HOME ADDITIONS · MORRIS COUNTY, NJ
Home Additions & Extensions in Morris County, NJ
More space that looks like it was always there — designed, permitted, and built by one accountable team, on time and on budget.
20+ years · On-time guarantee · 4.3★ on Google
Grow your home without leaving it.
When you love your Morris County neighborhood but need more room, a home addition is the smartest move you can make. ACX Build designs and builds additions that match your home’s character seamlessly — handling design, structural engineering, permits, and construction so you have one team accountable from first sketch to final inspection.
The additions Morris County families ask for most.
- Primary suite additions
- Family room & great room extensions
- Second-story additions
- In-law & multi-gen suites
- Kitchen bump-outs
- Sunrooms & four-season rooms
- Garage & above-garage additions
The hard part, handled.
Additions live or die on the details most homeowners never see — structural engineering, foundations, tying into existing rooflines, and navigating local permitting and inspections. ACX manages all of it, so your addition is sound, code-compliant, and seamless inside and out.
A calm, predictable process — from first sketch to final walkthrough.
Free Design Consultation
We listen, walk your space, and align on vision and budget.
Design & Fixed-Price Quote
Detailed design and a clear, transparent price before any demo begins.
Expert Build
One dedicated team, daily communication, your home respected throughout.
Reveal & Guarantee
A finished space you love, backed in writing.
See the transformation for yourself.
Drag any slider to reveal the before. This is real Morris County work — same room, same angle, no staging tricks.
What drives the cost of a home addition in NJ?
A home addition in Morris County, NJ typically costs $90,000 to $250,000 or more, depending on square footage, whether you build out or up, foundation and structural work, and finish level. A modest bump-out can fall below that range; a large second-story or primary-suite addition can exceed it. Start with our instant estimator for an early range, then we firm it up at your design consultation.
ON-TIME · ON-BUDGET · GUARANTEED
The ACX Guarantee: a remodel without the surprises.
We put it in writing — because peace of mind shouldn’t be optional.
On Time
We set a realistic schedule before work begins and protect it — clear milestones up front, honest communication if anything shifts.
On Budget
A fixed price agreed up front. Any change you request is priced and approved in writing first — no moving targets, no surprise change-order games.
Craftsmanship Guaranteed
Workmanship guaranteed in writing on a tiered schedule — up to 10 years on structural work — plus manufacturer warranties on materials and 5 years of complimentary ACX Care.
Home addition FAQs
Do you handle permits and engineering?
Yes — design, structural engineering, and permitting are all part of an ACX addition.
Will the addition match my existing home?
That’s the goal — we match rooflines, materials, and proportions so it reads as original.
Can you do a second-story addition?
Yes, including structural reinforcement of the existing home where needed.
Where we work in Morris County, NJ
We deliver this service across Morris County and Northern NJ — including Morristown, Morris Township, Madison, Chatham, Mendham, Harding, Parsippany, Randolph, Denville, Rockaway, Morris Plains, and Florham Park. See all areas we serve or explore all our services.
Ready to transform your home — without the chaos?
Book a free design consultation. We’ll listen, share ideas, and show you exactly how ACX keeps your project on time, on budget, and guaranteed.
No obligation. A real ACX designer replies within 1 business day.