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Find Spray foam insulation pros in Guilford

Avatar for McMahon Spray Foam, LLC
McMahon Spray Foam, LLC
4.6(
31
)

Serving Guilford, CT and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Anthony and his team did an incredible job insulating our full gut remodel in Fairfield. He took the time to put together a foam package that made the most of our budget. The crew was polite, neat and efficient. They took great care to cover finished surfaces before spraying and did a thorough clean up so we could jump right into sheet-rocking. Highly recommended for quality of work, constant communication and value!"
Spray Foam Insulation
Spray Foam Insulation
Spray Foam Insulation
Spray Foam Insulation
Open Cell Spray Foam

+5

Response time1 day
46 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Koala Insulation of Southern Connecticut
Koala Insulation of Southern Connecticut
5.0(
26
)

Serving Guilford, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"Foam spraying is something I took seriously because of all the chemicals and potential fumes after the spray. Koala team was great, did a good job, Brian explained all aspects of the process. They are probably the best in Fairfield county."
Attic Spray Foam
Crawl Space SPF
After Spray Foam
Before Spray Foam
Before Spray Foam

+20

Response time1 day
Response rate98%
19 neighbors recently requested a quote
Avatar for Top Notch Home Solution, LLC
Top Notch Home Solution, LLC
4.9(
41
)

Serving Guilford, CT and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

Get reliable insulation services from responsible insulation contractors: Top Notch Home Solution, LLC. Family-owned and operated in Cromwell, CT, we are professional providers of residential & commercial insulation services. We have 19 years of experience performing insulation services, among other services ranging from door &b window installation to HVAC services and offer..."Top-Notch Home Services.?

Project Photos
Project Photos
Project Photos
Project Photos
13 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Ecoorganic USA LLC
Ecoorganic USA LLC
5.0(
8
)

Serving Guilford, CT and surrounding areas

Approved

In business since 2015

Free estimates

Small jobs welcome

"Ecoorganic USA LLC did an outstanding job helping us with our spray foam insulation needs. From the initial consultation through project completion, their team was professional, knowledgeable, and easy to work with. They took the time to explain the process, answered all of our questions, and made sure the job was done right. The quality of their workmanship is excellent, and we immediately noticed improvements in comfort and energy efficiency. They showed up on time, kept the work area clean, and completed the project as promised. We are very pleased with the results and would confidently recommend Ecoorganic USA LLC to anyone looking for reliable, high-quality spray foam insulation services."
Completed Spray Foam
Exterior of Home
Closed Cell
Exterior Batt
Interior Fiberglass

+29

Response time4 hrs
Response rate100%
13 neighbors recently requested a quote
Avatar for Shelton Insulation and Gutters, LLC
Shelton Insulation and Gutters, LLC
4.7(
39
)

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%
13 neighbors recently requested a quote
Avatar for Lighthouse Spray Foam, LLC
Lighthouse Spray Foam, LLC
5.0(
2
)

Serving Guilford, CT and surrounding areas

Approved

In business since 2015

Free estimates

Customers say: Quick response

"Very simply put, Ricky and his team are extraodinary!!! He just completed the insulation work on a cottage built in 1850: crawl space, porch ceiling and attic, and his work is exceptional. As a bonus, he is meticulous, punctual, honest and simply a pleasure to work with. Doesn't hurt that his prices are competitive!"
Response time2 days
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for AWC Energy
AWC Energy
5.0(
18
)
Insulation - Install or Upgrade

Serving Guilford, CT and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Fantastic. Responded to my request and provided quote quickly. Work was exceptional. Workmen were friendly, professional and repaired my insulation perfectly. Couldn't be happier."
Insulation Project
Insulation Project
Painting - Exterior Project
Insulation Project
Insulation Project

+33

Response time1 day
Response rate100%
4 neighbors recently requested a quote
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FAQs for spray foam insulation projects in Guilford, CT

Old insulation should be removed when it shows damage, contamination, or heavy deterioration. If you notice water stains, rodent droppings, mold, or large gaps, plan on taking it out to protect your home’s energy performance and indoor air quality. Removing compromised material eliminates health hazards, cuts energy loss, and sets the stage for a safer, more efficient attic—all while keeping utility bills in check.

R-value measures how well insulation resists heat flow—the higher the number, the better it slows heat transfer. The right R-value keeps your home warmer in winter and cooler in summer, saving energy year-round. Match the rating to your climate zone and have a pro verify performance over time, because moisture or settling can lower R-value and cut efficiency.

Attic insulation can stay in place for 80 to 100 years, but its performance often drops after the first 15. As dust, moisture, or mold build up, the material loses R-value and allows heat to escape. Schedule periodic inspections so a pro can tell you when replacement makes sense—helping you keep energy bills down and indoor comfort up.

You can over-insulate an attic. Beyond the recommended R-value, extra layers don’t add efficiency and can trap moisture, leading to mold or reduced performance. A local insulation pro can measure current levels, confirm the right target for your climate, and advise on any adjustments so you avoid future energy or maintenance headaches.

Insulation can be damaged by mold, pests, water leaks, or accidental electrical contact. When the material is compromised, it loses R-value and can introduce health hazards. Removing and replacing affected sections restores efficiency, while routine inspections from a qualified pro help you catch problems early and keep your attic safe and energy-smart.