Professional Insulation St. John’s, NL
Complete Insulation for St. John's Extreme Marine Climate
Canada's easternmost city faces brutal wind, rain, and some of the country's longest winters. Our four insulation services protect St. John's homes from the elements.
Flexible Financing Available
Make your insulation upgrade affordable with our financing options →
25,000+ Insulated
Satisfaction Guaranteed
Red Seal CertifiedWhat Insulation Services Do We Offer in St. John’s?
Greenfoot provides spray foam, blown-in, batt, and soundproofing insulation for St. John’s homes, covering attics, walls, basements, and crawl spaces.
Our team of experts offers a wide range of insulation services to meet your specific needs — from thermal performance to acoustic comfort.
Spray Foam Insulation
R-6 to R-7 per inch (closed-cell)
Closed-cell and open-cell spray foam provides superior air sealing and the highest R-value per inch. Creates a seamless vapor barrier that eliminates drafts and moisture intrusion.
Best for: Basements, crawl spaces, rim joists, exterior walls, and areas requiring air sealing and moisture barrier
Blown-In Insulation
R-3.2 to R-3.8 per inch
Loose-fill cellulose or fiberglass blown into attics, walls, and enclosed cavities. Fills irregular spaces and gaps that batt insulation misses, providing excellent coverage.
Best for: Attics, enclosed wall cavities, hard-to-reach spaces, and topping up existing insulation
Batt & Poly Insulation
R-3.1 to R-4.2 per inch
Traditional fiberglass or mineral wool batts with poly vapor barrier. Cost-effective for new construction and accessible renovation projects with standard stud spacing.
Best for: New construction walls, accessible attics, floor assemblies, and renovation projects with open stud bays
Soundproofing Insulation
STC 45-65 rating
Specialized acoustic insulation to reduce noise transmission between rooms, floors, and from exterior sources. Mineral wool and resilient channel systems for maximum sound control.
Best for: Shared walls, home offices, media rooms, bedrooms above living spaces, and exterior noise reduction
Why Do St. John’s Homes Need Better Insulation?
St. John’s's cold winters and humid summers create unique insulation challenges, and upgrading can reduce heating costs by 30 to 50% while preventing moisture damage.
St. John's is one of Canada's windiest, wettest, and snowiest cities. The combination of extreme marine weather and aging housing stock makes comprehensive insulation upgrades essential. From downtown row houses to suburban developments, every St. John's home benefits from proper insulation.
St. John’s's Insulation Challenges
St. John's is one of Canada's windiest cities, dramatically increasing heat loss through walls
Downtown row houses and older Signal Hill homes have minimal insulation and major air leakage
Wind-driven rain penetrates building envelopes at rates far exceeding most Canadian cities
Street noise in downtown and along major routes like Torbay Road disrupts residential quiet
How Greenfoot Insulation Helps
Spray foam provides the wind and moisture barrier St. John's extreme weather demands
Blown-in attic insulation maximizes R-value in older homes without removing existing materials
Batt insulation offers budget-friendly upgrades for accessible wall cavities during renovations
Soundproofing creates quiet retreats from St. John's persistent wind and urban noise
Winter Temperature
-5°C to -12°C
Climate Zone
Zone 6
Recommended R-Value
R-60 attic, R-22 walls
Why Choose Greenfoot for Insulation in St. John’s?
Greenfoot has insulated 25,000+ homes across 5 provinces with certified installers and manufacturer-backed warranties.
With over 25,000 homes insulated across Canada, Greenfoot delivers expert insulation solutions backed by experience, quality materials, and a satisfaction guarantee.
Pride in Every Installation
Our insulation crews take pride in delivering clean, thorough work in every St. John’s home. We treat your property with respect and ensure professional results.
25,000+ Homes Insulated
With thousands of insulation projects across Canada, we've seen every building type and challenge. Our experience ensures the right solution for your St. John’s home.
Satisfaction Guaranteed
We stand behind our insulation work with a satisfaction guarantee. If you're not completely happy with your insulation installation, we'll make it right.
Rebates & Financing Available
Make your St. John’s insulation upgrade affordable with flexible financing options and available government rebates for energy efficiency improvements.
