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TRUSTED BY HARTFORD, WI HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon46
    Verified insulation services reviews

Top-Rated Insulation pros in Hartford - Updated Nov 2026

Avatar for THERMAL COMFORT INC
THERMAL COMFORT INC
4.9(
46
)
Spray Foam Insulation - Install

Serving Hartford, WI and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"I've used Thermal Comfort a few times in the past to insulate entire homes, but this time I had a small job. Although this was a small job, they didn't treat it as one. From the start, I called Dason and he came to my property right away to look at the scope of work. I told him I'd like to get the work done ASAP. Although they were busy he squeezed me in, I was on his schedule within a week. The two techs, Randy and Walt were professional and got the job done in a timely manner. I will continue to use Thermal Comfort for my spray foam needs."
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+4

Response time2 days
2 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for INSULATION SPECIALISTS INC
INSULATION SPECIALISTS INC
4.9(
11
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Hartford, WI and surrounding areas

Approved

In business since 1995

Free estimates

Credit card accepted

"I requested an estimate for blowing insulation into my attic. Jim came out once to do an assessment, and offered a reasonable estimate. We scheduled installation. He returned on my request after I removed the existing insulation to reassess the attic. It was determined that there was already insulation blown under the floor, and Jim stated that he would not recommend any further work. Jim did not charge me for the multiple visits for assessments, and was very gracious about the necessity of canceling. I would recommend his services without reservation."
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+6

Response time11 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for Advanced Pro Insulators
Advanced Pro Insulators
4.9(
15
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Hartford, WI and surrounding areas

Approved

In business since 2010

Free estimates

Small jobs welcome

"Tyler was the first to respond to an Angi List search, came the next day, and told me that my attic insulation, while not perfect, wasn't in need of adding more. I appreciated his honesty, even at the cost of losing a contract. I recommend this company based on honesty."
Spray Foam Box Sills
Spray Foam Box Sills
Fiberglass Insulation Installed
Fiberglass Falling Out of Box Sills
Spray Foam Box Sills

+1

Response time1 day
14 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Elite Insulators
Elite Insulators
4.8(
21
)
Injection Insulation - InstallSpray Foam Insulation - Install

Serving Hartford, WI and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"Kyle wen above and beyond my expectations! Very professional and knowledgeable! Every business should have someone like Kyle. I would highly recommend Elite Insulators. I have other projects coming up and he is already hired! Lol! THANK YOU Kyle!!"
Cathedral Ceilings
Ceiling/Wall
Walls
Amish Ice Box
Amish Ice Box

+56

Response time2 days
Recommended by57%of homeowners
Avatar for Premier North Insulation
Premier North Insulation
3.8(
79
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install

Serving Hartford, WI and surrounding areas

Approved

In business since 2011

Free estimates

Customers say: Quick response

"Specific project was attic, dense pack, and foam insulation. Very clean, friendly, and professional crew. Took the time to explain what they were doing, why, and what was wrong with what they found. Did a Focus on Energy assessment along with this work, recommended by Premier North, to make sure we let the science dictate the work. Very impressed with my overall experience."
Response time2 days
Response rate89%
74 neighbors recently requested a quote
Avatar for Hawx Insulation- Milwaukee
Hawx Insulation- Milwaukee
4.1(
361
)
Blown-In Insulation - Install or Upgrade

Serving Hartford, WI and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

At Hawx Pest Control, our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. Hawx Premium Pest Control will treat your pests, mosquitos, and more- then keep them away for good. If pests come back between treatments so will we, at no additional cost to you. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote. \n

8 neighbors recently requested a quote
Recommended by75%of homeowners
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Insulation FAQs, answered by experts

Heavily exceeding building code requirements for insulation not only wastes money on materials but can also lead to ventilation and moisture problems. In most cases, the minimum amount of insulation required by code is perfectly adequate.

The thickness of floor insulation will depend on the R-value you plan to achieve. R-value varies on the type of material as well as its thickness and density. Insulation materials with low R-values can be layered to match the value of denser materials. As long as your floor insulation is packed tightly, seals the area from drafts, and doesn’t prevent ventilation, it can be as thick (or thin) as you need.

The primary reason that insulation saves you money over time is that it reduces your energy bills by making your home more energy efficient. A crucial part of an insulation system is a properly installed vapor barrier. Local building codes dictate whether your insulation requires a vapor barrier based on the type installed. While some high-quality wool insulation may not technically need a vapor barrier, most municipalities still require one to meet code.

The most affordable way to insulate behind unfinished walls is to install fiberglass batts or rolls. These total around $0.75 per linear foot, with the width matching the gaps between standard studs perfectly. However, it’s important to consider the R-value of your insulation and the climate in your area, as fiberglass insulation isn’t the best in terms of preventing heat transfer. Plus, the most affordable option may cost more on electricity bills over time. The most affordable way to insulate behind finished walls is to leave them up and use blown-in insulation to avoid drywall replacement.

The most insulative type of insulation for behind drywall is spray foam insulation, but this is the most expensive insulation available. The most common insulation—sometimes considered the best for the value you get for the money—is fiberglass roll or fiberglass batt insulation, which is significantly more affordable but also far less insulative. The best kind of insulation for your house will also vary based on the climate in your area, your budget, and more. A professional insulation company can help you decide which type is best for your home.

The Hartford, WI homeowners’ guide to insulation services

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