A spacious, modern rear extension with double bifolding doors leading out to a luxurious patio area.
Rear home extension in Essex with anthracite bi-folding doors and open living area featuring a kitchen and dining area.

Specialist House Extension Design and Build Service

We specialise in house extensions, architectural design, house renovations and offer our services to Brentwood, Billericay, Wickford and many more popular places in Essex, meaning you’re never far away from our team of experienced professionals. Our bespoke house extensions, include modern house extensions for traditional and older houses, orangeries, and conservatories.

We pride ourselves on offering premium and contemporary home improvements, designed to expand your space and breathe new life, with the latest techniques and built using the highest grade materials. We also provide an unrivalled customer support service, ensuring every step of your installation is hassle-free and completed as quickly as possible.

Public Liability

Insurance

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10 Year Backed

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Our Services

We are here to better your home

Architectural Design
Complete Design and Build packages available using our Architectural Design Team.
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Design and Build Solution
Kirkwood Offer A Complete Design And Build Solution, from Idea to Reality.
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Modern House Extensions
Go For The Wow Factor With One Of Kirkwoods Modern House Extensions.
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Traditional House Extensions
With Our Brick Matching Service, Your New Extension Will Look Like Part Of The Existing House.
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Single Storey Extensions
5 Star Single Storey House Extension Builder In Essex
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Kitchen Extensions
Looking for that Extra Space for a Dining Table or Island?
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Flat Roof Extensions Specialists
Maximise Light With A Sky Lantern Professionally Installed By Kirkwood
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Glass Roof Extensions
Why Not Consider A Glass Roof Extension?
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Orangeries
Each of our conservatories and orangeries are uniquely designed to complement your home
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Conservatories
Each of our conservatories and orangeries are uniquely designed to complement your home
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Areas we cover

We are here to better your home with our architectural design and house extension build services

House Extension Locations

Architectural Design Locations

Conservatory Roof Replacements Locations

Take a look at our recent work

A collection of homes Kirkwood have improved and extended in Essex

What our customers say...

Our team is here to help with an objective to improve your living space

Zoe Hatcliff
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Another brilliant job completed. Thank you for never letting us down and completing within time frame. Won't hesitate to recommend you. Keep safe.
Vikki Thatcher
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Helpful and friendly. Top notch work at reasonable prices. Would definitely recommend
Sam Jarman
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Jamie and the team was great from start to finish. Would 100% recommend!
Arron Short
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Fantastic job, great guys and a very happy customer. Couldn't be happier with my single story extension would highly recommend
Gary Baker
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Jamie and the team at Kirkwood UK are professional punctual and extremely helpful 10/10 would recommend to anyone looking for a reliable builder
Olly Tait
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Jamie and his team were so profesional from start to finish and made the job a joy to watch our dream come together. Very knowledgeable and contactable throughout the process. Couldn't ask for a better outcome and value for money. Will definitely be recommending and 100% will use again! 5 star!!!
Ben Turner
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We used Kirkwood for our House Extension in Billericay, Essex. The project was managed by Jamie at Kirkwood and he took care of every step in the process. Kirkwood took care of the planning with their inhouse Architect, suggested a 3rd Party Building Control and right through to the build of the extension. This wasnt just an extension but a complete internal remodel. We are happy to recommend Kirkwood and in fact they have just completed a similar project at our neighbours house following our works.
Sandie
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I highly recommend the Kirkwood team! Exceptional workmanship, clear communication, Jamie & his team have provided the utmost as a polite & professional team! Very satisfied customer, looking forward to planning our loft conversion this year with you guys! Many thanks!
Andrew Morgan
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Fantastic service provided by Jamie and his team. Highly professional from start to finish, great communication with us throughout the project and wonderful attention to detail, making a tough project easier for us. Cannot recommend them highly enough.
Lindsay Alden
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A very professional company who listened to our thoughts and plans for our driveway and brought them to life. We have recommended them to friends who have also in turn recommended them to others, so their work speaks for itself. We are looking forward to Kirkwood transforming our back garden later this year.
Claire C
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Kirkwoods did a fantastic job if our garden after another company left us in the middle of the job with a building site for a garden. Jamie chatted through my plan with me and advised me regarding materials and the design. Their execution was exemplary as was their work ethic and reliability. I would not hesitate to recommend Kirkwoods to anyone.
Andrew Wiggins
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We’ve used Jamie and his kirkwood team for various construction work over the years. We have also seen them first hand on what they can offer their clients. Professional, punctual and quality of workmanship is second to none. We look forward to either working alongside them and when we need them using there services once again to help us with our ongoing projects.
Ellis Warwick
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Brilliant service throughout the whole project would definitely use again, Jamie spoke through all the plans and when completing the project it was done on time and to a very high standard
Frances Mulligan
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Really pleased with everything. All work done to a high standard and at a fair price. Will definitely be recommending 👍
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Need an all in one ‘design and build solution’?

