Pergola & Covered Deck Building in Washington, IL
An unshaded deck in Washington is unusable from about 1 p.m. to 6 p.m. in July, which is exactly when people want to be on it. A pergola, a louvered roof, or a fully roofed section turns a deck you look at into a deck you live on. Newer construction from the rebuild years alongside established homes, most with generous back yards and mature trees.
How we build it in Washington
Pergolas over a deck have to be carried by the deck framing, so we start there: posts run through the deck to their own footings rather than sitting on the surface. Rolling ground east of the square with a lot of walkouts, so multi-level decks with a stair run to grade are the norm rather than the exception. Cedar structures get through-bolted connections and hidden hardware; aluminum and louvered systems get anchored per the manufacturer's uplift spec — which matters on the open ground around Washington, where wind loads are the real design case, not snow.
- Site walk for sun angle, roof line, and existing deck capacity
- Footing layout and JULIE locate
- Posts set to their own footings, through the deck where needed
- Beams and rafters cut, raised, and through-bolted
- Purlins, louvers, or roof panels installed
- Optional lighting, fans, and privacy panels wired and fitted
Two to five days depending on whether the deck framing needs reinforcement.
What Washington neighbors say.
These are verified customer reviews of Tazewell County Fence Co. — the same owners, crew and phone line behind Grizzly Deck & Rail.
“A section of our fence was damaged during these storms, and Tazewell County Fence Co. was able to repair it without trying to sell us an entirely new fence. The repaired section blends in well with the rest of the fence, and the price was fair.”
“Tazewell County Fence Co. installed woven wire fencing around part of our property, along with a large equipment gate. They explained the different post options, gave us a clear estimate, and helped us choose something that fit our budget. The fence looks strong and everything was completed professionally.”
“We had a chain-link fence installed for our backyard and dogs. Communication was easy, the pricing was reasonable, and the finished fence looks great. They also made sure the gates opened smoothly and were placed exactly where we needed them.”
Pergolas & Shade in Washington — questions we get
- What does a pergola cost in Washington, IL?
- Most Washington pergolas land between $4,500 and $16,000 installed. A straightforward 12x16 cedar pergola over an existing deck is usually $6,500–$11,000; powder-coated aluminum and adjustable-louver roofs sit at the top of the range.
- Can a pergola go on my existing deck?
- Sometimes. We check joist size, spacing, and footing depth first. If the deck wasn't framed to carry posts and uplift, we add footings and run new posts through the deck surface rather than bolting to boards that can't take it.
- Cedar or aluminum?
- Cedar has the warmth and can be stained to match the deck; it needs refinishing every few years. Aluminum is maintenance-free, spans further with smaller beams, and handles the wind exposure around Washington without seasonal tightening.
- Do pergolas need a permit in Washington?
- Washington requires a building permit and a site plan for decks; post-2013 rebuild areas are held to current wind and attachment detailing.