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Essex Based Building Company

Offering a wide variety of building services such as Loft Conversions, Extensions and House Refurbishments.

Loft Conversions

Whether it’s adding a bedroom or a bathroom we have you covered

Kitchen Extensions

Are you looking for that dream kitchen in a new larger space?

Home Refurbishment

We are also refurbishment specialists, giving life to tired spaces.


Weather damage or new roofs we offer all kinds of roof services.


Need a new garden wall or some brickwork repairs? Contact us.

& Much More

Foundation work, Groundworks, Steel works and much more.

About Us

WJ Construction are a group of well-established builders from Essex with over 10 years experience.

At WJ Construction we offer a wide range of services, including; loft extensions and conversions, house refurbs and most types of building work.  Each of our services is tailored specifically for your needs.

All of our team of plumbers, plasterers and electricians are fully trained and accredited and we have an outstanding reputation for reliability, professionalism, quality of workmanship, cleanliness and good health and safety practices.

Here at WJ Construction we fully understand that having any work done on your property can be a stressful or inconvenient process – we aim to do our utmost to ensure this is a stress free and comfortable time for you.  We are guests in your home and we are committed to keeping an excellent level of communication and workmanship for the duration of the work.

For a free no-obligation quote please do not hesitate to call us today to discuss your requirements!

Free No Obligation Quote

We have a checkatrade rating of 9.91

Giving our customers the piece of mind that we will always get the job done!

Client Testimonials

“I was really impressed, All work was finished to a high standard with no delays. I found all staff very polite and understanding and to be able to cater to my needs.”

Customer in Harlow

“Warren was brilliant. He understood exactly what needed to be done & worked very hard no matter the weather and with a smile! And he communicated through the project to let us know what was going on.”

Customer in London

“Warren was great in accommodating a very tight schedule on very short notice when the scheduled builder had a break down and could not make it in. Saved the day as we had no time to lose.”

Customer in Cambridge

Contact Us

Contact Information

Harlow, Essex, CM19 5NN