What Should You Expect During an Insulation Project?
Most insulation projects take 1 to 3 days, starting with a free home assessment and ending with a final inspection to verify coverage and R-value targets.
ÉTAPE 01
Consultation gratuite en isolation
Notre conseiller certifié en confort résidentiel visite votre propriété pour évaluer vos besoins d'isolation sans frais :
- •Évaluer les niveaux d'isolation actuels dans les combles, murs, sous-sol et vides sanitaires
- •Identifier les points de fuite d'air, les ponts thermiques et les problèmes d'humidité
- •Discuter de vos objectifs de confort, préoccupations de bruit et exigences budgétaires
- •Recommander les bons types d'isolation pour chaque zone de votre maison
- •Fournir un devis détaillé par écrit couvrant tous les travaux d'isolation recommandés
COÛT: Gratuit, sans obligation
Délai: 3 à 5 jours ouvrables
ÉTAPE 02
Planification du projet d'isolation
Suite à votre évaluation, notre équipe coordonne votre calendrier d'installation d'isolation :
- •Planification selon la portée et les priorités spécifiques d'isolation de votre maison
- •Coordination de plusieurs types d'isolation si votre projet nécessite mousse pulvérisée, soufflée, en nattes ou insonorisation
- •Communication claire sur la durée du projet et les exigences de préparation
- •Considérations météorologiques pour les applications de mousse pulvérisée nécessitant des plages de température spécifiques
Délai: Planifié dans 1 à 2 semaines
ÉTAPE 03
Installation professionnelle
Notre équipe d'isolation expérimentée arrive avec les bons matériaux et équipements pour votre projet :
- •Préparation des surfaces et masquage protecteur des zones finies
- •Application des types d'isolation sélectionnés par des techniciens certifiés
- •Contrôles de qualité tout au long de l'installation pour assurer une couverture et une valeur R adéquates
- •Installation de pare-vapeur appropriée où requis par le code du bâtiment
- •Nettoyage complet de toutes les zones de travail à la fin
Zone unique: 4 à 8 heures
Zones multiples: 1 à 3 jours
ÉTAPE 04
Révision de qualité et visite
Une fois l'installation de votre isolation terminée, nous effectuons une révision finale avec vous :
- •Visite de toutes les zones isolées pour confirmer la couverture et la qualité
- •Révision des délais de réentrée pour la mousse pulvérisée et des consignes de sécurité
- •Documentation des types d'isolation et des valeurs R installés
- •Réponse à vos questions sur l'entretien de votre nouvelle isolation pour une performance à long terme
Délai: Révision le jour même
ÉTAPE 05
Directives de préparation pour les propriétaires
Pour assurer une installation efficace, veuillez suivre ces étapes de préparation :
- •Assurer un accès dégagé à toutes les zones à isoler (trappes de combles, murs de sous-sol, vides sanitaires)
- •Retirer les objets entreposés le long des murs extérieurs et dans les espaces de combles
- •Pour les zones de mousse pulvérisée : prévoir de quitter la maison pendant 24 heures après l'application
- •Pour les travaux soufflés et en nattes : les zones occupées peuvent être utilisées le jour même après l'installation
- •Être présent pour une visite pré-installation le jour de l'installation
What Do St. John’s Homeowners Ask About Insulation?
Below are expert answers to the most common insulation questions from St. John’s homeowners, covering costs, types, R-values, and rebates.
Common questions about insulation services in St. John’s, NL
What types of insulation does Greenfoot install in St. John’s?
What R-value insulation does my St. John’s home need?
How much can I save on Newfoundland Power bills with better insulation in St. John’s?
Which areas of my St. John’s home should be insulated first?
How long does insulation installation take in St. John’s?
Can soundproofing insulation reduce noise in my St. John’s home?
Why is insulation especially important for homes in St. John’s, Newfoundland?
QUE DISENT LES GENS DE GREENFOOT?
Nos avis 5 étoiles parlent d'eux-mêmes!
"FIXED A LONG STANDING ISSUE I HAD FROM POOR INSTALLATION BY ANOTHER COMPANY!"
The two technicians Tanner and Halim were excellent, did a great job, very tidy, and identified 2 problems with my heat pump head, and fixed a long standing issue I had from poor installation by another company! Thank you very much, looking forward to using Greenfoot again.
