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    Average homeowner rating
  • Verified reviews icon251
    Verified drywall insulation services reviews

Top-Rated Drywall insulation pros in Guilford - Updated Nov 2026

Avatar for Shelton Insulation and Gutters, LLC
Shelton Insulation and Gutters, LLC
4.7(
39
)
Blown-In Insulation - Install or Upgrade

Serving Guilford, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Warranties offered

"The job was well done and very efficient. Did the large attics and basement ceiling in one day. Left the house picked up and clean. Very easy to work with. I would suggest that people are made aware of how messy and dirty the spray insulation is when done. We use the attic and had to put down plastic sheeting on top to keep it from flying around. I would recommend Dan and Shelton Insulation and Gutters without reservation."
Weathered Cedar Shakes
Walkway and Retaining Wall
5" K Style Gutters
Attic with retaining wall and Pull Down Cover
Attic No storage

+1

Response time1 day
Response rate97%
11 neighbors recently requested a quote
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.9(
387
)
Blown-In Insulation - Install or Upgrade

Serving Guilford, CT and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"I was impressed with the quality and skill of the crew, they knew exactly what to do and the result was excellent. I was extremely impressed with the quality of the insulation, and feel much more comfortable with my home! The foreman was excellent, very skilled, and the turn out was outstanding!"
Asphalt Roofing
Asphalt Roofing
Asphalt Roofing
Asphalt Roofing
Gutters

+42

1135 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Perfect Wall LLC
Perfect Wall LLC
4.7(
13
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Guilford, CT and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"Perfect wall LLC service was amazing! They went over the job with me and explained everything and taught me a thing or 2 about insulation. After the job I went to look at the results and it was exactly how he explained it! They use measuring templates you can see the actual depth of the insulation in all parts of the attic which was awesome. The vent out the exterior wall was so perfect I couldn?t even find it unless I really looked. Everything came out perfect they took the time to clean up very well also which my wife was very happy about! 10/10 would use again."
rockwool
fiberglass
spray foam
open cell foam
fiberglass

+1

Response time10 hrs
Response rate95%
Recommended by69%of homeowners
Connecticut Home Solutions, LLC
4.1(
32
)
Blown-In Insulation - Install or Upgrade

Serving Guilford, CT and surrounding areas

Approved

In business since 2001

Free estimates

Credit card accepted

"I liked that the first questions we were asked was "Have you had a home energy audit done? Did you know you can get a rebate on your insulation project?" Before even knowing the scope of our project, they were looking to help make it more affordable for us."
7 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Connecticut Basement Systems, Inc.
Connecticut Basement Systems, Inc.
4.3(
589
)
Blown-In Insulation - Install or Upgrade

Serving Guilford, CT and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"We hired Connecticut Basement Systems to encapsulate our 23 year-old crawlspace.  The sales representative came to do an estimate and was very helpful - he explained his recommendations clearly and gave us literature which explained the science in more detail.  We were somewhat cost-conscious and he helped us get the most bang for our buck.  We were able to arrange financing from an affiliate, and the process was incredibly easy.
The crew came to do the work yesterday - they laid down a drainage mat and rigid insulation on the floor slab and walls topped by a plastic liner, set up a dehumidifier with a drainage line to a sump pump (which they also installed).  I was amazed that they were able to complete everything in one day.  When the job was complete, the foreman went into the crawlspace with me and showed me everything they had done.  I had spent some time in the crawlspace removing the old insulation and was struck by how clean the finished product felt - to say nothing of the energy efficiency and moisture removal benefits.
We have no plans to do additional work in our basement for the time being, but if and when we decide to do any, Connecticut Basement Systems will be our first call.  Truly a pleasure to work with from start to finish.
"
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+12

162 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for The Masters Home Improvement
The Masters Home Improvement
4.2(
73
)
Injection Insulation - Install

Serving Guilford, CT and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"They came on short notice and did 2 drywall patches on two ceilings. of our vintage house Great job, they covered our belongings with tarps and plastic. and even fixed a couple of hairline cracks in different parts of the ceiling. They were quiet, stayed on task and finished the whole job the same day."
Response time3 days
7 neighbors recently requested a quote
Recommended by100%of homeowners
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Drywall Insulation FAQs, answered by experts

There are six levels of drywall finish, from 0 to 5, that refer to the amount of work performed during the finishing process.

Level 0: Drywall is hung with no finishing work.

Level 1: Tape is placed over the seams between drywall sheets.

Level 2: A thin layer of mud is applied over the tape and screw holes. This level is common for utility rooms or walls that will be covered.

Level 3: A full coat of mud covers the screw holes and tape, but the surface is not sanded. This is often used in garages.

Level 4: This is the most common finish for visible interior walls. It involves applying two coats of mud over seams and screw holes, with sanding between each coat, creating a smooth surface ready for flat paint.

Level 5: This is a high-end finish for luxury homes. It includes full taping, mudding, and sanding, plus a final skim coat over the entire surface before painting.

Small patches can be DIY, but professionals handle large-scale repairs with seamless results.

While you can put new drywall over old drywall, it’s not always the best option. In some cases, drywalling over drywall can make it harder to find wires and pipes behind your walls and conceal more serious problems with your walls. It can also make the room smaller. On the plus side, putting drywall over drywall can improve soundproofing and insulation. Plus, it’s often less expensive than tearing down and adding new drywall.

On average, drywall installation costs around $2,000, with a typical range of $400 to $6,000, including materials and labor. The final price depends on several factors. The most significant is the size of the area, as many contractors charge per square foot. Other cost factors include the complexity of the job (e.g., cutting around multiple windows and doors, corners, or curved walls), accessibility, location, the thickness of the drywall, the height of the room, and the desired level of finish. The level of finish can range from simply hanging the drywall to taping and mudding the seams and painting the walls.

Plastering lasts for around 15 to 20 years without needing repairs or maintenance in most cases, and with proper upkeep, plastering can last a lifetime—sometimes more than 100 years. Plaster repair costs between $1 and $3 per square foot, and you may need these services once every 15 to 20 years or so unless you have a harsh climate where humidity changes are a constant issue. You can also opt to skim-coat plaster for between $0.90 and $1.30 per square foot, which may serve you better in the long run.

The Guilford, CT homeowners’ guide to drywall insulation services

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