Running out of room shouldn’t mean uprooting your family or selling your home. Whether your household is growing, you’re craving a dedicated home office, or your attic is wasted potential, a thoughtfully designed addition or dormer is the smartest investment you can make. London Construction Service handles every phase from the first architectural sketch to the final coat of paint, so you never have to juggle multiple contractors or chase permits on your own.
A home addition isn’t just extra square footage, it’s a structural commitment that must match your home’s existing foundation, framing, roofline, and exterior cladding to the millimetre. London LCS specializes in bump-out additions, room additions, two-story additions, and add-a-level expansions across northern and central New Jersey. We work within your municipality’s setback requirements and zoning ordinances.
A dormer transforms a cramped, unusable attic into a bright, full-height living space, bedroom, nursery, home office, or bonus room — without altering your home’s footprint. London LCS builds shed dormers, gable dormers, and hip dormers engineered to your roof’s pitch and load-bearing structure. A well-executed dormer adds immediate curb appeal alongside functional square footage.
Site assessment, zoning compliance check, and structural suitability review
Detailed line-item estimates with no hidden costs or vague allowances
We pull all required NJ building, electrical, and plumbing permits
Phased payment scheduling aligned to your project milestones
Ongoing cost tracking with real-time client updates at every phase
Realistic project timelines that account for weather, inspections, and material.
Every project in our portfolio began with a homeowner who needed more space and a contractor they could trust. Browse our completed additions and dormers across New Jersey.
Post your initial consultation, we embark on a design journey, sculpting your ideas into tangible designs.
With design blueprints ready, we finalize materials, colors, and set timelines to ensure flawless execution.
Our meticulous craftsmen bring the design to life, ensuring every corner aligns with the agreed vision.
Yes, without exception. In New Jersey, any structural work that modifies your roofline, exterior walls, or foundation requires a building permit issued by your local municipality under the Uniform Construction Code (UCC). London LCS manages the entire permit process for you, from application submission to final inspection sign-off, across all counties we serve.
Most dormer projects take between 6 and 12 weeks from permit approval to completion. Full-room additions or two-story expansions typically take 3–6 months, depending on scope, weather, and inspection scheduling.
Dormer additions in NJ typically range from $18,000 to $60,000+, depending on dormer style (shed, gable, or hip), square footage, and finish level. Full-home additions vary widely, from $80,000 for a single-room bump-out to $250,000+ for a full second-story addition.
London LCS is a fully licensed New Jersey Home Improvement Contractor, registered with the NJ Division of Consumer Affairs and carrying full general liability and workers’ compensation insurance.
No Templates. No Cookie-Cutter Designs. Your Home, Your Plan.
We don’t offer packages — we offer solutions. Every addition and dormer is engineered specifically to your home’s structure.
We Build With the Same Materials We’d Use on Our Own Homes. We source CertainTeed roofing systems, James Hardie siding, Andersen windows, and premium framing lumber.
We Build With the Same Materials We’d Use on Our Own Homes. We source CertainTeed roofing systems, James Hardie siding, Andersen windows, and premium framing lumber.
Our Work Is Backed Long After We’ve Left the Jobsite. Every London LCS addition and dormer comes with a written workmanship warranty.
You’ll Always Know Where Your Project Stands. We assign a dedicated project manager to every job who communicates proactively, milestone updates, inspection results, and schedule changes
Home additions and dormers involve real structural decisions that deserve expert guidance before you commit. Whether you’re still comparing your options, want to understand the permitting process in your town, or just need a rough budget figure — our team is here to walk you through it with zero pressure and zero cost.
Call us to get $1000 OFF your new roofing project today!