creates an air barrier, a vapor retarder, and an insulation layer in a single pass, and it is the only practical retrofit for balloon-frame walls that run open from basement to attic. In waterfront high-rises, spray foam is also the standard fix for slab-edge thermal bridging and air movement at unsealed mechanical penetrations. We install open-cell and closed-cell systems from proven manufacturers including Spray Foam Insulation materials from Johns Manville and Rockwool, selected per job rather than locked to one brand.
Open-Cell Spray Foam
Signs you need it
Top-floor rooms in a Jersey City row house that are consistently 8 to 12 degrees warmer than the floors below in summer usually point to an uninsulated or under-insulated attic plane.
What it costs in Jersey City
Open-cell spray foam in a Jersey City attic typically runs $1.80 to $3.20 per board foot, with most complete attic jobs landing between $2,400 and $5,200.
How we do it
We seal all top plates and penetrations first, then spray open-cell foam to the specified depth across the attic floor or roofline, followed by a blower-door test to document the change.
Closed-Cell Spray Foam
Signs you need it
Cold interior brick walls in winter, visible condensation on the inside face of exterior walls, or high heating bills in a solid-masonry row house indicate missing or failed wall insulation.
What it costs in Jersey City
Closed-cell spray foam runs $3.50 to $6.50 per board foot in Jersey City, with a typical single-wall retrofit costing $2,900 to $6,200.
How we do it
We apply closed-cell foam directly against the interior brick face or rim joist, building to the depth required for the target R-value and air-sealing the assembly in one pass.
What Spray Foam Insulation Costs in Jersey City
| Item | Typical range in Jersey City |
|---|---|
| Open-cell attic spray foam | $2,400 - $5,200 |
| Closed-cell rim joist spray foam | $900 - $1,900 |
| Closed-cell wall retrofit (single wall) | $2,900 - $6,200 |
Is spray foam safe for old brick row houses in Jersey City?
Closed-cell foam applied directly to solid masonry is standard practice in Jersey City and performs well, provided the brick is dry and the wall is not actively leaking. We inspect for moisture intrusion before any foam goes on.
Can you spray foam an attic with knob-and-tube wiring in Jersey City?
No. New Jersey code prohibits burying live knob-and-tube under any insulation. We require a licensed electrician to disconnect or replace the wiring before we spray. Call (218) 261-7714 if you need a referral.
Blown-In Insulation in Jersey City
Blown-in insulation is the fastest and most cost-effective way to bring a Jersey City attic floor up to modern thermal performance, but only after the air leaks are sealed. Blowing cellulose or fiberglass over an unsealed attic floor in an attached row house just pushes conditioned air through the top plates and can lights, and in shared attic voids the material drifts into a neighbor’s bay. We run Blown-In Insulation work in Jersey City with sealing first, every time, and the blower-door numbers show the difference.
Blown-In Cellulose
Signs you need it
An attic floor with less than 6 inches of settled insulation, or bare spots between joists, means the top floor is losing heat into the roof plane all winter.
What it costs in Jersey City
Blown-in cellulose in a typical Jersey City rowhouse attic runs $1,700 to $3,400, including air sealing of plates and penetrations.
How we do it
We seal all penetrations and top plates, build marker dams around the hatch, and blow cellulose to the depth required for the target R-value, then photograph the finished depth.
Dense-Pack Wall Insulation
Signs you need it
Rooms in a pre-1940 row house with plaster walls that feel cold to the touch in winter often have empty stud bays accessible only by dense packing.
What it costs in Jersey City
Dense-pack wall insulation in Jersey City typically costs $2.80 to $5.00 per square foot of wall area, with a full row-house wall project running $3,200 to $6,800.
How we do it
We drill small access holes through interior or exterior plaster, blow cellulose or fiberglass under pressure to fill the cavity, then patch and repaint the access points.
What Blown-In Insulation Costs in Jersey City
| Item | Typical range in Jersey City |
|---|---|
| Attic floor blown-in cellulose | $1,700 - $3,400 |
| Attic floor blown-in fiberglass | $1,500 - $3,100 |
| Dense-pack wall insulation (per wall) | $3,200 - $6,800 |
How long does blown-in insulation last in a Jersey City attic?
Cellulose and fiberglass both last 20 to 30 years before settling reduces their R-value enough to warrant a top-up. We measure current depth on every visit and record it in the photo log.
Can you blow insulation into a shared attic in Jersey City?
