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A
"Highly impressed with this provider. Quick response after purchase on Angie's list and easy phone set-up of appointment time. Insulation professional who came" to my home was pleasant, thorough and professional. We were fortunate enough to not need insulation, but he did provide solid "do it yourself" tips on some areas we could save energy. Also kind enough to provide recommendation for HVAC providers. Would definitely recommend this group to others, happy I contacted them from Angie's List.

-Erin B.

A
"Some initial confusion on bid when job started. We settled on adjusting the price upwards. Company claims they still took a loss on the job due to confusion over" square footage in the attic. I was at ease with adjusting the price of job. Final cost was below the highest bid I received. House had little or no insulation to start with. Open cell foam was installed in the attic and closed cell foam was applied under the floors above the crawl space. Job took acouple of days, crew was responsive as to my questions and very good as to clean up and attention to detail. I am happy with the results and would use them again. Foam insulation is quite expensive but appropriate for use in this climate and in older houses. I do not like your alpha rating system, because it lends itself to inflation of value. I would prefer a 0-100 numeric system. Given such a system, I would have rated
at 91 or 92 of 100 on the price, slightly higher values on the other criteria presented. No one gets 100.

-Sarah B.

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Local Articles in Concord

Avoid ice dams with proper attic insulation

Do you have icicles forming on your eaves and gutters and ice collecting on your roof? An ice dam can cause serious problems without proper insulation.

Even in cold-weather climates, homes often lack insulation between the finished, occupied portion of the home and the ground. (Photo courtesy of Angie's List member Paul B. of Bluffton, South Carolina)
Insulation, Energy Efficiency Auditing

Exterior foundation insulation is an often overlooked home improvement. It can help stop drafts, lower energy bills and keep your house warmer during winter.

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Contractors say homeowners with this trait are the most satisfied with home improvement projects.

With insulation technology always advancing, you’ve got choices to make when it comes to the material you pick, says Lindus. (Photo courtesy of Angie's List member Lynn M. of Columbus, Georgia)
Insulation

Thinking of installing your own insulation? One highly rated provider shares six things that every homeowner should be aware of before attempting to DIY.

Before winter arrives, ensure your attic is sealed properly and has both adequate insulation and ventilation. (Photo courtesy of member Kitty Jones of Columbus, Ohio)
Insulation, Heating & A/C, Roofing

A comfortable, energy efficient home starts at the top. Those hot spots and cold rooms may relate to problems in your attic. Beyond adding insulation, what's a homeowner to do?

Angie's Answers

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Google and read about it. Some people swear by it, though their comments sound suspiciously like they were all written by the same person. Some call it a rip off - expecially people paying $6000-8000 for what would normally be a $1,000 range job.

I would not call it an outright fraud as they are providing a product that has some potential merit in the right application, but from a technical standpoint it sounds suspicious. They claim a 1/4 mat with doiuble sided foil facing is R-16 insulation. This at least is deceptive - they appear to be saying its radiant heat reflective properties give the equivalent of R-16 insulation, because there is NO WAY 1/4" foam is going to yield R-16 in an ASTM test for insulation, which is a thermal conductivity test. Would be lucky to get R-2 or so as an insulator, so this is basically a radiant barrier. Competing products from national brandname manufacturers list R value of 3.8-4.2 for one inch mats, so the equivalent for this 1/4" mat would be expected to be in the R1 range.

Properly installed, with ventilation on BOTH sides, it can be slightly effective in reducing radiant heat loss from the house, and more effective in reflecting heat in the attic from coming down into the house. However, from a thermodynamic and vapor control standpoint, they are trouble unless their integration into the house envelope is designed VERY carefully. Short explanation:

1) for keeping heat in the house, if they are installed above the attic floor insulation they can slightly limit air loss through the ceiling, and reflect radiant heat back down, resulting in warmer insulation, hence a warmer ceiling - but not as marked an improvement as added insulation would give.

