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Spray foam insulation pros in Dover

Avatar for Insul-Kings
Insul-Kings
50 Boston Rd
4.21(
34
)
Approved Pro
Insul-Kings
50 Boston Rd
4.21(
34
)
Approved Pro
Customers say: Terrific value
268 local quotes requested
26 years of experience

Insul Kings is a fully licensed and insured weatherization contractor specializing in weatherization work (adding insulation to home), energy audits, whole house air-sealing, and the installation of various types of insulation for both commercial and residential projects. We are a proud partner of Mass Save & NH Save and are rated in the top 5% of their contractor scoring.

"These guys are excellent! From Ken, whom performed the estimate, to Jeremiah and Chaz setting appointment to Dave and his partner.. I'm sorry I forgot your name. All very professional and accommodating... Dave explained what he was doing and why. Made me very comfortable with his experience and confidence in his work. I would DEFINITELY recommend Insul-Kings to anyone needing blown insulation."

Timothy C on January 2025

Insul Kings is a fully licensed and insured weatherization contractor specializing in weatherization work (adding insulation to home), energy audits, whole house air-sealing, and the installation of various types of insulation for both commercial and residential projects. We are a proud partner of Mass Save & NH Save and are rated in the top 5% of their contractor scoring.

"These guys are excellent! From Ken, whom performed the estimate, to Jeremiah and Chaz setting appointment to Dave and his partner.. I'm sorry I forgot your name. All very professional and accommodating... Dave explained what he was doing and why. Made me very comfortable with his experience and confidence in his work. I would DEFINITELY recommend Insul-Kings to anyone needing blown insulation."

Timothy C on January 2025


SAV-ON INSULATION
12 LEXINGTON AVE
4.40(
5
)
Approved Pro
SAV-ON INSULATION
12 LEXINGTON AVE
4.40(
5
)
Approved Pro
Customers say: Quick response
373 local quotes requested
56 years of experience

We have over 40 years experience with new and old homes barns, garages, buildings, whatever you need insulated! We offer many types of insulation including: fiber glass batting,blowing fiber glass, cellulose,spray foam,insulating pipe work, blown in blanket, dense packing. Serving all of MA and NH area *FREE ESTIMATES*

"Another 5 STAR review. Roland and Brett are excellent !! They have extremely high quality and are highly efficient. My wife and I have owned three homes. Renovated two. We have dealt with many, many contractors. Roland is one of the best. The pricing is great, the service is great and the people are great. We would hire Sav-On again in a heartbeat. We highly recommend them."

Victor F on August 2023

We have over 40 years experience with new and old homes barns, garages, buildings, whatever you need insulated! We offer many types of insulation including: fiber glass batting,blowing fiber glass, cellulose,spray foam,insulating pipe work, blown in blanket, dense packing. Serving all of MA and NH area *FREE ESTIMATES*

"Another 5 STAR review. Roland and Brett are excellent !! They have extremely high quality and are highly efficient. My wife and I have owned three homes. Renovated two. We have dealt with many, many contractors. Roland is one of the best. The pricing is great, the service is great and the people are great. We would hire Sav-On again in a heartbeat. We highly recommend them."

Victor F on August 2023


Independence Exteriors
Po Box 146
No reviews
Independence Exteriors
Po Box 146
No reviews
24 years of experience

Exterior and Interior Remodeling,Vinyl Siding,Exterior Aluminum Trim Coverage,Kitchens,bathrooms,replacement doors and windows.decks,roofing.

Exterior and Interior Remodeling,Vinyl Siding,Exterior Aluminum Trim Coverage,Kitchens,bathrooms,replacement doors and windows.decks,roofing.


Bonnevie Construction Inc.
32 Wildpasture Road
3.00(
4
)
Bonnevie Construction Inc.
32 Wildpasture Road
3.00(
4
)
Customers say: Super punctual
38 years of experience

We are a Design Build company that provides a different approach to construction. We believe customer service from the beginning to the end is paramount. We couple that with clear line by line computer generated estimates with specifications for each item listed. BCI uses a state of the art Computer Aided Design system to help realize your project using 3D rendering techniques and can also provide a client viewer walk-through of the project. Smaller less complicated designs are provided free of charge if the project is awarded to BCI. We are a full service General Contractor and provide the project with all the required sub-contractors needed to complete a project. All billing is done by our bookkeeper with invoicing & statements done as needed throughout the job for a clear accounting of the project. Our knowledge of residential renovation/New homes and light commercial construction extends out for over thirty years and we have been in business as Bonnevie Construction, Inc since 1987. If your looking for a contractor with a solid reputation and uncompromising results Bonnevie Construction, Inc is your contractor for life.

We are a Design Build company that provides a different approach to construction. We believe customer service from the beginning to the end is paramount. We couple that with clear line by line computer generated estimates with specifications for each item listed. BCI uses a state of the art Computer Aided Design system to help realize your project using 3D rendering techniques and can also provide a client viewer walk-through of the project. Smaller less complicated designs are provided free of charge if the project is awarded to BCI. We are a full service General Contractor and provide the project with all the required sub-contractors needed to complete a project. All billing is done by our bookkeeper with invoicing & statements done as needed throughout the job for a clear accounting of the project. Our knowledge of residential renovation/New homes and light commercial construction extends out for over thirty years and we have been in business as Bonnevie Construction, Inc since 1987. If your looking for a contractor with a solid reputation and uncompromising results Bonnevie Construction, Inc is your contractor for life.


Builders Installed Products - NH
48 King St
3.00(
1
)
Builders Installed Products - NH
48 King St
3.00(
1
)
Customers say: Terrific value
44 years of experience

Additional websites - www.buildersinstalledproducts.net, http://installedbuildingproducts.com/home-insulation.asp?_vsrefdom=anglst. Additional DBAs - Installed Building Products LLC, Builders Insulation of NH. Additional phone - (800) 626-7797. Financing available. Additional contact names - Ron Record, Kyle Niemela.