Yes, but the party-wall boundary must be sealed first. In attached rows without a partition at the attic plane, we build a containment dam at the property line before blowing. Call (218) 261-7714 for a written assessment.
Radiant Barrier Installation in Jersey City
Jersey City’s dense street grid and the flat, low-pitch roofs on its row houses trap a large amount of radiant heat in the top-floor ceiling plane from May through September. A radiant barrier mounted to the underside of the roof deck reflects that heat back out, and in an attached row house with no attic partition, the surface area involved is often larger than the owner expects. We install Radiant Barrier Installation only after the attic floor is air-sealed; a radiant barrier over an unsealed attic is a bandage on an open wound.
Attic Radiant Barrier
Signs you need it
Top-floor rooms that stay hot well after sunset in summer, or an attic that hits 130 degrees by mid-afternoon, indicate the roof deck is radiating heat into the living space.
What it costs in Jersey City
A radiant barrier in a typical Jersey City row-house attic runs $1,400 to $2,900, depending on roof geometry and access.
How we do it
We mount the foil-faced barrier to the underside of the roof deck or rafters with an air gap maintained, then verify attic temperatures before and after with the photo record.
Radiant Barrier Roof Deck
Signs you need it
In homes with finished attic living space, the only practical radiant barrier location is the roof deck directly under the roofing material, installed during a re-roof.
What it costs in Jersey City
A roof-deck radiant barrier in Jersey City adds $0.90 to $1.60 per square foot to a re-roofing project, typically $1,500 to $3,400 on a row-house roof.
How we do it
We coordinate with the roofing contractor to lay the barrier over the deck or between the deck and roofing material, then photograph the installation before the roof goes on.
What Radiant Barrier Installation Costs in Jersey City
| Item | Typical range in Jersey City |
|---|---|
| Attic radiant barrier (underside of roof deck) | $1,400 - $2,900 |
| Roof-deck radiant barrier (during re-roof) | $1,500 - $3,400 |
| Radiant barrier plus attic ventilation | $2,600 - $5,100 |
Does a radiant barrier help in a Jersey City winter?
Minimally. Radiant barriers target summer heat gain. The winter payoff in Jersey City comes from air sealing and conventional insulation. We scope the two together so you are not paying for a one-season fix.
Can you install a radiant barrier in an attached row house attic?
Yes, though the continuous attic plane across party walls means the barrier area may extend beyond your own unit’s footprint. We measure the actual plane and price it in writing before work starts. Call (218) 261-7714.
Insulation Removal & Replacement in Jersey City
Old Jersey City row houses carry decades of layered insulation work, much of it done without air sealing and some of it now contaminated by rodent activity in shared attic voids. Removal is the prerequisite for a clean envelope: we vacuum out the old material, sanitize the space, and only then install new insulation matched to the building’s actual geometry. For homeowners in The Heights and Bergen-Lafayette, Insulation Removal & Replacement is often the first time anyone has actually seen the attic floor since the building was constructed.
Attic Insulation Removal
Signs you need it
Compacted, wet, or rodent-contaminated insulation in an older Jersey City attic is doing nothing thermally and is actively degrading the air quality in the top-floor unit.
What it costs in Jersey City
Full attic insulation removal in Jersey City ranges from $1,600 to $3,400 for a typical row-house attic, before new material is installed.
How we do it
We run a high-volume vacuum from the attic to a sealed container outside, remove all old material down to the deck, then photograph the clean plane before any new insulation goes in.
Vermiculite & Old Insulation Removal
Signs you need it
Vermiculite in a pre-1990 attic may contain asbestos, and any disturbance releases fibers; in Jersey City’s older stock it shows up regularly in Journal Square-era buildings.
What it costs in Jersey City
Vermiculite removal in Jersey City, handled by a licensed asbestos abatement partner, typically runs $4,000 to $9,000 depending on volume and access.
How we do it
We seal the work area, coordinate with a licensed abatement contractor for the removal, and take over after clearance testing to install the new insulation system.
What Insulation Removal & Replacement Costs in Jersey City
| Item | Typical range in Jersey City |
|---|---|
| Attic insulation removal (typical row house) | $1,600 - $3,400 |
| Contaminated insulation removal | $2,300 - $4,800 |
| Vermiculite removal (licensed abatement) | $4,000 - $9,000 |
How do I know if my Jersey City attic has vermiculite?
Vermiculite looks like small gray or brown pebbles with a layered, flaky texture. If you see it, do not disturb it. We can sample and arrange testing, and we only proceed after results come back clean. Call (218) 261-7714.
