---
title: "Decking Installers in Bucks & Surrey, Hi Design Landscaping"
url: https://www.hdlandscapingandpaving.co.uk/services/decking
description: "Timber, hardwood and composite decking built level and square across Amersham, Beaconsfield, Chesham & Farnham. 12-month guarantee, £10m insured, 0% deposit."
lang: en-GB
---

01494 211167 (+441494211167)

9am–7pm, 7 days Serving Bucks & Surrey hdlandscapingandpaving@gmail.com

Call Now: +441494211167
Get Free Quote: https://www.hdlandscapingandpaving.co.uk/contact

Image: Hardwood deck with hidden fixings adjoining a landscaped garden (https://www.hdlandscapingandpaving.co.uk/__l5e/assets-v1/58306f52-72af-4994-84f1-3f2cd03a0e17/decking-hardwood-artificial-grass-08.jpeg)

# Timber & Composite Decking Built Level, Square And Safe Across Bucks & Surrey

Softwood, hardwood and composite decking built on properly footed sub-frames, level underfoot, square in the corners, and covered by a 12-month workmanship guarantee.

Get My Free Quote: https://www.hdlandscapingandpaving.co.uk/contact

Call 01494 211167: +441494211167

100+ reviews across Google, Rated People & Yell 12-month workmanship guarantee Same-day written quote

35+

Years combined experience

100+

Reviews (4.5★+)

£10m

Public liability insurance

12 mo.

Workmanship guarantee

0%

Deposit required

## About Our Decking Service

### What it is

Decking is a raised or ground-level timber or composite platform built on a joisted sub-frame supported by concrete pad footings or ground screws. Done properly, it flexes evenly under load, stays square through the seasons, and provides a smooth, safe outdoor floor.

### Who it's for

Homeowners extending outdoor living space, families wanting a garden entertaining area, and property owners across Amersham, Beaconsfield, Chesham, the Chalfonts, Great Missenden, Hazlemere and Farnham replacing tired old decks with something built to modern spec.

### When you need it

You need new decking when an existing deck feels spongy, tilts, has rotten boards or a wobbly balustrade, or when you're creating a new outdoor entertaining zone from scratch. Composite is the natural upgrade when a softwood deck reaches end of life.

### Why professional installation matters

Decking fails at the sub-frame long before the boards. Cheap installs use undersized joists, no bearer supports, and pad stones sat on turf. We build sub-frames from C24 pressure-treated timber on concrete pad footings, level to laser accuracy, and space boards for proper drainage.

## What Happens If You Leave It

Small problems don't stay small. Here's what we see when homeowners delay, and the corner-cutting mistakes that make it worse.

### Spongy, sagging deck boards

Joists spaced too far apart (over 400mm centres on softwood, over 300mm on composite) sag between supports. The deck feels alive underfoot within 3–5 years.

### Rotten bearers and frame collapse

Sub-frames sat on soil or bark chip rot from below within 5 years. Once the frame goes, the whole deck goes with it, often without warning.

### Slippery, splintery boards

Deck boards without grooves, ribbing or a proper aftercare seal turn slick in winter and splinter in summer. Composite avoids both, but only the higher-density brands do it well.

## Our Decking Process

A clear, in-person system from first visit to final handover, no surprises, no scope creep.

1. 1
   ### In-person site survey
   We take levels, check for existing footings, discuss timber vs composite, and sketch layout including steps, balustrades and lighting.
2. 2
   ### Fixed written quote, same day
   Itemised, footings, sub-frame, decking, fascia, balustrades, steps, disposal of old deck. All fixed in writing.
3. 3
   ### Site prep & footings
   Existing deck stripped, ground cleared, concrete pad footings poured to correct depth and spacing (or ground screws installed for suspended decks).
4. 4
   ### Sub-frame construction
   C24 pressure-treated joists at correct centres (400mm timber, 300mm composite), bearers on pad stones, whole frame levelled with a laser and squared.
5. 5
   ### Boards, fascia & handover
   Deck boards fixed with correct spacing, hidden or countersunk fixings, fascia and step risers installed. Full walk-round, 12-month workmanship guarantee starts.

## Why Homeowners Choose Hi Design

### Level, square and safe underfoot

Laser-levelled sub-frame means no dips, no rocking, no trip hazards, for the life of the deck.

### Correct spacing for drainage

Boards spaced 5–8mm apart so water sheds through, timber can dry, and rot doesn't get a foothold.

### Long-life composite option

Composite decking (Trex, Millboard, Composite Prime) carries 25-year warranties and needs zero staining or sealing.

## Recent Decking Projects

A selection of finished decking work across Buckinghamshire and Surrey.

