services | A cut above the rest

At 4GC we work with our clients to design the perfect space for your needs. 4GC can build and design anything from the simplest pergola to a complex multi-level deck. We take pride in the work we do for our clients and appreciate all the positive feedback we’ve received throughout the years. 4GC specializes in designing and building composite decks, front porches, garage roof decks, pergolas, privacy walls and rooftop decks. We are your number one choice for deck building in the Chicago area! 4GC works closely with licensed architects and designers to provide an accurate and detailed design in a timely manner. We also offer permit expediting services.  

Decks & Porches


backyard decks

It’s more than just a deck. It’s an extension of your home. Decks have become a very popular way of adding living space to your home over the years. When it comes to building a deck, you have options – sometimes too many. The first choice you should make, and often the hardest, is the material you’d like to use for your new deck. At 4GC our deck building services focus on design, style, quality, and care. We’re the deck builders you’re looking for.

rooftop decks

Rooftop decks are an enviable feature in any home! Many homeowners find that rooftop decks are very inviting to guests and make for a popular entertainment space. Others find that their roof deck is the perfect spot for container or raised bed gardens, allowing them to increase the greenery on their property and perhaps even grow some vegetables, without tearing up their attractive lawns.
garage roof decks

garage-top decks

This is the last deck you are going to build. We can extend your outdoor living space with our decking, we turn your garage roof into the ultimate outdoor living space. Roof decks are highly sought after on homes with flat roofs. Common in urban areas, roof decks offer a birds-eye view of your surroundings, save precious space and can even help lower your monthly cooling or heating bills thanks to insulative possibilities.

front porches

Front porches are great spots for relaxing and entertaining guests. Porches symbolize everything that’s warm and wonderful about home and outdoor living. This special space is an extension of your house itself—which means it’s equally as important. In fact, because your porch and patio are the first things your guests are likely to see when they arrive, it might even be doubly important.
front porch

deck materials

  • Composite & PVC
  • Wood
  • Tile
Composite decking has been around since the late 90’s. It was one of the only alternatives to wood until PVC came on the scene in the early 2000’s. Initially, composite decking was made up of a combination of plastic and wood fibers. This type of decking material offered superior durability and resistance to adverse weather, than its wood counterpart. One of the cons of this type of decking though was the exposed composite material was prone to staining, fading, and rotting over time. Composite decking has come leaps and bounds since those days though. The composite decking we have today Is a very different form than what initially came out, and addressed virtually every one of the prior drawbacks. It maintains a similar wood-plastic composite core, capped with a more durable casing. The casing protects the fiber composite, and makes the finished product appear very similar to a PVC deck board ‐ both require minimal maintenance, retain color, and are weather resistant. Composite deck manufacturers offer an excellent product with a durable, low maintenance finish that closely resembles real wood. Manufacturers of both synthetic and composite decking have come a long way in the past decade to very closely mimic the look of wood with high quality, low-maintenance materials. Clients enjoy minimal maintenance and enhanced design/color options when choosing wood-alternative decking. Some of the main brands in composite decking are TimberTech, Trex, MoistureShield, FiberOn.
Wood is still one of the most popular choices when it comes to decking materials. Though not as low maintenance, less resistant to the elements, and less longevity, wood is a very durable material and is more economical than other composite options. Pressure treated pine is most often used material. Midwestern Red Cedar is also an outstanding choice though as it is naturally bug resistant and also more resistant to rotting as well.
Cumaru Deck Tiles are the perfect fit for rooftop deck, concrete patios, balconies and heavy-duty commercial applications. Some of the benefits of tile decking include:
  • Fastener Free Surface
  • Easy to install over a concrete slab & other surfaces
  • Low maintenance with a lifespan of up to 75 years
  • Highly slip & splinter resistant
  • Resilient against decay & mold



wood & metal pergolas

Pergolas brings style and shade to your outdoor living space and patio. Pergolas are a great way to add partial coverage over seating areas and dining tables. Pergolas provide protection from the elements and add curb appeal at the same time.