Can you remove insulation from a shared attic in Jersey City?
Yes, but the scope must respect the property line. We isolate the work area at the party wall before removal begins, and we document the boundary with photos. Each attached unit is treated as a separate scope.
Attic Air Sealing in Jersey City
Attic air sealing is the prerequisite to every insulation job we do in Jersey City, not an add-on. The row houses in this city were built with balloon framing and no fire-stops, which means conditioned air moves through wall cavities and along the attic plane into the roof space all winter. We measure the leakage with a blower-door test, a pressurization reading that shows in one number how much air the building envelope is losing, then seal every penetration before any insulation is installed. This is the foundation of Attic Air Sealing work in Jersey City.
Attic Floor Air Sealing
Signs you need it
A top-floor apartment in a Jersey City row house that is drafty in winter despite closed windows and a warm thermostat usually has a leaky attic floor plane.
What it costs in Jersey City
Attic floor air sealing in a typical Jersey City row house runs $900 to $1,800, including the blower-door testing before and after.
How we do it
We run the blower-door test first to get a baseline CFM50 reading, then seal the attic floor at every top plate, penetration, and chase, and run the test again to document the reduction.
Can Light & Duct Boot Sealing
Signs you need it
Recessed lights in a top-floor Jersey City ceiling that feel warm in summer or show dust streaks around the trim are leaking conditioned air into the attic.
What it costs in Jersey City
Sealing can lights and duct boots in Jersey City typically costs $40 to $80 per fixture, with most full-attic jobs running $600 to $1,200.
How we do it
We seal each fixture from the attic side with fire-rated covers or boxes, then seal duct boots at the drywall connection and photograph every fixture as it is completed.
What Attic Air Sealing Costs in Jersey City
| Item | Typical range in Jersey City |
|---|---|
| Full attic floor air sealing (row house) | $900 - $1,800 |
| Can light and duct boot sealing | $600 - $1,200 |
| Attic hatch sealing and insulation | $250 - $500 |
What is a blower-door test and do I need one in Jersey City?
A blower-door test measures how much air your home leaks, in cubic feet per minute at 50 pascals of pressure. It is the only way to know whether your air sealing actually worked. We run it before and after every applicable Jersey City job.
Can you air seal an attic with knob-and-tube wiring in Jersey City?
Air sealing around live knob-and-tube is permitted, but insulating over it is not. We seal the floor plane while keeping all wiring accessible and visible, and we flag any circuits that need an electrician. Call (218) 261-7714 to schedule.
Wall Insulation in Jersey City
Wall insulation in Jersey City means working with solid brick, not stud cavities. The city’s pre-1930 row houses have masonry exterior walls that measure 12 to 16 inches thick with no cavity to fill, and the interior plaster is mounted on furring strips or directly on the brick. Standard batt insulation is not an option. We use injection foam through drilled holes, closed-cell spray foam against the brick face, or rigid foam board with a thermal break, depending on the wall assembly and the moisture profile. Wall Insulation work here is always scoped from the interior or exterior with photos documenting every step.
Injection Foam Wall Insulation
Signs you need it
Exterior walls in a Jersey City row house that feel noticeably colder than interior walls in winter are telling you the masonry mass is radiating heat out of the living space.
What it costs in Jersey City
Injection foam wall insulation in Jersey City runs $2.80 to $5.00 per square foot of wall area, with a full row-house wall costing $3,200 to $6,800.
How we do it
We drill small holes through interior or exterior plaster, inject the foam under controlled pressure to fill the space between the brick and the plaster, then patch and repaint.
Interior Wall Soundproofing
Signs you need it
In attached Jersey City row houses, sound traveling through shared party walls is a common complaint, and the fix is a dense insulation layer added to the interior side of the party wall.
What it costs in Jersey City
Interior wall soundproofing in Jersey City typically runs $3.00 to $6.00 per square foot, with a single party wall project costing $2,400 to $5,500.
How we do it
We build a new stud wall or furring layer on the party wall face, fill it with dense sound-control insulation, and reinstall the finish surface, sealing all edges first.
What Wall Insulation Costs in Jersey City
| Item | Typical range in Jersey City |
|---|---|
| Injection foam wall insulation (per wall) | $3,200 - $6,800 |
| Closed-cell spray foam wall retrofit | $2,900 - $6,200 |
| Interior wall soundproofing (party wall) | $2,400 - $5,500 |
Can you insulate the walls of a brick row house in Jersey City without tearing out the plaster?