2) for keeping attic heat from getting into the ceiling, they do reflect back a good portion of the radiant heat coming from the roof sheathing. This reduces the attic floor insulation surface temperature, so can reduce air conditioning cost. it does increase teh temperature in the attic, which can be very bad for support timbers and the roof sheathing.

3) the worst thing about how this type of foil radiant barrier is used is that, unless it has free air space on both sides, it acts as a vapor barrier. In the typicall application as a blanket over attic floor insulation, it traps any moisture coming up from the house, and can cause mildew and rot, especially in climates where the outdoor temperature gets quite cold.

4) the attic fans are generally a last resort measure - the normal house does much better, at no energy cost, using ridge vents with adequate eave openings to provide ventilation and cooling in the attic.

5) their effectiveness in winter heat diminshes rapidly with time - tests of attic radiant barriers show they lose about half their effectvieness within 5 years, because even a light dust coating greatly reduces their ability to reflect radiant heat, and greatly increases the absorption of heat from the hot air above them.

6) pay attention to cost - from what I see, their installed cost is many times the cost of normal insualtion or radiant barrier placement.

I would say, in summary, buyer beware, and I would be inherently leery of a product being sold the same way timeshares and "secret" moneymaking schemes are.

?

Obviously this is not a timely response to the initial question. However, for those who may be reading these answers at a later time, a couple of added thoughts:

1) the radiant barrier being discussed is basically heavy-duty metal foil or metallized surface on a plastic sheet, intended to reflect RADIATED heat (infrared radiation - think heat light, or heat you can feel at a distance radiated from a fireplace), the same way a mirror reflects light. Radiated heat is how a standard oven broils and how steam and hot water baseboard heat predominately work.

2) you generally should do NOT place a radiant barrier over the insulation that lies between and over the joists in a normal attic, especially in a region where the attic temperature can frequently reach condensation temperature (below about 45-50 degrees) - it may reflect back some of the house heat that is coming up from the house, but by destroying most of the temperature gradient from the house to the attic air destroys much of the driving force that moves moisture to the attic air and subsequent venting. Between that greater heat and the fact the barrier is also a moisture barrier, that makes a perfect condition for mold and rot in your insulation and attic wood, and has become quite an issue in energy upgraded homes because of retrofits that cut off airflow outside the insulation, but do not cut off the moisture source leaking thorough from the house. The proper and ONLY place for a vapor barrier in a normal attic insulation system is on the pressurized and normal warm, humid side of the insulation zone - directly above the ceiling drywall in the top floor, fastened to the UNDERSIDE of the ceiling joists or trusses, NOT anywhere above that. Perforated barriers are supposed to reduce this tendency, but the perforation area percentage is so small that typically they still act as a vapor varrier, just not a totally effective one.

3) radiant barriers reflect radiated heat ewith up to 99% efficiency but have basically zero resistance to CONDUCTION (body to body heat transfer at points of contact - think heat transfer from your warm hand to a frozen cold drink can, or hot pavement heat transfer to the bottom of your feet) - so there needs to be an air gap between the radiant barrier and the hot item passing the heat to it, otherwise the heat will just pass through it by conduction. Therefore, applying it directly to the sheathing (above or below) or manufacturing it directly on the surface of the sheathing defeats its purpose, even though this is commonly done.

4) there is a lot of discussion, particularly in the professional design community, about attic radiant heat barrier effectiveness and problems. Because they are being installed on the bottom of the sheathing or underside of roof joists, they act as a heat trap for the energy being conducted through the roof which would normally radiate into the attic air or be transferred by CONVECTION (fluid flow heat transfer) to the attic air, and be vented through roof vents, ridge vents, gable vents, etc. By trapping that heat, they are causing the underside of the shingles and particularly the felt and sheathing to get a lot hotter than they otherside would, essentially changing it from a system where the shingle top surface might reach 120-180 F and the inside surface of the sheathing about 80-140F in the summer, to making the entire roof system equal to the outside surface temperature. This causes more rapid shingle deterioration and cracking, and makes the felt or plastic moisture barrier under the shingles brittle and subject to failure.

