A trusted team with over 25 years experience

We love seeing how much we can turn an unremarkable house around, so that it not only looks fantastic but really starts meeting the home owners’ needs!

Hundreds of happy customers across Essex

We pride ourselves on delivering an excellent finish. Undertsanding our customers and working with them to achieve their vision. We’re proud of what we do, which is why our customers trust us with their homes.

About The Extension Company Colchester

The Extension company is owned and run by Merv Milburn, working closely with Warren and the rest of the team. We’re based in Colchester and operate throughout Essex, Suffolk and the surrounding areas.

We guarantee to be on site at all times to ensure that the building works stays on schedule and causes the minimal amount of disruption to the client.

We deliver

  • Well establish, financially stable business
  • Wealth of experience
  • Professional service
  • Extension and conversion specialists
  • Pragmatic and solutions driven approach

A reliable team

As a main contractor we take full responsibility for the project from the initial design concept through to the project completion. We bring in our tried and tested sub contractors and supply chain as and when needed who work under our management for the duration of the work

High Standards

We offer recommendations and references from architects, structural engineers and clients that we have worked with in the past. Most of our work comes through word of mouth so delivering what we promise is a critical part of our business

The Extension Company Colchester is accredited to the Federation of Master Builders. Most of the building projects we undertake are in Colchester and the surrounding areas including Mersea Island, Brightlingsea, Wivenhoe, Manningtree, Witham. Clacton On Sea and Braintree. 

We hold £10 million public and employers liability insurance which is peace of mind, we’re sure you’ll agree, that the service we provide will be top quality.


Merv has successfully run his own business for over 25 years and has a reputation for being meticulous about site organisation and operations. Originating from a trade background he has a wealth of practical knowledge and experience built up over the years yet still welcomes a challenge.


Warren has spent most of his career working as a Commercial Director for a main contractor for the last 20 years and brings a vast wealth of knowledge to TEC. He pays particular attention to pre-construction activity to ensure that things are right first time every time and oversees valuations and cost control.

Attention to detail

Looking for a house extension company?
Call us now on 07973 535 449 / 01206 765 297