
Composite Decks
Upgrade your backyard with a durable, low-maintenance composite deck. We help you choose the materials, layout and finish that fit your home.

Massachusetts Homeowners:
Free on-site estimates. Clear written pricing.
Owner-operated · Licensed & insured in MA · $1M liability insurance
What We Do:

Upgrade your backyard with a durable, low-maintenance composite deck. We help you choose the materials, layout and finish that fit your home.

From a backyard deck to a complete rebuild, we design and build around your property, your space and how you plan to use it.

Screened porches, covered patios and pergolas create more usable space at home, with construction tailored to your existing property.
Attached, detached and modular garage preparation with dependable house framing in Massachusetts and New Hampshire.
Ground-up construction and home additions in Massachusetts and New Hampshire, managed end to end.
Detached ADUs, garage conversions, basement apartments and in-law suites up to 900 sq ft under the new Massachusetts ADU law.
Work with a general contractor in Massachusetts and New Hampshire for kitchens, bathrooms, basements and whole-home renovations.
Garage interiors and living spaces finished with careful drywall, paint, trim, flooring and tile.
MA & NH deck contractor
Helpful guide: Deck Cost in Massachusetts.
Whether you need a new backyard deck, a complete deck rebuild or focused repairs, FJ Global evaluates the framing, stairs, railings and surface boards before recommending the right scope. We plan frost-depth footings for local conditions, account for applicable snow-load requirements and coordinate the work around local permits and inspections in Massachusetts and New Hampshire.
Our team also connects decks with pergolas, covered porches and patio structures, making it easier to complete the outdoor space with one contractor. Every estimate starts with a walkthrough and a clear conversation about design, materials, permitting considerations and budget.
| ABOUT US
FJ Global is a construction company serving homeowners across Massachusetts and New Hampshire. Our work includes decks, garage builds, pergolas, framing, additions, remodeling and high-quality finish work.
Our clients come to us when they want more than the minimum: craftsmanship that lasts, a team that communicates, and a build process that respects their time, their home and their budget. Learn more about owner Fredy Justino and FJ Global Custom Builds.
FJ Global Custom Builds builds custom decks, porches, house framing, home additions, ADUs and garages for homeowners across Massachusetts and New Hampshire. Owner-operated, licensed & insured in MA, free on-site estimates.

Licensed & insured in MA · $1M liability insurance · Free written estimates · Owner-operated
About
FJ Global is a construction company serving homeowners across Massachusetts and New Hampshire. Our work includes decks, garage builds, pergolas, framing, additions, remodeling and high-quality finish work.
Our clients come to us when they want more than the minimum: craftsmanship that lasts, a team that communicates, and a build process that respects their time, their home and their budget. Learn more about owner Fredy Justino and FJ Global Custom Builds.



Project 1 of 3
Projects — Before & After
Straight from our job sites — every project below, from the day we arrived to the finished work.





























Why FJ Global
We build the way we'd build for our own family — materials that hold up, work that passes a close look, details finished properly the first time.
You'll never wonder what's happening on your project. Questions get answered, schedules get respected, and changes get discussed before they cost you money.
A professional site and a professional quote. What we agree on is what you pay — and we leave the place cleaner than we found it.
Whether you are replacing an old deck or starting from scratch, we help you understand your options, plan the right space and get a clear written estimate before making a decision.
Get My Free Deck EstimateMassachusetts & New Hampshire · Free estimates
Process
Every job follows the same four stages, so you always know where your project stands and what happens next.
We visit the site, listen to what you want, and take real measurements — then give you an honest read on scope and budget.
You get a clear written proposal: what's included, what it costs, and how long it takes. No vague line items.
Work starts on schedule with a clean, organized site and regular updates, so surprises stay off your project.
We walk the finished work together and punch out every detail. The job is done when you say it's done.
Common questions
Direct answers about our service area, deck choices, permits and estimates.
Yes. We build custom wood and composite decks for homeowners across Massachusetts and New Hampshire.
Wood offers a traditional appearance and can be refinished. Composite reduces routine surface maintenance. We discuss both choices during the free on-site estimate.
Permit responsibility depends on the project. We review it during the estimate and state the agreed responsibility in the written proposal. The local building department determines the requirements.
Yes. FJ Global LLC holds a Massachusetts contractor license and $1M in liability insurance.
Yes. Every project starts with a free on-site visit and a written estimate.
Most decks run about $30 to $75 per square foot installed, depending on size, height and material. We give a free written estimate after a site visit.
New ADUs typically cost about $275 to $450 per square foot to build; garage and basement conversions usually cost less.
In most single-family zones, yes. Since February 2, 2025, one ADU up to 900 sq ft (or half the main house) is allowed by right.
Yes. Since July 1, 2025, NH towns must allow one attached or detached ADU by right where single-family homes are allowed.
Almost always. Most MA and NH towns require a building permit and inspections for a new deck.
Wood costs less up front; composite costs more but does not rot or need staining, which suits New England winters.
Most residential decks are built in about one to two weeks once the permit is approved, depending on size and weather.
Massachusetts and southern New Hampshire, within about 40 miles of our base.