Also, any moisture above the radiant barrier (from roof leaks or humid air coming into the area) is prevented from evaporating by the attic airflow which would normally remove it, so it starts acting like a steamer. I have seen both wood and metal lofts and attics become a major mold farm in months because of this effect, and a couple of roofs which started sagging due to rotted sheathing within 2 years of reroofing with tightly adhered radiant barrier. Some radiant barriers are vapor-permeable to reduce the moisture issue, many are not, but few actually are effective in letting moisture freely escape.

Having seen these products in use, and having analyzed and specified building products for use from the Middle East to the Arctic for decades, and having a Masters in Arctic Engineering (a degree predominately in energy conservation and heat flow), my personal opinion is that these radiant barriers will be banned by code within 10-15 years for unheated (so-called "cold" roofs) roofs, because they just do not use the principles of thermodynamics correctly. For more info on this issue Google the following search phrase  - moisture trapping by radiant attic barriers       and read the government (not the manufacturer) literature on the issue.

5) Unfortunately, the right way to handle this issue is to put the radiant surface on the OUTSIDE of the house - by using reflective materials on the roofing material. This is already done with flat roofs, house trailers, and industrial structures by spraying with alumiunum paint, and a few brands offer reflective aggregate shingles that are slightly more reflective and radiant than normal shingles. People obviously do not like this reflective surface from an aesthetic standpoint, though with solar cells coming into more general use this may soon be more widely adopted. The idea should be to keep the solar energy from penetrating into the building envelope at all, not try to re-reflect it away after it has penetrated throguh the roof system.

The sprayed-in foam has a couple of issues you need to be aware of:

6) it needs to be the low-pressure expanding type mixed for use around window frames, as fully expanding foam can bow joists or trusses and pop drywall ceilings free as it expands, and non-expanding foam actually shrinks as it cures, leaving gaps for air and heat flow alongside the ceiling joists.

7) being closed-cell it is essentially impervious to moisture, so the vapor barrier on the house side has to be EXCELLENT (incuding sealingof all penetrations), or it will trap household moisture escaping into the attic and promote mold and rot in the ceiling drywall and joists.

8) it tends to bleed chemical fumes into the house for a long period of time (can be noticeable for years), which may be objectionable to some people from an odor or environmental standpoint, and especially should be considered if any residents have severe allergy issues or respiratory problems.

9) I emphatically recommend AGAINST use of sprayed-in foam between ceiling joists or truss members in any area that can have cold attic air that could cause moisture condensation in the insulation, though this is probably not a significant problem where you live, assuming your Dallas is the city in Texas. For essentially year-around air-conditioned homes in hot climates, the problem can actually be condensation of attic air moisture on and in the colder ceiling surface insulation and on cold attic runs of air conditioned air, so attic ventilation becomes a critical issue to remove the moisture before it condenses.

In summary, having seen an awful lot of attic moisture and thermal problems, my personal recommendation would be to ensure excellent sealing of the house from the attic, use normal UNFACED fiberglass insulation, and instead of a radiant barrier ensure adequate full-attic ventilation. If you decide to got with a radiant barrier, then I would recommend a perforated one, sloping up towards the sides a foot or two and stopping a foot or so clear at the sides so moist air under it can escape to the roof joist spaces and be vented from the attic. I have seen this done several times with a fine nylon net strung above the insulation in the attic, supporting the barrier, resulting in something very similar to the double-roof system used in bedouin tents, where airflow between the two layers keep the hot air away from the living space.

?

