Modern pergola securely mounted beside a garden patio

Specialist foundation installation

Pergola Foundations & Post Bases

Pergola foundations must hold slender posts accurately while resisting the leverage created by the frame, roof and wind.

Illustrative image

50+ years

Family groundwork experience

Full 10-year

Written JustBases guarantee

Call Craig directly

Friendly practical advice

One clear price

Written foundation scope

Three easy steps

From first call to a finished foundation

Getting started is simple. We will guide you through the choices and explain any information needed before installation.

01

Call, message or send the form

Tell Craig about the pergola, approximate size and postcode. You do not need a finished specification to start.

02

Talk through the options

We discuss the site and suitable foundations, identify any supplier information needed and provide a clear written quotation.

03

Install and hand over

Our team marks out and installs the agreed foundation, with the required checks before the next stage of your project.

Choose the foundation, not the complication

Foundation options for your pergola

These are the methods worth assessing for this application. The structure, support plan and actual ground determine the right choice—not a one-size-fits-all specification.

Prepared poured concrete base for a garden building
Concrete base example; a specialist foundation may need a different engineered detail.

Concrete

Concrete foundation

Individual reinforced footings or an engineered slab can receive base plates and anchors at the required centres.

Worth considering for: Aluminium and louvred pergolas with manufacturer-defined anchor details

Ask about this option →
Ground screws before installation
Ground-screw system example; product and support design are project-specific.

Installed ground screws

Ground screws and support frame

Ground screws with suitable heads can provide defined support points for some timber or lightweight pergola systems, subject to wind design and ground conditions.

Worth considering for: Dry-built pergolas, sloping gardens and timber frames with compatible connections

Ask about this option →
Example of a prepared paving-slab base
Paving-slab base example; only suitable where the supplier accepts this method.

Paving slabs

Paving-slab base

Paving is a useful surrounding finish, but structural posts normally need dedicated support beneath it rather than fixings into a loose slab.

Worth considering for: Pergolas integrated into a new seating terrace

Ask about this option →

Clear prices, agreed scope

A price for your project

Specialist foundations need a quotation matched to the structure, ground and installation scope. A generic garden-building price would not reliably represent this project. Call Craig with your idea and postcode to get started.

No VAT is added to the guide prices shown.

Get your exact written priceView the full base price guide

The structure

Its loads, footprint and accepted support arrangement.

The site

Ground conditions, levels, buried services and practical access.

The foundation package

Specified materials, installation and any agreed testing or supporting frame.

The written quotation

Clear inclusions, responsibilities and timing before work is booked.

Easy to start, free to ask

Tell us about your pergola

You do not need drawings or a finished specification before getting in touch. Send what you have and Craig will explain the useful next step.

Helpful details, if available

  • Pergola model and dimensions
  • Foundation or anchor drawing
  • Roof and screen options
  • Finished patio level
  • Power or lighting ducts
Craig Phillips of JustBases

Talk to Craig

Craig will listen to what you are planning and help establish the foundation information that matters.

Call Craig 01202 039753 Message Craig on WhatsApp

Online quote requests are normally answered within 24 hours, excluding weekends.

Request your free quote

Just give us your contact details and a short description of what you want to build. We will guide you through the rest.

Your enquiry

Pergola Foundations installation

Please provide either an email address or a phone number.

Add site photos, video or a drawing (optional)

Upload up to 5 photos or a short video of your site to help us provide an accurate quote.

0/5 files. JPG, PNG, WebP, PDF, MP4, MOV accepted — up to 100MB each.

Free, no-obligation quote. Your details are used to respond to this enquiry; see our privacy policy.

Planned around its use

What matters for your pergola

Modern pergola securely mounted beside a garden patio
Illustrative image — an example of the application, not a foundation specification.

We set out the post positions from the manufacturer's base plan and install the agreed concrete or ground-screw supports. Any new patio can then be detailed around the structural fixings rather than being asked to act as the footing itself.

Discuss your project with Craig →

Exact post spacing

Bolt groups and support centres must match the manufactured frame.

Wind resistance

Roof type, screens and garden exposure influence uplift and overturning demands.

Clean interfaces

Post bases, drainage and paving levels should meet neatly without concealing unsuitable fixings.

Services planned early

Motorised roofs, lighting and heaters may need conduits positioned before the surface is completed.

When the design and ground are suitable

Why consider ground screws?

Year-round flexibility

A screw-only foundation avoids pouring and curing concrete, reducing one source of weather-related delays. Unsafe access, flooding, frozen or unsuitable ground can still mean postponing installation.

Less digging and mess

Localised supports can reduce excavation and spoil compared with extensive concrete foundations. Clearance, pre-drilling, service trenches and machinery access may still disturb the site.

A lower-impact approach

Using less concrete and moving less spoil can reduce material use and transport. Retaining vegetation may benefit habitats, but trees and wildlife still need protection. Steel manufacture and the full project design matter to any carbon comparison.

Before installation

Dimensions, approvals and responsibilities

Please provide the manufacturer's foundation drawing, including bolt positions and any minimum concrete dimensions. The frame's outside size is not always the same as the footing centres.

Retractable roofs, fixed louvres and side screens can change both planning considerations and wind loads. Mention intended accessories even if they will be added later.

JustBases quotes the agreed foundation and groundwork. Product installation, specialist connections, commissioning and third-party design remain outside our scope unless the written quotation expressly includes them.

Genuine customer feedback

A full 10-year JustBases guarantee

Our full written guarantee covers installation workmanship and the foundation materials we supply, subject to your quotation. Read what customers say about our foundation work below, with the original job types and sources shown.

"I couldn't recommend Craig highly enough! Communication prior to the job was outstanding even considering our ever changing goal posts. Craig and his team turned up exactly at the agreed time, were well presented, friendly and professional. The cleanliness, attention to detail and quality of the job was outstanding."

— Verified Customer

Checkatrade · BH16 · 2020-05-27

Work listed by the source: Log cabin foundation

"Good standard of workmanship. Friendly and efficient. Prompt response for estimate and fitted into our timescale. Will be using the firm in future and thoroughly recommend them."

— Verified Customer

Checkatrade · SP6 · 2019-09-16

Work listed by the source: Concrete base for new summerhouse

"Craig and his team were very professional throughout the job. They worked tirelessly and extremely hard. The job involved digging up a thick reinforced concrete base. Then creating a whole new base with precision engineering in preparation to accept a new building on top. The result was an excellent job all round."

— Verified Customer

Checkatrade · BH24 · 2021-11-30

Work listed by the source: Building foundations and landscaping

Our service area

Foundation installation across the South

For this application we cover Dorset, Hampshire, South Wiltshire. Tell Craig the postcode and we will confirm the suitable installation options and travel requirements.

Straight answers before you decide

Pergola Foundations FAQs

Only if the underlying construction and anchor detail are confirmed as suitable. Paving slabs alone are not automatically a structural footing.

Still unsure? Send Craig a short enquiry and we will help with the next step.

Tell us what you want to build

An outline of the project and your postcode are enough to start.