Yes. Injection foam goes in through small drilled holes, and the plaster stays intact. We patch the holes flush and repaint to match, and the wall gets a continuous insulation layer behind the original finish.
Does wall insulation cause moisture problems in old Jersey City brick buildings?
It can, if done without attention to the wall’s moisture profile. Brick walls absorb and release water, and the wrong insulation can trap moisture inside the assembly. We inspect for existing moisture and choose the material accordingly. Call (218) 261-7714 for a wall assessment.
Attic Cleaning & Rodent Proofing in Jersey City
Jersey City’s attached row houses share attic voids and party walls, which means a rodent population in one unit rarely stays in that unit. The continuous attic plane across three or four properties is a highway for mice and rats, and once they are in, the droppings and contaminated insulation they leave behind become an air-quality problem for every connected unit. We clean, sanitize, and seal the entry points, then install new insulation only after the space is verified dry and pest-free. This is Attic Cleaning & Rodent Proofing work done in the order it has to be done.
Attic Cleanout
Signs you need it
Visible droppings, nesting material, or a musty odor from the attic access hatch in a Jersey City row house means the space needs a full cleanout before any insulation work.
What it costs in Jersey City
A full attic cleanout in Jersey City runs $700 to $1,600, depending on the size of the space and the volume of loose fill present.
How we do it
We vacuum out all loose and contaminated material, bag it for disposal, and leave the deck clean and dry, photographing the space before and after.
Rodent Proofing & Exclusion
Signs you need it
Scratching sounds in the ceiling at night, gnawed wiring, or entry holes at the roofline or party wall joints indicate an active rodent path into the attic.
What it costs in Jersey City
Rodent proofing and exclusion in Jersey City typically runs $800 to $2,200, depending on the number of entry points and the roofline geometry.
How we do it
We locate every entry point along the roofline, eave, and party wall intersection, seal them with steel mesh and foam where appropriate, and document the sealed openings with photos.
What Attic Cleaning & Rodent Proofing Costs in Jersey City
| Item | Typical range in Jersey City |
|---|---|
| Attic cleanout | $700 - $1,600 |
| Attic sanitizing and decontamination | $500 - $1,100 |
| Rodent proofing and exclusion | $800 - $2,200 |
How do rodents get into Jersey City row house attics?
Through the roofline, the eave edges, and the gaps at the party wall where one building’s roof meets the next. In attached rows, the shared attic plane means your neighbor’s entry point is effectively yours. We seal on both sides of the property line where access allows.
Do I need to clean the attic before you insulate it in Jersey City?
Yes, if there is contamination. Insulating over droppings or urine-soaked material seals the problem in and makes it worse. We clean and sanitize first, then insulate. Call (218) 261-7714 for a written scope.
Home Energy Audit in Jersey City
A home energy audit in Jersey City gives you the actual numbers: how much air the building is losing, where the thermal gaps are, and which upgrades will move the needle. For row house owners in The Heights or Journal Square, the audit often reveals that the attic floor is leaking more air than all the windows combined, which is why sealing comes before insulation in every scope we write. We use blower-door testing, thermal imaging, and a room-by-room inspection to build the Home Energy Audit report, and you get the documentation to keep.
Blower Door Test
Signs you need it
High heating bills in a Jersey City row house that persist despite new windows and a working boiler usually mean the building envelope itself is leaking air at a rate worth measuring.
What it costs in Jersey City
A standalone blower-door test in Jersey City runs $250 to $450, and it is included at no extra charge on every applicable insulation job.
How we do it
We mount the blower-door frame in the main entry, depressurize the house, and record the CFM50 reading, then walk the envelope with a thermal camera while the air is moving.
Thermal Imaging Inspection
Signs you need it
Cold spots on interior walls or ceilings in a Jersey City row house that do not line up with any visible gap or crack often indicate missing insulation inside a wall or floor cavity.
What it costs in Jersey City
A thermal imaging inspection in Jersey City runs $200 to $400 as a standalone service, and it is included with every full energy audit we perform.
How we do it
We scan the entire envelope with an infrared camera while the blower door is running, then mark every anomaly and photograph it for the written report.
What Home Energy Audit Costs in Jersey City
| Item | Typical range in Jersey City |
|---|---|
| Full home energy audit (with blower door and thermal imaging) | $450 - $800 |
| Blower-door test only | $250 - $450 |
| Thermal imaging inspection only | $200 - $400 |
Is a home energy audit worth it for a Jersey City row house?