A couple of comments about what Jim said:

1) Regarding type of insulation, in cold winter environments: Cellulose and fiberglass are actually about comparable in R value when installed - blown in cellulose runs from 3.2-3.8 R value, fiberglass batt 2.9-4.3 R value depending on manufacturer and whether hig-density or low density, high-efficiency or standard, according to official Department of Energy publications. Measured values in attic test cases, in areas with a true winter, after 10 years showed a decrease from 3.4 (in the test case) down to 2.1 for cellulose, and 3.5 to 3.3 for fiberglass batt, due to packing or matting. In an attic environment, there WILL be condensation or frost on the insulation at some point during the year (assuming an area with true winters) and in highly insulated houses commonly for a substantial time period each winter. Fiberglass packs down slightly from that weight but mostly rebounds, cellulose packs down and mats and does not substantially recover, so over the years cellulose loses 1/3 to close to 1/2 its insulation value, fiberglass about 10%.

2) a note on radiation barriers attached to the bottom of the rafters - there are a lot of installers and homeowners making two major mistakes with this product that can cause major trouble: First, be sure to terminate it short of the eave openings. I have seen cases where it was carried all the way out to the fascia board, thereby blocking all airflow on the underside of the roof. Even carrying it all the way to the eaves along the bottom of the rafters will block off ventilation to the main attic area. You have to leave the air space between the rafters open to full airflow from the soffit/eave area ot the ridge vent. Second, do NOT run it continuous from eave to eave across the full width of the attic - leave a gap about a foot wide under the ridge vents so warm and moist air in the attic can vent through the ridge vent. Closing the ridge vent area off with the radiant barrier effectively puts a vapor barrier around the main attic area, causing retention of the moisture which WILL accumulate there, promoting mold.

?
Steve made a good point.  Also, while it isn't required to remove the old insulation you can check the ductwork, wiring, etc. with the old stuff removed,  You can also spray foam around all openings and holes in wall top plates to better seal your home as Steve was pointing out.  My concern is the potential for mold spores you mentioned in your question.  If you suspect there are any get a good company in to remove the old and clean the attic.  Another concern is asbestos.  Your home is old enough you could have it in there and that's worse than mold if released into the air.

Todd Shell
Todd's Home Services
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Insulation reviews in Concord

A

Rating
I gave a C for cost because the original price of $299.00 quoted on Angie's List was what a handyman quoted to fix the problem. I really don't have anything else to compare it to. The men who came where very polite, got to work and fixed the problem.
- THELMA G.
A

Rating
Best experience I have had with a contractor and I have had many experiences.
Concord Insulation Contractors Provider Name Locked
, Sergei and
Concord Insulation Contractors Provider Name Locked
were polite and professional. Even with a man down for 2 out of the 3 days, they managed to get all the work done as planned on time. Was receptive to questions, explained thoroughly so homeowner can understand what they were doing. Met all our requests. The only issue was the front office wrt customer experience. Would definitely recommend them for any insulation work. Price was comparable to 4 other quotes received. 2nd floor seems well insulated now, can feel the difference. As for the ice damming one one side of the roof, this was not completely addressed with the insulation however, Dmitry explained why, there were no sofits installed therefore insulation did as much as possible to prevent but we do notice the ice damming is not as bad as before.
- Kyong R.
A

Rating
Outstanding experience. I have a pretty large house they came in did everything professionally, no mess, cleaned up afterwards. They stay in contact to make sure everything is ok. You cannot ask for a better team of professionals to work with. I truly enjoyed having them here.
This is the second job they have done for me. First was a Solar Power Water Heater - works great! The Spray Foam was a larger task of course but they came in showed me where I was loosing air etc. My electrical bills were 400 dollars plus per month, the attic was just way to hot.
My electrical bills are way lower - average of 50% cheaper than before. I am saving money. The house is cooler and more comfortable. I put thermometer in the attic and it barely goes above 79 degrees in the summer. This is my first winter and I can say the house is also staying more comfortable as well without the heater kicking on and off.
In Short - Electric Bills are lower, house is comfortable and we love it.
Concord Insulation Contractors Provider Name Locked
/ Dr Energy Saver you guys are the BEST! Keep up the great work! You have a Customer for LIFE!
BOO-YAH!
- Kevin B.
F