Additional websites - www.buildersinstalledproducts.net, http://installedbuildingproducts.com/home-insulation.asp?_vsrefdom=anglst. Additional DBAs - Installed Building Products LLC, Builders Insulation of NH. Additional phone - (800) 626-7797. Financing available. Additional contact names - Ron Record, Kyle Niemela.


JP Pest Services
101 Emerson Rd
4.76(
168
)
JP Pest Services
101 Emerson Rd
4.76(
168
)
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers

JP Pest Services has been providing pest management solutions for New England homes and businesses since 1925. We’ve learned a lot about our Northeast customer base over the past 9 decades like what they expect from the effectiveness of our services to what they need from our Customer Service Representatives and Service Professionals in the field.

"Joel their sales rep assured us our apartments would be rotated so the inside of each unit was checked at least every six months. Got the bait and switch bc they never did this and we had a cockroach infestation that went on for a year. They lied to me and then their manager claimed “we don’t see it in the contract”. I want a refund. You’ve been doing nothing productive. I can lay my own ant traps for less than $2k a year."

Kate B on January 2025

JP Pest Services has been providing pest management solutions for New England homes and businesses since 1925. We’ve learned a lot about our Northeast customer base over the past 9 decades like what they expect from the effectiveness of our services to what they need from our Customer Service Representatives and Service Professionals in the field.

"Joel their sales rep assured us our apartments would be rotated so the inside of each unit was checked at least every six months. Got the bait and switch bc they never did this and we had a cockroach infestation that went on for a year. They lied to me and then their manager claimed “we don’t see it in the contract”. I want a refund. You’ve been doing nothing productive. I can lay my own ant traps for less than $2k a year."

Kate B on January 2025


Jason Pearson
No reviews
Jason Pearson
No reviews
17 years of experience

Residential Renovations, Additions and Remodeling

Residential Renovations, Additions and Remodeling


J & W CONTRACTING
34 Pocahontas St
2.33(
3
)
J & W CONTRACTING
34 Pocahontas St
2.33(
3
)
Customers say: Quick response
33 years of experience

Current number of employees: 3 (Variable depending on scale of work) Sub-contracing for larger job and advanced electrical and plumbing. We currently do not accept credit cards as a form of payment. Call us for all other billing inquiries.

Current number of employees: 3 (Variable depending on scale of work) Sub-contracing for larger job and advanced electrical and plumbing. We currently do not accept credit cards as a form of payment. Call us for all other billing inquiries.


603 Basement Solutions
5.00(
4
)
603 Basement Solutions
5.00(
4
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

With over 31 years of experience 603 Basement Solutions specializes in Basement Waterproofing, Crawlspace Moisture control, and Concrete foundation repair. When you hire 603 you can expect Courtesy, Professionalism, Honesty, Integrity and a whole team showing up with smiles. We can't wait to solve your problems.

"When looking at different companies to waterproof my basement prior to finishing it 603 was leaps and bounds better than the rest.  These guys know their stuff, couldnt be happier with my choice!"

Chris M on November 2022

With over 31 years of experience 603 Basement Solutions specializes in Basement Waterproofing, Crawlspace Moisture control, and Concrete foundation repair. When you hire 603 you can expect Courtesy, Professionalism, Honesty, Integrity and a whole team showing up with smiles. We can't wait to solve your problems.

"When looking at different companies to waterproof my basement prior to finishing it 603 was leaps and bounds better than the rest.  These guys know their stuff, couldnt be happier with my choice!"

Chris M on November 2022


Simplified Development
No reviews
Simplified Development
No reviews

We offer construction services, including apartment reno, office buildouts, roofing, siding & more!

We offer construction services, including apartment reno, office buildouts, roofing, siding & more!

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Spray foam insulation services FAQs

Yes, you should remove old insulation if it's damaged, contaminated, or deteriorated. Signs like water damage, rodent droppings, mold, or gaps mean removal is essential to maintain energy efficiency and a safe living environment. If the insulation is intact and functioning well, removal isn't necessary. However, compromised insulation can increase energy costs and pose health risks.

Attic insulation lasts 80 to 100 years; however, its performance starts to decline after 15 years. Insulation loses effectiveness as materials like fiberglass become dirty, wet, or affected by mold and other contaminants. Regular evaluation is critical because reduced insulation performance leads to higher energy loss. A professional inspection confirms when replacement is necessary, ensuring that your home maintains peak energy efficiency and comfort.

Excess attic insulation does not enhance energy efficiency beyond an optimal threshold. When insulation surpasses the necessary level for your region’s climate, additional material does not improve heat retention and may cause moisture buildup. Maintaining the correct balance is essential because over-insulation can lead to unintended issues without lowering energy costs. A professional assessment ensures that the amount of insulation is ideal for performance and efficiency, and helps avoid unnecessary expenses.

R-value is the measure of a material’s ability to resist heat transfer and directly determines insulation performance. A higher R-value means the material retains heat efficiently during winter and minimizes energy loss in warmer months. Selecting insulation with the appropriate R-value for your specific location is essential because environmental conditions and installation areas significantly influence energy efficiency. Over time, external factors like moisture may degrade the R-value, which underscores the importance of periodic evaluation.

Insulation damage occurs in several forms, including mold growth, pest infestations, water intrusion, and electrical harm. Damaged insulation compromises heat retention and significantly increases energy expenses while posing serious health risks. Immediate removal and replacement of compromised insulation are imperative to restore optimal performance and ensure the safety of your home. Regular inspections will identify these issues early, allowing for swift corrective action that maintains efficiency and protects occupants.

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