Yes. Row houses leak air through party walls, balloon-framed cavities, and the attic plane in ways that are invisible without a blower door running. The audit tells you where the money should go, and you get the numbers to prove it.
Can you do an energy audit on a condo in a Jersey City high-rise?
Yes, though the scope is usually limited to your unit’s ceiling plane, exterior walls, and any mechanical penetrations. We coordinate with building management where access to the slab edge or curtain wall is required. Call (218) 261-7714 to discuss your building.
Brands We Service in Jersey City
We install and service insulation systems from Johns Manville, Knauf, CertainTeed, and Rockwool, matched to the job rather than locked to one manufacturer. Our Jersey City crews stock the most commonly specified materials for row-house and high-rise work locally, which keeps most projects moving without a supply delay. See our brands for the full list.
Pricing for Insulation in Jersey City, NJ
| Service | Typical range in Jersey City |
|---|---|
| Open-cell attic spray foam | $2,400 - $5,200 |
| Closed-cell rim joist spray foam | $900 - $1,900 |
| Closed-cell wall retrofit (single wall) | $2,900 - $6,200 |
| Attic floor blown-in cellulose | $1,700 - $3,400 |
| Dense-pack wall insulation (per wall) | $3,200 - $6,800 |
| Attic radiant barrier | $1,400 - $2,900 |
| Attic insulation removal | $1,600 - $3,400 |
| Attic floor air sealing | $900 - $1,800 |
| Injection foam wall insulation (per wall) | $3,200 - $6,800 |
| Attic cleanout | $700 - $1,600 |
| Rodent proofing and exclusion | $800 - $2,200 |
| Full home energy audit | $450 - $800 |
What pushes the price up in Jersey City is the building itself: attached row houses with shared attic planes take more time to isolate at the property line, knob-and-tube wiring requires an electrician before insulation goes in, and balloon-framed walls with no cavity demand more material and more access holes than a standard stud wall. Every job gets a written price before any work starts, and that price is what you pay unless the scope changes in writing.
Neighborhoods We Serve in Jersey City
We work across all of Jersey City, with most of our jobs concentrated in the dense row-house neighborhoods where the construction era creates the most specific insulation challenges. Typical response time from first call to completed written estimate is two to four business days, and we schedule based on the scope rather than the ZIP code.
- The Heights
- Bergen-Lafayette
- Journal Square
- Newport
- Paulus Hook
Service Area - Cities Near Jersey City
We serve all of Jersey City and the surrounding Hudson County and northern New Jersey communities. If you are in Union City, NJ, Bayonne, NJ, Newark, NJ, or Elizabeth, NJ, the same written-price standard and documented photo record apply. Dispatch and scheduling are coordinated from the brand’s New York City office, with crews serving Jersey City locally.
Serving Jersey City, NJ - Our Local Coverage Area
We’re based in the Jersey City area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Insulation in Jersey City
Most attic insulation and air sealing work in Jersey City does not require a building permit, but wall insulation that involves opening cavities or adding rigid foam to the interior face of an exterior wall can trigger the requirement. We confirm permit status before any work starts and handle the filing when it is needed.
First visits are typically scheduled within two to four business days. Emergency work, such as a rodent-damaged attic or water-soaked insulation, moves to the front of the schedule. Call (218) 261-7714 and a live person answers 24/7, no voicemail loop.
Yes. We regularly work in condo and co-op buildings in Newport, Exchange Place, and Paulus Hook, coordinating with building management for access to mechanical rooms, slab edges, and shared shafts. The written scope and photo record apply the same way they do on a single-family row house.
For a written price on any insulation or air sealing job in Jersey City, call (218) 261-7714. A live person answers, the estimate is free, and the price you get in writing is the price you pay.
What happens when you call
- 1A real person answersNo phone trees - talk to a local insulation pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3A background-checked tech heads outLicensed & insured, typically within 1-hour.
- 4You approve before work beginsNothing starts until you say go.
What Jersey City Customers Say
"Fixed price, clean work, and they hauled the old material away as agreed."
- Todd M."They photographed rodent damage in the old insulation that we had no idea about, and priced the exclusion work separately so we could decide."
- Harriet N."They air-sealed the attic floor before insulating and showed me the blower-door number before and after. The upstairs is finally the same temperature as downstairs."
- Marisol D.