Rating
Lack of common business practices in failure to return calls. It appears that if work is done it is usually satisfactory, at least from the other reviews here, but no call returns are very aggravating.
- Penny G.
B

Rating
In the end it worked out okay. We did have some scheduling issues with them. The inspector stayed in touch with me, since we didn’t need the job done right away. He came and did the initial assessment; but we didn’t need very much work done. There was nothing more to pay for the insulation. It was hard to then get a crew out to come do the work; we had 2 missed dates, but it finally got done. The insulation made a difference and one room that we had insulated is now warmer in the winter; So it worked out well.
- Michael M.
A

Rating
They completed an attic and roof-line assessment. The man who came out arrived on time and was polite. He was very helpful and answered all of my questions. He was thorough and did not rush through the inspection. He had everything he needed to complete the inspection. They gave me a wonderful estimate. He even followed up with me through email regarding a product we had suggested for me. Over the holidays, a family member offered to assist us with the work. Had this not happened, we probably would have hired the company to complete the work.
- JOHN N.
A

Rating
They're more expensive than other people, but they know what they're doing. They're top notch. They're wonderful. They're the best.They deal quickly with issues. Their people are very good about, you know, you know who's coming over and all this other stuff. I feel like before we ran into them we threw away some much money with other companies before then. We just really like them. They came in to do the whole house assessment. The people who we had hired ten years earlier had left a two and a half to three feet wide hole in our attic. We live in a three level house and they separated the upstairs from the two bottom floors. All those 10 years, we were air conditioning and heating our attic because we were pulling stuff from our upper attic. We didn't even know it. But
Concord Insulation Contractors Provider Name Locked
. sealed our house up so nicely. They're top notch. They don't quit a problem until they get it resolved. They're great. They may not be the best price in town, but you know it will be done right. They're worth it, to me. We really like them. We enjoy any of the workers they send out. we've had some weird things happen, like rats getting into the air conditioner. You know it, it's happened and these guys are just great at fixing them. we've been using them for a long time and have loved everything they've done.
- Jane P.
A

Rating
Concord Insulation Contractors Provider Name Locked
and his son was very professional. Offered suggestions on inexpensive energy efficient minor projects. Very timely, neat and polite.
- lillie M.

All Insulation Contractors in Concord, NH

Companies below are listed in alphabetical order. To view top rated service providers along with reviews and ratings, Join Angie's List Now!

Atlas Glen-Mor

295 Eastern Ave

Aureli Construction

707 Winthrop St.

B&A Construction LLC

341 SIlver Lake Rd
Hollis

CJ Renovations

38 Blue Hill Ave

Classic Metal Roofs LLC

264 Gleasondale Rd

Clean Planet

1069 Main St. Suite 321

CTM Renovations

84 Highgate Rd

Custom Climates HVAC LLC

PO Box 1245
Merrimack

Custom Concepts

PO Box 845

Custom Contracting

1267A Massachusetts Ave

D & R Construction

52 Berkshire St

Dudley Services Inc.

1 Garfield Circle

E Cox Construction

383 Highland St

e+ Home Solutions

47 Third St Ste. 300

east side safety

Hope Artiste Village

ENERGY EGGHEAD

39 CEDAR ST

Energy Improvements, Inc.

PO Box 4085
Concord

Enviro Staffing Solutions

530 Broadway # 12

Environmental Spray Foam

644 Washington Ave.

Express Roofing

16 Jonas Rd

Exterior Touch Inc.

