Modern house extension with bi-fold doors and open-plan kitchen completed by Zonex Group, construction company London
Premium Construction &
Property Development Across The UK

Building Better Spaces. Creating Lasting Value.

Zonex Group is a trusted construction company and building contractor in London that businesses and homeowners rely on for new builds, house extensions, refurbishments, and commercial fit-outs — delivered by a fully insured, accredited team with over 20 years of experience.

New Builds Extensions Renovations
Commercial Fit-Outs Property Development

Fully Insured Experienced Team Transparent Pricing Workmanship Guarantee
Modern fitted kitchen with island and bi-fold doors, a recent Zonex Group project
Welcome To Zonex

Trusted Construction Experts Delivering Quality & Value

Zonex Group is a leading construction and property solutions company based in the UK. We provide end-to-end services tailored to your needs with a commitment to quality, transparency, and customer satisfaction.

  • Experienced and Skilled Construction Team
  • High-Quality Materials and Workmanship
  • On-Time Project Delivery
  • Competitive Pricing with No Hidden Costs
  • Comprehensive After-Sales Support

Start Your Next Project With Zonex

Let's bring your vision to life with our expert team and proven construction solutions.

Get Free Quote
Our Services

Comprehensive Construction & Property Solutions

As a trusted construction company and building contractor London clients rely on, Zonex Group deliver end-to-end construction services for residential and commercial projects — from new build homes and house extension builders to commercial fit out contractor work, renewable energy installation, and ongoing property maintenance. Every project is backed by fixed price quotes, clear project management, and a fully insured, accredited team.

New build detached house exterior with garage, built by Zonex Group construction company London

New Builds

Complete new build homes built to your specification, from groundworks to final finish. Repairable new starts, full project management, and quality craftsmanship guaranteed.

  • Bespoke new homes
  • Project management
  • Quality craftsmanship
Rear house extension with large glazed doors completed by Zonex Group builders

Extensions

Expand your living space with our house extension builders — trusted extension builders in London for rear/side wrap-around builds, and multi-storey extensions designed and built to building regulations approval.

  • House extensions
  • Rear extensions
  • Wrap around extensions
Tradesperson completing full property refurbishment work on site in London

Refurbishments

Full property renovations, kitchen and bathroom renovation, and permit-specialist refurbishment work for homeowners and landlords across London.

  • Full property renovations
  • Kitchens & bathrooms
  • Period property specialists
Solar panels installed on residential roof by Zonex Group renewable energy team

Renewable Energy

Solar panel installation, battery storage, and heat pump installation to make your property energy-efficient and future-proof.

  • Solar PV installations
  • Battery storage
  • Energy efficient solutions
Modern open-plan office fit-out completed by Zonex Group commercial fit out contractor

Commercial Fit-Outs

Office fit-outs, retail and hospitality builds, and workplace transformations delivered by a specialist commercial fit out contractor team.

  • Office fit-outs
  • Retail & hospitality
  • Workspace solutions
New residential property development site managed by Zonex Group London

Property Development

Ground-up development, site acquisition support, and full property development company London services for investors and developers.

  • Residential development
  • Site acquisition
  • Investment opportunities
Bespoke fitted kitchen renovation with island unit by Zonex Group

Kitchens & Bathrooms

Bespoke kitchen and bathroom renovation, luxury fittings, and full fitting and plumbing services.

  • Bespoke fitted kitchens
  • Luxury bathroom suites
  • Tiling & finishing
Dormer loft conversion bedroom with Velux windows completed by Zonex Group

Loft Conversions

Dormer and hip-to-gable loft conversion company builds, Velux loft conversions, and fully architect-designed conversions.

  • Dormer & hip-to-gable
  • Master suite conversions
  • Planning & building regs
Landscaped garden with patio and turf installed by Zonex Group exterior landscaping team

Landscaping & Exterior

Patios, driveways, garden design and turfing, and full exterior landscaping and outdoor living builds.

  • Patios & driveways
  • Garden design & turfing
  • Fencing & outdoor works
Zonex Group maintenance engineer carrying out planned property repairs

Property Maintenance

Planned & reactive repairs, facilities management, landlord & portfolio care.

  • Planned & reactive repairs
  • Facilities management
  • Landlord & portfolio care
Recent Projects

A Selection Of Our Recent Work

Real projects, real budgets, real results. Browse a selection of our recent new build, extension, and commercial fit-out work completed across London and the South East.