Image: Hardwood decking with tight, evenly spaced boards forming a rear garden terrace (https://www.hdlandscapingandpaving.co.uk/__l5e/assets-v1/21f34d33-b0a7-4e79-81e3-77caace96f72/decking-hardwood-05.jpeg)

Image: Hardwood deck stepping down onto an artificial grass lawn in a family back garden (https://www.hdlandscapingandpaving.co.uk/__l5e/assets-v1/6ea32824-70ae-4239-bcab-e66639dc5bdd/decking-hardwood-artificial-grass-01.jpeg)

Image: Raised hardwood deck alongside an artificial lawn with a timber edge trim (https://www.hdlandscapingandpaving.co.uk/__l5e/assets-v1/74516bd1-f82e-420e-8b33-7a6ba998d46d/decking-hardwood-artificial-grass-02.jpeg)

Image: Hardwood deck sitting flush with the lawn on a level timber sub-frame (https://www.hdlandscapingandpaving.co.uk/__l5e/assets-v1/58306f52-72af-4994-84f1-3f2cd03a0e17/decking-hardwood-artificial-grass-08.jpeg)

Image: Hardwood platform decking with a picture-frame edge board detail (https://www.hdlandscapingandpaving.co.uk/__l5e/assets-v1/5256d3f2-aebe-4076-9233-e21724df0b15/decking-hardwood-platform-04.jpeg)

Image: Hardwood decking with a matching built-in raised planter along one edge (https://www.hdlandscapingandpaving.co.uk/__l5e/assets-v1/15c63e9b-4816-4bbc-8dc2-4b41059ae196/decking-hardwood-raised-planter-07.jpeg)

## Decking: The Detail

### Timber vs composite, the honest comparison

Softwood (Tanalised pine, redwood): cheapest option, 8–12 year life, needs annual clean and re-oil, natural look. Hardwood (Balau, Ipé, Yellow Balau): 20+ year life, premium look and feel, higher cost and needs specialist fixings. Composite (Trex Enhance Basics, Composite Prime HD, Millboard): 25-year warranty, no maintenance beyond a wash-down, higher upfront cost, doesn't fade or splinter. We install all three, the right choice depends on budget and how much aftercare you want to do.

### Sub-frame spec, joists, bearers, footings

Domestic decks use C24 grade pressure-treated 145x45mm joists at 400mm centres (timber decking) or 300mm centres (composite). Bearers 150x75mm minimum, sat on 300x300x100mm concrete pad footings dug to firm subsoil. Ground clearance minimum 150mm to allow air flow beneath. Steel joist hangers and coach screws, never nailed only.

### Boards, fixings and spacing

Softwood/hardwood boards fixed with A2 stainless steel screws (pre-drilled on hardwood), spaced 5–6mm apart for drainage and expansion. Composite boards use hidden clip systems (Cortex, Camo) for a fastener-free surface, spaced 6–8mm, critical for expansion in summer heat. All boards laid with grooves facing down for grip in wet weather.

### Steps, balustrades and building regs

Decks over 600mm above ground need a balustrade (Part K building regs), 1100mm high on domestic decks, with baluster gaps under 100mm. Steps built with 180mm rise, 250mm going, and non-slip nosings. Decks attached to the house are notched onto a wall-plate flashed against the DPC, we never bolt straight through render.

### Residential vs commercial and roof decks

Residential garden decks: standard timber sub-frame on pad footings. Commercial (pubs, restaurants, holiday parks): heavier joists, non-slip Class R11 boards, and Building Control-compliant balustrading. Roof decks and balconies: aluminium sub-frame on rubber pedestals with a protective membrane layer over the roof waterproofing.

## Decking, Common Questions

### How much does decking cost per square metre?

### How long does decking take to install?

### Is composite decking worth the extra cost?

### Do I need planning permission for a new deck?

### How long will a timber deck last?

### What guarantee do you offer on decking?

### Can you replace just the boards on my existing deck?

### Do you build steps, balustrades and integrated lighting?

## Related services & areas

Patios & Paving: https://www.hdlandscapingandpaving.co.uk/services/patios
Fencing: https://www.hdlandscapingandpaving.co.uk/services/fencing
Artificial Grass: https://www.hdlandscapingandpaving.co.uk/services/artificial-grass
Brick & Retaining Walls: https://www.hdlandscapingandpaving.co.uk/services/walls
Great Missenden: https://www.hdlandscapingandpaving.co.uk/areas/great-missenden
Chalfont St Giles: https://www.hdlandscapingandpaving.co.uk/areas/chalfont-st-giles
Contact: https://www.hdlandscapingandpaving.co.uk/contact
Home: https://www.hdlandscapingandpaving.co.uk/

## Build A Deck That Stays Level For A Decade

Free in-person survey. Fixed written quote same day. 12-month workmanship guarantee.

Call 01494 211167: +441494211167

Free site visit · Fixed written quote same day · 0% deposit · £10m insured

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