12610 Waverly RD.

F&W Pest Control

357 Worcester Rd.

Fiore Contracting

38 Roosevelt Rd

Gpconstruction

Tallant Rd
Merrimack

Granite Roots Construction

132 New Hampshire Drive
Concord

Green Stamp Insulation

184 Riverview Ave

Handyman911

9 Gabrielle Drive
Hudson

Hanover Hill Insulation and Siding

724 E Industrial Park Drive
Manchester

HERGON DESIGN INC

188 LINCOLN ST

Home Valet, Inc

PO Box 1182

HomePro Services Inc

27 Revolutionary Rd

HomeWorks Energy

15 Henshaw Street

Jackson Insulators, Inc.

100 Page Road
Litchfield

Jason Hutchinson

71 Mozart St.

JJ Construction

23 Hazelwood St

King Remodeling

720 Hall St

Kinney Roofing Co Inc

1065 Hanover St
Manchester

Kivley Enterprises

29 Lancaster Rd
Hampstead

MARCH & MARTIN

16 WINTER ST

Marco Polo Construction

121 B Tremont St.

Marotto construction

160 Eddy Rd
Manchester

MASS Home Services

44 Fox run rd

Mattos Co

15 Waite Ct

Modern Pest Services - Newton, MA

1203 Washington Street

Mold Doctors

572 Rte 28

Moonworks Home Improvement

1137 Park East Dr.

More Than Able

20 Meserve St

National Energy Audits

169 R Merrimac St

National Lumber

112 HIGH ST
Concord

National Lumber

25 CENTRAL ST

New England's Level Contractors L.L.C.

45 W. Mitchell St
Manchester

New Hampshire Exteriors

50 Pinewood Rd
Suncook

NEWPRO

26 Cedar St

Next Step Living®

21 Drydock Ave

Prado Painting

37 Audubon Rd

Pro Insulators

71 Maple St

PRO-CARE INC

3 N MAPLE ST

Property Pro Restoration

1000 Mt Laurel Cir

Pros Home Services Inc

449 Boston Post Rd E

Prudential Remodeling

1 Westview Terr
Pelham

Quality Insulation

110 Perimeter Rd
Nashua

R.M.C. SERVICES

31 POPE ST

REMODCO, INC.

Heights Rd.
Concord

Remodel Boston

516 East Second Street

RemodelWerks

621 Main Street

RENAISSANCE CARPENTRY

44 WILLIAMS ST

Rescon Basement Solutions

3 Commercial Ln
Londonderry

SALEM VINYL SIDING LLC

46 Herrick Cir
Pelham

SAM ROSARIO CONSTRUCTION

141 SOUTH FLAGG STREET

Sanford Temperature Control Inc

96 Old Wilton Rd
Milford

Saoirse Design Build

68 Main Street

SHOEMAKER & SONS

7 RAILROAD AVE

SIMONSAYZFIXIT,INC

112 MOORE ST

Single Source NH

22 Millennium Way
Concord

Socelvic Co

425 Washington St

Speers Custom Builders

28 Oliver Neck Rd

Spray Foam By Mavros

7b Webster Street

SPRAY INC

55 TEELE RD

Team Handyman, LLC

4 Birch Rd
Newton

TETREAULT CONSTRUCTION

22 BROOKS POND ROAD

The Acton Handyman

376 Old Beaverbrook

THE BULKHEAD MAN & SONS LLC

12 GAVIN RD
Mont Vernon

The Green Bean

PO Box 365282

The Green Cocoon

141 Bridge Rd

Troymade

1 summerhill ave

Turn Cycle Solutions

PO Box 78
Nashua

TWO STOREY BUILDING

89 SPECTACLE HILL RD

Ultra Safe Pest Management Inc

1291 Commonwealth Avenue

United Remodeling

PO Box 35466

US Home Improvement

27 Hamilton Rd

V. Robert Gagosian

115 Washington St

Vallerand Builders, Inc.

309 Concord Road

VanVleet Construction

5370 Camp Road

Vent Master

35 Henderson St

Vigneault Carpentry

153 Page Rd
Bow

Vista Home Improvement

2003 Riverdale Road

Warmzone

12637 S 265 W Suite 100

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Concord Zip Codes

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