Completed kitchen extension with bi-fold doors, Wimbledon London, by Zonex Group
4.9
Kitchen Extension

Kitchen Extension

Wimbledon, London · 14-week build A rear kitchen extension with bi-fold doors and a vaulted ceiling, delivered for a growing family who needed more open-plan living space.
£180,000View Project
Full house renovation exterior after completion, Richmond Surrey, by Zonex Group
4.9
Full House Renovation

Full House Renovation

Richmond, Surrey
£320,000View Project
New build family home exterior completed in Esher Surrey by Zonex Group
4.9
New Build Home

New Build Home

Esher, Surrey
£780,000View Project
Dormer loft conversion bedroom completed in Balham London by Zonex Group
4.9
Loft Conversion

Loft Conversion

Balham, London
Commercial office fit-out interior completed in Central London by Zonex Group, commercial fit out contractor
4.9
Commercial Fit-Out

Office Fit-Out

Central London
£250,000View Project
Solar panel and heat pump installation on residential property in Kent by Zonex Group
4.9
Renewable Energy

Solar & Heat Pump Install

Kent
Rear house extension with glazed doors completed by Zonex Group
4.9
House Extension

Rear House Extension

£100k – £180kView Project
Bespoke kitchen renovation with island unit completed by Zonex Group
4.9
Kitchen Renovation

Kitchen Renovation

£30k – £80kView Project
Modern bathroom renovation with walk-in shower completed by Zonex Group
4.9
Bathroom Renovation

Bathroom Renovation

£15k – £45kView Project
Hip-to-gable loft conversion with Velux windows completed by Zonex Group
4.9
Loft Conversion

Loft Conversion

£50k – £120kView Project
Period property home renovation completed by Zonex Group London
4.9
Full House Renovation

Home Renovation

£150k – £400kView Project
Single storey rear extension with skylights completed by Zonex Group
4.9
House Extension

Single Storey Extension

£80k – £150kView Project
Living room interior renovation with feature fireplace by Zonex Group
4.9
Interior Renovation

Living Room Renovation

£20k – £60kView Project
Resin driveway and garden landscaping installed by Zonex Group
4.9
Landscaping

Driveway & Landscaping

£15k – £60kView Project
How We Work

Our Process

Every construction company London client works with follows a different process — here's exactly how we manage yours, from free consultation to final handover.

Consultation

We discuss your vision, goals and budget.

Survey

Detailed on-site survey and feasibility assessment.

Quote

Transparent, itemised fixed pricing.

Planning

Drawings, planning and approvals handled.

Construction

Skilled delivery with weekly updates.

Inspection

Thorough final inspection and quality checks.

Completion

Handover complete, with full aftercare & warranty.

Our Coverage

Proudly Serving Across The UK

Zonex Group delivers premium construction and property development across London, Surrey, Essex, Kent, Berkshire, Manchester & the wider UK.

  • London
  • Surrey
  • Essex
  • Kent
  • Berkshire
  • Manchester & Wider UK
Check Your Area
Map of the UK with pins marking Zonex Group's coverage areas: London, Surrey, Essex, Kent, Berkshire, and Manchester © OpenStreetMap contributors
Investment Guide

Estimated Project Costs

Kitchen renovation cost guide

Kitchen Renovation

From £30k

Typical range £30k – £80k

*Indicative guide price, final quote depends on survey.

Bathroom renovation cost guide

Bathroom Renovation

From £15k

Typical range £15k – £45k

*Indicative guide price, final quote depends on survey.

Loft conversion cost guide

Loft Conversion

From £50k

Typical range £50k – £120k

*Indicative guide price, final quote depends on survey.

Single storey extension cost guide

Single Storey Extension

From £80k

Typical range £80k – £150k

*Indicative guide price, final quote depends on survey.

Rear house extension cost guide

Rear House Extension

From £100k

Typical range £100k – £180k

*Indicative guide price, final quote depends on survey.

Full house renovation cost guide

Full House Renovation

From £150k

Typical range £150k – £400k

*Indicative guide price, final quote depends on survey.

Living room renovation cost guide

Living Room Renovation

From £20k

Typical range £20k – £60k

*Indicative guide price, final quote depends on survey.

