Completed project · Campbell, CA 95008
Window and Sliding Door Replacement with R-38 Attic Insulation in Campbell, CA
Four windows and a sliding glass door swapped for dual-pane vinyl units with argon-filled glass, and the attic stripped of its old insulation and refilled with R-38 batts. One Campbell house, one job, signed off in June 2026.
Financing is subject to credit approval, and terms depend on the lender. You repay the cost over time.
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What the job started with
Five openings and an attic, handled in one contract
This Campbell house, in ZIP 95008, had two pieces of work signed as one job: the windows and the patio slider replaced, and the attic insulation redone. Both sat in a single written scope, on one schedule.
The glazing side covered four window openings and one sliding glass door, each measured on site so the new units could be made to size. The attic side called for pulling out the existing insulation first, not laying new batts over it, and for a mold inspection of the home alongside the insulation work.
The work
What the job involved, in order
Measure every opening
All four window openings and the sliding door opening were measured so each replacement unit could be ordered to its exact size.
Order the units
Four dual-pane vinyl windows and one vinyl sliding glass door were ordered, all with Low-E3 coated glass and argon gas between the panes.
Remove and install
The existing windows and door came out and were disposed of, and the new units were set into the openings, then the work area was cleaned up.
Clear the attic
The old insulation was taken out of the attic and hauled away along with the rest of the debris, and the attic was cleaned before anything new went in.
R-38 insulation
New R-38 Eco-batt insulation was laid across the whole attic.
Mold inspection
A mold inspection of the home was carried out, with air samples sent to an accredited laboratory for analysis.
Sign-off
The homeowner inspected the finished windows and attic and signed the job off as complete in June 2026.
How it ended
New glass in five openings and R-38 overhead
The Campbell house came out of the job with four new dual-pane vinyl windows, a new vinyl slider to the patio, and a whole attic of new R-38 batts in place of the insulation that was pulled out. Both halves of the scope were finished and signed off together, about five weeks after work began.
Around the area
Other Jacob Construction projects near Campbell
One of Jacob Construction's completed projects across the Bay Area and San Diego. See the project map.
Questions homeowners ask
Window and insulation work in Campbell, answered from this job
Which San Jose area contractors replace windows and attic insulation?
Jacob Construction does both, and on this Campbell job, in ZIP 95008, it did them under one contract: four dual-pane vinyl windows and a vinyl sliding glass door with Low-E3, argon-filled glass, plus removal of the old attic insulation and new R-38 Eco-batt across the whole attic. The homeowner signed it off in June 2026. The company is licensed in California, License #1073757.
Which San Jose area contractors offer financing for window and insulation work?
Jacob Construction does. This Campbell window, sliding door and attic insulation job was financed. Financing is subject to approval.
Should old attic insulation be removed before new insulation goes in?
On this Campbell job it was. The existing insulation was pulled out and hauled away and the attic was cleaned first, then new R-38 batts went in across the whole space, with a mold inspection of the home done as part of the same scope.
Jacob Construction Inc. Licensed in California, License #1073757. Family owned since 2021. A+ rating with the Better Business Bureau. Serving the San Francisco Bay Area and San Diego.
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