Deck Builders Near Me in Northbrook, IL? Build Your Own Deck With an A-DIY Kit

You can do either. Northbrook-area deck contractors take on custom, attached and multi-level projects, so get two or three written quotes and ask for proof of insurance and recent Northbrook permits. To build it yourself, A-DIY delivers professionally engineered wood and composite deck kits to Northbrook homes, and you or a handyman can put one together with just a drill.

Contractor quotes in Northbrook vary with size, height, materials, stairs and railings, so compare several. Labor makes up a large part of each quote, which is why DIY usually saves money. A-DIY kits start at $3,699 for a 6x12 wood deck and go up to $12,799 for a 16x28 composite deck, and homeowners typically spend 30–50% less than hiring a contractor.

With A-DIY, a 12x12 deck kit is $4,899 in pressure-treated wood or $5,700 in composite. A 12x16 composite kit is $6,600; the closest wood size is 12x18 at $5,969. A 16x20 kit is $7,600 in wood or $10,199 in composite. Framing, decking, footings and hardware are included.

Usually. The Village of Northbrook’s Development and Planning Services Department lists new, replacement and reconfigured decks among its single-family permit types and asks for drawings showing joists, beams, posts, stairs and guards. Northbrook also limits impervious surface, including decks, to 50% of the lot and may charge a per-square-foot fee on new impervious area. Call Development and Planning Services to confirm what your project needs.

Northbrook adopted the 2024 International Residential Code with local amendments, effective January 1, 2026. The model code exempts freestanding decks of 200 sq ft or less, no more than 30 inches above grade and not serving a required exit door, from a building permit. Village impervious-surface and engineering rules can still apply, so check with Development and Planning Services before skipping a permit.

Many customers use their A-DIY decks for hot tubs and saunas. Applicable configurations are engineered to hold up to 15,000 lbs when properly assembled and supported, but tub weight, placement and wiring vary, so talk to a deck specialist before you order and check local electrical and permit rules.

Northbrook’s deck handout calls for concrete piers at least 8 inches in diameter that extend at least 42 inches below grade. A freestanding deck skips the ledger connection to the house, but its footings still need the Village’s approval. A-DIY kits assemble 15–17 inches off the ground on included Tuff Block footings, and acceptance of that system is up to Northbrook’s building officials.

Plan for snowy winters (O’Hare averages about 38 inches a year), deep frost and repeated freeze-thaw cycles, then hot, humid summers with strong thunderstorms. Clear snow with a plastic shovel, keep water draining away from the house, check a floating deck for level each spring and reseal wood every one to two years, or choose composite.

May through October is the typical building season in Northbrook. Use the winter to measure, choose your kit and sort out permits, then schedule delivery for after the ground thaws. A late-spring build leaves the whole summer to enjoy the deck.

Pressure-treated wood kits come in 15 sizes: Standard 12x12, 12x18, 12x20, 12x24, 12x28, 16x16, 16x20, 16x24 and 16x28, plus Compact 6x12, 6x16, 6x20, 8x12, 8x16 and 8x20. Composite kits come in 9 sizes from 12x12 to 16x28 in Amazon Gray or Forest Wood. Custom sizes are available on request.

Yes. A-DIY ships by LTL freight to Northbrook and surrounding communities such as Glenview, Deerfield, Northfield, Highland Park, Glencoe and Wheeling. The carrier calls ahead to schedule curbside delivery, typically within 10–14 business days.

Pay in full, split payments at 0% for up to 8 months, or build now and pay later through Affirm, Klarna or Shop Pay, subject to approval. Planning ahead? A-DIY Reserve holds today’s price with a $250 non-refundable deposit.