Pergolas Built to Last —
Darlington & the North East.
Timber and oak pergolas installed on concreted post supports (not bolted into paving). Solid, level, and finished to sit right with the rest of the garden. Fixed written quotes, up to 10-year workmanship guarantee.
- 18 years' experience
- Checkatrade 10/10 (33+ reviews)
- Up to 10-year workmanship guarantee
- £2M Public & Employers' Liability
- Site visit usually within 2 days
What we build, who it's for, and why it's worth doing properly.
What it is
A full pergola installation — from ground clearance and concreted post foundations to fully framed rafters, cross beams, decorative rafter tails and any planting battens or roof panels. Built as a proper garden structure, not a flat-pack bolted to paving.
Who it's for
Homeowners who want a defined outdoor room over a patio, deck or seating area — shade in summer, a frame for climbing plants, and somewhere lights and heaters can be mounted permanently.
When it's needed
When a patio or deck feels featureless, when a hot tub area needs shade and privacy, when a bare wall of the house wants softening, or when the garden needs an architectural anchor point.
Why professional install matters
The pergolas we're called out to repair almost all failed the same way — posts bolted to shallow slabs instead of concreted into the ground. First proper storm and they lean, then rot at the base plate. A pergola is a wind sail; the foundations have to hold the load.
What happens when the job is done cheaply — or left too long.
Off-the-shelf pergolas from a garden centre look great in the box and awful two years later. Bolted to a patio with metal plates, they lift in storms and rock in wind. Built properly, they're a 20-year fixture.
Wobbling in the wind
Post-anchor bolted to a slab flexes with every gust. Fixings loosen, timber splits around them, whole structure starts moving.
Rotting at the base
Timber posts sitting on top of paving with no ventilation wick moisture up and rot at the ground line. Not visible until the post breaks.
Sagging rafters
Undersized rafters over long spans deflect in the middle. Add a wisteria or grape vine and it turns into a permanent bow.
Common mistakes we're called out to fix:
- Post-anchor plates bolted to slabs instead of concreted post supports — fails in the first winter storm.
- Timber posts in direct ground contact with no post shoe or gravel drainage — rot at the base within 5 years.
- Rafters undersized for the span — 4×2 sagging over a 3.5m span with climbing plants on top.
- No wind-brace or cross-brace on freestanding pergolas over 2.4m — whole structure flexes in gusts.
- Fixings that aren't stainless or coated — rust stains bleed down oak and hardwood permanently.
A clear, staged system — so you always know what's next.
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1
Free site visit & design
James walks the space, confirms post positions clear of buried services, measures for rafter span and headroom, discusses timber and style (softwood / hardwood / oak, flat or pitched, roof panels or open rafters).
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2
Fixed written quote
One price covering foundations, timber, fixings, roof panels if any, staining or oiling and clean-down. Rafter and post sizes specified.
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3
Post foundations
Post holes dug to 600mm+ (deeper for taller structures), post shoes cast into wet concrete pads level with paving or ground level. Timber posts sit in the shoe with a ventilation gap — never in direct ground contact.
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4
Frame assembly
Posts plumbed and braced, main beams notched onto post tops (never surface-bolted only), cross beams and rafters cut and fixed with stainless or coated structural screws.
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5
Finishing & roof
Decorative rafter tails cut, wind bracing added where relevant, roof panels (polycarbonate, louvred, or timber slat) fitted if specified. Timber stained, oiled or left to silver depending on your preference.
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6
Clean-down & handover
Site cleared, structure walkaround, written guarantee and aftercare notes. Any electrical points (lighting, heater sockets) mounted at frame stage.
Specific outcomes — not vague promises.
Concreted post foundations
Every post concreted to 600mm+ with a post shoe. The pergola stays where you put it — no lean, no lift, no wobble.
Properly sized rafters
Rafter timber sized for the actual span and expected load (climbing plants, lighting, wind). No sagging in year three.
Softwood, hardwood or oak
Softwood painted or stained for budget builds, hardwood for a warm natural look, green oak for a premium 20+ year structure. Honest advice at survey.
Typically 2–4 days on site
Most residential pergolas up to 4m × 3m finish in 3 days including finishing. Larger or roofed structures run 4–5 days.
Built around existing patios & decks
We work in around existing hard landscaping without lifting it — post shoes cut in cleanly against paving or decking edges.
Up to 10-year workmanship guarantee
Written into the quote. Timber lifespan depends on species and finish — we'll explain in writing.
The detail most contractors won't put in writing.
Pergolas span from a simple 4-post square over a patio to a full lean-to roofed structure attached to the house. Here's how the build changes across those variants.
Freestanding pergolas
Four (or six, for larger frames) posts concreted into the ground with post shoes, main beams notched onto the post tops, secondary beams and rafters cross-lapped over the mains. Wind bracing at each corner on structures over 2.4m tall.
Lean-to pergolas (attached to the house)
One face fixed to the house wall via a ledger board bolted through render to the brickwork or timber frame beneath. Ledger sealed to the wall to shed water. Free posts concreted opposite. Rafters fall away from the house for drainage.
Roofed pergolas (polycarbonate / slats / louvred)
Rafters oversized for load, with a fall of at least 1:60 for water shedding. Polycarbonate for full weather cover, timber slats or battens for filtered light, motorised louvred systems for adjustable shade. All added at frame stage, not retro-fitted.
Softwood, hardwood, oak
Softwood (pressure-treated): cheapest, needs staining every 2–3 years. Hardwood (iroko, balau, cedar): warm natural tone, 15+ year lifespan. Green oak: premium, silvers to a beautiful grey, 20–25+ year lifespan. All three suit different budgets and looks.
Lighting, heating & climbing plants
Low-voltage LED strip along the underside of the rafters, cabling run at frame stage. Overhead patio heaters mounted on cross beams. Wire trellis for wisteria, clematis or grape — planted at a corner post, trained across the rafters over 2–3 seasons.
Combining a pergola with decking or patio
If we're building the pergola over an existing patio, we set post shoes into concrete pads cut carefully into the paving. If we're building patio + pergola in one project, post shoes are cast in during the sub-base stage and the paving cut around them — cleanest finish possible.
Frequently asked questions.
Ready for a pergolas that lasts?
Free site visit within a couple of days. Fixed written price shortly after — no deposit, no pressure, no ballpark guesswork. Backed by up to 10-year workmanship guarantee and £2M public liability insurance.
Mon–Sat, 7am–7pm • Yard 10, Wards Industrial Estate, Darlington DL1 2UQ