Home Additions Built To Look Original To The House
Second stories, in-law suites, sunrooms, and bump-outs across Delaware County and the Main Line — engineered, permitted, and finished by one team.
What's included in our home additions
How your home additions gets built
Every step, start to finish, handled by one design-build crew.
- 1Week 1
Site visit
We review lot lines, zoning, and how the addition ties in.
- 2Weeks 2–10
Drawings & zoning
In-house plans, engineering, and township approvals.
- 3Weeks 10–13
Foundation
Excavation, footings, and foundation walls.
- 4Weeks 13–17
Framing & roof tie-in
Walls, roof, windows, and weather-tight shell.
- 5Weeks 17–20
Rough-in & insulation
Electric, plumbing, HVAC, inspected before drywall.
- 6Weeks 20–26
Finishes & occupancy
Interior finishes, siding matched to the house, final permit.
Build your home additions estimate
Pick your size and materials. Your estimate updates as you go.
Project size
Foundation
Exterior
Add-ons · choose any
Why homeowners choose Jackson Builders
Master builders since 1974
Three generations of craftsmanship in Delaware County — not a franchise, not a broker.
One team, start to finish
The same crew that quotes your project builds it. No handoffs, no mystery subcontractors.
Fixed, itemized pricing
You see exactly where every dollar goes before demolition day.
Licensed, insured, and permitted
We handle township permits, engineering, and inspections on your behalf.
Related projects
Home Additions questions, answered
How long does a home addition take?
Most additions run 12 to 20 weeks from demolition to final walkthrough, depending on size, foundation work, and township permitting timelines.
Do you handle permits and engineering?
Yes. We manage structural engineering, township permits, and inspections from start to finish so you never chase paperwork.
Can we live in the home during construction?
In most cases yes. We wall off the work zone, protect finished areas, and keep utilities live wherever the scope allows.
Request Your Free Estimate
Tell us about your project and you get an instant confirmation email and the owner calls within 15 minutes to schedule your free on-site consultation.
Explore other services
We build home additions across Delaware County, the Main Line, and South Jersey — see every area Jackson Builders serves.