Garden office cost guide

Garden Office

From £20k

Typical range £20k – £50k

*Indicative guide price, final quote depends on survey.

Driveway and landscaping cost guide

Driveway & Landscaping

From £15k

Typical range £15k – £60k

*Indicative guide price, final quote depends on survey.

New build house cost guide

New Build House

From £700k

Typical range £700k – £2M

*Indicative guide price, final quote depends on survey.

Figures are indicative guide prices based on our completed projects. Every quote is tailored to your property and requirements — get a free, no-obligation quote.

Client Reviews

What Our Clients Say

JH
James & HollyWimbledon, LondonKitchen Extension

"ZONEX GROUP delivered our renovation with professionalism, quality and attention to detail. The communication was excellent from start to finish."

SP
Sarah PatelEsher, SurreyNew Build Home

"From planning to handover the team kept us informed every step. The new build was completed on time and on budget — exceptional quality throughout."

MR
Marcus ReidCentral LondonOffice Fit-Out

"We used ZONEX for our office fit-out and the result is outstanding. Minimal disruption, clear pricing and a finish that impressed all our clients."

PC
Private ClientSurreyNew Build Home

"ZONEX GROUP delivered our dream home with professionalism, quality and attention to every detail. The communication was excellent from start to finish. We couldn't be happier."

4.9 / 5 Read Google Reviews Leave A Review
Latest News

Latest News, Tips & Updates

Single storey house extension
Extensions Guide

How To Plan A Home Extension

What to consider before you start — from planning permission to budgeting for a rear or side return extension.

Kitchen renovation ideas
Renovation Guide

Kitchen Renovation Ideas

Layout, materials and finishes to think about when planning your bespoke fitted kitchen renovation.

Loft conversion benefits
Loft Conversions Guide

Benefits Of A Loft Conversion

Why a loft conversion is one of the most cost-effective ways to add space and value to your home.

FAQs

Frequently Asked Questions

A single-storey house extension in London typically costs between £45,000 and £90,000 depending on size, finish, and structural complexity. Zonex Group provides a fixed price quote after a free consultation and site survey, so there are no hidden costs once work begins.

Most house extensions take between 10 and 16 weeks from groundworks to completion, depending on scope. Zonex Group provides a full project timeline at the quotation stage as part of our project management process.

Many single-storey extensions fall under Permitted Development Rights and don't need full planning permission, but this depends on your property, its size, and local council rules. Zonex Group handles planning permission applications and building regulations approval as part of our design and build service.

Yes. Zonex Group is a fully insured and accredited construction company London clients have trusted for over 20 years, with 150+ completed projects and a 98% client satisfaction rate.

A commercial fit out contractor typically handles partitioning, electrics, flooring, ceilings, and furnishing to convert a shell space into a finished office, retail, or hospitality unit. Zonex Group manages the full process from design through to completion.

A standard dormer loft conversion company project typically costs £35,000-£60,000 in London, depending on layout and finish. Zonex Group provides a fixed price quote after an initial site visit.

Zonex Group follows a 6-step process: consultation, site visit, design & planning, quotation, construction, and completion — with a free consultation and fixed-price quote provided before any work begins.

Zonex Group is a construction company London based, serving clients across London and the wider South East for residential and commercial projects.

Look for a construction company that is fully insured and accredited, provides a fixed price quote in writing, has a proven portfolio of completed projects, and is transparent about their process and timeline from the first consultation to handover. Zonex Group meets all of these standards, with 150+ completed projects and a 98% client satisfaction rate.

Zonex Group offers new builds, house extensions, refurbishments, kitchens & bathrooms, loft conversions, commercial fit-outs, renewable energy installations, property development, landscaping, and property maintenance — all backed by a fully insured, accredited team.

Ready to Start Your Project?

Book your free consultation today and let's bring your vision to life.

Get In Touch

Ready To Start Your Project?

Book your free consultation today and let's bring your project to life.

Phone+44 7737 000007
Emailinfo@zonex-group.co.uk
Address86-90 Paul Street, London, EC2A 4NE
Map showing Zonex Group's office location at 86-90 Paul Street, London, EC2A 4NE © OpenStreetMap contributors

Send Us A Message

Get a free consultation and fixed price quote from a fully insured construction company — we reply within 24 hours.