Mechanical · Hampstead
Attic, spray foam and home insulation in Hampstead
Attic insulation, spray foam, blown-in insulation, air sealing, and basement and crawl space insulation for homes and small buildings across Canada and the US. Request a free quote online. Requests from Hampstead and nearby towns are handled the same way: one request with the job, the address and the timing.
Attic, spray foam and home insulation: what we cover in Hampstead
- Attic InsulationAttics brought up to a deep, even layer of insulation, with baffles at the eaves to keep the roof vented.
- Spray Foam InsulationClosed-cell and open-cell spray foam for rim joists, basement walls, cathedral ceilings and tight cavities.
- Blown-In InsulationLoose-fill cellulose or fibreglass blown into attics and dense-packed into closed walls.
- Air SealingGaps around pipes, wires, chimneys, pot lights and the attic hatch sealed before insulation goes in.
- Basement InsulationBasement walls and rim joists insulated with spray foam or rigid foam board, ready for finishing.
- Crawl Space InsulationCrawl space walls and rim joists insulated and the ground covered with a sealed vapour barrier.
- Wall InsulationBatts, mineral wool or spray foam in open walls during renovations, or dense-pack in closed walls.
- Old Insulation RemovalWet, compressed or rodent-damaged attic insulation vacuumed out before new material goes in.
Working in Hampstead
Heat escaping through a thin attic melts roof snow from below and creates ice dams along the eaves, which can push water into ceilings. Ask for air sealing before new insulation goes in, and check that soffit vents stay open so the attic stays cold and dry.
Québec runs on aerospace, AI, hydroelectric infrastructure, and a deep manufacturing base, with cold continental winters that demand audit-ready exclusion and HVAC programs.
How a job goes
- RequestYou describe the house in your email: cold rooms, drafts, ice dams, high bills, or a renovation coming up.
- InspectA local specialist checks insulation depth and type, air leaks, attic ventilation, moisture and any old vermiculite.
- PlanThe areas that make the biggest difference are picked first, with a material and a target R-value for each.
- QuoteWritten quote with the areas, materials, R-values, air sealing, ventilation work, prep and cleanup.
- InstallWork done to the agreed scope, followed by a walkthrough with you.
Every written quote covers
- Areas to be insulated
- Material and target R-value per area
- Air sealing included or not
- Ventilation and baffles
- Old insulation removal, if needed
Questions
Do you take attic, spray foam and home insulation jobs in Hampstead?
Yes. Requests from Hampstead, Laval, Terrebonne, Mascouche and the rest of Quebec are handled the same way. Use the quote form on this page, or email [email protected] with the service, the address and the timing.
How much insulation should my attic have?
It depends on your climate. In most of Canada and the northern US, codes and energy programs point to roughly R-49 to R-60 in the attic, which works out to around 16 to 20 inches of blown-in insulation. Milder regions call for less. Many older houses have well under half that. The specialist measures what is there now and quotes the depth needed for your area.
Spray foam or blown-in: which is better?
They do different jobs. Blown-in cellulose or fibreglass is the usual choice for open attic floors because it goes in fast and costs less for the same R-value. Spray foam costs more but seals air leaks as it insulates, so it suits rim joists, basement walls, cathedral ceilings and tight spaces. Many projects use both.
Why does air sealing come before insulation?
Fibreglass and cellulose slow down heat, but they do not stop air. Warm air leaking into the attic through gaps around pipes, wires, pot lights and the hatch carries heat and moisture with it, which leads to ice dams and frost on the underside of the roof. Sealing those gaps first lets the new insulation work the way it should.
Can you insulate walls without opening them?
Often, yes. Older houses with empty wall cavities can be dense-packed with cellulose through small holes drilled in the siding or the inside wall, which are then plugged and patched. Walls that already have some insulation, or that are blocked inside, may not be good candidates, so the specialist checks before quoting.
There is grey-brown pebble insulation in my attic. Is that a problem?
That is probably vermiculite, and some vermiculite contains asbestos. Do not disturb it or store things on it. It needs to be tested, and if it contains asbestos it has to be removed by a qualified abatement contractor before any insulation work goes ahead. Mention it in your email so the right specialist reviews your request.
Attic, spray foam and home insulation near Hampstead
Other services in Hampstead
Request a quote
Tell us what needs doing, where and when. We reply by email with a price, or with the questions we need answered to price it.
Contractors and trade companies
Register your company to be considered for work in your trade and service area.