House Extensions Designed and Built For You. This is what you get from our Home Extension Team:

  • Approved by UK’s Leading Building Inspectors
  • Expert Tradesman
  • Architectural Plans & Submission Included
  • Your Own Project Manager
  • 10 Year Guarantee
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Or Call 01268 350290

We specialise in all types of house extension builds

From open plan modern extensions, to traditional house extensions, we have it covered!

Piled Foundations

Piled Base House Extensions

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Tiled Roof House Extensions

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Modern Glass Roof Extension By Kirkwood in Essex

Glass Roof House Extensions in Essex

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Open Plan House Extensions in Essex

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Traditional House Extensions

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Modern Glass Roof Extension By Kirkwood in Essex

Modern House Extensions

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Latest News

Read the latest news and offers from Kirkwood Build – Essex’s Premium design and build service for home extensions 

Builders Near Me
Builders
Builders Near Me
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Planning application Basildon Council
House Extensions
Planning application Basildon Council
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Best Builder in Wickford
Other News
Best Builder in Wickford
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How do I know if my builder near me is reputable?
Builders
How do I know if my builder near me is reputable?
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How to find a good local builder near me?
Builders
How to find a good local builder near me?
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Local Builders Near Me
Builders
Local Builders Near Me
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Kitchen extension colour scheme balancing
Kitchen Extension
Kitchen extension colour scheme balancing
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Keeping a kitchen extension cool during the summer months
Kitchen Extension
Keeping a kitchen extension cool during the summer months
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How to make your kitchen extension the ideal entertainment space
Kitchen Extension
How to make your kitchen extension the ideal entertainment space
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How to choose the right kitchen lighting for your new extension
Kitchen Extension
How to choose the right kitchen lighting for your new extension
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How do I know if my home is suitable for a kitchen extension?
Kitchen Extension
How do I know if my home is suitable for a kitchen extension?
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Create an inside/outside space to connect your garden to your extension
House Extensions
Create an inside/outside space to connect your garden to your extension
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5 Things To Consider Before You Start A Home Extension
House Extensions
5 Things To Consider Before You Start A Home Extension
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Four Ways To Make Your Home Extension Sustainable
House Extensions
Four Ways To Make Your Home Extension Sustainable
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Create Your Dream Kitchen In Just Four Months
Kitchen Extension
Create Your Dream Kitchen In Just Four Months
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How big can a single story home extension be?
House Extensions
How big can a single story home extension be?
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Replacing My Old Conservatory: Transforming Your Space with Kirkwood Build
Other News
Replacing My Old Conservatory: Transforming Your Space with Kirkwood Build
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Transform Your Conservatory with a Roof Replacement
Conservatories
Transform Your Conservatory with a Roof Replacement
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Understanding Party Wall Agreements in Essex: Your Guide to Smooth Home Extensions
Other News
Understanding Party Wall Agreements in Essex: Your Guide to Smooth Home Extensions
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Flat Roof Extension vs Pitched Roof Extension
House Extensions
Flat Roof Extension vs Pitched Roof Extension
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Common mistakes to avoid when planning a house extension
House Extensions
Common mistakes to avoid when planning a house extension
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From Concept to Completion: A Step-by-Step Journey of a Single Storey Extension Project
House Extensions
From Concept to Completion: A Step-by-Step Journey of a Single Storey Extension Project
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Building Your Dream Home: Benefits of Design and Build Services for Extensions
House Extensions
Building Your Dream Home: Benefits of Design and Build Services for Extensions
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Maximising Space: How Single Storey Extensions Can Transform Your Living Area
House Extensions
Maximising Space: How Single Storey Extensions Can Transform Your Living Area
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Top 5 Inspiring Single Storey Extension Ideas for Your Home
House Extensions
Top 5 Inspiring Single Storey Extension Ideas for Your Home
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The Ultimate Guide to Single Storey Extensions: Design, Cost, and Process
House Extensions
The Ultimate Guide to Single Storey Extensions: Design, Cost, and Process
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Piling & House Extensions
House Extensions
Piling & House Extensions
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House Extensions, London
House Extensions
House Extensions, London
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New Website Launch
Other News
New Website Launch
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Looking for an Extension? Contact us today...

Get in touch with a member of our friendly team to find out more about our highly competitive prices. You can also get in touch should you have any questions about our range, prices, or any of our services. We look forward to hearing from you.

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