Frederick TOFFLEMIRE - Avis 5 étoiles
"I ONLY WISH THEY INSTALLED OUR HEAT PUMP ORIGINALLY"
Great company to deal with. We hired them to move an existing heat pump after the original installer refused to help us. The estimator and the installer were both very polite, careful and thorough. I only wish they installed our heat pump originally. I would hire them again without hesitation.
Ellen DOWNEY - Avis 5 étoiles
"WHEN THEY LEFT THE HOUSE THERE WAS NO MESS TO CLEAN UP!"
The young chaps, Marlon Marcuflo and Sylvia Richard, were wonderful to deal with. They were extremely polite, very tidy and efficient in their work, were right on schedule and did an excellent job. When they left the house there was no mess to clean up. I would recommend Greenfoot Energy Solutions to anyone thinking of upgrading their home.
Alice GRACIE - Avis 5 étoiles
"THEIR ENTIRE TEAM IS EXTREMELY EXPERIENCED, KNOWLEDGEABLE, AND CONSIDERATE"
We hired Greenfoot to install 2 heat pumps. From the beginning to end - initial home visit to the final installation touches - they were wonderful to work with. Their entire team is extremely experienced, knowledgeable, and considerate; and were very accommodating.
Michael BOYD - Avis 5 étoiles
"OUR OLD HOUSE FEELS LIKE A BRAND NEW CONSTRUCTION"
The Greenfoot Team did amazing work in our home. Our old house (built in 1959) feels like a brand new construction thanks to the ductless heat pumps, spray foam insulation and HVAC installed by the friendliest staff! Everyone we spoke to from Greenfoot was helpful and just seemed genuinely happy in their job.
Happy Homeowner - Avis 5 étoiles
"FIXED A LONG STANDING ISSUE I HAD FROM POOR INSTALLATION BY ANOTHER COMPANY!"
The two technicians Tanner and Halim were excellent, did a great job, very tidy, and identified 2 problems with my heat pump head, and fixed a long standing issue I had from poor installation by another company! Thank you very much, looking forward to using Greenfoot again.
Frederick TOFFLEMIRE - Avis 5 étoiles
"I ONLY WISH THEY INSTALLED OUR HEAT PUMP ORIGINALLY"
Great company to deal with. We hired them to move an existing heat pump after the original installer refused to help us. The estimator and the installer were both very polite, careful and thorough. I only wish they installed our heat pump originally. I would hire them again without hesitation.
Ellen DOWNEY - Avis 5 étoiles
"WHEN THEY LEFT THE HOUSE THERE WAS NO MESS TO CLEAN UP!"
The young chaps, Marlon Marcuflo and Sylvia Richard, were wonderful to deal with. They were extremely polite, very tidy and efficient in their work, were right on schedule and did an excellent job. When they left the house there was no mess to clean up. I would recommend Greenfoot Energy Solutions to anyone thinking of upgrading their home.
Alice GRACIE - Avis 5 étoiles
"THEIR ENTIRE TEAM IS EXTREMELY EXPERIENCED, KNOWLEDGEABLE, AND CONSIDERATE"
We hired Greenfoot to install 2 heat pumps. From the beginning to end - initial home visit to the final installation touches - they were wonderful to work with. Their entire team is extremely experienced, knowledgeable, and considerate; and were very accommodating.
Michael BOYD - Avis 5 étoiles
"OUR OLD HOUSE FEELS LIKE A BRAND NEW CONSTRUCTION"
The Greenfoot Team did amazing work in our home. Our old house (built in 1959) feels like a brand new construction thanks to the ductless heat pumps, spray foam insulation and HVAC installed by the friendliest staff! Everyone we spoke to from Greenfoot was helpful and just seemed genuinely happy in their job.
Happy Homeowner - Avis 5 étoiles
What Other Energy Services Are Available in St. John’s?
Explore our complete range of energy solutions available in St. John’s, NL
Ready to Insulate Your St. John’s Home?
Book your free insulation assessment today. Our Home Comfort Advisor will evaluate your home and recommend the right insulation solutions for maximum comfort and energy savings.