Extensions Colchester

House Extensions Colchester & Essex

Spectrum Glazing is a leading builder of house extensions. We work in Colchester, Braintree, Brightlingsea, Maldon, Clacton on Sea, Chelmsford and Essex. Get in touch for a preliminary quote. We can and do travel further afield, so contact us to find out if we work in your area.

House Extensions Essex

Beautiful New Additions

Talk to us about how we can improve the value of your home. Just let us know what you’re looking for when you give us a call. We’ll talk to you about our courteous installation and give you an opening quote for your house extension.

Kitchen Extensions Colchester

Revitalised Kitchens in Essex

We can help you create a new kitchen with more space and sleek new kitchen hardware. Our Colchester team is happy to hear from you. If you have any questions regarding your next house extension, let us know. We don’t do hard sells, just honest conversation. Speak with someone from our team today.

Courteous Service

Just look at some of our testimonials. We’re known for being a respectful and diligent installation team. At Spectrum, we’ll ensure that you’re taken care of and talk you through our process.

Clean Installation

One Point of Contact

Clear Time Frames

10 Year Warranty

House Extensions Essex

An inviting new house extension is a wonderful way to add value to your home. Whether you’re looking for a new kitchen, bedroom, or living room, Spectrum can help you. Plus, we can help you choose a glass, solid or tiled roof. Make sure that you create a captivating space with excellent insulation so that you can enjoy it year round.

We can help you choose from any of our wide range of windows, and replacement roofs. We offer weatherproof materials like uPVC or aluminium. Decide whether or not you’ll install aluminium bifold or uPVC patio doors to the entrance of your engaging new house extension. Trust our well trained installation team with your next build.

single storey extension essex
double glazing Colchester

Honest Team

Speak with someone who cares. We make sure to walk through our process and our products with you, so that you have 100% clarity on everything that you're paying for. Speak with someone directly when you give us a call.

double glazing Colchester

Premium Suppliers

We use market leading suppliers because we know how important high quality products are to our customers. Read more about our products from Smart, Origin, Deceuninck, and Liniar. Our knowledgeable team can explain the benefits of each of our suppliers.

Improved Home Value

Create a fantastic new living space with your house extension. If you’re looking to create a new dining room or entertainment room, we can help. Create an open floorplan between your kitchen and dining room, or bring more natural light to your dining area. Spectrum can help you.

A house extension is the biggest step in improving your home value, especially if you plan on adding another room. Look through our website for casement, or tilt & turn windows. Our trusty team will make sure that you get a stylish and comfortable addition to your home.

house extension cost colchester

Frequently Asked Questions

Do I need planning permission for my house extension?

Not necessarily. Frequently we can help you build a house extension under permitted development. There are specific rules for house extensions under permitted development, but don’t worry. We know them inside and out.

What kind of house extensions do you do?

What other products do you offer?

Where else do you work?

home extensions essex
  • Extension Visualisers

  • VR Tour

House Extension Prices Colchester & Essex

Get a quote from us. If you anticipate needing a house extension soon, get in touch with our Colchester team. We’ll be able to talk to you about roofing, windows, styles, and more. You can give us a call or use our contact form. With a few details, we’ll be able to get back to you as quickly as possible.

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Get an Online Quote

Use our quoting engine today. With a few small details, we’ll be able to give you the basic information you need for your new house extension. Additionally you can call our team to speak with someone directly. We’ll be happy to hear from you.

"The fitting guys were a great laugh, enjoying several cups of tea! Everything was left really tidy and cleaned up well and I got to enjoy my conservatory for the end of this “supposed British summer”. We are now looking at getting our windows replaced with them as well, thoroughly recommend."

Oscar Holland

Maldon | 4th December 2021

"The sales, design and customer support staff have always been friendly and knowledgeable whenever we had a query. We also consider this product to be great value for money and it looks great too."

Una Anderson

Walton-on-the-Naze | 7th April 2020

"Fantastic job from the guys that fitted our new sash windows, we originally chose white but changed our minds after seeing an oak effect one in their office when we went to drop off a cheque. So glad we did, we’ve had so many compliments from people."

Bradley Lewis

Chelmsford | 30th November 2021

"We have just had a conservatory built. Would highly recommend. Good quality work. Very clean and tidy. Good price"

Joan Hodges

Danbury | July 17th 2020

"Couldn’t be happier with my new conservatory, having to now work from home, we needed the extra office space. We didn’t have a huge budget but we were able to get what we needed, perfect escape from the rest of the house!"

Ethan Brown

Brightlingsea | 11th December 2021

"Decent company. Easy to work with and friendly. "

David Rich

Colchester | 22nd January 2022

"I have recently had a conservatory built & I couldn't be more happier with the result. Build finished April 2022. The workmen were great, on time every day & a good laugh. The quality of workmanship was excellent. Richard & Kelly checked on the build almost daily, to see if everything was alright. If you had any questions or concerns, they were more than happy to assist. They paid attention to every little detail. Even when they were on holiday. Thank you to James, Ross, Gareth, Ryan, Rob, Richard & Kelly, for building a beautiful place for me to relax."

Mary Healy

Clacton-on-Sea | 30th May 2022

"Spectrum glazing where brilliant when choosing and building our new conservatory. They designed exactly what we wanted with Ultraroof, which is a brilliant idea and makes the room useable all year round. All members of staff are helpful and always available for assistance. The workmen used are professional and hardworking (even coming in awful weather). Overall, I'm very happy with the finished outcome of our new conservatory and very pleased we chose Spectrum Glazing over the other big named companies. If I had any more windows or doors needing doing I'd be using these guys will recommend to people as well. Thanks again guys!"

Emma Eade

Colchester | 7th November 2022

"Absolutely over the moon with our conservatory! Would 100% recommend this company, they listened to what we wanted and the result is better than what we imagined! The whole building team were also amazing. Thank you so much Spectrum Glazing! ⭐️⭐️⭐️⭐️⭐️"

Natalie King

Colchester | 10th November 2022

"Really impressed with the service (and price) of the windows we got (five windows front and back). We've had them in for over a year and not had any problems - in fact the only problem we had was on the day of install they couldn't get the biggest of the frames up our tight staircaise - but this was solved easily with them sorting a scaffolding thing to lift it up from the outside. Very happy with everything and I would definitely use them again."

Matt Court

Brightlingsea | 14th November 2022

"Couldn't be happier with both the end result and the service. We chose a local family run company for good reason, we have been burnt by the big guys before. From the initial planning by Rob who knows his stuff, planning and working with us to get exactly what we wanted, through surveys, and almost weekly site visits from Richard and kelly checking the standards and progress. I can't thank the fitters, Gareth & Ross enough, you guys worked through the november storms never wanting to slow the job down. Absolutely 5* service throughout. Were they the cheapest? No, but not the dearest either! you can't go cheap on a project like this, extending your home. They worked with us to complete by Christmas and again, Spectrum delivered...... literally. You get what you pay for and with spectrum we got 1st class."

Paul Woodwards

Holland on Sea | 22nd December

Our Happy Customers

Take a look at some of our testimonials from previous customers to see how we have helped transform homes across the area.

Other Areas We Design, Build and Install Home Extensions in Essex


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